Quarterly report [Sections 13 or 15(d)]

Other Expenses and Charges - Narrative (Details)

v3.25.2
Other Expenses and Charges - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Mar. 31, 2025
lawsuit
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2025
USD ($)
employee
Jun. 30, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]            
Transaction-related     $ 5   $ 1 $ 46
Impairment $ 0   0 $ 12 0 12
Restructuring 13   7   13 9
Number of employees impacted | lawsuit   135        
Separation-related 0   12   $ 0 11
Hotel Franchising Segment | 2025 Global Cost Basis and Streamlining Plan            
Restructuring Cost and Reserve [Line Items]            
Number of employees impacted | employee         156  
Restructuring and Related Cost, Incurred Cost 13       $ 13  
Failed Hostile Takeover Defense, Share-based Compensation Costs            
Restructuring Cost and Reserve [Line Items]            
Transaction-related 1       1  
Failed Hostile Takeover Defense And Repricing Term Loan            
Restructuring Cost and Reserve [Line Items]            
Transaction-related     $ 5     46
Failed Hostile Takeover Defense, Legal And Advisory Costs            
Restructuring Cost and Reserve [Line Items]            
Transaction-related           $ 50
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       $ 8