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Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	cmcsa
Entity Registrant Name	COMCAST CORP
Entity Central Index Key	0001166691
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 148,617
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
NBCUniversal Media LLC [Member]
Entity Registrant Name	NBCUniversal Media, LLC
Entity Central Index Key	0000902739
Entity Filer Category	Non-accelerated Filer
Entity Public Float		$ 0
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Class A Common Stock [Member]
Entity Common Stock, Shares Outstanding	2,432,953,988
Class B Common Stock [Member]
Entity Common Stock, Shares Outstanding	9,444,375

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 2,295	$ 3,910
Investments [Current]	106	602
Receivables, net	6,896	6,321
Programming rights	1,213	839
Other current assets	1,793	1,859
Total current assets	12,303	13,531
Film and television costs	5,855	5,727
Investments	3,224	3,135
Property and equipment, net	33,665	30,953
Franchise rights	59,364	59,364
Goodwill	32,945	27,316
Other intangible assets, net	16,946	16,980
Other noncurrent assets, net	2,272	2,180
Total assets	166,574	159,186
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	6,215	5,638
Accrued participations and residuals	1,572	1,347
Deferred revenue	1,302	915
Accrued expenses and other current liabilities	5,462	5,293
Current portion of long-term debt	3,627	4,217
Total current liabilities	18,178	17,410
Long-term debt, less current portion	48,994	43,864
Deferred income taxes	33,566	32,959
Other noncurrent liabilities	10,637	10,819
Commitments and contingencies
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	1,221	1,066
Equity:
Preferred stock - authorized, 20,000,000 shares; issued, zero	0	0
Common stock	29	30
Additional paid-in capital	38,518	38,805
Retained earnings	21,413	21,539
Treasury stock	(7,517)	(7,517)
Accumulated other comprehensive income (loss)	(174)	(146)
Total Comcast Corporation shareholders' equity	52,269	52,711
Noncontrolling interests	1,709	357
Total equity	53,978	53,068
Total liabilities and equity	166,574	159,186
NBCUniversal Media LLC [Member]
Current Assets:
Cash and cash equivalents	1,410	1,248
Receivables, net	5,411	4,842
Programming rights	1,200	825
Other current assets	841	823
Total current assets	8,862	7,738
Film and television costs	5,847	5,714
Investments	965	882
Property and equipment, net	9,521	8,138
Goodwill	20,364	14,908
Intangible assets, net	13,806	14,187
Other noncurrent assets, net	1,325	1,037
Total assets	60,690	52,604
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	1,564	1,388
Accrued participations and residuals	1,572	1,347
Program obligations	765	687
Deferred revenue	1,242	821
Accrued expenses and other current liabilities	1,675	1,422
Note payable to Comcast	1,750	865
Current portion of long-term debt	1,163	1,023
Total current liabilities	9,731	7,553
Long-term debt, less current portion	11,331	9,214
Accrued participations residuals and program obligations	1,163	1,149
Other noncurrent liabilities	3,790	3,721
Commitments and contingencies
Redeemable noncontrolling interests	372	330
Equity:
Member's capital	32,834	30,529
Accumulated other comprehensive income (loss)	(212)	(159)
Total NBCUniversal member's equity	32,622	30,370
Noncontrolling interests	1,681	267
Total equity	34,303	30,637
Total liabilities and equity	60,690	52,604
Class A Common Stock [Member]
Equity:
Common stock	29	25
Class B Common Stock [Member]
Equity:
Common stock	$ 0	0
Class A Special Common Stock [Member]
Equity:
Common stock		$ 5

Consolidated Balance Sheet (Parenthetical) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Preferred stock, authorized	20,000,000	20,000,000
Preferred stock, issued	0	0
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	7,500,000,000	7,500,000,000
Common stock, issued	2,869,349,502	2,496,598,612
Common stock, outstanding	2,432,953,988	2,131,137,862
Treasury stock common shares	436,395,514	365,460,750
Class A Special Common Stock [Member]
Common stock, par value		$ 0.01
Common stock, authorized		7,500,000,000
Common stock, issued		471,419,601
Common stock, outstanding		400,484,837
Treasury stock common shares		70,934,764
Class B Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	75,000,000	75,000,000
Common stock, issued	9,444,375	9,444,375
Common stock, outstanding	9,444,375	9,444,375

Consolidated Statement of Income - USD ($) $ in Millions	3 Months Ended								12 Months Ended
Consolidated Statement of Income - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	$ 74,510	$ 68,775	$ 64,657
Costs and Expenses:
Programming and production									22,550	20,912	19,670
Other operating and administrative									21,339	19,854	18,575
Advertising, marketing and promotion									5,943	5,086	4,978
Depreciation									6,781	6,337	6,254
Amortization									1,899	1,682	1,617
Total costs and expenses									58,512	53,871	51,094
Operating income	4,002	4,001	4,105	3,890	3,787	3,745	3,804	3,568	15,998	14,904	13,563
Other Income (Expense):
Interest expense									(2,702)	(2,617)	(2,574)
Investment income (loss), net									81	296	576
Equity in net income (losses) of investees, net									(325)	97	(86)
Other income (expense), net									320	(215)	(364)
Nonoperating income (expense)									(2,626)	(2,439)	(2,448)
Income before income taxes									13,372	12,465	11,115
Income tax expense									(4,959)	(3,873)	(3,980)
Net income									8,413	8,592	7,135
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									(250)	(212)	(319)
Net income attributable to Parent	$ 1,971	$ 1,996	$ 2,137	$ 2,059	$ 1,925	$ 2,592	$ 1,992	$ 1,871	$ 8,163	$ 8,380	$ 6,816
Basic earnings per common share attributable to Comcast Corporation shareholders	$ 0.8	$ 0.81	$ 0.85	$ 0.82	$ 0.75	$ 1	$ 0.77	$ 0.72	$ 3.28	$ 3.24	$ 2.6
Diluted earnings per common share attributable to Comcast Corporation shareholders	0.79	0.8	0.84	0.81	0.74	0.99	0.76	0.71	3.24	3.2	2.56
Dividends declared per common share	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.225	$ 0.225	$ 0.225	$ 0.225	$ 1	$ 0.9	$ 0.78
NBCUniversal Media LLC [Member]
Revenue									$ 28,462	$ 25,428	$ 23,650
Costs and Expenses:
Programming and production									13,418	12,318	11,770
Other operating and administrative									5,891	5,364	4,949
Advertising, marketing and promotion									2,795	2,158	2,199
Depreciation									669	654	639
Amortization									870	841	772
Total costs and expenses									23,643	21,335	20,329
Operating income									4,819	4,093	3,321
Other Income (Expense):
Interest expense									(495)	(508)	(515)
Investment income (loss), net									5	27	17
Equity in net income (losses) of investees, net									(376)	46	(93)
Other income (expense), net									(102)	(218)	(402)
Nonoperating income (expense)									(968)	(653)	(993)
Income before income taxes									3,851	3,440	2,328
Income tax expense									(227)	(143)	(206)
Net income									3,624	3,297	2,122
Net income attributable to Parent									$ 3,414	$ 3,115	$ 1,968

Consolidated Statement of Income (NBCUniversal) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	$ 74,510	$ 68,775	$ 64,657
Costs and Expenses:
Programming and production									22,550	20,912	19,670
Other operating and administrative									21,339	19,854	18,575
Advertising, marketing and promotion									5,943	5,086	4,978
Depreciation									6,781	6,337	6,254
Amortization									1,899	1,682	1,617
Total costs and expenses									58,512	53,871	51,094
Operating income	4,002	4,001	4,105	3,890	3,787	3,745	3,804	3,568	15,998	14,904	13,563
Other Income (Expense):
Interest expense									(2,702)	(2,617)	(2,574)
Investment income (loss), net									81	296	576
Equity in net income (losses) of investees, net									(325)	97	(86)
Other income (expense), net									320	(215)	(364)
Nonoperating income (expense)									(2,626)	(2,439)	(2,448)
Income before income taxes									13,372	12,465	11,115
Income tax expense									(4,959)	(3,873)	(3,980)
Net income									8,413	8,592	7,135
Net income attributable to Parent	$ 1,971	$ 1,996	$ 2,137	$ 2,059	$ 1,925	$ 2,592	$ 1,992	$ 1,871	8,163	8,380	6,816
NBCUniversal Media LLC [Member]
Revenue									28,462	25,428	23,650
Costs and Expenses:
Programming and production									13,418	12,318	11,770
Other operating and administrative									5,891	5,364	4,949
Advertising, marketing and promotion									2,795	2,158	2,199
Depreciation									669	654	639
Amortization									870	841	772
Total costs and expenses									23,643	21,335	20,329
Operating income									4,819	4,093	3,321
Other Income (Expense):
Interest expense									(495)	(508)	(515)
Investment income (loss), net									5	27	17
Equity in net income (losses) of investees, net									(376)	46	(93)
Other income (expense), net									(102)	(218)	(402)
Nonoperating income (expense)									(968)	(653)	(993)
Income before income taxes									3,851	3,440	2,328
Income tax expense									(227)	(143)	(206)
Net income									3,624	3,297	2,122
Net (income) loss attributable to noncontrolling interests									(210)	(182)	(154)
Net income attributable to Parent									$ 3,414	$ 3,115	$ 1,968

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income	$ 8,413	$ 8,592	$ 7,135
Unrealized gains (losses) on marketable securities, net of deferred taxes	1	33	185
Deferred gains (losses) on cash flow hedges, net of deferred taxes	(106)	(5)	25
Amounts reclassified to net income:
Realized (gains) losses on marketable securities, net of deferred taxes	(1)	(99)	(301)
Realized (gains) losses on cash flow hedges, net of deferred taxes	64	46	(3)
Employee benefit obligations, net of deferred taxes	74	(139)	181
Currency translation adjustments, net of deferred taxes	(89)	(38)	(29)
Comprehensive income	8,356	8,390	7,193
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(250)	(212)	(319)
Other comprehensive (income) loss attributable to noncontrolling interests	29	0	9
Comprehensive income attributable to Parent	8,135	8,178	6,883
NBCUniversal Media LLC [Member]
Net income	3,624	3,297	2,122
Unrealized gains (losses) on marketable securities, net of deferred taxes	0	0	0
Deferred gains (losses) on cash flow hedges, net of deferred taxes	(21)	25	(5)
Amounts reclassified to net income:
Employee benefit obligations, net of deferred taxes	60	(106)	95
Currency translation adjustments, net of deferred taxes	(121)	(62)	(41)
Comprehensive income	3,542	3,154	2,171
Net (income) loss attributable to noncontrolling interests	(210)	(182)	(154)
Other comprehensive (income) loss attributable to noncontrolling interests	29	0	0
Comprehensive income attributable to Parent	$ 3,361	$ 2,972	$ 2,017

Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Unrealized gains (losses) on marketable securities, deferred taxes	$ (1)	$ (19)	$ (110)
Deferred gains (losses) on cash flow hedges, deferred taxes	62	3	(14)
Realized (gains) losses on marketable securities, deferred taxes	1	59	177
Realized (gains) losses on cash flow hedges, deferred taxes	(38)	(27)	2
Employee benefit obligations, deferred taxes	(43)	82	(108)
Currency translation adjustments, deferred taxes	$ 34	$ 23	$ 12

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net income	$ 8,413	$ 8,592	$ 7,135
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,680	8,019	7,871
Share-based compensation	567	513	419
Noncash interest expense (income), net	205	180	167
Equity in net (income) losses of investees, net	325	(97)	86
Cash received from investees	168	104	120
Net (gain) loss on investment activity and other	(318)	4	(169)
Deferred income taxes	958	1,165	16
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	(708)	(33)	(721)
Film and television costs, net	(299)	(562)	44
Accounts payable and accrued expenses related to trade creditors (cash flow)	384	153	(667)
Other operating assets and liabilities	403	(1,093)	(141)
Net cash provided by operating activities	18,778	16,945	14,160
Investing Activities
Capital expenditures	(8,499)	(7,420)	(6,596)
Cash paid for intangible assets	(1,370)	(1,122)	(1,009)
Acquisitions and construction of real estate properties	(178)	(43)	(1,904)
Acquisitions, net of cash acquired	(1,786)	(477)	(99)
Proceeds from sales of businesses and investments	433	666	1,083
Purchases of investments	(784)	(191)	(1,223)
Other	220	(146)	234
Net cash provided by (used in) investing activities	(11,964)	(8,733)	(9,514)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	135	(504)	1,345
Proceeds from borrowings	5,486	4,182	2,933
Repurchases and repayments of debt	(4,378)	(3,175)	(2,444)
Repurchases and retirements of common stock	(6,750)	(4,251)	(2,000)
Dividends paid	(2,437)	(2,254)	(1,964)
Issuances of common stock	36	35	40
Purchase of NBCUniversal noncontrolling common equity interest			(10,761)
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(232)	(220)	(215)
Settlement of Station Venture liability			(602)
Other	(289)	167	(211)
Net cash provided by (used in) financing activities	(8,429)	(6,020)	(13,879)
Increase (decrease) in cash and cash equivalents	(1,615)	2,192	(9,233)
Cash and cash equivalents, beginning of period	3,910	1,718	10,951
Cash and cash equivalents, end of period	2,295	3,910	1,718
NBCUniversal Media LLC [Member]
Operating Activities
Net income	3,624	3,297	2,122
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,539	1,495	1,411
Share-based compensation	0	0	7
Equity in net (income) losses of investees, net	376	(46)	93
Cash received from investees	60	74	90
Net (gain) loss on investment activity and other	56	136	345
Deferred income taxes	(11)	(12)	(10)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	(718)	(25)	(752)
Film and television costs, net	(304)	(571)	2
Accounts payable and accrued expenses related to trade creditors (cash flow)	97	(88)	(789)
Other operating assets and liabilities	585	264	505
Net cash provided by operating activities	5,304	4,524	3,024
Investing Activities
Capital expenditures	(1,386)	(1,221)	(1,160)
Cash paid for intangible assets	(211)	(130)	(113)
Acquisitions of real estate properties	0	0	(1,705)
Acquisitions, net of cash acquired	(1,522)	(118)	(111)
Proceeds from sales of businesses and investments	218	13	2
Purchases of investments	(649)	(35)	(236)
Other	150	(122)	111
Net cash provided by (used in) investing activities	(3,400)	(1,613)	(3,212)
Financing Activities
Repurchases and repayments of debt	(1,022)	(906)	(92)
Proceeds from (repayments of) borrowings from Comcast, net	854	97	799
Redemption Transaction distribution	0	0	(3,200)
Distributions to member	(1,385)	(1,641)	(1,422)
Distributions to noncontrolling interests	(189)	(177)	(183)
Settlement of Station Venture liability	0	0	(602)
Other	0	(3)	(66)
Net cash provided by (used in) financing activities	(1,742)	(2,630)	(4,766)
Increase (decrease) in cash and cash equivalents	162	281	(4,954)
Cash and cash equivalents, beginning of period	1,248	967	5,921
Cash and cash equivalents, end of period	$ 1,410	$ 1,248	$ 967

Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	NBCUniversal Media LLC [Member]	Redeemable Noncontrolling Interests And Redeemable Subsidiary Preferred Stock [Member]	Class A Common Stock [Member]	Class A Special Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock at Cost [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] NBCUniversal Media LLC [Member]	Noncontrolling Interests [Member]	Noncontrolling Interests [Member] NBCUniversal Media LLC [Member]	Redeemable Noncontrolling Interest [Member] NBCUniversal Media LLC [Member]	Member's Capital [Member] NBCUniversal Media LLC [Member]
Beginning Balance at Dec. 31, 2012	$ 49,796		$ 16,998	$ 25	$ 6	$ 0	$ 40,547	$ 16,280	$ (7,517)	$ 15		$ 440
Beginning balance at Dec. 31, 2012		$ 32,254									$ (65)		$ 419	$ 131	$ 31,900
Stock compensation plans	232						603	(371)
Repurchases and retirements of common stock	(2,000)				(1)		(555)	(1,444)
Employee stock purchase plans	98						98
Compensation Plans		7													7
Redemption Transaction Distribution		3,200													(3,200)
Dividends declared	(2,046)	(1,422)						(2,046)							(1,422)
Other comprehensive income (loss)	67	49	(9)							67	49
Purchase of NBCUniversal noncontrolling common equity interest	(1,677)		(17,006)				(1,651)			(26)
Purchase of subsidiary shares from noncontrolling interests, net		(33)													(33)
Redeemable subsidiary preferred stock			725
Contributions from (distributions to) noncontrolling interests, net	(136)	(155)	(22)									(136)	(155)	(22)
Other	(210)	(275)	70				(152)					(58)	(111)	102	(164)
Net income (loss)	6,934	2,102	201					6,816				118	134	20	1,968
Ending balance at Dec. 31, 2013		29,327									(16)		287	231	29,056
Ending Balance at Dec. 31, 2013	51,058		957	25	5	0	38,890	19,235	(7,517)	56		364
Stock compensation plans	299						732	(433)
Repurchases and retirements of common stock	(4,251)						(928)	(3,323)
Employee stock purchase plans	118						118
Redemption Transaction Distribution		0
Dividends declared	(2,320)	(1,641)						(2,320)							(1,641)
Other comprehensive income (loss)	(202)	(143)								(202)	(143)
Issuance of subsidiary shares to noncontrolling interests	11		85									11		85
Contributions from (distributions to) noncontrolling interests, net	(132)	(152)	(19)									(132)	(152)	(24)
Other	(29)	(13)	(33)				(7)					(22)	(12)		(1)
Net income (loss)	8,516	3,259	76					8,380				136	144	38	3,115
Ending balance at Dec. 31, 2014		30,637									(159)		267	330	30,529
Ending Balance at Dec. 31, 2014	53,068		1,066	25	5	0	38,805	21,539	(7,517)	(146)		357
Stock compensation plans	337						739	(402)
Repurchases and retirements of common stock	(6,750)				(1)		(1,345)	(5,404)
Employee stock purchase plans	136						136
Redemption Transaction Distribution		0
Dividends declared	(2,483)	(1,385)						(2,483)							(1,385)
Contribution from member		252													252
Other comprehensive income (loss)	(57)	(82)								(28)	(53)	(29)	(29)
Contributions from (distributions to) noncontrolling interests, net	(146)	(159)	11									(146)	(159)	(30)
Reclassification of Class A Special common stock	0			4	(4)
Universal Studios Japan	1,440	1,429										1,440	1,440		(11)
Other	106	31	58				183					(77)	(4)	28	35
Net income (loss)	8,327	3,580	86					8,163				164	166	44	3,414
Ending balance at Dec. 31, 2015		$ 34,303									$ (212)		$ 1,681	$ 372	$ 32,834
Ending Balance at Dec. 31, 2015	$ 53,978		$ 1,221	$ 29	$ 0	$ 0	$ 38,518	$ 21,413	$ (7,517)	$ (174)		$ 1,709

Business and Basis of Presentation	12 Months Ended
Business and Basis of Presentation	Dec. 31, 2015
Basis of Presentation	Note 1: Business and Basis of Presentation We are a global media and technology company with two primary businesses, Comcast Cable and NBCUniversal. We were incorporated under the laws of Pennsylvania in December 2001. Through our predecessors, we have developed, managed and operated cable systems since 1963. We present our operations for Comcast Cable in one reportable business segment, referred to as Cable Communications, and our operations for NBCUniversal in four reportable business segments. The Cable Networks, Broadcast Television, Filmed Entertainment and Theme Parks segments comprise the NBCUniversal businesses (collectively, the “NBCUniversal segments”). See Note 18 for additional information on our reportable business segments. Our Cable Communications segment primarily manages and operates cable systems that serve residential and business customers in the United States. As of December 31, 2015, our cable systems had 27.7 million total customer relationships and served 22.3 million video customers, 23.3 million high-speed Internet customers and 11.5 million voice customers. Our Cable Networks segment consists primarily of a diversified portfolio of cable television networks. Our cable networks are comprised of our national cable networks that provide a variety of entertainment, news and information, and sports content, our regional sports and news networks, our international cable networks, and our cable television studio production operations. Our Broadcast Television segment consists primarily of the NBC and Telemundo broadcast networks, our owned NBC and Telemundo local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations. Our Filmed Entertainment segment primarily produces, acquires, markets and distributes filmed entertainment worldwide. Our films are produced primarily under the Universal Pictures, Illumination and Focus Features names. Our Theme Parks segment consists primarily of our Universal theme parks in Orlando, Florida and Hollywood, California. In November 2015, NBCUniversal acquired a 51% interest in the Universal Studios theme park in Osaka, Japan (“Universal Studios Japan”). Our Theme Parks segment also receives fees from our agreements with third parties that own and operate the Universal Studios Singapore theme park, as well as from the Universal Studios Japan theme park, to license the right to use the Universal Studios brand name and other intellectual property. Our other business interests, which are included in Corporate and Other, consist primarily of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses. Basis of Presentation The accompanying consolidated financial statements include all entities in which we have a controlling voting interest and variable interest entities (“VIEs”) required to be consolidated in accordance with generally accepted accounting principles in the United States (“GAAP”). We translate assets and liabilities of our foreign operations where the functional currency is the local currency, primarily the euro, British pound, and Japanese yen, into U.S. dollars at the exchange rate as of the balance sheet date and translate revenue and expenses using average monthly exchange rates. The related translation adjustments are recorded as a component of accumulated other comprehensive income (loss). Any foreign currency transaction gains and losses are included in our consolidated statement of income. Reclassifications Reclassifications have been made to our consolidated financial statements for the prior years to conform to classifications used in 2015.
NBCUniversal Media LLC [Member]
Basis of Presentation	Note 1: Business and Basis of Presentation Unless indicated otherwise, throughout these notes to the consolidated financial statements, we refer to NBCUniversal and its consolidated subsidiaries as “we,” “us” and “our.” We are one of the world’s leading media and entertainment companies that develops, produces and distributes entertainment, news and information, sports, and other content for global audiences. We present our operations as the following four reportable business segments: Cable Networks, Broadcast Television, Filmed Entertainment and Theme Parks. See Note 17 for additional information on our reportable business segments. Our Cable Networks segment consists primarily of a diversified portfolio of cable television networks. Our cable networks are comprised of our national cable networks that provide a variety of entertainment, news and information, and sports content, our regional sports and news networks, our international cable networks, and our cable television studio production operations. Our Broadcast Television segment consists primarily of the NBC and Telemundo broadcast networks, our owned NBC and Telemundo local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations. Our Filmed Entertainment segment primarily produces, acquires, markets and distributes filmed entertainment worldwide. Our films are produced primarily under the Universal Pictures, Illumination and Focus Features names. Our Theme Parks segment consists primarily of our Universal theme parks in Orlando, Florida and Hollywood, California. In November 2015, we acquired a 51% interest in the Universal Studios theme park in Osaka, Japan (“Universal Studios Japan”). Our Theme Parks segment also receives fees from our agreements with third parties that own and operate the Universal Studios Singapore theme park, as well as from the Universal Studios Japan theme park, to license the right to use the Universal Studios brand name and other intellectual property. Basis of Presentation The accompanying consolidated financial statements include all entities in which we have a controlling voting interest and variable interest entities (“VIEs”) required to be consolidated in accordance with generally accepted accounting principles in the United States (“GAAP”). Transactions between NBCUniversal and both Comcast and Comcast’s consolidated subsidiaries are reflected in these consolidated financial statements and disclosed as related party transactions when material. We translate assets and liabilities of our foreign operations where the functional currency is the local currency, primarily the euro, British pound, and Japanese yen, into U.S. dollars at the exchange rate as of the balance sheet date and translate revenue and expenses using average monthly exchange rates. The related translation adjustments are recorded as a component of accumulated other comprehensive income (loss). Any foreign currency transaction gains and losses are included in our consolidated statement of income.

Accounting Policies	12 Months Ended
Accounting Policies	Dec. 31, 2015
Accounting Policies	Note 2: Accounting Policies Our consolidated financial statements are prepared in accordance with GAAP, which requires us to select accounting policies, including in certain cases industry-specific policies, and make estimates that affect the reported amount of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. Actual results could differ from these estimates. We believe that the judgments and related estimates for the following items are critical in the preparation of our consolidated financial statements: valuation and impairment testing of cable franchise rights (see Note 9) film and television costs (see Note 6) In addition, the following accounting policies are specific to the industries in which we operate: capitalization and amortization of film and television costs (see Note 6) installation revenue and costs for connecting customers to our cable systems (see revenue recognition below and Note 8) Information on our other accounting policies and methods that are used in the preparation of our consolidated financial statements are included, where applicable, in their respective footnotes that follow. Below is a discussion of accounting policies and methods used in our consolidated financial statements that are not presented within other footnotes. Revenue Recognition Cable Communications Segment Our Cable Communications segment generates revenue primarily from subscriptions to our video, high-speed Internet and voice services (“cable services”) and from the sale of advertising. We recognize revenue from cable services as each service is provided. Customers are typically billed in advance on a monthly basis based on the services and features they receive and the type of equipment they use. Since installation revenue obtained from the connection of customers to our cable systems is less than the related direct selling costs, we recognize revenue as connections are completed. We manage credit risk by screening applicants through the use of internal customer information, identification verification tools and credit bureau data. If a customer’s account is delinquent, various measures are used to collect outstanding amounts, including termination of the customer’s cable services. As part of our distribution agreements with cable networks, we generally receive an allocation of scheduled advertising time on cable networks that our Spotlight business sells to local, regional and national advertisers. We recognize advertising revenue when the advertising is aired or viewed. In most cases, the available advertising units are sold by our sales force. In some cases, we work with representation firms as an extension of our sales force to sell a portion of the advertising units allocated to us. We also represent the advertising sales efforts of other multichannel video providers in some markets. Since we are acting as the principal in these arrangements, we record the advertising that is sold in revenue and the fees paid to representation firms and multichannel video providers in other operating and administrative expenses. Revenue earned from other sources, such as our home security and automation services, is recognized when services are provided or events occur. Under the terms of our cable franchise agreements, we are generally required to pay to the cable franchising authority an amount based on our gross video revenue. We normally pass these fees through to our cable services customers and classify the fees as a component of revenue with the corresponding costs included in other operating and administrative expenses. Cable Networks and Broadcast Television Segments Our Cable Networks segment generates revenue primarily from the distribution of our cable network programming to multichannel video providers, from the sale of advertising on our cable networks and related digital media properties, from the licensing of our owned programming through various distribution platforms, from the sale of our owned programming through digital distribution services such as iTunes, and from the programming our cable production studio sells to third-party networks and subscription video on demand services. Our Broadcast Television segment generates revenue primarily from the sale of advertising on our broadcast networks, owned local broadcast television stations and related digital media properties, from the licensing of our owned programming through various distribution platforms, including to cable and broadcast networks, from the fees received under retransmission consent agreements and from the programming our broadcast television production studio sells to third-party networks and subscription video on demand services. We recognize revenue from distributors as programming is provided, generally under multiyear distribution agreements. From time to time, the distribution agreements expire while programming continues to be provided to the distributor based on interim arrangements while the parties negotiate new contract terms. Revenue recognition is generally limited to current payments being made by the distributor, typically under the prior contract terms, until a new contract is negotiated, sometimes with effective dates that affect prior periods. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. Advertising revenue for our Cable Networks and Broadcast Television segments is recognized in the period in which commercials are aired or viewed. In some instances, we guarantee audience ratings for the commercials. To the extent there is a shortfall in the ratings that were guaranteed, a portion of the revenue is deferred until the shortfall is settled, primarily by providing additional advertising units. We recognize revenue from the licensing of our owned programming and programming produced by our studios for third parties when the content is available for use by the licensee, and when certain other conditions are met. When license fees include advertising time, we recognize the component of revenue associated with the advertisements when they are aired or viewed. Filmed Entertainment Segment Our Filmed Entertainment segment generates revenue primarily from the worldwide distribution of our produced and acquired films for exhibition in movie theaters, from the licensing of our owned and acquired films through various distribution platforms, and from the sale of our owned and acquired films on standard-definition video discs and Blu-ray discs (together, “DVDs”) and through digital distribution services. Our Filmed Entertainment segment also generates revenue from producing and licensing live stage plays, from the distribution of filmed entertainment produced by third parties, and from Fandango, our movie ticketing and entertainment business. We recognize revenue from the distribution of films to movie theaters when the films are exhibited. We recognize revenue from the licensing of a film when the film is available for use by the licensee, and when certain other conditions are met. We recognize revenue from DVD sales, net of estimated returns and customer incentives, on the date that DVDs are delivered to and made available for sale by retailers. Theme Parks Segment Our Theme Parks segment generates revenue primarily from ticket sales and guest spending at our Universal theme parks in Orlando, Florida; Hollywood, California; and, as of November 2015, Osaka, Japan, as well as from licensing and other fees. We recognize revenue from advance theme park ticket sales when the tickets are used. For annual passes, we recognize revenue on a straight-line basis over the period following the activation date. Cable Communications Programming Expenses Cable Communications programming expenses are the fees we pay to license the programming we distribute to our video customers. Programming is generally acquired under multiyear distribution agreements, with rates typically based on the number of customers that receive the programming, channel positioning and the extent of distribution. From time to time, these contracts expire and programming continues to be provided under interim arrangements while the parties negotiate new contract terms, sometimes with effective dates that affect prior periods. While payments are typically made under the prior contract’s terms, the amount of programming expenses recorded during these interim arrangements is based on our estimates of the ultimate contract terms expected to be negotiated. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. When our Cable Communications segment receives incentives from cable networks for the licensing of their programming, we defer a portion of these incentives, which are included in other current and noncurrent liabilities, and recognize them over the term of the contract as a reduction to programming expenses. Advertising Expenses Advertising costs are expensed as incurred. Cash Equivalents The carrying amounts of our cash equivalents approximate their fair values. Our cash equivalents consist primarily of money market funds and U.S. government obligations, as well as commercial paper and certificates of deposit with maturities of three months or less when purchased. Derivative Financial Instruments We use derivative financial instruments to manage our exposure to the risks associated with fluctuations in interest rates, foreign exchange rates and equity prices. Our objective is to manage the financial and operational exposure arising from these risks by offsetting gains and losses on the underlying exposures with gains and losses on the derivatives used to economically hedge them. Our derivative financial instruments are recorded in our consolidated balance sheet at fair value. The impact of our derivative financial instruments on our consolidated financial statements was not material for all periods presented. Asset Retirement Obligations Certain of our cable franchise agreements and lease agreements contain provisions requiring us to restore facilities or remove property in the event that the franchise or lease agreement is not renewed. We expect to continually renew our cable franchise agreements and therefore cannot reasonably estimate any liabilities associated with such agreements. A remote possibility exists that franchise agreements could be terminated unexpectedly, which could result in us incurring significant expense in complying with restoration or removal provisions. We do not have any significant liabilities related to asset retirements recorded in our consolidated financial statements
NBCUniversal Media LLC [Member]
Accounting Policies	Note 2: Accounting Policies Our consolidated financial statements are prepared in accordance with GAAP, which requires us to select accounting policies, including in certain cases industry-specific policies, and make estimates that affect the reported amount of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. Actual results could differ from these estimates. We believe that the judgments and related estimates for the following items are critical in the preparation of our consolidated financial statements: revenue recognition (see below) film and television costs (see Note 6) goodwill and intangible assets (see Note 9) In addition, the following accounting policies are specific to the industries in which we operate: capitalization and amortization of film and television costs (see Note 6) Information on our other accounting policies and methods that are used in the preparation of our consolidated financial statements are included, where applicable, in their respective footnotes that follow. Below is a discussion of accounting policies and methods used in our consolidated financial statements that are not presented within other footnotes. Revenue Recognition Cable Networks and Broadcast Television Segments Our Cable Networks segment generates revenue primarily from the distribution of our cable network programming to multichannel video providers, from the sale of advertising on our cable networks and related digital media properties, from the licensing of our owned programming through various distribution platforms, from the sale of our owned programming through digital distribution services such as iTunes, and from the programming our cable production studio sells to third-party networks and subscription video on demand services. Our Broadcast Television segment generates revenue primarily from the sale of advertising on our broadcast networks, owned local broadcast television stations and related digital media properties, from the licensing of our owned programming through various distribution platforms, including to cable and broadcast networks, from the fees received under retransmission consent agreements and from the programming our broadcast television production studio sells to third-party networks and subscription video on demand services. We recognize revenue from distributors as programming is provided, generally under multiyear distribution agreements. From time to time, the distribution agreements expire while programming continues to be provided to the distributor based on interim arrangements while the parties negotiate new contract terms. Revenue recognition is generally limited to current payments being made by the distributor, typically under the prior contract terms, until a new contract is negotiated, sometimes with effective dates that affect prior periods. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. Advertising revenue for our Cable Networks and Broadcast Television segments is recognized in the period in which commercials are aired or viewed. In some instances, we guarantee audience ratings for the commercials. To the extent there is a shortfall in the ratings that were guaranteed, a portion of the revenue is deferred until the shortfall is settled, primarily by providing additional advertising units. We recognize revenue from the licensing of our owned programming and programming produced by our studios for third parties when the content is available for use by the licensee, and when certain other conditions are met. When license fees include advertising time, we recognize the component of revenue associated with the advertisements when they are aired or viewed. Filmed Entertainment Segment Our Filmed Entertainment segment generates revenue primarily from the worldwide distribution of our produced and acquired films for exhibition in movie theaters, from the licensing of our owned and acquired films through various distribution platforms, and from the sale of our owned and acquired films on standard-definition video discs and Blu-ray discs (together, “DVDs”) and through digital distribution services. Our Filmed Entertainment segment also generates revenue from producing and licensing live stage plays, from the distribution of filmed entertainment produced by third parties, and from Fandango, our movie ticketing and entertainment business. We recognize revenue from the distribution of films to movie theaters when the films are exhibited. We recognize revenue from the licensing of a film when the film is available for use by the licensee, and when certain other conditions are met. We recognize revenue from DVD sales, net of estimated returns and customer incentives, on the date that DVDs are delivered to and made available for sale by retailers. Theme Parks Segment Our Theme Parks segment generates revenue primarily from ticket sales and guest spending at our Universal theme parks in Orlando, Florida; Hollywood, California; and, as of November 2015, Osaka, Japan, as well as from licensing and other fees. We recognize revenue from advance theme park ticket sales when the tickets are used. For annual passes, we recognize revenue on a straight-line basis over the period following the activation date. Advertising Expenses Advertising costs are expensed as incurred. Cash Equivalents The carrying amounts of our cash equivalents approximate their fair values. Our cash equivalents consist primarily of money market funds and U.S. government obligations, as well as commercial paper and certificates of deposit with maturities of three months or less when purchased. Derivative Financial Instruments We use derivative financial instruments to manage our exposure to the risks associated with fluctuations in foreign exchange rates and interest rates. Our objective is to manage the financial and operational exposure arising from these risks by offsetting gains and losses on the underlying exposures with gains and losses on the derivatives used to economically hedge them. Our derivative financial instruments are recorded in our consolidated balance sheet at fair value. The impact of our derivative financial instruments on our consolidated financial statements was not material for all periods presented.

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2015
Recent Accounting Pronouncements	Note 3: Recent Accounting Pronouncements Revenue Recognition In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue, and by reducing the number of standards to which an entity has to refer. In July 2015, the FASB voted to defer the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. The updated accounting guidance provides companies with alternative methods of adoption. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements and our method of adoption. Consolidations In February 2015, the FASB updated the accounting guidance related to consolidation under the variable interest entity and voting interest entity models. The updated accounting guidance modifies the consolidation guidance for VIEs, limited partnerships and similar legal entities. The updated guidance is effective for us as of January 1, 2016. The updated accounting guidance provides companies with alternative methods of adoption. We do not expect the updated accounting guidance to have a material impact on our consolidated financial statements. Debt Issuance Costs In April 2015, the FASB updated the accounting guidance related to the balance sheet presentation of debt issuance costs. The updated accounting guidance requires that debt issuance costs be presented as a direct deduction from the associated debt obligation. We have adopted this guidance as of December 31, 2015 and as a result we have reclassified unamortized debt issuance costs of $153 million as of December 31, 2014 from other noncurrent assets to a reduction of long-term debt on our consolidated balance sheet. As of December 31, 2015, unamortized debt issuance costs included in long-term debt was $176 million. Deferred Income Taxes In November 2015, the FASB updated the accounting guidance related to the balance sheet presentation of deferred taxes. The updated accounting guidance requires that all deferred tax liabilities and assets be classified as noncurrent in a classified balance sheet. The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this update. We have adopted this guidance prospectively as of December 31, 2015. Therefore, prior periods have not been adjusted to reflect this adoption. If we had retrospectively adopted this guidance, $195 million of current deferred tax assets would have been reclassified from current assets to long-term liabilities as of December 31, 2014.
NBCUniversal Media LLC [Member]
Recent Accounting Pronouncements	Note 3: Recent Accounting Pronouncements Revenue Recognition In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue, and by reducing the number of standards to which an entity has to refer. In July 2015, the FASB voted to defer the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. The updated accounting guidance provides companies with alternative methods of adoption. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements and our method of adoption. Consolidations In February 2015, the FASB updated the accounting guidance related to consolidation under the variable interest entity and voting interest entity models. The updated accounting guidance modifies the consolidation guidance for VIEs, limited partnerships and similar legal entities. The updated guidance is effective for us as of January 1, 2016. The updated accounting guidance provides companies with alternative methods of adoption. We do not expect the updated accounting guidance to have a material impact on our consolidated financial statements. Debt Issuance Costs In April 2015, the FASB updated the accounting guidance related to the balance sheet presentation of debt issuance costs. The updated accounting guidance requires that debt issuance costs be presented as a direct deduction from the associated debt obligation. We have adopted this guidance as of December 31, 2015 and as a result we have reclassified unamortized debt issuance costs of $12 million as of December 31, 2014 from other noncurrent assets to a reduction of long-term debt on our consolidated balance sheet. As of December 31, 2015, unamortized debt issuance costs included in long-term debt was $11 million. Deferred Income Taxes In November 2015, the FASB updated the accounting guidance related to the balance sheet presentation of deferred taxes. The updated accounting guidance requires that all deferred tax liabilities and assets be classified as noncurrent in a classified balance sheet. The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this update. We have adopted this guidance prospectively as of December 31, 2015. Therefore, prior periods have not been adjusted to reflect this adoption. The adoption of the updated accounting guidance did not have a material impact on our consolidated balance sheet.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

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-Name Accounting Standards Codification
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+ Details

Earnings Per Share

12 Months Ended

Dec. 31, 2015

Earnings Per Share

Earnings Per Share

Note 4: Earnings Per Share

Computation of Diluted EPS
			2015					2014					2013
Year ended December 31 (in millions, except per share data)			Net Income Attributable to Comcast Corporation	Shares		Per Share Amount		Net Income Attributable to Comcast Corporation	Shares		Per Share Amount		Net Income Attributable to Comcast Corporation	Shares		Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders		$	8,163	2,486	$	3.28	$	8,380	2,583	$	3.24	$	6,816	2,625	$	2.60
Effect of dilutive securities:
	Assumed exercise or issuance of shares relating to stock plans			32					37					40
Diluted EPS attributable to Comcast
	Corporation shareholders	$	8,163	2,518	$	3.24	$	8,380	2,620	$	3.20	$	6,816	2,665	$	2.56

Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Our potentially dilutive securities include potential common shares related to our stock options and our restricted share units (“RSUs”). Diluted EPS excludes the impact of potential common shares related to our stock options in periods in which the combination of the option exercise price and the associated unrecognized compensation expense is greater than the average market price of our common stock.

The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material for 2015, 2014 and 2013.

Significant Transactions

12 Months Ended

Dec. 31, 2015

Significant Transactions

Note 5: Significant Transactions

2015

Universal Studios Japan

On November 13, 2015, NBCUniversal acquired a 51% economic interest in Universal Studios Japan for $1.5 billion. The acquisition was funded through cash on hand and borrowings under our commercial paper program.

Universal Studios Japan is a VIE based on the governance structure and we consolidate Universal Studios Japan as we have the power to direct activities that most significantly impact its economic performance. There are no liquidity arrangements, guarantees, or other financial commitments between us and Universal Studios Japan, and therefore our maximum risk of financial loss is NBCUniversal’s 51% interest. Universal Studios Japan’s results of operations are reported in our Theme Parks segment following the acquisition date.

Preliminary Allocation of Purchase Price

Due to the limited amount of time since the date of acquisition, the assets and liabilities of Universal Studios Japan were recorded at their historical carrying value. We will adjust these amounts to fair value as valuations are completed and we obtain information necessary to complete the analyses, but no later than one year from the acquisition date. The 49% noncontrolling interest in Universal Studios Japan is recorded in the equity section of our consolidated financial statements and has been recorded based on the total value of Universal Studios Japan implied in the transaction. For purposes of this preliminary allocation, the excess of the total value implied in the transaction over the historical carrying value has been recorded as goodwill.

The table below presents the preliminary allocation of the purchase price to the assets and liabilities of Universal Studios Japan.

Preliminary Allocation of Purchase Price
(in millions)
Property and equipment (see Note 8)	$	642
Intangible assets (see Note 9)		57
Working capital		(24)
Debt (see Note 10)		(3,271)
Other noncurrent assets and liabilities		162
Identifiable net assets (liabilities) acquired		(2,434)
Noncontrolling interest		(1,440)
Goodwill (see Note 9)		5,373
Cash consideration transferred	$	1,499

Actual and Unaudited Pro Forma Results

Our consolidated revenue and net income attributable to Comcast Corporation for the year ended December 31, 2015 included $169 million and $18 million, respectively, from the acquisition of Universal Studios Japan.

The following unaudited pro forma information has been presented as if the acquisition occurred on January 1, 2014. This information is based on historical results of operations and is subject to change as valuations are completed and additional analysis is obtained. In addition, the unaudited pro forma accounting adjustments are not necessarily indicative of what our results would have been had we operated Universal Studios Japan since January 1, 2014. No pro forma adjustments have been made for our transaction-related expenses.

Year ended December 31 (in millions except per share amounts)		2015		2014
Revenue	$	75,563	$	69,860
Net income	$	8,640	$	8,758
Net income attributable to Comcast Corporation	$	8,278	$	8,463
Basic earnings per common share attributable to Comcast Corporation shareholders	$	3.33	$	3.28
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	3.29	$	3.23

Time Warner Cable Merger and Related Divestiture Transactions

On April 24, 2015, we and Time Warner Cable Inc. terminated our planned merger, and we terminated our related agreement with Charter Communications, Inc. to spin off, exchange and sell certain cable systems. In connection with these proposed transactions, we incurred incremental transaction-related expenses of $198 million and $237 million in 2015 and 2014, respectively. The transaction-related expenses are reflected primarily in other operating and administrative expenses, with $20 million recorded in depreciation and amortization expenses associated with the write-off of certain capitalized costs in 2015.

