Segment Information - Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financial Data by Business Segment
Revenue	$ 121,572	$ 121,427	$ 116,385
Adjusted EBITDA	37,633	36,459	34,708
Operating Segments \| Connectivity & Platforms
Financial Data by Business Segment
Revenue	81,201	81,205	80,750
Adjusted EBITDA	32,239	31,171	29,871
Operating Segments \| Content & Experiences
Financial Data by Business Segment
Revenue	43,191	43,151	39,574
Adjusted EBITDA	6,700	6,360	6,234
Eliminations
Financial Data by Business Segment
Revenue	8,383	9,032	9,831
Eliminations \| Content & Experiences
Financial Data by Business Segment
Revenue	(2,800)	(3,442)	(3,048)
Adjusted EBITDA	77	(2)	(205)
Eliminations \| Inter-Business Unit Eliminations
Financial Data by Business Segment
Revenue	(5,583)	(5,590)	(6,783)
Adjusted EBITDA	28	(64)	(65)
Headquarters/Corporate and Other
Financial Data by Business Segment
Revenue	2,763	2,662	2,844
Adjusted EBITDA	(1,335)	(1,008)	(1,331)
Headquarters/Corporate and Other \| Content & Experiences
Financial Data by Business Segment
Revenue	64	75	87
Adjusted EBITDA	(946)	(881)	(840)
Residential Connectivity & Platforms \| Operating Segments \| Connectivity & Platforms
Financial Data by Business Segment
Revenue	71,946	72,386	72,694
Adjusted EBITDA	26,948	26,111	25,188
Residential Connectivity & Platforms \| Eliminations \| Connectivity & Platforms
Financial Data by Business Segment
Revenue	207	208	219
Business Services Connectivity \| Operating Segments \| Connectivity & Platforms
Financial Data by Business Segment
Revenue	9,255	8,819	8,056
Adjusted EBITDA	5,291	5,060	4,682
Business Services Connectivity \| Eliminations \| Connectivity & Platforms
Financial Data by Business Segment
Revenue	22	21	25
Media \| Operating Segments \| Content & Experiences
Financial Data by Business Segment
Revenue	25,355	26,719	27,406
Adjusted EBITDA	2,955	3,598	5,133
Media \| Eliminations \| Content & Experiences
Financial Data by Business Segment
Revenue	4,621	4,572	5,776
Studios \| Operating Segments \| Content & Experiences
Financial Data by Business Segment
Revenue	11,625	12,257	10,077
Adjusted EBITDA	1,269	961	879
Studios \| Eliminations \| Content & Experiences
Financial Data by Business Segment
Revenue	3,317	3,963	3,548
Theme Parks \| Operating Segments \| Content & Experiences
Financial Data by Business Segment
Revenue	8,947	7,541	5,051
Adjusted EBITDA	3,345	2,683	1,267
Theme Parks \| Eliminations \| Content & Experiences
Financial Data by Business Segment
Revenue	$ (1)	$ 1	$ 2