Business Segment Information - Reconciliation of Revenues from Consolidated Hotels to Condensed Combined Consolidated Amounts and Hotel Adjusted EBITDA to Net (Loss) Income (Detail) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 98			$ 672			$ 739	$ 2,034
Hotel Adjusted EBITDA	(76)			183			(93)	573
Depreciation and amortization expense	(75)			(61)			(225)	(184)
Corporate general and administrative expense	(13)			(14)			(42)	(47)
Corporate general and administrative expense excluding serverance							(40)	(46)
Impairment and casualty loss, net	(2)			(8)			(696)	(8)
Acquisition costs	(9)			(59)			(10)	(65)
Other operating expenses	(6)			(23)			(31)	(61)
(Loss) gain on sales of assets, net	(1)			1			62	20
Interest income				2			2	5
Interest expense	(59)			(33)			(149)	(98)
Equity in (losses) earnings from investments in affiliates	(7)			3			(16)	18
Income tax expense	(1)						(14)	(12)
Other loss, net	(3)			(1)			(6)	(1)
Severance expense	(24)						(26)	(2)
Other items	(3)			(3)			(9)	(8)
Net (loss) income	(276)	$ (261)	$ (689)	9	$ 84	$ 97	(1,226)	190
Total consolidated hotel revenue [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	95			650			714	1,975
Other [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 3			$ 22			$ 25	$ 59