2013

NBCUniversal Redemption Transaction

On March 19, 2013, we acquired General Electric Company’s (“GE”) 49% common equity interest in NBCUniversal Holdings that we did not already own for approximately $16.7 billion (the “NBCUniversal redemption transaction”). In addition to the NBCUniversal redemption transaction, NBCUniversal purchased from GE certain properties NBCUniversal occupies at 30 Rockefeller Plaza in New York City and CNBC’s headquarters in Englewood Cliffs, New Jersey for $1.4 billion.

The total consideration for these transactions consisted of $11.4 billion of cash on hand; $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company that we control and consolidate following the close of the NBCUniversal redemption transaction whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through our commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise’s credit facility, which replaced NBCUniversal’s credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise. See Note 20 for additional information on our cross-guarantee structure.

Because we maintained control of NBCUniversal Holdings, the difference between the consideration transferred and the recorded value of GE’s 49% redeemable noncontrolling common equity interest, and the related tax impacts, were recorded to additional paid-in capital.

The NBCUniversal Enterprise preferred stock pays dividends at a fixed rate of 5.25% per annum. The holders have the right to cause NBCUniversal Enterprise to redeem their shares at a price equal to the liquidation preference plus accrued but unpaid dividends for a 30 day period beginning on March 19, 2020 and thereafter on every third anniversary of such date (each such date, a “put date”). Shares of preferred stock can be called for redemption by NBCUniversal Enterprise at a price equal to the liquidation preference plus accrued but unpaid dividends one year following each put date applicable to such shares. Because certain of these redemption provisions are outside of our control, the NBCUniversal Enterprise preferred stock is presented outside of equity under the caption “redeemable noncontrolling interests and redeemable subsidiary preferred stock” in our consolidated balance sheet. Its initial value was based on the liquidation preference of the preferred stock and is adjusted for accrued but unpaid dividends. As of December 31, 2015 and 2014, the fair value of the NBCUniversal Enterprise redeemable subsidiary preferred stock was $758 million and $751 million, respectively. The estimated fair values are based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

NBCUniversal Media LLC [Member]

Significant Transactions

Note 4: Significant Transactions

2015

Universal Studios Japan

On November 13, 2015, we acquired a 51% economic interest in Universal Studios Japan for $1.5 billion. The acquisition was funded through cash on hand and borrowings under our commercial paper program.

Universal Studios Japan is a VIE based on the governance structure and we consolidate Universal Studios Japan as we have the power to direct activities that most significantly impact its economic performance. There are no liquidity arrangements, guarantees, or other financial commitments between us and Universal Studios Japan, and therefore our maximum risk of financial loss is our 51% interest. Universal Studios Japan’s results of operations are reported in our Theme Parks segment following the acquisition date.

Preliminary Allocation of Purchase Price

The table below presents the preliminary allocation of the purchase price to the assets and liabilities of Universal Studios Japan.

Preliminary Allocation of Purchase Price
(in millions)
Property and equipment (see Note 8)	$	642
Intangible assets (see Note 9)		57
Working capital		(24)
Debt (see Note 10)		(3,271)
Other noncurrent assets and liabilities and other		162
Identifiable net assets (liabilities) acquired		(2,434)
Noncontrolling interest		(1,440)
Goodwill (see Note 9)		5,373
Cash consideration transferred	$	1,499

Actual and Unaudited Pro Forma Results

Our consolidated revenue and net income attributable to NBCUniversal for the year ended December 31, 2015 included $169 million and $18 million, respectively, from the acquisition of Universal Studios Japan.

Year ended December 31 (in millions)		2015		2014
Revenue	$	29,514	$	26,513
Net income	$	3,851	$	3,463
Net income attributable to NBCUniversal	$	3,529	$	3,198

2013

Redemption Transaction

On March 19, 2013, Comcast acquired General Electric Company’s (“GE”) 49% common equity interest in NBCUniversal Holdings that it did not already own for approximately $16.7 billion (the “redemption transaction”). In addition to the redemption transaction, we purchased from GE certain properties we occupy at 30 Rockefeller Plaza in New York City and CNBC’s headquarters in Englewood Cliffs, New Jersey for $1.4 billion.

The total consideration for these transactions consisted of $11.4 billion of cash on hand (of which we funded $4.6 billion); $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through Comcast’s commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise’s credit facility, which replaced our credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise.

Following the close of the redemption transaction, Comcast owns 96% of NBCUniversal Holdings’ common units and NBCUniversal Enterprise owns the remaining 4%. NBCUniversal Enterprise is now a consolidated subsidiary of Comcast, but we do not have any ownership interests in NBCUniversal Enterprise. NBCUniversal Enterprise also owns all of NBCUniversal Holdings’ preferred units with a $9.4 billion aggregate liquidation preference. NBCUniversal Holdings is required to make quarterly payments to NBCUniversal Enterprise at an initial rate of 8.25% per annum on the $9.4 billion aggregate liquidation preference of the preferred units. On March 1, 2018, and thereafter on every fifth anniversary of such date, this rate will reset to 7.44% plus the yield on actively traded United States Treasury securities having a 5 year maturity. NBCUniversal Holdings has the right to redeem all of the preferred units during the 30 day period beginning on March 1, 2018, and NBCUniversal Enterprise has the right to cause NBCUniversal Holdings to redeem 15% of its preferred units during the 30 day period beginning on March 19, 2020. The price and units in a redemption initiated by either party will be based on the liquidation preference plus accrued but unpaid dividends and adjusted, in the case of an exercise of NBCUniversal Enterprise’s right, to the extent the equity value of NBCUniversal Holdings is less than the liquidation preference. Our cash flows are, and will continue to be, the primary source of funding for the required payments and for any future redemption of the NBCUniversal Holdings preferred units.

Related Party Transactions

12 Months Ended

Dec. 31, 2015

NBCUniversal Media LLC [Member]

Related Party Transactions

Note 5: Related Party Transactions

In the ordinary course of our business, we enter into transactions with Comcast.

We generate revenue from Comcast primarily from the distribution of our cable network programming and, to a lesser extent, the sale of advertising and our owned programming, and we incur expenses primarily related to advertising and various support services provided by Comcast to us.

In 2013, as part of the Comcast cash management process, we and Comcast entered into revolving credit agreements under which we can borrow up to $3 billion from Comcast and Comcast can borrow up to $3 billion from us. Amounts owed by us to Comcast under the revolving credit agreement, including accrued interest, are presented under the caption “note payable to Comcast” in our consolidated balance sheet. The revolving credit agreements bear interest at floating rates equal to the interest rate under the Comcast and Comcast Cable Communications, LLC revolving credit facility (the “Comcast revolving credit facility”). The interest rate on the Comcast revolving credit facility consists of a base rate plus a borrowing margin that is determined based on Comcast’s credit rating. As of December 31, 2015, the borrowing margin for London Interbank Offered Rate-based borrowings was 1.00%.

In addition, Comcast is the counterparty to one of our contractual obligations. As of both December 31, 2015 and 2014, the carrying value of the liability associated with this contractual obligation was $383 million.

The following tables present transactions with Comcast and its consolidated subsidiaries that are included in our consolidated financial statements.

Consolidated Balance Sheet

December 31 (in millions)		2015		2014
Transactions with Comcast and Consolidated Subsidiaries
	Receivables, net	$	239	$	229
	Accounts payable and accrued expenses related to trade creditors	$	68	$	47
	Accrued expenses and other current liabilities	$	51	$	8
	Note payable to Comcast	$	1,750	$	865
	Other noncurrent liabilities	$	383	$	383

Consolidated Statement of Income

Year ended December 31 (in millions)			2015		2014		2013
Transactions with Comcast and Consolidated Subsidiaries
	Revenue	$	1,349	$	1,315	$	1,262
	Operating costs and expenses	$	(246)	$	(162)	$	(190)
	Other income (expense)	$	(37)	$	(43)	$	-

Distributions to NBCUniversal Holdings

In addition to the transactions presented in the table above, we make distributions to NBCUniversal Holdings on a periodic basis to enable its owners to meet their obligations to pay taxes on taxable income generated by our businesses. We also make quarterly distributions to NBCUniversal Holdings to enable it to make its required quarterly payments to NBCUniversal Enterprise at an initial annual rate of 8.25% on the $9.4 billion aggregate liquidation preference of its preferred units. These distributions are presented under the caption “distributions to member” in our consolidated statement of cash flows. Following the close of the redemption transaction, none of these distributions to NBCUniversal Holdings are attributable to GE.

In connection with the redemption transaction, we also made a distribution of $3.2 billion to NBCUniversal Holdings to fund a portion of the redemption transaction. This distribution is presented separately in our consolidated statement of cash flows.

Transactions with GE

Following the close of the redemption transaction and the subsequent sale of NBCUniversal Enterprise’s preferred stock and senior notes by GE to unaffiliated third parties in March 2013, we no longer consider GE to be a related party.

In February 2013, Comcast closed an agreement with GE, General Electric Capital Corporation (“GECC”) and LIN TV under which, among other things, we purchased a note held by Station Venture Holdings, LLC (“Station Venture”) from GECC for $602 million, which effectively settled a liability of $482 million that had been recorded in the allocation of purchase price associated with Comcast’s acquisition of a controlling interest in NBCUniversal Holdings in 2011 (the “joint venture transaction”). Due to the related party nature of this transaction, the excess of the purchase price of the Station Venture note over the recorded amount of the liability was recorded to member’s capital. Other than the Station Venture transaction and dividend payments to GE that are included in our consolidated statement of changes in equity and our consolidated statement of cash flows, the amounts related to our transactions with GE and its consolidated subsidiaries that occurred prior to the close of the redemption transaction were not material.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References + Details

Film and Television Costs

12 Months Ended

Dec. 31, 2015

Film And Television Costs Disclosure [Text Block]

Note 6: Film and Television Costs

December 31 (in millions)			2015		2014
Film Costs:
	Released, less amortization	$	1,275	$	1,371
	Completed, not released		226		71
	In production and in development		907		1,189
			2,408		2,631
Television Costs:
	Released, less amortization		1,573		1,273
	In production and in development		737		505
			2,310		1,778
Programming rights, less amortization			2,350		2,157
			7,068		6,566
Less: Current portion of programming rights			1,213		839
Film and television costs		$	5,855	$	5,727

Based on our current estimates of the total remaining gross revenue from all sources (“ultimate revenue”), in 2016 we expect to amortize approximately $1.5 billion of film and television costs associated with our original film and television productions that have been released, or completed and not yet released. Through 2018, we expect to amortize approximately 87% of unamortized film and television costs for our released productions, excluding amounts allocated to acquired libraries.

As of December 31, 2015, acquired film and television libraries, which are included within the “released, less amortization” captions in the table above, had remaining unamortized costs of $449 million. These costs are generally amortized over a period not to exceed 20 years, and approximately 49% of these costs are expected to be amortized through 2018.

Capitalization of Film and Television Costs

We capitalize film and television production costs, including direct costs, production overhead, print costs, development costs and interest. We amortize capitalized film and television production costs, including acquired libraries, and accrue costs associated with participation and residual payments to programming and production expenses. We generally record the amortization and the accrued costs using the individual film forecast computation method, which amortizes such costs in the same ratio as the associated ultimate revenue. Estimates of ultimate revenue and total costs are based on anticipated release patterns, public acceptance and historical results for similar productions. Unamortized film and television costs, including acquired film and television libraries, are stated at the lower of unamortized cost or fair value. We do not capitalize costs related to the distribution of a film in movie theaters or the licensing or sale of a film or television production, which are primarily costs associated with the marketing and distribution of film and television programming.

In determining the estimated lives and method of amortization of acquired film and television libraries, we generally use the method and the life that most closely follow the undiscounted cash flows over the estimated life of the asset.

Upon the occurrence of an event or a change in circumstance that was known or knowable as of the balance sheet date and that indicates the fair value of a film is less than its unamortized costs, we determine the fair value of the film and record an impairment charge for the amount by which the unamortized capitalized costs exceed the film’s fair value.

We enter into cofinancing arrangements with third parties to jointly finance or distribute certain of our film productions. Cofinancing arrangements can take various forms, but in most cases involve the grant of an economic interest in a film to an investor. The number of investors and the terms of these arrangements can vary, although investors generally assume full risk for the portion of the film acquired in these arrangements. We account for the proceeds received from a third-party investor under these arrangements as a reduction to our capitalized film costs. In these arrangements, the investor owns an undivided copyright interest in the film, and therefore in each period we record either a charge or a benefit to programming and production expenses to reflect the estimate of the third-party investor’s interest in the profit or loss of the film. The estimate of the third-party investor’s interest in the profit or loss of a film is determined using the ratio of actual revenue earned to date to the ultimate revenue expected to be recognized over the film’s useful life.

We capitalize the costs of programming content that we license but do not own, including rights to multiyear, live-event sports programming, at the earlier of when payments are made for the programming or when the license period begins and the content is available for use. We amortize capitalized programming costs as the associated programs are broadcast. We amortize multiyear, live-event sports programming rights using the ratio of the current period revenue to the estimated ultimate revenue or under the terms of the contract.

Acquired programming costs are recorded at the lower of unamortized cost or net realizable value on a program by program, package, channel or daypart basis. A daypart is an aggregation of programs broadcast during a particular time of day or programs of a similar type. Programming acquired by our Cable Networks segment is primarily tested on a channel basis for impairment, whereas programming acquired by our Broadcast Television segment is tested on a daypart basis. If we determine that the estimates of future cash flows are insufficient or if there is no plan to broadcast certain programming, we recognize an impairment charge to programming and production expenses.

NBCUniversal Media LLC [Member]

Film And Television Costs Disclosure [Text Block]

Note 6: Film and Television Costs

December 31 (in millions)			2015		2014
Film Costs:
	Released, less amortization	$	1,275	$	1,371
	Completed, not released		226		71
	In production and in development		907		1,189
			2,408		2,631
Television Costs:
	Released, less amortization		1,573		1,273
	In production and in development		737		505
			2,310		1,778
Programming rights, less amortization			2,329		2,130
			7,047		6,539
Less: Current portion of programming rights			1,200		825
Film and television costs		$	5,847	$	5,714

Capitalization of Film and Television Costs

Investments

12 Months Ended

Dec. 31, 2015

Investments

Note 7: Investments

December 31 (in millions)			2015		2014
Fair Value Method		$	167	$	662
Equity Method:
	The Weather Channel		-		335
	Hulu		184		167
	Other		494		517
			678		1,019
Cost Method:
	AirTouch		1,583		1,568
	Other		902		488
			2,485		2,056
Total investments			3,330		3,737
Less: Current investments			106		602
Noncurrent investments		$	3,224	$	3,135

Investment Income (Loss), Net
Year ended December 31 (in millions)			2015		2014		2013
Gains on sales and exchanges of investments, net		$	12	$	192	$	484
Investment impairment losses			(59)		(50)		(29)
Unrealized gains on securities underlying prepaid forward sale agreements			42		66		1,601
Mark to market adjustments on derivative component of prepaid forward sale
	agreements and indexed debt instruments		(42)		(56)		(1,604)
Interest and dividend income			115		116		111
Other, net			13		28		13
Investment income (loss), net		$	81	$	296	$	576

Fair Value Method

We classify publicly traded investments that are not accounted for under the equity method as available-for-sale (“AFS”) or trading securities and record them at fair value. For AFS securities, we record unrealized gains or losses resulting from changes in fair value between measurement dates as a component of other comprehensive income (loss), except when we consider declines in value to be other than temporary. For trading securities, we record unrealized gains or losses resulting from changes in fair value between measurement dates as a component of investment income (loss), net. We recognize realized gains and losses associated with our fair value method investments using the specific identification method. We classify the cash flows related to purchases of and proceeds from the sale of trading securities based on the nature of the securities and the purpose for which they were acquired.

Prepaid Forward Sale Agreements
December 31 (in millions)			2014
Assets:
	Fair value equity securities held as collateral	$	523

Liabilities:
	Obligations under prepaid forward sale agreements	$	119
	Derivative component of prepaid forward sale agreements		356
Total liabilities		$	475

During 2015, we settled our remaining obligations under our prepaid forward sale agreements by delivering equity securities. As of December 31, 2015, we have no remaining liabilities related to these obligations.

As of December 31, 2014, the majority of our fair value method investments were equity securities that we accounted for as trading securities and were held as collateral related to our obligations under prepaid forward sale agreements. As of December 31, 2014, the carrying value of our remaining prepaid forward sale obligations approximated their fair value. The estimated fair values were based on Level 2 inputs that use pricing models whose inputs were derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

The derivative component of the prepaid forward sale agreements were equity derivative financial instruments embedded in the related contracts, which we used to manage our exposure to and benefits from price fluctuations in the common stock of the related investments. For these derivative financial instruments, we separated the derivative component from the host contract and recorded in each period the change in its value to investment income (loss), net.

Liberty Media

In October 2013, Liberty Media Corporation (“Liberty Media”) redeemed 6.3 million shares of Liberty Media Series A common stock (“Liberty stock”) that had been held by us as collateral under certain of our prepaid forward sale agreements in exchange for all of the equity of a subsidiary of Liberty Media. The fair value of the Liberty stock at the date of the close of the transaction was $937 million. The assets of the subsidiary of Liberty Media included cash of $417 million, Liberty Media’s interests in one of NBCUniversal’s contractual obligations and a wholly owned operating subsidiary, Leisure Arts, Inc. Following the close of this transaction, we now consolidate the subsidiary transferred to us, and the liability associated with NBCUniversal’s contractual obligation is eliminated in consolidation.

Clearwire LLC

In July 2013, in connection with Sprint Communications, Inc.’s (“Sprint”) acquisition of Clearwire Corporation (“Clearwire”), Sprint acquired our investment of 89 million Class A shares of Clearwire for $443 million. As a result, we recognized a pretax gain of $443 million in our consolidated statement of income, which represented the recognition of cumulative unrealized gains previously recorded in accumulated other comprehensive income (loss).

Equity Method

We use the equity method to account for investments in which we have the ability to exercise significant influence over the investee’s operating and financial policies or where we hold significant partnership or LLC interests. Equity method investments are recorded at cost and are adjusted to recognize (1) our proportionate share of the investee’s net income or loss after the date of investment, (2) amortization of the recorded investment that exceeds our share of the book value of the investee’s net assets, (3) additional contributions made and dividends received, and (4) impairments resulting from other-than-temporary declines in fair value. For some investments, we record our share of the investee’s net income or loss one quarter in arrears due to the timing of our receipt of such information. Gains or losses on the sale of equity method investments are recorded to other income (expense), net. If an equity method investee were to issue additional securities that would change our proportionate share of the entity, we would recognize the change, if any, as a gain or loss in our consolidated statement of income.

The Weather Channel

In June and December 2015, TWCC Holding Corp. (“The Weather Channel”) recorded impairment charges related to goodwill. During 2015, we recorded expenses of $333 million that represent NBCUniversal’s proportionate share of these impairment charges, in equity in net income (losses) of investees, net in our consolidated statement of income. On January 29, 2016, IBM acquired The Weather Channel’s product and technology businesses. The Weather Channel cable network was not acquired and, following the close of the transaction, licenses weather forecast data and analytics from IBM.

In June 2013, we received a distribution from The Weather Channel of $152 million, of which $128 million was recorded as a return of our investment in The Weather Channel and included in other investing activities in our consolidated statement of cash flows.

Hulu

In July 2013, we entered into an agreement to provide capital contributions totaling $247 million to Hulu, LLC (“Hulu”), which we had previously accounted for as a cost method investment. This represented an agreement to provide our first capital contribution to Hulu since we acquired our interest in it as part of our acquisition of a controlling interest in NBCUniversal Holdings in 2011 (the “NBCUniversal transaction”); therefore, we began to apply the equity method of accounting for this investment. The change in the method of accounting for this investment required us to recognize our proportionate share of Hulu’s accumulated losses from the date of the NBCUniversal transaction through July 2013.

In 2015, 2014 and 2013, we recognized our proportionate share of losses of $106 million, $20 million and $142 million, respectively, related to our investment in Hulu.

Cost Method

We use the cost method to account for investments not accounted for under the fair value method or the equity method.

Vox and BuzzFeed

In September 2015, NBCUniversal made an additional investment in Vox Media, Inc. (“Vox Media”) and acquired an interest in BuzzFeed, Inc. (“BuzzFeed”) for $200 million each in cash. Vox Media is a digital media company comprised of eight distinct brands. BuzzFeed is a global media company that produces and distributes original news, entertainment and videos.

AirTouch

We hold two series of preferred stock of Verizon Americas, Inc., formerly known as AirTouch Communications, Inc. (“AirTouch”), a subsidiary of Verizon Communications Inc., which are redeemable in April 2020. As of both December 31, 2015 and 2014, the estimated fair value of the AirTouch preferred stock was $1.7 billion.

The dividend and redemption activity of the AirTouch preferred stock determines the dividend and redemption payments associated with substantially all of the preferred shares issued by one of our consolidated subsidiaries, which is a VIE. The subsidiary has three series of preferred stock outstanding with an aggregate redemption value of $1.75 billion. Substantially all of the AirTouch preferred stock is redeemable in April 2020 at a redemption value of $1.65 billion. As of both December 31, 2015 and 2014, the two series of redeemable subsidiary preferred shares were recorded at $1.6 billion, and those amounts are included in other noncurrent liabilities. As of both December 31, 2015 and 2014, the liability related to the redeemable subsidiary preferred shares had an aggregate estimated fair value of $1.7 billion. The estimated fair values of the AirTouch preferred stock and redeemable subsidiary preferred shares are based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument. The one nonredeemable series of subsidiary preferred shares was recorded at $100 million as of both December 31, 2015 and 2014, and those amounts are included in noncontrolling interests in our consolidated balance sheet. The carrying amount of the nonredeemable subsidiary preferred stock approximates its fair value.

Impairment Testing of Investments

We review our investment portfolio each reporting period to determine whether there are identified events or circumstances that would indicate there is a decline in the fair value that would be considered other than temporary. For our nonpublic investments, if there are no identified events or circumstances that would have a significant adverse effect on the fair value of the investment, then the fair value is not estimated. If an investment is deemed to have experienced an other-than-temporary decline below its cost basis, we reduce the carrying amount of the investment to its quoted or estimated fair value, as applicable, and establish a new cost basis for the investment. For our AFS and cost method investments, we record the impairment to investment income (loss), net. For our equity method investments, we record the impairment to other income (expense), net. In 2013, we recorded $249 million of impairment charges to our equity method investments, which primarily related to a regional sports cable network based in Houston, Texas.

NBCUniversal Media LLC [Member]

Investments

Note 7: Investments

December 31 (in millions)			2015		2014
Fair Value Method		$	10	$	10
Equity Method:
	The Weather Channel		-		335
	Hulu		184		167
	Other		313		338
			497		840
Cost Method			458		32
Total investments		$	965	$	882

Equity Method

We use the equity method to account for investments in which we have the ability to exercise significant influence over the investee’s operating and financial policies or where we hold significant partnership or LLC interests. Equity method investments are recorded at cost and are adjusted to recognize (1) our proportionate share of the investee’s net income or loss after the date of investment, (2) amortization of the recorded investment that exceeds our share of the book value of the investee’s net assets, (3) additional contributions made and dividends received, and (4) impairments resulting from other-than-temporary declines in fair value. Gains or losses on the sale of equity method investments are recorded to other income (expense), net. If an equity method investee were to issue additional securities that would change our proportionate share of the entity, we would recognize the change, if any, as a gain or loss in our consolidated statement of income.

The Weather Channel

In June and December 2015, TWCC Holding Corp. (“The Weather Channel”) recorded impairment charges related to goodwill. During 2015, we recorded expenses of $333 million that represent our proportionate share of these impairment charges in equity in net income (losses) of investees, net in our consolidated statement of income. On January 29, 2016, IBM acquired The Weather Channel’s product and technology businesses. The Weather Channel cable network was not acquired and, following the close of the transaction, licenses weather forecast data and analytics from IBM.

Hulu

In July 2013, we entered into an agreement to provide capital contributions totaling $247 million to Hulu, LLC (“Hulu”), which we had previously accounted for as a cost method investment. This represented an agreement to provide our first capital contribution to Hulu since Comcast acquired its interest in Hulu as part of the joint venture transaction; therefore, we began to apply the equity method of accounting for this investment. The change in the method of accounting for this investment required us to recognize our proportionate share of Hulu’s accumulated losses from the date of the joint venture transaction through July 2013.

In 2015, 2014 and 2013, we recognized our proportionate share of losses of $106 million, $20 million and $142 million, respectively, related to our investment in Hulu.

Summarized Financial Information

The tables below present the summarized combined financial information of our equity method investments.

December 31 (in millions)				2015		2014
Current assets			$	1,904	$	1,529
Noncurrent assets			$	3,584	$	4,572
Current liabilities			$	1,225	$	1,235
Noncurrent liabilities			$	4,879	$	4,162

Year ended December 31 (in millions)		2015		2014		2013
Revenue	$	3,944	$	3,756	$	3,360
Operating income (loss)	$	(1,609)	$	483	$	645
Net income (loss)	$	(1,820)	$	243	$	188

Cost Method

We use the cost method to account for investments not accounted for under the fair value method or the equity method.

In September 2015, we made an additional investment in Vox Media, Inc. (“Vox Media”) and acquired an interest in BuzzFeed, Inc. (“BuzzFeed”) for $200 million each in cash. Vox Media is a digital media company comprised of eight distinct brands. BuzzFeed is a global media company that produces and distributes original news, entertainment and videos.

Impairment Testing of Investments

We review our investment portfolio each reporting period to determine whether there are identified events or circumstances that would indicate there is a decline in the fair value that would be considered other than temporary. For our nonpublic investments, if there are no identified events or circumstances that would have a significant adverse effect on the fair value of the investment, then the fair value is not estimated. If an investment is deemed to have experienced an other-than-temporary decline below its cost basis, we reduce the carrying amount of the investment to its quoted or estimated fair value, as applicable, and establish a new cost basis for the investment. For our available-for-sale securities and cost method investments, we record the impairment to investment income (loss), net. For our equity method investments, we record the impairment to other income (expense), net. In 2013, we recorded $249 million of impairment charges to our equity method investments, which primarily related to a regional sports cable network based in Houston, Texas.

Property and Equipment

12 Months Ended

Dec. 31, 2015

Property and Equipment

Note 8: Property and Equipment

December 31 (in millions)	Weighted-Average Original Useful LifeAs of December 31, 2015			2015		2014
Cable distribution system	11	years	$	32,586	$	31,655
Customer premise equipment	6	years		28,559		27,086
Other equipment	7	years		8,539		7,860
Buildings and leasehold improvements	25	years		10,829		8,650
Land		N/A		1,252		1,112
Property and equipment, at cost				81,765		76,363
Less: Accumulated depreciation				48,100		45,410
Property and equipment, net			$	33,665	$	30,953

Property and equipment are stated at cost. We capitalize improvements that extend asset lives and expense repairs and maintenance costs as incurred. We record depreciation using the straight-line method over the asset’s estimated useful life. For assets that are sold or retired, we remove the applicable cost and accumulated depreciation and, unless the gain or loss on disposition is presented separately, we recognize it as a component of depreciation expense.

In accordance with accounting guidance related to cable television companies, we capitalize the costs associated with the construction of and improvements to our cable transmission and distribution facilities, costs associated with acquiring and deploying new customer premise equipment, and costs associated with installation of our services. Costs capitalized include all direct costs for labor and materials, as well as various indirect costs. All costs incurred in connection with subsequent disconnects and reconnects are expensed as they are incurred.

We evaluate the recoverability of our property and equipment whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of depreciation expense.

Acquisitions of Real Estate Properties

Real estate acquisitions in 2013 included NBCUniversal’s purchase from GE of certain properties NBCUniversal occupies at 30 Rockefeller Plaza in New York City and CNBC’s headquarters in Englewood Cliffs, New Jersey. Other purchases in 2013 included NBCUniversal’s acquisition of a business whose primary asset is a property located at 10 Universal City Plaza, which is adjacent to our Universal theme park in Hollywood, California, and our acquisition of an 80% interest in a business whose primary asset is our corporate headquarters in Philadelphia, Pennsylvania. The purchase price of these acquisitions is included in the caption “acquisitions and construction of real estate properties” in our consolidated statement of cash flows.

NBCUniversal Media LLC [Member]

Property and Equipment

Note 8: Property and Equipment

December 31 (in millions)	Weighted-Average Original Useful Lifeas of December 31, 2015			2015		2014
Buildings and leasehold improvements	27	years	$	6,543	$	5,780
Furniture, fixtures and equipment	9	years		3,457		2,930
Construction in process		N/A		1,339		775
Land		N/A		961		820
Property and equipment, at cost				12,300		10,305
Less: Accumulated depreciation				2,779		2,167
Property and equipment, net			$	9,521	$	8,138

Acquisitions of Real Estate Properties

Real estate acquisitions in 2013 included our purchase from GE of certain properties we occupy at 30 Rockefeller Plaza in New York City and CNBC’s headquarters in Englewood Cliffs, New Jersey. Other purchases in 2013 included our acquisition of a business whose primary asset is a property located at 10 Universal City Plaza, which is adjacent to our Universal theme park in Hollywood, California. The purchase price of these acquisitions is included in the caption “acquisitions of real estate properties” in our consolidated statement of cash flows.

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets

Note 9: Goodwill and Intangible Assets

Goodwill
			NBCUniversal
(in millions)		Cable Communications		Cable Networks		Broadcast Television		Filmed Entertainment		Theme Parks		Corporate and Other		Total
Balance, December 31, 2013	$	12,206	$	13,130	$	769	$	1	$	982	$	10	$	27,098
Acquisitions		11		20		-		15		-		181		227
Adjustments^(a)		-		(202)		(2)		195		-		-		(9)
Balance, December 31, 2014		12,217		12,948		767		211		982		191		27,316
Acquisitions^(b)		173		17		39		58		5,373		1		5,661
Adjustments^(a)		(1)		(18)		-		(2)		(11)		-		(32)
Balance, December 31, 2015	$	12,389	$	12,947	$	806	$	267	$	6,344	$	192	$	32,945

(a) Adjustments to goodwill in 2015 and 2014 included foreign currency translation. Adjustments to goodwill in 2014 included the reclassification of Fandango, our movie ticketing and entertainment business, from our Cable Networks segment to our Filmed Entertainment segment.

(b) Acquisitions in 2015 in our Theme Parks segment related to the Universal Studios Japan transaction (see Note 5 for additional information).

We assess the recoverability of our goodwill annually, or more frequently whenever events or substantive changes in circumstances indicate that the carrying amount of a reporting unit may exceed its fair value. We test goodwill for impairment at the reporting unit level. To determine our reporting units, we evaluate the components one level below the segment level and we aggregate the components if they have similar economic characteristics. As a result of this assessment, our reporting units are the same as our five reportable segments. We evaluate the determination of our reporting units used to test for impairment periodically or whenever events or substantive changes in circumstances occur. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. The quantitative assessment considers if the carrying amount of a reporting unit exceeds its fair value, in which case an impairment charge is recorded to the extent the carrying amount of the reporting unit’s goodwill exceeds its implied fair value. Unless presented separately, the impairment charge is included as a component of amortization expense.

Intangible Assets
					2015				2014
December 31 (in millions)		Weighted-Average Original Useful Life as of December 31, 2015			Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-Lived Intangible Assets:
	Franchise rights		N/A	$	59,364			$	59,364
	Trade names		N/A		2,857				3,083
	FCC licenses		N/A		651				651
Finite-Lived Intangible Assets:
	Customer relationships	19	years		13,396	$	(4,442)		15,129	$	(5,495)
	Software	4	years		6,008		(3,429)		5,040		(2,832)
	Cable franchise renewal costs and contractual operating rights	9	years		1,499		(849)		1,418		(792)
	Patents and other technology rights	7	years		409		(350)		373		(330)
	Other agreements and rights	18	years		1,994		(798)		1,456		(721)
Total				$	86,178	$	(9,868)	$	86,514	$	(10,170)

Indefinite-Lived Intangible Assets

Indefinite-lived intangible assets consist primarily of our cable franchise rights, as well as trade names and FCC licenses. Our cable franchise rights represent the values we attributed to agreements with state and local authorities that allow access to homes and businesses in cable service areas acquired in business combinations. We do not amortize our cable franchise rights because we have determined that they meet the definition of indefinite-lived intangible assets since there are no legal, regulatory, contractual, competitive, economic or other factors which limit the period over which these rights will contribute to our cash flows. We reassess this determination periodically or whenever events or substantive changes in circumstances occur. Costs we incur in negotiating and renewing cable franchise agreements are included in other intangible assets and are generally amortized on a straight-line basis over the term of the franchise agreement.

We assess the recoverability of our cable franchise rights and other indefinite-lived intangible assets annually, or more frequently whenever events or substantive changes in circumstances indicate that the assets might be impaired. Our three Cable Communications divisions represent the unit of account we use to test for impairment for our cable franchise rights. We evaluate the unit of account used to test for impairment of our cable franchise rights and other indefinite-lived intangible assets periodically or whenever events or substantive changes in circumstances occur to ensure impairment testing is performed at an appropriate level. The assessment of recoverability may first consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. When performing a quantitative assessment, we estimate the fair value of our cable franchise rights and other indefinite-lived intangible assets primarily based on a discounted cash flow analysis that involves significant judgment. When analyzing the fair values indicated under the discounted cash flow models, we also consider multiples of operating income before depreciation and amortization generated by the underlying assets, current market transactions, and profitability information. If the fair value of our cable franchise rights or other indefinite-lived intangible assets were less than the carrying amount, we would recognize an impairment charge for the difference between the estimated fair value and the carrying value of the assets. Unless presented separately, the impairment charge is included as a component of amortization expense. We did not recognize any material impairment charges in any of the periods presented.

Finite-Lived Intangible Assets

Estimated Amortization Expense of Finite-Lived Intangible Assets
(in millions)
2016	$	1,785
2017	$	1,612
2018	$	1,365
2019	$	1,039
2020	$	902

Finite-lived intangible assets are subject to amortization and consist primarily of customer relationships acquired in business combinations, software, cable franchise renewal costs, contractual operating rights and intellectual property rights. Our finite-lived intangible assets are amortized primarily on a straight-line basis over their estimated useful life or the term of the associated agreement.

We capitalize direct development costs associated with internal-use software, including external direct costs of material and services and payroll costs for employees devoting time to these software projects. We also capitalize costs associated with the purchase of software licenses. We include these costs in other intangible assets and generally amortize them on a straight-line basis over a period not to exceed five years. We expense maintenance and training costs, as well as costs incurred during the preliminary stage of a project, as they are incurred. We capitalize initial operating system software costs and amortize them over the life of the associated hardware.

We evaluate the recoverability of our finite-lived intangible assets whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of amortization expense.

NBCUniversal Media LLC [Member]

Goodwill and Intangible Assets

Note 9: Goodwill and Intangible Assets

Goodwill
(in millions)		Cable Networks		Broadcast Television		Filmed Entertainment		Theme Parks		Total
Balance, December 31, 2013	$	13,130	$	769	$	1	$	982	$	14,882
Acquisitions		20		-		15		-		35
Adjustments^(a)		(202)		(2)		195		-		(9)
Balance, December 31, 2014		12,948		767		211		982		14,908
Acquisitions^(b)		17		39		58		5,373		5,487
Adjustments^(a)		(18)		-		(2)		(11)		(31)
Balance, December 31, 2015	$	12,947	$	806	$	267	$	6,344	$	20,364

(b) Acquisitions in 2015 in our Theme Parks segment related to the Universal Studios Japan transaction (see Note 4 for additional information).

We assess the recoverability of our goodwill annually, or more frequently whenever events or substantive changes in circumstances indicate that the carrying amount of a reporting unit may exceed its fair value. We test goodwill for impairment at the reporting unit level. To determine our reporting units, we evaluate the components one level below the segment level and we aggregate the components if they have similar economic characteristics. As a result of this assessment, our reporting units are the same as our four reportable segments. We evaluate the determination of our reporting units used to test for impairment periodically or whenever events or substantive changes in circumstances occur. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. The quantitative assessment considers if the carrying amount of a reporting unit exceeds its fair value, in which case an impairment charge is recorded to the extent the carrying amount of the reporting unit’s goodwill exceeds its implied fair value. Unless presented separately, the impairment charge is included as a component of amortization expense.

Intangible Assets
					2015				2014
December 31 (in millions)		Weighted-Average Original Useful Life as of December 31, 2015			Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Finite-Lived Intangible Assets:
	Customer relationships	19	years	$	13,107	$	(4,291)	$	13,093	$	(3,636)
	Software	5	years		849		(431)		657		(329)
	Other	19	years		1,996		(932)		1,556		(864)
Indefinite-Lived Intangible Assets:
	Trade names	N/A			2,857				3,059
	FCC licenses	N/A			651				651
Total				$	19,460	$	(5,654)	$	19,016	$	(4,829)

Indefinite-Lived Intangible Assets

Indefinite-lived intangible assets consist of trade names and FCC licenses. We assess the recoverability of our indefinite-lived intangible assets annually, or more frequently whenever events or substantive changes in circumstances indicate that the assets might be impaired. We evaluate the unit of account used to test for impairment of our indefinite-lived intangible assets periodically or whenever events or substantive changes in circumstances occur to ensure impairment testing is performed at an appropriate level. The assessment of recoverability may first consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. When performing a quantitative assessment, we estimate the fair value of our indefinite-lived intangible assets primarily based on a discounted cash flow analysis that involves significant judgment. When analyzing the fair values indicated under the discounted cash flow models, we also consider multiples of operating income before depreciation and amortization generated by the underlying assets, current market transactions, and profitability information. If the fair value of our indefinite-lived intangible assets were less than the carrying amount, we would recognize an impairment charge for the difference between the estimated fair value and the carrying value of the assets. Unless presented separately, the impairment charge is included as a component of amortization expense. We did not recognize any material impairment charges in any of the periods presented.

Finite-Lived Intangible Assets

Estimated Amortization Expense of Finite-Lived Intangible Assets
(in millions)
2016	$	812
2017	$	789
2018	$	776
2019	$	777
2020	$	781

Finite-lived intangible assets are subject to amortization and consist primarily of customer relationships acquired in business combinations, intellectual property rights and software. Our finite-lived intangible assets are amortized primarily on a straight-line basis over their estimated useful life or the term of the associated agreement.

We capitalize direct development costs associated with internal-use software, including external direct costs of material and services and payroll costs for employees devoting time to these software projects. We also capitalize costs associated with the purchase of software licenses. We include these costs in intangible assets and generally amortize them on a straight-line basis over a period not to exceed five years. We expense maintenance and training costs, as well as costs incurred during the preliminary stage of a project, as they are incurred. We capitalize initial operating system software costs and amortize them over the life of the associated hardware.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Long-Term Debt

12 Months Ended

Dec. 31, 2015

Long-Term Debt

Note 10: Long-Term Debt

Long-Term Debt Outstanding
December 31 (in millions)	Weighted-Average Interest Rate as of December 31, 2015			2015		2014
Commercial paper	0.62	%	$	975	$	845
Revolving bank credit facilities	—	%		-		-
Term loans	2.74	%		3,259		-
Senior notes with maturities of 5 years or less, at face value	4.40	%		14,300		15,223
Senior notes with maturities between 5 and 10 years, at face value	4.24	%		9,630		10,530
Senior notes with maturities greater than 10 years, at face value^(a)	5.63	%		23,925		20,989
Other, including capital lease obligations	—			794		689
Debt issuance costs, premiums, discounts and fair value
adjustments for hedged positions, net	—			(262)		(195)
Total debt	4.70	%^(b)		52,621		48,081
Less: Current portion				3,627		4,217
Long-term debt			$	48,994	$	43,864
(a) The December 31, 2015 and 2014 amounts include £625 million of 5.50% notes due 2029, which translated to $921 million and $974 million, respectively, using the exchange rates as of these dates.
(b) Includes the effects of our derivative financial instruments.

As of December 31, 2015 and 2014, our debt had an estimated fair value of $58.0 billion and $55.3 billion, respectively. The estimated fair value of our publicly traded debt is primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices is based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities. See Note 20 for additional information on our cross-guarantee structure.

Debt Principal Maturities
(in millions)	Weighted-Average Interest Rate as of December 31, 2015
2016	2.79	%	$	3,627
2017	6.75	%	$	2,695
2018	4.11	%	$	4,194
2019	3.14	%	$	2,445
2020	4.09	%	$	6,076
Thereafter	5.23	%	$	33,846

2015 Debt Borrowings
Year ended December 31, 2015 (in millions)
Comcast 4.60% senior notes due 2045	$	1,700
Comcast 3.375% senior notes due 2025		1,500
Comcast 4.60% senior notes due 2046		1,490
Comcast 4.40% senior notes due 2035		800
Total	$	5,490

2015 Debt Redemptions and Repayments
Year ended December 31, 2015 (in millions)
NBCUniversal 3.65% senior notes due 2015	$	1,000
Comcast 5.90% senior notes due 2016^(a)		1,000
Comcast 6.50% senior notes due 2015		900
Comcast 5.85% senior notes due 2015^(a)		750
Comcast 8.75% senior notes due 2015		673
Other		55
Total	$	4,378
(a) The early redemption of these senior notes resulted in $47 million of additional interest expense in 2015.

Debt Instruments

Revolving Credit Facilities

As of December 31, 2015, Comcast and Comcast Cable Communications, LLC had a $6.25 billion revolving credit facility due June 2017 with a syndicate of banks (“Comcast revolving credit facility”). The interest rate on this facility consists of a base rate plus a borrowing margin that is determined based on our credit rating. As of December 31, 2015, the borrowing margin for London Interbank Offered Rate (“LIBOR”) based borrowings was 1.00%. This revolving credit facility requires that we maintain certain financial ratios based on our debt and our operating income before depreciation and amortization, as defined in the credit facility. We were in compliance with all financial covenants for all periods presented.

