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Investments in Affiliates - Investments in Affiliates (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) hotel room | Dec. 31, 2023 USD ($) hotel room | Dec. 31, 2022 USD ($)
Schedule of Investments [Line Items] |  |  |
Our Investment | $ 166 | $ 126 |
Our Portion of Debt | 240 | 208 |
Total Debt | 896 | 746 |
Distributions received in period | $ 19 | 36 |
Number of hotels | hotel | 81 |  |
Return of investments in affiliates | $ 1 | $ 5 | $ 0
Asia/Pacific JV |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 25.00% | 25.00% |
Our Investment | $ 10 | $ 9 |
Our Portion of Debt | 0 | 0 |
Total Debt | 0 | 0 |
Distributions received in period | $ 0 | $ 0 |
Asia/Pacific JV | India |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 36.00% | 36.00% |
Number of hotels | hotel | 7 | 7 |
Maui JV |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 67.00% | 67.00% |
Our Investment | $ 21 | $ 28 |
Our Portion of Debt | 13 | 16 |
Total Debt | 20 | 23 |
Distributions received in period | $ 1 | $ 8 |
Maui JV | Maui, HI |  |  |
Schedule of Investments [Line Items] |  |  |
Number of vacation ownership project | room | 131 | 131 |
Hyatt Place JV |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 50.00% | 50.00% |
Our Investment | $ (15) | $ (15) |
Our Portion of Debt | 30 | 30 |
Total Debt | 60 | 60 |
Distributions received in period | $ 2 | $ 2 |
Hyatt Place JV | Nashville, TN |  |  |
Schedule of Investments [Line Items] |  |  |
Number of hotels | hotel | 1 | 1 |
Harbor Beach JV |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 49.90% | 49.90% |
Our Investment | $ (48) | $ (45) |
Our Portion of Debt | 78 | 75 |
Total Debt | 156 | 150 |
Distributions received in period | $ 5 | $ 11 |
Harbor Beach JV | Fort Lauderdale, FL |  |  |
Schedule of Investments [Line Items] |  |  |
Number of hotels | hotel | 1 | 1 |
Philadelphia Marriott Downtown JV |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 11.00% | 11.00% |
Our Investment | $ (9) | $ (8) |
Our Portion of Debt | 23 | 23 |
Total Debt | 213 | 213 |
Distributions received in period | $ 1 | 6 |
Return of investments in affiliates |  | $ 5 |
Philadelphia Marriott Downtown JV | Philadelphia, PA |  |  |
Schedule of Investments [Line Items] |  |  |
Number of hotels | hotel | 1 | 1 |
Noble JV |  |  |
Schedule of Investments [Line Items] |  |  |
Our Investment | $ 170 | $ 121 |
Our Portion of Debt | 96 | 64 |
Total Debt | 447 | 300 |
Distributions received in period | $ 10 | $ 7 |
Noble JV | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 21.15% | 21.15% |
Noble JV | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Ownership Interests | 49.00% | 49.00% |
Fifth Wall Ventures |  |  |
Schedule of Investments [Line Items] |  |  |
Our Investment | $ 28 | $ 28 |
Our Portion of Debt | 0 | 0 |
Total Debt | 0 | 0 |
Distributions received in period | 0 | 2 |
Other investments |  |  |
Schedule of Investments [Line Items] |  |  |
Our Investment | 9 | 8 |
Our Portion of Debt | 0 | 0 |
Total Debt | 0 | 0 |
Distributions received in period | $ 0 | $ 0 |

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