0001166691-21-000020 | 10-Q | XBRL Viewer

Print Document View Excel Document

Cover Page	3 Months Ended
Cover Page	Mar. 31, 2021 shares
Document And Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-32871
Entity Registrant Name	COMCAST CORPORATION
Entity Tax Identification Number	27-0000798
Entity Incorporation, State or Country Code	PA
Entity Address, Address Line One	One Comcast Center
Entity Address, City or Town	Philadelphia
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19103-2838
City Area Code	215
Local Phone Number	286-1700
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001166691
Class A Common Stock [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	Class A Common Stock, $0.01 par value
Trading Symbol	CMCSA
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding	4,584,571,926
0.250% Notes Due 2027 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	0.250% Notes due 2027
Trading Symbol	CMCS27
Security Exchange Name	NASDAQ
1.500% Notes Due 2029 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	1.500% Notes due 2029
Trading Symbol	CMCS29
Security Exchange Name	NASDAQ
0.750% Notes Due 2032 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	0.750% Notes due 2032
Trading Symbol	CMCS32
Security Exchange Name	NASDAQ
1.875% Notes Due 2036 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	1.875% Notes due 2036
Trading Symbol	CMCS36
Security Exchange Name	NASDAQ
1.250% Notes Due 2040 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	1.250% Notes due 2040
Trading Symbol	CMCS40
Security Exchange Name	NASDAQ
9.455% Guaranteed Notes Due 2022 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	9.455% Guaranteed Notes due 2022
Trading Symbol	CMCSA/22
Security Exchange Name	NYSE
5.50% Notes Due 2029 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	5.50% Notes due 2029
Trading Symbol	CCGBP29
Security Exchange Name	NYSE
2.0% Exchangeable Subordinated Debentures Due 2029 [Member]
Document And Entity Information [Line Items]
Title of 12(b) Security	2.0% Exchangeable Subordinated Debentures due 2029
Trading Symbol	CCZ
Security Exchange Name	NYSE
Class B Common Stock [Member]
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	9,444,375

Condensed Consolidated Statement of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 27,205	$ 26,609
Costs and Expenses:
Programming and production	8,919	8,301
Other operating and administrative	8,269	8,254
Advertising, marketing and promotion	1,616	1,938
Depreciation	2,117	2,107
Amortization	1,245	1,157
Total costs and expenses	22,166	21,757
Operating income	5,039	4,852
Interest expense	(1,018)	(1,212)
Investment and other income (loss), net	390	(716)
Income before income taxes	4,411	2,924
Income tax expense	(1,119)	(700)
Net income	3,292	2,224
Less: Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock	(37)	77
Net income attributable to Comcast Corporation	$ 3,329	$ 2,147
Basic earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.73	$ 0.47
Diluted earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.71	$ 0.46

Condensed Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 3,292	$ 2,224
Currency translation adjustments, net of deferred taxes of $(92) and $(7)	(35)	(2,157)
Cash flow hedges:
Deferred gains (losses), net of deferred taxes of $(19) and $10	119	54
Realized (gains) losses reclassified to net income, net of deferred taxes of $— and $17	0	(106)
Employee benefit obligations and other, net of deferred taxes of $2 and $3	(10)	(7)
Comprehensive income	3,366	8
Less: Net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock	(37)	77
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(14)	(25)
Comprehensive income (loss) attributable to Comcast Corporation	$ 3,417	$ (44)

Condensed Consolidated Statement of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Currency translation adjustments, deferred taxes	$ (92)	$ (7)
Deferred gains (losses) on cash flow hedges, deferred taxes	(19)	10
Realized (gains) losses on cash flow hedges, deferred taxes	0	17
Employee benefit obligations and other, deferred taxes	$ 2	$ 3

Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities
Net income	$ 3,292	$ 2,224
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,362	3,264
Share-based compensation	373	298
Noncash interest expense (income), net	62	227
Net (gain) loss on investment activity and other	(239)	791
Deferred income taxes	28	(120)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	554	198
Film and television costs, net	393	3
Accounts payable and accrued expenses related to trade creditors	(198)	(727)
Other operating assets and liabilities	124	(334)
Net cash provided by operating activities	7,751	5,824
Investing Activities
Capital expenditures	(1,859)	(1,881)
Cash paid for intangible assets	(612)	(618)
Construction of Universal Beijing Resort	(428)	(371)
Acquisitions, net of cash acquired	(147)	(194)
Proceeds from sales of businesses and investments	388	17
Purchases of investments	(52)	(69)
Other	98	15
Net cash provided by (used in) investing activities	(2,612)	(3,101)
Financing Activities
Proceeds from borrowings	192	9,281
Repurchases and repayments of debt	(124)	(7,439)
Repurchases of common stock under employee plans	(309)	(233)
Dividends paid	(1,080)	(977)
Other	(577)	(258)
Net cash provided by (used in) financing activities	(1,898)	374
Impact of foreign currency on cash, cash equivalents and restricted cash	(33)	(77)
Increase (decrease) in cash, cash equivalents and restricted cash	3,208	3,020
Cash, cash equivalents and restricted cash, beginning of period	11,768	5,589
Cash, cash equivalents and restricted cash, end of period	$ 14,976	$ 8,609

Condensed Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 14,950	$ 11,740
Receivables, net	10,986	11,466
Other current assets	3,502	3,535
Total current assets	29,438	26,741
Film and television costs	12,983	13,340
Investments	7,889	7,820
Investment securing collateralized obligation	487	447
Property and equipment, net of accumulated depreciation	52,317	51,995
Goodwill	70,106	70,669
Franchise rights	59,365	59,365
Other intangible assets, net of accumulated amortization	34,861	35,389
Other noncurrent assets, net	11,065	8,103
Total assets	278,511	273,869
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	11,148	11,364
Accrued participations and residuals	1,619	1,706
Deferred revenue	3,376	2,963
Accrued expenses and other current liabilities	9,891	9,617
Current portion of long-term debt	4,777	3,146
Total current liabilities	30,811	28,796
Long-term debt, less current portion	98,936	100,614
Collateralized obligation	5,168	5,168
Deferred income taxes	28,260	28,051
Other noncurrent liabilities	20,690	18,222
Commitments and contingencies
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	546	1,280
Equity:
Preferred stock	0	0
Additional paid-in capital	39,744	39,464
Retained earnings	58,321	56,438
Treasury stock	(7,517)	(7,517)
Accumulated other comprehensive income (loss)	1,972	1,884
Total Comcast Corporation shareholders’ equity	92,575	90,323
Noncontrolling interests	1,525	1,415
Total equity	94,100	91,738
Total liabilities and equity	278,511	273,869
Class A Common Stock [Member]
Equity:
Common stock	55	54
Class B Common Stock [Member]
Equity:
Common stock	$ 0	$ 0

