v3.26.1
ACQUISITION - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 29, 2026
Jun. 30, 2026
Jun. 30, 2026
Apr. 28, 2026
Dec. 31, 2025
Restructuring Cost and Reserve [Line Items]          
Accounts payable, accrued expenses and other   $ 1,169 $ 1,169   $ 1,018
Goodwill   1,986 1,986   $ 1,985
Elara          
Restructuring Cost and Reserve [Line Items]          
Ownership percentage       25.00%  
Elara Acquisition          
Restructuring Cost and Reserve [Line Items]          
Ownership interest acquired 75.00%        
Cash consideration $ 131        
Accounts payable, accrued expenses and other   3 3    
Controlling ownership interest percentage 100.00%        
Acquisition-related expense   2 2    
Business combination, achieved in stages, preacquisition equity interest in acquiree, remeasurement, loss   $ 1 $ 1    
Financing receivable, weighted average remaining term (in years)     10 years    
Securitized timeshare financing receivables $ 293        
Unsecuritized timeshare financing receivables 118        
Goodwill 1        
Elara Acquisition | Senior Notes and Other Debt          
Restructuring Cost and Reserve [Line Items]          
Debt $ 7