Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt before deferred debt issuance costs and original issue discount	$ 1,031	$ 1,035
Less deferred finance costs	(18)	(21)
Total debt, net	$ 1,013	1,014
Revolving Facility [Member]
Debt Instrument [Line Items]
Maturity Date	2020
Revolving Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest Rate	4.50%
CMBS Facility [Member]
Debt Instrument [Line Items]
Debt before deferred debt issuance costs and original issue discount	$ 1,031	1,035
Less deferred finance costs	(18)	(21)
Total debt, net	$ 1,031	$ 1,035
Maturity Date	2020
CMBS Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest Rate	2.75%