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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 29,887	$ 30,058
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	31,281	31,368
Operating Segments | Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,642	17,868
Operating Segments | Residential Connectivity & Platforms | Residential Connectivity
Disaggregation of Revenue [Line Items]
Revenue	8,813	8,451
Operating Segments | Residential Connectivity & Platforms | Domestic broadband
Disaggregation of Revenue [Line Items]
Revenue	6,558	6,446
Operating Segments | Residential Connectivity & Platforms | Domestic wireless
Disaggregation of Revenue [Line Items]
Revenue	1,123	972
Operating Segments | Residential Connectivity & Platforms | International connectivity
Disaggregation of Revenue [Line Items]
Revenue	1,132	1,033
Operating Segments | Residential Connectivity & Platforms | Video
Disaggregation of Revenue [Line Items]
Revenue	6,718	7,104
Operating Segments | Residential Connectivity & Platforms | Advertising
Disaggregation of Revenue [Line Items]
Revenue	881	951
Operating Segments | Residential Connectivity & Platforms | Other
Disaggregation of Revenue [Line Items]
Revenue	1,230	1,362
Operating Segments | Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	2,496	2,407
Operating Segments | Media
Disaggregation of Revenue [Line Items]
Revenue	6,440	6,371
Operating Segments | Media | Other
Disaggregation of Revenue [Line Items]
Revenue	470	420
Operating Segments | Media | Domestic advertising
Disaggregation of Revenue [Line Items]
Revenue	1,886	2,025
Operating Segments | Media | Domestic distribution
Disaggregation of Revenue [Line Items]
Revenue	2,922	2,906
Operating Segments | Media | International networks
Disaggregation of Revenue [Line Items]
Revenue	1,162	1,021
Operating Segments | Studios
Disaggregation of Revenue [Line Items]
Revenue	2,826	2,743
Operating Segments | Studios | Other
Disaggregation of Revenue [Line Items]
Revenue	366	312
Operating Segments | Studios | Content licensing
Disaggregation of Revenue [Line Items]
Revenue	2,174	2,101
Operating Segments | Studios | Theatrical
Disaggregation of Revenue [Line Items]
Revenue	286	330
Operating Segments | Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	1,876	1,979
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	752	779
Eliminations
Disaggregation of Revenue [Line Items]
Revenue	$ (2,146)	$ (2,089)

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