Condensed Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Property and equipment - accumulated depreciation	$ 54,793	$ 54,388
Other intangible assets - accumulated amortization	$ 20,885	$ 19,825
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares issued (in shares)	0	0
Treasury stock (in shares)	872,791,028	872,791,028
Class A Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	7,500,000,000	7,500,000,000
Common stock, shares issued (in shares)	5,457,362,954	5,444,002,825
Common stock, shares outstanding (in shares)	4,584,571,926	4,571,211,797
Class B Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	9,444,375	9,444,375
Common stock, shares outstanding (in shares)	9,444,375	9,444,375

Condensed Consolidated Statement of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Redeemable Noncontrolling Interests and Redeemable Subsidiary Preferred Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock at Cost [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Class A Common Stock [Member] Common Stock [Member]
Beginning balance at Dec. 31, 2019		$ 1,372
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of subsidiary preferred stock		0
Contributions from (distributions to) noncontrolling interests, net		(27)
Other		(153)
Net income (loss)		67
Ending balance at Mar. 31, 2020		1,259
Beginning balance at Dec. 31, 2019			$ 38,447	$ 50,695	$ (124)	$ (7,517)	$ 1,047	$ 1,148	$ 54
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation plans			212
Issuances of common stock under employee plans									0
Repurchases of common stock under employee plans			(93)	(142)
Employee stock purchase plans			54
Dividends declared				(1,064)
Other comprehensive income (loss)							(2,191)	(14)
Contributions from (distributions to) noncontrolling interests, net								120
Other			(23)	4				13
Net income (loss)	$ 2,147			2,147
Net income (loss)								10
Ending balance at Mar. 31, 2020	$ 82,783		38,597	51,516		(7,517)	(1,144)	1,277	54
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.23
Beginning balance at Dec. 31, 2020	$ 1,280	1,280
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of subsidiary preferred stock		(725)
Contributions from (distributions to) noncontrolling interests, net		(27)
Other		(10)
Net income (loss)		28
Ending balance at Mar. 31, 2021	546	$ 546
Beginning balance at Dec. 31, 2020	91,738		39,464	56,438	$ 0	(7,517)	1,884	1,415	54
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation plans			296
Issuances of common stock under employee plans									1
Repurchases of common stock under employee plans			(88)	(289)
Employee stock purchase plans			62
Dividends declared				(1,161)
Other comprehensive income (loss)							88	(14)
Contributions from (distributions to) noncontrolling interests, net								189
Other			10	4				0
Net income (loss)	3,329			3,329
Net income (loss)								(65)
Ending balance at Mar. 31, 2021	$ 94,100		$ 39,744	$ 58,321		$ (7,517)	$ 1,972	$ 1,525	$ 55
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.25

Condensed Consolidated Financial Statements	3 Months Ended
Condensed Consolidated Financial Statements	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Consolidated Financial Statements	Condensed Consolidated Financial Statements Basis of Presentation We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, cash flows and financial condition for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year. The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2020 Annual Report on Form 10-K and the notes within this Form 10-Q. Reclassifications Reclassifications have been made to our notes to condensed consolidated financial statements for the prior year period to conform to classifications used in 2021. See Note 2 for a discussion of the changes in our presentation of segment operating results.

Segment Information

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Segment Information

In the first quarter of 2021, we changed our presentation of segment operating results. We now present our operations in five reportable business segments: (1) Comcast Cable in one reportable business segment, referred to as Cable Communications; (2) NBCUniversal in three reportable business segments: Media, Studios and Theme Parks (collectively, the “NBCUniversal segments”); and (3) Sky in one reportable business segment. The changes reflect a reorganized operating structure in NBCUniversal’s television and streaming businesses and primarily include: (i) the combination of NBCUniversal’s television networks (previously reported in Cable Networks and Broadcast Television) with the operations of Peacock (previously reported in Corporate and Other) in the Media segment, and (ii) the presentation of NBCUniversal’s television studio production operations (previously reported in Cable Networks and Broadcast Television) with the studio operations of Filmed Entertainment in the Studios segment. Prior periods have been adjusted to reflect this presentation.

Cable Communications is a leading provider of broadband, video, voice, wireless, and security and automation services to residential customers under the Xfinity brand; we also provide these and other services to business customers and sell advertising. Revenue is generated primarily from residential and business customers that subscribe to our services, which are marketed individually and as bundled services, and from the sale of advertising.

Media consists primarily of NBCUniversal’s television and streaming platforms, including national, regional and international cable networks; the NBC and Telemundo broadcast networks; NBC and Telemundo owned local broadcast television stations; Peacock, our direct-to-consumer streaming service; and various digital properties. Revenue is generated primarily from the sale of advertising on our television networks, Peacock and digital properties; and the fees received from the distribution of our television network programming to traditional and virtual multichannel video providers and from NBC-affiliated and Telemundo-affiliated local broadcast television stations. Media also generates other revenue from various digital properties.

Studios consists primarily of NBCUniversal’s film and television studio production and distribution operations. Revenue is generated primarily from the licensing of our owned film and television content to broadcast, cable and premium networks, and to direct-to-consumer streaming service providers, as well as through video on demand and pay-per-view services provided by multichannel video providers and over-the-top service providers; from the worldwide distribution of our produced and acquired films for exhibition in movie theaters; and from the sale of owned content on DVDs, Blu-ray discs and through digital distribution services.

Theme Parks consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan. In addition, we are developing a theme park in Beijing, China along with a consortium of Chinese state-owned companies, and an additional theme park in Orlando, Florida. Revenue is generated primarily from guest spending at our Universal theme parks.

Sky is one of Europe’s leading entertainment companies, which primarily includes a direct-to-consumer business, providing video, broadband, voice and wireless phone services, and a content business, operating entertainment networks, the Sky News broadcast network and Sky Sports networks. Revenue is generated primarily from residential and business customers that

subscribe to our services; from the distribution of Sky’s owned television networks on third-party platforms and the licensing of owned and acquired programming to third-party video providers; and from the sale of advertising.

Our other business interests consist primarily of the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania, and other business initiatives.

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation excluded from Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.


