Guarantor Consolidating Financial Statements Guarantor Cash Flow (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Net Cash Provided by (Used in) Operating Activities	$ 1,154	$ 931
Payments to Acquire Receivables	(6,321)	(4,354)
Principal Collection and Recoveries on Receivables	5,099	3,050
Proceeds from sale of consumer finance receivables, net
Payments To Acquire Commercial Lending Receivable	(16,193)	(582)
Principal Collections and Recoveries on Commercial Lending Receivables	15,685	300
Proceeds from sale of commercial finance receivables, net
Payments to Acquire Leases Held-for-investment	(1,746)	(857)
Proceeds from Leases Held-for-investment	142	33
Payments to Acquire Businesses, Net of Cash Acquired	(2,107)
Payments to Acquire Property, Plant, and Equipment	(10)	(11)
Increase (Decrease) in Restricted Cash and Investments	(74)	219
Payments for (Proceeds from) Other Investing Activities	(22)	6
Investment in Affiliates - Net Change
Net Cash Provided by (Used in) Investing Activities	(5,547)	(2,196)
Proceeds from Lines of Credit	11,676	6,600
Repayments of Lines of Credit	(9,009)	(5,059)
Proceeds from Issuance of Unsecured Debt	4,198	1,000
Repayments of Unsecured Debt	(1,817)
Proceeds from Related Party Debt	1,100
Repayments of Related Party Debt	(1,100)
Repayment of acquisition related debt	(1,416)
Proceeds from Contributed Capital	1,300
Payments of Debt Issuance Costs	(69)	(43)
Extinguishment of Debt, Amount		(1)
Proceeds from Contributions from Parent
Increase (Decrease) Due from Affiliates
Net Cash Provided by (Used in) Financing Activities	4,863	2,497
Cash and Cash Equivalents, Period Increase (Decrease)	470	1,232
Effect of Exchange Rate on Cash and Cash Equivalents	(3)	2
Cash and Cash Equivalents, at Carrying Value	1,756	1,806
Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities	286	166
Payments to Acquire Receivables	(3,971)	(4,354)
Principal Collection and Recoveries on Receivables
Proceeds from sale of consumer finance receivables, net	4,207	4,116
Payments To Acquire Commercial Lending Receivable	(3,395)	(582)
Principal Collections and Recoveries on Commercial Lending Receivables	1,069	300
Proceeds from sale of commercial finance receivables, net	2,593
Payments to Acquire Businesses, Net of Cash Acquired	(863)
Payments to Acquire Property, Plant, and Equipment	(1)	(2)
Payments for (Proceeds from) Other Investing Activities	(44)	29
Investment in Affiliates - Net Change	(350)	2,177
Net Cash Provided by (Used in) Investing Activities	(755)	1,684
Increase (Decrease) Due from Affiliates	467	(608)
Net Cash Provided by (Used in) Financing Activities	467	(608)
Cash and Cash Equivalents, Period Increase (Decrease)	(2)	1,242
Cash and Cash Equivalents, at Carrying Value	1,250	1,742
Non-Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities	762	529
Payments to Acquire Receivables	(6,557)	(4,116)
Principal Collection and Recoveries on Receivables	5,099	3,050
Payments To Acquire Commercial Lending Receivable	(15,391)
Principal Collections and Recoveries on Commercial Lending Receivables	14,616
Payments to Acquire Leases Held-for-investment	(1,746)	(857)
Proceeds from Leases Held-for-investment	142	33
Payments to Acquire Businesses, Net of Cash Acquired	440
Payments to Acquire Property, Plant, and Equipment	(9)	(9)
Increase (Decrease) in Restricted Cash and Investments	(74)	219
Payments for (Proceeds from) Other Investing Activities	22	(2)
Net Cash Provided by (Used in) Investing Activities	(3,458)	(1,682)
Proceeds from Lines of Credit	11,676	6,600
Repayments of Lines of Credit	(9,009)	(5,059)
Proceeds from Issuance of Unsecured Debt	1,698
Repayments of Unsecured Debt	(1,817)
Repayment of acquisition related debt	(1,416)
Proceeds from Contributed Capital	382
Payments of Debt Issuance Costs	(40)	(31)
Proceeds from Contributions from Parent		(2,187)
Increase (Decrease) Due from Affiliates	1,697	1,810
Net Cash Provided by (Used in) Financing Activities	3,171	1,133
Cash and Cash Equivalents, Period Increase (Decrease)	475	(20)
Effect of Exchange Rate on Cash and Cash Equivalents	(6)	12
Cash and Cash Equivalents, at Carrying Value	506	64
Consolidation, Eliminations [Member]
Payments to Acquire Receivables	4,207	(4,116)
Proceeds from sale of consumer finance receivables, net	(4,207)	(4,116)
Payments To Acquire Commercial Lending Receivable	2,593
Proceeds from sale of commercial finance receivables, net	(2,593)
Payments to Acquire Businesses, Net of Cash Acquired	863
Investment in Affiliates - Net Change	379	(2,177)
Net Cash Provided by (Used in) Investing Activities	1,242	(2,177)
Proceeds from Contributed Capital	(382)
Proceeds from Contributions from Parent		2,187
Increase (Decrease) Due from Affiliates	(863)
Net Cash Provided by (Used in) Financing Activities	(1,245)	2,187
Cash and Cash Equivalents, Period Increase (Decrease)	(3)	10
Effect of Exchange Rate on Cash and Cash Equivalents	3	(10)
Parent Company [Member]
Net Cash Provided by (Used in) Operating Activities	106	236
Payments to Acquire Businesses, Net of Cash Acquired	(2,547)
Payments for (Proceeds from) Other Investing Activities		(21)
Investment in Affiliates - Net Change	(29)
Net Cash Provided by (Used in) Investing Activities	(2,576)	(21)
Proceeds from Issuance of Unsecured Debt	2,500	1,000
Proceeds from Related Party Debt	1,100
Repayments of Related Party Debt	(1,100)
Proceeds from Contributed Capital	1,300
Payments of Debt Issuance Costs	(29)	(12)
Extinguishment of Debt, Amount		(1)
Increase (Decrease) Due from Affiliates	(1,301)	(1,202)
Net Cash Provided by (Used in) Financing Activities	$ 2,470	$ (215)