0001166691-24-000031 | 10-Q | XBRL Viewer

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 3,777	$ 3,767
Currency translation adjustments, net of deferred taxes of $(21) and $(2)	(436)	778
Cash flow hedges:
Deferred gains (losses), net of deferred taxes of $(1) and $9	19	(14)
Realized (gains) losses reclassified to net income, net of deferred taxes of $(1) and $8	1	(47)
Employee benefit obligations and other, net of deferred taxes of $5 and $1	(24)	(6)
Other comprehensive income (loss)	(440)	711
Comprehensive income	3,337	4,478
Less: Net income (loss) attributable to noncontrolling interests	(79)	(67)
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(13)	(3)
Comprehensive income attributable to Comcast Corporation	$ 3,429	$ 4,547

Investments and Variable Interest Entities

3 Months Ended

Mar. 31, 2024

Investments [Abstract]

Investments and Variable Interest Entities

Investment and Other Income (Loss), Net


	Three Months Ended March 31,
(in millions)		2024		2023
Equity in net income (losses) of investees, net		$	158	$	485
Realized and unrealized gains (losses) on equity securities, net		(51)		(6)
Other income (loss), net		191		128
Investment and other income (loss), net		$	298	$	607

The amount of unrealized gains (losses), net recognized in the three months ended March 31, 2024 and 2023 that related to marketable and nonmarketable equity securities still held as of the end of each reporting period was $(70) million and $(24) million, respectively.

Investments


(in millions)	March 31, 2024		December 31, 2023
Equity method	$	7,850	$	7,615
Marketable equity securities	56		39
Nonmarketable equity securities	1,410		1,482
Other investments	562		559
Total investments	9,878		9,694
Less: Current investments	330		310
Noncurrent investments	$	9,548	$	9,385

Equity Method Investments

The amount of cash distributions received from equity method investments presented within operating activities in the condensed consolidated statements of cash flows in the three months ended March 31, 2024 and 2023 was $32 million and $20 million, respectively.

Atairos

Atairos is a variable interest entity (“VIE”) that 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 the three months ended March 31, 2024 and 2023, we made cash capital contributions to Atairos totaling $13 million and $14 million, respectively. As of March 31, 2024 and December 31, 2023, our investment in Atairos, inclusive of certain distributions retained by Atairos on our behalf and classified as advances within other investments, was $5.7 billion and $5.5 billion, respectively. As of March 31, 2024, our remaining unfunded capital commitment was $1.4 billion.

Other Investments

Other investments also includes investments in certain short-term instruments, which totaled $259 million and $254 million as of March 31, 2024 and December 31, 2023, respectively. The carrying amounts of these investments approximate their fair values, which are primarily based on Level 2 inputs that use interest rates for instruments with similar terms and remaining maturities. Proceeds from short-term instruments for the three months ended March 31, 2024 and 2023 were $255 million and $304 million, respectively. Purchases of short-term instruments for the three months ended March 31, 2024 were $257 million. There were no purchases of short-term instruments for the three months ended March 31, 2023.

Consolidated Variable Interest Entity

Universal Beijing Resort

We own a 30% interest in a Universal theme park and resort in Beijing, China (“Universal Beijing Resort”). Universal Beijing Resort is a consolidated VIE with the remaining interest owned by a consortium of Chinese state-owned companies. The construction was funded through a combination of debt financing and equity contributions from the partners in accordance with their equity interests. As of March 31, 2024, Universal Beijing Resort had $3.5 billion of debt outstanding, including $3.1 billion principal amount of a term loan outstanding under the debt financing agreement. As of December 31, 2023, Universal Beijing Resort had $3.5 billion of debt outstanding, including $3.1 billion principal amount of a term loan outstanding under the debt financing agreement.

As of March 31, 2024, our condensed consolidated balance sheets included assets and liabilities of Universal Beijing Resort totaling $7.5 billion and $7.1 billion, respectively. As of December 31, 2023, our condensed consolidated balance sheets included assets and liabilities of Universal Beijing Resort totaling $7.8 billion and $7.2 billion, respectively. The assets and liabilities of Universal Beijing Resort primarily consist of property and equipment, operating lease assets and liabilities, and debt.

Segment Information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Schedule of Financial Data by Business Segment

We are a global media and technology company with two primary businesses: Connectivity & Platforms and Content & Experiences. We present the operations of (1) our Connectivity & Platforms business in two segments: Residential Connectivity & Platforms and Business Services Connectivity; and (2) our Content & Experiences business in three segments: Media, Studios and Theme Parks.

Our financial data by segment is presented in the tables below. We do not present asset information for our segments as this information is not used to allocate resources and capital.


	Three Months Ended March 31,
	2024				2023
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Revenue(a)		Adjusted EBITDA(b)
Connectivity & Platforms
Residential Connectivity & Platforms	$	17,868	$	6,852	$	17,869	$	6,762
Business Services Connectivity	2,407		1,366		2,283		1,332
Connectivity & Platforms	20,275		8,218		20,153		8,093
Content & Experiences
Media	6,371		827		6,152		880
Studios	2,743		244		2,956		277
Theme Parks	1,979		632		1,949		658
Headquarters and Other	12		(243)		19		(232)
Eliminations(a)	(731)		33		(817)		24
Content & Experiences	10,374		1,493		10,259		1,607
Corporate and Other	767		(329)		707		(288)
Eliminations(a)	(1,358)		(26)		(1,427)		3
Comcast Consolidated	$	30,058	$	9,355	$	29,691	$	9,415

(a)Included in Eliminations are transactions that our segments enter into with one another. The most significant of these transactions include distribution revenue in Media related to fees from Residential Connectivity & Platforms for the rights to distribute television programming and content licensing revenue in Studios for licenses of owned content to Media.

