VARIABLE INTEREST ENTITIES - Interest Income and Expense Recognized as a Result of Our Involvement with Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Variable Interest Entity [Line Items]
Interest income	$ 86	$ 81
Interest expense, net	(40)	(40)
Administrative expenses	61	$ 63
Variable interest entity
Variable Interest Entity [Line Items]
Interest income	74
Interest expense, net	26
Debt issuance cost amortization	3
Variable interest entity \| Vacation Ownership Notes Receivable Securitizations
Variable Interest Entity [Line Items]
Interest income	64
Interest expense, net	23
Debt issuance cost amortization	2
Variable interest entity \| Warehouse Credit Facility
Variable Interest Entity [Line Items]
Interest income	10
Interest expense, net	3
Debt issuance cost amortization	$ 1

- Definition

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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