Other Assets (Schedule Of Other Assets) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Other Assets [Abstract]
Property, Plant and Equipment, Gross	$ 740	$ 709
Accumulated depreciation	(511)	(474)
Property, Plant and Equipment, Net	229	235
Deferred Tax Assets, State Taxes	1,825	2,040
Restricted cash collections for securitization trusts	1,783	3,664
Other accounts receivable	349	290
Nonmarketable equity securities	307	337
Cash reserve deposits held for securitization trusts	297	402
Unamortized Debt Issuance Expense	255	312
Derivative Asset, Fair Value, Gross Asset	235	362
Cash and securities collateral placed with counterparties	194	328
Restricted cash and cash equivalents	132	205
Other Assets, Miscellaneous	1,152	1,414
Other Assets	$ 6,758	$ 9,589