DEBT - Schedule of Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument
Finance lease obligations	$ 22	$ 4
Unamortized discount and deferred financing fees	39	27
Disposal Group, Held-for-Sale, Not Discontinued Operations \| Playa Hotels Portfolio
Debt Instrument
Finance lease obligations, current	1
Finance lease obligations, noncurrent	18
Quoted prices in active markets for identical assets (Level One)
Debt Instrument
Debt	0	0
Significant other observable inputs (Level Two)
Debt Instrument
Debt	4,303	3,695
Significant unobservable inputs (Level Three)
Debt Instrument
Debt	1,848	118
Carrying value
Debt Instrument
Debt	6,070	3,805
Fair value
Debt Instrument
Debt	$ 6,151	$ 3,813

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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