SECURITIZED DEBT - Vacation Ownership Notes Receivable Securitizations (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Vacation ownership notes receivable securitizations, gross	$ 2,136	$ 2,096
Secured debt, net	2,136	2,096
Variable Interest Entity
Debt Instrument [Line Items]
Vacation ownership notes receivable securitizations, gross	2,163	2,121
Securitized debt \| Variable Interest Entity
Debt Instrument [Line Items]
Vacation ownership notes receivable securitizations, gross	$ 2,163
Debt, weighted average interest rate	4.70%
Securitized debt \| Variable Interest Entity \| Warehouse Credit Facility
Debt Instrument [Line Items]
Vacation ownership notes receivable securitizations, gross	$ 124	150
Unamortized debt discount and issuance costs	(2)	(2)
Secured debt, net	$ 122	148
Interest rate, effective percentage	5.70%
Securitized debt \| Vacation Ownership Notes Receivable Securitizations \| Variable Interest Entity
Debt Instrument [Line Items]
Vacation ownership notes receivable securitizations, gross	$ 2,039	1,971
Unamortized debt discount and issuance costs	(25)	(23)
Secured debt, net	$ 2,014	$ 1,948
Securitized debt \| Minimum \| Variable Interest Entity
Debt Instrument [Line Items]
Debt, stated interest rate	1.50%
Securitized debt \| Maximum \| Variable Interest Entity
Debt Instrument [Line Items]
Debt, stated interest rate	6.60%

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