VACATION OWNERSHIP NOTES RECEIVABLE - Composition of Vacation Ownership Notes Receivable Balances, Net of Reserves (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 2,336	$ 2,343
Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	1,914	1,912
Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	422	431
Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	53	52
Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	369	379
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2,187	2,178
Originated | Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	1,785	1,764
Originated | Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	402	414
Originated | Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	51	51
Originated | Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	351	363
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	149	165
Acquired | Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	129	148
Acquired | Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	20	17
Acquired | Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2	1
Acquired | Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 18	$ 16