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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 11, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023
Loss Contingencies |  |  |  |  |  |  |
Guarantees, fair value disclosure | $ 185 |  |  | $ 213 |  |  |
Self insurance reserve, current | 48 |  |  | 46 |  |  |
Self-insurance liabilities, noncurrent | 84 |  |  | 83 |  |  |
Surety bonds | 320 |  |  |  |  |  |
Loss contingency, estimate of possible loss | 31 |  |  |  |  |  |
Renovation Project |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Other commitment | 60 |  |  |  |  |  |
Letter of Credit |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Maximum borrowing capacity | 109 |  |  |  |  |  |
Reducing capacity under revolving credit facility | $ 3 |  |  |  |  |  |
Various US |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Multiemployer plans, collective-bargaining arrangement, percentage of participants | 21.00% |  |  |  |  |  |
Contingent Consideration |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Contingent consideration | $ 209 |  | $ 209 | 217 | $ 104 | $ 111 | $ 115
Bahia Principe |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Outstanding liability balance | 356 |  |  |  |  |  |
Playa Hotels Acquisition |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Outstanding liability balance |  | $ 7 |  |  |  |  |
Playa Hotels Acquisition | Minimum Purchase Of Liquified Natural Gas |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Recorded unconditional purchase obligation | 7 |  |  |  |  |  |
Guarantee Type, Other |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Maximum potential future payments | 141 |  |  | 142 |  |  |
Financial Guarantee |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Maximum potential future payments | 56 |  |  | 67 |  |  |
Other Long-term liabilities | Contingent Consideration |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Contingent consideration | 208 |  |  | 214 |  |  |
Other Current Liabilities | Contingent Consideration |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Contingent consideration | 1 |  |  | 3 |  |  |
Performance Guarantee |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Maximum potential future payments | 155 |  |  |  |  |  |
Guarantor obligations, liability, current carrying value | 113 |  |  | 113 |  |  |
Performance Guarantee | Other Long-term liabilities |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Guarantor obligations, liability, current carrying value | 105 |  |  | 104 |  |  |
Performance Guarantee | Accrued Expenses and Other Current Liabilities |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Guarantor obligations, liability, current carrying value | 8 |  |  | 9 |  |  |
Performance Test Clause Guarantee |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Guarantor obligations, liability, current carrying value | 0 |  |  | $ 0 |  |  |
Various Business Ventures |  |  |  |  |  |  |
Loss Contingencies |  |  |  |  |  |  |
Commitment to loan or investment | $ 672 |  |  |  |  |  |

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