Vacation Ownership Notes Receivable - Loan Loss Reserve (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 109	$ 132	$ 121	$ 136
Provisions for loan losses	5	5	2	12
Write-offs	(7)	(8)	(16)	(19)
Other
Ending Balance	107	129	107	129
Vacation ownership loans - securitized [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	59	73	73	80
Provisions for loan losses			(9)
Write-offs
Other	(5)	(7)	(10)	(14)
Ending Balance	54	66	54	66
Vacation ownership loans - unsecuritized [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	50	59	48	56
Provisions for loan losses	5	5	11	12
Write-offs	(7)	(8)	(16)	(19)
Other	5	7	10	14
Ending Balance	$ 53	$ 63	$ 53	$ 63