Fair Value - Carrying Amounts and Estimated Fair Values of Long-Term Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets:
Securitized vacation ownership notes receivable, Carrying Amount	$ 379	$ 438
Total financial assets, Carrying Amount	553	547
Liabilities:
Long-term debt, Carrying Amount	1,264	1,273
Total financial liabilities, Carrying Amount	1,586	1,656
Off-Balance sheet:
Total off-balance sheet, Carrying Amount
Assets:
Total financial assets, Fair Value	693	688
Liabilities:
Total financial liabilities, Fair Value	1,727	1,849
Off-Balance sheet:
Total off-balance sheet, Fair Value	199	197
Level 1 [Member]
Assets:
Restricted cash, Carrying Amount	5	6
Liabilities:
Long-term debt, Carrying Amount	1,264	1,273
Assets:
Restricted cash, Fair value	5	6
Liabilities:
Long-term debt, Fair Value	1,387	1,447
Level 3 [Member]
Assets:
VOI notes receivable, Carrying Amount	152	92
Securitized vacation ownership notes receivable, Carrying Amount	379	438
Other notes receivable, Carrying Amount	17	11
Liabilities:
Long-term securitized debt, Carrying Amount	322	383
Assets:
VOI notes receivable, Fair Value	189	113
Securitized vacation ownership notes receivable, Fair Value	482	558
Other notes receivable, Fair Value	17	11
Liabilities:
Long-term securitized debt, Fair Value	340	402
Level 2 [Member]
Off-Balance sheet:
Letters of credit, Carrying Amount
Surety bonds, Carrying Amount
Off-Balance sheet:
Letters of credit, Fair Value	117	117
Surety bonds, Fair Value	$ 82	$ 80