Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 30,313	$ 29,688	$ 60,199	$ 59,746
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue	31,611	30,798	62,892	62,166
Operating Segments \| Residential Connectivity & Platforms
Disaggregation of Revenue [Line Items]
Revenue	17,814	17,824	35,457	35,692
Operating Segments \| Residential Connectivity & Platforms \| Residential Connectivity
Disaggregation of Revenue [Line Items]
Revenue	8,945	8,505	17,758	16,956
Operating Segments \| Residential Connectivity & Platforms \| Domestic broadband
Disaggregation of Revenue [Line Items]
Revenue	6,530	6,429	13,088	12,875
Operating Segments \| Residential Connectivity & Platforms \| Domestic wireless
Disaggregation of Revenue [Line Items]
Revenue	1,195	1,019	2,318	1,991
Operating Segments \| Residential Connectivity & Platforms \| International connectivity
Disaggregation of Revenue [Line Items]
Revenue	1,219	1,056	2,351	2,090
Operating Segments \| Residential Connectivity & Platforms \| Video
Disaggregation of Revenue [Line Items]
Revenue	6,722	7,013	13,440	14,117
Operating Segments \| Residential Connectivity & Platforms \| Advertising
Disaggregation of Revenue [Line Items]
Revenue	935	993	1,816	1,944
Operating Segments \| Residential Connectivity & Platforms \| Other
Disaggregation of Revenue [Line Items]
Revenue	1,213	1,313	2,443	2,675
Operating Segments \| Business Services Connectivity
Disaggregation of Revenue [Line Items]
Revenue	2,575	2,421	5,071	4,829
Operating Segments \| Media
Disaggregation of Revenue [Line Items]
Revenue	6,440	6,324	12,880	12,695
Operating Segments \| Media \| Other
Disaggregation of Revenue [Line Items]
Revenue	514	467	983	887
Operating Segments \| Media \| Domestic advertising
Disaggregation of Revenue [Line Items]
Revenue	1,848	1,991	3,734	4,016
Operating Segments \| Media \| Domestic distribution
Disaggregation of Revenue [Line Items]
Revenue	2,812	2,764	5,734	5,670
Operating Segments \| Media \| International networks
Disaggregation of Revenue [Line Items]
Revenue	1,266	1,102	2,429	2,123
Operating Segments \| Studios
Disaggregation of Revenue [Line Items]
Revenue	2,432	2,253	5,259	4,996
Operating Segments \| Studios \| Other
Disaggregation of Revenue [Line Items]
Revenue	343	302	709	614
Operating Segments \| Studios \| Content licensing
Disaggregation of Revenue [Line Items]
Revenue	1,805	1,714	3,979	3,815
Operating Segments \| Studios \| Theatrical
Disaggregation of Revenue [Line Items]
Revenue	284	237	570	567
Operating Segments \| Theme Parks
Disaggregation of Revenue [Line Items]
Revenue	2,349	1,975	4,226	3,954
Headquarters/Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	717	715	1,469	1,494
Eliminations
Disaggregation of Revenue [Line Items]
Revenue	$ (2,015)	$ (1,825)	$ (4,162)	$ (3,914)