CONTINGENCIES AND COMMITMENTS (Details) $ in Millions	Mar. 31, 2025 USD ($) transaction vacation_ownership_unit
Commitments and Contingencies Disclosure [Line Items]
Surety bonds issued	$ 127
Guarantor obligations, maximum exposure, remainder of year	18
Bali, Indonesia
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment	$ 32
Number of transactions \| transaction	2
Thailand
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment	$ 80
Number of transactions \| transaction	2
Nashville, Tennessee
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment	$ 122
Purchase commitment obligation due, 2027	14
Purchase commitment obligation due, 2028	$ 108
Number of vacation ownership units, acquisition pending \| vacation_ownership_unit	168
32 Unit Transaction \| Bali, Indonesia
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment obligation due, remainder of 2025	$ 10
Purchase commitment obligation due, 2026	$ 1
Number of vacation ownership units, acquisition pending \| vacation_ownership_unit	32
26 Unit Transaction \| Bali, Indonesia
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment obligation due, remainder of 2025	$ 6
Purchase commitment obligation due, 2026	14
Purchase commitment obligation due, 2027	$ 1
Number of vacation ownership units, acquisition pending \| vacation_ownership_unit	26
52 Unit Transaction \| Thailand
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment obligation due, remainder of 2025	$ 43
Number of vacation ownership units, acquisition pending \| vacation_ownership_unit	52
60 Unit Transaction \| Thailand
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment obligation due, remainder of 2025	$ 4
Purchase commitment obligation due, 2026	31
Purchase commitment obligation due, 2027	$ 2
Number of vacation ownership units, acquisition pending \| vacation_ownership_unit	60
Revolving corporate credit facility, net
Commitments and Contingencies Disclosure [Line Items]
Letters of credit outstanding	$ 11
Revolving corporate credit facility, net \| Securitization Transaction
Commitments and Contingencies Disclosure [Line Items]
Letters of credit outstanding	10
Letter of credit
Commitments and Contingencies Disclosure [Line Items]
Letters of credit outstanding	$ 10
Exchange & Third-Party Management
Commitments and Contingencies Disclosure [Line Items]
Guarantor obligations, ownership percentage	95.00%
Information technology hardware and software
Commitments and Contingencies Disclosure [Line Items]
Purchase commitment	$ 75
Purchase commitment obligation due, remainder of 2025	37
Purchase commitment obligation due, 2026	27
Purchase commitment obligation due, 2027	9
Purchase commitment obligation due, 2028	$ 2

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Commitments and Contingencies Disclosure [Line Items]

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Number Of Vacation Ownership Units, Acquisition Pending

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Surety Bonds issued.

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