BUSINESS SEGMENTS - Assets (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Consolidated Assets	$ 9,237	$ 9,613
Operating segments
Segment Reporting Information [Line Items]
Consolidated Assets	8,771	8,808
Operating segments | Vacation Ownership
Segment Reporting Information [Line Items]
Consolidated Assets	7,947	7,897
Operating segments | Exchange & Third-Party Management
Segment Reporting Information [Line Items]
Consolidated Assets	824	911
Corporate and Other
Segment Reporting Information [Line Items]
Consolidated Assets	$ 466	$ 805