Annual report pursuant to Section 13 and 15(d)

Other Expenses and Charges - Activity (Details)

v3.22.0.1
Other Expenses and Charges - Activity (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restructuring Reserve [Roll Forward]      
Beginning balance $ 10,000,000 $ 8,000,000  
Restructuring 0 34,000,000 $ 8,000,000
Payments for Restructuring   30,000,000 0
Restructuring Reserve, Translation and Other Adjustment   (2,000,000)  
Ending balance 0 10,000,000 8,000,000
Hotel Franchising      
Restructuring Reserve [Roll Forward]      
Restructuring   15,000,000  
Hotel Management      
Restructuring Reserve [Roll Forward]      
Restructuring   3,000,000  
Corporate and Other      
Restructuring Reserve [Roll Forward]      
Restructuring   16,000,000  
2019 Plan      
Restructuring Reserve [Roll Forward]      
Beginning balance 0 8,000,000  
Restructuring   0  
Payments for Restructuring   7,000,000  
Restructuring Reserve, Translation and Other Adjustment   (1,000,000)  
Ending balance   0 8,000,000
2020 Plans      
Restructuring Reserve [Roll Forward]      
Beginning balance 10,000,000 0  
Restructuring   34,000,000  
Payments for Restructuring 10,000,000 23,000,000  
Restructuring Reserve, Translation and Other Adjustment   (1,000,000)  
Ending balance   10,000,000 0
Personnel-related | 2020 Plans      
Restructuring Reserve [Roll Forward]      
Beginning balance 7,000,000 0  
Restructuring   28,000,000  
Payments for Restructuring 7,000,000 20,000,000  
Restructuring Reserve, Translation and Other Adjustment   (1,000,000)  
Ending balance 0 7,000,000 0
Facility-related | 2020 Plans      
Restructuring Reserve [Roll Forward]      
Beginning balance 3,000,000 0  
Restructuring   5,000,000  
Payments for Restructuring 3,000,000 2,000,000  
Restructuring Reserve, Translation and Other Adjustment   0  
Ending balance 0 3,000,000 0
Other | 2020 Plans      
Restructuring Reserve [Roll Forward]      
Beginning balance $ 0 0  
Restructuring   1,000,000  
Payments for Restructuring   1,000,000  
Restructuring Reserve, Translation and Other Adjustment   0  
Ending balance   $ 0 $ 0