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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)

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