Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 284	$ 249
Cash flows from investing activities:
Payments to Acquire Receivables	3,812	2,870
Principal Collection and Recoveries on Receivables	3,054	2,040
Payments To Acquire Commercial Lending Receivable	(8,405)	(173)
Principal Collections and Recoveries on Commercial Lending Receivables	8,023	46
Purchases of Leased Vehicles	1,176	621
Proceeds from Termination of Leased Vehicles	84	18
Payments to Acquire Businesses, Net of Cash Acquired	(2,107)
Payments to Acquire Property, Plant, and Equipment	(4)	(6)
Increase (Decrease) in Restricted Cash and Investments	(158)	235
Payments for (Proceeds from) Other Investing Activities	(2)	18
Net Cash Provided by (Used in) Investing Activities	(4,503)	(1,313)
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for Loan and Lease Losses	194	110
Cash flows from financing activities:
Proceeds from Lines of Credit	9,085	5,063
Repayments of Lines of Credit	(7,007)	(3,929)
Proceeds from Issuance of Unsecured Debt	3,022
Repayments of Unsecured Debt	(633)
Repayment of acquisition related debt	(1,416)
Proceeds from Contributed Capital	1,300
Payments of Debt Issuance Costs	63	23
Net Cash Provided by (Used in) Financing Activities	4,288	1,111
Net Cash Provided by (Used in) Operating Activities	701	582
Cash and Cash Equivalents, Period Increase (Decrease)	486	380
Effect of Exchange Rate on Cash and Cash Equivalents	(18)
Cash and cash equivalents at beginning of period	1,289	572
Cash and cash equivalents at end of period	$ 1,757	$ 952