As of December 31, 2015, NBCUniversal Enterprise had a $1.35 billion revolving credit facility due March 2018 with a syndicate of banks (“NBCUniversal Enterprise revolving credit facility”). The interest rate on this facility consists of a base rate plus a borrowing margin that is determined based on our credit rating. As of December 31, 2015, the borrowing margin for LIBOR-based borrowings was 1.00%.

As of December 31, 2015, amounts available under our consolidated credit facilities, net of amounts outstanding under our commercial paper programs and outstanding letters of credit, totaled $6.4 billion, which included $775 million available under the NBCUniversal Enterprise revolving credit facility.

Term Loans

As a result of the Universal Studios Japan transaction, we consolidated ¥400 billion of term loans having a final maturity of November 2020. In accordance with acquisition accounting, these debt securities were recorded at fair value as of the acquisition date. These term loans contain financial and operating covenants and are secured by the assets of Universal Studios Japan and the equity interests of the investors. We do not guarantee these term loans and they are otherwise nonrecourse to us.

Commercial Paper Programs

Our commercial paper programs provide a lower-cost source of borrowing to fund our short-term working capital requirements. The maximum borrowing capacity under the Comcast commercial paper program is $6.25 billion and it is supported by the Comcast revolving credit facility. The maximum borrowing capacity under the NBCUniversal Enterprise commercial paper program is $1.35 billion and it is supported by the NBCUniversal Enterprise revolving credit facility.

Letters of Credit

As of December 31, 2015, we and certain of our subsidiaries had unused irrevocable standby letters of credit totaling $464 million to cover potential fundings under various agreements.

NBCUniversal Media LLC [Member]

Long-Term Debt

Note 10: Long-Term Debt

Long-Term Debt Outstanding
December 31 (in millions)	Weighted-Average Interest Rate as of December 31, 2015		2015			2014
Term loans	2.74	%	$	3,259	$	-
Senior notes with maturities of 5 years or less, at face value	4.39	%		3,000		2,000
Senior notes with maturities between 5 and 10 years, at face value	3.88	%		3,000		5,000
Senior notes with maturities greater than 10 years, at face value	5.62	%		3,200		3,200
Other, including capital lease obligations	—			47		44
Debt issuance costs, premiums, discounts and fair value
adjustments for hedged positions, net	—			(12)		(7)
Total debt	4.12	%^(a)		12,494		10,237
Less: Current portion				1,163		1,023
Long-term debt			$	11,331	$	9,214
(a) Includes the effects of our derivative financial instruments.

As of December 31, 2015 and 2014, our debt, excluding the note payable to Comcast, had an estimated fair value of $13.4 billion and $11.5 billion, respectively. The estimated fair value of our publicly traded debt is primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices is based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.

Debt Principal Maturities
(in millions)	Weighted-Average Interest Rate as of December 31, 2015
2016	2.87	%	$	1,163
2017	3.45	%	$	120
2018	2.79	%	$	127
2019	3.05	%	$	226
2020	3.77	%	$	4,657
Thereafter	4.78	%	$	6,213

Term Loans

Debt Repayments

In April 2015, we repaid at maturity $1 billion aggregate principal amount of 3.65% senior notes due 2015.

Cross-Guarantee Structure

We, Comcast and a 100% owned cable holding company subsidiary of Comcast (“CCCL Parent”) fully and unconditionally guarantee each other’s debt securities. As of December 31, 2015, we guaranteed $35.1 billion of outstanding debt securities of Comcast and CCCL Parent. We also fully and unconditionally guarantee the Comcast revolving credit facility, of which no amounts were outstanding as of December 31, 2015.

We do not, however, guarantee the obligations of NBCUniversal Enterprise with respect to its $4 billion aggregate principal amount of senior notes, $1.35 billion revolving credit facility and associated commercial paper program, or $725 million liquidation preference of Series A cumulative preferred stock.

Fair Value Measurements

12 Months Ended

Dec. 31, 2015

Fair Value Measurements

Note 11: Fair Value Measurements

Level 1: Consists of financial instruments whose values are based on quoted market prices for identical financial instruments in an active market.
Level 2: Consists of financial instruments that are valued using models or other valuation methodologies. These models use inputs that are observable either directly or indirectly. Level 2 inputs include (1) quoted prices for similar assets or liabilities in active markets, (2) quoted prices for identical or similar assets or liabilities in markets that are not active, (3) pricing models whose inputs are observable for substantially the full term of the financial instrument and (4) pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.
Level 3: Consists of financial instruments whose values are determined using pricing models that use significant inputs that are primarily unobservable, discounted cash flow methodologies or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of financial instruments and their classification within the fair value hierarchy. Financial instruments are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented. Our financial instruments that are accounted for at fair value on a recurring basis are presented in the table below.

Recurring Fair Value Measurements
		Fair Value as of December 31, 2015								Fair Value as of December 31, 2014
(in millions)		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Trading securities	$	22	$	-	$	-	$	22	$	523	$	-	$	-	$	523
Available-for-sale securities		-		123		10		133		1		121		10		132
Interest rate swap agreements		-		53		-		53		-		84		-		84
Other		-		5		12		17		-		64		7		71
Total	$	22	$	181	$	22	$	225	$	524	$	269	$	17	$	810
Liabilities
Derivative component of prepaid forward sale agreements and indexed debt instruments	$	-	$	5	$	-	$	5	$	-	$	361	$	-	$	361
Contractual obligation		-		-		-		-		-		-		883		883
Contingent consideration		-		-		-		-		-		-		644		644
Other		-		86		-		86		-		8		-		8
Total	$	-	$	91	$	-	$	91	$	-	$	369	$	1,527	$	1,896

Contractual Obligation

As a result of the acquisition of the Universal Orlando theme park in 2011, we assumed a contractual obligation that involves an interest held by a third party in the revenue of certain theme parks. The arrangement provides the counterparty with the right to periodic payments associated with current period revenue and, beginning in 2017, the option to require NBCUniversal to purchase the interest for cash in an amount based on a contractually specified formula. The arrangement was recognized at fair value at the time of the acquisition and the fair value has been adjusted periodically since the acquisition with the expectation that the arrangement would be settled in 2017, or shortly thereafter. It has a current carrying value of $1.1 billion and adjustments to fair value, as well as the periodic payments, have been presented in other income (expense), net in our consolidated statement of income.

As a result of the continuing process of obtaining additional information and revising estimates, including in 2015 the estimated impact on the arrangement of the Universal Studios Japan transaction and the planned development of a theme park in China, we no longer expect the settlement of the arrangement in 2017, or shortly thereafter. Accordingly, in the fourth quarter of 2015, we concluded that we should no longer adjust the arrangement to fair value and it is no longer presented in the recurring fair value measurements table. We also concluded that the amounts that are payable based on current period revenue should be presented in other operating and administrative expenses. We believe these changes are preferable because they better reflect the economic substance of the arrangement as a revenue participation similar to those that exist in our film and television agreements. The change in our method of accounting coupled with the change in likelihood of the settlement result in the method being applied prospectively, similar to a change in estimate. See Note 18 for the treatment of this change in method in our segment reporting presentation.

Contingent Consideration

In June 2015, we settled a contingent consideration liability related to the acquisition of NBCUniversal, which was based upon future net tax benefits realized by us that would affect future payments to GE, for a payment of $450 million, which is included as a financing activity in our consolidated statement of cash flows. The settlement resulted in a gain of $240 million, which was recorded to other income (expense), net in our consolidated statement of income.

Nonrecurring Fair Value Measurements

We have assets and liabilities that are required to be recorded at fair value on a nonrecurring basis when certain circumstances occur. In the case of film, television or stage play production costs, when an event or change in circumstance occurs that may indicate that the fair value of a production is less than its unamortized costs, we determine the fair value of the production and record an adjustment for the amount by which the unamortized capitalized costs exceed the production’s fair value. The estimated fair value of a production is based on Level 3 inputs that primarily use an analysis of future expected cash flows. Adjustments to capitalized film and stage play production costs of $42 million, $26 million and $167 million were recorded in 2015, 2014 and 2013, respectively.

NBCUniversal Media LLC [Member]

Fair Value Measurements

Note 11: Fair Value Measurements

The accounting guidance related to financial assets and financial liabilities (“financial instruments”) establishes a hierarchy that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach and cost approach). Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of financial instruments and their classification within the fair value hierarchy.

Our financial instruments that are accounted for at fair value on a recurring basis were not material for all periods presented.

As a result of the acquisition of the Universal Orlando theme park in 2011, we assumed a contractual obligation that involves an interest held by a third party in the revenue of certain theme parks. The arrangement provides the counterparty with the right to periodic payments associated with current period revenue and, beginning in 2017, the option to require us to purchase the interest for cash in an amount based on a contractually specified formula. The arrangement was recognized at fair value at the time of the acquisition and the fair value has been adjusted periodically since the acquisition with the expectation that the arrangement would be settled in 2017, or shortly thereafter. It has a current carrying value of $1.1 billion and adjustments to fair value, as well as the periodic payments, have been presented in other income (expense), net in our consolidated statement of income.

As a result of the continuing process of obtaining additional information and revising estimates, including in 2015 the estimated impact on the arrangement of the Universal Studios Japan transaction and the planned development of a theme park in China, we no longer expect the settlement of the arrangement in 2017, or shortly thereafter. Accordingly, in the fourth quarter of 2015, we concluded that we should no longer adjust the arrangement to fair value and it is no longer presented in the recurring fair value measurements table. We also concluded that the amounts that are payable based on current period revenue should be presented in other operating and administrative expenses. We believe these changes are preferable because they better reflect the economic substance of the arrangement as a revenue participation similar to those that exist in our film and television agreements. The change in our method of accounting coupled with the change in likelihood of the settlement result in the method being applied prospectively, similar to a change in estimate. See Note 17 for the treatment of this change in method in our segment reporting presentation.

Nonrecurring Fair Value Measurements

We have assets that are required to be recorded at fair value on a nonrecurring basis when certain circumstances occur. In the case of film, television or stage play production costs, when an event or change in circumstance occurs that may indicate that the fair value of a production is less than its unamortized costs, we determine the fair value of the production and record an adjustment for the amount by which the unamortized capitalized costs exceed the production’s fair value. The estimated fair value of a production is based on Level 3 inputs that primarily use an analysis of future expected cash flows. Adjustments to capitalized film and stage play production costs of $42 million, $26 million and $167 million were recorded in 2015, 2014 and 2013, respectively.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Pension Plans and Postretirement Benefits

12 Months Ended

Dec. 31, 2015

Postretirement, Pension and Other Employee Benefit Plans

Note 12: Postretirement, Pension and Other Employee Benefit Plans

The table below provides condensed information on our postretirement and pension benefit plans.

			2015					2014						2013
Year ended December 31 (in millions)		Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits
Benefit obligation		$	820		$	309		$	837		$	581		$	633		$	498
Fair value of plan assets^(a)			-			-			-			242			-			220
Plan funded status and recorded
	benefit obligation		(820)			(309)			(837)			(339)			(633)			(278)
Portion of benefit obligation not
	yet recognized in benefits expense		(33)			14			46			53			(110)			(3)
Benefits expense			75			13			59			14			65			12
Discount rate			4.70-4.73	%	4.31-4.40		%		4.25	%	3.75-4.25		%		5.00-5.25	%	4.50-5.25		%
Expected return on plan assets			N/A			N/A			N/A			5.00	%		N/A			5.00	%

(a) The fair value of the plan assets are primarily based on Level 1 inputs that use quoted market prices for identical financial instruments in an active market.

Postretirement Benefit Plans

We sponsor various benefit plans that provide postretirement benefits to eligible employees based on years of service. The Comcast Postretirement Healthcare Stipend Program (the “stipend plan”) provides an annual stipend for reimbursement of healthcare costs to each eligible employee based on years of service. Under the stipend plan, we are not exposed to the increasing costs of healthcare because the benefits are fixed at a predetermined amount.

NBCUniversal’s postretirement medical and life insurance plans provide continuous coverage to employees eligible to receive such benefits. A small number of eligible employees also participate in legacy plans of acquired companies.

All of our postretirement benefit plans are unfunded and substantially all of our postretirement benefit obligations are recorded to noncurrent liabilities. The expense we recognize for our postretirement benefit plans is determined using certain assumptions, including the discount rate.

Pension Plans

NBCUniversal

NBCUniversal sponsors various qualified and nonqualified defined benefit plans for domestic employees for which future benefits have been frozen since the beginning of 2013, therefore we did not recognize service costs related to our pension plans for the periods presented. The expense we recognize for our defined benefit plans is determined using certain assumptions, including the discount rate and the expected long-term rate of return on plan assets. We recognize the funded or unfunded status of our defined benefit plans as an asset or liability in our consolidated balance sheet and recognize changes in the funded status in the year in which the changes occur in accumulated other comprehensive income (loss). In addition to the defined benefit plans it sponsors, NBCUniversal is also obligated to reimburse GE for future benefit payments to those participants who were vested in the supplemental pension plan sponsored by GE at the time of the NBCUniversal transaction in 2011.

In September 2015, we settled all of our obligations related to the termination in December 2013 of the NBCUniversal qualified pension plan. In connection with this final settlement, we fully funded the plan with an additional contribution of $20 million and recorded expenses of $27 million in other operating and administrative expenses.

Other

In August 2013, we settled all of our obligations related to the termination in February 2012 of the qualified pension plan that provided benefits to former employees of a company we acquired as part of the AT&T Broadband transaction in 2002. In connection with this final settlement, we fully funded the plan with an additional contribution of $55 million and recorded expenses of $74 million in other operating and administrative expenses, which was previously recorded in accumulated other comprehensive income (loss).

Other Employee Benefits

Deferred Compensation Plans

We maintain unfunded, nonqualified deferred compensation plans for certain members of management and nonemployee directors (each, a “participant”). The amount of compensation deferred by each participant is based on participant elections. Participant accounts, except for those in the NBCUniversal plan, are credited with income primarily based on a fixed annual rate. Participants in the NBCUniversal plan designate one or more valuation funds, independently established funds or indices that are used to determine the amount of investment gain or loss in the participant’s account. Participants are eligible to receive distributions from their account based on elected deferral periods that are consistent with the plans and applicable tax law.

The table below presents the benefit obligation and interest expense for our deferred compensation plans.

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	2,038	$	1,774	$	1,434
Interest expense	$	171	$	149	$	128

We have purchased life insurance policies to recover a portion of the future payments related to our deferred compensation plans. As of December 31, 2015 and 2014, the cash surrender value of these policies, which is recorded to other noncurrent assets, was $658 million and $628 million, respectively.

Retirement Investment Plans

We sponsor several 401(k) defined contribution retirement plans that allow eligible employees to contribute a portion of their compensation through payroll deductions in accordance with specified plan guidelines. We make contributions to the plans that include matching a percentage of the employees’ contributions up to certain limits. In 2015, 2014 and 2013, expenses related to these plans totaled $416 million, $379 million and $324 million, respectively.

Split-Dollar Life Insurance Agreements

Pursuant to pre-existing contractual obligations, we have collateral assignment split-dollar life insurance agreements with select key current and former employees that require us to incur certain insurance-related costs. Under some of these agreements, our obligation to provide benefits to the employees extends beyond retirement.

The table below presents the benefit obligation and expenses related to our split-dollar life insurance agreements.

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	233	$	217	$	212
Other operating and administrative expenses	$	67	$	52	$	50

Multiemployer Benefit Plans

We participate in various multiemployer benefit plans, including pension and postretirement benefit plans, that cover some of our employees and temporary employees who are represented by labor unions. We also participate in other multiemployer benefit plans that provide health and welfare and retirement savings benefits to active and retired participants. We make periodic contributions to these plans in accordance with the terms of applicable collective bargaining agreements and laws but do not sponsor or administer these plans. We do not participate in any multiemployer benefit plans for which we consider our contributions to be individually significant, and the largest plans in which we participate are funded at a level of 80% or greater.

In 2015, 2014 and 2013, the total contributions we made to multiemployer pension plans were $77 million, $58 million and $59 million, respectively. In 2015, 2014 and 2013, the total contributions we made to multiemployer postretirement and other benefit plans were $119 million, $125 million and $98 million, respectively.

If we cease to be obligated to make contributions or were to otherwise withdraw from participation in any of these plans, applicable law would require us to fund our allocable share of the unfunded vested benefits, which is known as a withdrawal liability. In addition, actions taken by other participating employers may lead to adverse changes in the financial condition of one of these plans, which could result in an increase in our withdrawal liability.

Severance Benefits

We provide severance benefits to certain former employees. A liability is recorded when payment is probable, the amount is reasonably estimable, and the obligation relates to rights that have vested or accumulated. In 2015, 2014 and 2013, we recorded severance costs of $181 million, $152 million and $160 million, respectively.

NBCUniversal Media LLC [Member]

Postretirement, Pension and Other Employee Benefit Plans

Note 12: Postretirement, Pension and Other Employee Benefit Plans

The table below provides condensed information on our postretirement and pension benefit plans.

		2015						2014						2013
Year ended December 31 (in millions)		Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits
Benefit obligation		$	197		$	309		$	209		$	581		$	158		$	498
Fair value of plan assets^(a)			-			-			-			242			-			220
Plan funded status and recorded
	benefit obligation		(197)			(309)			(209)			(339)			(158)			(278)
Portion of benefit obligation not yet
	recognized in benefits expense		(27)			14			(3)			53			(44)			(3)
Benefits expense			15			13			12			14			14			12
Discount rate			4.73	%		4.31-4.40	%		4.25	%		3.75-4.25	%		5.25	%		4.50-5.25	%
Expected return on plan assets			N/A			N/A			N/A			5.00	%		N/A			5.00	%

(a) The fair value of the plan assets are primarily based on Level 1 inputs that use quoted market prices for identical financial instruments in an active market.

Postretirement Benefit Plans

We have postretirement medical and life insurance plans that provide continuous coverage to employees eligible to receive such benefits and give credit for length of service provided before the close of the joint venture transaction in 2011.

Substantially all of the employees that were contributed by Comcast as part of the joint venture transaction participate in a postretirement healthcare stipend program (the “stipend plan”). The stipend plan provides an annual stipend for reimbursement of healthcare costs to each eligible employee based on years of service. Under the stipend plan, we are not exposed to the increasing costs of healthcare because the benefits are fixed at a predetermined amount.

Pension Plans

We sponsor various qualified and nonqualified defined benefit plans for domestic employees for which future benefits have been frozen since the beginning of 2013, therefore we did not recognize service costs related to our pension plans for the periods presented. The expense we recognize for our defined benefit plans is determined using certain assumptions, including the discount rate and the expected long-term rate of return on plan assets. We recognize the funded or unfunded status of our defined benefit plans as an asset or liability in our consolidated balance sheet and recognize changes in the funded status in the year in which the changes occur in accumulated other comprehensive income (loss). In addition to the defined benefit plans we sponsor, we are also obligated to reimburse GE for future benefit payments to those participants who were vested in the supplemental pension plan sponsored by GE at the time of the joint venture transaction.

Our consolidated balance sheet also includes the assets and liabilities of certain legacy pension plans, as well as the assets and liabilities for pension plans of certain foreign subsidiaries. As of December 31, 2015 and 2014, the benefit obligations associated with these plans exceeded the fair value of the plan assets by $67 million and $51 million, respectively.

Other Employee Benefits

Deferred Compensation Plans

We maintain unfunded, nonqualified deferred compensation plans for certain members of management (each, a “participant”). The amount of compensation deferred by each participant is based on participant elections. Participants in the plan designate one or more valuation funds, independently established funds or indices that are used to determine the amount of investment gain or loss in the participant’s account.

Additionally, certain of our employees participate in Comcast’s unfunded, nonqualified deferred compensation plan. The amount of compensation deferred by each participant is based on participant elections. Participant accounts are credited with income primarily based on a fixed annual rate.

In the case of both deferred compensation plans, participants are eligible to receive distributions from their account based on elected deferral periods that are consistent with the plans and applicable tax law.

The table below presents the benefit obligation and interest expense for our deferred compensation plans.

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	417	$	349	$	250
Interest expense	$	28	$	24	$	18

Retirement Investment Plans

We sponsor several 401(k) defined contribution retirement plans that allow eligible employees to contribute a portion of their compensation through payroll deductions in accordance with specified plan guidelines. We make contributions to the plans that include matching a percentage of the employees’ contributions up to certain limits. In 2015, 2014 and 2013, expenses related to these plans totaled $174 million, $165 million and $152 million, respectively.

Multiemployer Benefit Plans

Severance Benefits

We provide severance benefits to certain former employees. A liability is recorded when payment is probable, the amount is reasonably estimable, and the obligation relates to rights that have vested or accumulated. In 2015, 2014 and 2013, we recorded severance costs of $113 million, $113 million and $116 million, respectively.

Equity

12 Months Ended

Dec. 31, 2015

Equity

Note 13: Equity

Class A Special Common Stock Reclassification

In December 2015, our shareholders approved a proposal to amend and restate our Amended and Restated Certificate of Incorporation in order to reclassify each issued share of our Class A Special common stock into one share of our Class A common stock. This reclassification became effective as of the close of business on December 11, 2015, at which time our Class A Special common stock was no longer outstanding and ceased trading on the NASDAQ under the symbol CMCSK and instead became listed on the NASDAQ under the symbol CMCSA. There was no impact on basic and diluted EPS or the carrying value of total common stock as presented in our consolidated balance sheet because it was a one-for-one stock exchange.

Common Stock

In the aggregate, holders of our Class A common stock have 66²/₃% of the voting power of our common stock and holders of our Class B common stock have 33¹/₃% of the voting power of our common stock. Each share of our Class B common stock is entitled to 15 votes. The number of votes held by each share of our Class A common stock depends on the number of shares of Class A and Class B common stock outstanding at any given time. The 33¹/₃% aggregate voting power of our Class B common stock cannot be diluted by additional issuances of any other class of common stock. Our Class B common stock is convertible, share for share, into Class A common stock, subject to certain restrictions.

Shares of Common Stock Outstanding
(in millions)	A	A Special	B
Balance, December 31, 2012	2,122	508	9
Stock compensation plans	14	-	-
Repurchases and retirements of common stock	-	(49)	-
Employee stock purchase plans	2	-	-
Balance, December 31, 2013	2,138	459	9
Stock compensation plans	13	-	-
Repurchases and retirements of common stock	(22)	(59)	-
Employee stock purchase plans	2	-	-
Balance, December 31, 2014	2,131	400	9
Stock compensation plans	12	-	-
Repurchases and retirements of common stock	(62)	(54)	-
Employee stock purchase plans	2	-	-
Reclassification of Class A Special common stock	346	(346)	-
Other	4	-	-
Balance, December 31, 2015	2,433	-	9

Share Repurchases

Effective January 1, 2016, our Board of Directors increased our share repurchase program authorization to a total of $10 billion, which does not have an expiration date. Under this authorization, we may repurchase shares in the open market or in private transactions.

Share Repurchases
Year ended December 31 (in millions)		2015		2014		2013
Cash consideration	$	6,750	$	4,251	$	2,000
Shares repurchased		116		81		49

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)		2015		2014
Unrealized gains (losses) on marketable securities	$	1	$	1
Deferred gains (losses) on cash flow hedges		(46)		(4)
Unrecognized gains (losses) on employee benefit obligations		6		(68)
Cumulative translation adjustments		(135)		(75)
Accumulated other comprehensive income (loss), net of deferred taxes	$	(174)	$	(146)

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Share-Based Compensation

12 Months Ended

Dec. 31, 2015

Share-Based Compensation

Note 14: Share-Based Compensation

The tables below provide condensed information on our share-based compensation.

Recognized Share-Based Compensation Expense
Year ended December 31 (in millions)		2015		2014		2013
Restricted share units	$	273	$	231	$	175
Stock options		157		160		139
Employee stock purchase plans		25		23		20
Total	$	455	$	414	$	334

As of December 31, 2015, we had unrecognized pretax compensation expense of $635 million related to nonvested RSUs and unrecognized pretax compensation expense of $337 million related to nonvested stock options that will be recognized over a weighted-average period of approximately 1.8 years and 1.8 years, respectively. In 2015, 2014 and 2013, we recorded increases to additional paid-in capital of $311 million, $299 million and $244 million, respectively, which were the result of tax benefits associated with our share-based compensation plans.

Stock Options and Restricted Share Units
As of December 31, 2015, unless otherwise stated (in millions, except per share data)		Stock Options		RSUs
Awards granted during 2015		18		9
Weighted-average exercise price of awards granted during 2015	$	59.39
Stock options outstanding and nonvested RSUs		94		23
Weighted-average exercise price of stock options outstanding	$	36.63
Weighted-average fair value at grant date of nonvested RSUs			$	44.19

As of December 31, 2015, substantially all of our stock options outstanding were net settled stock options. Net settled stock options, as opposed to stock options exercised with a cash payment, result in fewer shares being issued and no cash proceeds being received by us when the options are exercised. Our share-based compensation primarily consists of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Awards generally vest over a period of 5 years and in the case of stock options, have a 10 year term. Additionally, through our employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions.

The cost associated with our share-based compensation is based on an award’s estimated fair value at the date of grant and is recognized over the period in which any related services are provided. RSUs are valued based on the closing price of our common stock on the date of grant and are discounted for the lack of dividends, if any, during the vesting period. We use the Black-Scholes option pricing model to estimate the fair value of stock option awards. The table below presents the weighted-average fair value on the date of grant of RSUs and stock options awarded under our various plans and the related weighted-average valuation assumptions.

Year ended December 31			2015			2014			2013
RSUs fair value		$	58.81		$	47.91		$	38.28
Stock options fair value		$	11.78		$	11.11		$	8.80
Stock Option Valuation Assumptions:
	Dividend yield		1.7	%		1.8	%		1.9	%
	Expected volatility		23.0	%		24.0	%		25.0	%
	Risk-free interest rate		1.6	%		2.2	%		1.3	%
	Expected option life (in years)		6.0			6.5			7.0

NBCUniversal Media LLC [Member]

Share-Based Compensation

Note 13: Share-Based Compensation

The tables below provide condensed information on our share-based compensation.

Recognized Share-Based Compensation Expense
Year ended December 31 (in millions)	2015		2014		2013
Restricted share units	$	78	$	69	$	42
Stock options		10		16		15
Employee stock purchase plans		6		6		5
Total	$	94	$	91	$	62

As of December 31, 2015, we had unrecognized pretax compensation expense of $150 million related to nonvested Comcast restricted share units (“RSUs”) and unrecognized pretax compensation expense of $21 million related to nonvested Comcast stock options that will be recognized over a weighted-average period of approximately 1.8 years and 2.0 years, respectively.

Comcast maintains share-based compensation plans that primarily consist of awards of RSUs and stock options to certain employees and directors as part of its approach to long-term incentive compensation. Awards generally vest over a period of 5 years and in the case of stock options, have a 10 year term. Additionally, through its employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions. Certain of our employees participate in these plans and the expense associated with their participation is settled in cash with Comcast.

The cost associated with Comcast’s share-based compensation is based on an award’s estimated fair value at the date of grant and is recognized over the period in which any related services are provided. RSUs are valued based on the closing price of Comcast common stock on the date of grant and are discounted for the lack of dividends, if any, during the vesting period. Comcast uses the Black-Scholes option pricing model to estimate the fair value of stock option awards. The table below presents the weighted-average fair value on the date of grant of RSUs and stock options awarded under Comcast’s various plans to employees of NBCUniversal and the related weighted-average valuation assumptions.

Year ended December 31			2015			2014			2013
RSUs fair value		$	59.37		$	48.04		$	37.79
Stock options fair value		$	11.79		$	11.09		$	8.86
Stock Option Valuation Assumptions:
	Dividend yield		1.7	%		1.8	%		1.9	%
	Expected volatility		23.0	%		24.0	%		25.2	%
	Risk-free interest rate		1.6	%		2.2	%		1.3	%
	Expected option life (in years)		6.0			6.5			7.0

Income Taxes

12 Months Ended

Dec. 31, 2015

Income Taxes

Note 15: Income Taxes

Components of Income Tax Expense
Year ended December 31 (in millions)			2015		2014		2013
Current Expense (Benefit):
	Federal	$	3,210	$	2,392	$	3,183
	State		570		174		581
	Foreign		221		142		200
			4,001		2,708		3,964
Deferred Expense (Benefit):
	Federal		890		1,000		(76)
	State		66		173		108
	Foreign		2		(8)		(16)
			958		1,165		16
Income tax expense		$	4,959	$	3,873	$	3,980

Our income tax expense differs from the federal statutory amount because of the effect of the items detailed in the table below.

Year ended December 31 (in millions)		2015		2014		2013
Federal tax at statutory rate	$	4,680	$	4,363	$	3,890
State income taxes, net of federal benefit		326		329		319
Foreign income taxes, net of federal credit		13		-		15
Nontaxable income attributable to noncontrolling interests		(69)		(62)		(103)
Adjustments to uncertain and effectively settled tax positions, net		15		(408)		58
Accrued interest on uncertain and effectively settled tax positions, net		73		(235)		114
Other		(79)		(114)		(313)
Income tax expense	$	4,959	$	3,873	$	3,980

We base our provision for income taxes on our current period income, changes in our deferred income tax assets and liabilities, income tax rates, changes in estimates of our uncertain tax positions, and tax planning opportunities available in the jurisdictions in which we operate. We recognize deferred tax assets and liabilities when there are temporary differences between the financial reporting basis and tax basis of our assets and liabilities and for the expected benefits of using net operating loss carryforwards. When a change in the tax rate or tax law has an impact on deferred taxes, we apply the change based on the years in which the temporary differences are expected to reverse. We record the change in our consolidated financial statements in the period of enactment.

The determination of the income tax consequences of a business combination includes identifying the tax basis of assets and liabilities acquired and any contingencies associated with uncertain tax positions assumed or resulting from the business combination. Deferred tax assets and liabilities related to temporary differences of an acquired entity are recorded as of the date of the business combination and are based on our estimate of the ultimate tax basis that will be accepted by the various tax authorities. We record liabilities for contingencies associated with prior tax returns filed by the acquired entity based on criteria set forth in the appropriate accounting guidance. We adjust the deferred tax accounts and the liabilities periodically to reflect any revised estimated tax basis and any estimated settlements with the various tax authorities. The effects of these adjustments are recorded to income tax expense.

From time to time, we engage in transactions in which the tax consequences may be subject to uncertainty. In these cases, we evaluate our tax positions using the recognition threshold and the measurement attribute in accordance with the accounting guidance related to uncertain tax positions. Examples of these transactions include business acquisitions and dispositions, including consideration paid or received in connection with these transactions, certain financing transactions, and the allocation of income among state and local tax jurisdictions. Significant judgment is required in assessing and estimating the tax consequences of these transactions. We determine whether it is more likely than not that a tax position will be sustained on examination, including the resolution of any related appeals or litigation processes, based on the technical merits of the position. A tax position that meets the more-likely-than-not recognition threshold is measured to determine the amount of benefit to be recognized in our consolidated financial statements. We classify interest and penalties, if any, associated with our uncertain tax positions as a component of income tax expense.

NBCUniversal

For U.S. federal income tax purposes, NBCUniversal Holdings is treated as a partnership and NBCUniversal is disregarded as an entity separate from NBCUniversal Holdings. Accordingly, neither NBCUniversal Holdings nor NBCUniversal and its subsidiaries incur any material current or deferred domestic income taxes. Following the close of the NBCUniversal redemption transaction in March 2013, the taxable income of NBCUniversal Holdings and NBCUniversal is allocable entirely to us.

We are indemnified by GE for any income tax liability attributable to the NBCUniversal contributed businesses for periods prior to the close of the NBCUniversal transaction in January 2011 and also for any income tax liability attributable to NBCUniversal Enterprise for periods prior to the date of the NBCUniversal redemption transaction. We have indemnified GE for any income tax liability attributable to the businesses we contributed to NBCUniversal for periods prior to the close of the NBCUniversal transaction.

Current and deferred foreign income taxes are incurred by NBCUniversal’s foreign subsidiaries. In 2015, 2014 and 2013, NBCUniversal had foreign income before taxes of $704 million, $385 million and $524 million, respectively, on which foreign income tax expense was recorded. We recorded U.S. income tax expense on our allocable share of NBCUniversal’s income before domestic and foreign taxes, which was reduced by a U.S. tax credit equal to our allocable share of NBCUniversal’s foreign income tax expense.

Components of Net Deferred Tax Liability
December 31 (in millions)				2015		2014
Deferred Tax Assets:
	Net operating loss carryforwards		$	551	$	448
	Differences between book and tax basis of long-term debt			115		116
	Differences between book and tax basis of investments			101		-
	Nondeductible accruals and other			3,589		3,383
	Less: Valuation allowance			342		375
				4,014		3,572
Deferred Tax Liabilities:
	Differences between book and tax basis of property and equipment and intangible assets			36,392		35,112
	Differences between book and tax basis of investments			-		186
	Differences between book and tax basis of indexed debt securities			457		534
	Differences between book and tax basis of foreign subsidiaries and undistributed foreign
		earnings		731		504
				37,580		36,336
Net deferred tax liability			$	33,566	$	32,764

Changes in our net deferred tax liability in 2015 that were not recorded as deferred income tax expense are primarily related to decreases of $28 million associated with items included in other comprehensive income (loss) and decreases of $132 million related to acquisitions made in 2015. Our net deferred tax liability includes $23 billion related to cable franchise rights that will remain unchanged unless we recognize an impairment or dispose of a cable franchise.

As of December 31, 2015, we had federal net operating loss carryforwards of $135 million and various state net operating loss carryforwards that expire in periods through 2035. As of December 31, 2015, we also had foreign net operating loss carryforwards of $700 million that are related to the foreign operations of NBCUniversal, the majority of which expire in periods through 2025. The determination of the realization of the state and foreign net operating loss carryforwards is dependent on our subsidiaries’ taxable income or loss, apportionment percentages, and state and foreign laws that can change from year to year and impact the amount of such carryforwards. We recognize a valuation allowance if we determine it is more likely than not that some portion, or all, of a deferred tax asset will not be realized. As of December 31, 2015 and 2014, our valuation allowance was primarily related to state and foreign net operating loss carryforwards.

Uncertain Tax Positions

Our uncertain tax positions as of December 31, 2015 totaled $1.1 billion, which exclude the federal benefits on state tax positions that were recorded as deferred income taxes. Included in our uncertain tax positions was $220 million related to tax positions of NBCUniversal and NBCUniversal Enterprise for which we have been indemnified by GE. If we were to recognize the tax benefit for our uncertain tax positions in the future, $592 million would impact our effective tax rate and the remaining amount would increase our deferred income tax liability. The amount and timing of the recognition of any such tax benefit is dependent on the completion of examinations of our tax filings by the various tax authorities and the expiration of statutes of limitations. In 2014, we reduced our accruals for uncertain tax positions and the related accrued interest on these tax positions and, as a result, our income tax expense decreased by $759 million. It is reasonably possible that certain tax contests could be resolved within the next 12 months that may result in a decrease in our effective tax rate.

Reconciliation of Unrecognized Tax Benefits
(in millions)		2015		2014		2013
Balance, January 1	$	1,171	$	1,701	$	1,573
Additions based on tax positions related to the current year		67		63		90
Additions based on tax positions related to prior years		98		111		201
Additions from acquired subsidiaries		-		-		268
Reductions for tax positions of prior years		(84)		(220)		(141)
Reductions due to expiration of statutes of limitations		(41)		(448)		(3)
Settlements with tax authorities		(75)		(36)		(287)
Balance, December 31	$	1,136	$	1,171	$	1,701

As of December 31, 2015 and 2014, our accrued interest associated with tax positions was $510 million and $452 million, respectively. As of December 31, 2015 and 2014, $49 million and $44 million, respectively, of these amounts were related to tax positions of NBCUniversal and NBCUniversal Enterprise for which we have been indemnified by GE.

During 2015, the IRS completed its examination of our income tax returns for the year 2013. Various states are examining our tax returns, with most of the periods relating to tax years 2000 and forward. The tax years of our state tax returns currently under examination vary by state.

NBCUniversal Media LLC [Member]

Income Taxes

Note 14: Income Taxes

Components of Income Tax Expense
Year ended December 31 (in millions)		2015		2014		2013
Foreign
	Current income tax expense	$	81	$	33	$	77
	Deferred income tax expense		2		(8)		(16)
	Withholding tax expense		139		108		123
U.S. domestic tax expense			5		10		22
Income tax expense		$	227	$	143	$	206

We are a limited liability company, and our company is disregarded for U.S. federal income tax purposes as an entity separate from NBCUniversal Holdings, a tax partnership. NBCUniversal and our subsidiaries are not expected to incur any significant current or deferred U.S. domestic income taxes. Our tax liability is comprised primarily of withholding tax on foreign licensing activity and income taxes on foreign earnings. As a result of our tax status, the deferred tax assets and liabilities included in our consolidated balance sheet at December 31, 2015 and 2014 were not material.

In jurisdictions in which we are subject to income taxes, we base our provision for income taxes on our current period income, changes in our deferred income tax assets and liabilities, income tax rates, changes in estimates of our uncertain tax positions, and tax planning opportunities available in the jurisdictions in which we operate. We recognize deferred tax assets and liabilities when there are temporary differences between the financial reporting basis and tax basis of our assets and liabilities and for the expected benefits of using net operating loss carryforwards. When a change in the tax rate or tax law has an impact on deferred taxes, we apply the change based on the years in which the temporary differences are expected to reverse. We record the change in our consolidated financial statements in the period of enactment.

We classify interest and penalties, if any, associated with our uncertain tax positions as a component of income tax expense.

Uncertain Tax Positions

We retain liabilities for uncertain tax positions where we are the tax filer of record. GE and Comcast have indemnified NBCUniversal Holdings and us with respect to our income tax obligations attributable to periods prior to the close of the joint venture transaction, including indemnification of uncertain tax positions for these periods. The liabilities for uncertain tax positions included in our consolidated balance sheet were not material as of December 31, 2015 and 2014.

Various domestic and foreign tax authorities are examining our tax returns through 2014. The majority of the periods under examination relate to tax years 2005 and forward.

Supplemental Financial Information

12 Months Ended

Dec. 31, 2015

Supplemental Financial Information

Note 16: Supplemental Financial Information

Receivables
December 31 (in millions)		2015		2014
Receivables, gross	$	7,595	$	6,885
Less: Allowance for returns and customer incentives		473		359
Less: Allowance for doubtful accounts		226		205
Receivables, net	$	6,896	$	6,321

In addition to the amounts in the table above, as of December 31, 2015 and 2014, noncurrent receivables of $721 million and $569 million, respectively, are included in other noncurrent assets, net that primarily relate to the licensing of our television and film productions to third parties.

Cash Payments for Interest and Income Taxes
Year ended December 31 (in millions)		2015		2014		2013
Interest	$	2,443	$	2,389	$	2,355
Income taxes	$	3,726	$	3,668	$	3,946

Noncash Investing and Financing Activities

During 2015:

• we acquired $1.1 billion of property and equipment and intangible assets that were accrued but unpaid

• we recorded a liability of $612 million for a quarterly cash dividend of $0.25 per common share paid in January 2016

• we assumed liabilities related to the Universal Studios Japan transaction (see Note 5 for additional information)

• we used $517 million of equity securities to settle a portion of our obligations under prepaid forward sale agreements

During 2014:

• we acquired $797 million of property and equipment and intangible assets that were accrued but unpaid

• we recorded a liability of $572 million for a quarterly cash dividend of $0.225 per common share paid in January 2015

• we used $3.2 billion of equity securities to settle a portion of our obligations under prepaid forward sale agreements

During 2013:

• we acquired GE’s 49% common equity interest in NBCUniversal Holdings that we did not already own for total consideration of $16.7 billion, which included noncash consideration of $6 billion that was comprised of $4 billion aggregate principal amount of senior notes issued by NBCUniversal Enterprise, $1.25 billion of borrowings under NBCUniversal Enterprise’s credit facility and $725 million aggregate liquidation preference of NBCUniversal Enterprise Series A cumulative preferred stock (see Note 5 for additional information on the NBCUniversal redemption transaction)

• we acquired $872 million of property and equipment and intangible assets that were accrued but unpaid

• we recorded a liability of $509 million for a quarterly cash dividend of $0.195 per common share paid in January 2014

• we used $1.4 billion of equity securities to settle a portion of our obligations under prepaid forward sale agreements

• we closed a transaction with Liberty Media that included, among other things, the delivery of Liberty Media shares owned by us in exchange for Liberty Media’s interests in one of NBCUniversal’s contractual obligations (see Note 7 for additional information)

NBCUniversal Media LLC [Member]

Supplemental Financial Information

Note 15: Supplemental Financial Information

Receivables
December 31 (in millions)		2015		2014
Receivables, gross	$	5,949	$	5,258
Less: Allowance for returns and customer incentives		469		356
Less: Allowance for doubtful accounts		69		60
Receivables, net	$	5,411	$	4,842

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)	2015		2014
Deferred gains (losses) on cash flow hedges	$	(1)	$	20
Unrecognized gains (losses) on employee benefit obligations		(1)		(61)
Cumulative translation adjustments		(210)		(118)
Accumulated other comprehensive income (loss)	$	(212)	$	(159)

Cash Payments for Interest and Income Taxes
Year ended December 31 (in millions)	2015		2014			2013
Interest	$	456	$	485	$	462
Income taxes	$	182	$	174	$	205

Noncash Investing and Financing Activities

During 2015:

we acquired $287 million of property and equipment and intangible assets that were accrued but unpaid
Comcast contributed the net assets of $252 million related to an acquired business, which was a noncash transaction
we assumed liabilities related to the Universal Studios Japan transaction (see Note 4 for additional information)

During 2014:

we acquired $148 million of property and equipment and intangible assets that were accrued but unpaid

During 2013:

we acquired $306 million of property and equipment and intangible assets that were accrued but unpaid

Commitments and Contingencies

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies

Note 17: Commitments and Contingencies

Commitments

NBCUniversal enters into long-term commitments with third parties in the ordinary course of its business, including commitments to acquire film and television programming, creative talent and employment agreements, and various other television-related commitments. Many of NBCUniversal’s employees, including writers, directors, actors, technical and production personnel, and others, as well as some of its on-air and creative talent, are covered by collective bargaining agreements or works councils. As of December 31, 2015, the total number of NBCUniversal full-time, part-time and hourly employees on its payroll covered by collective bargaining agreements was 7,500 full-time equivalent employees. Of this total, approximately 10% of these full-time equivalent employees were covered by collective bargaining agreements that have expired or are scheduled to expire during 2016.

