Segment Information - Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue	$ 123,731	$ 121,572	$ 121,427
Programming and production	37,026	36,762	38,213
Marketing and promotion	8,073	7,971	8,506
Other operating and administrative	40,533	39,190	38,263
Depreciation	(8,729)	(8,854)	(8,724)
Amortization	(6,072)	(5,482)	(5,097)
Interest expense	(4,134)	(4,087)	(3,896)
Goodwill and long-lived asset impairments	0	0	(8,583)
Investment and other income (loss), net	(490)	1,252	(861)
Income before income taxes	18,673	20,478	9,284
Operating Segments
Segment Reporting Information [Line Items]
Revenue	129,132	127,128	127,722
Adjusted EBITDA	40,322	39,808	38,414
Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	120,990	118,962	118,957
Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	8,142	8,166	8,765
Headquarters/Corporate and Other
Segment Reporting Information [Line Items]
Revenue	2,982	2,827	2,737
Headquarters/Corporate and Other \| Media, Studios, Theme Parks Segments Headquarters And Other
Segment Reporting Information [Line Items]
Adjusted EBITDA	(831)	(946)	(881)
Headquarters/Corporate and Other \| Corporate And Other, Type
Segment Reporting Information [Line Items]
Adjusted EBITDA	(1,346)	(1,318)	(1,021)
Consolidation, Eliminations
Segment Reporting Information [Line Items]
Revenue	(8,383)	(8,383)	(9,032)
Adjusted EBITDA	(47)	105	(66)
Residential Connectivity & Platforms \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	71,574	71,946	72,386
Programming and production	16,881	18,067	18,500
Other	27,355	26,932	27,775
Adjusted EBITDA	27,338	26,948	26,111
Residential Connectivity & Platforms \| Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	71,401	71,739	72,177
Residential Connectivity & Platforms \| Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	173	207	208
Business Services Connectivity \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	9,701	9,255	8,819
Other	4,201	3,964	3,759
Adjusted EBITDA	5,500	5,291	5,060
Business Services Connectivity \| Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	9,678	9,233	8,798
Business Services Connectivity \| Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	23	22	21
Media \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	28,148	25,355	26,719
Programming and production	18,968	16,921	17,650
Marketing and promotion	1,473	1,389	1,520
Other	4,577	4,091	3,951
Adjusted EBITDA	3,130	2,955	3,598
Media \| Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	23,463	20,734	22,147
Media \| Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	4,685	4,621	4,572
Studios \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	11,092	11,625	12,257
Programming and production	7,257	7,958	8,778
Marketing and promotion	1,483	1,579	1,699
Other	947	818	819
Adjusted EBITDA	1,404	1,269	961
Studios \| Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	7,832	8,308	8,294
Studios \| Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	3,259	3,317	3,963
Theme Parks \| Operating Segments
Segment Reporting Information [Line Items]
Revenue	8,617	8,947	7,541
Other	5,668	5,602	4,858
Adjusted EBITDA	2,949	3,345	2,683
Theme Parks \| Operating Segments \| External Customers
Segment Reporting Information [Line Items]
Revenue	8,615	8,948	7,541
Theme Parks \| Operating Segments \| Intersegment Customers
Segment Reporting Information [Line Items]
Revenue	$ 1	$ (1)	$ 1

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