Fair Value - Carrying Amounts and Estimated Fair Values of Long-Term Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets:
Securitized vacation ownership notes receivable, Carrying Amount	$ 210	$ 227
Total financial assets, Carrying Amount	577	576
Liabilities:
Total financial liabilities, Carrying Amount	2,395	2,574
Off-Balance sheet:
Surety bonds, Carrying Amount	28
Total off-balance sheet, Carrying Amount	0	0
Assets:
Total financial assets, Fair Value	711	710
Liabilities:
Total financial liabilities, Fair Value	2,531	2,685
Off-Balance sheet:
Total off-balance sheet, Fair Value	111	110
Level 1 [Member]
Assets:
Restricted cash, Carrying Amount	3	3
Liabilities:
Long-term debt, Carrying Amount	2,231	2,398
Assets:
Restricted cash, Fair Value	3	3
Liabilities:
Long-term debt, Fair Value	2,361	2,503
Level 3 [Member]
Assets:
VOI notes receivable, Carrying Amount	306	295
Securitized vacation ownership notes receivable, Carrying Amount	210	227
Other notes receivable, Carrying Amount	58	51
Liabilities:
Long-term securitized debt, Carrying Amount	164	176
Assets:
VOI notes receivable, Fair Value	384	369
Securitized vacation ownership notes receivable, Fair Value	266	287
Other notes receivable, Fair Value	58	51
Liabilities:
Long-term securitized debt, Fair Value	170	182
Level 2 [Member]
Off-Balance sheet:
Letters of credit, Carrying Amount	0	0
Surety bonds, Carrying Amount	0	0
Off-Balance sheet:
Letters of credit, Fair Value	83	83
Surety bonds, Fair Value	$ 28	$ 27