REVENUE FROM CONTRACTS WITH CUSTOMERS - Composition of Contract Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Bonus point incentive liability	$ 54	$ 51
Topic 606 | Advanced deposits
Disaggregation Of Revenue [Line Items]
Contract liabilities	179	150
Topic 606 | Deferred Sales of VOIs of projects under construction
Disaggregation Of Revenue [Line Items]
Contract liabilities	39	3
Topic 606 | Annual dues and Legacy-HGV Club activation fees
Disaggregation Of Revenue [Line Items]
Contract liabilities	97	76
Topic 606 | Bonus Point incentive liability and marketing package
Disaggregation Of Revenue [Line Items]
Contract liabilities	83	106
Topic 606 | Deferred maintenance fees
Disaggregation Of Revenue [Line Items]
Contract liabilities	12	14
Topic 606 | Other deferred revenue
Disaggregation Of Revenue [Line Items]
Contract liabilities	$ 38	$ 42