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)	2024		2023
Connectivity & Platforms
Residential Connectivity & Platforms	$	38	$	53
Business Services Connectivity	6		—
Content & Experiences
Media	1,149		1,167
Studios	838		962
Theme Parks	—		—
Headquarters and Other	8		8
Corporate and Other	51		54
Total intersegment revenue	$	2,089	$	2,244

(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 within Corporate and Other. Our reconciliation of the aggregate amount of Adjusted EBITDA for our segments to consolidated income before income taxes is presented in the table below.


	Three Months Ended March 31,
(in millions)	2024		2023
Adjusted EBITDA	$	9,355	$	9,415
Adjustments	6		8
Depreciation	(2,175)		(2,264)
Amortization	(1,376)		(1,513)



Interest expense	(1,002)		(1,010)
Investment and other income (loss), net	298		607

Income (loss) before income taxes	$	5,105	$	5,243

Adjustments represent the impact of certain events, gains, losses or other charges that are excluded from Adjusted EBITDA, including costs related to our investment portfolio.

Schedule of Reconciliation of Adjusted EBITDA from Segments to Consolidated

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


	Three Months Ended March 31,
(in millions)	2024		2023
Adjusted EBITDA	$	9,355	$	9,415
Adjustments	6		8
Depreciation	(2,175)		(2,264)
Amortization	(1,376)		(1,513)



Interest expense	(1,002)		(1,010)
Investment and other income (loss), net	298		607

Income (loss) before income taxes	$	5,105	$	5,243

Adjustments represent the impact of certain events, gains, losses or other charges that are excluded from Adjusted EBITDA, including costs related to our investment portfolio.

Segment Information - Narrative (Details)	3 Months Ended
Segment Information - Narrative (Details)	Mar. 31, 2024 business segment
Segment Reporting Information [Line Items]
Number of primary businesses \| business	2
Connectivity & Platforms
Segment Reporting Information [Line Items]
Number of reportable segments	2
Content & Experiences
Segment Reporting Information [Line Items]
Number of reportable segments	3

Debt (Details) - USD ($) $ in Billions	Mar. 31, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Total carrying value of debt	$ 96.6	$ 97.1
Total fair value of debt	$ 89.5	$ 92.2

Programming and Production Costs - Schedule of Recognized Programming and Production Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Other Industries [Abstract]
Video distribution programming	$ 3,020	$ 3,191
Film and television content:
Owned	2,562	2,734
Licensed, including sports rights	2,924	2,732
Other	317	347
Total programming and production costs	8,823	9,004
Amortization of owned film and television costs	$ 2,100	$ 2,200

Equity and Share-Based Compensation - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ 83,049	$ 83,226	$ 83,033
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	(2,019)	(1,596)
Deferred gains (losses) on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	70	49
Unrecognized gains (losses) on employee benefit obligations and other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	269	293
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ (1,680)	$ (1,253)	$ (1,898)	$ (2,611)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

- Definition

Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

+ References

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+ Details

Condensed Consolidated Financial Statements (Policies)	3 Months Ended
Condensed Consolidated Financial Statements (Policies)	Mar. 31, 2024
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 2023 Annual Report on Form 10-K.
Recent Accounting Pronouncements	Segment Disclosures In November 2023, the Financial Accounting Standards Board (“FASB”) issued updated accounting guidance related to annual and interim segment disclosures. The updated accounting guidance, among other things, requires disclosure of certain significant segment expenses. We will adopt the updated accounting guidance in our Annual Report on Form 10-K for the year ended December 31, 2024. Income Tax Disclosures In December 2023, the FASB issued updated accounting guidance related to income tax disclosures. The updated accounting guidance, among other things, requires additional disclosure primarily related to the income tax rate reconciliation and income taxes paid. We will adopt the updated accounting guidance in our Annual Report on Form 10-K for the year ended December 31, 2025.
Earnings Per Share	Weighted-average common shares outstanding used in calculating diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Antidilutive securities represent the number of potential common shares related to share-based compensation awards that were excluded from diluted EPS because their effect would have been antidilutive.

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Currency translation adjustments, net of deferred taxes	$ (21)	$ (2)
Deferred gains (losses) on cash flow hedges, deferred taxes	(1)	9
Realized (gains) losses on cash flow hedges, deferred taxes	(1)	8
Employee benefit obligations and other, deferred taxes	$ 5	$ 1

Supplemental Financial Information - Schedule of Cash Payments for Interest and Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest	$ 731	$ 766
Income taxes	$ 349	$ 148

Equity and Share-Based Compensation

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Equity and Share-Based Compensation

Weighted-Average Common Shares Outstanding


	Three Months Ended March 31,
(in millions)		2024	2023
Weighted-average number of common shares outstanding – basic		3,959	4,208
Effect of dilutive securities		34	19
Weighted-average number of common shares outstanding – diluted		3,992	4,227

Antidilutive securities		162	202

Weighted-average common shares outstanding used in calculating diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Antidilutive securities represent the number of potential common shares related to share-based compensation awards that were excluded from diluted EPS because their effect would have been antidilutive.

