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TIMESHARE FINANCING RECEIVABLES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Originated
Accounts Notes And Loans Receivable [Line Items]
Timeshare financing receivables, gross	$ 3,764	$ 3,665
Interest receivable outstanding	$ 26	26
Financing receivable, weighted average interest rate (as a percent)	14.50%
Financing receivable, weighted average remaining term (in years)	9 years
Timeshare financing receivable not accruing interest	$ 462	430
Originated | Minimum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	1.50%
Originated | Maximum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	25.80%
Acquired
Accounts Notes And Loans Receivable [Line Items]
Timeshare financing receivables, gross	$ 594	649
Interest receivable outstanding	$ 4	4
Financing receivable, weighted average interest rate (as a percent)	15.10%
Financing receivable, weighted average remaining term (in years)	5 years 10 months 24 days
Timeshare financing receivable not accruing interest	$ 153	152
Acquired | Minimum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	2.00%
Acquired | Maximum
Accounts Notes And Loans Receivable [Line Items]
Financing receivable, stated interest rate (as a percent)	25.00%
Secured Debt | Asset Pledged as Collateral
Accounts Notes And Loans Receivable [Line Items]
Timeshare financing receivables, gross	$ 945	$ 710

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