VACATION OWNERSHIP NOTES RECEIVABLE - Notes Receivable Reserves (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Acquired
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	$ 29
Securitizations	0
Clean-up call	0
Write-offs	(21)
Recoveries	13
Defaulted vacation ownership notes receivable repurchase activity	0
(Decrease) increase in vacation ownership notes receivable reserve	(3)
Ending balance	18
Originated
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	362
Securitizations	0
Clean-up call	0
Write-offs	(88)
Defaulted vacation ownership notes receivable repurchase activity	0
(Decrease) increase in vacation ownership notes receivable reserve	183
Ending balance	457
Non-securitized | Acquired
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	11
Securitizations	(2)
Clean-up call	2
Write-offs	(21)
Recoveries	13
Defaulted vacation ownership notes receivable repurchase activity	14
(Decrease) increase in vacation ownership notes receivable reserve	(10)
Ending balance	7
Non-securitized | Originated
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	149
Securitizations	(126)
Clean-up call	43
Write-offs	(88)
Defaulted vacation ownership notes receivable repurchase activity	76
(Decrease) increase in vacation ownership notes receivable reserve	162
Ending balance	216
Securitized | Acquired
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	18
Securitizations	2
Clean-up call	(2)
Write-offs	0
Recoveries	0
Defaulted vacation ownership notes receivable repurchase activity	(14)
(Decrease) increase in vacation ownership notes receivable reserve	7
Ending balance	11
Securitized | Originated
Time Sharing Transactions, Allowance for Uncollectible Accounts [Roll Forward]
Beginning balance	213
Securitizations	126
Clean-up call	(43)
Write-offs	0
Defaulted vacation ownership notes receivable repurchase activity	(76)
(Decrease) increase in vacation ownership notes receivable reserve	21
Ending balance	$ 241