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Dispositions (Detail) $ in Millions	1 Months Ended		12 Months Ended
	Apr. 30, 2022 USD ($)	Feb. 28, 2022 USD ($)	Dec. 31, 2024 USD ($) hotel	Dec. 31, 2023 USD ($) hotel	Dec. 31, 2022 USD ($) hotel
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]
Number of hotels sold | hotel			0	1	4
Gain on disposition of assets				$ 69	$ 18
Notes Receivable One
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]
Notes issued				$ 72
Basis spread on variable rate				4.25%
Increase in notes receivables			$ 7
Sheraton Boston Hotel
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]
Notes receivable from sale of property		$ 163			163
Sheraton New York Times Square Hotel
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]
Notes receivable from sale of property	$ 250				$ 250

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