Accumulated Other Comprehensive Income (Loss)


(in millions)	March 31, 2024		December 31, 2023
Cumulative translation adjustments	$	(2,019)	$	(1,596)

Deferred gains (losses) on cash flow hedges	70		49
Unrecognized gains (losses) on employee benefit obligations and other	269		293

Accumulated other comprehensive income (loss), net of deferred taxes	$	(1,680)	$	(1,253)

Share-Based Compensation

Our share-based compensation plans consist primarily of awards of restricted share units (“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 2024, we granted 31 million RSUs and 3 million stock options related to our annual management awards. The weighted-average fair values associated with these grants were $42.62 per RSU and $9.49 per stock option. During the three months ended March 31, 2024 and 2023, share-based compensation expense recognized in our condensed consolidated statements of income was $303 million and $295 million, respectively. As of March 31, 2024, we had unrecognized pretax compensation expense of $2.8 billion related to nonvested RSUs and nonvested stock options.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481004/946-505-50-6

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-6

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//505/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-16

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-18

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-18

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-18

+ Details

Investments and Variable Interest Entities - Schedule of Investments (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Investments [Abstract]
Equity method	$ 7,850	$ 7,615
Marketable equity securities	56	39
Nonmarketable equity securities	1,410	1,482
Other investments	562	559
Total investments	9,878	9,694
Less: Current investments	330	310
Noncurrent investments	$ 9,548	$ 9,385

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Property and equipment - accumulated depreciation	$ 59,163	$ 58,701
Accumulated Amortization	$ 31,023	$ 30,290
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Treasury shares	872,791,028	872,791,028
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	7,500,000,000	7,500,000,000
Common stock, shares issued	4,798,654,750	4,842,108,959
Common stock, shares outstanding at end of period (in shares)	3,925,863,722	3,969,317,931
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	9,444,375	9,444,375
Common stock, shares outstanding at end of period (in shares)	9,444,375	9,444,375

Investments and Variable Interest Entities (Tables)

3 Months Ended

Mar. 31, 2024

Investments [Abstract]

Schedule of Investment and Other Income (Loss), Net

Investment and Other Income (Loss), Net


	Three Months Ended March 31,
(in millions)		2024		2023
Equity in net income (losses) of investees, net		$	158	$	485
Realized and unrealized gains (losses) on equity securities, net		(51)		(6)
Other income (loss), net		191		128
Investment and other income (loss), net		$	298	$	607

Schedule of Investment Summary

Investments


(in millions)	March 31, 2024		December 31, 2023
Equity method	$	7,850	$	7,615
Marketable equity securities	56		39
Nonmarketable equity securities	1,410		1,482
Other investments	562		559
Total investments	9,878		9,694
Less: Current investments	330		310
Noncurrent investments	$	9,548	$	9,385

Revenue - Schedule of Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Revenues [Abstract]
Receivables, gross	$ 13,860	$ 14,511
Less: Allowance for credit losses	716	698
Receivables, net	13,144	13,813
Noncurrent receivables, net (included in other noncurrent assets, net)	1,899	1,914
Noncurrent deferred revenue (included in other noncurrent liabilities)	$ 622	$ 618

Revenue (Tables)

3 Months Ended

Mar. 31, 2024

Revenues [Abstract]

Schedule of Disaggregation of Revenue


	Three Months Ended March 31,
(in millions)		2024		2023
Domestic broadband		$	6,591	$	6,343
Domestic wireless		972		858
International connectivity		1,116		897
Total residential connectivity		8,679		8,099
Video		6,876		7,382
Advertising		951		907
Other		1,362		1,482
Total Residential Connectivity & Platforms		17,868		17,869

Total Business Services Connectivity		2,407		2,283
Total Connectivity & Platforms		20,275		20,153

Domestic advertising		2,025		2,025
Domestic distribution		2,906		2,709
International networks		1,021		1,008
Other		420		410
Total Media		6,371		6,152

Content licensing		2,101		2,344
Theatrical		330		319
Other		312		292
Total Studios		2,743		2,956

Total Theme Parks		1,979		1,949

Headquarters and Other		12		19
Eliminations(a)		(731)		(817)
Total Content & Experiences		10,374		10,259

Corporate and Other		767		707
Eliminations(a)		(1,358)		(1,427)
Total revenue		$	30,058	$	29,691

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

Schedule of Receivables, Net


(in millions)	March 31, 2024		December 31, 2023
Receivables, gross	$	13,860	$	14,511
Less: Allowance for credit losses	716		698
Receivables, net	$	13,144	$	13,813

Schedule of Other Balance Sheet Accounts

The following table summarizes our other balances that are not separately presented in our condensed consolidated balance sheets that relate to the recognition of revenue and collection of the related cash.


(in millions)	March 31, 2024		December 31, 2023
Noncurrent receivables, net (included in other noncurrent assets, net)	$	1,899	$	1,914
Noncurrent deferred revenue (included in other noncurrent liabilities)	$	622	$	618

Our accounts receivables include amounts not yet billed related to equipment installment plans, as summarized in the table below.


