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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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