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DEBT AND NON-RECOURSE DEBT - Additional Information (Details) - USD ($) $ in Millions						12 Months Ended
	Oct. 08, 2024	Jul. 18, 2024	Jul. 17, 2024	Apr. 08, 2024	Apr. 07, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Nov. 30, 2024	May 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Jan. 17, 2024
Debt Instrument [Line Items]
Remaining borrowing capacity under the revolver facility						$ 715
Accumulated other comprehensive loss, qualifying as hedge						37	$ 42
Repayment amount						1,590	694	$ 990
Restricted cash						438	296
Securitized
Debt Instrument [Line Items]
Timeshare financing receivables, gross									$ 500	$ 375	$ 240
Reserves related to non-recourse debt
Debt Instrument [Line Items]
Restricted cash						193	48
Timeshare Facility
Debt Instrument [Line Items]
Debt instrument repaid amount						814
Debt issuance costs									7	5	4
5.75% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount											$ 101
Debt instrument, stated interest rate											5.75%
5.99% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount										$ 57	$ 58
Debt instrument, stated interest rate										5.99%	5.99%
6.62% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount											$ 46
Debt instrument, stated interest rate											6.62%
8.85% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount											$ 35
Debt instrument, stated interest rate											8.85%
5.50% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount										$ 217
Debt instrument, stated interest rate										5.50%
5.65% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount										$ 80
Debt instrument, stated interest rate										5.65%
6.91% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount										$ 21
Debt instrument, stated interest rate										6.91%
4.98% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount									$ 273
Debt instrument, stated interest rate									4.98%
5.27% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount									$ 147
Debt instrument, stated interest rate									5.27%
5.71% Timeshare Facility
Debt Instrument [Line Items]
Debt instrument, face amount									$ 80
Debt instrument, stated interest rate									5.71%
Securitized Debt
Debt Instrument [Line Items]
Debt instrument repaid amount						765
Senior Notes
Debt Instrument [Line Items]
Debt issuance costs						$ 25	17
Senior Notes \| Senior notes with a rate of 6.625%, due 2032
Debt Instrument [Line Items]
Debt instrument, face amount												$ 900	$ 900
Debt instrument, stated interest rate						6.625%						6.625%
Senior Notes \| Term loan A with a rate of 6.107%, due 2028
Debt Instrument [Line Items]
Debt instrument, face amount	$ 400
Interest rate on revolving credit facility	1.75%
Line of Credit
Debt Instrument [Line Items]
Debt issuance costs						$ 39	21
Line of Credit \| Term loan B with a rate of 6.857%, due 2028
Debt Instrument [Line Items]
Debt instrument, stated interest rate						6.857%
Line of Credit \| Term loan B with a rate of 6.607%, due 2031
Debt Instrument [Line Items]
Debt instrument, stated interest rate						6.607%
Line of Credit \| Term loan A with a rate of 6.107%, due 2028
Debt Instrument [Line Items]
Debt instrument, stated interest rate						6.107%
Non-recourse Debt \| Timeshare Facility with an average rate of 6.420%, due 2025
Debt Instrument [Line Items]
Remaining borrowing capacity						$ 423
Non-recourse Debt \| Timeshare Facility with an average rate of 5.810%, due 2027
Debt Instrument [Line Items]
Maximum borrowing capacity									$ 850
Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs						3	$ 3
Revolving Credit Facility \| Junior Subordinated Debentures \| Variable Interest Entities
Debt Instrument [Line Items]
Repayment amount						171
Revolving Credit Facility \| Senior Secured Credit Facility
Debt Instrument [Line Items]
Debt instrument repaid amount						1,200
Revolving Credit Facility \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Letters of credit outstanding						$ 52
Revolving Credit Facility \| Line of Credit \| Term loan B with a rate of 6.857%, due 2028
Debt Instrument [Line Items]
Interest rate on revolving credit facility				2.50%	2.75%
Derivative fixed interest rate						1.55%
Notional amount						$ 550
Revolving Credit Facility \| Line of Credit \| Term loan B with a rate of 6.607%, due 2031
Debt Instrument [Line Items]
Interest rate on revolving credit facility		2.25%	2.75%
Cash Collateral Secured Credit Facilities
Debt Instrument [Line Items]
Letters of credit outstanding						$ 1