Vacation Ownership Contract Receivables (Credit Quality For Financed Receivables And The Allowance For Credit Losses) (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Financing Receivable	$ 3,247	$ 3,344
Current [Member]
Financing Receivable	3,109	3,187
Current [Member] | 700+ [Member]
Financing Receivable	1,419	1,415
Current [Member] | 600-699 [Member]
Financing Receivable	992	990
Current [Member] | Less Than 600 [Member]
Financing Receivable	345	426
Current [Member] | No Score [Member]
Financing Receivable	72	59
Current [Member] | Wyndham Vacation Resorts Asia Pacific [Member]
Financing Receivable	281	297
31 - 60 Days [Member]
Financing Receivable	67	73
31 - 60 Days [Member] | 700+ [Member]
Financing Receivable	10	10
31 - 60 Days [Member] | 600-699 [Member]
Financing Receivable	21	23
31 - 60 Days [Member] | Less Than 600 [Member]
Financing Receivable	29	34
31 - 60 Days [Member] | No Score [Member]
Financing Receivable	3	2
31 - 60 Days [Member] | Wyndham Vacation Resorts Asia Pacific [Member]
Financing Receivable	4	4
61 - 90 Days [Member
Financing Receivable	37	47
61 - 90 Days [Member | 700+ [Member]
Financing Receivable	7	7
61 - 90 Days [Member | 600-699 [Member]
Financing Receivable	11	14
61 - 90 Days [Member | Less Than 600 [Member]
Financing Receivable	17	22
61 - 90 Days [Member | No Score [Member]
Financing Receivable	1	1
61 - 90 Days [Member | Wyndham Vacation Resorts Asia Pacific [Member]
Financing Receivable	1	3
91 - 120 Days [Member]
Financing Receivable	34	37
91 - 120 Days [Member] | 700+ [Member]
Financing Receivable	5	5
91 - 120 Days [Member] | 600-699 [Member]
Financing Receivable	9	10
91 - 120 Days [Member] | Less Than 600 [Member]
Financing Receivable	17	19
91 - 120 Days [Member] | No Score [Member]
Financing Receivable	1	1
91 - 120 Days [Member] | Wyndham Vacation Resorts Asia Pacific [Member]
Financing Receivable	2	2
700+ [Member]
Financing Receivable	1,441	1,437
600-699 [Member]
Financing Receivable	1,033	1,037
Less Than 600 [Member]
Financing Receivable	408	501
No Score [Member]
Financing Receivable	77	63
Wyndham Vacation Resorts Asia Pacific [Member]
Financing Receivable	$ 288	$ 306