(in millions)	March 31, 2024		December 31, 2023
Receivables, net	$	1,708	$	1,695
Noncurrent receivables, net (included in other noncurrent assets, net)	1,201		1,223

Total	$	2,909	$	2,918

Condensed Consolidated Financial Statements	3 Months Ended
Condensed Consolidated Financial Statements	Mar. 31, 2024
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 2023 Annual Report on Form 10-K. Recent Accounting Pronouncements Segment Disclosures In November 2023, the Financial Accounting Standards Board (“FASB”) issued updated accounting guidance related to annual and interim segment disclosures. The updated accounting guidance, among other things, requires disclosure of certain significant segment expenses. We will adopt the updated accounting guidance in our Annual Report on Form 10-K for the year ended December 31, 2024. Income Tax Disclosures In December 2023, the FASB issued updated accounting guidance related to income tax disclosures. The updated accounting guidance, among other things, requires additional disclosure primarily related to the income tax rate reconciliation and income taxes paid. We will adopt the updated accounting guidance in our Annual Report on Form 10-K for the year ended December 31, 2025.

Supplemental Financial Information

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Financial Information

Cash Payments for Interest and Income Taxes


	Three Months Ended March 31,
(in millions)	2024		2023
Interest	$	731	$	766
Income taxes	$	349	$	148

Noncash Activities

During the three months ended March 31, 2024:

•we acquired $2.0 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 $0.31 per common share paid in April 2024

During the three months ended March 31, 2023:

•we acquired $2.1 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 $0.29 per common share paid in April 2023

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 sheets to the total of the amounts reported in our condensed consolidated statements of cash flows.


(in millions)	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	6,515	$	6,215
Restricted cash included in other current assets and other noncurrent assets, net	71		67
Cash, cash equivalents and restricted cash, end of period	$	6,586	$	6,282

Equity and Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Weighted Average Common Shares Outstanding

Weighted-Average Common Shares Outstanding


	Three Months Ended March 31,
(in millions)		2024	2023
Weighted-average number of common shares outstanding – basic		3,959	4,208
Effect of dilutive securities		34	19
Weighted-average number of common shares outstanding – diluted		3,992	4,227

Antidilutive securities		162	202

Schedule of Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)


(in millions)	March 31, 2024		December 31, 2023
Cumulative translation adjustments	$	(2,019)	$	(1,596)

Deferred gains (losses) on cash flow hedges	70		49
Unrecognized gains (losses) on employee benefit obligations and other	269		293

Accumulated other comprehensive income (loss), net of deferred taxes	$	(1,680)	$	(1,253)

Programming and Production Costs

3 Months Ended

Mar. 31, 2024

Other Industries [Abstract]

Programming and Production Costs


	Three Months Ended March 31,
(in millions)		2024		2023
Video distribution programming		$	3,020	$	3,191
Film and television content:
Owned(a)		2,562		2,734
Licensed, including sports rights		2,924		2,732
Other		317		347
Total programming and production costs		$	8,823	$	9,004

(a) Amount includes amortization of owned content of $2.1 billion and $2.2 billion for the three months ended March 31, 2024 and 2023, respectively, as well as participations and residuals expenses.

Capitalized Film and Television Costs


(in millions)	March 31, 2024		December 31, 2023
Owned:
In production and in development	$	2,821	$	2,893
Completed, not released	383		317
Released, less amortization	4,188		4,340
	7,392		7,551
Licensed, including sports advances	5,365		5,369


Film and television costs	$	12,757	$	12,920

Equity and Share-Based Compensation - Schedule of Weighted Average Common Shares Outstanding (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Equity [Abstract]
Weighted-average number of common shares outstanding – basic	3,959	4,208
Effect of dilutive securities	34	19
Weighted-average number of common shares outstanding – diluted	3,992	4,227
Antidilutive securities	162	202

Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 30,058	$ 29,691
Operating Segments \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	20,275	20,153
Operating Segments \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	10,374	10,259
Operating Segments \| Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,868	17,869
Operating Segments \| Residential Connectivity & Platforms \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,868	17,869
Operating Segments \| Residential Connectivity & Platforms \| Residential Connectivity \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	8,679	8,099
Operating Segments \| Residential Connectivity & Platforms \| Domestic broadband \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	6,591	6,343
Operating Segments \| Residential Connectivity & Platforms \| Domestic wireless \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	972	858
Operating Segments \| Residential Connectivity & Platforms \| International connectivity \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	1,116	897
Operating Segments \| Residential Connectivity & Platforms \| Video \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	6,876	7,382
Operating Segments \| Residential Connectivity & Platforms \| Advertising \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	951	907
Operating Segments \| Residential Connectivity & Platforms \| Other \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	1,362	1,482
Operating Segments \| Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	2,407	2,283
Operating Segments \| Business Services Connectivity \| Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	2,407	2,283
Operating Segments \| Media
Disaggregation of Revenue [Line Items]
Revenue	6,371	6,152
Operating Segments \| Media \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	6,371	6,152
Operating Segments \| Media \| Other \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	420	410
Operating Segments \| Media \| Domestic advertising \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	2,025	2,025
Operating Segments \| Media \| Domestic distribution \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	2,906	2,709
Operating Segments \| Media \| International networks \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	1,021	1,008
Operating Segments \| Studios
Disaggregation of Revenue [Line Items]
Revenue	2,743	2,956
Operating Segments \| Studios \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	2,743	2,956
Operating Segments \| Studios \| Other \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	312	292
Operating Segments \| Studios \| Content licensing \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	2,101	2,344
Operating Segments \| Studios \| Theatrical \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	330	319
Operating Segments \| Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	1,979	1,949
Operating Segments \| Theme Parks \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	1,979	1,949
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	767	707
Headquarters/Corporate and Other \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	12	19
Eliminations
Disaggregation of Revenue [Line Items]
Revenue	2,089	2,244
Eliminations \| Content & Experiences
Disaggregation of Revenue [Line Items]
Revenue	$ (731)	$ (817)

Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash Payments for Interest and Income Taxes

Cash Payments for Interest and Income Taxes


	Three Months Ended March 31,
(in millions)	2024		2023
Interest	$	731	$	766
Income taxes	$	349	$	148

Schedule of Cash and Cash Equivalents


(in millions)	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	6,515	$	6,215
Restricted cash included in other current assets and other noncurrent assets, net	71		67
Cash, cash equivalents and restricted cash, end of period	$	6,586	$	6,282

Schedule of Restricted Cash


(in millions)	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	6,515	$	6,215
Restricted cash included in other current assets and other noncurrent assets, net	71		67
Cash, cash equivalents and restricted cash, end of period	$	6,586	$	6,282

Programming and Production Costs (Tables)

3 Months Ended

Mar. 31, 2024

Other Industries [Abstract]

Schedule of Programming and Production Expense


	Three Months Ended March 31,
(in millions)		2024		2023
Video distribution programming		$	3,020	$	3,191
Film and television content:
Owned(a)		2,562		2,734
Licensed, including sports rights		2,924		2,732
Other		317		347
Total programming and production costs		$	8,823	$	9,004

(a) Amount includes amortization of owned content of $2.1 billion and $2.2 billion for the three months ended March 31, 2024 and 2023, respectively, as well as participations and residuals expenses.

Schedule of Capitalized Film and Television Costs

Capitalized Film and Television Costs


(in millions)	March 31, 2024		December 31, 2023
Owned:
In production and in development	$	2,821	$	2,893
Completed, not released	383		317
Released, less amortization	4,188		4,340
	7,392		7,551
Licensed, including sports advances	5,365		5,369


Film and television costs	$	12,757	$	12,920

Debt	3 Months Ended
Debt	Mar. 31, 2024
Debt Disclosure [Abstract]
Debt	DebtAs of March 31, 2024, our debt had a carrying value of $96.6 billion and an estimated fair value of $89.5 billion. As of December 31, 2023, our debt had a carrying value of $97.1 billion and an estimated fair value of $92.2 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.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
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+ Details

Supplemental Financial Information - Noncash Activities (Details) - USD ($) $ / shares in Units, $ in Billions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Property and equipment and intangible assets accrued but not yet paid	$ 2.0	$ 2.1
Dividends payable	$ 1.2	$ 1.2
Dividends payable (in dollars per share)	$ 0.31	$ 0.29

Programming and Production Costs - Schedule of Capitalized Film and Television Costs and Programming Rights (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Owned:
In production and in development	$ 2,821	$ 2,893
Completed, not released	383	317
Released, less amortization	4,188	4,340
Owned	7,392	7,551
Licensed, including sports advances	5,365	5,369
Film and television costs	$ 12,757	$ 12,920

Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Additional Paid-In Capital	Retained Earnings	Treasury Stock at Cost	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Class A Common Stock Common Stock
Balance, beginning of period at Dec. 31, 2022	$ 411
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	(7)
Net income	17
Balance, end of period at Mar. 31, 2023	422
Balance, beginning of period at Dec. 31, 2022		$ 39,412	$ 51,609	$ (7,517)	$ (2,611)	$ 684	$ 51
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		293
Repurchases of common stock under repurchase program and employee plans		(521)	(1,688)				0
Issuances of common stock under employee plans		76
Other		2
Dividends declared			(1,231)
Net income	3,834		3,834
Other comprehensive income (loss)	711				713	(3)
Contributions from (distributions to) noncontrolling interests, net						15
Net income (loss)	(67)					(84)
Balance, end of period at Mar. 31, 2023	$ 83,033	39,262	52,524	(7,517)	(1,898)	612	50
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.29
Balance, beginning of period at Dec. 31, 2023	$ 241
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	(10)
Net income	12
Balance, end of period at Mar. 31, 2024	243
Balance, beginning of period at Dec. 31, 2023	83,226	38,533	52,892	(7,517)	(1,253)	523	48
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		323
Repurchases of common stock under repurchase program and employee plans		(645)	(2,082)				0
Issuances of common stock under employee plans		62
Other		1
Dividends declared			(1,243)
Net income	3,857		3,857
Other comprehensive income (loss)	(440)				(427)	(13)
Contributions from (distributions to) noncontrolling interests, net						81
Net income (loss)	(79)					(91)
Balance, end of period at Mar. 31, 2024	$ 83,049	$ 38,274	$ 53,425	$ (7,517)	$ (1,680)	$ 500	$ 48
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.31

Revenue

3 Months Ended

Mar. 31, 2024

Revenues [Abstract]

