Vacation Ownership Notes Receivable - Past Due Balances of VOI Notes Receivable (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Receivables [Abstract]    
Total receivables $ 694 $ 701
Current 651 659
30-59 Days Delinquent 9 9
60-89 Days Delinquent 6 4
>90 Days Delinquent 28 29
Total Delinquent $ 43 $ 42