Loans (Information By Class Related To Individually Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	$ 451,326		$ 501,239		$ 451,326		$ 501,239
Unpaid Principal Balance	515,220		607,546		515,220		607,546
Related Allowance	74,567		81,709		74,567		81,709
Average Recorded Investment	466,304		483,433		468,443		473,093
Interest Income Recognized	1,811		1,754		5,271		5,280
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	136,241		225,744		136,241		225,744
Unpaid Principal Balance	169,976		284,753		169,976		284,753
Related Allowance	17,283		28,855		17,283		28,855
Average Recorded Investment	149,472		240,081		159,348		255,595
Interest Income Recognized	209		355		686		1,145
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	315,085		275,495		315,085		275,495
Unpaid Principal Balance	345,244		322,793		345,244		322,793
Related Allowance	57,284		52,854		57,284		52,854
Average Recorded Investment	316,832		243,352		309,095		217,498
Interest Income Recognized	1,602		1,399		4,585		4,135
Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	53,632		170,056		53,632		170,056
Unpaid Principal Balance	74,578		227,271		74,578		227,271
Related Allowance	0		0		0		0
Average Recorded Investment	70,754		176,448		98,116		191,991
Interest Income Recognized	0		308		398		1,002
Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	44,486		35,064		44,486		35,064
Unpaid Principal Balance	70,500		81,525		70,500		81,525
Related Allowance	0		0		0		0
Average Recorded Investment	45,592		381		46,366		128
Interest Income Recognized	0		0		0		0
Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	82,609		55,688		82,609		55,688
Unpaid Principal Balance	95,398		57,482		95,398		57,482
Related Allowance	17,283		28,855		17,283		28,855
Average Recorded Investment	78,718		63,633		61,232		63,604
Interest Income Recognized	209		47		288		143
Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	270,599		240,431		270,599		240,431
Unpaid Principal Balance	274,744		241,268		274,744		241,268
Related Allowance	57,284		52,854		57,284		52,854
Average Recorded Investment	271,240		242,971		262,729		217,370
Interest Income Recognized	1,602		1,399		4,585		4,135
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	34,193		59,215		34,193		59,215
Unpaid Principal Balance	43,677		75,587		43,677		75,587
Related Allowance	0		0		0		0
Average Recorded Investment	40,812		60,669		51,845		67,098
Interest Income Recognized	0		142		108		549
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	31,672		20,580		31,672		20,580
Unpaid Principal Balance	38,075		22,374		38,075		22,374
Related Allowance	2,447		7,351		2,447		7,351
Average Recorded Investment	27,944		19,764		16,319		17,512
Interest Income Recognized	71		33		108		100
TRUPs [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	6,500		45,892		6,500		45,892
Unpaid Principal Balance	6,500		45,892		6,500		45,892
Related Allowance	0		0		0		0
Average Recorded Investment	6,500		46,446		10,583		46,446
Interest Income Recognized	0		0		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	33,610		33,700		33,610		33,700
Unpaid Principal Balance	33,610		33,700		33,610		33,700
Related Allowance	13,255		21,321		13,255		21,321
Average Recorded Investment	38,655		33,700		39,185		33,700
Interest Income Recognized	0		0		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	12,939		44,956		12,939		44,956
Unpaid Principal Balance	24,219		69,684		24,219		69,684
Related Allowance	0		0		0		0
Average Recorded Investment	17,959		48,166		24,828		56,305
Interest Income Recognized	0		96		168		249
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	10,274		1,408		10,274		1,408
Unpaid Principal Balance	11,330		1,408		11,330		1,408
Related Allowance	765		183		765		183
Average Recorded Investment	7,552		1,469		3,859		1,815
Interest Income Recognized	70		14		96		43
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	0		19,993		0		19,993
Unpaid Principal Balance	182		36,108		182		36,108
Related Allowance	0		0		0		0
Average Recorded Investment	5,483		21,167		10,860		22,142
Interest Income Recognized	0		70		122		204
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	7,053		0		7,053		0
Unpaid Principal Balance	12,383		0		12,383		0
Related Allowance	816		0		816		0
Average Recorded Investment	4,567		8,700		1,869		10,577
Interest Income Recognized	68		0		84		0
Home Equity [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	18,323	[1]	13,086	[1]	18,323	[1]	13,086	[1]
Unpaid Principal Balance	40,867		40,222		40,867		40,222
Related Allowance	0		0		0		0
Average Recorded Investment	19,016		142		20,032		48
Interest Income Recognized	0		0		0		0
Home Equity [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	68,903		57,020		68,903		57,020
Unpaid Principal Balance	71,708		57,422		71,708		57,422
Related Allowance	15,702		12,980		15,702		12,980
Average Recorded Investment	68,287		57,097		65,005		53,469
Interest Income Recognized	483		389		1,373		1,173
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	11,632	[1]	8,696	[1]	11,632	[1]	8,696	[1]
Unpaid Principal Balance	15,102		24,263		15,102		24,263
Related Allowance	0		0		0		0
Average Recorded Investment	11,913		95		12,166		32
Interest Income Recognized	0		0		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	71,543		66,679		71,543		66,679
Unpaid Principal Balance	72,686		67,053		72,686		67,053
Related Allowance	22,724		18,649		22,724		18,649
Average Recorded Investment	75,084		67,272		72,571		68,444
Interest Income Recognized	336		294		1,025		835
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	14,531	[1]	13,282	[1]	14,531	[1]	13,282	[1]
Unpaid Principal Balance	14,531		17,040		14,531		17,040
Related Allowance	0		0		0		0
Average Recorded Investment	14,663		144		14,168		48
Interest Income Recognized	0		0		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	129,505		115,819		129,505		115,819
Unpaid Principal Balance	129,702		115,880		129,702		115,880
Related Allowance	18,646		20,988		18,646		20,988
Average Recorded Investment	127,187		117,679		124,421		94,442
Interest Income Recognized	776		714		2,164		2,104
Credit Card Other [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	648		913		648		913
Unpaid Principal Balance	648		913		648		913
Related Allowance	212		237		212		237
Average Recorded Investment	682		923		732		1,015
Interest Income Recognized	$ 7		$ 2		$ 23		$ 23

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