Servicing Activities (Schedule Of Servicing Assets at Fair Value) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Servicing Activities [Abstract]
Estimated fair value, Beginning Balance	$ 0	$ 917	$ 0	$ 952
Servicing Asset at Fair Value, Additions	0	6	0	60
Servicing Asset at Fair Value, Disposals	0	(911)	0	(911)
Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions	0	(4)	0	(32)
Servicing Asset at Fair Value, Other Changes in Fair Value	0	(8)	0	(69)
Estimated fair value, Ending Balance	$ 0	$ 0	$ 0	$ 0