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DEBT AND EQUITY SECURITIES - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Total | $ 1,875 | $ 2,409
HTM debt securities | 296 | 276
Preferred Equity Investment | Hyatt Regency Orlando |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
HTM debt securities | 196 | 194
Level One—Quoted Prices in Active Markets for Identical Assets | Interest-bearing money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 465 | 638
Level One—Quoted Prices in Active Markets for Identical Assets | Mutual funds and exchange-traded funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 571 | 555
Level One—Quoted Prices in Active Markets for Identical Assets | Ordinary and common shares |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 12 | 164
Level Two—Significant Other Observable Inputs | Time deposits |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 107 | 404
Level Two—Significant Other Observable Inputs | U.S. government obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 314 | 307
Level Two—Significant Other Observable Inputs | U.S. government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 31 | 21
Level Two—Significant Other Observable Inputs | Corporate debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 304 | 249
Level Two—Significant Other Observable Inputs | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 30 | 29
Level Two—Significant Other Observable Inputs | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 37 | 38
Level Two—Significant Other Observable Inputs | Municipal and provincial notes and bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 4 | 4
Cash and cash equivalents |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Total | 498 | 658
Cash and cash equivalents | Level One—Quoted Prices in Active Markets for Identical Assets | Interest-bearing money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 465 | 638
Cash and cash equivalents | Level One—Quoted Prices in Active Markets for Identical Assets | Mutual funds and exchange-traded funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Cash and cash equivalents | Level One—Quoted Prices in Active Markets for Identical Assets | Ordinary and common shares |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | Time deposits |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 26 | 20
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | U.S. government obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 3 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | U.S. government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | Corporate debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 4 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Cash and cash equivalents | Level Two—Significant Other Observable Inputs | Municipal and provincial notes and bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Short-term investments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Total | 66 | 372
Short-term investments | Level One—Quoted Prices in Active Markets for Identical Assets | Interest-bearing money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Short-term investments | Level One—Quoted Prices in Active Markets for Identical Assets | Mutual funds and exchange-traded funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Short-term investments | Level One—Quoted Prices in Active Markets for Identical Assets | Ordinary and common shares |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Short-term investments | Level Two—Significant Other Observable Inputs | Time deposits |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 8 | 355
Short-term investments | Level Two—Significant Other Observable Inputs | U.S. government obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 15 | 5
Short-term investments | Level Two—Significant Other Observable Inputs | U.S. government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Short-term investments | Level Two—Significant Other Observable Inputs | Corporate debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 43 | 12
Short-term investments | Level Two—Significant Other Observable Inputs | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Short-term investments | Level Two—Significant Other Observable Inputs | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Short-term investments | Level Two—Significant Other Observable Inputs | Municipal and provincial notes and bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 0 | 0
Other assets |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Total | 1,311 | 1,379
Other assets | Level One—Quoted Prices in Active Markets for Identical Assets | Interest-bearing money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 0 | 0
Other assets | Level One—Quoted Prices in Active Markets for Identical Assets | Mutual funds and exchange-traded funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 571 | 555
Other assets | Level One—Quoted Prices in Active Markets for Identical Assets | Ordinary and common shares |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Cash and cash equivalents | 12 | 164
Other assets | Level Two—Significant Other Observable Inputs | Time deposits |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 73 | 29
Other assets | Level Two—Significant Other Observable Inputs | U.S. government obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 296 | 302
Other assets | Level Two—Significant Other Observable Inputs | U.S. government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 31 | 21
Other assets | Level Two—Significant Other Observable Inputs | Corporate debt securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 257 | 237
Other assets | Level Two—Significant Other Observable Inputs | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 30 | 29
Other assets | Level Two—Significant Other Observable Inputs | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | 37 | 38
Other assets | Level Two—Significant Other Observable Inputs | Municipal and provincial notes and bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Amortized cost | $ 4 | $ 4

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