We, through Comcast Spectacor, have employment agreements with both players and coaches of the Philadelphia Flyers. Certain of these employment agreements, which provide for payments that are guaranteed regardless of employee injury or termination, are covered by disability insurance if certain conditions are met.

The table below summarizes our minimum annual programming and talent commitments and our minimum annual rental commitments for office space, equipment and transponder service agreements under operating leases. Programming and talent commitments include acquired film and television programming, including U.S. television rights to the Olympic Games through 2032, Sunday Night Football on NBC through the 2022-23 season, NASCAR on the NBC Sports Network through 2024 and other programming commitments, as well as various contracts with creative talent and employment agreements.

As of December 31, 2015 (in millions)		Programming and Talent Commitments		Operating Leases
2016	$	6,405	$	452
2017	$	3,788	$	412
2018	$	4,474	$	370
2019	$	3,280	$	324
2020	$	4,357	$	284
Thereafter	$	23,061	$	1,617

The table below presents our rental expense charged to operations.

Year ended December 31 (in millions)		2015		2014		2013
Rental expense	$	608	$	580	$	616

Contingencies

Antitrust Cases

We are defendants in two purported class actions originally filed in December 2003 in the United States District Courts for the District of Massachusetts and the Eastern District of Pennsylvania. The potential class in the Massachusetts case, which has been transferred to the Eastern District of Pennsylvania, is our customer base in the “Boston Cluster” area, and the potential class in the Pennsylvania case is our customer base in the “Philadelphia and Chicago Clusters,” as those terms are defined in the complaints. In each case, the plaintiffs allege that certain customer exchange transactions with other cable providers resulted in unlawful horizontal market restraints in those areas and seek damages under antitrust statutes, including treble damages.

Classes of Chicago Cluster and Philadelphia Cluster customers were certified in October 2007 and January 2010, respectively. We appealed the class certification in the Philadelphia Cluster case to the Third Circuit Court of Appeals, which affirmed the class certification in August 2011. In June 2012, the U.S. Supreme Court granted our petition to review the Third Circuit Court of Appeals’ ruling and in March 2013, the Supreme Court ruled that the class had been improperly certified and reversed the judgment of the Third Circuit. In August 2013, the plaintiffs in the Philadelphia Cluster case moved to certify a new, smaller class, which we opposed in January 2014. In April 2014, the District Court granted our unopposed motion to de-certify the Chicago Cluster class and the plaintiffs’ unopposed motion to amend the Pennsylvania case so as to dismiss claims relating to the Chicago Cluster. In April 2014, lead counsel for the Boston Cluster cases withdrew, and in June 2014, new counsel requested the Boston Cluster cases be transferred to the federal court in Boston or permission to leave to amend the complaints. The District Court denied the request and dismissed the Boston Cluster cases. In December 2014, the District Court granted preliminary approval to a settlement of the Philadelphia Cluster case, and in September 2015, the District Court granted final approval of the settlement. The settlement of the Philadelphia Cluster case did not have a material effect on our results of operations, cash flows or financial position.

In addition, we are the defendant in putative class actions filed in federal district courts throughout the country. Twenty-three actions were consolidated by the Judicial Panel on Multidistrict Litigation in the United States District Court for the Eastern District of Pennsylvania for pre-trial proceedings. In a consolidated complaint filed in November 2009 on behalf of all plaintiffs in the multidistrict litigation, the plaintiffs allege that we improperly “tie” the rental of set-top boxes to the provision of premium cable services in violation of Section 1 of the Sherman Antitrust Act, various state antitrust laws and unfair/deceptive trade practices acts. The West Virginia Attorney General also filed a complaint in West Virginia state court in July 2009 alleging that we improperly “tie” the rental of set-top boxes to the provision of digital cable services in violation of the West Virginia Antitrust Act and the West Virginia Consumer Credit and Protection Act. The Attorney General also alleges a claim for unjust enrichment/restitution. We removed the case to the United States District Court for West Virginia, and it was subsequently transferred to the United States District Court for the Eastern District of Pennsylvania and consolidated with the multidistrict litigation. In July 2011, we moved to compel arbitration of most of the plaintiffs’ claims and to stay the remaining claims pending arbitration. A comprehensive settlement agreement for all 23 cases that had been submitted to the District Court for preliminary approval in June 2013 was withdrawn in October 2014, and we refiled our motion to compel arbitration. The parties submitted a settlement for the claims of current and former customers who received service in the states of California, Washington and West Virginia in September 2015. In November 2015, the District Court did not approve the settlement, and the plaintiffs then appealed the decision to the Third Circuit Court of Appeals. We do not expect these cases to have a material effect on our results of operations, cash flows or financial position.

Other

We are a defendant in several unrelated lawsuits claiming infringement of various patents relating to various aspects of our businesses. In certain of these cases other industry participants are also defendants, and also in certain of these cases we expect that any potential liability would be in part or in whole the responsibility of our equipment and technology vendors under applicable contractual indemnification provisions. We are also subject to other legal proceedings and claims that arise in the ordinary course of our business. While the amount of ultimate liability with respect to such actions is not expected to materially affect our results of operations, cash flows or financial position, any litigation resulting from any such legal proceedings or claims could be time-consuming and injure our reputation.

NBCUniversal Media LLC [Member]

Commitments and Contingencies

Note 16: Commitments and Contingencies

Commitments

We enter into long-term commitments with third parties in the ordinary course of our business, including commitments to acquire film and television programming, creative talent and employment agreements, and various other television-related commitments. Many of our employees, including writers, directors, actors, technical and production personnel, and others, as well as some of our on-air and creative talent, are covered by collective bargaining agreements or works councils. As of December 31, 2015, the total number of full-time, part-time and hourly employees on our payroll covered by collective bargaining agreements was 7,500 full-time equivalent employees. Of this total, approximately 10% of these full-time equivalent employees were covered by collective bargaining agreements that have expired or are scheduled to expire during 2016.

The table below summarizes our minimum annual programming and talent commitments and our minimum annual rental commitments for office space and equipment under operating leases. Programming and talent commitments include acquired film and television programming, including U.S. television rights to the Olympic Games through 2032, Sunday Night Football on NBC through the 2022-23 season, NASCAR on the NBC Sports Network through 2024 and other programming commitments, as well as various contracts with creative talent and employment agreements.

As of December 31, 2015 (in millions)		Programming and Talent Commitments		Operating Leases
2016	$	6,391	$	177
2017	$	3,783	$	150
2018	$	4,470	$	133
2019	$	3,280	$	126
2020	$	4,357	$	122
Thereafter	$	23,061	$	1,018

The table below presents our rental expense charged to operations.
Year ended December 31 (in millions)	2015		2014		2013
Rental expense	$	213	$	222	$	250

Financial Data by Business Segment

12 Months Ended

Dec. 31, 2015

Financial Data by Business Segment

Note 18: Financial Data by Business Segment

We present our operations in one reportable business segment for Cable Communications and four reportable business segments for NBCUniversal. The Cable Networks, Broadcast Television, Filmed Entertainment and Theme Parks segments comprise the NBCUniversal businesses and are collectively referred to as the NBCUniversal segments. Our financial data by reportable business segment is presented in the tables below.

(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2015
Cable Communications^(a)		$	46,879	$	19,120	$	7,028	$	12,092	$	7,034	$	149,267
NBCUniversal
	Cable Networks^(b)(c)		9,628		3,499		784		2,715		44		28,093
	Broadcast Television^(c)		8,530		780		111		669		117		7,871
	Filmed Entertainment^(b)		7,287		1,234		26		1,208		14		4,255
	Theme Parks^(d)		3,339		1,464		292		1,172		833		14,027
	Headquarters and Other^(e)		14		(625)		326		(951)		378		6,898
	Eliminations^(d)(f)		(336)		62		-		62		-		(454)
NBCUniversal			28,462		6,414		1,539		4,875		1,386		60,690
Corporate and Other			766		(898)		113		(1,011)		79		4,783
Eliminations^(f)			(1,597)		42		-		42		-		(48,166)
Comcast Consolidated		$	74,510	$	24,678	$	8,680	$	15,998	$	8,499	$	166,574

(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2014
Cable Communications^(a)		$	44,140	$	18,112	$	6,422	$	11,690	$	6,154	$	140,616
NBCUniversal
	Cable Networks^(b)(c)		9,563		3,589		748		2,841		49		28,582
	Broadcast Television^(c)		8,542		734		127		607		76		6,806
	Filmed Entertainment^(b)		5,008		711		21		690		11		4,185
	Theme Parks^(d)		2,623		1,096		273		823		671		7,017
	Headquarters and Other^(e)		13		(613)		326		(939)		414		6,467
	Eliminations^(d)(f)		(321)		71		-		71		-		(453)
NBCUniversal			25,428		5,588		1,495		4,093		1,221		52,604
Corporate and Other			709		(778)		102		(880)		45		5,198
Eliminations^(f)			(1,502)		1		-		1		-		(39,232)
Comcast Consolidated		$	68,775	$	22,923	$	8,019	$	14,904	$	7,420	$	159,186


(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
2013
Cable Communications^(a)		$	41,836	$	17,205	$	6,394	$	10,811	$	5,403
NBCUniversal
	Cable Networks^(b)		9,201		3,501		734		2,767		67
	Broadcast Television		7,120		345		98		247		65
	Filmed Entertainment^(b)		5,452		483		15		468		9
	Theme Parks^(d)		2,235		943		300		643		580
	Headquarters and Other^(e)		31		(588)		264		(852)		439
	Eliminations^(d)(f)		(389)		48		-		48		-
NBCUniversal			23,650		4,732		1,411		3,321		1,160
Corporate and Other			600		(489)		66		(555)		33
Eliminations^(f)			(1,429)		(14)		-		(14)		-
Comcast Consolidated		$	64,657	$	21,434	$	7,871	$	13,563	$	6,596

(a) For the years ended December 31, 2015, 2014 and 2013, Cable Communications segment revenue was derived from the following sources:

		2015		2014		2013
Residential:
	Video	45.9	%	47.1	%	49.1	%
	High-speed Internet	26.6	%	25.6	%	24.7	%
	Voice	7.7	%	8.3	%	8.7	%
Business services		10.1	%	9.0	%	7.7	%
Advertising		4.9	%	5.4	%	5.1	%
Other		4.8	%	4.6	%	4.7	%
Total		100	%	100	%	100	%

Subscription revenue received from customers who purchase bundled services at a discounted rate is allocated proportionally to each service based on the individual service’s price on a stand-alone basis.

For each of 2015, 2014 and 2013, 2.8% of Cable Communications revenue was derived from franchise and other regulatory fees.

(b) Beginning in 2014, Fandango, our movie ticketing and entertainment business that was previously presented in our Cable Networks segment, is now presented in the Filmed Entertainment segment to reflect the change in our management reporting presentation. Due to immateriality, prior period amounts have not been adjusted.

(c) The revenue and operating costs and expenses associated with our broadcast of the 2015 Super Bowl were reported in our Broadcast Television segment. The revenue and operating costs and expenses associated with our broadcast of the 2014 Sochi Olympics were reported in our Cable Networks and Broadcast Television segments.

(d) As disclosed in Note 11, we changed our method of accounting for a contractual obligation that involves an interest in the revenue of certain theme parks. As a result of the change, beginning in the fourth quarter of 2015, amounts payable based on current period revenue are presented in operating costs and expenses. Amounts paid through the third quarter of 2015 were included in other income (expense), net in our consolidated statement of income. For segment reporting purposes, we have adjusted periods prior to the fourth quarter of 2015 to reflect management reporting presentation for this expense on a consistent basis for all periods in the Theme Parks segment, which resulted in an offsetting adjustment in NBCUniversal Eliminations. Therefore, we have reduced our Theme Parks segment operating income before depreciation and amortization and operating income by $63 million, $72 million and $61 million in 2015, 2014 and 2013, respectively, while corresponding amounts have been reflected in NBCUniversal Eliminations to reconcile to consolidated operating income.

(e) NBCUniversal Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(f) Included in Eliminations are transactions that our segments enter into with one another. The most common types of transactions are the following:

• our Cable Networks and Broadcast Television segments generate revenue by selling programming to our Cable Communications segment, which represents a substantial majority of the revenue elimination amount

• our Cable Communications segment generates revenue by selling advertising and by selling the use of satellite feeds to our Cable Networks segment

• our Filmed Entertainment and Broadcast Television segments generate revenue by licensing content to our Cable Networks segment

• our Cable Communications segment receives incentives offered by our Cable Networks segment in connection with its distribution of the Cable Networks’ content that are recorded as a reduction to programming expenses

(g) Revenue from customers located outside of the United States, primarily in Europe and Asia, in 2015, 2014 and 2013 was $5.8 billion, $4.4 billion and $4.8 billion, respectively. No single customer accounted for a significant amount of revenue in any period.

(h) We use operating income (loss) before depreciation and amortization, excluding impairment charges related to fixed and intangible assets and gains or losses from the sale of assets, if any, as the measure of profit or loss for our operating segments. This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital structure or investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss) attributable to Comcast Corporation, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP.

NBCUniversal Media LLC [Member]

Financial Data by Business Segment

Note 17: Financial Data by Business Segment

We present our operations in four reportable business segments: Cable Networks, Broadcast Television, Filmed Entertainment and Theme Parks. Our financial data by reportable business segment is presented in the tables below.

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2015
	Cable Networks^(a)	$	9,628	$	3,499	$	784	$	2,715	$	44	$	28,093
	Broadcast Television^(b)		8,530		780		111		669		117		7,871
	Filmed Entertainment^(a)		7,287		1,234		26		1,208		14		4,255
	Theme Parks^(c)		3,339		1,464		292		1,172		833		14,027
	Headquarters and Other^(d)		14		(625)		326		(951)		378		6,898
	Eliminations^(c)(e)		(336)		6		-		6		-		(454)
Total		$	28,462	$	6,358	$	1,539	$	4,819	$	1,386	$	60,690

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2014
	Cable Networks^(a)(b)	$	9,563	$	3,589	$	748	$	2,841	$	49	$	28,582
	Broadcast Television^(b)		8,542		734		127		607		76		6,806
	Filmed Entertainment^(a)		5,008		711		21		690		11		4,185
	Theme Parks^(c)		2,623		1,096		273		823		671		7,017
	Headquarters and Other^(d)		13		(613)		326		(939)		414		6,467
	Eliminations^(c)(e)		(321)		71		-		71		-		(453)
Total		$	25,428	$	5,588	$	1,495	$	4,093	$	1,221	$	52,604

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
2013
	Cable Networks^(a)	$	9,201	$	3,501	$	734	$	2,767	$	67
	Broadcast Television		7,120		345		98		247		65
	Filmed Entertainment^(a)		5,452		483		15		468		9
	Theme Parks^(c)		2,235		943		300		643		580
	Headquarters and Other^(d)		31		(588)		264		(852)		439
	Eliminations^(c)(e)		(389)		48		-		48		-
Total		$	23,650	$	4,732	$	1,411	$	3,321	$	1,160

Beginning in 2014, Fandango, our movie ticketing and entertainment business that was previously presented in our Cable Networks segment, is now presented in the Filmed Entertainment segment to reflect the change in our management reporting presentation. Due to immateriality, prior period amounts have not been adjusted.
The revenue and operating costs and expenses associated with our broadcast of the 2015 Super Bowl were reported in our Broadcast Television segment. The revenue and operating costs and expenses associated with our broadcast of the 2014 Sochi Olympics were reported in our Cable Networks and Broadcast Television segments.
As disclosed in Note 11, we changed our method of accounting for a contractual obligation that involves an interest in the revenue of certain theme parks. As a result of the change, beginning in the fourth quarter of 2015, amounts payable based on current period revenue are presented in operating costs and expenses. Amounts paid through the third quarter of 2015 were included in other income (expense), net in our consolidated statement of income. For segment reporting purposes, we have adjusted periods prior to the fourth quarter of 2015 to reflect management reporting presentation for this expense on a consistent basis for all periods in the Theme Parks segment, which resulted in an offsetting adjustment in Eliminations. Therefore, we have reduced our Theme Parks segment operating income before depreciation and amortization and operating income by $63 million, $72 million and $61 million in 2015, 2014 and 2013, respectively, while corresponding amounts have been reflected in Eliminations to reconcile to consolidated operating income.
Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and corporate initiatives.
Eliminations are transactions that our segments enter into with one another, which consisted primarily of the licensing of film and television content from our Filmed Entertainment and Broadcast Television segments to our Cable Networks segment.
No single customer accounted for a significant amount of revenue in any period.
We use operating income (loss) before depreciation and amortization, excluding impairment charges related to fixed and intangible assets and gains or losses from the sale of assets, if any, as the measure of profit or loss for our operating segments. This measure eliminates the significant level of noncash amortization expense that results from intangible assets recognized in connection with the joint venture transaction and other business combinations. Additionally, it is unaffected by our capital structure or investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss) attributable to NBCUniversal, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP.
We operate primarily in the United States, but also in select international markets primarily in Europe and Asia. The table below summarizes revenue by geographic location.

Year ended December 31 (in millions)		2015		2014		2013
Revenue:
United States	$	22,663	$	20,995	$	18,887
Foreign	$	5,799	$	4,433	$	4,763

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Quarterly Financial Information

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information

Note 19: Quarterly Financial Information (Unaudited)

(in millions, except per share data)		First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
2015
Revenue	$	17,853	$	18,743	$	18,669	$	19,245	$	74,510
Operating income	$	3,890	$	4,105	$	4,001	$	4,002	$	15,998
Net income attributable to Comcast Corporation	$	2,059	$	2,137	$	1,996	$	1,971	$	8,163
Basic earnings per common share attributable to Comcast Corporation shareholders	$	0.82	$	0.85	$	0.81	$	0.80	$	3.28
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	0.81	$	0.84	$	0.80	$	0.79	$	3.24
Dividends declared per common share	$	0.25	$	0.25	$	0.25	$	0.25	$	1.00
2014
Revenue	$	17,408	$	16,844	$	16,791	$	17,732	$	68,775
Operating income	$	3,568	$	3,804	$	3,745	$	3,787	$	14,904
Net income attributable to Comcast Corporation^(a)	$	1,871	$	1,992	$	2,592	$	1,925	$	8,380
Basic earnings per common share attributable to Comcast Corporation shareholders	$	0.72	$	0.77	$	1.00	$	0.75	$	3.24
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	0.71	$	0.76	$	0.99	$	0.74	$	3.20
Dividends declared per common share	$	0.225	$	0.225	$	0.225	$	0.225	$	0.90

(a) In the third quarter of 2014, net income attributable to Comcast Corporation included $759 million of favorable income tax adjustments resulting from a reduction in our accruals for uncertain tax positions and the related accrued interest on these tax positions. See Note 15 for additional information.

Condensed Consolidating Financial Information

12 Months Ended

Dec. 31, 2015

Condensed Consolidating Financial Information [Abstract]

Condensed Consolidating Financial Information

Note 20: Condensed Consolidating Financial Information

Comcast (“Comcast Parent”), Comcast Cable Communications, LLC (“CCCL Parent”) and NBCUniversal (“NBCUniversal Media Parent”) have fully and unconditionally guaranteed each other’s debt securities. In addition, the Comcast revolving credit facility and the Comcast commercial paper program are also fully and unconditionally guaranteed by NBCUniversal. The Comcast commercial paper program is supported by the Comcast revolving credit facility. The debt securities within the guarantee structure total $44.3 billion, of which $10.7 billion will mature within the next five years.

In October 2015, we merged three of our wholly owned subsidiaries, Comcast MO Group, LLC (“Comcast MO Group”), Comcast Cable Holdings, LLC (“CCH”) and Comcast MO of Delaware, LLC (“Comcast MO of Delaware”), with and into CCCL Parent. Comcast MO Group, CCH and Comcast MO of Delaware were guarantors prior to the merger and were collectively referred to as the “Combined CCHMO Parents.” Accordingly, the financial information for CCCL Parent reflects both the former Combined CCHMO Parents and the CCCL Parent for all periods presented.

Comcast Parent and CCCL Parent also fully and unconditionally guarantee NBCUniversal Enterprise’s $4 billion of senior notes, as well as the NBCUniversal Enterprise revolving credit facility and the associated commercial paper program. NBCUniversal Media Parent does not guarantee the NBCUniversal Enterprise senior notes, credit facility or commercial paper program.

Comcast Parent provides an unconditional subordinated guarantee of the $185 million principal amount currently outstanding of Comcast Holdings’ ZONES due October 2029. Neither CCCL Parent nor NBCUniversal Media Parent guarantee the Comcast Holdings’ ZONES due October 2029. None of Comcast Parent, CCCL Parent nor NBCUniversal Media Parent guarantee the $62 million principal amount currently outstanding of Comcast Holdings’ ZONES due November 2029 or the $3.3 billion of Universal Studios Japan term loans.

Condensed Consolidating Balance Sheet
December 31, 2015 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Assets
	Cash and cash equivalents	$	-	$	-	$	-	$	414	$	1,881	$	-	$	2,295
	Investments		-		-		-		-		106		-		106
	Receivables, net		-		-		-		-		6,896		-		6,896
	Programming rights		-		-		-		-		1,213		-		1,213
	Other current assets		69		-		-		17		1,707		-		1,793
Total current assets			69		-		-		431		11,803		-		12,303
Film and television costs			-		-		-		-		5,855		-		5,855
Investments			33		-		-		430		2,761		-		3,224
Investments in and amounts due from subsidiaries eliminated upon consolidation			87,142		111,241		119,354		42,441		109,598		(469,776)		-
Property and equipment, net			210		-		-		-		33,455		-		33,665
Franchise rights			-		-		-		-		59,364		-		59,364
Goodwill			-		-		-		-		32,945		-		32,945
Other intangible assets, net			12		-		-		-		16,934		-		16,946
Other noncurrent assets, net			1,301		147		-		78		2,114		(1,368)		2,272
Total assets		$	88,767	$	111,388	$	119,354	$	43,380	$	274,829	$	(471,144)	$	166,574

Liabilities and Equity
	Accounts payable and accrued expenses related to trade creditors	$	16	$	-	$	-	$	-	$	6,199	$	-	$	6,215
	Accrued participations and residuals		-		-		-		-		1,572		-		1,572
	Accrued expenses and other current liabilities		1,789		335		290		389		3,961		-		6,764
	Current portion of long-term debt		1,149		-		-		1,005		1,473		-		3,627
Total current liabilities			2,954		335		290		1,394		13,205		-		18,178
Long-term debt, less current portion			31,106		130		2,650		8,211		6,897		-		48,994
Deferred income taxes			-		624		-		66		34,098		(1,222)		33,566
Other noncurrent liabilities			2,438		-		-		1,087		7,258		(146)		10,637
Redeemable noncontrolling interests
	and redeemable subsidiary preferred stock		-		-		-		-		1,221		-		1,221
Equity:
	Common stock		29		-		-		-		-		-		29
	Other shareholders’ equity		52,240		110,299		116,414		32,622		210,441		(469,776)		52,240
Total Comcast Corporation shareholders’ equity			52,269		110,299		116,414		32,622		210,441		(469,776)		52,269
Noncontrolling interests			-		-		-		-		1,709		-		1,709
Total equity			52,269		110,299		116,414		32,622		212,150		(469,776)		53,978
Total liabilities and equity		$	88,767	$	111,388	$	119,354	$	43,380	$	274,829	$	(471,144)	$	166,574

Condensed Consolidating Balance Sheet
December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Assets
	Cash and cash equivalents	$	-	$	-	$	-	$	385	$	3,525	$	-	$	3,910
	Investments		-		-		-		-		602		-		602
	Receivables, net		-		-		-		-		6,321		-		6,321
	Programming rights		-		-		-		-		839		-		839
	Other current assets		267		-		-		41		1,551		-		1,859
Total current assets			267		-		-		426		12,838		-		13,531
Film and television costs			-		-		-		-		5,727		-		5,727
Investments			36		-		-		378		2,721		-		3,135
Investments in and amounts due from subsidiaries eliminated upon consolidation			84,142		103,420		111,870		41,239		98,152		(438,823)		-
Property and equipment, net			199		-		-		-		30,754		-		30,953
Franchise rights			-		-		-		-		59,364		-		59,364
Goodwill			-		-		-		-		27,316		-		27,316
Other intangible assets, net			11		-		-		-		16,969		-		16,980
Other noncurrent assets, net			1,086		145		-		80		1,949		(1,080)		2,180
Total assets		$	85,741	$	103,565	$	111,870	$	42,123	$	255,790	$	(439,903)	$	159,186

Liabilities and Equity
	Accounts payable and accrued expenses related to trade creditors	$	19	$	-	$	1	$	-	$	5,618	$	-	$	5,638
	Accrued participations and residuals		-		-		-		-		1,347		-		1,347
	Accrued expenses and other current liabilities		1,547		283		280		331		3,767		-		6,208
	Current portion of long-term debt		1,650		-		677		1,006		884		-		4,217
Total current liabilities			3,216		283		958		1,337		11,616		-		17,410
Long-term debt, less current portion			27,478		123		2,649		9,206		4,408		-		43,864
Deferred income taxes			-		701		-		67		33,127		(936)		32,959
Other noncurrent liabilities			2,336		-		-		1,143		7,484		(144)		10,819
Redeemable noncontrolling interests
	and redeemable subsidiary preferred stock		-		-		-		-		1,066		-		1,066
Equity:
	Common stock		30		-		-		-		-		-		30
	Other shareholders’ equity		52,681		102,458		108,263		30,370		197,732		(438,823)		52,681
Total Comcast Corporation shareholders’ equity			52,711		102,458		108,263		30,370		197,732		(438,823)		52,711
Noncontrolling interests			-		-		-		-		357		-		357
Total equity			52,711		102,458		108,263		30,370		198,089		(438,823)		53,068
Total liabilities and equity		$	85,741	$	103,565	$	111,870	$	42,123	$	255,790	$	(439,903)	$	159,186

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2015(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	74,510	$	-	$	74,510
	Management fee revenue		1,005		-		977		-		-		(1,982)		-
			1,005		-		977		-		74,510		(1,982)		74,510
Costs and Expenses:
	Programming and production		-		-		-		-		22,550		-		22,550
	Other operating and administrative		760		-		977		922		20,662		(1,982)		21,339
	Advertising, marketing and promotion		-		-		-		-		5,943		-		5,943
	Depreciation		31		-		-		-		6,750		-		6,781
	Amortization		6		-		-		-		1,893		-		1,899
			797		-		977		922		57,798		(1,982)		58,512
Operating income (loss)			208		-		-		(922)		16,712		-		15,998
Other Income (Expense):
	Interest expense		(1,744)		(12)		(270)		(462)		(214)		-		(2,702)
	Investment income (loss), net		6		(1)		-		(19)		95		-		81
	Equity in net income (losses) of
	investees, net		9,159		8,651		8,040		4,852		3,089		(34,116)		(325)
	Other income (expense), net		(3)		-		-		(31)		354		-		320
			7,418		8,638		7,770		4,340		3,324		(34,116)		(2,626)
Income (loss) before income taxes			7,626		8,638		7,770		3,418		20,036		(34,116)		13,372
Income tax (expense) benefit			537		4		94		(4)		(5,590)		-		(4,959)
Net income (loss)			8,163		8,642		7,864		3,414		14,446		(34,116)		8,413
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(250)		-		(250)
Net income (loss) attributable to
	Comcast Corporation	$	8,163	$	8,642	$	7,864	$	3,414	$	14,196	$	(34,116)	$	8,163
Comprehensive income (loss)
	attributable to Comcast Corporation	$	8,135	$	8,625	$	7,864	$	3,361	$	14,192	$	(34,042)	$	8,135

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	68,775	$	-	$	68,775
	Management fee revenue		947		-	-	921	-	-		-		(1,868)		-
			947		-		921		-		68,775		(1,868)		68,775
Costs and Expenses:
	Programming and production		-		-		-		-		20,912		-		20,912
	Other operating and administrative		751		-		921		908		19,142		(1,868)		19,854
	Advertising, marketing and promotion		-		-		-		-		5,086		-		5,086
	Depreciation		34		-		-		-		6,303		-		6,337
	Amortization		6		-		-		-		1,676		-		1,682
			791		-		921		908		53,119		(1,868)		53,871
Operating income (loss)			156		-		-		(908)		15,656		-		14,904
Other Income (Expense):
	Interest expense		(1,621)		(11)		(294)		(479)		(212)		-		(2,617)
	Investment income (loss), net		3		12		-		(7)		288		-		296
	Equity in net income (losses) of
	investees, net		9,330		8,843		8,350		4,523		3,212		(34,161)		97
	Other income (expense), net		-		-		-		(4)		(211)		-		(215)
			7,712		8,844		8,056		4,033		3,077		(34,161)		(2,439)
Income (loss) before income taxes			7,868		8,844		8,056		3,125		18,733		(34,161)		12,465
Income tax (expense) benefit			512		-		103		(10)		(4,478)		-		(3,873)
Net income (loss)			8,380		8,844		8,159		3,115		14,255		(34,161)		8,592
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(212)		-		(212)
Net income (loss) attributable
	to Comcast Corporation	$	8,380	$	8,844	$	8,159	$	3,115	$	14,043	$	(34,161)	$	8,380
Comprehensive income (loss)
	attributable to Comcast Corporation	$	8,178	$	8,807	$	8,163	$	2,972	$	13,980	$	(33,922)	$	8,178

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2013 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	64,657	$	-	$	64,657
	Management fee revenue		897		-		874		-		-		(1,771)		-
			897		-		874		-		64,657		(1,771)		64,657
Costs and Expenses:
	Programming and production		-		-		-		-		19,670		-		19,670
	Other operating and administrative		403		-		874		855		18,214		(1,771)		18,575
	Advertising, marketing and promotion		-		-		-		-		4,978		-		4,978
	Depreciation		30		-		-		-		6,224		-		6,254
	Amortization		5		-		-		-		1,612		-		1,617
			438		-		874		855		50,698		(1,771)		51,094
Operating income (loss)			459		-		-		(855)		13,959		-		13,563
Other Income (Expense):											-
	Interest expense		(1,523)		(11)		(338)		(488)		(214)		-		(2,574)
	Investment income (loss), net		-		(13)		-		3		586		-		576
	Equity in net income (losses) of
	investees, net		7,509		7,540		7,512		3,331		1,882		(27,860)		(86)
	Other income (expense), net		(2)		-		2		(1)		(363)		-		(364)
			5,984		7,516		7,176		2,845		1,891		(27,860)		(2,448)
Income (loss) before income taxes			6,443		7,516		7,176		1,990		15,850		(27,860)		11,115
Income tax (expense) benefit			373		9		117		(22)		(4,457)		-		(3,980)
Net income (loss)			6,816		7,525		7,293		1,968		11,393		(27,860)		7,135
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(319)		-		(319)
Net income (loss) attributable to
	Comcast Corporation	$	6,816	$	7,525	$	7,293	$	1,968	$	11,074	$	(27,860)	$	6,816
Comprehensive income (loss)
	attributable to Comcast Corporation	$	6,883	$	7,521	$	7,277	$	2,017	$	10,969	$	(27,784)	$	6,883

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2015 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(792)	$	48	$	(167)	$	(1,398)	$	21,087	$	-	$	18,778
Investing Activities:
	Net transactions with affiliates		6,559		(48)		840		2,839		(10,190)		-		-
	Capital expenditures		(27)		-		-		-		(8,472)		-		(8,499)
	Cash paid for intangible assets		(6)		-		-		-		(1,364)		-		(1,370)
	Acquisitions and construction of real estate properties		-		-		-		-		(178)		-		(178)
	Acquisitions, net of cash acquired		-		-		-		-		(1,786)		-		(1,786)
	Proceeds from sales of businesses and investments		-		-		-		4		429		-		433
	Purchases of investments		(7)		-		-		(407)		(370)		-		(784)
	Other		7		-		-		(5)		218		-		220
	Net cash provided by (used in) investing activities		6,526		(48)		840		2,431		(21,713)		-		(11,964)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		400		-		-		-		(265)		-		135
	Proceeds from borrowings		5,486		-		-		-		-		-		5,486
	Repurchases and repayments of debt		(2,650)		-		(673)		(1,004)		(51)		-		(4,378)
	Repurchases and retirements of common stock		(6,750)		-		-		-		-		-		(6,750)
	Dividends paid		(2,437)		-		-		-		-		-		(2,437)
	Issuances of common stock		36		-		-		-		-		-		36
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(232)		-		(232)
	Other		181		-		-		-		(470)		-		(289)
	Net cash provided by (used in) financing activities		(5,734)		-		(673)		(1,004)		(1,018)		-		(8,429)
Increase (decrease) in cash and cash equivalents			-		-		-		29		(1,644)		-		(1,615)
Cash and cash equivalents, beginning of year			-		-		-		385		3,525		-		3,910
Cash and cash equivalents, end of year		$	-	$	-	$	-	$	414	$	1,881	$	-	$	2,295

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(354)	$	9	$	(139)	$	(1,299)	$	18,728	$	-	$	16,945
Investing Activities:
	Net transactions with affiliates		4,784		(9)		139		2,247		(7,161)		-		-
	Capital expenditures		(3)		-		-		-		(7,417)		-		(7,420)
	Cash paid for intangible assets		(6)		-		-		-		(1,116)		-		(1,122)
	Acquisitions and construction of real estate properties		-		-		-		-		(43)		-		(43)
	Acquisitions, net of cash acquired		-		-		-		-		(477)		-		(477)
	Proceeds from sales of businesses and investments		-		-		-		8		658		-		666
	Purchases of investments		(19)		-		-		(10)		(162)		-		(191)
	Other		-		-		-		5		(151)		-		(146)
	Net cash provided by (used in) investing activities		4,756		(9)		139		2,250		(15,869)		-		(8,733)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		(1,350)		-		-		-		846		-		(504)
	Proceeds from borrowings		4,180		-		-		-		2		-		4,182
	Repurchases and repayments of debt		(1,000)		-		-		(902)		(1,273)		-		(3,175)
	Repurchases and retirements of common stock		(4,251)		-		-		-		-		-		(4,251)
	Dividends paid		(2,254)		-		-		-		-		-		(2,254)
	Issuances of common stock		35		-		-		-		-		-		35
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(220)		-		(220)
	Other		238		-		-		-		(71)		-		167
	Net cash provided by (used in) financing activities		(4,402)		-		-		(902)		(716)		-		(6,020)
Increase (decrease) in cash and cash equivalents			-		-		-		49		2,143		-		2,192
Cash and cash equivalents, beginning of year			-		-		-		336		1,382		-		1,718
Cash and cash equivalents, end of year		$	-		-		-		385		3,525		-		3,910

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2013(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(600)	$	(3)	$	(245)	$	(1,102)	$	16,110	$	-	$	14,160
Investing Activities:
	Net transactions with affiliates		66		3		2,580		(470)		(2,179)		-		-
	Capital expenditures		(7)		-		-		-		(6,589)		-		(6,596)
	Cash paid for intangible assets		(4)		-		-		-		(1,005)		-		(1,009)
	Acquisitions and construction of real estate properties		-		-		-		-		(1,904)		-		(1,904)
	Acquisitions, net of cash acquired		-		-		-		-		(99)		-		(99)
	Proceeds from sales of businesses and investments		-		-		-		2		1,081		-		1,083
	Purchases of investments		(11)		-		-		(3)		(1,209)		-		(1,223)
	Other		-		-		-		108		126		-		234
	Net cash provided by (used in) investing activities		44		3		2,580		(363)		(11,778)		-		(9,514)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		1,349		-		-		-		(4)		-		1,345
	Proceeds from borrowings		2,933		-		-		-		-		-		2,933
	Repurchases and repayments of debt		-		-		(2,335)		(88)		(21)		-		(2,444)
	Repurchases and retirements of common stock		(2,000)		-		-		-		-		-		(2,000)
	Dividends paid		(1,964)		-		-		-		-		-		(1,964)
	Issuances of common stock		40		-		-		-		-		-		40
	Purchase of NBCUniversal noncontrolling common equity interest		-		-		-		(3,200)		(7,561)		-		(10,761)
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(215)		-		(215)
	Settlement of Station Venture liability		-		-		-		-		(602)		-		(602)
	Other		198		-		-		(40)		(369)		-		(211)
	Net cash provided by (used in) financing activities		556		-		(2,335)		(3,328)		(8,772)		-		(13,879)
Increase (decrease) in cash and cash equivalents			-		-		-		(4,793)		(4,440)		-		(9,233)
Cash and cash equivalents, beginning of year			-		-		-		5,129		5,822		-		10,951
Cash and cash equivalents, end of year		$	-	$	-	$	-	$	336	$	1,382	$	-	$	1,718

Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2015

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Comcast Corporation and Subsidiaries
Schedule II — Valuation and Qualifying Accounts
Year ended December 31, 2015, 2014 and 2013

Year Ended December 31 (in millions)			Balance at Beginning of Year		Additions Charged to Costs and Expenses^(a)		Deductions from Reserves^(a)		Balance at End of Year

2015
	Allowance for doubtful accounts	$	205	$	166	$	145	$	226
	Allowance for returns and customer incentives		359		1,236		1,122		473
	Valuation allowance on deferred tax assets		375		4		37		342
2014
	Allowance for doubtful accounts	$	221	$	162	$	178	$	205
	Allowance for returns and customer incentives		375		932		948		359
	Valuation allowance on deferred tax assets		405		33		63		375
2013
	Allowance for doubtful accounts	$	198	$	317	$	294	$	221
	Allowance for returns and customer incentives		307		811		743		375
	Valuation allowance on deferred tax assets		355		71		21		405

(a) Additions and deductions related to allowance for returns and customer incentives include amounts for distribution on behalf of third parties. Additions and deductions related to allowance for returns and customer incentives for the year ended December 31, 2013 also reflect corrections to change amounts that were previously recorded net.

