Other Assets (Schedule Of Other Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Assets [Abstract]
Property, Plant and Equipment, Gross	$ 709	$ 693
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(474)	(411)
Property, Plant and Equipment, Net	235	282
Restricted cash collections for securitization trusts	3,664	2,983
Deferred Tax Assets, State Taxes	2,040	1,190
Cash reserve deposits held for securitization trusts	402	442
Derivative Asset, Fair Value, Gross Asset	362	2,298
Nonmarketable equity securities	337	303
Cash and securities collateral placed with counterparties	328	1,290
Unamortized Debt Issuance Expense	312	425
Other accounts receivable	290	525
Restricted cash and cash equivalents	205	889
Other Assets, Miscellaneous	1,414	1,281
Other Assets	$ 9,589	$ 11,908