v3.25.0.1
REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Contract Balances (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of Revenue [Line Items]    
Total contract liabilities $ 2,396 $ 3,357
Deferred revenue related to the loyalty program    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 1,333 1,130
Deferred revenue related to distribution and destination management services    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 705 719
Deferred revenue related to insurance programs    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 112 75
Deferred revenue related to co-branded credit card programs    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 66 49
Advanced deposits    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 53 57
Initial fees received from franchise owners    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 47 45
Deferred revenue related to the paid membership program    
Disaggregation of Revenue [Line Items]    
Total contract liabilities 0 1,204
Other deferred revenue    
Disaggregation of Revenue [Line Items]    
Total contract liabilities $ 80 $ 78