Income Taxes - Schedule of Composition of Net Deferred Tax Balances (Detail) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Deferred income tax assets	[1]	$ 1	$ 1
Deferred income tax liabilities		(9)	(10)
Net deferred tax liability		$ (8)	$ (9)

[1] Included within other assets in our consolidated balance sheets, net of valuation allowance.