Consolidated Variable Interest Entities and Investments in Affiliates - Schedule of Assets and Liabilities Included in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Property and equipment, net	$ 8,051	$ 8,311	[1]
Cash and cash equivalents	172	364
Restricted cash	108	15
Accounts receivable, net	138	125
Prepaid expenses	54	48
Debt	2,946	2,961
Accounts payable and accrued expenses	172	215
Due to hotel manager	108	141
Other liabilities	211	232
Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Property and equipment, net	222	215
Cash and cash equivalents	9	14
Restricted cash	5	7
Accounts receivable, net	2	2
Prepaid expenses	1	2
Debt	207	207
Accounts payable and accrued expenses	8	8
Due to hotel manager	1	1
Other liabilities	$ 1	$ 1

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