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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 31,198	$ 32,070	$ 91,397	$ 91,817
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	32,483	33,637	95,375	95,803
Operating Segments | Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,601	17,866	53,057	53,558
Operating Segments | Residential Connectivity & Platforms | Residential Connectivity
Disaggregation of Revenue [Line Items]
Revenue	8,954	8,644	26,712	25,599
Operating Segments | Residential Connectivity & Platforms | Domestic broadband
Disaggregation of Revenue [Line Items]
Revenue	6,433	6,400	19,521	19,276
Operating Segments | Residential Connectivity & Platforms | Domestic wireless
Disaggregation of Revenue [Line Items]
Revenue	1,246	1,093	3,565	3,084
Operating Segments | Residential Connectivity & Platforms | International connectivity
Disaggregation of Revenue [Line Items]
Revenue	1,275	1,150	3,626	3,240
Operating Segments | Residential Connectivity & Platforms | Video
Disaggregation of Revenue [Line Items]
Revenue	6,591	6,938	20,031	21,055
Operating Segments | Residential Connectivity & Platforms | Advertising
Disaggregation of Revenue [Line Items]
Revenue	864	987	2,680	2,931
Operating Segments | Residential Connectivity & Platforms | Other
Disaggregation of Revenue [Line Items]
Revenue	1,192	1,298	3,635	3,973
Operating Segments | Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	2,576	2,425	7,647	7,253
Operating Segments | Media
Disaggregation of Revenue [Line Items]
Revenue	6,589	8,231	19,470	20,926
Operating Segments | Media | Other
Disaggregation of Revenue [Line Items]
Revenue	532	542	1,516	1,429
Operating Segments | Media | Domestic advertising
Disaggregation of Revenue [Line Items]
Revenue	1,964	3,347	5,698	7,363
Operating Segments | Media | Domestic distribution
Disaggregation of Revenue [Line Items]
Revenue	2,841	3,272	8,575	8,942
Operating Segments | Media | International networks
Disaggregation of Revenue [Line Items]
Revenue	1,252	1,070	3,681	3,193
Operating Segments | Studios
Disaggregation of Revenue [Line Items]
Revenue	3,000	2,826	8,258	7,822
Operating Segments | Studios | Other
Disaggregation of Revenue [Line Items]
Revenue	326	350	1,035	964
Operating Segments | Studios | Content licensing
Disaggregation of Revenue [Line Items]
Revenue	2,035	1,865	6,014	5,680
Operating Segments | Studios | Theatrical
Disaggregation of Revenue [Line Items]
Revenue	639	611	1,209	1,178
Operating Segments | Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	2,717	2,289	6,943	6,243
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	752	686	2,221	2,181
Eliminations
Disaggregation of Revenue [Line Items]
Revenue	$ (2,036)	$ (2,253)	$ (6,198)	$ (6,167)

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