Vacation Ownership Notes Receivable - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Average estimated default rate for the company's pool of receivables	9.10%	9.10%
Projected default rate on impact to loan loss reserve	0.10%
Default rate change impact on loan loss reserve	$ 5
Maximum outstanding period for note receivable being delinquent	30 days
Delinquent notes receivable	$ 45	$ 46
Number of days loan consider to be in default	120 days