Segment Information - Assets (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total Assets	$ 56,961	$ 58,620
Discontinued Operations	1,437	1,560
Operating Segments | TV Media
Segment Reporting Information [Line Items]
Total Assets	38,019	38,491
Operating Segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Total Assets	6,334	5,545
Operating Segments | Filmed Entertainment
Segment Reporting Information [Line Items]
Total Assets	7,939	7,472
Corporate/Eliminations
Segment Reporting Information [Line Items]
Total Assets	$ 3,232	$ 5,552