Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt before deferred debt issuance costs and original issue discount	$ 1,016	$ 1,035
Less deferred finance costs	(14)	(21)
Total debt, net	$ 1,002	1,014
Revolving Facility [Member]
Debt Instrument [Line Items]
Maturity Date	2020-05
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	$ 1,016	1,035
Less deferred finance costs	(14)	(21)
Total debt, net	$ 1,016	$ 1,035
Maturity Date	2020-06
CMBS Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Interest Rate	2.75%