Revenue


	Three Months Ended March 31,
(in millions)		2024		2023
Domestic broadband		$	6,591	$	6,343
Domestic wireless		972		858
International connectivity		1,116		897
Total residential connectivity		8,679		8,099
Video		6,876		7,382
Advertising		951		907
Other		1,362		1,482
Total Residential Connectivity & Platforms		17,868		17,869

Total Business Services Connectivity		2,407		2,283
Total Connectivity & Platforms		20,275		20,153

Domestic advertising		2,025		2,025
Domestic distribution		2,906		2,709
International networks		1,021		1,008
Other		420		410
Total Media		6,371		6,152

Content licensing		2,101		2,344
Theatrical		330		319
Other		312		292
Total Studios		2,743		2,956

Total Theme Parks		1,979		1,949

Headquarters and Other		12		19
Eliminations(a)		(731)		(817)
Total Content & Experiences		10,374		10,259

Corporate and Other		767		707
Eliminations(a)		(1,358)		(1,427)
Total revenue		$	30,058	$	29,691

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

Condensed Consolidated Balance Sheets


(in millions)	March 31, 2024		December 31, 2023
Receivables, gross	$	13,860	$	14,511
Less: Allowance for credit losses	716		698
Receivables, net	$	13,144	$	13,813


(in millions)	March 31, 2024		December 31, 2023
Noncurrent receivables, net (included in other noncurrent assets, net)	$	1,899	$	1,914
Noncurrent deferred revenue (included in other noncurrent liabilities)	$	622	$	618

Our accounts receivables include amounts not yet billed related to equipment installment plans, as summarized in the table below.


(in millions)	March 31, 2024		December 31, 2023
Receivables, net	$	1,708	$	1,695
Noncurrent receivables, net (included in other noncurrent assets, net)	1,201		1,223

Total	$	2,909	$	2,918

- 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
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 6,515	$ 6,215
Receivables, net	13,144	13,813
Other current assets	4,319	3,959
Total current assets	23,978	23,987
Film and television costs	12,757	12,920
Investments	9,548	9,385
Property and equipment, net of accumulated depreciation of $59,163 and $58,701	59,918	59,686
Goodwill	58,668	59,268
Franchise rights	59,365	59,365
Other intangible assets, net of accumulated amortization of $31,023 and $30,290	27,063	27,867
Other noncurrent assets, net	12,304	12,333
Total assets	263,601	264,811
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	11,792	12,437
Accrued participations and residuals	1,583	1,671
Deferred revenue	3,446	3,242
Accrued expenses and other current liabilities	11,834	11,613
Current portion of debt	2,502	2,069
Advance on sale of investment	9,167	9,167
Total current liabilities	40,324	40,198
Noncurrent portion of debt	94,071	95,021
Deferred income taxes	25,978	26,003
Other noncurrent liabilities	19,935	20,122
Commitments and contingencies
Redeemable noncontrolling interests	243	241
Equity:
Preferred stock—authorized, 20,000,000 shares; issued, zero	0	0
Additional paid-in capital	38,274	38,533
Retained earnings	53,425	52,892
Treasury stock, 872,791,028 Class A common shares	(7,517)	(7,517)
Accumulated other comprehensive income (loss)	(1,680)	(1,253)
Total Comcast Corporation shareholders’ equity	82,549	82,703
Noncontrolling interests	500	523
Total equity	83,049	83,226
Total liabilities and equity	263,601	264,811
Class A Common Stock
Equity:
Common stock	48	48
Class B Common Stock
Equity:
Common stock	$ 0	$ 0

Segment Information - Intersegment Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenue	$ 30,058	$ 29,691
Eliminations
Segment Reporting Information [Line Items]
Revenue	2,089	2,244
Headquarters/Corporate and Other
Segment Reporting Information [Line Items]
Revenue	51	54
Operating Segments \| Residential Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	17,868	17,869
Operating Segments \| Residential Connectivity & Platforms \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	38	53
Operating Segments \| Business Services Connectivity
Segment Reporting Information [Line Items]
Revenue	2,407	2,283
Operating Segments \| Business Services Connectivity \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	6	0
Operating Segments \| Media
Segment Reporting Information [Line Items]
Revenue	6,371	6,152
Operating Segments \| Media \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	1,149	1,167
Operating Segments \| Studios
Segment Reporting Information [Line Items]
Revenue	2,743	2,956
Operating Segments \| Studios \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	838	962
Operating Segments \| Theme Parks
Segment Reporting Information [Line Items]
Revenue	1,979	1,949
Operating Segments \| Theme Parks \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	0	0
Connectivity & Platforms \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	20,275	20,153
Connectivity & Platforms \| Operating Segments \| Residential Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	17,868	17,869
Connectivity & Platforms \| Operating Segments \| Business Services Connectivity
Segment Reporting Information [Line Items]
Revenue	2,407	2,283
Content & Experiences \| Eliminations
Segment Reporting Information [Line Items]
Revenue	(731)	(817)
Content & Experiences \| Headquarters/Corporate and Other
Segment Reporting Information [Line Items]
Revenue	8	8
Content & Experiences \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	10,374	10,259
Content & Experiences \| Operating Segments \| Media
Segment Reporting Information [Line Items]
Revenue	6,371	6,152
Content & Experiences \| Operating Segments \| Studios
Segment Reporting Information [Line Items]
Revenue	2,743	2,956
Content & Experiences \| Operating Segments \| Theme Parks
Segment Reporting Information [Line Items]
Revenue	$ 1,979	$ 1,949

