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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 123,731	$ 121,572	$ 121,427
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	129,132	127,128	127,722
Operating Segments | Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	71,574	71,946	72,386
Operating Segments | Residential Connectivity & Platforms | Domestic broadband
Disaggregation of Revenue [Line Items]
Revenue	26,228	25,489	24,469
Operating Segments | Residential Connectivity & Platforms | Domestic wireless
Disaggregation of Revenue [Line Items]
Revenue	4,273	3,664	3,071
Operating Segments | Residential Connectivity & Platforms | International connectivity
Disaggregation of Revenue [Line Items]
Revenue	4,854	4,207	3,426
Operating Segments | Residential Connectivity & Platforms | Total residential connectivity
Disaggregation of Revenue [Line Items]
Revenue	35,355	33,359	30,966
Operating Segments | Residential Connectivity & Platforms | Video
Disaggregation of Revenue [Line Items]
Revenue	26,872	28,797	30,496
Operating Segments | Residential Connectivity & Platforms | Advertising
Disaggregation of Revenue [Line Items]
Revenue	4,089	3,969	4,546
Operating Segments | Residential Connectivity & Platforms | Other
Disaggregation of Revenue [Line Items]
Revenue	5,259	5,820	6,378
Operating Segments | Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	9,701	9,255	8,819
Operating Segments | Media
Disaggregation of Revenue [Line Items]
Revenue	28,148	25,355	26,719
Operating Segments | Media | Other
Disaggregation of Revenue [Line Items]
Revenue	2,031	1,983	2,105
Operating Segments | Media | Domestic advertising
Disaggregation of Revenue [Line Items]
Revenue	10,008	8,600	10,360
Operating Segments | Media | Domestic distribution
Disaggregation of Revenue [Line Items]
Revenue	11,826	10,663	10,525
Operating Segments | Media | International networks
Disaggregation of Revenue [Line Items]
Revenue	4,282	4,109	3,729
Operating Segments | Studios
Disaggregation of Revenue [Line Items]
Revenue	11,092	11,625	12,257
Operating Segments | Studios | Other
Disaggregation of Revenue [Line Items]
Revenue	1,335	1,315	1,302
Operating Segments | Studios | Content licensing
Disaggregation of Revenue [Line Items]
Revenue	8,063	8,231	9,348
Operating Segments | Studios | Theatrical
Disaggregation of Revenue [Line Items]
Revenue	1,693	2,079	1,607
Operating Segments | Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	8,617	8,947	7,541
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	2,982	2,827	2,737
Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Revenue	$ (8,383)	$ (8,383)	$ (9,032)

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