REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Deferred Revenue, Cost of VOI Sales and Direct Selling Costs from Sales of VOIs Related to Project Under Construction (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Sales of VOIs, net	$ 253	$ 190
Sales of VOIs
Disaggregation Of Revenue [Line Items]
Sales of VOIs, net	6	3
Cost of VOI sales	1	1
Sales and marketing expense	$ 1	$ 1