	Three Months Ended March 31, 2021
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Depreciation and Amortization		Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications	$	15,805	$	6,830	$	1,929	$	1,370	$	315
NBCUniversal
Media	5,036		1,473		247		10		32
Studios	2,396		497		12		1		2
Theme Parks	619		(61)		207		126		6
Headquarters and Other	16		(209)		117		35		28
Eliminations(a)	(1,043)		(210)		—		—		—
NBCUniversal	7,024		1,490		583		172		68
Sky	4,997		364		814		271		201
Corporate and Other	89		(281)		36		46		28
Eliminations(a)	(710)		10		—		—		—
Comcast Consolidated	$	27,205	$	8,413	$	3,362	$	1,859	$	612


	Three Months Ended March 31, 2020
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Depreciation and Amortization		Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications	$	14,918	$	6,076	$	1,946	$	1,269	$	356
NBCUniversal
Media	4,878		1,529		243		31		38
Studios	2,409		300		17		4		1
Theme Parks	925		87		190		296		15
Headquarters and Other	9		(221)		116		46		41
Eliminations(a)	(492)		(6)		—		—		—
NBCUniversal	7,729		1,689		566		377		95
Sky	4,517		551		718		197		166
Corporate and Other	120		(193)		34		38		1
Eliminations(a)	(675)		7		—		—		—
Comcast Consolidated	$	26,609	$	8,130	$	3,264	$	1,881	$	618

(a)Included in Eliminations are transactions that our segments enter into with one another. Our segments generally report transactions with one another as if they were stand-alone businesses in accordance with GAAP, and these transactions are eliminated in consolidation. When multiple segments enter into transactions to provide products and services to third parties, revenue is generally allocated to our segments based on relative value. The most significant transactions between our segments include distribution revenue at Media for fees received from Cable Communications for the sale of cable network programming and under retransmission consent agreements; content licensing revenue at Studios for licenses of owned content to Media and Sky; and advertising revenue at Media and Cable Communications. Revenue for licenses of content from Studios to Media and Sky is generally recognized at a point in time, consistent with the recognition of transactions with third parties, when the content is delivered and made available for use. The costs of these licenses at Media and Sky are recognized as the content is used over the license period. The difference in timing of recognition between segments results in an Adjusted EBITDA impact in eliminations, as the profits (losses) on these transactions are deferred in our consolidated results and recognized as the content is used over the license period. Under the previous segment structure, revenue for licenses of content between our previous NBCUniversal segments was recognized over time to correspond with the amortization of the costs of licensed content over the license period.

A summary of revenue for each of our segments resulting from transactions with other segments and eliminated in consolidation is presented in the table below.


	Three Months Ended March 31,
(in millions)	2021		2020
Cable Communications	$	45	$	42
NBCUniversal
Media	540		544
Studios	1,089		540
Theme Parks	1		—
Headquarters and Other	12		2
Sky	8		2
Corporate and Other	58		37
Total intersegment revenue	$	1,753	$	1,167

(b)We use Adjusted EBITDA as the measure of profit or loss for our operating segments. From time to time we may report the impact of certain events, gains, losses or other charges related to our operating segments (such as certain costs incurred in response to COVID-19, including severance charges), within Corporate and Other. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.


	Three Months Ended March 31,
(in millions)		2021		2020
Adjusted EBITDA		$	8,413	$	8,130

Adjustment for Sky transaction-related costs		(12)		(14)
Depreciation		(2,117)		(2,107)
Amortization		(1,245)		(1,157)


Interest expense		(1,018)		(1,212)
Investment and other income (loss), net		390		(716)

Income before income taxes		$	4,411	$	2,924

Goodwill by Segment

The changes in the carrying amount of goodwill by segment for the quarter ended March 31, 2021 are as follows:


			NBCUniversal
(in billions)	Cable Communications		Cable Networks		Broadcast Television		Filmed Entertainment		Media		Studios		Theme Parks		Sky		Corporate and Other		Total





Balance, December 31, 2020	$	15.3	$	14.0	$	1.1	$	3.3	$	—	$	—	$	7.0	$	30.0	$	—	$	70.7
Segment change	—		(14.0)		(1.1)		(3.3)		14.7		3.7		—		—		—		—



Foreign currency translation and other	0.1		—		—		—		—		—		(0.4)		(0.3)		—		(0.6)
Balance, March 31, 2021	$	15.4	$	—	$	—	$	—	$	14.7	$	3.7	$	6.6	$	29.7	$	—	$	70.1

- 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Revenue

3 Months Ended

Mar. 31, 2021

Revenues [Abstract]

Revenue


	Three Months Ended March 31,
(in millions)		2021		2020
Residential:
Broadband		$	5,600	$	5,001
Video		5,623		5,632
Voice		871		899
Wireless		513		343
Business services		2,167		2,043
Advertising		618		557
Other		413		443
Total Cable Communications		15,805		14,918

Advertising		2,094		2,167
Distribution		2,495		2,287
Other		447		424
Total Media		5,036		4,878

Content licensing		2,075		1,819
Theatrical		39		316

Home entertainment and other		282		274
Total Studios		2,396		2,409

Total Theme Parks		619		925
Headquarters and Other		16		9
Eliminations(a)		(1,043)		(492)
Total NBCUniversal		7,024		7,729

Direct-to-consumer		4,065		3,679
Content		358		325
Advertising		574		513
Total Sky		4,997		4,517

Corporate and Other		89		120
Eliminations(a)		(710)		(675)
Total revenue		$	27,205	$	26,609

(a)Included in Eliminations are transactions that our segments enter into with one another. See Note 2 for a description of these transactions.

We operate primarily in the United States but also in select international markets. The table below summarizes revenue by geographic location.


	Three Months Ended March 31,
(in millions)		2021		2020
United States		$	21,156	$	20,690
Europe		5,352		5,033
Other		697		886
Total revenue		$	27,205	$	26,609

Condensed Consolidated Balance Sheet

The following tables summarize our accounts receivable and other balances that are not separately presented in our condensed consolidated balance sheet that relate to the recognition of revenue and collection of the related cash, as well as the deferred costs associated with our contracts with customers.


(in millions)	March 31, 2021		December 31, 2020
Receivables, gross	$	11,764	$	12,273
Less: Allowance for doubtful accounts	778		807
Receivables, net	$	10,986	$	11,466


(in millions)	March 31, 2021		December 31, 2020
Noncurrent receivables, net (included in other noncurrent assets, net)	$	1,061	$	1,091
Contract acquisition and fulfillment costs (included in other noncurrent assets, net)	$	1,048	$	1,060
Noncurrent deferred revenue (included in other noncurrent liabilities)	$	726	$	750

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Programming and Production Costs

3 Months Ended

Mar. 31, 2021

Other Industries [Abstract]

Programming and Production Costs


	Three Months Ended March 31,
(in millions)		2021		2020
Video distribution programming		$	3,515	$	3,215
Film and television content:
Owned(a)		1,964		2,127
Licensed, including sports rights		3,175		2,664
Other		265		295
Total programming and production costs		$	8,919	$	8,301

(a) Amount includes amortization of owned content of $1.6 billion and $1.8 billion for the three months ended March 31, 2021 and 2020, respectively, as well as participations and residuals expenses.

