Accounts Receivable and Finance Receivables (Details 4) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Finance receivables held for investment by delinquency aging
Contractual delinquency of 60 plus days as percentage of finance receivables held for investment	7.94%	6.70%
Financing receivable held for investment, recorded investment, less than 31 days past due	$ 1,906	$ 2,239
Financing receivable held for investment, recorded investment, 31 to 60 days past due	53	72
Financing receivable held for investment, recorded investment, 61 days to 90 days past due	71	43
Financing receivable held for investment, recorded investment, over 90 days past due	98	123
Total finance receivables held for investment	2,128	2,477
Captive
Finance receivables held for investment by delinquency aging
Financing receivable held for investment, recorded investment, less than 31 days past due	1,571	1,758
Financing receivable held for investment, recorded investment, 31 to 60 days past due	43	69
Financing receivable held for investment, recorded investment, 61 days to 90 days past due	71	43
Financing receivable held for investment, recorded investment, over 90 days past due	68	75
Total finance receivables held for investment	1,753	1,945
Timeshare
Finance receivables held for investment by delinquency aging
Financing receivable held for investment, recorded investment, less than 31 days past due	171	238
Financing receivable held for investment, recorded investment, 31 to 60 days past due	10	3
Financing receivable held for investment, recorded investment, over 90 days past due	22	40
Total finance receivables held for investment	203	281
Structured Capital
Finance receivables held for investment by delinquency aging
Financing receivable held for investment, recorded investment, less than 31 days past due	149	208
Total finance receivables held for investment	149	208
Other Liquidating
Finance receivables held for investment by delinquency aging
Financing receivable held for investment, recorded investment, less than 31 days past due	15	35
Financing receivable held for investment, recorded investment, over 90 days past due	8	8
Total finance receivables held for investment	$ 23	$ 43