Annual report [Section 13 and 15(d), not S-K Item 405]

Intangible Assets (Goodwill and Intangible Assets) (Details)

v3.25.4
Intangible Assets (Goodwill and Intangible Assets) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]      
Goodwill $ 1,525 $ 1,525 $ 1,525
Gross 
Carrying 
Amount 905 913  
Accumulated 
Amortization 623 595  
Net 
Carrying 
Amount 282 318  
Impairment 86 12 0
Hotel Franchising Segment [Member]      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 1,441   1,441
Hotel Management Segment [Member]      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 84   $ 84
Franchise agreements      
Finite-Lived Intangible Assets [Line Items]      
Gross 
Carrying 
Amount 903 912  
Accumulated 
Amortization 621 594  
Net 
Carrying 
Amount 282 318  
Management agreements      
Finite-Lived Intangible Assets [Line Items]      
Gross 
Carrying 
Amount 1 1  
Accumulated 
Amortization 1 1  
Net 
Carrying 
Amount 0 0  
Other      
Finite-Lived Intangible Assets [Line Items]      
Gross 
Carrying 
Amount 1 0  
Accumulated 
Amortization 1 0  
Net 
Carrying 
Amount 0 0  
Vienna House Franchise Rights      
Finite-Lived Intangible Assets [Line Items]      
Impairment 12    
Trademarks      
Finite-Lived Intangible Assets [Line Items]      
Unamortized Intangible Assets 1,208 $ 1,230  
Vienna House Trademark      
Finite-Lived Intangible Assets [Line Items]      
Impairment $ 26