Annual report pursuant to Section 13 and 15(d)

Revenue Recognition (Narrative) (Details)

v3.25.0.1
Revenue Recognition (Narrative) (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
hotel
Capitalized Contract Cost [Line Items]      
Capitalized contract costs $ 76 $ 68  
Number of hotels from hotel ownership portfolio earning revenue | hotel     2
Franchise agreement, revenue recognition period (within) 13 years    
Minimum      
Capitalized Contract Cost [Line Items]      
Standard Management Agreement, Term 10 years    
Standard Franchise Agreement, Term [Line Items] 10 years    
Standard Management Agreement, Term 10 years    
Maximum      
Capitalized Contract Cost [Line Items]      
Standard Management Agreement, Term 20 years    
Standard Franchise Agreement, Term [Line Items] 20 years    
Standard Management Agreement, Term 20 years    
Other current assets      
Capitalized Contract Cost [Line Items]      
Capitalized contract costs $ 5 4  
Other non-current assets      
Capitalized Contract Cost [Line Items]      
Capitalized contract costs $ 71 $ 64