Loans (Information By Class Related To Individually Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	$ 378,295		$ 445,032
Unpaid Principal Balance	445,119		517,602
Related Allowance	69,782		78,867
Average Recorded Investment	391,004		458,291
Interest Income Recognized	1,681		1,631
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	82,104		158,304
Unpaid Principal Balance	104,853		190,439
Related Allowance	6,682		15,619
Average Recorded Investment	96,696		168,068
Interest Income Recognized	244		229
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	296,191		286,728
Unpaid Principal Balance	340,266		327,163
Related Allowance	63,100		63,248
Average Recorded Investment	294,308		290,223
Interest Income Recognized	1,437		1,402
Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	22,630		113,279
Unpaid Principal Balance	32,177		145,414
Related Allowance	0		0
Average Recorded Investment	32,140		123,016
Interest Income Recognized	0		218
Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	34,405		45,158
Unpaid Principal Balance	62,161		71,813
Related Allowance	0		0
Average Recorded Investment	35,350		42,514
Interest Income Recognized	0		0
Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	59,474		45,025
Unpaid Principal Balance	72,676		45,025
Related Allowance	6,682		15,619
Average Recorded Investment	64,556		45,052
Interest Income Recognized	244		11
Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	261,786		241,570
Unpaid Principal Balance	278,105		255,350
Related Allowance	63,100		63,248
Average Recorded Investment	258,958		247,709
Interest Income Recognized	1,437		1,402
General C I [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	14,130		60,849
Unpaid Principal Balance	15,648		73,873
Related Allowance	0		0
Average Recorded Investment	20,378		60,581
Interest Income Recognized	0		80
General C I [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	27,723		3,754
Unpaid Principal Balance	33,911		3,754
Related Allowance	1,201		1,159
Average Recorded Investment	22,232		7,027
Interest Income Recognized	79		0
TRUPs [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	0		10,000
Unpaid Principal Balance	0		10,000
Related Allowance	0		0
Average Recorded Investment	3,250		17,000
Interest Income Recognized	0		0
TRUPs [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	13,550		40,200
Unpaid Principal Balance	13,550		40,200
Related Allowance	3,986		14,304
Average Recorded Investment	23,580		36,950
Interest Income Recognized	0		0
Income C R E [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	8,500		28,136
Unpaid Principal Balance	16,529		40,034
Related Allowance	0		0
Average Recorded Investment	8,512		30,968
Interest Income Recognized	0		75
Income C R E [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	11,821		1,071
Unpaid Principal Balance	13,540		1,071
Related Allowance	783		156
Average Recorded Investment	12,097		1,075
Interest Income Recognized	102		11
Residential C R E [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment			14,294
Unpaid Principal Balance			21,507
Related Allowance			0
Average Recorded Investment			14,467
Interest Income Recognized			63
Residential C R E [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	6,380
Unpaid Principal Balance	11,675
Related Allowance	712
Average Recorded Investment	6,647
Interest Income Recognized	63
Home Equity [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	16,151	[1]	21,058	[1]
Unpaid Principal Balance	37,723		41,036
Related Allowance	0		0
Average Recorded Investment	16,488		20,698
Interest Income Recognized	0		0
Home Equity [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	73,287		63,066
Unpaid Principal Balance	74,730		63,474
Related Allowance	17,080		16,559
Average Recorded Investment	71,792		61,358
Interest Income Recognized	434		426
R E Installment Loans [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	10,400	[1]	13,329	[1]
Unpaid Principal Balance	13,360		16,143
Related Allowance	0		0
Average Recorded Investment	10,705		11,825
Interest Income Recognized	0		0
R E Installment Loans [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	73,738		68,474
Unpaid Principal Balance	74,645		69,136
Related Allowance	26,573		24,219
Average Recorded Investment	73,015		69,082
Interest Income Recognized	269		285
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	7,854	[1]	10,771	[1]
Unpaid Principal Balance	11,078		14,634
Related Allowance	0		0
Average Recorded Investment	8,157		9,991
Interest Income Recognized	0		0
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	113,989		109,283
Unpaid Principal Balance	127,958		121,993
Related Allowance	19,211		22,239
Average Recorded Investment	113,493		116,487
Interest Income Recognized	723		683
Credit Card Other [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	772		747
Unpaid Principal Balance	772		747
Related Allowance	236		231
Average Recorded Investment	658		782
Interest Income Recognized	$ 11		$ 8

[1] All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.