NBCUniversal Media LLC [Member]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

NBCUniversal Media, LLC
Schedule II — Valuation and Qualifying Accounts
Year ended December 31, 2015, 2014 and 2013

Year Ended December 31 (in millions)			Balance at Beginning of Year		Additions Charged to Costs and Expenses^(a)		Deductions from Reserves^(a)		Balance at End of Year
2015
	Allowance for doubtful accounts	$	60	$	27	$	18	$	69
	Allowance for returns and customer incentives		356		1,233		1,120		469
	Valuation allowance on deferred tax assets		87		4		20		71
2014
	Allowance for doubtful accounts	$	65	$	11	$	16	$	60
	Allowance for returns and customer incentives		372		930		946		356
	Valuation allowance on deferred tax assets		60		33		6		87
2013
	Allowance for doubtful accounts	$	46	$	33	$	14	$	65
	Allowance for returns and customer incentives		307		808		743		372
	Valuation allowance on deferred tax assets		73		8		21		60

Accounting Policies (Policy)	12 Months Ended
Accounting Policies (Policy)	Dec. 31, 2015
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements include all entities in which we have a controlling voting interest and variable interest entities (“VIEs”) required to be consolidated in accordance with generally accepted accounting principles in the United States (“GAAP”).
Foreign Currency Translation	We translate assets and liabilities of our foreign operations where the functional currency is the local currency, primarily the euro, British pound, and Japanese yen, into U.S. dollars at the exchange rate as of the balance sheet date and translate revenue and expenses using average monthly exchange rates. The related translation adjustments are recorded as a component of accumulated other comprehensive income (loss). Any foreign currency transaction gains and losses are included in our consolidated statement of income.
Cash Equivalents	Cash Equivalents The carrying amounts of our cash equivalents approximate their fair values. Our cash equivalents consist primarily of money market funds and U.S. government obligations, as well as commercial paper and certificates of deposit with maturities of three months or less when purchased.
Use of Estimates	Our consolidated financial statements are prepared in accordance with GAAP, which requires us to select accounting policies, including in certain cases industry-specific policies, and make estimates that affect the reported amount of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. Actual results could differ from these estimates. We believe that the judgments and related estimates for the following items are critical in the preparation of our consolidated financial statements: valuation and impairment testing of cable franchise rights (see Note 9) film and television costs (see Note 6) In addition, the following accounting policies are specific to the industries in which we operate: capitalization and amortization of film and television costs (see Note 6) installation revenue and costs for connecting customers to our cable systems (see revenue recognition below and Note 8) Information on our other accounting policies and methods that are used in the preparation of our consolidated financial statements are included, where applicable, in their respective footnotes that follow. Below is a discussion of accounting policies and methods used in our consolidated financial statements that are not presented within other footnotes.
Film And Television Costs	Capitalization of Film and Television Costs We capitalize film and television production costs, including direct costs, production overhead, print costs, development costs and interest. We amortize capitalized film and television production costs, including acquired libraries, and accrue costs associated with participation and residual payments to programming and production expenses. We generally record the amortization and the accrued costs using the individual film forecast computation method, which amortizes such costs in the same ratio as the associated ultimate revenue. Estimates of ultimate revenue and total costs are based on anticipated release patterns, public acceptance and historical results for similar productions. Unamortized film and television costs, including acquired film and television libraries, are stated at the lower of unamortized cost or fair value. We do not capitalize costs related to the distribution of a film in movie theaters or the licensing or sale of a film or television production, which are primarily costs associated with the marketing and distribution of film and television programming. In determining the estimated lives and method of amortization of acquired film and television libraries, we generally use the method and the life that most closely follow the undiscounted cash flows over the estimated life of the asset. Upon the occurrence of an event or a change in circumstance that was known or knowable as of the balance sheet date and that indicates the fair value of a film is less than its unamortized costs, we determine the fair value of the film and record an impairment charge for the amount by which the unamortized capitalized costs exceed the film’s fair value. We enter into cofinancing arrangements with third parties to jointly finance or distribute certain of our film productions. Cofinancing arrangements can take various forms, but in most cases involve the grant of an economic interest in a film to an investor. The number of investors and the terms of these arrangements can vary, although investors generally assume full risk for the portion of the film acquired in these arrangements. We account for the proceeds received from a third-party investor under these arrangements as a reduction to our capitalized film costs. In these arrangements, the investor owns an undivided copyright interest in the film, and therefore in each period we record either a charge or a benefit to programming and production expenses to reflect the estimate of the third-party investor’s interest in the profit or loss of the film. The estimate of the third-party investor’s interest in the profit or loss of a film is determined using the ratio of actual revenue earned to date to the ultimate revenue expected to be recognized over the film’s useful life. We capitalize the costs of programming content that we license but do not own, including rights to multiyear, live-event sports programming, at the earlier of when payments are made for the programming or when the license period begins and the content is available for use. We amortize capitalized programming costs as the associated programs are broadcast. We amortize multiyear, live-event sports programming rights using the ratio of the current period revenue to the estimated ultimate revenue or under the terms of the contract. Acquired programming costs are recorded at the lower of unamortized cost or net realizable value on a program by program, package, channel or daypart basis. A daypart is an aggregation of programs broadcast during a particular time of day or programs of a similar type. Programming acquired by our Cable Networks segment is primarily tested on a channel basis for impairment, whereas programming acquired by our Broadcast Television segment is tested on a daypart basis. If we determine that the estimates of future cash flows are insufficient or if there is no plan to broadcast certain programming, we recognize an impairment charge to programming and production expenses.
Investments	Fair Value Method We classify publicly traded investments that are not accounted for under the equity method as available-for-sale (“AFS”) or trading securities and record them at fair value. For AFS securities, we record unrealized gains or losses resulting from changes in fair value between measurement dates as a component of other comprehensive income (loss), except when we consider declines in value to be other than temporary. For trading securities, we record unrealized gains or losses resulting from changes in fair value between measurement dates as a component of investment income (loss), net. We recognize realized gains and losses associated with our fair value method investments using the specific identification method. We classify the cash flows related to purchases of and proceeds from the sale of trading securities based on the nature of the securities and the purpose for which they were acquired. Equity Method We use the equity method to account for investments in which we have the ability to exercise significant influence over the investee’s operating and financial policies or where we hold significant partnership or LLC interests. Equity method investments are recorded at cost and are adjusted to recognize (1) our proportionate share of the investee’s net income or loss after the date of investment, (2) amortization of the recorded investment that exceeds our share of the book value of the investee’s net assets, (3) additional contributions made and dividends received, and (4) impairments resulting from other-than-temporary declines in fair value. For some investments, we record our share of the investee’s net income or loss one quarter in arrears due to the timing of our receipt of such information. Gains or losses on the sale of equity method investments are recorded to other income (expense), net. If an equity method investee were to issue additional securities that would change our proportionate share of the entity, we would recognize the change, if any, as a gain or loss in our consolidated statement of income. Cost Method We use the cost method to account for investments not accounted for under the fair value method or the equity method. Impairment Testing of Investments We review our investment portfolio each reporting period to determine whether there are identified events or circumstances that would indicate there is a decline in the fair value that would be considered other than temporary. For our nonpublic investments, if there are no identified events or circumstances that would have a significant adverse effect on the fair value of the investment, then the fair value is not estimated. If an investment is deemed to have experienced an other-than-temporary decline below its cost basis, we reduce the carrying amount of the investment to its quoted or estimated fair value, as applicable, and establish a new cost basis for the investment. For our AFS and cost method investments, we record the impairment to investment income (loss), net. For our equity method investments, we record the impairment to other income (expense), net.
Property and Equipment	Property and equipment are stated at cost. We capitalize improvements that extend asset lives and expense repairs and maintenance costs as incurred. We record depreciation using the straight-line method over the asset’s estimated useful life. For assets that are sold or retired, we remove the applicable cost and accumulated depreciation and, unless the gain or loss on disposition is presented separately, we recognize it as a component of depreciation expense. In accordance with accounting guidance related to cable television companies, we capitalize the costs associated with the construction of and improvements to our cable transmission and distribution facilities, costs associated with acquiring and deploying new customer premise equipment, and costs associated with installation of our services. Costs capitalized include all direct costs for labor and materials, as well as various indirect costs. All costs incurred in connection with subsequent disconnects and reconnects are expensed as they are incurred. We evaluate the recoverability of our property and equipment whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of depreciation expense.
Goodwill and Intangible Assets	We assess the recoverability of our goodwill annually, or more frequently whenever events or substantive changes in circumstances indicate that the carrying amount of a reporting unit may exceed its fair value. We test goodwill for impairment at the reporting unit level. To determine our reporting units, we evaluate the components one level below the segment level and we aggregate the components if they have similar economic characteristics. As a result of this assessment, our reporting units are the same as our five reportable segments. We evaluate the determination of our reporting units used to test for impairment periodically or whenever events or substantive changes in circumstances occur. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. The quantitative assessment considers if the carrying amount of a reporting unit exceeds its fair value, in which case an impairment charge is recorded to the extent the carrying amount of the reporting unit’s goodwill exceeds its implied fair value. Unless presented separately, the impairment charge is included as a component of amortization expense. Indefinite-Lived Intangible Assets Indefinite-lived intangible assets consist primarily of our cable franchise rights, as well as trade names and FCC licenses. Our cable franchise rights represent the values we attributed to agreements with state and local authorities that allow access to homes and businesses in cable service areas acquired in business combinations. We do not amortize our cable franchise rights because we have determined that they meet the definition of indefinite-lived intangible assets since there are no legal, regulatory, contractual, competitive, economic or other factors which limit the period over which these rights will contribute to our cash flows. We reassess this determination periodically or whenever events or substantive changes in circumstances occur. Costs we incur in negotiating and renewing cable franchise agreements are included in other intangible assets and are generally amortized on a straight-line basis over the term of the franchise agreement. We assess the recoverability of our cable franchise rights and other indefinite-lived intangible assets annually, or more frequently whenever events or substantive changes in circumstances indicate that the assets might be impaired. Our three Cable Communications divisions represent the unit of account we use to test for impairment for our cable franchise rights. We evaluate the unit of account used to test for impairment of our cable franchise rights and other indefinite-lived intangible assets periodically or whenever events or substantive changes in circumstances occur to ensure impairment testing is performed at an appropriate level. The assessment of recoverability may first consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. When performing a quantitative assessment, we estimate the fair value of our cable franchise rights and other indefinite-lived intangible assets primarily based on a discounted cash flow analysis that involves significant judgment. When analyzing the fair values indicated under the discounted cash flow models, we also consider multiples of operating income before depreciation and amortization generated by the underlying assets, current market transactions, and profitability information. If the fair value of our cable franchise rights or other indefinite-lived intangible assets were less than the carrying amount, we would recognize an impairment charge for the difference between the estimated fair value and the carrying value of the assets. Unless presented separately, the impairment charge is included as a component of amortization expense. We did not recognize any material impairment charges in any of the periods presented. Finite-Lived Intangible Assets Finite-lived intangible assets are subject to amortization and consist primarily of customer relationships acquired in business combinations, software, cable franchise renewal costs, contractual operating rights and intellectual property rights. Our finite-lived intangible assets are amortized primarily on a straight-line basis over their estimated useful life or the term of the associated agreement. We capitalize direct development costs associated with internal-use software, including external direct costs of material and services and payroll costs for employees devoting time to these software projects. We also capitalize costs associated with the purchase of software licenses. We include these costs in other intangible assets and generally amortize them on a straight-line basis over a period not to exceed five years. We expense maintenance and training costs, as well as costs incurred during the preliminary stage of a project, as they are incurred. We capitalize initial operating system software costs and amortize them over the life of the associated hardware. We evaluate the recoverability of our finite-lived intangible assets whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of amortization expense.
Asset Retirement Obligations	Asset Retirement Obligations Certain of our cable franchise agreements and lease agreements contain provisions requiring us to restore facilities or remove property in the event that the franchise or lease agreement is not renewed. We expect to continually renew our cable franchise agreements and therefore cannot reasonably estimate any liabilities associated with such agreements. A remote possibility exists that franchise agreements could be terminated unexpectedly, which could result in us incurring significant expense in complying with restoration or removal provisions. We do not have any significant liabilities related to asset retirements recorded in our consolidated financial statements.
Revenue Recognition	Revenue Recognition Cable Communications Segment Our Cable Communications segment generates revenue primarily from subscriptions to our video, high-speed Internet and voice services (“cable services”) and from the sale of advertising. We recognize revenue from cable services as each service is provided. Customers are typically billed in advance on a monthly basis based on the services and features they receive and the type of equipment they use. Since installation revenue obtained from the connection of customers to our cable systems is less than the related direct selling costs, we recognize revenue as connections are completed. We manage credit risk by screening applicants through the use of internal customer information, identification verification tools and credit bureau data. If a customer’s account is delinquent, various measures are used to collect outstanding amounts, including termination of the customer’s cable services. As part of our distribution agreements with cable networks, we generally receive an allocation of scheduled advertising time on cable networks that our Spotlight business sells to local, regional and national advertisers. We recognize advertising revenue when the advertising is aired or viewed. In most cases, the available advertising units are sold by our sales force. In some cases, we work with representation firms as an extension of our sales force to sell a portion of the advertising units allocated to us. We also represent the advertising sales efforts of other multichannel video providers in some markets. Since we are acting as the principal in these arrangements, we record the advertising that is sold in revenue and the fees paid to representation firms and multichannel video providers in other operating and administrative expenses. Revenue earned from other sources, such as our home security and automation services, is recognized when services are provided or events occur. Under the terms of our cable franchise agreements, we are generally required to pay to the cable franchising authority an amount based on our gross video revenue. We normally pass these fees through to our cable services customers and classify the fees as a component of revenue with the corresponding costs included in other operating and administrative expenses. Cable Networks and Broadcast Television Segments Our Cable Networks segment generates revenue primarily from the distribution of our cable network programming to multichannel video providers, from the sale of advertising on our cable networks and related digital media properties, from the licensing of our owned programming through various distribution platforms, from the sale of our owned programming through digital distribution services such as iTunes, and from the programming our cable production studio sells to third-party networks and subscription video on demand services. Our Broadcast Television segment generates revenue primarily from the sale of advertising on our broadcast networks, owned local broadcast television stations and related digital media properties, from the licensing of our owned programming through various distribution platforms, including to cable and broadcast networks, from the fees received under retransmission consent agreements and from the programming our broadcast television production studio sells to third-party networks and subscription video on demand services. We recognize revenue from distributors as programming is provided, generally under multiyear distribution agreements. From time to time, the distribution agreements expire while programming continues to be provided to the distributor based on interim arrangements while the parties negotiate new contract terms. Revenue recognition is generally limited to current payments being made by the distributor, typically under the prior contract terms, until a new contract is negotiated, sometimes with effective dates that affect prior periods. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. Advertising revenue for our Cable Networks and Broadcast Television segments is recognized in the period in which commercials are aired or viewed. In some instances, we guarantee audience ratings for the commercials. To the extent there is a shortfall in the ratings that were guaranteed, a portion of the revenue is deferred until the shortfall is settled, primarily by providing additional advertising units. We recognize revenue from the licensing of our owned programming and programming produced by our studios for third parties when the content is available for use by the licensee, and when certain other conditions are met. When license fees include advertising time, we recognize the component of revenue associated with the advertisements when they are aired or viewed. Filmed Entertainment Segment Our Filmed Entertainment segment generates revenue primarily from the worldwide distribution of our produced and acquired films for exhibition in movie theaters, from the licensing of our owned and acquired films through various distribution platforms, and from the sale of our owned and acquired films on standard-definition video discs and Blu-ray discs (together, “DVDs”) and through digital distribution services. Our Filmed Entertainment segment also generates revenue from producing and licensing live stage plays, from the distribution of filmed entertainment produced by third parties, and from Fandango, our movie ticketing and entertainment business. We recognize revenue from the distribution of films to movie theaters when the films are exhibited. We recognize revenue from the licensing of a film when the film is available for use by the licensee, and when certain other conditions are met. We recognize revenue from DVD sales, net of estimated returns and customer incentives, on the date that DVDs are delivered to and made available for sale by retailers. Theme Parks Segment Our Theme Parks segment generates revenue primarily from ticket sales and guest spending at our Universal theme parks in Orlando, Florida; Hollywood, California; and, as of November 2015, Osaka, Japan, as well as from licensing and other fees. We recognize revenue from advance theme park ticket sales when the tickets are used. For annual passes, we recognize revenue on a straight-line basis over the period following the activation date.
Cable Communications Programming Expenses	Cable Communications Programming Expenses Cable Communications programming expenses are the fees we pay to license the programming we distribute to our video customers. Programming is generally acquired under multiyear distribution agreements, with rates typically based on the number of customers that receive the programming, channel positioning and the extent of distribution. From time to time, these contracts expire and programming continues to be provided under interim arrangements while the parties negotiate new contract terms, sometimes with effective dates that affect prior periods. While payments are typically made under the prior contract’s terms, the amount of programming expenses recorded during these interim arrangements is based on our estimates of the ultimate contract terms expected to be negotiated. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. When our Cable Communications segment receives incentives from cable networks for the licensing of their programming, we defer a portion of these incentives, which are included in other current and noncurrent liabilities, and recognize them over the term of the contract as a reduction to programming expenses.
Advertising Expenses	Advertising Expenses Advertising costs are expensed as incurred.
Share-Based Compensation	As of December 31, 2015, substantially all of our stock options outstanding were net settled stock options. Net settled stock options, as opposed to stock options exercised with a cash payment, result in fewer shares being issued and no cash proceeds being received by us when the options are exercised. Our share-based compensation primarily consists of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Awards generally vest over a period of 5 years and in the case of stock options, have a 10 year term. Additionally, through our employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions. The cost associated with our share-based compensation is based on an award’s estimated fair value at the date of grant and is recognized over the period in which any related services are provided. RSUs are valued based on the closing price of our common stock on the date of grant and are discounted for the lack of dividends, if any, during the vesting period. We use the Black-Scholes option pricing model to estimate the fair value of stock option awards. The table below presents the weighted-average fair value on the date of grant of RSUs and stock options awarded under our various plans and the related weighted-average valuation assumptions.
Postretirement and Pension Benefits	All of our postretirement benefit plans are unfunded and substantially all of our postretirement benefit obligations are recorded to noncurrent liabilities. The expense we recognize for our postretirement benefit plans is determined using certain assumptions, including the discount rate. NBCUniversal NBCUniversal sponsors various qualified and nonqualified defined benefit plans for domestic employees for which future benefits have been frozen since the beginning of 2013, therefore we did not recognize service costs related to our pension plans for the periods presented. The expense we recognize for our defined benefit plans is determined using certain assumptions, including the discount rate and the expected long-term rate of return on plan assets. We recognize the funded or unfunded status of our defined benefit plans as an asset or liability in our consolidated balance sheet and recognize changes in the funded status in the year in which the changes occur in accumulated other comprehensive income (loss). In addition to the defined benefit plans it sponsors, NBCUniversal is also obligated to reimburse GE for future benefit payments to those participants who were vested in the supplemental pension plan sponsored by GE at the time of the NBCUniversal transaction in 2011.
Income Taxes	We base our provision for income taxes on our current period income, changes in our deferred income tax assets and liabilities, income tax rates, changes in estimates of our uncertain tax positions, and tax planning opportunities available in the jurisdictions in which we operate. We recognize deferred tax assets and liabilities when there are temporary differences between the financial reporting basis and tax basis of our assets and liabilities and for the expected benefits of using net operating loss carryforwards. When a change in the tax rate or tax law has an impact on deferred taxes, we apply the change based on the years in which the temporary differences are expected to reverse. We record the change in our consolidated financial statements in the period of enactment. The determination of the income tax consequences of a business combination includes identifying the tax basis of assets and liabilities acquired and any contingencies associated with uncertain tax positions assumed or resulting from the business combination. Deferred tax assets and liabilities related to temporary differences of an acquired entity are recorded as of the date of the business combination and are based on our estimate of the ultimate tax basis that will be accepted by the various tax authorities. We record liabilities for contingencies associated with prior tax returns filed by the acquired entity based on criteria set forth in the appropriate accounting guidance. We adjust the deferred tax accounts and the liabilities periodically to reflect any revised estimated tax basis and any estimated settlements with the various tax authorities. The effects of these adjustments are recorded to income tax expense. From time to time, we engage in transactions in which the tax consequences may be subject to uncertainty. In these cases, we evaluate our tax positions using the recognition threshold and the measurement attribute in accordance with the accounting guidance related to uncertain tax positions. Examples of these transactions include business acquisitions and dispositions, including consideration paid or received in connection with these transactions, certain financing transactions, and the allocation of income among state and local tax jurisdictions. Significant judgment is required in assessing and estimating the tax consequences of these transactions. We determine whether it is more likely than not that a tax position will be sustained on examination, including the resolution of any related appeals or litigation processes, based on the technical merits of the position. A tax position that meets the more-likely-than-not recognition threshold is measured to determine the amount of benefit to be recognized in our consolidated financial statements. We classify interest and penalties, if any, associated with our uncertain tax positions as a component of income tax expense.
Derivative Financial Instruments	Derivative Financial Instruments We use derivative financial instruments to manage our exposure to the risks associated with fluctuations in interest rates, foreign exchange rates and equity prices. Our objective is to manage the financial and operational exposure arising from these risks by offsetting gains and losses on the underlying exposures with gains and losses on the derivatives used to economically hedge them. Our derivative financial instruments are recorded in our consolidated balance sheet at fair value. The impact of our derivative financial instruments on our consolidated financial statements was not material for all periods presented. The derivative component of the prepaid forward sale agreements were equity derivative financial instruments embedded in the related contracts, which we used to manage our exposure to and benefits from price fluctuations in the common stock of the related investments. For these derivative financial instruments, we separated the derivative component from the host contract and recorded in each period the change in its value to investment income (loss), net.
Earnings Per Share Policy	Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Our potentially dilutive securities include potential common shares related to our stock options and our restricted share units (“RSUs”). Diluted EPS excludes the impact of potential common shares related to our stock options in periods in which the combination of the option exercise price and the associated unrecognized compensation expense is greater than the average market price of our common stock. The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material for 2015, 2014 and 2013.
Fair Value Of Financial Instruments	The accounting guidance related to financial assets and financial liabilities (“financial instruments”) establishes a hierarchy that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach and cost approach). The levels of the hierarchy are described below. Level 1: Consists of financial instruments whose values are based on quoted market prices for identical financial instruments in an active market. Level 2: Consists of financial instruments that are valued using models or other valuation methodologies. These models use inputs that are observable either directly or indirectly. Level 2 inputs include (1) quoted prices for similar assets or liabilities in active markets, (2) quoted prices for identical or similar assets or liabilities in markets that are not active, (3) pricing models whose inputs are observable for substantially the full term of the financial instrument and (4) pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument. Level 3: Consists of financial instruments whose values are determined using pricing models that use significant inputs that are primarily unobservable, discounted cash flow methodologies or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of financial instruments and their classification within the fair value hierarchy. Financial instruments are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented. Our financial instruments that are accounted for at fair value on a recurring basis are presented in the table below.
NBCUniversal Media LLC [Member]
Basis of Presentation	The accompanying consolidated financial statements include all entities in which we have a controlling voting interest and variable interest entities (“VIEs”) required to be consolidated in accordance with generally accepted accounting principles in the United States (“GAAP”). Transactions between NBCUniversal and both Comcast and Comcast’s consolidated subsidiaries are reflected in these consolidated financial statements and disclosed as related party transactions when material.
Foreign Currency Translation	We translate assets and liabilities of our foreign operations where the functional currency is the local currency, primarily the euro, British pound, and Japanese yen, into U.S. dollars at the exchange rate as of the balance sheet date and translate revenue and expenses using average monthly exchange rates. The related translation adjustments are recorded as a component of accumulated other comprehensive income (loss). Any foreign currency transaction gains and losses are included in our consolidated statement of income.
Cash Equivalents	Cash Equivalents The carrying amounts of our cash equivalents approximate their fair values. Our cash equivalents consist primarily of money market funds and U.S. government obligations, as well as commercial paper and certificates of deposit with maturities of three months or less when purchased.
Use of Estimates	Our consolidated financial statements are prepared in accordance with GAAP, which requires us to select accounting policies, including in certain cases industry-specific policies, and make estimates that affect the reported amount of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. Actual results could differ from these estimates. We believe that the judgments and related estimates for the following items are critical in the preparation of our consolidated financial statements: revenue recognition (see below) film and television costs (see Note 6) goodwill and intangible assets (see Note 9) In addition, the following accounting policies are specific to the industries in which we operate: capitalization and amortization of film and television costs (see Note 6) Information on our other accounting policies and methods that are used in the preparation of our consolidated financial statements are included, where applicable, in their respective footnotes that follow. Below is a discussion of accounting policies and methods used in our consolidated financial statements that are not presented within other footnotes.
Film And Television Costs	Capitalization of Film and Television Costs We capitalize film and television production costs, including direct costs, production overhead, print costs, development costs and interest. We amortize capitalized film and television production costs, including acquired libraries, and accrue costs associated with participation and residual payments to programming and production expenses. We generally record the amortization and the accrued costs using the individual film forecast computation method, which amortizes such costs in the same ratio as the associated ultimate revenue. Estimates of ultimate revenue and total costs are based on anticipated release patterns, public acceptance and historical results for similar productions. Unamortized film and television costs, including acquired film and television libraries, are stated at the lower of unamortized cost or fair value. We do not capitalize costs related to the distribution of a film in movie theaters or the licensing or sale of a film or television production, which are primarily costs associated with the marketing and distribution of film and television programming. In determining the estimated lives and method of amortization of acquired film and television libraries, we generally use the method and the life that most closely follow the undiscounted cash flows over the estimated life of the asset. Upon the occurrence of an event or a change in circumstance that was known or knowable as of the balance sheet date and that indicates the fair value of a film is less than its unamortized costs, we determine the fair value of the film and record an impairment charge for the amount by which the unamortized capitalized costs exceed the film’s fair value. We enter into cofinancing arrangements with third parties to jointly finance or distribute certain of our film productions. Cofinancing arrangements can take various forms, but in most cases involve the grant of an economic interest in a film to an investor. The number of investors and the terms of these arrangements can vary, although investors generally assume full risk for the portion of the film acquired in these arrangements. We account for the proceeds received from a third-party investor under these arrangements as a reduction to our capitalized film costs. In these arrangements, the investor owns an undivided copyright interest in the film, and therefore in each period we record either a charge or a benefit to programming and production expenses to reflect the estimate of the third-party investor’s interest in the profit or loss of the film. The estimate of the third-party investor’s interest in the profit or loss of a film is determined using the ratio of actual revenue earned to date to the ultimate revenue expected to be recognized over the film’s useful life. We capitalize the costs of programming content that we license but do not own, including rights to multiyear, live-event sports programming, at the earlier of when payments are made for the programming or when the license period begins and the content is available for use. We amortize capitalized programming costs as the associated programs are broadcast. We amortize multiyear, live-event sports programming rights using the ratio of the current period revenue to the estimated ultimate revenue or under the terms of the contract. Acquired programming costs are recorded at the lower of unamortized cost or net realizable value on a program by program, package, channel or daypart basis. A daypart is an aggregation of programs broadcast during a particular time of day or programs of a similar type. Programming acquired by our Cable Networks segment is primarily tested on a channel basis for impairment, whereas programming acquired by our Broadcast Television segment is tested on a daypart basis. If we determine that the estimates of future cash flows are insufficient or if there is no plan to broadcast certain programming, we recognize an impairment charge to programming and production expenses.
Investments	Equity Method We use the equity method to account for investments in which we have the ability to exercise significant influence over the investee’s operating and financial policies or where we hold significant partnership or LLC interests. Equity method investments are recorded at cost and are adjusted to recognize (1) our proportionate share of the investee’s net income or loss after the date of investment, (2) amortization of the recorded investment that exceeds our share of the book value of the investee’s net assets, (3) additional contributions made and dividends received, and (4) impairments resulting from other-than-temporary declines in fair value. Gains or losses on the sale of equity method investments are recorded to other income (expense), net. If an equity method investee were to issue additional securities that would change our proportionate share of the entity, we would recognize the change, if any, as a gain or loss in our consolidated statement of income. Cost Method We use the cost method to account for investments not accounted for under the fair value method or the equity method. Impairment Testing of Investments We review our investment portfolio each reporting period to determine whether there are identified events or circumstances that would indicate there is a decline in the fair value that would be considered other than temporary. For our nonpublic investments, if there are no identified events or circumstances that would have a significant adverse effect on the fair value of the investment, then the fair value is not estimated. If an investment is deemed to have experienced an other-than-temporary decline below its cost basis, we reduce the carrying amount of the investment to its quoted or estimated fair value, as applicable, and establish a new cost basis for the investment. For our available-for-sale securities and cost method investments, we record the impairment to investment income (loss), net. For our equity method investments, we record the impairment to other income (expense), net.
Property and Equipment	Property and equipment are stated at cost. We capitalize improvements that extend asset lives and expense repairs and maintenance costs as incurred. We record depreciation using the straight-line method over the asset’s estimated useful life. For assets that are sold or retired, we remove the applicable cost and accumulated depreciation and, unless the gain or loss on disposition is presented separately, we recognize it as a component of depreciation expense. We evaluate the recoverability of our property and equipment whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of depreciation expense.
Goodwill and Intangible Assets	We assess the recoverability of our goodwill annually, or more frequently whenever events or substantive changes in circumstances indicate that the carrying amount of a reporting unit may exceed its fair value. We test goodwill for impairment at the reporting unit level. To determine our reporting units, we evaluate the components one level below the segment level and we aggregate the components if they have similar economic characteristics. As a result of this assessment, our reporting units are the same as our four reportable segments. We evaluate the determination of our reporting units used to test for impairment periodically or whenever events or substantive changes in circumstances occur. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. The quantitative assessment considers if the carrying amount of a reporting unit exceeds its fair value, in which case an impairment charge is recorded to the extent the carrying amount of the reporting unit’s goodwill exceeds its implied fair value. Unless presented separately, the impairment charge is included as a component of amortization expense. Indefinite-Lived Intangible Assets Indefinite-lived intangible assets consist of trade names and FCC licenses. We assess the recoverability of our indefinite-lived intangible assets annually, or more frequently whenever events or substantive changes in circumstances indicate that the assets might be impaired. We evaluate the unit of account used to test for impairment of our indefinite-lived intangible assets periodically or whenever events or substantive changes in circumstances occur to ensure impairment testing is performed at an appropriate level. The assessment of recoverability may first consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount. A quantitative assessment is performed if the qualitative assessment results in a more-likely-than-not determination or if a qualitative assessment is not performed. When performing a quantitative assessment, we estimate the fair value of our indefinite-lived intangible assets primarily based on a discounted cash flow analysis that involves significant judgment. When analyzing the fair values indicated under the discounted cash flow models, we also consider multiples of operating income before depreciation and amortization generated by the underlying assets, current market transactions, and profitability information. If the fair value of our indefinite-lived intangible assets were less than the carrying amount, we would recognize an impairment charge for the difference between the estimated fair value and the carrying value of the assets. Unless presented separately, the impairment charge is included as a component of amortization expense. We did not recognize any material impairment charges in any of the periods presented. Finite-Lived Intangible Assets Finite-lived intangible assets are subject to amortization and consist primarily of customer relationships acquired in business combinations, intellectual property rights and software. Our finite-lived intangible assets are amortized primarily on a straight-line basis over their estimated useful life or the term of the associated agreement. We capitalize direct development costs associated with internal-use software, including external direct costs of material and services and payroll costs for employees devoting time to these software projects. We also capitalize costs associated with the purchase of software licenses. We include these costs in intangible assets and generally amortize them on a straight-line basis over a period not to exceed five years. We expense maintenance and training costs, as well as costs incurred during the preliminary stage of a project, as they are incurred. We capitalize initial operating system software costs and amortize them over the life of the associated hardware. We evaluate the recoverability of our finite-lived intangible assets whenever events or substantive changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is based on the cash flows generated by the underlying asset groups, including estimated future operating results, trends or other determinants of fair value. If the total of the expected future undiscounted cash flows were less than the carrying amount of the asset group, we would recognize an impairment charge to the extent the carrying amount of the asset group exceeded its estimated fair value. Unless presented separately, the impairment charge is included as a component of amortization expense.
Revenue Recognition	Revenue Recognition Cable Networks and Broadcast Television Segments Our Cable Networks segment generates revenue primarily from the distribution of our cable network programming to multichannel video providers, from the sale of advertising on our cable networks and related digital media properties, from the licensing of our owned programming through various distribution platforms, from the sale of our owned programming through digital distribution services such as iTunes, and from the programming our cable production studio sells to third-party networks and subscription video on demand services. Our Broadcast Television segment generates revenue primarily from the sale of advertising on our broadcast networks, owned local broadcast television stations and related digital media properties, from the licensing of our owned programming through various distribution platforms, including to cable and broadcast networks, from the fees received under retransmission consent agreements and from the programming our broadcast television production studio sells to third-party networks and subscription video on demand services. We recognize revenue from distributors as programming is provided, generally under multiyear distribution agreements. From time to time, the distribution agreements expire while programming continues to be provided to the distributor based on interim arrangements while the parties negotiate new contract terms. Revenue recognition is generally limited to current payments being made by the distributor, typically under the prior contract terms, until a new contract is negotiated, sometimes with effective dates that affect prior periods. Differences between actual amounts determined upon resolution of negotiations and amounts recorded during these interim arrangements are recorded in the period of resolution. Advertising revenue for our Cable Networks and Broadcast Television segments is recognized in the period in which commercials are aired or viewed. In some instances, we guarantee audience ratings for the commercials. To the extent there is a shortfall in the ratings that were guaranteed, a portion of the revenue is deferred until the shortfall is settled, primarily by providing additional advertising units. We recognize revenue from the licensing of our owned programming and programming produced by our studios for third parties when the content is available for use by the licensee, and when certain other conditions are met. When license fees include advertising time, we recognize the component of revenue associated with the advertisements when they are aired or viewed. Filmed Entertainment Segment Our Filmed Entertainment segment generates revenue primarily from the worldwide distribution of our produced and acquired films for exhibition in movie theaters, from the licensing of our owned and acquired films through various distribution platforms, and from the sale of our owned and acquired films on standard-definition video discs and Blu-ray discs (together, “DVDs”) and through digital distribution services. Our Filmed Entertainment segment also generates revenue from producing and licensing live stage plays, from the distribution of filmed entertainment produced by third parties, and from Fandango, our movie ticketing and entertainment business. We recognize revenue from the distribution of films to movie theaters when the films are exhibited. We recognize revenue from the licensing of a film when the film is available for use by the licensee, and when certain other conditions are met. We recognize revenue from DVD sales, net of estimated returns and customer incentives, on the date that DVDs are delivered to and made available for sale by retailers. Theme Parks Segment Our Theme Parks segment generates revenue primarily from ticket sales and guest spending at our Universal theme parks in Orlando, Florida; Hollywood, California; and, as of November 2015, Osaka, Japan, as well as from licensing and other fees. We recognize revenue from advance theme park ticket sales when the tickets are used. For annual passes, we recognize revenue on a straight-line basis over the period following the activation date.
Advertising Expenses	Advertising Expenses Advertising costs are expensed as incurred.
Share-Based Compensation	Comcast maintains share-based compensation plans that primarily consist of awards of RSUs and stock options to certain employees and directors as part of its approach to long-term incentive compensation. Awards generally vest over a period of 5 years and in the case of stock options, have a 10 year term. Additionally, through its employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions. Certain of our employees participate in these plans and the expense associated with their participation is settled in cash with Comcast. The cost associated with Comcast’s share-based compensation is based on an award’s estimated fair value at the date of grant and is recognized over the period in which any related services are provided. RSUs are valued based on the closing price of Comcast common stock on the date of grant and are discounted for the lack of dividends, if any, during the vesting period. Comcast uses the Black-Scholes option pricing model to estimate the fair value of stock option awards.
Postretirement and Pension Benefits	All of our postretirement benefit plans are unfunded and substantially all of our postretirement benefit obligations are recorded to noncurrent liabilities. The expense we recognize for our postretirement benefit plans is determined using certain assumptions, including the discount rate. Pension Plans We sponsor various qualified and nonqualified defined benefit plans for domestic employees for which future benefits have been frozen since the beginning of 2013, therefore we did not recognize service costs related to our pension plans for the periods presented. The expense we recognize for our defined benefit plans is determined using certain assumptions, including the discount rate and the expected long-term rate of return on plan assets. We recognize the funded or unfunded status of our defined benefit plans as an asset or liability in our consolidated balance sheet and recognize changes in the funded status in the year in which the changes occur in accumulated other comprehensive income (loss). In addition to the defined benefit plans we sponsor, we are also obligated to reimburse GE for future benefit payments to those participants who were vested in the supplemental pension plan sponsored by GE at the time of the joint venture transaction.
Derivative Financial Instruments	Derivative Financial Instruments We use derivative financial instruments to manage our exposure to the risks associated with fluctuations in foreign exchange rates and interest rates. Our objective is to manage the financial and operational exposure arising from these risks by offsetting gains and losses on the underlying exposures with gains and losses on the derivatives used to economically hedge them. Our derivative financial instruments are recorded in our consolidated balance sheet at fair value. The impact of our derivative financial instruments on our consolidated financial statements was not material for all periods presented.
Fair Value Of Financial Instruments	The accounting guidance related to financial assets and financial liabilities (“financial instruments”) establishes a hierarchy that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach and cost approach). Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of financial instruments and their classification within the fair value hierarchy. Our financial instruments that are accounted for at fair value on a recurring basis were not material for all periods presented

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share

Computation of diluted EPS

Computation of Diluted EPS
			2015					2014					2013
Year ended December 31 (in millions, except per share data)			Net Income Attributable to Comcast Corporation	Shares		Per Share Amount		Net Income Attributable to Comcast Corporation	Shares		Per Share Amount		Net Income Attributable to Comcast Corporation	Shares		Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders		$	8,163	2,486	$	3.28	$	8,380	2,583	$	3.24	$	6,816	2,625	$	2.60
Effect of dilutive securities:
	Assumed exercise or issuance of shares relating to stock plans			32					37					40
Diluted EPS attributable to Comcast
	Corporation shareholders	$	8,163	2,518	$	3.24	$	8,380	2,620	$	3.20	$	6,816	2,665	$	2.56

Significant Transactions (Tables)

12 Months Ended

Dec. 31, 2015

Preliminary Allocation of Purchase Price

Preliminary Allocation of Purchase Price
(in millions)
Property and equipment (see Note 8)	$	642
Intangible assets (see Note 9)		57
Working capital		(24)
Debt (see Note 10)		(3,271)
Other noncurrent assets and liabilities		162
Identifiable net assets (liabilities) acquired		(2,434)
Noncontrolling interest		(1,440)
Goodwill (see Note 9)		5,373
Cash consideration transferred	$	1,499

Unaudited Pro Forma Information

Year ended December 31 (in millions except per share amounts)		2015		2014
Revenue	$	75,563	$	69,860
Net income	$	8,640	$	8,758
Net income attributable to Comcast Corporation	$	8,278	$	8,463
Basic earnings per common share attributable to Comcast Corporation shareholders	$	3.33	$	3.28
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	3.29	$	3.23

NBCUniversal Media LLC [Member]

Preliminary Allocation of Purchase Price

Preliminary Allocation of Purchase Price
(in millions)
Property and equipment (see Note 8)	$	642
Intangible assets (see Note 9)		57
Working capital		(24)
Debt (see Note 10)		(3,271)
Other noncurrent assets and liabilities and other		162
Identifiable net assets (liabilities) acquired		(2,434)
Noncontrolling interest		(1,440)
Goodwill (see Note 9)		5,373
Cash consideration transferred	$	1,499

Unaudited Pro Forma Information

Year ended December 31 (in millions)		2015		2014
Revenue	$	29,514	$	26,513
Net income	$	3,851	$	3,463
Net income attributable to NBCUniversal	$	3,529	$	3,198

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2015

NBCUniversal Media LLC [Member]

Consolidated Balance Sheet

December 31 (in millions)		2015		2014
Transactions with Comcast and Consolidated Subsidiaries
	Receivables, net	$	239	$	229
	Accounts payable and accrued expenses related to trade creditors	$	68	$	47
	Accrued expenses and other current liabilities	$	51	$	8
	Note payable to Comcast	$	1,750	$	865
	Other noncurrent liabilities	$	383	$	383

Consolidated Statement of Income

Year ended December 31 (in millions)			2015		2014		2013
Transactions with Comcast and Consolidated Subsidiaries
	Revenue	$	1,349	$	1,315	$	1,262
	Operating costs and expenses	$	(246)	$	(162)	$	(190)
	Other income (expense)	$	(37)	$	(43)	$	-

Film and Television Costs (Tables)

12 Months Ended

Dec. 31, 2015

Film and Television Costs

December 31 (in millions)			2015		2014
Film Costs:
	Released, less amortization	$	1,275	$	1,371
	Completed, not released		226		71
	In production and in development		907		1,189
			2,408		2,631
Television Costs:
	Released, less amortization		1,573		1,273
	In production and in development		737		505
			2,310		1,778
Programming rights, less amortization			2,350		2,157
			7,068		6,566
Less: Current portion of programming rights			1,213		839
Film and television costs		$	5,855	$	5,727

NBCUniversal Media LLC [Member]

Film and Television Costs

December 31 (in millions)			2015		2014
Film Costs:
	Released, less amortization	$	1,275	$	1,371
	Completed, not released		226		71
	In production and in development		907		1,189
			2,408		2,631
Television Costs:
	Released, less amortization		1,573		1,273
	In production and in development		737		505
			2,310		1,778
Programming rights, less amortization			2,329		2,130
			7,047		6,539
Less: Current portion of programming rights			1,200		825
Film and television costs		$	5,847	$	5,714

Investments (Tables)

12 Months Ended

Dec. 31, 2015

Investment Summary

December 31 (in millions)			2015		2014
Fair Value Method		$	167	$	662
Equity Method:
	The Weather Channel		-		335
	Hulu		184		167
	Other		494		517
			678		1,019
Cost Method:
	AirTouch		1,583		1,568
	Other		902		488
			2,485		2,056
Total investments			3,330		3,737
Less: Current investments			106		602
Noncurrent investments		$	3,224	$	3,135

Investment Income (Loss), Net

Investment Income (Loss), Net
Year ended December 31 (in millions)			2015		2014		2013
Gains on sales and exchanges of investments, net		$	12	$	192	$	484
Investment impairment losses			(59)		(50)		(29)
Unrealized gains on securities underlying prepaid forward sale agreements			42		66		1,601
Mark to market adjustments on derivative component of prepaid forward sale
	agreements and indexed debt instruments		(42)		(56)		(1,604)
Interest and dividend income			115		116		111
Other, net			13		28		13
Investment income (loss), net		$	81	$	296	$	576

Prepaid Forward Sale Agreements

Prepaid Forward Sale Agreements
December 31 (in millions)			2014
Assets:
	Fair value equity securities held as collateral	$	523

Liabilities:
	Obligations under prepaid forward sale agreements	$	119
	Derivative component of prepaid forward sale agreements		356
Total liabilities		$	475

NBCUniversal Media LLC [Member]

Investment Summary

December 31 (in millions)			2015		2014
Fair Value Method		$	10	$	10
Equity Method:
	The Weather Channel		-		335
	Hulu		184		167
	Other		313		338
			497		840
Cost Method			458		32
Total investments		$	965	$	882

Summarized Financial Information

December 31 (in millions)				2015		2014
Current assets			$	1,904	$	1,529
Noncurrent assets			$	3,584	$	4,572
Current liabilities			$	1,225	$	1,235
Noncurrent liabilities			$	4,879	$	4,162

Year ended December 31 (in millions)		2015		2014		2013
Revenue	$	3,944	$	3,756	$	3,360
Operating income (loss)	$	(1,609)	$	483	$	645
Net income (loss)	$	(1,820)	$	243	$	188

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property and Equipment

December 31 (in millions)	Weighted-Average Original Useful LifeAs of December 31, 2015			2015		2014
Cable distribution system	11	years	$	32,586	$	31,655
Customer premise equipment	6	years		28,559		27,086
Other equipment	7	years		8,539		7,860
Buildings and leasehold improvements	25	years		10,829		8,650
Land		N/A		1,252		1,112
Property and equipment, at cost				81,765		76,363
Less: Accumulated depreciation				48,100		45,410
Property and equipment, net			$	33,665	$	30,953

NBCUniversal Media LLC [Member]

Property and Equipment

December 31 (in millions)	Weighted-Average Original Useful Lifeas of December 31, 2015			2015		2014
Buildings and leasehold improvements	27	years	$	6,543	$	5,780
Furniture, fixtures and equipment	9	years		3,457		2,930
Construction in process		N/A		1,339		775
Land		N/A		961		820
Property and equipment, at cost				12,300		10,305
Less: Accumulated depreciation				2,779		2,167
Property and equipment, net			$	9,521	$	8,138

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Goodwill

Goodwill
			NBCUniversal
(in millions)		Cable Communications		Cable Networks		Broadcast Television		Filmed Entertainment		Theme Parks		Corporate and Other		Total
Balance, December 31, 2013	$	12,206	$	13,130	$	769	$	1	$	982	$	10	$	27,098
Acquisitions		11		20		-		15		-		181		227
Adjustments^(a)		-		(202)		(2)		195		-		-		(9)
Balance, December 31, 2014		12,217		12,948		767		211		982		191		27,316
Acquisitions^(b)		173		17		39		58		5,373		1		5,661
Adjustments^(a)		(1)		(18)		-		(2)		(11)		-		(32)
Balance, December 31, 2015	$	12,389	$	12,947	$	806	$	267	$	6,344	$	192	$	32,945

(b) Acquisitions in 2015 in our Theme Parks segment related to the Universal Studios Japan transaction (see Note 5 for additional information).

Other Intangible Assets

Intangible Assets
					2015				2014
December 31 (in millions)		Weighted-Average Original Useful Life as of December 31, 2015			Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-Lived Intangible Assets:
	Franchise rights		N/A	$	59,364			$	59,364
	Trade names		N/A		2,857				3,083
	FCC licenses		N/A		651				651
Finite-Lived Intangible Assets:
	Customer relationships	19	years		13,396	$	(4,442)		15,129	$	(5,495)
	Software	4	years		6,008		(3,429)		5,040		(2,832)
	Cable franchise renewal costs and contractual operating rights	9	years		1,499		(849)		1,418		(792)
	Patents and other technology rights	7	years		409		(350)		373		(330)
	Other agreements and rights	18	years		1,994		(798)		1,456		(721)
Total				$	86,178	$	(9,868)	$	86,514	$	(10,170)

Amortization of Intangible Assets

Estimated Amortization Expense of Finite-Lived Intangible Assets
(in millions)
2016	$	1,785
2017	$	1,612
2018	$	1,365
2019	$	1,039
2020	$	902

NBCUniversal Media LLC [Member]

Schedule of Goodwill

Goodwill
(in millions)		Cable Networks		Broadcast Television		Filmed Entertainment		Theme Parks		Total
Balance, December 31, 2013	$	13,130	$	769	$	1	$	982	$	14,882
Acquisitions		20		-		15		-		35
Adjustments^(a)		(202)		(2)		195		-		(9)
Balance, December 31, 2014		12,948		767		211		982		14,908
Acquisitions^(b)		17		39		58		5,373		5,487
Adjustments^(a)		(18)		-		(2)		(11)		(31)
Balance, December 31, 2015	$	12,947	$	806	$	267	$	6,344	$	20,364

(b) Acquisitions in 2015 in our Theme Parks segment related to the Universal Studios Japan transaction (see Note 4 for additional information).

