Planned Spin-off - Additional Information (Detail) (Spinoff [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 0 Months Ended
Mar. 31, 2015
Feb. 10, 2015
Property
Resort
Restructuring Cost and Reserve [Line Items]    
Professional fees $ 6  
Scenario, Plan [Member]
   
Restructuring Cost and Reserve [Line Items]    
Number of vacation ownership resorts   23
Number of owned properties transfer to new entity   5