Capitalized Film and Television Costs


(in millions)	March 31, 2021		December 31, 2020
Owned:
Released, less amortization	$	3,885	$	3,815
Completed, not released	626		139
In production and in development	2,369		2,755
	6,880		6,709
Licensed, including sports advances	6,103		6,631


Film and television costs	$	12,983	$	13,340

Long-Term Debt	3 Months Ended
Long-Term Debt	Mar. 31, 2021
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt As of March 31, 2021, our debt had a carrying value of $103.7 billion and an estimated fair value of $117.8 billion. As of December 31, 2020, our debt had a carrying value of $103.8 billion and an estimated fair value of $125.6 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market value for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities. In March 2021, we entered into a new $11 billion revolving credit facility due March 30, 2026 with a syndicate of banks that may be used for general corporate purposes. We may increase the commitments under the revolving credit facility up to a total of $14 billion, as well as extend the expiration date to no later than March 30, 2028, subject to approval of the lenders. The interest rate on the revolving credit facility consists of a base rate plus a borrowing margin that is determined based on Comcast’s credit rating. As of March 31, 2021, the borrowing margin for borrowings based on the London Interbank Offered Rate was 1.00%. Our revolving credit facility requires that we maintain certain financial ratios based on debt and EBITDA, as defined in the revolving credit facility. We were in compliance with all financial covenants for all periods presented. The new revolving credit facility replaced an aggregate $9.2 billion of existing revolving credit facilities due May 26, 2022, which were terminated. Our revolving credit facilities were undrawn as of both March 31, 2021 and December 31, 2020.

Significant Transactions	3 Months Ended
Significant Transactions	Mar. 31, 2021
Business Combinations [Abstract]
Significant Transactions	Significant Transactions Universal Beijing Resort We entered into an agreement with a consortium of Chinese state-owned companies to build and operate a Universal theme park and resort in Beijing, China (“Universal Beijing Resort”). We own a 30% interest in Universal Beijing Resort and the construction is being funded through a combination of debt financing and equity contributions from the investors in accordance with their equity interests. As of March 31, 2021, Universal Beijing Resort had $3.0 billion of debt outstanding, including $2.7 billion principal amount of a term loan under the debt financing agreement. As of March 31, 2021, our condensed consolidated balance sheet included assets and liabilities of Universal Beijing Resort, totaling $8.5 billion and $6.8 billion, respectively. The assets and liabilities of Universal Beijing Resort primarily consist of property and equipment, operating lease assets and liabilities, and debt.

Investments

3 Months Ended

Mar. 31, 2021

Investments [Abstract]

Investments

Investment and Other Income (Loss), Net


	Three Months Ended March 31,
(in millions)		2021		2020
Equity in net income (losses) of investees, net		$	136	$	(668)
Realized and unrealized gains (losses) on equity securities, net		237		(58)
Other income (loss), net		17		10
Investment and other income (loss), net		$	390	$	(716)

The amount of unrealized gains (losses) recognized in the three months ended March 31, 2021 and 2020 that related to marketable and nonmarketable equity securities still held as of the end of each reporting period were gains of $98 million and losses of $59 million, respectively.


(in millions)	March 31, 2021		December 31, 2020
Equity method	$	6,048	$	6,006
Marketable equity securities	260		460
Nonmarketable equity securities	2,021		1,950
Other investments	130		143
Total investments	8,459		8,559
Less: Current investments	83		292
Less: Investment securing collateralized obligation	487		447
Noncurrent investments	$	7,889	$	7,820

Equity Method

Atairos

Atairos follows investment company accounting and records its investments at their fair values each reporting period with the net gains or losses reflected in its statement of operations. We recognize our share of these gains and losses in equity in net income (losses) of investees, net. For both the three months ended March 31, 2021 and 2020, we made cash capital contributions to Atairos totaling $12 million. As of both March 31, 2021 and December 31, 2020, our investment in Atairos was $3.9 billion.

Hulu and Collateralized Obligation

In 2019, we borrowed $5.2 billion under a term loan facility due March 2024 which is fully collateralized by the minimum guaranteed proceeds of the put/call option related to our investment in Hulu. As of March 31, 2021 and December 31, 2020, the carrying value and fair value of our collateralized obligation were $5.2 billion. The estimated fair value was based on Level 2 inputs that use interest rates for debt with similar terms and remaining maturities. We present our investment in Hulu and the term loan separately in our condensed consolidated balance sheet in the captions “investment securing collateralized obligation”

and “collateralized obligation,” respectively. The recorded value of our investment reflects our historical cost in applying the equity method, and as a result, is less than its fair value.

Equity and Share-Based Compensation

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Equity and Share-Based Compensation

Weighted-Average Common Shares Outstanding


	Three Months Ended March 31,
(in millions)		2021	2020
Weighted-average number of common shares outstanding – basic		4,591	4,562
Effect of dilutive securities		74	55
Weighted-average number of common shares outstanding – diluted		4,665	4,617

Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. 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 in any of the periods presented.

Accumulated Other Comprehensive Income (Loss)


(in millions)	March 31, 2021		December 31, 2020
Cumulative translation adjustments	$	1,769	$	1,790

Deferred gains (losses) on cash flow hedges	10		(109)
Unrecognized gains (losses) on employee benefit obligations and other	193		203

Accumulated other comprehensive income (loss), net of deferred taxes	$	1,972	$	1,884

Share-Based Compensation

Our share-based compensation plans consist primarily of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Additionally, through our employee stock purchase plans, employees are able to purchase shares of our common stock at a discount through payroll deductions.

In March 2021, we granted 12.8 million RSUs and 42.3 million stock options related to our annual management awards. The weighted-average fair values associated with these grants were $54.62 per RSU and $9.64 per stock option.

Recognized Share-Based Compensation Expense


	Three Months Ended March 31,
(in millions)		2021		2020
Restricted share units		$	206	$	141
Stock options		90		71
Employee stock purchase plans		11		12
Total		$	307	$	224

As of March 31, 2021, we had unrecognized pretax compensation expense of $1.6 billion and $821 million related to nonvested RSUs and nonvested stock options, respectively.

Supplemental Financial Information

3 Months Ended

Mar. 31, 2021

Supplemental Financial Information [Abstract]

Supplemental Financial Information

Cash Payments for Interest and Income Taxes


	Three Months Ended March 31,
(in millions)	2021		2020
Interest	$	911	$	991
Income taxes	$	87	$	281

Noncash Activities

During the three months ended March 31, 2021:

•we recognized operating lease assets and liabilities of $2.7 billion related to Universal Beijing Resort with lease terms of 33 years and using a weighted average discount rate of 4.4%

•we acquired $1.6 billion of property and equipment and intangible assets that were accrued but unpaid

•we recorded a liability of $1.2 billion for a quarterly cash dividend of $0.25 per common share paid in April 2021

During the three months ended March 31, 2020:

•we acquired $1.6 billion of property and equipment and intangible assets that were accrued but unpaid

•we recorded a liability of $1.1 billion for a quarterly cash dividend of $0.23 per common share paid in April 2020

Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported in the condensed consolidated balance sheet to the total of the amounts reported in our condensed consolidated statement of cash flows.


