Vacation Ownership Notes Receivable - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Average estimated default rate for the company's pool of receivables	9.10%	9.20%
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	$ 46	$ 42
Number of days loan consider to be in default	120 days