Quarterly report pursuant to Section 13 or 15(d)

Debt Due to Parent (Details)

v3.8.0.1
Debt Due to Parent (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Debt Instrument [Line Items]      
Interest expense $ 1 $ 2  
Affiliated Entity | Wyndham Worldwide      
Debt Instrument [Line Items]      
Outstanding borrowings from the Parent 197   $ 184
Interest expense $ 1 $ 2  
Affiliated Entity | Wyndham Worldwide | LIBOR      
Debt Instrument [Line Items]      
Basis spread on variable rate (as a percent) 0.65%    
Affiliated Entity | Wyndham Worldwide | Funding of Acquisition of Fen Hotels      
Debt Instrument [Line Items]      
Outstanding borrowings from the Parent $ 67    
Fixed interest rate 6.33%    
Affiliated Entity | Wyndham Worldwide | Funding of Internal Reorganization      
Debt Instrument [Line Items]      
Outstanding borrowings from the Parent $ 14    
Fixed interest rate 6.25%