Segment Information - Reconciliation of Adjusted EBITDA from Segment to Consolidated Statements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting [Abstract]
Adjusted EBITDA	$ 9,355	$ 9,415
Adjustments	6	8
Depreciation	(2,175)	(2,264)
Amortization	(1,376)	(1,513)
Interest expense	(1,002)	(1,010)
Investment and other income (loss), net	298	607
Income before income taxes	$ 5,105	$ 5,243

- 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
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(11))
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 22
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 32
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section S99
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

+ Details

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References + Details

Investments and Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Unrealized gains (losses) recognized	$ (70)	$ (24)
Cash distribution received from equity method investments	32	20
Other investments	562		$ 559
Assets	263,601		264,811
Short-Term Instruments
Schedule of Equity Method Investments [Line Items]
Other investments	259		254
Other Investments
Schedule of Equity Method Investments [Line Items]
Proceeds from short-term instruments	255	304
Purchase of short-term instruments	$ 257	0
Variable Interest Entity, Primary Beneficiary \| Universal Beijing Resort
Schedule of Equity Method Investments [Line Items]
Ownership percentage in variable interest entity	30.00%
Long-term debt	$ 3,500		3,500
Assets	7,500		7,800
Consolidated variable interest entity's liabilities included in condensed consolidated balance sheet	7,100		7,200
Variable Interest Entity, Primary Beneficiary \| Universal Beijing Resort \| Universal Beijing Resort Term Loans
Schedule of Equity Method Investments [Line Items]
Long-term debt	3,100		3,100
Atairos
Schedule of Equity Method Investments [Line Items]
Cash capital contributions for equity method investments	13	$ 14
Equity method investments and certain retained distributions	5,700		$ 5,500
Atairos \| Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Remaining unfunded capital commitment	$ 1,400

Equity and Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense		$ 303	$ 295
Unrecognized pretax compensation expense on nonvested awards	$ 2,800	$ 2,800
Management Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted (in shares)	3
Weighted-average fair value of stock options granted (in dollars per share)	$ 9.49
Restricted Stock Units (RSUs) \| Management Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted share units granted (in shares)	31
Weighted-average fair value of restricted share units granted (in dollars per share)	$ 42.62

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 35
-Paragraph 1D
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating Activities
Net income	$ 3,777	$ 3,767
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,551	3,777
Share-based compensation	373	359
Noncash interest expense (income), net	103	78
Net (gain) loss on investment activity and other	(164)	(517)
Deferred income taxes	(17)	82
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	643	363
Film and television costs, net	124	13
Accounts payable and accrued expenses related to trade creditors	(446)	(651)
Other operating assets and liabilities	(97)	(43)
Net cash provided by operating activities	7,848	7,228
Investing Activities
Capital expenditures	(2,630)	(2,664)
Cash paid for intangible assets	(679)	(765)
Construction of Universal Beijing Resort	(108)	(87)
Proceeds from sales of businesses and investments	274	343
Purchases of investments	(404)	(149)
Other	35	(48)
Net cash provided by (used in) investing activities	(3,511)	(3,370)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	0	(660)
Proceeds from borrowings	26	1,059
Repurchases and repayments of debt	(289)	(49)
Repurchases of common stock under repurchase program and employee plans	(2,664)	(2,176)
Dividends paid	(1,193)	(1,174)
Other	97	(82)
Net cash provided by (used in) financing activities	(4,023)	(3,082)
Impact of foreign currency on cash, cash equivalents and restricted cash	(10)	20
Increase (decrease) in cash, cash equivalents and restricted cash	304	796
Cash, cash equivalents and restricted cash, beginning of period	6,282	4,782
Cash, cash equivalents and restricted cash, end of period	$ 6,586	$ 5,577

Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Receivables, net	$ 13,144	$ 13,813
Noncurrent receivables, net (included in other noncurrent assets, net)	1,899	1,914
Equipment Installment Plan \| Notes Receivable \| Unbilled Revenues
Disaggregation of Revenue [Line Items]
Receivables, net	1,708	1,695
Noncurrent receivables, net (included in other noncurrent assets, net)	1,201	1,223
Total	$ 2,909	$ 2,918

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies 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 proceedings and claims is not expected to materially affect our results of operations, cash flows or financial position, any such legal proceedings or claims could be time-consuming and injure our reputation.

Supplemental Financial Information - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 6,515	$ 6,215
Restricted cash included in other current assets and other noncurrent assets, net	71	67
Cash, cash equivalents and restricted cash, end of period	$ 6,586	$ 6,282	$ 5,577	$ 4,782

Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

Our financial data by segment is presented in the tables below. We do not present asset information for our segments as this information is not used to allocate resources and capital.


