Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2017	[1]	Dec. 31, 2016	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Land	$ 3,364		$ 3,397
Buildings and leasehold improvements	5,911		6,015
Furniture and equipment	966		922
Construction-in-progress	117		79
Property and equipment, gross	10,358		10,413
Accumulated depreciation and amortization	(2,047)		(1,872)
Property and equipment, net	$ 8,311		$ 8,541	$ 8,676

[1] Excludes $31 million of property and equipment, net classified as held for sale as of December 31, 2017.