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TIMESHARE FINANCING RECEIVABLES - Schedule of Gross Timeshare Financing Receivables Balances by Average FICO Score (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross $ 4,978 $ 4,314
Originated    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 3,970 3,665
Acquired    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 1,008 649
700+ | Originated    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 2,693 2,492
700+ | Acquired    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 666 366
600-699 | Originated    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 824 756
600-699 | Acquired    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 251 187
Less than 600 | Originated    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 89 74
Less than 600 | Acquired    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 24 12
No score | Originated    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross 364 343
No score | Acquired    
Financing Receivable, Recorded Investment [Line Items]    
Timeshare financing receivables, gross $ 67 $ 84