Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Statement of Cash Flows [Abstract]
Net Cash Provided by (Used in) Operating Activities	$ 1,400	$ 1,254
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Purchases of consumer finance receivables, net	(10,850)	(6,310)
Principal Collection and Recoveries on Receivables	(8,124)	(5,099)
Net funding of commercial finance receivables	(408)	(619)
Purchases of leased vehicles, net	(3,227)	(1,746)
Proceeds from termination of leased vehicles	395	142
Payments to Acquire Businesses, Net of Cash Acquired	(46)	(2,107)
Purchases of property and equipment	(37)	(10)
Change in restricted cash	(187)	(74)
Change in other assets	(2)	(22)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(6,238)	(5,647)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Net increase in debt (original maturities less than three months)	(913)	0
Borrowings and issuance of secured debt	15,847	11,676
Payments on secured debt	(13,568)	(9,009)
Proceeds from Issuance of Unsecured Debt	5,403	4,198
Repayments of Unsecured Debt	(1,339)	(1,817)
Repayment of acquisition related debt	0	(1,416)
Proceeds from Contributed Capital	0	1,300
Payments of Debt Issuance Costs	(107)	(69)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	5,323	4,863
Cash and Cash Equivalents, Period Increase (Decrease)	485	470
Effect of Exchange Rate on Cash and Cash Equivalents	(42)	(3)
Cash and cash equivalents at beginning of period	1,074	1,289
Cash and cash equivalents at end of period	$ 1,517	$ 1,756