Income Taxes - Components of Income Tax Benefit (Provision) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax (provision) benefit:
Federal	$ 0	$ 94	$ 94
State and local	(1)	3	(39)
International	(3)	(5)	(13)
Deferred tax (provision) benefit:
Federal	(130)	2,766	(1,343)
State and local	16	344	(130)
Income tax provision	$ (118)	$ 3,202	$ (1,431)