(in millions)	March 31, 2021		December 31, 2020
Cash and cash equivalents	$	14,950	$	11,740
Restricted cash included in other current assets	12		14
Restricted cash included in other noncurrent assets, net	14		14
Cash, cash equivalents and restricted cash, end of period	$	14,976	$	11,768

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Redeemable Subsidiary Preferred Stock In the first quarter of 2021, we redeemed all of the NBCUniversal Enterprise, Inc. preferred stock and made cash payments equal to the aggregate liquidation preference of $725 million. As of December 31, 2020, the preferred stock had a carrying value equal to its liquidation preference and was presented in redeemable noncontrolling interests and redeemable subsidiary preferred stock. Contingencies We are subject to 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.

Condensed Consolidated Financial Statements (Policies)	3 Months Ended
Condensed Consolidated Financial Statements (Policies)	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, cash flows and financial condition for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2020 Annual Report on Form 10-K and the notes within this Form 10-Q.
Reclassifications	Reclassifications have been made to our notes to condensed consolidated financial statements for the prior year period to conform to classifications used in 2021.
Earnings Per Share	Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. 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 in any of the periods presented.

Segment Information (Tables)

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Financial Data by Business Segment

Our financial data by business segment is presented in the tables below.


	Three Months Ended March 31, 2021
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Depreciation and Amortization		Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications	$	15,805	$	6,830	$	1,929	$	1,370	$	315
NBCUniversal
Media	5,036		1,473		247		10		32
Studios	2,396		497		12		1		2
Theme Parks	619		(61)		207		126		6
Headquarters and Other	16		(209)		117		35		28
Eliminations(a)	(1,043)		(210)		—		—		—
NBCUniversal	7,024		1,490		583		172		68
Sky	4,997		364		814		271		201
Corporate and Other	89		(281)		36		46		28
Eliminations(a)	(710)		10		—		—		—
Comcast Consolidated	$	27,205	$	8,413	$	3,362	$	1,859	$	612


	Three Months Ended March 31, 2020
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Depreciation and Amortization		Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications	$	14,918	$	6,076	$	1,946	$	1,269	$	356
NBCUniversal
Media	4,878		1,529		243		31		38
Studios	2,409		300		17		4		1
Theme Parks	925		87		190		296		15
Headquarters and Other	9		(221)		116		46		41
Eliminations(a)	(492)		(6)		—		—		—
NBCUniversal	7,729		1,689		566		377		95
Sky	4,517		551		718		197		166
Corporate and Other	120		(193)		34		38		1
Eliminations(a)	(675)		7		—		—		—
Comcast Consolidated	$	26,609	$	8,130	$	3,264	$	1,881	$	618

A summary of revenue for each of our segments resulting from transactions with other segments and eliminated in consolidation is presented in the table below.


	Three Months Ended March 31,
(in millions)	2021		2020
Cable Communications	$	45	$	42
NBCUniversal
Media	540		544
Studios	1,089		540
Theme Parks	1		—
Headquarters and Other	12		2
Sky	8		2
Corporate and Other	58		37
Total intersegment revenue	$	1,753	$	1,167


	Three Months Ended March 31,
(in millions)		2021		2020
Adjusted EBITDA		$	8,413	$	8,130

Adjustment for Sky transaction-related costs		(12)		(14)
Depreciation		(2,117)		(2,107)
Amortization		(1,245)		(1,157)


Interest expense		(1,018)		(1,212)
Investment and other income (loss), net		390		(716)

Income before income taxes		$	4,411	$	2,924

Reconciliation of Adjusted EBITDA from Segments to Consolidated

Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.


	Three Months Ended March 31,
(in millions)		2021		2020
Adjusted EBITDA		$	8,413	$	8,130

Adjustment for Sky transaction-related costs		(12)		(14)
Depreciation		(2,117)		(2,107)
Amortization		(1,245)		(1,157)


Interest expense		(1,018)		(1,212)
Investment and other income (loss), net		390		(716)

Income before income taxes		$	4,411	$	2,924

Schedule of Goodwill

The changes in the carrying amount of goodwill by segment for the quarter ended March 31, 2021 are as follows:


			NBCUniversal
(in billions)	Cable Communications		Cable Networks		Broadcast Television		Filmed Entertainment		Media		Studios		Theme Parks		Sky		Corporate and Other		Total





Balance, December 31, 2020	$	15.3	$	14.0	$	1.1	$	3.3	$	—	$	—	$	7.0	$	30.0	$	—	$	70.7
Segment change	—		(14.0)		(1.1)		(3.3)		14.7		3.7		—		—		—		—



Foreign currency translation and other	0.1		—		—		—		—		—		(0.4)		(0.3)		—		(0.6)
Balance, March 31, 2021	$	15.4	$	—	$	—	$	—	$	14.7	$	3.7	$	6.6	$	29.7	$	—	$	70.1

Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenues [Abstract]

Disaggregation of revenue


	Three Months Ended March 31,
(in millions)		2021		2020
Residential:
Broadband		$	5,600	$	5,001
Video		5,623		5,632
Voice		871		899
Wireless		513		343
Business services		2,167		2,043
Advertising		618		557
Other		413		443
Total Cable Communications		15,805		14,918

Advertising		2,094		2,167
Distribution		2,495		2,287
Other		447		424
Total Media		5,036		4,878

Content licensing		2,075		1,819
Theatrical		39		316

Home entertainment and other		282		274
Total Studios		2,396		2,409

Total Theme Parks		619		925
Headquarters and Other		16		9
Eliminations(a)		(1,043)		(492)
Total NBCUniversal		7,024		7,729

Direct-to-consumer		4,065		3,679
Content		358		325
Advertising		574		513
Total Sky		4,997		4,517

Corporate and Other		89		120
Eliminations(a)		(710)		(675)
Total revenue		$	27,205	$	26,609

(a)Included in Eliminations are transactions that our segments enter into with one another. See Note 2 for a description of these transactions.

We operate primarily in the United States but also in select international markets. The table below summarizes revenue by geographic location.


