Business Segment Information - Reconciliation of Revenues from Consolidated Hotels to Condensed Combined Consolidated Amounts and Net Loss to Hotel Adjusted EBITDA (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 165	$ 599
Net loss	(191)	(689)
Depreciation and amortization expense	74	75
Corporate general and administrative expense	18	14
Impairment loss and casualty gain, net		694
Other operating expenses	7	21
Gain on sales of assets, net		(62)
Interest income		(1)
Interest expense	63	40
Equity in losses from investments in affiliates	4	1
Income tax expense	1	10
Severance expense		2
Other items	(4)	5
Hotel Adjusted EBITDA	(36)	91
Total consolidated hotel revenue [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	157	580
Other [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues	$ 8	$ 19