RELATED-PARTY TRANSACTIONS - Equity Method Investments Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction
Net receivables	$ 1,121	$ 883
Total long-term financing receivables, net of allowances	$ 368	73
Minimum \| Unconsolidated Hospitality Ventures
Related Party Transaction
Equity method investment, ownership percentage	20.00%
Maximum \| Unconsolidated Hospitality Ventures
Related Party Transaction
Equity method investment, ownership percentage	50.00%
Related Party
Related Party Transaction
Financing receivable	$ 112	43
Net receivables	67	22
Total long-term financing receivables, net of allowances	45	21
Interest income, debt securities held-to-maturity and financing receivable	5	3	$ 4
Franchise Or License Fees \| Related Party
Related Party Transaction
Related party amounts	83	23	22
Related Parties Guarantees \| Related Party
Related Party Transaction
Related party amounts	$ 2	$ 6	$ 7

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