	Three Months Ended March 31,
(in millions)		2021		2020
United States		$	21,156	$	20,690
Europe		5,352		5,033
Other		697		886
Total revenue		$	27,205	$	26,609

Schedule of receivables, net


(in millions)	March 31, 2021		December 31, 2020
Receivables, gross	$	11,764	$	12,273
Less: Allowance for doubtful accounts	778		807
Receivables, net	$	10,986	$	11,466

Other balance sheet accounts


(in millions)	March 31, 2021		December 31, 2020
Noncurrent receivables, net (included in other noncurrent assets, net)	$	1,061	$	1,091
Contract acquisition and fulfillment costs (included in other noncurrent assets, net)	$	1,048	$	1,060
Noncurrent deferred revenue (included in other noncurrent liabilities)	$	726	$	750

Programming and Production Costs (Tables)

3 Months Ended

Mar. 31, 2021

Other Industries [Abstract]

Programming and Production Expense


	Three Months Ended March 31,
(in millions)		2021		2020
Video distribution programming		$	3,515	$	3,215
Film and television content:
Owned(a)		1,964		2,127
Licensed, including sports rights		3,175		2,664
Other		265		295
Total programming and production costs		$	8,919	$	8,301

(a) Amount includes amortization of owned content of $1.6 billion and $1.8 billion for the three months ended March 31, 2021 and 2020, respectively, as well as participations and residuals expenses.

Capitalized Film and Television Costs and Programming Rights

Capitalized Film and Television Costs


(in millions)	March 31, 2021		December 31, 2020
Owned:
Released, less amortization	$	3,885	$	3,815
Completed, not released	626		139
In production and in development	2,369		2,755
	6,880		6,709
Licensed, including sports advances	6,103		6,631


Film and television costs	$	12,983	$	13,340

Investments (Tables)

3 Months Ended

Mar. 31, 2021

Investments [Abstract]

Investment and Other Income (Loss), Net


	Three Months Ended March 31,
(in millions)		2021		2020
Equity in net income (losses) of investees, net		$	136	$	(668)
Realized and unrealized gains (losses) on equity securities, net		237		(58)
Other income (loss), net		17		10
Investment and other income (loss), net		$	390	$	(716)

Investment Summary


(in millions)	March 31, 2021		December 31, 2020
Equity method	$	6,048	$	6,006
Marketable equity securities	260		460
Nonmarketable equity securities	2,021		1,950
Other investments	130		143
Total investments	8,459		8,559
Less: Current investments	83		292
Less: Investment securing collateralized obligation	487		447
Noncurrent investments	$	7,889	$	7,820

Equity and Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Schedule of weighted average common shares outstanding

Weighted-Average Common Shares Outstanding


	Three Months Ended March 31,
(in millions)		2021	2020
Weighted-average number of common shares outstanding – basic		4,591	4,562
Effect of dilutive securities		74	55
Weighted-average number of common shares outstanding – diluted		4,665	4,617

Schedule of accumulated other comprehensive income (loss)

Accumulated Other Comprehensive Income (Loss)


(in millions)	March 31, 2021		December 31, 2020
Cumulative translation adjustments	$	1,769	$	1,790

Deferred gains (losses) on cash flow hedges	10		(109)
Unrecognized gains (losses) on employee benefit obligations and other	193		203

Accumulated other comprehensive income (loss), net of deferred taxes	$	1,972	$	1,884

Schedule of recognized share-based compensation expense

Recognized Share-Based Compensation Expense


	Three Months Ended March 31,
(in millions)		2021		2020
Restricted share units		$	206	$	141
Stock options		90		71
Employee stock purchase plans		11		12
Total		$	307	$	224

Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2021

Supplemental Financial Information [Abstract]

Schedule of cash payments for interest and income taxes

Cash Payments for Interest and Income Taxes


	Three Months Ended March 31,
(in millions)	2021		2020
Interest	$	911	$	991
Income taxes	$	87	$	281

Schedule of cash, cash equivalents and restricted cash


(in millions)	March 31, 2021		December 31, 2020
Cash and cash equivalents	$	14,950	$	11,740
Restricted cash included in other current assets	12		14
Restricted cash included in other noncurrent assets, net	14		14
Cash, cash equivalents and restricted cash, end of period	$	14,976	$	11,768

Segment Information (Details) $ in Millions	3 Months Ended
Segment Information (Details) $ in Millions	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	5
Financial Data by Business Segment
Revenue	$ 27,205	$ 26,609
Adjusted EBITDA	8,413	8,130
Depreciation and Amortization	3,362	3,264
Capital Expenditures	1,859	1,881
Cash Paid for Intangible Assets	612	618
Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	1,753	1,167
Eliminations [Member]
Financial Data by Business Segment
Revenue	(710)	(675)
Adjusted EBITDA	10	7
Depreciation and Amortization	0	0
Capital Expenditures	0	0
Cash Paid for Intangible Assets	$ 0	0
Cable Communications [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	1
Financial Data by Business Segment
Revenue	$ 15,805	14,918
Adjusted EBITDA	6,830	6,076
Depreciation and Amortization	1,929	1,946
Capital Expenditures	1,370	1,269
Cash Paid for Intangible Assets	315	356
Cable Communications [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	45	42
Media [Member] \| Operating Segments [Member]
Financial Data by Business Segment
Revenue	5,036	4,878
Adjusted EBITDA	1,473	1,529
Depreciation and Amortization	247	243
Capital Expenditures	10	31
Cash Paid for Intangible Assets	32	38
Media [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	540	544
Studios [Member] \| Operating Segments [Member]
Financial Data by Business Segment
Revenue	2,396	2,409
Adjusted EBITDA	497	300
Depreciation and Amortization	12	17
Capital Expenditures	1	4
Cash Paid for Intangible Assets	2	1
Studios [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	1,089	540
Theme Parks [Member] \| Operating Segments [Member]
Financial Data by Business Segment
Revenue	619	925
Adjusted EBITDA	(61)	87
Depreciation and Amortization	207	190
Capital Expenditures	126	296
Cash Paid for Intangible Assets	6	15
Theme Parks [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	1	0
Headquarters and Other [Member] \| Operating Segments [Member]
Financial Data by Business Segment
Revenue	16	9
Adjusted EBITDA	(209)	(221)
Depreciation and Amortization	117	116
Capital Expenditures	35	46
Cash Paid for Intangible Assets	28	41
Headquarters and Other [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	$ 12	2
NBCUniversal Segments [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	3
Financial Data by Business Segment
Revenue	$ 7,024	7,729
Adjusted EBITDA	1,490	1,689
Depreciation and Amortization	583	566
Capital Expenditures	172	377
Cash Paid for Intangible Assets	68	95
NBCUniversal Segments [Member] \| Eliminations [Member]
Financial Data by Business Segment
Revenue	(1,043)	(492)
Adjusted EBITDA	(210)	(6)
Depreciation and Amortization	0	0
Capital Expenditures	0	0
Cash Paid for Intangible Assets	$ 0	0
Sky Limited [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	1
Financial Data by Business Segment
Revenue	$ 4,997	4,517
Adjusted EBITDA	364	551
Depreciation and Amortization	814	718
Capital Expenditures	271	197
Cash Paid for Intangible Assets	201	166
Sky Limited [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	8	2
Corporate and Other [Member] \| Operating Segments [Member]
Financial Data by Business Segment
Revenue	89	120
Adjusted EBITDA	(281)	(193)
Depreciation and Amortization	36	34
Capital Expenditures	46	38
Cash Paid for Intangible Assets	28	1
Corporate and Other [Member] \| Total Intersegment Eliminations [Member]
Financial Data by Business Segment
Revenue	$ 58	$ 37

