Vacation Ownership Notes Receivable - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Receivables [Abstract]
Average estimated default rate for the Company's pool of receivables	9.40%
Net adjustment on loan loss reserve	$ 2
Increase in provision for new contract sales	13
Favorable adjustment from improved performance in portfolio	11
Result of change in projected default rate	0.10%
Default rate change impact on loan loss reserve	4
Maximum outstanding period for note receivable being delinquent	30 days
Delinquent notes receivable	$ 46	$ 49
Number of days loan consider to be in default	120 days