BUSINESS SEGMENTS - Reconciliation of Adjusted EBITDA to Net Income or Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Corporate and other	$ (215)	$ (186)	$ (113)
Interest expense	(118)	(164)	(150)
Tax (provision) benefit	(191)	(74)	84
Depreciation and amortization	(132)	(146)	(123)
Share-based compensation expense	(39)	(51)	(37)
Certain items	(95)	(173)	(284)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	391	49	(275)
Vacation Ownership
Segment Reporting Information [Line Items]
Adjusted earnings before income taxes depreciation and amortization	1,033	699	229
Exchange & Third-Party Management
Segment Reporting Information [Line Items]
Adjusted earnings before income taxes depreciation and amortization	$ 148	$ 144	$ 119