Consolidated Variable Interest Entities and Investments in Affiliates - Schedule of Assets and Liabilities Included in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Property and equipment, net	$ 7,999	$ 8,311	[1]
Cash and cash equivalents	421	364
Restricted cash	17	15
Accounts receivable, net	180	125
Prepaid expenses	46	48
Debt	2,947	2,961
Accounts payable and accrued expenses	181	215
Due to hotel manager	107	141
Other liabilities	285	232
Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Property and equipment, net	224	215
Cash and cash equivalents	9	14
Restricted cash	3	7
Accounts receivable, net	4	2
Prepaid expenses	1	2
Debt	207	207
Accounts payable and accrued expenses	7	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.