Other Intangible Assets

Intangible Assets
					2015				2014
December 31 (in millions)		Weighted-Average Original Useful Life as of December 31, 2015			Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Finite-Lived Intangible Assets:
	Customer relationships	19	years	$	13,107	$	(4,291)	$	13,093	$	(3,636)
	Software	5	years		849		(431)		657		(329)
	Other	19	years		1,996		(932)		1,556		(864)
Indefinite-Lived Intangible Assets:
	Trade names	N/A			2,857				3,059
	FCC licenses	N/A			651				651
Total				$	19,460	$	(5,654)	$	19,016	$	(4,829)

Amortization of Intangible Assets

Estimated Amortization Expense of Finite-Lived Intangible Assets
(in millions)
2016	$	812
2017	$	789
2018	$	776
2019	$	777
2020	$	781

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Long-Term Debt

Long-Term Debt Outstanding
December 31 (in millions)	Weighted-Average Interest Rate as of December 31, 2015			2015		2014
Commercial paper	0.62	%	$	975	$	845
Revolving bank credit facilities	—	%		-		-
Term loans	2.74	%		3,259		-
Senior notes with maturities of 5 years or less, at face value	4.40	%		14,300		15,223
Senior notes with maturities between 5 and 10 years, at face value	4.24	%		9,630		10,530
Senior notes with maturities greater than 10 years, at face value^(a)	5.63	%		23,925		20,989
Other, including capital lease obligations	—			794		689
Debt issuance costs, premiums, discounts and fair value
adjustments for hedged positions, net	—			(262)		(195)
Total debt	4.70	%^(b)		52,621		48,081
Less: Current portion				3,627		4,217
Long-term debt			$	48,994	$	43,864
(a) The December 31, 2015 and 2014 amounts include £625 million of 5.50% notes due 2029, which translated to $921 million and $974 million, respectively, using the exchange rates as of these dates.
(b) Includes the effects of our derivative financial instruments.

Debt Maturities

Debt Principal Maturities
(in millions)	Weighted-Average Interest Rate as of December 31, 2015
2016	2.79	%	$	3,627
2017	6.75	%	$	2,695
2018	4.11	%	$	4,194
2019	3.14	%	$	2,445
2020	4.09	%	$	6,076
Thereafter	5.23	%	$	33,846

Debt Borrowings

2015 Debt Borrowings
Year ended December 31, 2015 (in millions)
Comcast 4.60% senior notes due 2045	$	1,700
Comcast 3.375% senior notes due 2025		1,500
Comcast 4.60% senior notes due 2046		1,490
Comcast 4.40% senior notes due 2035		800
Total	$	5,490

Debt Repayments and Repurchases

2015 Debt Redemptions and Repayments
Year ended December 31, 2015 (in millions)
NBCUniversal 3.65% senior notes due 2015	$	1,000
Comcast 5.90% senior notes due 2016^(a)		1,000
Comcast 6.50% senior notes due 2015		900
Comcast 5.85% senior notes due 2015^(a)		750
Comcast 8.75% senior notes due 2015		673
Other		55
Total	$	4,378
(a) The early redemption of these senior notes resulted in $47 million of additional interest expense in 2015.

NBCUniversal Media LLC [Member]

Schedule of Long-Term Debt

Long-Term Debt Outstanding
December 31 (in millions)	Weighted-Average Interest Rate as of December 31, 2015		2015			2014
Term loans	2.74	%	$	3,259	$	-
Senior notes with maturities of 5 years or less, at face value	4.39	%		3,000		2,000
Senior notes with maturities between 5 and 10 years, at face value	3.88	%		3,000		5,000
Senior notes with maturities greater than 10 years, at face value	5.62	%		3,200		3,200
Other, including capital lease obligations	—			47		44
Debt issuance costs, premiums, discounts and fair value
adjustments for hedged positions, net	—			(12)		(7)
Total debt	4.12	%^(a)		12,494		10,237
Less: Current portion				1,163		1,023
Long-term debt			$	11,331	$	9,214
(a) Includes the effects of our derivative financial instruments.

Debt Maturities

Debt Principal Maturities
(in millions)	Weighted-Average Interest Rate as of December 31, 2015
2016	2.87	%	$	1,163
2017	3.45	%	$	120
2018	2.79	%	$	127
2019	3.05	%	$	226
2020	3.77	%	$	4,657
Thereafter	4.78	%	$	6,213

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Assets and Liabilities Measured on Recurring Basis

Recurring Fair Value Measurements
		Fair Value as of December 31, 2015								Fair Value as of December 31, 2014
(in millions)		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Trading securities	$	22	$	-	$	-	$	22	$	523	$	-	$	-	$	523
Available-for-sale securities		-		123		10		133		1		121		10		132
Interest rate swap agreements		-		53		-		53		-		84		-		84
Other		-		5		12		17		-		64		7		71
Total	$	22	$	181	$	22	$	225	$	524	$	269	$	17	$	810
Liabilities
Derivative component of prepaid forward sale agreements and indexed debt instruments	$	-	$	5	$	-	$	5	$	-	$	361	$	-	$	361
Contractual obligation		-		-		-		-		-		-		883		883
Contingent consideration		-		-		-		-		-		-		644		644
Other		-		86		-		86		-		8		-		8
Total	$	-	$	91	$	-	$	91	$	-	$	369	$	1,527	$	1,896

Postretirement, Pension and Other Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Postretirement And Pension Benefits

			2015					2014						2013
Year ended December 31 (in millions)		Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits
Benefit obligation		$	820		$	309		$	837		$	581		$	633		$	498
Fair value of plan assets^(a)			-			-			-			242			-			220
Plan funded status and recorded
	benefit obligation		(820)			(309)			(837)			(339)			(633)			(278)
Portion of benefit obligation not
	yet recognized in benefits expense		(33)			14			46			53			(110)			(3)
Benefits expense			75			13			59			14			65			12
Discount rate			4.70-4.73	%	4.31-4.40		%		4.25	%	3.75-4.25		%		5.00-5.25	%	4.50-5.25		%
Expected return on plan assets			N/A			N/A			N/A			5.00	%		N/A			5.00	%

(a) The fair value of the plan assets are primarily based on Level 1 inputs that use quoted market prices for identical financial instruments in an active market.

Deferred Compensation Plans

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	2,038	$	1,774	$	1,434
Interest expense	$	171	$	149	$	128

Benefit Obligation and Expense for Our Split-Dollar Life Insurance Agreements

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	233	$	217	$	212
Other operating and administrative expenses	$	67	$	52	$	50

NBCUniversal Media LLC [Member]

Postretirement And Pension Benefits

		2015						2014						2013
Year ended December 31 (in millions)		Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits			Postretirement Benefits			Pension Benefits
Benefit obligation		$	197		$	309		$	209		$	581		$	158		$	498
Fair value of plan assets^(a)			-			-			-			242			-			220
Plan funded status and recorded
	benefit obligation		(197)			(309)			(209)			(339)			(158)			(278)
Portion of benefit obligation not yet
	recognized in benefits expense		(27)			14			(3)			53			(44)			(3)
Benefits expense			15			13			12			14			14			12
Discount rate			4.73	%		4.31-4.40	%		4.25	%		3.75-4.25	%		5.25	%		4.50-5.25	%
Expected return on plan assets			N/A			N/A			N/A			5.00	%		N/A			5.00	%

(a) The fair value of the plan assets are primarily based on Level 1 inputs that use quoted market prices for identical financial instruments in an active market.

Deferred Compensation Plans

Year ended December 31 (in millions)		2015		2014		2013
Benefit obligation	$	417	$	349	$	250
Interest expense	$	28	$	24	$	18

Equity (Tables)

12 Months Ended

Dec. 31, 2015

Changes in Common Stock

Shares of Common Stock Outstanding
(in millions)	A	A Special	B
Balance, December 31, 2012	2,122	508	9
Stock compensation plans	14	-	-
Repurchases and retirements of common stock	-	(49)	-
Employee stock purchase plans	2	-	-
Balance, December 31, 2013	2,138	459	9
Stock compensation plans	13	-	-
Repurchases and retirements of common stock	(22)	(59)	-
Employee stock purchase plans	2	-	-
Balance, December 31, 2014	2,131	400	9
Stock compensation plans	12	-	-
Repurchases and retirements of common stock	(62)	(54)	-
Employee stock purchase plans	2	-	-
Reclassification of Class A Special common stock	346	(346)	-
Other	4	-	-
Balance, December 31, 2015	2,433	-	9

Aggregate Share Repurchases

Share Repurchases
Year ended December 31 (in millions)		2015		2014		2013
Cash consideration	$	6,750	$	4,251	$	2,000
Shares repurchased		116		81		49

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)		2015		2014
Unrealized gains (losses) on marketable securities	$	1	$	1
Deferred gains (losses) on cash flow hedges		(46)		(4)
Unrecognized gains (losses) on employee benefit obligations		6		(68)
Cumulative translation adjustments		(135)		(75)
Accumulated other comprehensive income (loss), net of deferred taxes	$	(174)	$	(146)

NBCUniversal Media LLC [Member]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)	2015		2014
Deferred gains (losses) on cash flow hedges	$	(1)	$	20
Unrecognized gains (losses) on employee benefit obligations		(1)		(61)
Cumulative translation adjustments		(210)		(118)
Accumulated other comprehensive income (loss)	$	(212)	$	(159)

Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Recognized Share-Based Compensation Expense

Recognized Share-Based Compensation Expense
Year ended December 31 (in millions)		2015		2014		2013
Restricted share units	$	273	$	231	$	175
Stock options		157		160		139
Employee stock purchase plans		25		23		20
Total	$	455	$	414	$	334

Stock Option Activity

Stock Options and Restricted Share Units
As of December 31, 2015, unless otherwise stated (in millions, except per share data)		Stock Options		RSUs
Awards granted during 2015		18		9
Weighted-average exercise price of awards granted during 2015	$	59.39
Stock options outstanding and nonvested RSUs		94		23
Weighted-average exercise price of stock options outstanding	$	36.63
Weighted-average fair value at grant date of nonvested RSUs			$	44.19

Stock Option Fair Value and Significant Assumptions

Year ended December 31			2015			2014			2013
RSUs fair value		$	58.81		$	47.91		$	38.28
Stock options fair value		$	11.78		$	11.11		$	8.80
Stock Option Valuation Assumptions:
	Dividend yield		1.7	%		1.8	%		1.9	%
	Expected volatility		23.0	%		24.0	%		25.0	%
	Risk-free interest rate		1.6	%		2.2	%		1.3	%
	Expected option life (in years)		6.0			6.5			7.0

NBCUniversal Media LLC [Member]

Recognized Share-Based Compensation Expense

Recognized Share-Based Compensation Expense
Year ended December 31 (in millions)	2015		2014		2013
Restricted share units	$	78	$	69	$	42
Stock options		10		16		15
Employee stock purchase plans		6		6		5
Total	$	94	$	91	$	62

Stock Option Fair Value and Significant Assumptions

Year ended December 31			2015			2014			2013
RSUs fair value		$	59.37		$	48.04		$	37.79
Stock options fair value		$	11.79		$	11.09		$	8.86
Stock Option Valuation Assumptions:
	Dividend yield		1.7	%		1.8	%		1.9	%
	Expected volatility		23.0	%		24.0	%		25.2	%
	Risk-free interest rate		1.6	%		2.2	%		1.3	%
	Expected option life (in years)		6.0			6.5			7.0

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Components of Income Tax Expense

Components of Income Tax Expense
Year ended December 31 (in millions)			2015		2014		2013
Current Expense (Benefit):
	Federal	$	3,210	$	2,392	$	3,183
	State		570		174		581
	Foreign		221		142		200
			4,001		2,708		3,964
Deferred Expense (Benefit):
	Federal		890		1,000		(76)
	State		66		173		108
	Foreign		2		(8)		(16)
			958		1,165		16
Income tax expense		$	4,959	$	3,873	$	3,980

Schedule of Items That Effect Income Tax Expense

Year ended December 31 (in millions)		2015		2014		2013
Federal tax at statutory rate	$	4,680	$	4,363	$	3,890
State income taxes, net of federal benefit		326		329		319
Foreign income taxes, net of federal credit		13		-		15
Nontaxable income attributable to noncontrolling interests		(69)		(62)		(103)
Adjustments to uncertain and effectively settled tax positions, net		15		(408)		58
Accrued interest on uncertain and effectively settled tax positions, net		73		(235)		114
Other		(79)		(114)		(313)
Income tax expense	$	4,959	$	3,873	$	3,980

Components of Net Deferred Tax Liability

Components of Net Deferred Tax Liability
December 31 (in millions)				2015		2014
Deferred Tax Assets:
	Net operating loss carryforwards		$	551	$	448
	Differences between book and tax basis of long-term debt			115		116
	Differences between book and tax basis of investments			101		-
	Nondeductible accruals and other			3,589		3,383
	Less: Valuation allowance			342		375
				4,014		3,572
Deferred Tax Liabilities:
	Differences between book and tax basis of property and equipment and intangible assets			36,392		35,112
	Differences between book and tax basis of investments			-		186
	Differences between book and tax basis of indexed debt securities			457		534
	Differences between book and tax basis of foreign subsidiaries and undistributed foreign
		earnings		731		504
				37,580		36,336
Net deferred tax liability			$	33,566	$	32,764

Reconciliation of Unrecognized Tax Benefits

Reconciliation of Unrecognized Tax Benefits
(in millions)		2015		2014		2013
Balance, January 1	$	1,171	$	1,701	$	1,573
Additions based on tax positions related to the current year		67		63		90
Additions based on tax positions related to prior years		98		111		201
Additions from acquired subsidiaries		-		-		268
Reductions for tax positions of prior years		(84)		(220)		(141)
Reductions due to expiration of statutes of limitations		(41)		(448)		(3)
Settlements with tax authorities		(75)		(36)		(287)
Balance, December 31	$	1,136	$	1,171	$	1,701

NBCUniversal Media LLC [Member]

Components of Income Tax Expense

Components of Income Tax Expense
Year ended December 31 (in millions)		2015		2014		2013
Foreign
	Current income tax expense	$	81	$	33	$	77
	Deferred income tax expense		2		(8)		(16)
	Withholding tax expense		139		108		123
U.S. domestic tax expense			5		10		22
Income tax expense		$	227	$	143	$	206

Supplemental Financial Information (Tables)

12 Months Ended

Dec. 31, 2015

Receivables

Receivables
December 31 (in millions)		2015		2014
Receivables, gross	$	7,595	$	6,885
Less: Allowance for returns and customer incentives		473		359
Less: Allowance for doubtful accounts		226		205
Receivables, net	$	6,896	$	6,321

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)		2015		2014
Unrealized gains (losses) on marketable securities	$	1	$	1
Deferred gains (losses) on cash flow hedges		(46)		(4)
Unrecognized gains (losses) on employee benefit obligations		6		(68)
Cumulative translation adjustments		(135)		(75)
Accumulated other comprehensive income (loss), net of deferred taxes	$	(174)	$	(146)

Cash Payments For Interest and Income Taxes

Cash Payments for Interest and Income Taxes
Year ended December 31 (in millions)		2015		2014		2013
Interest	$	2,443	$	2,389	$	2,355
Income taxes	$	3,726	$	3,668	$	3,946

NBCUniversal Media LLC [Member]

Receivables

Receivables
December 31 (in millions)		2015		2014
Receivables, gross	$	5,949	$	5,258
Less: Allowance for returns and customer incentives		469		356
Less: Allowance for doubtful accounts		69		60
Receivables, net	$	5,411	$	4,842

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)
December 31 (in millions)	2015		2014
Deferred gains (losses) on cash flow hedges	$	(1)	$	20
Unrecognized gains (losses) on employee benefit obligations		(1)		(61)
Cumulative translation adjustments		(210)		(118)
Accumulated other comprehensive income (loss)	$	(212)	$	(159)

Cash Payments For Interest and Income Taxes

Cash Payments for Interest and Income Taxes
Year ended December 31 (in millions)	2015		2014			2013
Interest	$	456	$	485	$	462
Income taxes	$	182	$	174	$	205

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

ContractualObligationFiscalYearMaturityScheduleTableTextBlock

As of December 31, 2015 (in millions)		Programming and Talent Commitments		Operating Leases
2016	$	6,405	$	452
2017	$	3,788	$	412
2018	$	4,474	$	370
2019	$	3,280	$	324
2020	$	4,357	$	284
Thereafter	$	23,061	$	1,617

Rental Expense [Table Text Block]

The table below presents our rental expense charged to operations.

Year ended December 31 (in millions)		2015		2014		2013
Rental expense	$	608	$	580	$	616

NBCUniversal Media LLC [Member]

ContractualObligationFiscalYearMaturityScheduleTableTextBlock

As of December 31, 2015 (in millions)		Programming and Talent Commitments		Operating Leases
2016	$	6,391	$	177
2017	$	3,783	$	150
2018	$	4,470	$	133
2019	$	3,280	$	126
2020	$	4,357	$	122
Thereafter	$	23,061	$	1,018

Rental Expense [Table Text Block]

The table below presents our rental expense charged to operations.
Year ended December 31 (in millions)	2015		2014		2013
Rental expense	$	213	$	222	$	250

Financial Data by Business Segment (Tables)

12 Months Ended

Dec. 31, 2015

Financial Data by Business Segment

(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2015
Cable Communications^(a)		$	46,879	$	19,120	$	7,028	$	12,092	$	7,034	$	149,267
NBCUniversal
	Cable Networks^(b)(c)		9,628		3,499		784		2,715		44		28,093
	Broadcast Television^(c)		8,530		780		111		669		117		7,871
	Filmed Entertainment^(b)		7,287		1,234		26		1,208		14		4,255
	Theme Parks^(d)		3,339		1,464		292		1,172		833		14,027
	Headquarters and Other^(e)		14		(625)		326		(951)		378		6,898
	Eliminations^(d)(f)		(336)		62		-		62		-		(454)
NBCUniversal			28,462		6,414		1,539		4,875		1,386		60,690
Corporate and Other			766		(898)		113		(1,011)		79		4,783
Eliminations^(f)			(1,597)		42		-		42		-		(48,166)
Comcast Consolidated		$	74,510	$	24,678	$	8,680	$	15,998	$	8,499	$	166,574

(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2014
Cable Communications^(a)		$	44,140	$	18,112	$	6,422	$	11,690	$	6,154	$	140,616
NBCUniversal
	Cable Networks^(b)(c)		9,563		3,589		748		2,841		49		28,582
	Broadcast Television^(c)		8,542		734		127		607		76		6,806
	Filmed Entertainment^(b)		5,008		711		21		690		11		4,185
	Theme Parks^(d)		2,623		1,096		273		823		671		7,017
	Headquarters and Other^(e)		13		(613)		326		(939)		414		6,467
	Eliminations^(d)(f)		(321)		71		-		71		-		(453)
NBCUniversal			25,428		5,588		1,495		4,093		1,221		52,604
Corporate and Other			709		(778)		102		(880)		45		5,198
Eliminations^(f)			(1,502)		1		-		1		-		(39,232)
Comcast Consolidated		$	68,775	$	22,923	$	8,019	$	14,904	$	7,420	$	159,186


(in millions)			Revenue^(g)		Operating Income (Loss) Before Depreciation and Amortization^(h)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
2013
Cable Communications^(a)		$	41,836	$	17,205	$	6,394	$	10,811	$	5,403
NBCUniversal
	Cable Networks^(b)		9,201		3,501		734		2,767		67
	Broadcast Television		7,120		345		98		247		65
	Filmed Entertainment^(b)		5,452		483		15		468		9
	Theme Parks^(d)		2,235		943		300		643		580
	Headquarters and Other^(e)		31		(588)		264		(852)		439
	Eliminations^(d)(f)		(389)		48		-		48		-
NBCUniversal			23,650		4,732		1,411		3,321		1,160
Corporate and Other			600		(489)		66		(555)		33
Eliminations^(f)			(1,429)		(14)		-		(14)		-
Comcast Consolidated		$	64,657	$	21,434	$	7,871	$	13,563	$	6,596

Cable Communications Segment Revenue Sources

		2015		2014		2013
Residential:
	Video	45.9	%	47.1	%	49.1	%
	High-speed Internet	26.6	%	25.6	%	24.7	%
	Voice	7.7	%	8.3	%	8.7	%
Business services		10.1	%	9.0	%	7.7	%
Advertising		4.9	%	5.4	%	5.1	%
Other		4.8	%	4.6	%	4.7	%
Total		100	%	100	%	100	%

NBCUniversal Media LLC [Member]

Financial Data by Business Segment

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2015
	Cable Networks^(a)	$	9,628	$	3,499	$	784	$	2,715	$	44	$	28,093
	Broadcast Television^(b)		8,530		780		111		669		117		7,871
	Filmed Entertainment^(a)		7,287		1,234		26		1,208		14		4,255
	Theme Parks^(c)		3,339		1,464		292		1,172		833		14,027
	Headquarters and Other^(d)		14		(625)		326		(951)		378		6,898
	Eliminations^(c)(e)		(336)		6		-		6		-		(454)
Total		$	28,462	$	6,358	$	1,539	$	4,819	$	1,386	$	60,690

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures		Assets
2014
	Cable Networks^(a)(b)	$	9,563	$	3,589	$	748	$	2,841	$	49	$	28,582
	Broadcast Television^(b)		8,542		734		127		607		76		6,806
	Filmed Entertainment^(a)		5,008		711		21		690		11		4,185
	Theme Parks^(c)		2,623		1,096		273		823		671		7,017
	Headquarters and Other^(d)		13		(613)		326		(939)		414		6,467
	Eliminations^(c)(e)		(321)		71		-		71		-		(453)
Total		$	25,428	$	5,588	$	1,495	$	4,093	$	1,221	$	52,604

(in millions)			Revenue^(f)(h)		Operating Income (Loss) Before Depreciation and Amortization^(g)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
2013
	Cable Networks^(a)	$	9,201	$	3,501	$	734	$	2,767	$	67
	Broadcast Television		7,120		345		98		247		65
	Filmed Entertainment^(a)		5,452		483		15		468		9
	Theme Parks^(c)		2,235		943		300		643		580
	Headquarters and Other^(d)		31		(588)		264		(852)		439
	Eliminations^(c)(e)		(389)		48		-		48		-
Total		$	23,650	$	4,732	$	1,411	$	3,321	$	1,160

Revenue From External Customers By Geographic Areas

Year ended December 31 (in millions)		2015		2014		2013
Revenue:
United States	$	22,663	$	20,995	$	18,887
Foreign	$	5,799	$	4,433	$	4,763

Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information

Quarterly Financial Information (Unaudited)

(in millions, except per share data)		First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
2015
Revenue	$	17,853	$	18,743	$	18,669	$	19,245	$	74,510
Operating income	$	3,890	$	4,105	$	4,001	$	4,002	$	15,998
Net income attributable to Comcast Corporation	$	2,059	$	2,137	$	1,996	$	1,971	$	8,163
Basic earnings per common share attributable to Comcast Corporation shareholders	$	0.82	$	0.85	$	0.81	$	0.80	$	3.28
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	0.81	$	0.84	$	0.80	$	0.79	$	3.24
Dividends declared per common share	$	0.25	$	0.25	$	0.25	$	0.25	$	1.00
2014
Revenue	$	17,408	$	16,844	$	16,791	$	17,732	$	68,775
Operating income	$	3,568	$	3,804	$	3,745	$	3,787	$	14,904
Net income attributable to Comcast Corporation^(a)	$	1,871	$	1,992	$	2,592	$	1,925	$	8,380
Basic earnings per common share attributable to Comcast Corporation shareholders	$	0.72	$	0.77	$	1.00	$	0.75	$	3.24
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	0.71	$	0.76	$	0.99	$	0.74	$	3.20
Dividends declared per common share	$	0.225	$	0.225	$	0.225	$	0.225	$	0.90

Condensed Consolidating Financial Information (Tables)

12 Months Ended

Dec. 31, 2015

Condensed Consolidating Financial Information [Abstract]

Condensed Consolidating Financial Statements

Condensed Consolidating Balance Sheet
December 31, 2015 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Assets
	Cash and cash equivalents	$	-	$	-	$	-	$	414	$	1,881	$	-	$	2,295
	Investments		-		-		-		-		106		-		106
	Receivables, net		-		-		-		-		6,896		-		6,896
	Programming rights		-		-		-		-		1,213		-		1,213
	Other current assets		69		-		-		17		1,707		-		1,793
Total current assets			69		-		-		431		11,803		-		12,303
Film and television costs			-		-		-		-		5,855		-		5,855
Investments			33		-		-		430		2,761		-		3,224
Investments in and amounts due from subsidiaries eliminated upon consolidation			87,142		111,241		119,354		42,441		109,598		(469,776)		-
Property and equipment, net			210		-		-		-		33,455		-		33,665
Franchise rights			-		-		-		-		59,364		-		59,364
Goodwill			-		-		-		-		32,945		-		32,945
Other intangible assets, net			12		-		-		-		16,934		-		16,946
Other noncurrent assets, net			1,301		147		-		78		2,114		(1,368)		2,272
Total assets		$	88,767	$	111,388	$	119,354	$	43,380	$	274,829	$	(471,144)	$	166,574

Liabilities and Equity
	Accounts payable and accrued expenses related to trade creditors	$	16	$	-	$	-	$	-	$	6,199	$	-	$	6,215
	Accrued participations and residuals		-		-		-		-		1,572		-		1,572
	Accrued expenses and other current liabilities		1,789		335		290		389		3,961		-		6,764
	Current portion of long-term debt		1,149		-		-		1,005		1,473		-		3,627
Total current liabilities			2,954		335		290		1,394		13,205		-		18,178
Long-term debt, less current portion			31,106		130		2,650		8,211		6,897		-		48,994
Deferred income taxes			-		624		-		66		34,098		(1,222)		33,566
Other noncurrent liabilities			2,438		-		-		1,087		7,258		(146)		10,637
Redeemable noncontrolling interests
	and redeemable subsidiary preferred stock		-		-		-		-		1,221		-		1,221
Equity:
	Common stock		29		-		-		-		-		-		29
	Other shareholders’ equity		52,240		110,299		116,414		32,622		210,441		(469,776)		52,240
Total Comcast Corporation shareholders’ equity			52,269		110,299		116,414		32,622		210,441		(469,776)		52,269
Noncontrolling interests			-		-		-		-		1,709		-		1,709
Total equity			52,269		110,299		116,414		32,622		212,150		(469,776)		53,978
Total liabilities and equity		$	88,767	$	111,388	$	119,354	$	43,380	$	274,829	$	(471,144)	$	166,574

Condensed Consolidating Balance Sheet
December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Assets
	Cash and cash equivalents	$	-	$	-	$	-	$	385	$	3,525	$	-	$	3,910
	Investments		-		-		-		-		602		-		602
	Receivables, net		-		-		-		-		6,321		-		6,321
	Programming rights		-		-		-		-		839		-		839
	Other current assets		267		-		-		41		1,551		-		1,859
Total current assets			267		-		-		426		12,838		-		13,531
Film and television costs			-		-		-		-		5,727		-		5,727
Investments			36		-		-		378		2,721		-		3,135
Investments in and amounts due from subsidiaries eliminated upon consolidation			84,142		103,420		111,870		41,239		98,152		(438,823)		-
Property and equipment, net			199		-		-		-		30,754		-		30,953
Franchise rights			-		-		-		-		59,364		-		59,364
Goodwill			-		-		-		-		27,316		-		27,316
Other intangible assets, net			11		-		-		-		16,969		-		16,980
Other noncurrent assets, net			1,086		145		-		80		1,949		(1,080)		2,180
Total assets		$	85,741	$	103,565	$	111,870	$	42,123	$	255,790	$	(439,903)	$	159,186

Liabilities and Equity
	Accounts payable and accrued expenses related to trade creditors	$	19	$	-	$	1	$	-	$	5,618	$	-	$	5,638
	Accrued participations and residuals		-		-		-		-		1,347		-		1,347
	Accrued expenses and other current liabilities		1,547		283		280		331		3,767		-		6,208
	Current portion of long-term debt		1,650		-		677		1,006		884		-		4,217
Total current liabilities			3,216		283		958		1,337		11,616		-		17,410
Long-term debt, less current portion			27,478		123		2,649		9,206		4,408		-		43,864
Deferred income taxes			-		701		-		67		33,127		(936)		32,959
Other noncurrent liabilities			2,336		-		-		1,143		7,484		(144)		10,819
Redeemable noncontrolling interests
	and redeemable subsidiary preferred stock		-		-		-		-		1,066		-		1,066
Equity:
	Common stock		30		-		-		-		-		-		30
	Other shareholders’ equity		52,681		102,458		108,263		30,370		197,732		(438,823)		52,681
Total Comcast Corporation shareholders’ equity			52,711		102,458		108,263		30,370		197,732		(438,823)		52,711
Noncontrolling interests			-		-		-		-		357		-		357
Total equity			52,711		102,458		108,263		30,370		198,089		(438,823)		53,068
Total liabilities and equity		$	85,741	$	103,565	$	111,870	$	42,123	$	255,790	$	(439,903)	$	159,186

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2015(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	74,510	$	-	$	74,510
	Management fee revenue		1,005		-		977		-		-		(1,982)		-
			1,005		-		977		-		74,510		(1,982)		74,510
Costs and Expenses:
	Programming and production		-		-		-		-		22,550		-		22,550
	Other operating and administrative		760		-		977		922		20,662		(1,982)		21,339
	Advertising, marketing and promotion		-		-		-		-		5,943		-		5,943
	Depreciation		31		-		-		-		6,750		-		6,781
	Amortization		6		-		-		-		1,893		-		1,899
			797		-		977		922		57,798		(1,982)		58,512
Operating income (loss)			208		-		-		(922)		16,712		-		15,998
Other Income (Expense):
	Interest expense		(1,744)		(12)		(270)		(462)		(214)		-		(2,702)
	Investment income (loss), net		6		(1)		-		(19)		95		-		81
	Equity in net income (losses) of
	investees, net		9,159		8,651		8,040		4,852		3,089		(34,116)		(325)
	Other income (expense), net		(3)		-		-		(31)		354		-		320
			7,418		8,638		7,770		4,340		3,324		(34,116)		(2,626)
Income (loss) before income taxes			7,626		8,638		7,770		3,418		20,036		(34,116)		13,372
Income tax (expense) benefit			537		4		94		(4)		(5,590)		-		(4,959)
Net income (loss)			8,163		8,642		7,864		3,414		14,446		(34,116)		8,413
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(250)		-		(250)
Net income (loss) attributable to
	Comcast Corporation	$	8,163	$	8,642	$	7,864	$	3,414	$	14,196	$	(34,116)	$	8,163
Comprehensive income (loss)
	attributable to Comcast Corporation	$	8,135	$	8,625	$	7,864	$	3,361	$	14,192	$	(34,042)	$	8,135

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	68,775	$	-	$	68,775
	Management fee revenue		947		-	-	921	-	-		-		(1,868)		-
			947		-		921		-		68,775		(1,868)		68,775
Costs and Expenses:
	Programming and production		-		-		-		-		20,912		-		20,912
	Other operating and administrative		751		-		921		908		19,142		(1,868)		19,854
	Advertising, marketing and promotion		-		-		-		-		5,086		-		5,086
	Depreciation		34		-		-		-		6,303		-		6,337
	Amortization		6		-		-		-		1,676		-		1,682
			791		-		921		908		53,119		(1,868)		53,871
Operating income (loss)			156		-		-		(908)		15,656		-		14,904
Other Income (Expense):
	Interest expense		(1,621)		(11)		(294)		(479)		(212)		-		(2,617)
	Investment income (loss), net		3		12		-		(7)		288		-		296
	Equity in net income (losses) of
	investees, net		9,330		8,843		8,350		4,523		3,212		(34,161)		97
	Other income (expense), net		-		-		-		(4)		(211)		-		(215)
			7,712		8,844		8,056		4,033		3,077		(34,161)		(2,439)
Income (loss) before income taxes			7,868		8,844		8,056		3,125		18,733		(34,161)		12,465
Income tax (expense) benefit			512		-		103		(10)		(4,478)		-		(3,873)
Net income (loss)			8,380		8,844		8,159		3,115		14,255		(34,161)		8,592
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(212)		-		(212)
Net income (loss) attributable
	to Comcast Corporation	$	8,380	$	8,844	$	8,159	$	3,115	$	14,043	$	(34,161)	$	8,380
Comprehensive income (loss)
	attributable to Comcast Corporation	$	8,178	$	8,807	$	8,163	$	2,972	$	13,980	$	(33,922)	$	8,178

Condensed Consolidating Statement of Income
For the Year Ended December 31, 2013 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Revenue:
	Service revenue	$	-	$	-	$	-	$	-	$	64,657	$	-	$	64,657
	Management fee revenue		897		-		874		-		-		(1,771)		-
			897		-		874		-		64,657		(1,771)		64,657
Costs and Expenses:
	Programming and production		-		-		-		-		19,670		-		19,670
	Other operating and administrative		403		-		874		855		18,214		(1,771)		18,575
	Advertising, marketing and promotion		-		-		-		-		4,978		-		4,978
	Depreciation		30		-		-		-		6,224		-		6,254
	Amortization		5		-		-		-		1,612		-		1,617
			438		-		874		855		50,698		(1,771)		51,094
Operating income (loss)			459		-		-		(855)		13,959		-		13,563
Other Income (Expense):											-
	Interest expense		(1,523)		(11)		(338)		(488)		(214)		-		(2,574)
	Investment income (loss), net		-		(13)		-		3		586		-		576
	Equity in net income (losses) of
	investees, net		7,509		7,540		7,512		3,331		1,882		(27,860)		(86)
	Other income (expense), net		(2)		-		2		(1)		(363)		-		(364)
			5,984		7,516		7,176		2,845		1,891		(27,860)		(2,448)
Income (loss) before income taxes			6,443		7,516		7,176		1,990		15,850		(27,860)		11,115
Income tax (expense) benefit			373		9		117		(22)		(4,457)		-		(3,980)
Net income (loss)			6,816		7,525		7,293		1,968		11,393		(27,860)		7,135
Net (income) loss attributable to
	noncontrolling interests and redeemable subsidiary preferred stock		-		-		-		-		(319)		-		(319)
Net income (loss) attributable to
	Comcast Corporation	$	6,816	$	7,525	$	7,293	$	1,968	$	11,074	$	(27,860)	$	6,816
Comprehensive income (loss)
	attributable to Comcast Corporation	$	6,883	$	7,521	$	7,277	$	2,017	$	10,969	$	(27,784)	$	6,883

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2015 (in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(792)	$	48	$	(167)	$	(1,398)	$	21,087	$	-	$	18,778
Investing Activities:
	Net transactions with affiliates		6,559		(48)		840		2,839		(10,190)		-		-
	Capital expenditures		(27)		-		-		-		(8,472)		-		(8,499)
	Cash paid for intangible assets		(6)		-		-		-		(1,364)		-		(1,370)
	Acquisitions and construction of real estate properties		-		-		-		-		(178)		-		(178)
	Acquisitions, net of cash acquired		-		-		-		-		(1,786)		-		(1,786)
	Proceeds from sales of businesses and investments		-		-		-		4		429		-		433
	Purchases of investments		(7)		-		-		(407)		(370)		-		(784)
	Other		7		-		-		(5)		218		-		220
	Net cash provided by (used in) investing activities		6,526		(48)		840		2,431		(21,713)		-		(11,964)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		400		-		-		-		(265)		-		135
	Proceeds from borrowings		5,486		-		-		-		-		-		5,486
	Repurchases and repayments of debt		(2,650)		-		(673)		(1,004)		(51)		-		(4,378)
	Repurchases and retirements of common stock		(6,750)		-		-		-		-		-		(6,750)
	Dividends paid		(2,437)		-		-		-		-		-		(2,437)
	Issuances of common stock		36		-		-		-		-		-		36
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(232)		-		(232)
	Other		181		-		-		-		(470)		-		(289)
	Net cash provided by (used in) financing activities		(5,734)		-		(673)		(1,004)		(1,018)		-		(8,429)
Increase (decrease) in cash and cash equivalents			-		-		-		29		(1,644)		-		(1,615)
Cash and cash equivalents, beginning of year			-		-		-		385		3,525		-		3,910
Cash and cash equivalents, end of year		$	-	$	-	$	-	$	414	$	1,881	$	-	$	2,295

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2014(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(354)	$	9	$	(139)	$	(1,299)	$	18,728	$	-	$	16,945
Investing Activities:
	Net transactions with affiliates		4,784		(9)		139		2,247		(7,161)		-		-
	Capital expenditures		(3)		-		-		-		(7,417)		-		(7,420)
	Cash paid for intangible assets		(6)		-		-		-		(1,116)		-		(1,122)
	Acquisitions and construction of real estate properties		-		-		-		-		(43)		-		(43)
	Acquisitions, net of cash acquired		-		-		-		-		(477)		-		(477)
	Proceeds from sales of businesses and investments		-		-		-		8		658		-		666
	Purchases of investments		(19)		-		-		(10)		(162)		-		(191)
	Other		-		-		-		5		(151)		-		(146)
	Net cash provided by (used in) investing activities		4,756		(9)		139		2,250		(15,869)		-		(8,733)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		(1,350)		-		-		-		846		-		(504)
	Proceeds from borrowings		4,180		-		-		-		2		-		4,182
	Repurchases and repayments of debt		(1,000)		-		-		(902)		(1,273)		-		(3,175)
	Repurchases and retirements of common stock		(4,251)		-		-		-		-		-		(4,251)
	Dividends paid		(2,254)		-		-		-		-		-		(2,254)
	Issuances of common stock		35		-		-		-		-		-		35
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(220)		-		(220)
	Other		238		-		-		-		(71)		-		167
	Net cash provided by (used in) financing activities		(4,402)		-		-		(902)		(716)		-		(6,020)
Increase (decrease) in cash and cash equivalents			-		-		-		49		2,143		-		2,192
Cash and cash equivalents, beginning of year			-		-		-		336		1,382		-		1,718
Cash and cash equivalents, end of year		$	-		-		-		385		3,525		-		3,910

Condensed Consolidating Statement of Cash Flows
For the Year Ended December 31, 2013(in millions)			Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non-Guarantor Subsidiaries		Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
	Net cash provided by (used in) operating activities	$	(600)	$	(3)	$	(245)	$	(1,102)	$	16,110	$	-	$	14,160
Investing Activities:
	Net transactions with affiliates		66		3		2,580		(470)		(2,179)		-		-
	Capital expenditures		(7)		-		-		-		(6,589)		-		(6,596)
	Cash paid for intangible assets		(4)		-		-		-		(1,005)		-		(1,009)
	Acquisitions and construction of real estate properties		-		-		-		-		(1,904)		-		(1,904)
	Acquisitions, net of cash acquired		-		-		-		-		(99)		-		(99)
	Proceeds from sales of businesses and investments		-		-		-		2		1,081		-		1,083
	Purchases of investments		(11)		-		-		(3)		(1,209)		-		(1,223)
	Other		-		-		-		108		126		-		234
	Net cash provided by (used in) investing activities		44		3		2,580		(363)		(11,778)		-		(9,514)
Financing Activities:
	Proceeds from (repayments of) short-term borrowings, net		1,349		-		-		-		(4)		-		1,345
	Proceeds from borrowings		2,933		-		-		-		-		-		2,933
	Repurchases and repayments of debt		-		-		(2,335)		(88)		(21)		-		(2,444)
	Repurchases and retirements of common stock		(2,000)		-		-		-		-		-		(2,000)
	Dividends paid		(1,964)		-		-		-		-		-		(1,964)
	Issuances of common stock		40		-		-		-		-		-		40
	Purchase of NBCUniversal noncontrolling common equity interest		-		-		-		(3,200)		(7,561)		-		(10,761)
	Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock		-		-		-		-		(215)		-		(215)
	Settlement of Station Venture liability		-		-		-		-		(602)		-		(602)
	Other		198		-		-		(40)		(369)		-		(211)
	Net cash provided by (used in) financing activities		556		-		(2,335)		(3,328)		(8,772)		-		(13,879)
Increase (decrease) in cash and cash equivalents			-		-		-		(4,793)		(4,440)		-		(9,233)
Cash and cash equivalents, beginning of year			-		-		-		5,129		5,822		-		10,951
Cash and cash equivalents, end of year		$	-	$	-	$	-	$	336	$	1,382	$	-	$	1,718

Schedule II Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2015

Schedule II-Valuation and Qualifying Accounts

Comcast Corporation and Subsidiaries
Schedule II — Valuation and Qualifying Accounts
Year ended December 31, 2015, 2014 and 2013

Year Ended December 31 (in millions)			Balance at Beginning of Year		Additions Charged to Costs and Expenses^(a)		Deductions from Reserves^(a)		Balance at End of Year

2015
	Allowance for doubtful accounts	$	205	$	166	$	145	$	226
	Allowance for returns and customer incentives		359		1,236		1,122		473
	Valuation allowance on deferred tax assets		375		4		37		342
2014
	Allowance for doubtful accounts	$	221	$	162	$	178	$	205
	Allowance for returns and customer incentives		375		932		948		359
	Valuation allowance on deferred tax assets		405		33		63		375
2013
	Allowance for doubtful accounts	$	198	$	317	$	294	$	221
	Allowance for returns and customer incentives		307		811		743		375
	Valuation allowance on deferred tax assets		355		71		21		405

NBCUniversal Media LLC [Member]

Schedule II-Valuation and Qualifying Accounts

NBCUniversal Media, LLC
Schedule II — Valuation and Qualifying Accounts
Year ended December 31, 2015, 2014 and 2013

