Other Operating Expenses (Schedule Of Other Operating Expenses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Expenses [Abstract]
Insurance Commissions	$ 90	$ 92
Communications and Information Technology	85	71
Marketing and Advertising Expense	29	35
Lease And Loan Administration	28	81
Professional Fees	28	48
Regulatory and licensing fees	27	33
Depreciation, Nonproduction	19	20
Vehicle remarketing and repossession	18	14
Occupancy, Net	11	11
State And Local Non-Income Taxes Amount	10	10
Mortgage Representation And Warranty, Net	1	83
Other Cost and Expense, Operating	45	60
Total other operating expenses	$ 391	$ 558