COMMITMENTS AND CONTINGENCIES - Additional Information (Details) $ in Millions		1 Months Ended		3 Months Ended	9 Months Ended
	Oct. 08, 2024 USD ($)	May 31, 2024 USD ($)	Nov. 30, 2023	Mar. 31, 2024 USD ($)	Sep. 30, 2024 USD ($) kiosk store	Sep. 30, 2023 USD ($)
Long-term Purchase Commitment [Line Items]
Property acquired					$ 27	$ 18
Reasonably estimable of possible losses					8
Payments of settlements		$ 13
Insurance deductible expense				$ 54
Insurance Claims
Long-term Purchase Commitment [Line Items]
Decrease in insurance refund recovery					2
Surety Bond
Long-term Purchase Commitment [Line Items]
Contractual obligation					$ 732
Diamond Acquisition
Long-term Purchase Commitment [Line Items]
Damages sought				104
Payments of settlements				$ 50
Marketing and license fee agreements
Long-term Purchase Commitment [Line Items]
Purchase commitment, period (in years)			10 years
Number of stores | store					132
Number of virtual kiosks | kiosk					9
Inventory Purchase Obligations
Long-term Purchase Commitment [Line Items]
Purchase commitment, period (in years)					2 years
Purchase commitment					$ 52
Inventory Purchase Obligations | JAPAN
Long-term Purchase Commitment [Line Items]
Vacation ownership intervals commitment					27
Inventory Purchase Obligations | JAPAN | Subsequent Event
Long-term Purchase Commitment [Line Items]
Property acquired	$ 36
Other Commitments
Long-term Purchase Commitment [Line Items]
Purchase commitment					$ 25