Quarterly report pursuant to Section 13 or 15(d)

Other Expenses and Charges - Narrative (Details)

v3.20.1
Other Expenses and Charges - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]    
Restructuring $ 13 $ 0
Transaction-related, net 8 7
Spin-Off, Hotel Group Business    
Restructuring Cost and Reserve [Line Items]    
Separation-related costs   $ 21
Hotel Franchising | Reportable Segments    
Restructuring Cost and Reserve [Line Items]    
Restructuring 7  
Hotel Management | Reportable Segments    
Restructuring Cost and Reserve [Line Items]    
Restructuring $ 5