	Three Months Ended March 31,
	2024				2023
(in millions)	Revenue(a)		Adjusted EBITDA(b)		Revenue(a)		Adjusted EBITDA(b)
Connectivity & Platforms
Residential Connectivity & Platforms	$	17,868	$	6,852	$	17,869	$	6,762
Business Services Connectivity	2,407		1,366		2,283		1,332
Connectivity & Platforms	20,275		8,218		20,153		8,093
Content & Experiences
Media	6,371		827		6,152		880
Studios	2,743		244		2,956		277
Theme Parks	1,979		632		1,949		658
Headquarters and Other	12		(243)		19		(232)
Eliminations(a)	(731)		33		(817)		24
Content & Experiences	10,374		1,493		10,259		1,607
Corporate and Other	767		(329)		707		(288)
Eliminations(a)	(1,358)		(26)		(1,427)		3
Comcast Consolidated	$	30,058	$	9,355	$	29,691	$	9,415

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)	2024		2023
Connectivity & Platforms
Residential Connectivity & Platforms	$	38	$	53
Business Services Connectivity	6		—
Content & Experiences
Media	1,149		1,167
Studios	838		962
Theme Parks	—		—
Headquarters and Other	8		8
Corporate and Other	51		54
Total intersegment revenue	$	2,089	$	2,244


	Three Months Ended March 31,
(in millions)	2024		2023
Adjusted EBITDA	$	9,355	$	9,415
Adjustments	6		8
Depreciation	(2,175)		(2,264)
Amortization	(1,376)		(1,513)



Interest expense	(1,002)		(1,010)
Investment and other income (loss), net	298		607

Income (loss) before income taxes	$	5,105	$	5,243

Adjustments represent the impact of certain events, gains, losses or other charges that are excluded from Adjusted EBITDA, including costs related to our investment portfolio.

- 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
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

+ Details

Segment Information - Schedule of Financial Data by Business Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenue	$ 30,058	$ 29,691
Adjusted EBITDA	9,355	9,415
Operating Segments \| Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	20,275	20,153
Adjusted EBITDA	8,218	8,093
Operating Segments \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	10,374	10,259
Adjusted EBITDA	1,493	1,607
Headquarters/Corporate and Other
Segment Reporting Information [Line Items]
Revenue	767	707
Adjusted EBITDA	(329)	(288)
Headquarters/Corporate and Other \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	12	19
Adjusted EBITDA	(243)	(232)
Eliminations
Segment Reporting Information [Line Items]
Revenue	2,089	2,244
Eliminations \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	(731)	(817)
Adjusted EBITDA	33	24
Eliminations \| Inter-Business Unit Eliminations
Segment Reporting Information [Line Items]
Revenue	(1,358)	(1,427)
Adjusted EBITDA	(26)	3
Residential Connectivity & Platforms \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	17,868	17,869
Adjusted EBITDA	6,852	6,762
Residential Connectivity & Platforms \| Operating Segments \| Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	17,868	17,869
Business Services Connectivity \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	2,407	2,283
Adjusted EBITDA	1,366	1,332
Business Services Connectivity \| Operating Segments \| Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	2,407	2,283
Media \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	6,371	6,152
Adjusted EBITDA	827	880
Media \| Operating Segments \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	6,371	6,152
Studios \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	2,743	2,956
Adjusted EBITDA	244	277
Studios \| Operating Segments \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	2,743	2,956
Theme Parks \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	1,979	1,949
Adjusted EBITDA	632	658
Theme Parks \| Operating Segments \| Content & Experiences
Segment Reporting Information [Line Items]
Revenue	$ 1,979	$ 1,949

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2024	Apr. 15, 2024
Document And Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
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	2024
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001166691
Class A Common Stock, $0.01 par value
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		3,914,181,673
0.000% Notes due 2026
Document And Entity Information [Line Items]
Title of 12(b) Security	0.000% Notes due 2026
Trading Symbol	CMCS26
Security Exchange Name	NASDAQ
0.250% Notes due 2027
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
Document And Entity Information [Line Items]
Title of 12(b) Security	1.500% Notes due 2029
Trading Symbol	CMCS29
Security Exchange Name	NASDAQ
0.250% Notes due 2029
Document And Entity Information [Line Items]
Title of 12(b) Security	0.250% Notes due 2029
Trading Symbol	CMCS29A
Security Exchange Name	NASDAQ
0.750% Notes due 2032
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
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
Document And Entity Information [Line Items]
Title of 12(b) Security	1.250% Notes due 2040
Trading Symbol	CMCS40
Security Exchange Name	NASDAQ
5.50% Notes due 2029
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
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
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		9,444,375

Investments and Variable Interest Entities - Schedule of Investment and Other Income (Loss), Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments [Abstract]
Equity in net income (losses) of investees, net	$ 158	$ 485
Realized and unrealized gains (losses) on equity securities, net	(51)	(6)
Other income (loss), net	191	128
Investment and other income (loss), net	$ 298	$ 607

Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 30,058	$ 29,691
Costs and Expenses:
Programming and production	8,823	9,004
Marketing and promotion	2,018	1,963
Other operating and administrative	9,857	9,301
Depreciation	2,175	2,264
Amortization	1,376	1,513
Total costs and expenses	24,248	24,045
Operating income	5,810	5,646
Interest expense	(1,002)	(1,010)
Investment and other income (loss), net	298	607
Income before income taxes	5,105	5,243
Income tax expense	(1,328)	(1,476)
Net income	3,777	3,767
Less: Net income (loss) attributable to noncontrolling interests	(79)	(67)
Net income attributable to Comcast Corporation	$ 3,857	$ 3,834
Basic earnings (loss) per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.97	$ 0.91
Diluted earnings (loss) per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.97	$ 0.91