Income Taxes - Schedule of Composition of Net Deferred Tax Balances (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Deferred income tax assets	[1]	$ 8	$ 3
Deferred income tax liabilities		(50)	(42)
Net deferred tax liability		$ (42)	$ (39)

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