VACATION OWNERSHIP NOTES RECEIVABLE - Composition of Vacation Ownership Notes Receivable Balances, Net of Reserves (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 2,291	$ 2,198
Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	1,885	1,792
Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	406	406
Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	60	63
Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	346	343
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2,108	1,956
Originated | Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	1,722	1,571
Originated | Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	386	385
Originated | Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	59	63
Originated | Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	327	322
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	183	242
Acquired | Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	163	221
Acquired | Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	20	21
Acquired | Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	1	0
Acquired | Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 19	$ 21