Income Taxes - Schedule of Provision for (Benefit from) Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ (46)	$ (1)	$ (38)
State	6	3	(5)
Total, Current	(40)	2	(43)
Deferred:
Federal	161	(162)	179
State	10	(25)	24
Total, Deferred	171	(187)	203
Total provision for (benefit from) income taxes for income (loss)	$ 131	$ (185)	$ 160