VARIABLE INTEREST ENTITIES - Cash Flows Between Company and Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Vacation Ownership Notes Receivable Securitizations
Cash Inflows [Abstract]
Proceeds from vacation ownership notes receivable securitizations	$ 21	$ 0
Principal receipts	121	139
Interest receipts	57	58
Reserve release	0	57
Total	199	254
Cash Outflows [Abstract]
Principal to investors	(131)	(155)
Voluntary repurchases of defaulted vacation ownership notes receivable	(28)	(23)
Interest to investors	(16)	(11)
Total	(175)	(189)
Cash Flows Between Transferee and Transferor Net	24	65
Warehouse Credit Facility
Cash Inflows [Abstract]
Proceeds from vacation ownership notes receivable securitizations	150	102
Principal receipts	18	4
Interest receipts	10	1
Total	178	107
Cash Outflows [Abstract]
Principal to investors	(15)	0
Interest to investors	(3)	0
Cash Flows Between Transferee And Transfer or Funding Of Restricted Cash	(5)	(1)
Total	(23)	(1)
Cash Flows Between Transferee and Transferor Net	$ 155	$ 106