Other Assets (Schedule Of Other Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Other Assets [Abstract]
Property, Plant and Equipment, Gross	$ 760	$ 775
Accumulated depreciation	(552)	(550)
Property, Plant and Equipment, Net	208	225
Restricted cash collections for securitization trusts	1,829	2,221
Deferred Tax Assets, Net	1,639	1,812
Nonmarketable equity securities	359	271
Cash reserve deposits held for securitization trusts	259	303
Unamortized Debt Issuance Expense	234	238
Derivative Asset, Fair Value, Gross Asset	214	263
Other accounts receivable	213	298
Cash and securities collateral placed with counterparties	98	236
Other Assets, Miscellaneous	1,073	1,435
Other Assets	$ 6,126	$ 7,302