v3.25.2
REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Deferred Revenue, Deferred Cost of VOI Sales and Deferred Direct Selling Costs from Sales of VOIs Related to Projects under Construction (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Disaggregation Of Revenue [Line Items]    
Sales of VOIs, net $ 551 $ 252
Deferred Sales of VOIs    
Disaggregation Of Revenue [Line Items]    
Sales of VOIs, net 300 92
Cost of VOI sales 89 28
Sales and marketing expense $ 48 $ 13