Other Assets - Schedule of Other Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Other Assets [Abstract]
Lenders escrow	$ 15
Prepaid expenses	9	$ 12
Intangible assets	5	5
Assets held for sale	3	9
Other assets, primarily hotel supplies	19	6
Total other assets	$ 51	$ 32