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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 32,070	$ 30,115	$ 91,817	$ 90,319
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	33,637	31,236	95,803	94,296
Operating Segments | Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,866	17,951	53,558	53,888
Operating Segments | Residential Connectivity & Platforms | Residential Connectivity
Disaggregation of Revenue [Line Items]
Revenue	8,869	8,393	26,284	24,739
Operating Segments | Residential Connectivity & Platforms | Domestic broadband
Disaggregation of Revenue [Line Items]
Revenue	6,539	6,366	19,700	19,086
Operating Segments | Residential Connectivity & Platforms | Domestic wireless
Disaggregation of Revenue [Line Items]
Revenue	1,093	917	3,084	2,644
Operating Segments | Residential Connectivity & Platforms | International connectivity
Disaggregation of Revenue [Line Items]
Revenue	1,236	1,109	3,500	3,009
Operating Segments | Residential Connectivity & Platforms | Video
Disaggregation of Revenue [Line Items]
Revenue	6,713	7,154	20,370	21,895
Operating Segments | Residential Connectivity & Platforms | Advertising
Disaggregation of Revenue [Line Items]
Revenue	987	960	2,931	2,860
Operating Segments | Residential Connectivity & Platforms | Other
Disaggregation of Revenue [Line Items]
Revenue	1,298	1,444	3,973	4,394
Operating Segments | Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	2,425	2,320	7,253	6,894
Operating Segments | Media
Disaggregation of Revenue [Line Items]
Revenue	8,231	6,029	20,926	18,376
Operating Segments | Media | Other
Disaggregation of Revenue [Line Items]
Revenue	542	506	1,429	1,433
Operating Segments | Media | Domestic advertising
Disaggregation of Revenue [Line Items]
Revenue	3,347	1,913	7,363	5,965
Operating Segments | Media | Domestic distribution
Disaggregation of Revenue [Line Items]
Revenue	3,272	2,591	8,942	7,916
Operating Segments | Media | International networks
Disaggregation of Revenue [Line Items]
Revenue	1,070	1,019	3,193	3,062
Operating Segments | Studios
Disaggregation of Revenue [Line Items]
Revenue	2,826	2,518	7,822	8,561
Operating Segments | Studios | Other
Disaggregation of Revenue [Line Items]
Revenue	350	324	964	970
Operating Segments | Studios | Content licensing
Disaggregation of Revenue [Line Items]
Revenue	1,865	1,691	5,680	5,856
Operating Segments | Studios | Theatrical
Disaggregation of Revenue [Line Items]
Revenue	611	504	1,178	1,735
Operating Segments | Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	2,289	2,418	6,243	6,576
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	686	656	2,181	2,048
Eliminations
Disaggregation of Revenue [Line Items]
Revenue	$ (2,253)	$ (1,777)	$ (6,167)	$ (6,025)

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