Segment Information - Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ (6,916)	$ (6,610)	$ (22,023)	$ (20,586)
Operating Segments | TV Media
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(4,948)	(5,220)	(15,849)	(16,432)
Operating Segments | Direct-to-Consumer
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(1,226)	(890)	(3,508)	(2,255)
Operating Segments | Filmed Entertainment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(783)	(530)	(2,770)	(1,993)
Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	41	30	104	94
Eliminations | TV Media
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	9	19	33	38
Eliminations | Direct-to-Consumer
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	1	0	2
Eliminations | Filmed Entertainment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	32	10	71	54
Advertising
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(2,337)	(2,386)	(7,746)	(8,094)
Advertising | Operating Segments | TV Media
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(1,973)	(2,039)	(6,668)	(7,230)
Advertising | Operating Segments | Direct-to-Consumer
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(363)	(348)	(1,073)	(857)
Advertising | Operating Segments | Filmed Entertainment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(3)	(2)	(17)	(14)
Affiliate and subscription
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(2,863)	(2,650)	(8,591)	(7,701)
Affiliate and subscription | Operating Segments | TV Media
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(2,000)	(2,108)	(6,156)	(6,303)
Affiliate and subscription | Operating Segments | Direct-to-Consumer
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(863)	(542)	(2,435)	(1,398)
Licensing and other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(1,485)	(1,507)	(4,560)	(4,589)
Licensing and other | Operating Segments | TV Media
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(975)	(1,073)	(3,025)	(2,899)
Licensing and other | Operating Segments | Filmed Entertainment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(549)	(461)	(1,627)	(1,777)
Theatrical
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(231)	(67)	(1,126)	(202)
Theatrical | Operating Segments | Filmed Entertainment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ (231)	$ (67)	$ (1,126)	$ (202)