Consolidated Variable Interest Entities ("VIEs") and Investments in Affiliates - Schedule of Assets and Liabilities Included in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Property and equipment, net	$ 9,255	$ 9,594	[1]
Cash and cash equivalents	1,134	346
Restricted cash	35	40
Accounts receivable, net	36	180
Prepaid expenses	43	83
Debt	5,121	3,871
Accounts payable and accrued expenses	168	217
Due to hotel manager	102	159
Other liabilities	124	282
Consolidated VIEs [Member]
Variable Interest Entity [Line Items]
Property and equipment, net	218	221
Cash and cash equivalents	11	13
Restricted cash	2	1
Accounts receivable, net	2	5
Prepaid expenses	1	2
Debt	207	207
Accounts payable and accrued expenses	8	8
Due to hotel manager		2
Other liabilities	$ 2	$ 2

[1] Excludes $62 million of property and equipment, net, classified as held for sale as of December 31, 2019.