Securitizations And Variable Interest Entities ("VIEs") (Schedule Of Delinquencies Net Credit Losses And Components Of Loan And Lease Sales) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010	Dec. 31, 2010
Securitizations And Variable Interest Entities [Line Items]
Principal Balance	$ 9,702,694			$ 9,635,745
Risk Assets	207,104	[1]		241,494	[1]
Net Credit Losses (Recoveries)	89,531		109,886
Loans And Leases Held In Portfolio [Member]
Securitizations And Variable Interest Entities [Line Items]
Principal Balance	9,503,538			9,417,801
Risk Assets	202,696	[1]		235,972	[1]
Net Credit Losses (Recoveries)	88,874		109,253
Home Equity Loans [Member]
Securitizations And Variable Interest Entities [Line Items]
Principal Balance	199,131			215,396
Risk Assets	4,399	[1]		5,511	[1]
Net Credit Losses (Recoveries)	653		636
Leases Serviced For Others [Member]
Securitizations And Variable Interest Entities [Line Items]
Principal Balance	25			2,548
Risk Assets	9	[1]		11	[1]
Net Credit Losses (Recoveries)	$ 4		$ (3)

[1] Includes nonaccrual loans and leases, foreclosed real estate, and loans and leases past due 90 days and still accruing.