Year Ended December 31 (in millions)			Balance at Beginning of Year		Additions Charged to Costs and Expenses^(a)		Deductions from Reserves^(a)		Balance at End of Year
2015
	Allowance for doubtful accounts	$	60	$	27	$	18	$	69
	Allowance for returns and customer incentives		356		1,233		1,120		469
	Valuation allowance on deferred tax assets		87		4		20		71
2014
	Allowance for doubtful accounts	$	65	$	11	$	16	$	60
	Allowance for returns and customer incentives		372		930		946		356
	Valuation allowance on deferred tax assets		60		33		6		87
2013
	Allowance for doubtful accounts	$	46	$	33	$	14	$	65
	Allowance for returns and customer incentives		307		808		743		372
	Valuation allowance on deferred tax assets		73		8		21		60

Business and Basis of Presentation (Details) - numberofcustomers numberofcustomers in Millions	Dec. 31, 2015	Nov. 13, 2015
Total Customer Relationships	27.7
Video Customers [Member]
Number of customers	22.3
High-speed Internet Customers [Member]
Number of customers	23.3
Voice Customers [Member]
Number of customers	11.5
Universal Studios Japan [Member]
Ownership Percentage		51.00%
Universal Studios Japan [Member] \| NBCUniversal Media LLC [Member]
Ownership Percentage		51.00%

Recent Accounting Pronouncements (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Debt issuance cost	$ 176
NBCUniversal Media LLC [Member]
Debt issuance cost	$ 11
Debt Issuance Costs New Account Pronouncement - Reduction of Long Term Debt [Member]
New accounting pronouncement, early adoption, effect on balance sheet		$ 153
Debt Issuance Costs New Account Pronouncement - Reduction of Long Term Debt [Member] \| NBCUniversal Media LLC [Member]
New accounting pronouncement, early adoption, effect on balance sheet		12
Deferred Income Taxes New Accounting Pronouncement Reclass to Long Term Liabilities [Member]
New Accounting Pronouncement, early adoption, effect on balance sheet if retrospectively adopted		$ 195

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share
Net income attributable to Parent	$ 1,971	$ 1,996	$ 2,137	$ 2,059	$ 1,925	$ 2,592	$ 1,992	$ 1,871	$ 8,163	$ 8,380	$ 6,816
Basic shares attributable to Comcast Corporation shareholders									2,486	2,583	2,625
Assumed exercise or issuance of shares relating to stock plans									32	37	40
Diluted shares attributable to Comcast Corporation shareholders									2,518	2,620	2,665
Basic earnings per common share attributable to Comcast Corporation shareholders	$ 0.8	$ 0.81	$ 0.85	$ 0.82	$ 0.75	$ 1	$ 0.77	$ 0.72	$ 3.28	$ 3.24	$ 2.6
Diluted earnings per common share attributable to Comcast Corporation shareholders	$ 0.79	$ 0.8	$ 0.84	$ 0.81	$ 0.74	$ 0.99	$ 0.76	$ 0.71	$ 3.24	$ 3.2	$ 2.56

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Significant Transactions (Narrative) (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 13, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Mar. 19, 2013
Comcast Corporation [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Ownership percentage in NBCUniversal Holdings				96.00%
Comcast Cash On Hand [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				$ 11,400
Comcast Cash On Hand [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				11,400
NBCUniversal Cash On Hand [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Portion Of Consideration Transferred Funded By NBCUniversal				4,600
NBCUniversal Enterprise Senior Debt Securities [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				4,000
NBCUniversal Enterprise Senior Debt Securities [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				4,000
Commercial Paper Program
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				750
Commercial Paper Program \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				750
NBCUniversal Enterprise Preferred Stock [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				725
NBCUniversal Enterprise Preferred Stock [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				$ 725
NBCUniversal Holdings Preferred Stock [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Preferred stock dividend rate percentage				8.25%
Preferred stock liquidation preference value				$ 9,400
Preferred stock dividend reset rate percentage description				On March 1, 2018, and thereafter on every fifth anniversary of such date, this rate will reset to 7.44% plus the yield on actively traded United States Treasury securities having a 5 year maturity.
Thirty Rockefeller Plaza And Englewood Cliffs [Member]
Significant Transactions [Line Items]
Payments related to acquisition of real estate properties				$ 1,400
Thirty Rockefeller Plaza And Englewood Cliffs [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Payments related to acquisition of real estate properties				$ 1,400
NBCUniversal Enterprise [Member]
Significant Transactions [Line Items]
Preferred stock dividend rate percentage				5.25%
Fair value of redeemable preferred stock		$ 758	$ 751
NBCUniversal Enterprise [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Ownership percentage in NBCUniversal Holdings				4.00%
Transaction-Related Expenses Member
Significant Transactions [Line Items]
Transaction costs and transaction-related costs		198	$ 237
Write-off of assets related to merger agreement termination		20
Universal Studios Japan [Member]
Significant Transactions [Line Items]
Net income (loss) attributable to acquired company		18
Ownership Percentage	51.00%
Revenue Of Acquiree Since Acquisition Date		169
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	49.00%
Cash Consideration Transferred	$ 1,500
Universal Studios Japan [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Net income (loss) attributable to acquired company		18
Ownership Percentage	51.00%
Revenue Of Acquiree Since Acquisition Date		$ 169
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	49.00%
Cash Consideration Transferred	$ 1,500
NBCUniversal Enterprise Credit Facility [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				$ 1,250
NBCUniversal Enterprise Credit Facility [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Consideration transferred related to the Redemption Transaction and purchase of certain properties				1,250
NBCUniversal Redemption Transaction [Member]
Significant Transactions [Line Items]
Purchase of NBCUniversal noncontrolling interest				16,700
Remaining noncontrolling interest acquired					49.00%
NBCUniversal Redemption Transaction [Member] \| NBCUniversal Media LLC [Member]
Significant Transactions [Line Items]
Purchase of NBCUniversal noncontrolling interest				$ 16,700
Remaining noncontrolling interest acquired					49.00%
Redemption percentage				15.00%

Significant Transactions (Preliminary Allocation of Purchase Price) (Details) - USD ($) $ in Millions	Nov. 13, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill		$ 32,945	$ 27,316	$ 27,098
NBCUniversal Media LLC [Member]
Goodwill		$ 20,364	$ 14,908	$ 14,882
Universal Studios Japan [Member]
Property and equipment	$ 642
Intangible assets	57
Working capital	(24)
Long-term debt	(3,271)
Other noncurrent assets and liabilities	162
Fair value of identifiable net assets acquired	(2,434)
Fair value of noncontrolling interests associated with net assets acquired	(1,440)
Goodwill	5,373
Cash consideration transferred	1,499
Universal Studios Japan [Member] \| NBCUniversal Media LLC [Member]
Property and equipment	642
Intangible assets	57
Working capital	(24)
Long-term debt	(3,271)
Other noncurrent assets and liabilities	162
Fair value of identifiable net assets acquired	(2,434)
Fair value of noncontrolling interests associated with net assets acquired	(1,440)
Goodwill	5,373
Cash consideration transferred	$ 1,499

Significant Transactions (Pro Forma Information) (Details) - Universal Studios Japan [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenue [Pro Forma]	$ 75,563	$ 69,860
Net Income [Pro Forma]	8,640	8,758
Net income attributable to Comcast Corporation [Pro Forma]	$ 8,278	$ 8,463
Basic earnings per common share attributable to Comcast Corporation shareholders [Pro Forma]	$ 3.33	$ 3.28
Diluted earnings per common share attributable to Comcast Corporation shareholders [Pro Forma]	$ 3.29	$ 3.23
NBC Universal Media LLC [Member]
Revenue [Pro Forma]	$ 29,514	$ 26,513
Net Income [Pro Forma]	3,851	3,463
Net income attributable to Comcast Corporation [Pro Forma]	$ 3,529	$ 3,198

Related Party Transactions (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Settlement Of Station Venture Liability			$ 602
Other noncurrent liabilities	$ 10,637	$ 10,819
NBCUniversal Media LLC [Member]
Revolving Credit Agreement Capacity			3,000
Collateral Liability For Unconsolidated Subsidiary Debt			482
Borrowing margin for LIBOR based borrowings	1.00%
Settlement Of Station Venture Liability	$ 0	0	602
Redemption Transaction Distribution	0	0	$ 3,200
Other noncurrent liabilities	3,790	3,721
NBCUniversal Holdings Preferred Stock [Member] \| NBCUniversal Media LLC [Member]
Preferred stock liquidation preference value	$ 9,400
Preferred stock dividend rate percentage	8.25%
Carrying Value Of Related Party Contractual Obligation [Member] \| NBCUniversal Media LLC [Member]
Other noncurrent liabilities	$ 383	$ 383

Related Party Transactions - Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Receivables, net	$ 6,896	$ 6,321
Accounts payable and accrued expenses related to trade creditors	6,215	5,638
Accrued expenses and other current liabilities	5,462	5,293
Other noncurrent liabilities	10,637	10,819
NBCUniversal Media LLC [Member]
Receivables, net	5,411	4,842
Accounts payable and accrued expenses related to trade creditors	1,564	1,388
Accrued expenses and other current liabilities	1,675	1,422
Note payable to Comcast	1,750	865
Other noncurrent liabilities	3,790	3,721
Transactions With Comcast And Consolidated Subsidiaries [Member] \| NBCUniversal Media LLC [Member]
Receivables, net	239	229
Accounts payable and accrued expenses related to trade creditors	68	47
Accrued expenses and other current liabilities	51	8
Note payable to Comcast	1,750	865
Other noncurrent liabilities	$ 383	$ 383

Related Party Transactions - Condensed Consolidated Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	$ 74,510	$ 68,775	$ 64,657
NBCUniversal Media LLC [Member]
Revenue									28,462	25,428	23,650
Transactions With Comcast And Consolidated Subsidiaries [Member] \| NBCUniversal Media LLC [Member]
Revenue									1,349	1,315	1,262
Operating costs and expenses									(246)	(162)	(190)
Other income (expense)									$ (37)	$ (43)	$ 0

Film and Television Costs (Film and Television Costs)(Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Film Costs
Released, less amortization	$ 1,275	$ 1,371
Completed, not released	226	71
In production and in development	907	1,189
Total film costs	2,408	2,631
Television Costs
Released, less amortization	1,573	1,273
In production and in development	737	505
Total television costs	2,310	1,778
Programming rights, less amortization	2,350	2,157
Total film costs, television costs and programming rights	7,068	6,566
Less: Current portion of programming rights	1,213	839
Film and television costs	5,855	5,727
NBCUniversal Media LLC [Member]
Film Costs
Released, less amortization	1,275	1,371
Completed, not released	226	71
In production and in development	907	1,189
Total film costs	2,408	2,631
Television Costs
Released, less amortization	1,573	1,273
In production and in development	737	505
Total television costs	2,310	1,778
Programming rights, less amortization	2,329	2,130
Total film costs, television costs and programming rights	7,047	6,539
Less: Current portion of programming rights	1,200	825
Film and television costs	$ 5,847	$ 5,714

Film and Television Costs (Narrative)(Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
Amortization of completed film and television production expected to be amortized during the next fiscal year	$ 1,500
Expected amortization percentage of released and unamortized film and television costs	87.00%
Remaining unamortized costs of acquired film and television libraries	$ 449
Expected amortization percentage of unamortized film and television library costs during the next three fiscal years	49.00%
NBCUniversal Media LLC [Member]
Amortization of completed film and television production expected to be amortized during the next fiscal year	$ 1,500
Expected amortization percentage of released and unamortized film and television costs	87.00%
Remaining unamortized costs of acquired film and television libraries	$ 449
Expected amortization percentage of unamortized film and television library costs during the next three fiscal years	49.00%

Investments (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fair value method	$ 167	$ 662
Equity method	678	1,019
Cost method	2,485	2,056
Total Investments	3,330	3,737
Less: Current investments	106	602
Noncurrent investments	3,224	3,135
NBCUniversal Media LLC [Member]
Fair value method	10	10
Equity method	497	840
Cost method	458	32
Total Investments	965	882
Other Equity Method Investments [Member]
Equity method	494	517
Other Equity Method Investments [Member] \| NBCUniversal Media LLC [Member]
Equity method	313	338
Air Touch [Member]
Cost method	1,583	1,568
Other Investment [Member]
Cost method	902	488
The Weather Channel [Member]
Equity method	0	335
The Weather Channel [Member] \| NBCUniversal Media LLC [Member]
Equity method	0	335
Hulu [Member]
Equity method	184	167
Hulu [Member] \| NBCUniversal Media LLC [Member]
Equity method	$ 184	$ 167

Investments (Investment Income (Loss), Net) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Gains on sales and exchanges of investments, net	$ 12	$ 192	$ 484
Investment impairment losses	(59)	(50)	(29)
Unrealized gains (losses) on securities underlying prepaid forward sale agreements	42	66	1,601
Mark to market adjustments on derivative component of prepaid forward sale agreements and indexed debt instruments	(42)	(56)	(1,604)
Interest and dividend income	115	116	111
Other, net	13	28	13
Investment income (loss), net	81	296	576
NBCUniversal Media LLC [Member]
Investment income (loss), net	$ 5	$ 27	$ 17

Investments (Fair Value Method Investments) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Fair value equity securities held as collateral		$ 523
Obligations under prepaid forward sale agreements		119
Derivative component of prepaid forward sale agreements		356
Total liabilities associated with prepaid forward sales agreements	$ 0	475
Proceeds From Sales Of Businesses And Investments	$ 433	$ 666	$ 1,083
Clearwire LLC [Member]
Proceeds from sale of available-for-sale securities			$ 443
Fair Value Investment Shares Sold			89.0
Pre-tax gain realized on Clearwire			$ 443
Liberty Media Redemption Transaction [Member]
Shares Redeemed			6.3
Fair value of the shares delivered in the Liberty Media exchange transaction			$ 937
Proceeds From Sales Of Businesses And Investments			$ 417

Investments (Equity Method Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity in net (income) losses of investees, net	$ 325	$ (97)	$ 86
The Weather Channel [Member]
Total distribution from investee			152
Return of capital from investees			128
Goodwill Impairment Loss From Equity Method Investments	333
The Weather Channel [Member] \| NBCUniversal Media LLC [Member]
Total distribution from investee			152
Return of capital from investees			128
Goodwill Impairment Loss From Equity Method Investments	333
Hulu [Member]
Capital contribution agreement			247
Equity in net (income) losses of investees, net	106	20	142
Hulu [Member] \| NBCUniversal Media LLC [Member]
Capital contribution agreement			247
Equity in net (income) losses of investees, net	$ 106	$ 20	142
Houston Regional Sports Cable Network [Member]
Goodwill Impairment Loss From Equity Method Investments			249
Houston Regional Sports Cable Network [Member] \| NBCUniversal Media LLC [Member]
Goodwill Impairment Loss From Equity Method Investments			$ 249

Investments (Equity Method Investments Summarized Financial Information) (Details) - NBCUniversal Media LLC [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets [Summarized Financial Information]	$ 1,904	$ 1,529
Noncurrent assets [Summarized Financial Information]	3,584	4,572
Current liabilities [Summarized Financial Information]	1,225	1,235
Noncurrent liabilities [Summarized Financial Information]	4,879	4,162
Revenue [Summarized Financial Information]	3,944	3,756	$ 3,360
Operating Income [Summarized Financial Information]	(1,609)	483	645
Net income [Summarized Financial Information]	$ (1,820)	$ 243	$ 188

- Definition

The amount of current liabilities reported by an equity method investment of the entity.

+ References + Details

- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

+ References + Details

- Definition

The amount of noncurrent assets reported by an equity method investment of the entity.

+ References + Details

- Definition

The amount of noncurrent liabilities reported by an equity method investment of the entity.

+ References + Details

Investments (Cost Method Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Vox Media [Member]
Cost Method Investments,Original Cost	$ 200
Vox Media [Member] \| NBCUniversal Media LLC [Member]
Cost Method Investments,Original Cost	200
BuzzFeed [Member]
Cost Method Investments,Original Cost	200
BuzzFeed [Member] \| NBCUniversal Media LLC [Member]
Cost Method Investments,Original Cost	200
Air Touch [Member]
Fair value of AirTouch preferred stock related to redeemable preferred shares	1,700	$ 1,700
Aggregate redemption value	1,750
Carrying amount of redeemable preferred stock	1,600	1,600
Fair value of redeemable preferred shares	1,700	1,700
Nonredeemable preferred stock	100	$ 100
Preferred Shares Redeemable in April 2020 [Member]
Aggregate redemption value	$ 1,650

Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cable distribution system	$ 32,586	$ 31,655
Customer premise equipment	28,559	27,086
Other equipment	8,539	7,860
Buildings and leasehold improvements	10,829	8,650
Land	1,252	1,112
Property, Plant and Equipment, Gross, Total	81,765	76,363
Less: Accumulated depreciation	48,100	45,410
Property and equipment, net	33,665	30,953
NBCUniversal Media LLC [Member]
Buildings and leasehold improvements	6,543	5,780
Land	961	820
Furniture, fixtures and equipment	3,457	2,930
Construction in process	1,339	775
Property, Plant and Equipment, Gross, Total	12,300	10,305
Less: Accumulated depreciation	2,779	2,167
Property and equipment, net	$ 9,521	$ 8,138
Cable Distribution System [Member]
Weighted average original useful life (in years)	11 years
Customer Premise Equipment [Member]
Weighted average original useful life (in years)	6 years
Other Equipment [Member]
Weighted average original useful life (in years)	7 years
Buildings and Leasehold Improvements [Member]
Weighted average original useful life (in years)	25 years
Buildings and Leasehold Improvements [Member] \| NBCUniversal Media LLC [Member]
Weighted average original useful life (in years)	27 years
Machinery And Equipment [Member] \| NBCUniversal Media LLC [Member]
Weighted average original useful life (in years)	9 years
Comcast Center [Member]
Equity interest acquired			80.00%

Goodwill Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
Goodwill Rollforward (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Goodwill beginning balance	$ 27,316	$ 27,098
Acquisitions	5,661	227
Adjustments	(32)	(9)
Goodwill ending balance	32,945	27,316
NBCUniversal Media LLC [Member]
Goodwill beginning balance	14,908	14,882
Acquisitions	5,487	35
Adjustments	(31)	(9)
Goodwill ending balance	20,364	14,908
Cable Communications [Member]
Goodwill beginning balance	12,217	12,206
Acquisitions	173	11
Adjustments	(1)	0
Goodwill ending balance	12,389	12,217
Cable Networks [Member]
Goodwill beginning balance	12,948	13,130
Acquisitions	17	20
Adjustments	(18)	(202)
Goodwill ending balance	12,947	12,948
Cable Networks [Member] \| NBCUniversal Media LLC [Member]
Goodwill beginning balance	12,948	13,130
Acquisitions	17	20
Adjustments	(18)	(202)
Goodwill ending balance	12,947	12,948
Broadcast Television [Member]
Goodwill beginning balance	767	769
Acquisitions	39	0
Adjustments	0	(2)
Goodwill ending balance	806	767
Broadcast Television [Member] \| NBCUniversal Media LLC [Member]
Goodwill beginning balance	767	769
Acquisitions	39	0
Adjustments	0	(2)
Goodwill ending balance	806	767
Filmed Entertainment [Member]
Goodwill beginning balance	211	1
Acquisitions	58	15
Adjustments	(2)	195
Goodwill ending balance	267	211
Filmed Entertainment [Member] \| NBCUniversal Media LLC [Member]
Goodwill beginning balance	211	1
Acquisitions	58	15
Adjustments	(2)	195
Goodwill ending balance	267	211
Theme Parks [Member]
Goodwill beginning balance	982	982
Acquisitions	5,373	0
Adjustments	(11)	0
Goodwill ending balance	6,344	982
Theme Parks [Member] \| NBCUniversal Media LLC [Member]
Goodwill beginning balance	982	982
Acquisitions	5,373	0
Adjustments	(11)	0
Goodwill ending balance	6,344	982
Corporate and Other [Member]
Goodwill beginning balance	191	10
Acquisitions	1	181
Adjustments	0	0
Goodwill ending balance	$ 192	$ 191

Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Franchise rights	$ 59,364	$ 59,364
Accumulated amortization	(9,868)	(10,170)
Total	86,178	86,514
NBCUniversal Media LLC [Member]
Accumulated amortization	(5,654)	(4,829)
Total	19,460	19,016
Customer relationships
Finite-lived intangible assets, gross carrying amount	13,396	15,129
Accumulated amortization	$ (4,442)	(5,495)
Weighted average original useful life	19 years
Customer relationships \| NBCUniversal Media LLC [Member]
Finite-lived intangible assets, gross carrying amount	$ 13,107	13,093
Accumulated amortization	$ (4,291)	(3,636)
Weighted average original useful life	19 years
Software
Finite-lived intangible assets, gross carrying amount	$ 6,008	5,040
Accumulated amortization	$ (3,429)	(2,832)
Weighted average original useful life	4 years
Software \| NBCUniversal Media LLC [Member]
Finite-lived intangible assets, gross carrying amount	$ 849	657
Accumulated amortization	$ (431)	(329)
Weighted average original useful life	5 years
Other agreements and rights
Finite-lived intangible assets, gross carrying amount	$ 1,994	1,456
Accumulated amortization	$ (798)	(721)
Weighted average original useful life	18 years
Other agreements and rights \| NBCUniversal Media LLC [Member]
Finite-lived intangible assets, gross carrying amount	$ 1,996	1,556
Accumulated amortization	$ (932)	(864)
Weighted average original useful life	19 years
Trade names
Indefinite Lived Intangible Assets Excluding Goodwill	$ 2,857	3,083
Trade names \| NBCUniversal Media LLC [Member]
Indefinite Lived Intangible Assets Excluding Goodwill	2,857	3,059
FCC Licenses
Indefinite Lived Intangible Assets Excluding Goodwill	651	651
FCC Licenses \| NBCUniversal Media LLC [Member]
Indefinite Lived Intangible Assets Excluding Goodwill	651	651
Cable franchise renewal costs and contractual operating rights [Member]
Finite-lived intangible assets, gross carrying amount	1,499	1,418
Accumulated amortization	$ (849)	(792)
Weighted average original useful life	9 years
Patents and other technology rights [Member]
Finite-lived intangible assets, gross carrying amount	$ 409	373
Accumulated amortization	$ (350)	$ (330)
Weighted average original useful life	7 years

Goodwill and Other Intangible Assets (Amortization of Intangible Assets) (Details) $ in Millions	Dec. 31, 2015 USD ($)
Future amortization expense, 2016	$ 1,785
Future amortization expense, 2017	1,612
Future amortization expense, 2018	1,365
Future amortization expense, 2019	1,039
Future amortization expense, 2020	902
NBCUniversal Media LLC [Member]
Future amortization expense, 2016	812
Future amortization expense, 2017	789
Future amortization expense, 2018	776
Future amortization expense, 2019	777
Future amortization expense, 2020	$ 781

Long-Term Debt (Details) £ in Millions, $ in Millions	Dec. 31, 2015 GBP (£)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 GBP (£)	Dec. 31, 2014 USD ($)
Commercial paper		$ 975		$ 845
Revolving credit facilities		0		0
Debt issuance costs, premiums, discounts and fair value adjustments for hedged positions		(262)		(195)
Total debt		52,621		48,081
Less: Current portion		3,627		4,217
Long-term debt		48,994		43,864
NBCUniversal Media LLC [Member]
Debt issuance costs, premiums, discounts and fair value adjustments for hedged positions		(12)		(7)
Total debt		12,494		10,237
Less: Current portion		1,163		1,023
Long-term debt		$ 11,331		9,214
Weighted average interest rate	4.12%	4.12%
Commercial Paper Program
Weighted average interest rate	0.62%	0.62%
Revolving bank credit facility [Member]
Weighted average interest rate	0.00%	0.00%
Senior notes with maturities of 5 years or less, at face value [Member]
Senior notes		$ 14,300		15,223
Weighted average interest rate	4.40%	4.40%
Senior notes with maturities of 5 years or less, at face value [Member] \| NBCUniversal Media LLC [Member]
Senior notes		$ 3,000		2,000
Weighted average interest rate	4.39%	4.39%
Senior notes with maturities between 5 and 10 years, at face value [Member]
Senior notes		$ 9,630		10,530
Weighted average interest rate	4.24%	4.24%
Senior notes with maturities between 5 and 10 years, at face value [Member] \| NBCUniversal Media LLC [Member]
Senior notes		$ 3,000		5,000
Weighted average interest rate	3.88%	3.88%
Senior notes with maturities greater than 10 years, at face value [Member]
Senior notes		$ 23,925		20,989
Weighted average interest rate	5.63%	5.63%
Senior notes with maturities greater than 10 years, at face value [Member] \| NBCUniversal Media LLC [Member]
Senior notes		$ 3,200		3,200
Weighted average interest rate	5.62%	5.62%
Other Including Capital Lease Obligations [Member]
Other, including capital lease obligations		$ 794		689
Other Including Capital Lease Obligations [Member] \| NBCUniversal Media LLC [Member]
Other, including capital lease obligations		47		44
Notes 5.50% Due 2029 [Member]
Senior notes	£ 625	921	£ 625	974
Universal Studios Japan Term Loans [Member]
Universal Studios Japan Term Loans		$ 3,259		0
Weighted average interest rate	2.74%	2.74%
Universal Studios Japan Term Loans [Member] \| NBCUniversal Media LLC [Member]
Universal Studios Japan Term Loans		$ 3,259		$ 0
Weighted average interest rate	2.74%	2.74%

Long-Term Debt (Debt Maturities) (Details) $ in Millions	Dec. 31, 2015 USD ($)
2016	$ 3,627
2017	2,695
2018	4,194
2019	2,445
2020	6,076
Thereafter	33,846
NBCUniversal Media LLC [Member]
2016	1,163
2017	120
2018	127
2019	226
2020	4,657
Thereafter	$ 6,213
2016
Weighted average interest rate	2.79%
2016 \| NBCUniversal Media LLC [Member]
Weighted average interest rate	2.87%
2017
Weighted average interest rate	6.75%
2017 \| NBCUniversal Media LLC [Member]
Weighted average interest rate	3.45%
2018
Weighted average interest rate	4.11%
2018 \| NBCUniversal Media LLC [Member]
Weighted average interest rate	2.79%
2019
Weighted average interest rate	3.14%
2019 \| NBCUniversal Media LLC [Member]
Weighted average interest rate	3.05%
2020
Weighted average interest rate	4.09%
2020 \| NBCUniversal Media LLC [Member]
Weighted average interest rate	3.77%
Thereafter [Member]
Weighted average interest rate	5.23%
Thereafter [Member] \| NBCUniversal Media LLC [Member]
Weighted average interest rate	4.78%

Long-Term Debt (Debt Borrowings)(Details) $ in Millions	12 Months Ended
Long-Term Debt (Debt Borrowings)(Details) $ in Millions	Dec. 31, 2015 USD ($)
Senior 4.60% Notes Due 2045 [Member]
Principal amount	$ 1,700
Interest rate	4.60%
Maturity date	2045
Senior 3.375% Notes Due 2025 [Member]
Principal amount	$ 1,500
Interest rate	3.375%
Maturity date	2025
Senior 4.60% Notes Due 2046 [Member]
Principal amount	$ 1,490
Interest rate	4.60%
Maturity date	2046
Senior 4.40% Notes Due 2035 [Member]
Principal amount	$ 800
Interest rate	4.40%
Maturity date	2035
Current Year Borrowings [Member]
Principal amount	$ 5,490

Long-term Debt (Debt Repayments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Repurchases and repayments of debt	$ 4,378	$ 3,175	$ 2,444
Loss on early extinguishment of debt	47
NBCUniversal Media LLC [Member]
Repurchases and repayments of debt	1,022	$ 906	$ 92
NBCUniversal Senior 3.65% Notes Due 2015 [Member]
Repurchases and repayments of debt	$ 1,000
Interest rate	3.65%
Maturity date	2015
NBCUniversal Senior 3.65% Notes Due 2015 [Member] \| NBCUniversal Media LLC [Member]
Repurchases and repayments of debt	$ 1,000
Interest rate	3.65%
Maturity date	2015
Senior 5.90% Notes Due 2016 [Member]
Repurchases and repayments of debt	$ 1,000
Interest rate	5.90%
Maturity date	2016
Senior 6.50% Notes Due 2015 [Member]
Repurchases and repayments of debt	$ 900
Interest rate	6.50%
Maturity date	2015
Senior 5.85% Notes Due 2015 [Member]
Repurchases and repayments of debt	$ 750
Interest rate	5.85%
Maturity date	2015
Senior 8.75% Notes Due 2015 [Member]
Repurchases and repayments of debt	$ 673
Interest rate	8.75%
Maturity date	2015
Other Long-Term Debt [Member]
Repurchases and repayments of debt	$ 55

Long-Term Debt (Narrative) (Details) $ in Millions, ¥ in Billions		12 Months Ended
	Nov. 13, 2015 JPY (¥)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Long-term Debt, Fair Value		$ 58,000	$ 55,300
Amounts available under revolving credit facilities		6,400
Unused irrevocable standby letters of credit		464
Revolver Line of credit amount outstanding		0	0
NBCUniversal Media LLC [Member]
Long-term Debt, Fair Value		13,400	$ 11,500
NBCUniversal Enterprise [Member] \| NBCUniversal Media LLC [Member]
Related Party Aggregate Principal Amount Senior Notes Not Subject To Guarantee		4,000
Related Party Credit Facility Not Subject To Guarantee		1,350
Related Party Liquidation Preference Preferred Stock Not Subject To Guarantee		725
Commercial Paper Program
Commercial Paper Capacity		$ 6,250
NBCUniversal Enterprise Credit Facility [Member]
Debt Instrument, Maturity Date, Description		March 2018
Borrowing margin for LIBOR based borrowings		1.00%
Amounts available under revolving credit facilities		$ 775
Credit facility borrowing capacity		1,350
Comcast And Comcast Cable Debt Securities [Member] \| NBCUniversal Media LLC [Member]
Guarantee Obligations Current Principal Balance		$ 35,100
Comcast And Comcast Cable Communications, LLC Revolving Credit Facility [Member]
Debt Instrument, Maturity Date, Description		June 2017
Borrowing margin for LIBOR based borrowings		1.00%
Credit facility borrowing capacity		$ 6,250
Comcast And Comcast Cable Communications, LLC Revolving Credit Facility [Member] \| NBCUniversal Media LLC [Member]
Revolver Line of credit amount outstanding		0
NBCUniversal Enterprise Commercial Paper [Member]
Commercial Paper Capacity		$ 1,350
Universal Studios Japan Term Loans [Member]
Debt Instrument, Maturity Date, Description	November 2020
Universal Studios Japan Long-term Debt \| ¥	¥ 400
Universal Studios Japan Term Loans [Member] \| NBCUniversal Media LLC [Member]
Debt Instrument, Maturity Date, Description	November 2020
Universal Studios Japan Long-term Debt \| ¥	¥ 400

Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Trading securities	$ 22	$ 523
Available-for-sale securities	133	132
Interest rate swap agreements	53	84
Other [assets]	17	71
Fair Value, Assets Measured on Recurring Basis, Total	225	810
Derivative component of prepaid forward sale agreements and indexed debt instruments	5	361
Contractual obligations	0	883
Contingent consideration	0	644
Other [liabilities]	86	8
Fair Value Liabilities Measured On Recurring Basis, Total	91	1,896
Fair Value, Inputs, Level 1 [Member]
Trading securities	22	523
Available-for-sale securities	0	1
Interest rate swap agreements	0	0
Other [assets]	0	0
Fair Value, Assets Measured on Recurring Basis, Total	22	524
Derivative component of prepaid forward sale agreements and indexed debt instruments	0	0
Contractual obligations	0	0
Contingent consideration	0	0
Other [liabilities]	0	0
Fair Value Liabilities Measured On Recurring Basis, Total	0	0
Fair Value, Inputs, Level 2 [Member]
Trading securities	0	0
Available-for-sale securities	123	121
Interest rate swap agreements	53	84
Other [assets]	5	64
Fair Value, Assets Measured on Recurring Basis, Total	181	269
Derivative component of prepaid forward sale agreements and indexed debt instruments	5	361
Contractual obligations	0	0
Contingent consideration	0	0
Other [liabilities]	86	8
Fair Value Liabilities Measured On Recurring Basis, Total	91	369
Fair Value, Inputs, Level 3 [Member]
Trading securities	0	0
Available-for-sale securities	10	10
Interest rate swap agreements	0	0
Other [assets]	12	7
Fair Value, Assets Measured on Recurring Basis, Total	22	17
Derivative component of prepaid forward sale agreements and indexed debt instruments	0	0
Contractual obligations	0	883
Contingent consideration	0	644
Other [liabilities]	0	0
Fair Value Liabilities Measured On Recurring Basis, Total	$ 0	$ 1,527

Fair Value Disclosure (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Adjustments to capitalized film and stage play production costs	$ 42	$ 26	$ 167
NBCUniversal Media LLC [Member]
Adjustments to capitalized film and stage play production costs	42	$ 26	$ 167
Contingent Consideration Settlement [Member]
Contingent Consideration, Amount of Settlement Payment	450
Gain related to contingent consideration settlement	240
Contractual Obligations [Member]
Carrying value of contractual obligation	1,100
Contractual Obligations [Member] \| NBCUniversal Media LLC [Member]
Carrying value of contractual obligation	$ 1,100

Pension Plans and Postretirement Benefits (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Severance costs	$ 181	$ 152	$ 160
Multiemployer Plans Funded Status	At least 80 percent
NBCUniversal Media LLC [Member]
Severance costs	$ 113	113	116
Multiemployer Plans Funded Status	At least 80 percent
Pension Benefits [Member]
Multiemployer plan contributions	$ 77	58	59
Contribution to fully fund and settle plan			55
Reclassification adjustment from accumulated other comprehensive income before tax			74
Pension Benefits [Member] \| NBCUniversal Media LLC [Member]
Multiemployer plan contributions	77	58	59
Deferred Compensation Plans [Member]
Cash surrender value of life insurance policies	658	628
Retirement Investment Plans [Member]
Expenses related to retirement investment plans	416	379	324
Retirement Investment Plans [Member] \| NBCUniversal Media LLC [Member]
Expenses related to retirement investment plans	174	165	152
NBCUniversal Qualified Pension Plan [Member]
Contribution to fully fund and settle plan	20
Reclassification adjustment from accumulated other comprehensive income before tax	27
NBCUniversal Qualified Pension Plan [Member] \| NBCUniversal Media LLC [Member]
Benefit obligations in excess of plan assets	67	51
Contribution to fully fund and settle plan	20
Reclassification adjustment from accumulated other comprehensive income before tax	27
Postretirement and Other Benefits [Member]
Multiemployer plan contributions	119	125	98
Postretirement and Other Benefits [Member] \| NBCUniversal Media LLC [Member]
Multiemployer plan contributions	$ 119	$ 125	$ 98

Pension Plans and Postretirement Benefits (Information On Our Pension Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Pension Benefits [Member]
Benefit obligation	$ 309	$ 581	$ 498
Fair value of plan assets	0	242	220
Plan funded status and recorded benefit obligation	(309)	(339)	(278)
Portion of benefit obligation not yet recognized in benefits expense	14	53	(3)
Benefits expense	13	$ 14	$ 12
Expected return on plan assets		5.00%	5.00%
Pension Benefits [Member] \| NBCUniversal Media LLC [Member]
Benefit obligation	309	$ 581	$ 498
Fair value of plan assets	0	242	220
Plan funded status and recorded benefit obligation	(309)	(339)	(278)
Portion of benefit obligation not yet recognized in benefits expense	14	53	(3)
Benefits expense	$ 13	$ 14	$ 12
Expected return on plan assets		5.00%	5.00%
Pension Benefits [Member] \| Minimum [Member]
Discount rate	4.31%	3.75%	4.50%
Pension Benefits [Member] \| Minimum [Member] \| NBCUniversal Media LLC [Member]
Discount rate	4.31%	3.75%	4.50%
Pension Benefits [Member] \| Maximum [Member]
Discount rate	4.40%	4.25%	5.25%
Pension Benefits [Member] \| Maximum [Member] \| NBCUniversal Media LLC [Member]
Discount rate	4.40%	4.25%	5.25%
Postretirement Benefits [Member]
Benefit obligation	$ 820	$ 837	$ 633
Plan funded status and recorded benefit obligation	(820)	(837)	(633)
Portion of benefit obligation not yet recognized in benefits expense	(33)	46	(110)
Benefits expense	75	$ 59	65
Discount rate		4.25%
Postretirement Benefits [Member] \| NBCUniversal Media LLC [Member]
Benefit obligation	197	$ 209	158
Plan funded status and recorded benefit obligation	(197)	(209)	(158)
Portion of benefit obligation not yet recognized in benefits expense	(27)	(3)	(44)
Benefits expense	$ 15	$ 12	$ 14
Discount rate	4.73%	4.25%	5.25%
Postretirement Benefits [Member] \| Minimum [Member]
Discount rate	4.70%		5.00%
Postretirement Benefits [Member] \| Maximum [Member]
Discount rate	4.73%		5.25%

Pension Plans and Postretirement Benefits (Deferred Compensation Plans) (Details) - Deferred Compensation Plans [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Benefit obligation	$ 2,038	$ 1,774	$ 1,434
Interest expense	171	149	128
NBCUniversal Media LLC [Member]
Benefit obligation	417	349	250
Interest expense	$ 28	$ 24	$ 18

Pension Plans and Postretirement Benefits (Benefit Obligation and Expense for Our Split-Dollar Life Insurance Agreements) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Postretirement and Pension Plans
Benefit obligation	$ 233	$ 217	$ 212
Other operating and administrative expenses	$ 67	$ 52	$ 50

Equity (Narrative) (Details) $ in Billions	12 Months Ended
Equity (Narrative) (Details) $ in Billions	Dec. 31, 2015 USD ($)
Number of votes entitled of each class B common stock	15
New Authorization [Member]
Stock Repurchase Program Authorized Amount	$ 10
Class A Common Stock [Member]
Voting power	66.67%
Class B Common Stock [Member]
Voting power	33.33%

Equity (Changes in Common Stock) (Details) - shares	12 Months Ended
Equity (Changes in Common Stock) (Details) - shares	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Repurchases and retirements of common stock	116,000,000	81,000,000	49,000,000
Class A Common Stock [Member]
Common Stock, Shares, Outstanding, Beginning Balance	2,131,137,862	2,138,000,000	2,122,000,000
Stock compensation plans	12,000,000	13,000,000	14,000,000
Repurchases and retirements of common stock	(62,000,000)	(22,000,000)	0
Employee stock purchase plan	2,000,000	2,000,000	2,000,000
Share Reclassification of Class A Special common stock	346,000,000
Other	4,000,000
Common Stock, Shares, Outstanding, Ending Balance	2,432,953,988	2,131,137,862	2,138,000,000
Class A Special Common Stock [Member]
Common Stock, Shares, Outstanding, Beginning Balance	400,484,837	459,000,000	508,000,000
Stock compensation plans	0	0	0
Repurchases and retirements of common stock	(54,000,000)	(59,000,000)	(49,000,000)
Employee stock purchase plan	0	0	0
Share Reclassification of Class A Special common stock	(346,000,000)
Other	0
Common Stock, Shares, Outstanding, Ending Balance		400,484,837	459,000,000
Class B Common Stock [Member]
Common Stock, Shares, Outstanding, Beginning Balance	9,444,375	9,000,000	9,000,000
Stock compensation plans	0	0	0
Repurchases and retirements of common stock	0	0	0
Employee stock purchase plan	0	0	0
Other	0
Common Stock, Shares, Outstanding, Ending Balance	9,444,375	9,444,375	9,000,000

Equity (Aggregate Share Repurchases) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity
Cash consideration	$ 6,750	$ 4,251	$ 2,000
Shares repurchased	116	81	49

Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Unrealized gains (losses) on marketable securities	$ 1	$ 1
Deferred gains (losses) on cash flow hedges	(46)	(4)
Unrecognized gains (losses) on employee benefit obligations	6	(68)
Cumulative translation adjustments	(135)	(75)
Accumulated other comprehensive income (loss), net of deferred taxes	$ (174)	$ (146)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details

Share-Based Compensation (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based compensation arrangement by share-based payment award, award vesting period in years	5 years
Income Tax Effects Allocated Directly to Equity, Other	$ 311	$ 299	$ 244
NBCUniversal Media LLC [Member]
Share-based compensation arrangement by share-based payment award, award vesting period in years	5 years
Stock Options [Member]
Unrecognized pretax compensation expense on nonvested awards	$ 337
Unrecognized pretax compensation expense on nonvested awards, weighted average period of recognition (in years)	1 year 9 months 18 days
Period from grant date that an equity-based award expires	10 years
Stock Options [Member] \| NBCUniversal Media LLC [Member]
Unrecognized pretax compensation expense on nonvested awards	$ 21
Unrecognized pretax compensation expense on nonvested awards, weighted average period of recognition (in years)	2 years
Period from grant date that an equity-based award expires	10 years
Restricted Share Units [Member]
Unrecognized pretax compensation expense on nonvested awards	$ 635
Unrecognized pretax compensation expense on nonvested awards, weighted average period of recognition (in years)	1 year 9 months 18 days
Restricted Share Units [Member] \| NBCUniversal Media LLC [Member]
Unrecognized pretax compensation expense on nonvested awards	$ 150
Unrecognized pretax compensation expense on nonvested awards, weighted average period of recognition (in years)	1 year 9 months 18 days

Share-Based Compensation (Recognized Share-Based Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Recognized share-based compensation expense	$ 455	$ 414	$ 334
NBCUniversal Media LLC [Member]
Recognized share-based compensation expense	94	91	62
Stock Options [Member]
Recognized share-based compensation expense	157	160	139
Stock Options [Member] \| NBCUniversal Media LLC [Member]
Recognized share-based compensation expense	10	16	15
Restricted Share Units [Member]
Recognized share-based compensation expense	273	231	175
Restricted Share Units [Member] \| NBCUniversal Media LLC [Member]
Recognized share-based compensation expense	78	69	42
Employee Stock Purchase Plan [Member]
Recognized share-based compensation expense	25	23	20
Employee Stock Purchase Plan [Member] \| NBCUniversal Media LLC [Member]
Recognized share-based compensation expense	$ 6	$ 6	$ 5

