Business Segment Information - Reconciliation of Revenues from Consolidated Hotels to Condensed Combined Consolidated Amounts and Hotel Adjusted EBITDA to Net Income (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 599	$ 659
Hotel Adjusted EBITDA	91	181
Depreciation and amortization expense	(75)	(62)
Corporate general and administrative expense	(16)	(17)
Casualty gain and impairment loss, net	(694)
Other operating expenses	(21)	(20)
Gain on sales of assets, net	62	31
Interest income	1	1
Interest expense	(40)	(32)
Equity in (losses) earnings from investments in affiliates	(1)	5
Loss on foreign currency transactions	(2)
Income tax expense	(10)	(7)
Other gain, net		1
Other items	(3)	(2)
Net (loss) income	(689)	97
Total consolidated hotel revenue [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	580	641
Other [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 19	$ 18