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Equity Method Investment, Seller Financing, Fair Value Disclosure

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Equity Method Investment, Seller Financing, Net

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Equity Method Investment, Seller Financing, Term

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Number Of Equity Method Investments With Other Than Temporary Impairments

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Amount of investment in equity security without readily determinable fair value.

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Amount of impairment loss on investment in equity security without readily determinable fair value.

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The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Number of shares of investment owned.

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The number of real estate properties owned as of the balance sheet date.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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DEBT AND EQUITY SECURITIES - Narrative (Details) $ in Millions		12 Months Ended
	Feb. 28, 2024 shares	Dec. 31, 2024 USD ($) investment	Dec. 31, 2023 USD ($) unit	Dec. 31, 2022 USD ($)	Feb. 27, 2024
Schedule of Equity Method Investments
Equity method investments		$ 189	$ 211
Other long-term liabilities		$ 1,810	1,351
Number of unconsolidated hospitality ventures \| investment		2
Equity method investment, seller financing, net		$ 10
Equity method investment, seller financing, term		2 years
HTM debt securities		$ 267	40
Held-to-maturity securities, fair value		270	41
Equity securities without a readily determinable fair value		12	16
Impairment of an equity security without a readily determinable fair value (Note 4)		5	0	$ 0
Held For Operating Programs
Schedule of Equity Method Investments
Debt securities, available-for-sale		473	330
Equity securities		17	15
Convertible Debt Securities
Schedule of Equity Method Investments
Payment to acquire AFS securities			30
Hyatt of Baja, S. de. R.L. de C.V.
Schedule of Equity Method Investments
Financing receivable		28
Foreign Currency Adjustments
Schedule of Equity Method Investments
Amounts reclassified from accumulated other comprehensive loss		(1)	$ 0
Third Party Entity
Schedule of Equity Method Investments
Number of real estate properties \| unit			3
World Of Hyatt \| Held For Operating Programs \| Limited Partnership Affiliated with Executive Chairman
Schedule of Equity Method Investments
HTM debt securities		25	$ 25
Unconsolidated Hospitality Venture \| IPO
Schedule of Equity Method Investments
Number of shares issued (in shares) \| shares	50,000,000
Guarantee Type, Other
Schedule of Equity Method Investments
Maximum potential future payments		142
Significant unobservable inputs (Level Three) \| Convertible Debt Securities
Schedule of Equity Method Investments
Debt securities, available-for-sale		42	39
Unlimited Vacation Club
Schedule of Equity Method Investments
Equity method investments		20
Equity method investment, gain (loss) on dilution		79
Unlimited Vacation Club \| Significant unobservable inputs (Level Three)
Schedule of Equity Method Investments
Guarantor obligations, liability, current carrying value		86
Unlimited Vacation Club \| Significant unobservable inputs (Level Three) \| Partner's Investment Guarantee
Schedule of Equity Method Investments
Guarantor obligations, liability, current carrying value		25
Maximum potential future payments		70
Unlimited Vacation Club \| Significant unobservable inputs (Level Three) \| Tax Obligation Guarantee
Schedule of Equity Method Investments
Guarantor obligations, liability, current carrying value		61
Unconsolidated Hospitality Venture
Schedule of Equity Method Investments
Equity method investments		354
Impairment charges on equity method investments		15
Ownership interest	38.80%				50.00%
Investment owned, balance, shares \| shares	86,251,192
Equity method investment, realized gain on disposal		12
Equity method investment, seller financing, fair value disclosure		8
Equity method investment, contingent consideration, asset		13
Contingent consideration receivable at fair value		5
Unconsolidated Hospitality Venture \| Significant unobservable inputs (Level Three) \| Tax Obligation Guarantee
Schedule of Equity Method Investments
Maximum potential future payments		72
Third Party Entity
Schedule of Equity Method Investments
Equity method investments			$ 32
Ownership interest			50.00%
Third Party Entity \| Unconsolidated Hospitality Venture
Schedule of Equity Method Investments
Ownership interest			100.00%
Equity Method Investment One
Schedule of Equity Method Investments
Equity method investment, net sales proceeds		16
Equity Method Investment One \| Owned and leased
Schedule of Equity Method Investments
Equity method investment, net sales proceeds				23
Equity method investment, realized gain on disposal				4
Equity Method Investment One \| Foreign Currency Adjustments \| Owned and leased
Schedule of Equity Method Investments
Amounts reclassified from accumulated other comprehensive loss				5
Equity Method Investment Two \| Owned and leased
Schedule of Equity Method Investments
Equity method investment, net sales proceeds				16
Equity method investment, realized gain on disposal				$ 15
Hyatt of Baja, S. de. R.L. de C.V.
Schedule of Equity Method Investments
Equity method investments		$ 0	$ 74
Ownership interest		0.00%
Equity method investment, net sales proceeds		$ 21
Equity method investment, realized gain on disposal		8
Hyatt of Baja, S. de. R.L. de C.V. \| AOCI, Equity Method Investment, Parent
Schedule of Equity Method Investments
Amounts reclassified from accumulated other comprehensive loss		2
Disposal Group, Disposed of by Sale \| Unlimited Vacation Club
Schedule of Equity Method Investments
Proceeds from divestiture of businesses		41
Cash divested from deconsolidation		39
Gains on sales of real estate		$ 231
Variable Interest Entity, Primary Beneficiary
Schedule of Equity Method Investments
Variable interest entity, qualitative or quantitative information, ownership percentage		50.00%
Other long-term liabilities		$ 161
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments
Other long-term liabilities		$ 68