Segment Information (Reconciliation of Adjusted EBITDA from Segment to Consolidated Statements) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting [Abstract]
Adjusted EBITDA	$ 8,413	$ 8,130
Adjustment for Sky transaction-related costs	(12)	(14)
Depreciation	(2,117)	(2,107)
Amortization	(1,245)	(1,157)
Interest expense	(1,018)	(1,212)
Investment and other income (loss), net	390	(716)
Income before income taxes	$ 4,411	$ 2,924

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(8))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

Segment Information (Schedule of Change in Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($)
Goodwill [Roll Forward]
Balance, beginning of period	$ 70,669
Foreign currency translation and other	(600)
Balance, end of period	70,106
Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	0
Operating Segments [Member] \| Cable Communications [Member]
Goodwill [Roll Forward]
Balance, beginning of period	15,300
Foreign currency translation and other	100
Balance, end of period	15,400
Operating Segments [Member] \| Cable Communications [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	0
Operating Segments [Member] \| Cable Networks [Member]
Goodwill [Roll Forward]
Balance, beginning of period	14,000
Foreign currency translation and other	0
Balance, end of period	0
Operating Segments [Member] \| Cable Networks [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	(14,000)
Operating Segments [Member] \| Broadcast Television [Member]
Goodwill [Roll Forward]
Balance, beginning of period	1,100
Foreign currency translation and other	0
Balance, end of period	0
Operating Segments [Member] \| Broadcast Television [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	(1,100)
Operating Segments [Member] \| Filmed Entertainment [Member]
Goodwill [Roll Forward]
Balance, beginning of period	3,300
Foreign currency translation and other	0
Balance, end of period	0
Operating Segments [Member] \| Filmed Entertainment [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	(3,300)
Operating Segments [Member] \| Media [Member]
Goodwill [Roll Forward]
Balance, beginning of period	0
Foreign currency translation and other	0
Balance, end of period	14,700
Operating Segments [Member] \| Media [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	14,700
Operating Segments [Member] \| Studios [Member]
Goodwill [Roll Forward]
Balance, beginning of period	0
Foreign currency translation and other	0
Balance, end of period	3,700
Operating Segments [Member] \| Studios [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	3,700
Operating Segments [Member] \| Theme Parks [Member]
Goodwill [Roll Forward]
Balance, beginning of period	7,000
Foreign currency translation and other	(400)
Balance, end of period	6,600
Operating Segments [Member] \| Theme Parks [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	0
Operating Segments [Member] \| Sky Limited [Member]
Goodwill [Roll Forward]
Balance, beginning of period	30,000
Foreign currency translation and other	(300)
Balance, end of period	29,700
Operating Segments [Member] \| Sky Limited [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	0
Operating Segments [Member] \| Corporate and Other [Member]
Goodwill [Roll Forward]
Balance, beginning of period	0
Foreign currency translation and other	0
Balance, end of period	0
Operating Segments [Member] \| Corporate and Other [Member] \| Segment Change
Goodwill [Roll Forward]
Balance, beginning of period	$ 0

Revenue (Details) - USD ($) $ in Millions	3 Months Ended
Revenue (Details) - USD ($) $ in Millions	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 27,205	$ 26,609
Operating Segments [Member] \| Cable Communications [Member]
Disaggregation of Revenue [Line Items]
Revenue	15,805	14,918
Operating Segments [Member] \| Cable Communications [Member] \| Residential, Broadband [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,600	5,001
Operating Segments [Member] \| Cable Communications [Member] \| Residential, Video [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,623	5,632
Operating Segments [Member] \| Cable Communications [Member] \| Residential, Voice [Member]
Disaggregation of Revenue [Line Items]
Revenue	871	899
Operating Segments [Member] \| Cable Communications [Member] \| Residential, Wireless [Member]
Disaggregation of Revenue [Line Items]
Revenue	513	343
Operating Segments [Member] \| Cable Communications [Member] \| Business Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,167	2,043
Operating Segments [Member] \| Cable Communications [Member] \| Advertising [Member]
Disaggregation of Revenue [Line Items]
Revenue	618	557
Operating Segments [Member] \| Cable Communications [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	413	443
Operating Segments [Member] \| NBCUniversal Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,024	7,729
Operating Segments [Member] \| Media [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,036	4,878
Operating Segments [Member] \| Media [Member] \| Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,495	2,287
Operating Segments [Member] \| Media [Member] \| Advertising [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,094	2,167
Operating Segments [Member] \| Media [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	447	424
Operating Segments [Member] \| Studios [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,396	2,409
Operating Segments [Member] \| Studios [Member] \| Content Licensing [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,075	1,819
Operating Segments [Member] \| Studios [Member] \| Theatrical [Member]
Disaggregation of Revenue [Line Items]
Revenue	39	316
Operating Segments [Member] \| Studios [Member] \| Home Entertainment And Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	282	274
Operating Segments [Member] \| Theme Parks [Member]
Disaggregation of Revenue [Line Items]
Revenue	619	925
Operating Segments [Member] \| Headquarters and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	16	9
Operating Segments [Member] \| Sky Limited [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,997	4,517
Operating Segments [Member] \| Sky Limited [Member] \| Direct To Consumer [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,065	3,679
Operating Segments [Member] \| Sky Limited [Member] \| Content [Member]
Disaggregation of Revenue [Line Items]
Revenue	358	325
Operating Segments [Member] \| Sky Limited [Member] \| Advertising [Member]
Disaggregation of Revenue [Line Items]
Revenue	574	513
Operating Segments [Member] \| Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	89	120
Total Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,753	1,167
Total Intersegment Eliminations [Member] \| Cable Communications [Member]
Disaggregation of Revenue [Line Items]
Revenue	45	42
Total Intersegment Eliminations [Member] \| Media [Member]
Disaggregation of Revenue [Line Items]
Revenue	540	544
Total Intersegment Eliminations [Member] \| Studios [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,089	540
Total Intersegment Eliminations [Member] \| Theme Parks [Member]
Disaggregation of Revenue [Line Items]
Revenue	1	0
Total Intersegment Eliminations [Member] \| Headquarters and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	12	2
Total Intersegment Eliminations [Member] \| Sky Limited [Member]
Disaggregation of Revenue [Line Items]
Revenue	8	2
Total Intersegment Eliminations [Member] \| Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	58	37
Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(710)	(675)
Eliminations [Member] \| NBCUniversal Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ (1,043)	$ (492)

