Income Taxes - Components of (Benefit) Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
U.S. Federal	$ 1	$ 5	$ 1
State	1	(2)	3
Foreign	0	0	20
Total current	2	3	24
Deferred:
U.S. Federal	0	(1)	(29)
State	(2)	0	0
Foreign	0	0	(1)
Total deferred	(2)	(1)	(30)
Total provision (benefit) for income taxes	$ 0	$ 2	$ (6)