v3.26.3
Acquisitions Narrative (Details) - USD ($)
$ in Millions
 9 Months Ended
Aug. 01, 2026
Jul. 15, 2026
Feb. 10, 2025
Sep. 30, 2026
Sep. 30, 2025
Business Combination [Line Items]          
Payments to acquire business       $ 290 $ 1
Vacation Ownership | Other acquisition          
Business Combination [Line Items]          
Payments to acquire business     $ 1    
Business Combination, Consideration Transferred, Liabilities Incurred     2    
Business Combination, Consideration Transferred, net of cash acquired     3    
Vacation Ownership | Spinnaker Resorts          
Business Combination [Line Items]          
Payments to acquire business $ 163        
Definite-lived intangible assets [1],[2] 19        
Business Combination, Recognized Asset Acquired, Other Asset, Current 2        
Business Combination, Recognized Asset Acquired, Asset 155        
Business Combination, Recognized Liability Assumed, Accounts Payable, Current 5        
Business Combination, Recognized Liability Assumed, Other Liability, Current 18        
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current 1        
Business Combination, Recognized Liability Assumed, Deferred Tax Liability 21        
Business Combination, Recognized Liability Assumed, Liability 45        
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill, Less Noncontrolling Interest (110)        
Goodwill, Acquired During Period [2] 55        
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash 137        
Business Combination, Price of Acquisition, Expected 150        
Business Combination, Contingent Consideration, Liability 2        
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent 20        
Business Combination, Recognized Asset Acquired, Restricted cash 8        
Business Combination, Recognized Asset Acquired, Trade receivables, net 2        
Business Combination, Recognized Asset Acquired, Financing Receivable, after Allowance for Credit Loss, net 77        
Business Combination, Recognized Asset Acquired, Inventory, Current 6        
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current 1        
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment 20        
Business Combination, Consideration Transferred, net of cash acquired 165        
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration 37        
Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price 77        
Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) (1)        
Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value 115        
Vacation Ownership | Spinnaker Resorts | Maximum [Member]          
Business Combination [Line Items]          
Business Combination, Contingent Consideration, Liability $ 10        
Intangible Asset, Finite-Lived, Useful Life 21 years        
Vacation Ownership | Spinnaker Resorts | Minimum [Member]          
Business Combination [Line Items]          
Intangible Asset, Finite-Lived, Useful Life 15 years        
Vacation Ownership | Spinnaker Resorts | Weighted Average          
Business Combination [Line Items]          
Intangible Asset, Finite-Lived, Useful Life 16 years        
Vacation Ownership | Spinnaker Resorts | Seller related payoffs          
Business Combination [Line Items]          
Business Combination, Consideration Transferred, Liabilities Incurred $ 8        
Vacation Ownership | Spinnaker Resorts | Other customary closing adjustments          
Business Combination [Line Items]          
Business Combination, Consideration Transferred, Liabilities Incurred $ 5        
Vacation Ownership | Yes&          
Business Combination [Line Items]          
Definite-lived intangible assets [3],[4]   $ 85      
Business Combination, Recognized Asset Acquired, Other Asset, Current   7      
Business Combination, Recognized Asset Acquired, Asset   191      
Business Combination, Recognized Liability Assumed, Accounts Payable, Current   1      
Business Combination, Recognized Liability Assumed, Other Liability, Current   15      
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current   2      
Business Combination, Recognized Liability Assumed, Liability   48      
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill, Less Noncontrolling Interest   (143)      
Goodwill, Acquired During Period [3]   19      
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash   157      
Business Combination, Price of Acquisition, Expected   193      
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent   4      
Business Combination, Recognized Asset Acquired, Restricted cash   1      
Business Combination, Recognized Asset Acquired, Trade receivables, net   1      
Business Combination, Recognized Asset Acquired, Financing Receivable, after Allowance for Credit Loss, net   37      
Business Combination, Recognized Asset Acquired, Inventory, Current   19      
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current   2      
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment   35      
Business Combination, Consideration Transferred, net of cash acquired   162      
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration   16      
Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price   37      
Financing Receivable, Purchased with Credit Deterioration, Discount (Premium)   2      
Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value   51      
Business Combination, Recognized Liability Assumed, Financial Liability   $ 30      
Vacation Ownership | Yes& | Maximum [Member]          
Business Combination [Line Items]          
Intangible Asset, Finite-Lived, Useful Life   19 years      
Vacation Ownership | Yes& | Minimum [Member]          
Business Combination [Line Items]          
Intangible Asset, Finite-Lived, Useful Life   17 years      
Vacation Ownership | Yes& | Weighted Average          
Business Combination [Line Items]          
Intangible Asset, Finite-Lived, Useful Life   19 years      
Vacation Ownership | Yes& | Seller related payoffs          
Business Combination [Line Items]          
Business Combination, Consideration Transferred, Liabilities Incurred   $ 5      
Vacation Ownership | Yes& | Other customary closing adjustments          
Business Combination [Line Items]          
Business Combination, Consideration Transferred, Liabilities Incurred   1      
Vacation Ownership | Yes& | Debt          
Business Combination [Line Items]          
Business Combination, Consideration Transferred, Liabilities Incurred   $ 30      
Vacation Ownership | Balance Sheet Location [Axis]: us-gaap:IntangibleAssetsNetExcludingGoodwill | Other acquisition          
Business Combination [Line Items]          
Definite-lived intangible assets     2    
Vacation Ownership | Balance Sheet Location [Axis]: us-gaap:PropertyPlantAndEquipmentNet | Other acquisition          
Business Combination [Line Items]          
Business Combination, PP&E acquired     $ 1    
[1] Acquired intangible assets have estimated useful lives of between 15 and 21 years, with a weighted-average amortization period of 16 years, primarily driven by customer lists.
[2] Goodwill and other intangible assets associated with this acquisition are not deductible for income tax purposes.
[3] Goodwill and other intangible assets associated with this acquisition are expected to be deductible for income tax purposes.
[4] Acquired intangible assets have estimated useful lives of between 17 and 19 years, with a weighted-average amortization period of 19 years, primarily driven by management agreements.