Quarterly report pursuant to Section 13 or 15(d)

Franchising, Marketing and Reservation Activities (Details)

v3.21.2
Franchising, Marketing and Reservation Activities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Disaggregation of Revenue [Line Items]          
Net Revenues $ (406) $ (258) $ (709) $ (667)  
Bad debt expense related to notes 0 0 0 1  
Payments of development advance notes     (17) (6)  
Proceeds from development advance notes     1 0  
Payments of development advance notes, net     (16) (6)  
Franchisees and hotel owners          
Disaggregation of Revenue [Line Items]          
Development advance notes 101   $ 101   $ 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 (4) (5) $ (7) (8)  
Forgiveness of note receivable          
Disaggregation of Revenue [Line Items]          
Net Revenues $ 2 $ 2 $ (4) $ (4)