Income Taxes - Components of (Benefit) Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
U.S. Federal	$ 5	$ 1	$ 16
State	(2)	3	3
Foreign	0	20	11
Total current	3	24	30
Deferred:
U.S. Federal	(1)	(29)	3
Foreign	0	(1)	2
Total deferred	(1)	(30)	5
Total Provision (benefit) for income taxes	$ 2	$ (6)	$ 35