Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Long-Term Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets:
VOI notes receivable, Carrying Amount	$ 92	$ 93
Securitized vacation ownership notes receivable, Carrying Amount	438	446
Total financial assets, Carrying Amount	547	567
Liabilities:
Long-term debt, Carrying Amount	1,273	2,194
Long-term securitized debt, Carrying Amount	383	402
Total financial liabilities, Carrying Amount	1,656	2,596
Off-Balance sheet:
Total off-balance sheet, Carrying Amount
Letters of credit, Fair Value	117
Total off-balance sheet, Fair Value	197	192
Assets:
Total financial assets, Fair Value	688	688
Liabilities:
Total financial liabilities, Fair Value	1,849	2,854
Level 1 [Member]
Assets:
Restricted cash, Carrying Amount	6	2
Liabilities:
Long-term debt, Carrying Amount	1,273	2,194
Assets:
Restricted cash, Fair value	6	2
Liabilities:
Long-term debt, Fair Value	1,447	2,442
Level 3 [Member]
Assets:
VOI notes receivable, Carrying Amount	92	93
Securitized vacation ownership notes receivable, Carrying Amount	438	446
Other notes receivable, Carrying Amount	11	26
Liabilities:
Long-term securitized debt, Carrying Amount	383	402
Assets:
VOI notes receivable, Fair Value	113	109
Securitized vacation ownership notes receivable, Fair Value	558	551
Other notes receivable, Fair Value	11	26
Liabilities:
Long-term securitized debt, Fair Value	402	412
Level 2 [Member]
Off-Balance sheet:
Letters of credit, Carrying Amount
Surety bonds, Carrying Amount
Letters of credit, Fair Value	117	171
Surety bonds, Fair Value	$ 80	$ 21