Quarterly report pursuant to Section 13 or 15(d)

Franchising, Marketing and Reservation Activities (Details)

v3.21.1
Franchising, Marketing and Reservation Activities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Net Revenues $ (303) $ (410)  
Bad debt expense 0 1  
Franchisees and hotel owners      
Disaggregation of Revenue [Line Items]      
Development advance notes $ 95   $ 92
Minimum      
Disaggregation of Revenue [Line Items]      
Franchise/management agreement term 10 years    
Maximum      
Disaggregation of Revenue [Line Items]      
Franchise/management agreement term 20 years    
Initial franchise fee      
Disaggregation of Revenue [Line Items]      
Net Revenues $ (3) (3)  
Forgiveness of note receivable      
Disaggregation of Revenue [Line Items]      
Net Revenues $ 2 $ 2