Quarterly report [Sections 13 or 15(d)]

Other Expenses and Charges - Narrative (Details)

v3.25.3
Other Expenses and Charges - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2025
lawsuit
Sep. 30, 2025
USD ($)
employee
Sep. 30, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]            
Transaction-related   $ 1     $ 2 $ 46
Impairment $ 0 0 $ 12   0 12
Restructuring 2 2     16 11
Number of employees impacted | lawsuit       135    
Separation-related 0 (1)     $ (1) 11
Hotel Franchising Segment | 2025 Global Cost Basis and Streamlining Plan            
Restructuring Cost and Reserve [Line Items]            
Number of employees impacted | employee         178  
Restructuring and Related Cost, Incurred Cost 2       $ 16  
Failed Hostile Takeover Defense, Share-based Compensation Costs            
Restructuring Cost and Reserve [Line Items]            
Transaction-related $ 1       2  
Failed Hostile Takeover Defense And Repricing Term Loan            
Restructuring Cost and Reserve [Line Items]            
Transaction-related   $ 1       46
Failed Hostile Takeover Defense, Legal And Advisory Costs            
Restructuring Cost and Reserve [Line Items]            
Transaction-related           $ 51
Facility Closing | CANADA | Hotel Franchising Segment | 2025 Global Cost Basis and Streamlining Plan            
Restructuring Cost and Reserve [Line Items]            
Restructuring and Related Cost, Incurred Cost         $ 8