Share-Based Compensation (Stock Options and Restricted Share Units) (Details) shares in Millions	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Stock options granted	18
Weighted-average exercise price, granted \| $ / shares	$ 59.39
Stock options outstanding	94
Weighted-average exercise price, outstanding \| $ / shares	$ 36.63
RSUs granted	9
Nonvested restricted share units	23
Weighted-average fair value at grant date of nonvested RSUs \| $ / shares	$ 44.19

Share-Based Compensation (Restricted Share Units and Stock Option Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted average fair value of RSUs	$ 58.81	$ 47.91	$ 38.28
Fair value of stock options	$ 11.78	$ 11.11	$ 8.8
Dividend yield	1.70%	1.80%	1.90%
Expected volatility	23.00%	24.00%	25.00%
Risk-free interest rate	1.60%	2.20%	1.30%
Expected option life (in years)	6 years	6 years 6 months	7 years
NBCUniversal Media LLC [Member]
Weighted average fair value of RSUs	$ 59.37	$ 48.04	$ 37.79
Fair value of stock options	$ 11.79	$ 11.09	$ 8.86
Dividend yield	1.70%	1.80%	1.90%
Expected volatility	23.00%	24.00%	25.20%
Risk-free interest rate	1.60%	2.20%	1.30%
Expected option life (in years)	6 years	6 years 6 months	7 years

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign income before taxes		$ 704	$ 385	$ 524
Liability for uncertain tax positions, noncurrent		1,100
Unrecognized tax benefits that would impact effective tax rate		592
Unrecognized tax benefits, interest on income taxes accrued		510	452
Change In Income Tax Expense Related To Effectively Settled Uncertain Tax Positions	$ 759
Income Tax Effects Allocated Directly to Equity, Other		311	299	$ 244
Franchise Rights [Member]
Net deferred tax liability, franchise rights		23,000
Uncertain Tax Positions Indemnified By GE [Member]
Liability for uncertain tax positions, noncurrent		220
Unrecognized tax benefits, interest on income taxes accrued		49	$ 44
Other Comprehensive Income (Loss) [Member]
Income Tax Effects Allocated Directly to Equity, Other		28
Domestic Tax Authority
Operating loss carryforwards		$ 135
Operating loss carryforwards expiration dates		Dec. 31, 2035
Foreign Tax Authority
Operating loss carryforwards		$ 700
Operating loss carryforwards expiration dates		Dec. 31, 2025
Other Acquisitions [Member]
Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net1		$ 132

Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal	$ 3,210	$ 2,392	$ 3,183
State	570	174	581
Foreign	221	142	200
Current income tax expense (benefit)	4,001	2,708	3,964
Federal	890	1,000	(76)
State	66	173	108
Foreign deferred income tax expense	2	(8)	(16)
Deferred income tax expense (benefit)	958	1,165	16
Income tax expense	4,959	3,873	3,980
NBCUniversal Media LLC [Member]
Foreign	81	33	77
Foreign deferred income tax expense	2	(8)	(16)
Deferred income tax expense (benefit)	(11)	(12)	(10)
Withholding tax expense	139	108	123
U.S. domestic tax expense	5	10	22
Income tax expense	$ 227	$ 143	$ 206

Income Taxes (Federal Statutory) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal tax at statutory rate	$ 4,680	$ 4,363	$ 3,890
State income taxes, net of federal benefit	326	329	319
Foreign income taxes, net of federal credit	13	0	15
Nontaxable income attributable to noncontrolling interests	(69)	(62)	(103)
Other adjustments	(79)	(114)	(313)
Income tax expense	4,959	3,873	3,980
Uncertain And Effectively Settled Tax Positions, Net [Member]
Other adjustments	15	(408)	58
Accrued Interest On Uncertain And Effectively Settled Tax Positions Net [Member]
Other adjustments	$ 73	$ (235)	$ 114

Income Taxes (Components of Net Deferred Tax Liability) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Net operating loss carryforwards	$ 551	$ 448
Nondeductible accruals and other	3,589	3,383
Less: Valuation allowance	342	375
Deferred Tax Assets, Net	4,014	3,572
DeferredIncomeTaxLiabilities	37,580	36,336
Total deferred tax liabilities	33,566	32,764
Differences Between Book and Tax Basis of Property and Equipment and Intangible Assets [Member]
Deferred tax liabilities, other	36,392	35,112
Differences Between Book and Tax Basis of Investments [Member]
Deferred tax asset, other	101	0
Deferred tax liabilities, other	0	186
Differences Between Book and Tax Basis of Indexed Debt Securities [Member]
Deferred tax liabilities, other	457	534
Differences Between Book and Tax Basis of Foreign Subsidiaries [Member]
Deferred tax liabilities, other	731	504
Differences Between Book and Tax Basis of Long-Term Debt [Member]
Deferred tax asset, other	$ 115	$ 116

Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Beginning balance	$ 1,171	$ 1,701	$ 1,573
Additions based on tax positions related to the current year	67	63	90
Additions based on tax positions related to prior years	98	111	201
Additions from acquired subsidiaries	0	0	268
Reductions for tax positions of prior years	(84)	(220)	(141)
Reductions due to expiration of statutes of limitations	(41)	(448)	(3)
Settlements with taxing authorities	(75)	(36)	(287)
Ending balance	$ 1,136	$ 1,171	$ 1,701

Supplemental Financial Information (Receivables)(Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Receivables, gross	$ 7,595	$ 6,885
Less: Allowance for returns and customer incentives	473	359
Less: Allowance for doubtful accounts	226	205
Receivables, net	6,896	6,321
Noncurrent receivables, net	721	569
NBCUniversal Media LLC [Member]
Receivables, gross	5,949	5,258
Less: Allowance for returns and customer incentives	469	356
Less: Allowance for doubtful accounts	69	60
Receivables, net	5,411	4,842
Noncurrent receivables, net	$ 721	$ 569

Supplemental Financial Information (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Unrealized gains (losses) on marketable securities	$ 1	$ 1
Deferred gains (losses) on cash flow hedges	(46)	(4)
Unrecognized gains (losses) on employee benefit obligations	6	(68)
Cumulative translation adjustments	(135)	(75)
Accumulated other comprehensive income (loss), net of deferred taxes	(174)	(146)
NBCUniversal Media LLC [Member]
Deferred gains (losses) on cash flow hedges	(1)	20
Unrecognized gains (losses) on employee benefit obligations	(1)	(61)
Cumulative translation adjustments	(210)	(118)
Accumulated other comprehensive income (loss), net of deferred taxes	$ (212)	$ (159)

- Definition

+ References + Details

Supplemental Financial Information (Cash Payments for Interest and Income Taxes)(Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest	$ 2,443	$ 2,389	$ 2,355
Income taxes	3,726	3,668	3,946
NBCUniversal Media LLC [Member]
Interest	456	485	462
Income taxes	$ 182	$ 174	$ 205

Supplemental Financial Information (Noncash Investing and Financing Activities)(Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Mar. 19, 2013
Total noncash consideration transferred related to the Redemption Transaction			$ 6,000
Dividends payable, amount	$ 612	$ 572	$ 509
Dividends payable, amount per share	$ 0.25	$ 0.225	$ 0.195
Capital expenditures incurred but not yet paid	$ 1,100	$ 797	$ 872
Fair Value Equity Securities Settlement	517	3,200	1,400
NBCUniversal Media LLC [Member]
Capital expenditures incurred but not yet paid	287	$ 148	306
Contribution from member	$ 252
Revolving Credit Facility Member
Consideration transferred related to the Redemption Transaction and purchase of certain properties			1,250
NBCUniversal Enterprise Senior Debt Securities [Member]
Consideration transferred related to the Redemption Transaction and purchase of certain properties			4,000
NBCUniversal Enterprise Preferred Stock [Member]
Consideration transferred related to the Redemption Transaction and purchase of certain properties			725
NBCUniversal Redemption Transaction [Member]
Remaining noncontrolling interest acquired				49.00%
Purchase of NBCUniversal noncontrolling interest			$ 16,700

Commitments and Contingencies (Narrative) (Details)	Dec. 31, 2015 numberofemployees
Number of employees covered under collective bargaining agreements	7,500
Percentage of employees covered under collective bargaining agreements that have expired or are scheduled to expire during the next fiscal year	10.00%
NBCUniversal Media LLC [Member]
Number of employees covered under collective bargaining agreements	7,500
Percentage of employees covered under collective bargaining agreements that have expired or are scheduled to expire during the next fiscal year	10.00%

Commitments and Contingencies (Minimum Annual Commitments under the Programming License Agreements and Operating Leases) (Details) $ in Millions	Dec. 31, 2015 USD ($)
Operating leases future minimum payments, 2016	$ 452
Operating leases future minimum payments, 2017	412
Operating leases future minimum payments, 2018	370
Operating leases future minimum payments, 2019	324
Operating leases future minimum payments, 2020	284
Operating leases future minimum payments, thereafter	1,617
Programming and Talent Commitments [Member]
2016	6,405
2017	3,788
2018	4,474
2019	3,280
2020	4,357
Thereafter	23,061
NBCUniversal Media LLC [Member]
Operating leases future minimum payments, 2016	177
Operating leases future minimum payments, 2017	150
Operating leases future minimum payments, 2018	133
Operating leases future minimum payments, 2019	126
Operating leases future minimum payments, 2020	122
Operating leases future minimum payments, thereafter	1,018
NBCUniversal Media LLC [Member] \| Programming and Talent Commitments [Member]
2016	6,391
2017	3,783
2018	4,470
2019	3,280
2020	4,357
Thereafter	$ 23,061

Commitments and Contingencies (Rental expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Rent expense	$ 608	$ 580	$ 616
NBCUniversal Media LLC [Member]
Rent expense	$ 213	$ 222	$ 250

Financial Data by Business Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	$ 74,510	$ 68,775	$ 64,657
Operating income (loss) before depreciation and amortization									24,678	22,923	21,434
Depreciation and amortization									8,680	8,019	7,871
Operating income (loss)	4,002	$ 4,001	$ 4,105	$ 3,890	3,787	$ 3,745	$ 3,804	$ 3,568	15,998	14,904	13,563
Capital expenditures									8,499	7,420	6,596
Assets	166,574				159,186				166,574	159,186
NBCUniversal Media LLC [Member]
Revenue									28,462	25,428	23,650
Operating income (loss) before depreciation and amortization									6,358	5,588	4,732
Depreciation and amortization									1,539	1,495	1,411
Operating income (loss)									4,819	4,093	3,321
Capital expenditures									1,386	1,221	1,160
Assets	60,690				52,604				60,690	52,604
Non U S Customers [Member]
Revenue									5,800	4,400	4,800
Non U S Customers [Member] \| NBCUniversal Media LLC [Member]
Revenue									5,799	4,433	4,763
United States [Member] \| NBCUniversal Media LLC [Member]
Revenue									22,663	20,995	18,887
Cable Communications [Member]
Revenue									46,879	44,140	41,836
Operating income (loss) before depreciation and amortization									19,120	18,112	17,205
Depreciation and amortization									7,028	6,422	6,394
Operating income (loss)									12,092	11,690	10,811
Capital expenditures									$ 7,034	$ 6,154	$ 5,403
Cable segment revenue types as percentage of total cable revenue									100.00%	100.00%	100.00%
Assets	149,267				140,616				$ 149,267	$ 140,616
Cable Networks [Member]
Revenue									9,628	9,563	$ 9,201
Operating income (loss) before depreciation and amortization									3,499	3,589	3,501
Depreciation and amortization									784	748	734
Operating income (loss)									2,715	2,841	2,767
Capital expenditures									44	49	67
Assets	28,093				28,582				28,093	28,582
Cable Networks [Member] \| NBCUniversal Media LLC [Member]
Revenue									9,628	9,563	9,201
Operating income (loss) before depreciation and amortization									3,499	3,589	3,501
Depreciation and amortization									784	748	734
Operating income (loss)									2,715	2,841	2,767
Capital expenditures									44	49	67
Assets	28,093				28,582				28,093	28,582
Broadcast Television [Member]
Revenue									8,530	8,542	7,120
Operating income (loss) before depreciation and amortization									780	734	345
Depreciation and amortization									111	127	98
Operating income (loss)									669	607	247
Capital expenditures									117	76	65
Assets	7,871				6,806				7,871	6,806
Broadcast Television [Member] \| NBCUniversal Media LLC [Member]
Revenue									8,530	8,542	7,120
Operating income (loss) before depreciation and amortization									780	734	345
Depreciation and amortization									111	127	98
Operating income (loss)									669	607	247
Capital expenditures									117	76	65
Assets	7,871				6,806				7,871	6,806
Filmed Entertainment [Member]
Revenue									7,287	5,008	5,452
Operating income (loss) before depreciation and amortization									1,234	711	483
Depreciation and amortization									26	21	15
Operating income (loss)									1,208	690	468
Capital expenditures									14	11	9
Assets	4,255				4,185				4,255	4,185
Filmed Entertainment [Member] \| NBCUniversal Media LLC [Member]
Revenue									7,287	5,008	5,452
Operating income (loss) before depreciation and amortization									1,234	711	483
Depreciation and amortization									26	21	15
Operating income (loss)									1,208	690	468
Capital expenditures									14	11	9
Assets	4,255				4,185				4,255	4,185
Theme Parks [Member]
Revenue									3,339	2,623	2,235
Operating income (loss) before depreciation and amortization									1,464	1,096	943
Depreciation and amortization									292	273	300
Operating income (loss)									1,172	823	643
Capital expenditures									833	671	580
Assets	14,027				7,017				14,027	7,017
Reclassification of expenses due to a change in a contractual obligation									63	72	61
Theme Parks [Member] \| NBCUniversal Media LLC [Member]
Revenue									3,339	2,623	2,235
Operating income (loss) before depreciation and amortization									1,464	1,096	943
Depreciation and amortization									292	273	300
Operating income (loss)									1,172	823	643
Capital expenditures									833	671	580
Assets	14,027				7,017				14,027	7,017
Reclassification of expenses due to a change in a contractual obligation									63	72	61
Headquarters And Other [Member]
Revenue									14	13	31
Operating income (loss) before depreciation and amortization									(625)	(613)	(588)
Depreciation and amortization									326	326	264
Operating income (loss)									(951)	(939)	(852)
Capital expenditures									378	414	439
Assets	6,898				6,467				6,898	6,467
Headquarters And Other [Member] \| NBCUniversal Media LLC [Member]
Revenue									14	13	31
Operating income (loss) before depreciation and amortization									(625)	(613)	(588)
Depreciation and amortization									326	326	264
Operating income (loss)									(951)	(939)	(852)
Capital expenditures									378	414	439
Assets	6,898				6,467				6,898	6,467
NBCUniversal Eliminations [Member]
Revenue									(336)	(321)	(389)
Operating income (loss) before depreciation and amortization									62	71	48
Depreciation and amortization									0	0	0
Operating income (loss)									62	71	48
Capital expenditures									0	0	0
Assets	(454)				(453)				(454)	(453)
NBCUniversal Eliminations [Member] \| NBCUniversal Media LLC [Member]
Revenue									(336)	(321)	(389)
Operating income (loss) before depreciation and amortization									6	71	48
Depreciation and amortization									0	0	0
Operating income (loss)									6	71	48
Capital expenditures									0	0	0
Assets	(454)				(453)				(454)	(453)
NBCUniversal [Member]
Revenue									28,462	25,428	23,650
Operating income (loss) before depreciation and amortization									6,414	5,588	4,732
Depreciation and amortization									1,539	1,495	1,411
Operating income (loss)									4,875	4,093	3,321
Capital expenditures									1,386	1,221	1,160
Assets	60,690				52,604				60,690	52,604
Corporate and Other [Member]
Revenue									766	709	600
Operating income (loss) before depreciation and amortization									(898)	(778)	(489)
Depreciation and amortization									113	102	66
Operating income (loss)									(1,011)	(880)	(555)
Capital expenditures									79	45	33
Assets	4,783				5,198				4,783	5,198
Eliminations [Member]
Revenue									(1,597)	(1,502)	(1,429)
Operating income (loss) before depreciation and amortization									42	1	(14)
Depreciation and amortization									0	0	0
Operating income (loss)									42	1	(14)
Capital expenditures									0	0	$ 0
Assets	$ (48,166)				$ (39,232)				$ (48,166)	$ (39,232)
Cable Communications Segment Revenue Percentage-Video [Member]
Cable segment revenue types as percentage of total cable revenue									45.90%	47.10%	49.10%
Cable Communications Segment Revenue Percentage - High-speed Internet [Member]
Cable segment revenue types as percentage of total cable revenue									26.60%	25.60%	24.70%
Cable Communications Segment Revenue Percentage- Voice [Member]
Cable segment revenue types as percentage of total cable revenue									7.70%	8.30%	8.70%
Cable Communications Segment Revenue Percentage- Business Services [Member]
Cable segment revenue types as percentage of total cable revenue									10.10%	9.00%	7.70%
Cable Communications Segment Revenue Percentage- Advertising [Member]
Cable segment revenue types as percentage of total cable revenue									4.90%	5.40%	5.10%
Cable Communications Segment Revenue Percentage- Other [Member]
Cable segment revenue types as percentage of total cable revenue									4.80%	4.60%	4.70%
Cable Communications Segment Revenue Percentage- Franchise and other regulatory fees [Member]
Cable segment revenue types as percentage of total cable revenue									2.80%	2.80%	2.80%

Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
QuarterlyFinancialInformationDisclosure [Abstract]
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	$ 74,510	$ 68,775	$ 64,657
Operating income	4,002	4,001	4,105	3,890	3,787	3,745	3,804	3,568	15,998	14,904	13,563
Net income attributable to Parent	$ 1,971	$ 1,996	$ 2,137	$ 2,059	$ 1,925	$ 2,592	$ 1,992	$ 1,871	$ 8,163	$ 8,380	$ 6,816
Basic earnings per common share attributable to Comcast Corporation shareholders	$ 0.8	$ 0.81	$ 0.85	$ 0.82	$ 0.75	$ 1	$ 0.77	$ 0.72	$ 3.28	$ 3.24	$ 2.6
Diluted earnings per common share attributable to Comcast Corporation shareholders	0.79	0.8	0.84	0.81	0.74	0.99	0.76	0.71	3.24	3.2	2.56
Dividends declared per common share	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.225	$ 0.225	$ 0.225	$ 0.225	$ 1	$ 0.9	$ 0.78
Change In Income Tax Expense Related To Effectively Settled Uncertain Tax Positions						$ 759

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Condensed Consolidating Financial Information (Narrative) (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 13, 2015	Dec. 31, 2015
Comcast Holdings' ZONES due October 2029 [Member]
Debt Instrument, Maturity Date, Description		October 2029
Principal amount of debt securities subject to guarantee		$ 185
Comcast Holdings' ZONES due November 2029 [Member]
Debt Instrument, Maturity Date, Description		November 2029
Principal amount of debt securities not subject to guarantee		$ 62
Guarantor Subsidiaries [Member]
Principal amount of debt securities subject to guarantee		44,300
Maturing In Next Five Years [Member]
Principal amount of debt securities subject to guarantee		$ 10,700
NBCUniversal Enterprise Credit Facility [Member]
Debt Instrument, Maturity Date, Description		March 2018
NBCUniversal Enterprise Senior Debt Securities [Member]
Principal amount of debt securities subject to guarantee		$ 4,000
Universal Studios Japan Term Loans [Member]
Debt Instrument, Maturity Date, Description	November 2020
Principal amount of debt securities not subject to guarantee		$ 3,300

Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 2,295	$ 3,910	$ 1,718	$ 10,951
Investments [Current]	106	602
Receivables, net	6,896	6,321
Programming rights	1,213	839
Other current assets	1,793	1,859
Total current assets	12,303	13,531
Film and television costs	5,855	5,727
Investments	3,224	3,135
Property and equipment, net	33,665	30,953
Franchise rights	59,364	59,364
Goodwill	32,945	27,316	27,098
Other intangible assets, net	16,946	16,980
Other noncurrent assets, net	2,272	2,180
Total assets	166,574	159,186
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	6,215	5,638
Accrued participations and residuals	1,572	1,347
Accrued expenses and other current liabilities [condensed]	6,764	6,208
Current portion of long-term debt	3,627	4,217
Total current liabilities	18,178	17,410
Long-term debt, less current portion	48,994	43,864
Deferred income taxes	33,566	32,959
Other noncurrent liabilities	10,637	10,819
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	1,221	1,066
Equity:
Common stock	29	30
Other shareholders' equity	52,240	52,681
Total Comcast Corporation shareholders' equity	52,269	52,711
Noncontrolling interests	1,709	357
Total equity	53,978	53,068	51,058	49,796
Total liabilities and equity	166,574	159,186
Comcast Parent [Member]
Assets
Cash and cash equivalents	0	0	0	0
Investments [Current]	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	69	267
Total current assets	69	267
Film and television costs	0	0
Investments	33	36
Investments in and amounts due from subsidiaries eliminated upon consolidation	87,142	84,142
Property and equipment, net	210	199
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	12	11
Other noncurrent assets, net	1,301	1,086
Total assets	88,767	85,741
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	16	19
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities [condensed]	1,789	1,547
Current portion of long-term debt	1,149	1,650
Total current liabilities	2,954	3,216
Long-term debt, less current portion	31,106	27,478
Deferred income taxes	0	0
Other noncurrent liabilities	2,438	2,336
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	0	0
Equity:
Common stock	29	30
Other shareholders' equity	52,240	52,681
Total Comcast Corporation shareholders' equity	52,269	52,711
Noncontrolling interests	0	0
Total equity	52,269	52,711
Total liabilities and equity	88,767	85,741
Comcast Holdings [Member]
Assets
Cash and cash equivalents	0	0	0	0
Investments [Current]	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	0	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	111,241	103,420
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	147	145
Total assets	111,388	103,565
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities [condensed]	335	283
Current portion of long-term debt	0	0
Total current liabilities	335	283
Long-term debt, less current portion	130	123
Deferred income taxes	624	701
Other noncurrent liabilities	0	0
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	0	0
Equity:
Common stock	0	0
Other shareholders' equity	110,299	102,458
Total Comcast Corporation shareholders' equity	110,299	102,458
Noncontrolling interests	0	0
Total equity	110,299	102,458
Total liabilities and equity	111,388	103,565
CCCL Parent [Member]
Assets
Cash and cash equivalents	0	0	0	0
Investments [Current]	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	0	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	119,354	111,870
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	0	0
Total assets	119,354	111,870
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	1
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities [condensed]	290	280
Current portion of long-term debt	0	677
Total current liabilities	290	958
Long-term debt, less current portion	2,650	2,649
Deferred income taxes	0	0
Other noncurrent liabilities	0	0
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	0	0
Equity:
Common stock	0	0
Other shareholders' equity	116,414	108,263
Total Comcast Corporation shareholders' equity	116,414	108,263
Noncontrolling interests	0	0
Total equity	116,414	108,263
Total liabilities and equity	119,354	111,870
NBCUniversal Media Parent [Member]
Assets
Cash and cash equivalents	414	385	336	5,129
Investments [Current]	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	17	41
Total current assets	431	426
Film and television costs	0	0
Investments	430	378
Investments in and amounts due from subsidiaries eliminated upon consolidation	42,441	41,239
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	78	80
Total assets	43,380	42,123
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities [condensed]	389	331
Current portion of long-term debt	1,005	1,006
Total current liabilities	1,394	1,337
Long-term debt, less current portion	8,211	9,206
Deferred income taxes	66	67
Other noncurrent liabilities	1,087	1,143
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	0	0
Equity:
Common stock	0	0
Other shareholders' equity	32,622	30,370
Total Comcast Corporation shareholders' equity	32,622	30,370
Noncontrolling interests	0	0
Total equity	32,622	30,370
Total liabilities and equity	43,380	42,123
Comcast Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	1,881	3,525	1,382	5,822
Investments [Current]	106	602
Receivables, net	6,896	6,321
Programming rights	1,213	839
Other current assets	1,707	1,551
Total current assets	11,803	12,838
Film and television costs	5,855	5,727
Investments	2,761	2,721
Investments in and amounts due from subsidiaries eliminated upon consolidation	109,598	98,152
Property and equipment, net	33,455	30,754
Franchise rights	59,364	59,364
Goodwill	32,945	27,316
Other intangible assets, net	16,934	16,969
Other noncurrent assets, net	2,114	1,949
Total assets	274,829	255,790
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	6,199	5,618
Accrued participations and residuals	1,572	1,347
Accrued expenses and other current liabilities [condensed]	3,961	3,767
Current portion of long-term debt	1,473	884
Total current liabilities	13,205	11,616
Long-term debt, less current portion	6,897	4,408
Deferred income taxes	34,098	33,127
Other noncurrent liabilities	7,258	7,484
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	1,221	1,066
Equity:
Common stock	0	0
Other shareholders' equity	210,441	197,732
Total Comcast Corporation shareholders' equity	210,441	197,732
Noncontrolling interests	1,709	357
Total equity	212,150	198,089
Total liabilities and equity	274,829	255,790
Elimination and Consolidation Adjustments [Member]
Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Investments [Current]	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	0	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	(469,776)	(438,823)
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	(1,368)	(1,080)
Total assets	(471,144)	(439,903)
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities [condensed]	0	0
Current portion of long-term debt	0	0
Total current liabilities	0	0
Long-term debt, less current portion	0	0
Deferred income taxes	(1,222)	(936)
Other noncurrent liabilities	(146)	(144)
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	0	0
Equity:
Common stock	0	0
Other shareholders' equity	(469,776)	(438,823)
Total Comcast Corporation shareholders' equity	(469,776)	(438,823)
Noncontrolling interests	0	0
Total equity	(469,776)	(438,823)
Total liabilities and equity	$ (471,144)	$ (439,903)

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Income) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Service revenue									$ 74,510	$ 68,775	$ 64,657
Revenue	$ 19,245	$ 18,669	$ 18,743	$ 17,853	$ 17,732	$ 16,791	$ 16,844	$ 17,408	74,510	68,775	64,657
Costs and Expenses:
Programming and production									22,550	20,912	19,670
Other operating and administrative									21,339	19,854	18,575
Advertising, marketing and promotion									5,943	5,086	4,978
Depreciation									6,781	6,337	6,254
Amortization									1,899	1,682	1,617
Costs and expenses, total									58,512	53,871	51,094
Operating income (loss)	4,002	4,001	4,105	3,890	3,787	3,745	3,804	3,568	15,998	14,904	13,563
Other Income (Expense):
Interest expense									(2,702)	(2,617)	(2,574)
Investment income (loss), net									81	296	576
Equity in net income (losses) of investees, net									(325)	97	(86)
Other income (expense), net									320	(215)	(364)
Nonoperating income (Expense), Total									(2,626)	(2,439)	(2,448)
Income (loss) before income taxes									13,372	12,465	11,115
Income tax (expense) benefit									(4,959)	(3,873)	(3,980)
Net income (loss)									8,413	8,592	7,135
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									(250)	(212)	(319)
Net income (loss) attributable to Parent	$ 1,971	$ 1,996	$ 2,137	$ 2,059	$ 1,925	$ 2,592	$ 1,992	$ 1,871	8,163	8,380	6,816
Comprehensive income attributable to Parent									8,135	8,178	6,883
Elimination and Consolidation Adjustments [Member]
Service revenue									0	0	0
Management fee revenue									(1,982)	(1,868)	(1,771)
Revenue									(1,982)	(1,868)	(1,771)
Costs and Expenses:
Programming and production									0	0	0
Other operating and administrative									(1,982)	(1,868)	(1,771)
Advertising, marketing and promotion									0	0	0
Depreciation									0	0	0
Amortization									0	0	0
Costs and expenses, total									(1,982)	(1,868)	(1,771)
Operating income (loss)									0	0	0
Other Income (Expense):
Interest expense									0	0	0
Investment income (loss), net									0	0	0
Equity in net income (losses) of investees, net									(34,116)	(34,161)	(27,860)
Other income (expense), net									0	0	0
Nonoperating income (Expense), Total									(34,116)	(34,161)	(27,860)
Income (loss) before income taxes									(34,116)	(34,161)	(27,860)
Income tax (expense) benefit									0	0	0
Net income (loss)									(34,116)	(34,161)	(27,860)
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									0	0	0
Net income (loss) attributable to Parent									(34,116)	(34,161)	(27,860)
Comprehensive income attributable to Parent									(34,042)	(33,922)	(27,784)
Comcast Parent [Member]
Service revenue									0	0	0
Management fee revenue									1,005	947	897
Revenue									1,005	947	897
Costs and Expenses:
Programming and production									0	0	0
Other operating and administrative									760	751	403
Advertising, marketing and promotion									0	0	0
Depreciation									31	34	30
Amortization									6	6	5
Costs and expenses, total									797	791	438
Operating income (loss)									208	156	459
Other Income (Expense):
Interest expense									(1,744)	(1,621)	(1,523)
Investment income (loss), net									6	3	0
Equity in net income (losses) of investees, net									9,159	9,330	7,509
Other income (expense), net									(3)	0	(2)
Nonoperating income (Expense), Total									7,418	7,712	5,984
Income (loss) before income taxes									7,626	7,868	6,443
Income tax (expense) benefit									537	512	373
Net income (loss)									8,163	8,380	6,816
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									0	0	0
Net income (loss) attributable to Parent									8,163	8,380	6,816
Comprehensive income attributable to Parent									8,135	8,178	6,883
Comcast Holdings [Member]
Service revenue									0	0	0
Management fee revenue									0	0	0
Revenue									0	0	0
Costs and Expenses:
Programming and production									0	0	0
Other operating and administrative									0	0	0
Advertising, marketing and promotion									0	0	0
Depreciation									0	0	0
Amortization									0	0	0
Costs and expenses, total									0	0	0
Operating income (loss)									0	0	0
Other Income (Expense):
Interest expense									(12)	(11)	(11)
Investment income (loss), net									(1)	12	(13)
Equity in net income (losses) of investees, net									8,651	8,843	7,540
Other income (expense), net									0	0	0
Nonoperating income (Expense), Total									8,638	8,844	7,516
Income (loss) before income taxes									8,638	8,844	7,516
Income tax (expense) benefit									4	0	9
Net income (loss)									8,642	8,844	7,525
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									0	0	0
Net income (loss) attributable to Parent									8,642	8,844	7,525
Comprehensive income attributable to Parent									8,625	8,807	7,521
CCCL Parent [Member]
Service revenue									0	0	0
Management fee revenue									977	921	874
Revenue									977	921	874
Costs and Expenses:
Programming and production									0	0	0
Other operating and administrative									977	921	874
Advertising, marketing and promotion									0	0	0
Depreciation									0	0	0
Amortization									0	0	0
Costs and expenses, total									977	921	874
Operating income (loss)									0	0	0
Other Income (Expense):
Interest expense									(270)	(294)	(338)
Investment income (loss), net									0	0	0
Equity in net income (losses) of investees, net									8,040	8,350	7,512
Other income (expense), net									0	0	2
Nonoperating income (Expense), Total									7,770	8,056	7,176
Income (loss) before income taxes									7,770	8,056	7,176
Income tax (expense) benefit									94	103	117
Net income (loss)									7,864	8,159	7,293
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									0	0	0
Net income (loss) attributable to Parent									7,864	8,159	7,293
Comprehensive income attributable to Parent									7,864	8,163	7,277
NBCUniversal Media Parent [Member]
Service revenue									0	0	0
Management fee revenue									0	0	0
Revenue									0	0	0
Costs and Expenses:
Programming and production									0	0	0
Other operating and administrative									922	908	855
Advertising, marketing and promotion									0	0	0
Depreciation									0	0	0
Amortization									0	0	0
Costs and expenses, total									922	908	855
Operating income (loss)									(922)	(908)	(855)
Other Income (Expense):
Interest expense									(462)	(479)	(488)
Investment income (loss), net									(19)	(7)	3
Equity in net income (losses) of investees, net									4,852	4,523	3,331
Other income (expense), net									(31)	(4)	(1)
Nonoperating income (Expense), Total									4,340	4,033	2,845
Income (loss) before income taxes									3,418	3,125	1,990
Income tax (expense) benefit									(4)	(10)	(22)
Net income (loss)									3,414	3,115	1,968
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									0	0	0
Net income (loss) attributable to Parent									3,414	3,115	1,968
Comprehensive income attributable to Parent									3,361	2,972	2,017
Comcast Non-Guarantor Subsidiaries [Member]
Service revenue									74,510	68,775	64,657
Management fee revenue									0	0	0
Revenue									74,510	68,775	64,657
Costs and Expenses:
Programming and production									22,550	20,912	19,670
Other operating and administrative									20,662	19,142	18,214
Advertising, marketing and promotion									5,943	5,086	4,978
Depreciation									6,750	6,303	6,224
Amortization									1,893	1,676	1,612
Costs and expenses, total									57,798	53,119	50,698
Operating income (loss)									16,712	15,656	13,959
Other Income (Expense):
Interest expense									(214)	(212)	(214)
Investment income (loss), net									95	288	586
Equity in net income (losses) of investees, net									3,089	3,212	1,882
Other income (expense), net									354	(211)	(363)
Nonoperating income (Expense), Total									3,324	3,077	1,891
Income (loss) before income taxes									20,036	18,733	15,850
Income tax (expense) benefit									(5,590)	(4,478)	(4,457)
Net income (loss)									14,446	14,255	11,393
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock									(250)	(212)	(319)
Net income (loss) attributable to Parent									14,196	14,043	11,074
Comprehensive income attributable to Parent									$ 14,192	$ 13,980	$ 10,969

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net cash provided by (used in) operating activities	$ 18,778	$ 16,945	$ 14,160
Investing Activities
Capital expenditures	(8,499)	(7,420)	(6,596)
Cash paid for intangible assets	(1,370)	(1,122)	(1,009)
Acquisitions and construction of real estate properties	(178)	(43)	(1,904)
Acquisitions, net of cash acquired	(1,786)	(477)	(99)
Proceeds from sales of businesses and investments	433	666	1,083
Purchases of investments	(784)	(191)	(1,223)
Other	220	(146)	234
Net cash provided by (used in) investing activities	(11,964)	(8,733)	(9,514)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	135	(504)	1,345
Proceeds from borrowings	5,486	4,182	2,933
Repurchases and repayments of debt	(4,378)	(3,175)	(2,444)
Repurchases and retirements of common stock	(6,750)	(4,251)	(2,000)
Dividends paid	(2,437)	(2,254)	(1,964)
Issuances of common stock	36	35	40
Purchase of NBCUniversal noncontrolling common equity interest			(10,761)
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(232)	(220)	(215)
Settlement of Station Venture liability			(602)
Other	(289)	167	(211)
Net cash provided by (used in) financing activities	(8,429)	(6,020)	(13,879)
Increase (decrease) in cash and cash equivalents	(1,615)	2,192	(9,233)
Cash and cash equivalents, beginning of period	3,910	1,718	10,951
Cash and cash equivalents, end of period	2,295	3,910	1,718
Elimination and Consolidation Adjustments [Member]
Operating Activities
Net cash provided by (used in) operating activities	0	0	0
Investing Activities
Net transactions with affiliates	0	0	0
Capital expenditures	0	0	0
Cash paid for intangible assets	0	0	0
Acquisitions and construction of real estate properties	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sales of businesses and investments	0	0	0
Purchases of investments	0	0	0
Other	0	0	0
Net cash provided by (used in) investing activities	0	0	0
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	0	0	0
Proceeds from borrowings	0	0	0
Repurchases and repayments of debt	0	0	0
Repurchases and retirements of common stock	0	0	0
Dividends paid	0	0	0
Issuances of common stock	0	0	0
Purchase of NBCUniversal noncontrolling common equity interest			0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	0	0	0
Settlement of Station Venture liability			0
Other	0	0	0
Net cash provided by (used in) financing activities	0	0	0
Increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Comcast Parent [Member]
Operating Activities
Net cash provided by (used in) operating activities	(792)	(354)	(600)
Investing Activities
Net transactions with affiliates	6,559	4,784	66
Capital expenditures	(27)	(3)	(7)
Cash paid for intangible assets	(6)	(6)	(4)
Acquisitions and construction of real estate properties	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sales of businesses and investments	0	0	0
Purchases of investments	(7)	(19)	(11)
Other	7	0	0
Net cash provided by (used in) investing activities	6,526	4,756	44
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	400	(1,350)	1,349
Proceeds from borrowings	5,486	4,180	2,933
Repurchases and repayments of debt	(2,650)	(1,000)	0
Repurchases and retirements of common stock	(6,750)	(4,251)	(2,000)
Dividends paid	(2,437)	(2,254)	(1,964)
Issuances of common stock	36	35	40
Purchase of NBCUniversal noncontrolling common equity interest			0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	0	0	0
Settlement of Station Venture liability			0
Other	181	238	198
Net cash provided by (used in) financing activities	(5,734)	(4,402)	556
Increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Comcast Holdings [Member]
Operating Activities
Net cash provided by (used in) operating activities	48	9	(3)
Investing Activities
Net transactions with affiliates	(48)	(9)	3
Capital expenditures	0	0	0
Cash paid for intangible assets	0	0	0
Acquisitions and construction of real estate properties	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sales of businesses and investments	0	0	0
Purchases of investments	0	0	0
Other	0	0	0
Net cash provided by (used in) investing activities	(48)	(9)	3
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	0	0	0
Proceeds from borrowings	0	0	0
Repurchases and repayments of debt	0	0	0
Repurchases and retirements of common stock	0	0	0
Dividends paid	0	0	0
Issuances of common stock	0	0	0
Purchase of NBCUniversal noncontrolling common equity interest			0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	0	0	0
Settlement of Station Venture liability			0
Other	0	0	0
Net cash provided by (used in) financing activities	0	0	0
Increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
CCCL Parent [Member]
Operating Activities
Net cash provided by (used in) operating activities	(167)	(139)	(245)
Investing Activities
Net transactions with affiliates	840	139	2,580
Capital expenditures	0	0	0
Cash paid for intangible assets	0	0	0
Acquisitions and construction of real estate properties	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sales of businesses and investments	0	0	0
Purchases of investments	0	0	0
Other	0	0	0
Net cash provided by (used in) investing activities	840	139	2,580
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	0	0	0
Proceeds from borrowings	0	0	0
Repurchases and repayments of debt	(673)	0	(2,335)
Repurchases and retirements of common stock	0	0	0
Dividends paid	0	0	0
Issuances of common stock	0	0	0
Purchase of NBCUniversal noncontrolling common equity interest			0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	0	0	0
Settlement of Station Venture liability			0
Other	0	0	0
Net cash provided by (used in) financing activities	(673)	0	(2,335)
Increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
NBCUniversal Media Parent [Member]
Operating Activities
Net cash provided by (used in) operating activities	(1,398)	(1,299)	(1,102)
Investing Activities
Net transactions with affiliates	2,839	2,247	(470)
Capital expenditures	0	0	0
Cash paid for intangible assets	0	0	0
Acquisitions and construction of real estate properties	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sales of businesses and investments	4	8	2
Purchases of investments	(407)	(10)	(3)
Other	(5)	5	108
Net cash provided by (used in) investing activities	2,431	2,250	(363)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	0	0	0
Proceeds from borrowings	0	0	0
Repurchases and repayments of debt	(1,004)	(902)	(88)
Repurchases and retirements of common stock	0	0	0
Dividends paid	0	0	0
Issuances of common stock	0	0	0
Purchase of NBCUniversal noncontrolling common equity interest			(3,200)
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	0	0	0
Settlement of Station Venture liability			0
Other	0	0	(40)
Net cash provided by (used in) financing activities	(1,004)	(902)	(3,328)
Increase (decrease) in cash and cash equivalents	29	49	(4,793)
Cash and cash equivalents, beginning of period	385	336	5,129
Cash and cash equivalents, end of period	414	385	336
Comcast Non-Guarantor Subsidiaries [Member]
Operating Activities
Net cash provided by (used in) operating activities	21,087	18,728	16,110
Investing Activities
Net transactions with affiliates	(10,190)	(7,161)	(2,179)
Capital expenditures	(8,472)	(7,417)	(6,589)
Cash paid for intangible assets	(1,364)	(1,116)	(1,005)
Acquisitions and construction of real estate properties	(178)	(43)	(1,904)
Acquisitions, net of cash acquired	(1,786)	(477)	(99)
Proceeds from sales of businesses and investments	429	658	1,081
Purchases of investments	(370)	(162)	(1,209)
Other	218	(151)	126
Net cash provided by (used in) investing activities	(21,713)	(15,869)	(11,778)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(265)	846	(4)
Proceeds from borrowings	0	2	0
Repurchases and repayments of debt	(51)	(1,273)	(21)
Repurchases and retirements of common stock	0	0	0
Dividends paid	0	0	0
Issuances of common stock	0	0	0
Purchase of NBCUniversal noncontrolling common equity interest			(7,561)
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(232)	(220)	(215)
Settlement of Station Venture liability			(602)
Other	(470)	(71)	(369)
Net cash provided by (used in) financing activities	(1,018)	(716)	(8,772)
Increase (decrease) in cash and cash equivalents	(1,644)	2,143	(4,440)
Cash and cash equivalents, beginning of period	3,525	1,382	5,822
Cash and cash equivalents, end of period	$ 1,881	$ 3,525	$ 1,382

Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 205	$ 221	$ 198
Additions Charged to Costs and Expenses	166	162	317
Deductions from Reserves	145	178	294
Balance at End of Year	226	205	221
Allowance for Doubtful Accounts [Member] \| NBCUniversal Media LLC [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	60	65	46
Additions Charged to Costs and Expenses	27	11	33
Deductions from Reserves	18	16	14
Balance at End of Year	69	60	65
Sales Returns and Allowances [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	359	375	307
Additions Charged to Costs and Expenses	1,236	932	811
Deductions from Reserves	1,122	948	743
Balance at End of Year	473	359	375
Sales Returns and Allowances [Member] \| NBCUniversal Media LLC [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	356	372	307
Additions Charged to Costs and Expenses	1,233	930	808
Deductions from Reserves	1,120	946	743
Balance at End of Year	469	356	372
Deferred Tax Valuation Allowance
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	375	405	355
Additions Charged to Costs and Expenses	4	33	71
Deductions from Reserves	37	63	21
Balance at End of Year	342	375	405
Deferred Tax Valuation Allowance \| NBCUniversal Media LLC [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	87	60	73
Additions Charged to Costs and Expenses	4	33	8
Deductions from Reserves	20	6	21
Balance at End of Year	$ 71	$ 87	$ 60