VACATION OWNERSHIP NOTES RECEIVABLE - Aging of Recorded Investment in Principal, Vacation Ownership Notes Receivable (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	$ 2,848	$ 2,813
Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	678	632
Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	2,170	2,181
Total past due
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	297	271
Total past due | Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	198	172
Total past due | Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	99	99
31 – 90 days past due
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	104	103
31 – 90 days past due | Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	27	31
31 – 90 days past due | Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	77	72
91 – 120 days past due
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	24	26
91 – 120 days past due | Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	8	7
91 – 120 days past due | Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	16	19
Greater than 120 days past due
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	169	142
Greater than 120 days past due | Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	163	134
Greater than 120 days past due | Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	6	8
Current
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	2,551	2,542
Current | Non-securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	480	460
Current | Securitized
Financing Receivable, Past Due [Line Items]
Vacation ownership notes receivable	$ 2,071	$ 2,082