Vacation Ownership Notes Receivable - Balances of VOI Notes Receivable by Brand and by FICO Score (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts Notes And Loans Receivable [Line Items]
Total receivables	$ 719	$ 735
Sheraton [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	364	358
Westin [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	334	349
Other [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	21	28
700+ [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	366	377
700+ [Member] | Sheraton [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	156	153
700+ [Member] | Westin [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	199	208
700+ [Member] | Other [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	11	16
600-699 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	224	218
600-699 [Member] | Sheraton [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	130	123
600-699 [Member] | Westin [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	91	91
600-699 [Member] | Other [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	3	4
Less than 600 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	26	31
Less than 600 [Member] | Sheraton [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	19	23
Less than 600 [Member] | Westin [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	7	8
No Score [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	103	109
No Score [Member] | Sheraton [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	59	59
No Score [Member] | Westin [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	37	42
No Score [Member] | Other [Member]
Accounts Notes And Loans Receivable [Line Items]
Total receivables	$ 7	$ 8