Revenue (Revenue by Geographic Location) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 27,205	$ 26,609
United States [Member]
Disaggregation of Revenue [Line Items]
Revenue	21,156	20,690
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,352	5,033
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 697	$ 886

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

Revenue (Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Revenues [Abstract]
Receivables, gross	$ 11,764	$ 12,273
Less: Allowance for doubtful accounts	778	807
Receivables, net	10,986	11,466
Noncurrent receivables, net (included in other noncurrent assets, net)	1,061	1,091
Contract acquisition and fulfillment costs (included in other noncurrent assets, net)	1,048	1,060
Noncurrent deferred revenue (included in other noncurrent liabilities)	$ 726	$ 750

Programming and Production Costs (Recognized Programming and Production Costs) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Industries [Abstract]
Video distribution programming	$ 3,515	$ 3,215
Film and television content:
Owned	1,964	2,127
Licensed, including sports rights	3,175	2,664
Other	265	295
Total programming and production costs	8,919	8,301
Amortization of owned film and television costs	$ 1,600	$ 1,800

Programming and Production Costs (Capitalized Film and Television Costs and Programming Rights) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Owned:
Released, less amortization	$ 3,885	$ 3,815
Completed, not released	626	139
In production and in development	2,369	2,755
Owned	6,880	6,709
Licensed, including sports advances	6,103	6,631
Film and television costs	$ 12,983	$ 13,340

Long-Term Debt (Narrative) (Details) - USD ($) $ in Billions	3 Months Ended
	Mar. 31, 2021	Feb. 28, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Total carrying value of debt	$ 103.7		$ 103.8
Total fair value of debt	117.8		125.6
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Borrowings outstanding under credit facility	0.0		$ 0.0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	11.0	$ 9.2
Potential increased maximum borrowing capacity under the revolving credit facility	$ 14.0
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Spread on variable rate	1.00%

Significant Transactions (Universal Beijing Resort) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Consolidated variable interest entity's assets included in condensed consolidated balance sheet	$ 278,511	$ 273,869
Universal Beijing Resort [Member] \| Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Ownership percentage in variable interest entity	30.00%
Principal amount of term loan outstanding	$ 3,000
Consolidated variable interest entity's assets included in condensed consolidated balance sheet	8,500
Consolidated variable interest entity's liabilities included in condensed consolidated balance sheet	6,800
Universal Beijing Resort [Member] \| Variable Interest Entity, Primary Beneficiary [Member] \| Universal Beijing Resort Term Loans [Member]
Variable Interest Entity [Line Items]
Principal amount of term loan outstanding	$ 2,700

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

+ Details

- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19-26)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Investments (Investment and Other Income (Loss), Net) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments [Abstract]
Equity in net income (losses) of investees, net	$ 136	$ (668)
Realized and unrealized gains (losses) on equity securities, net	237	(58)
Other income (loss), net	17	10
Investment and other income (loss), net	390	(716)
Unrealized gains (losses) recognized	$ 98	$ (59)

Investments (Schedule of Investments) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Investments [Abstract]
Equity method	$ 6,048	$ 6,006
Marketable equity securities	260	460
Nonmarketable equity securities	2,021	1,950
Other investments	130	143
Total investments	8,459	8,559
Less: Current investments	83	292
Less: Investment securing collateralized obligation	487	447
Noncurrent investments	$ 7,889	$ 7,820

Investments (Equity Method Investments) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Equity method investment	$ 6,048			$ 6,006
Proceeds from collateralized obligation			$ 5,200
Collateralized obligation	5,168			5,168
Level 2 [Member]
Schedule of Equity Method Investments [Line Items]
Collateralized obligation	5,200			5,200
Fair value of collateralized obligation	5,200			5,200
Atairos [Member]
Schedule of Equity Method Investments [Line Items]
Cash capital contributions for equity method investments	12	$ 12
Equity method investment	$ 3,900			$ 3,900

Equity and Share-Based Compensation (Weighted Average Common Shares Outstanding) (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Equity [Abstract]
Weighted average number of common shares outstanding – basic (in shares)	4,591	4,562
Effect of dilutive securities (in shares)	74	55
Weighted-average number of common shares outstanding – diluted (in shares)	4,665	4,617

Equity and Share-Based Compensation (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Equity [Abstract]
Cumulative translation adjustments	$ 1,769	$ 1,790
Deferred gains (losses) on cash flow hedges	10	(109)
Unrecognized gains (losses) on employee benefit obligations and other	193	203
Accumulated other comprehensive income (loss), net of deferred taxes	$ 1,972	$ 1,884

- 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

Equity and Share-Based Compensation (Narrative) (Details) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares
Management Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted (in shares) \| shares	42.3
Weighted-average fair value of stock options granted (in dollars per share) \| $ / shares	$ 9.64
Restricted Share Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized pretax compensation expense on nonvested awards \| $	$ 1,600
Restricted Share Units (RSUs) [Member] \| Management Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted share units granted (in shares) \| shares	12.8
Weighted-average fair value of restricted share units granted (in dollars per share) \| $ / shares	$ 54.62
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized pretax compensation expense on nonvested awards \| $	$ 821

Equity and Share-Based Compensation (Recognized Share-Based Compensation Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	$ 307	$ 224
Restricted Share Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	206	141
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	90	71
Employee Stock Purchase Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	$ 11	$ 12

Supplemental Financial Information (Cash Payments for Interest and Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Payments for Interest and Income Taxes
Interest	$ 911	$ 991
Income taxes	$ 87	$ 281

Supplemental Financial Information (Noncash Activities) (Details) - USD ($) $ / shares in Units, $ in Billions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Supplemental Financial Information [Line Items]
Property and equipment and intangible assets accrued but not yet paid	$ 1.6	$ 1.6
Dividends payable	$ 1.2	$ 1.1
Dividends payable (in dollars per share)	$ 0.25	$ 0.23
Universal Beijing Resort [Member]
Supplemental Financial Information [Line Items]
Operating lease assets and liabilities recognized	$ 2.7
Lease terms	33 years
Weighted average discount rate on operating lease	4.40%

Supplemental Financial Information (Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Supplemental Financial Information [Abstract]
Cash and cash equivalents	$ 14,950	$ 11,740
Restricted cash included in other current assets	12	14
Restricted cash included in other noncurrent assets, net	14	14
Cash, cash equivalents and restricted cash, end of period	$ 14,976	$ 11,768	$ 8,609	$ 5,589

Commitments and Contingencies (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($)
NBCUniversal Enterprise [Member]
Commitments And Contingencies [Line Items]
Cash payments for the redemption of redeemable subsidiary preferred stock	$ 725