Loans (Information By Class Related To Individually Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	$ 481,284		$ 499,925	$ 481,284		$ 499,925
Unpaid Principal Balance	534,337		577,704	534,337		577,704
Related Allowance	82,112		96,205	82,112		96,205
Average Recorded Investment	471,344		493,895	477,100		489,837
Interest Income Recognized	1,829		1,820	3,460		3,526
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	162,704		254,415	162,704		254,415
Unpaid Principal Balance	195,794		332,194	195,794		332,194
Related Allowance	16,754		39,165	16,754		39,165
Average Recorded Investment	160,503		260,832	169,748		269,929
Interest Income Recognized	248		389	477		790
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	318,580		245,510	318,580		245,510
Unpaid Principal Balance	338,543		245,510	338,543		245,510
Related Allowance	65,358		57,040	65,358		57,040
Average Recorded Investment	310,841		233,063	307,352		219,908
Interest Income Recognized	1,581		1,431	2,983		2,736
Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	87,877		182,838	87,877		182,838
Unpaid Principal Balance	111,466		260,569	111,466		260,569
Related Allowance	0		0	0		0
Average Recorded Investment	100,577		190,917	110,315		198,381
Interest Income Recognized	180		342	398		694
Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	46,698			46,698
Unpaid Principal Balance	66,661			66,661
Related Allowance	0			0
Average Recorded Investment	47,859			44,487
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	74,827		71,577	74,827		71,577
Unpaid Principal Balance	84,328		71,625	84,328		71,625
Related Allowance	16,754		39,165	16,754		39,165
Average Recorded Investment	59,926		69,915	59,433		71,548
Interest Income Recognized	68		47	79		96
Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	271,882		245,510	271,882		245,510
Unpaid Principal Balance	271,882		245,510	271,882		245,510
Related Allowance	65,358		57,040	65,358		57,040
Average Recorded Investment	262,982		233,063	262,865		219,908
Interest Income Recognized	1,581		1,431	2,983		2,736
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	47,432		62,122	47,432		62,122
Unpaid Principal Balance	55,225		81,423	55,225		81,423
Related Allowance	0		0	0		0
Average Recorded Investment	54,140		62,858	53,873		68,551
Interest Income Recognized	28		204	108		407
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	24,216		18,948	24,216		18,948
Unpaid Principal Balance	30,555		18,948	30,555		18,948
Related Allowance	2,434		7,629	2,434		7,629
Average Recorded Investment	13,985		15,889	17,258		16,696
Interest Income Recognized	37		33	37		67
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		47,000	6,500		47,000
Unpaid Principal Balance	6,500		47,000	6,500		47,000
Related Allowance	0		0	0		0
Average Recorded Investment	8,250		47,000	15,250		47,000
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	43,700		33,700	43,700		33,700
Unpaid Principal Balance	43,700		33,700	43,700		33,700
Related Allowance	13,768		23,829	13,768		23,829
Average Recorded Investment	41,950		33,700	38,700		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	22,978		51,375	22,978		51,375
Unpaid Principal Balance	33,744		92,153	33,744		92,153
Related Allowance	0		0	0		0
Average Recorded Investment	25,557		57,783	28,389		59,514
Interest Income Recognized	93		76	168		153
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	4,830		1,529	4,830		1,529
Unpaid Principal Balance	6,129		1,577	6,129		1,577
Related Allowance	441		189	441		189
Average Recorded Investment	2,950		1,869	2,954		1,876
Interest Income Recognized	15		14	26		29
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	10,967		22,341	10,967		22,341
Unpaid Principal Balance	15,997		39,993	15,997		39,993
Related Allowance	0		0	0		0
Average Recorded Investment	12,630		23,276	12,803		23,316
Interest Income Recognized	59		62	122		134
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	2,081		17,400	2,081		17,400
Unpaid Principal Balance	3,944		17,400	3,944		17,400
Related Allowance	111		7,518	111		7,518
Average Recorded Investment	1,041		18,457	521		19,276
Interest Income Recognized	16		0	16		0
Home Equity [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	19,709	[1]		19,709	[1]
Unpaid Principal Balance	37,715			37,715
Related Allowance	0			0
Average Recorded Investment	20,383			20,023
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	67,672		57,175	67,672		57,175
Unpaid Principal Balance	67,672		57,175	67,672		57,175
Related Allowance	18,122		13,903	18,122		13,903
Average Recorded Investment	65,369		54,793	63,661		53,547
Interest Income Recognized	464		411	890		784
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	12,193	[1]		12,193	[1]
Unpaid Principal Balance	14,150			14,150
Related Allowance	0			0
Average Recorded Investment	12,761			11,258
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	78,624		67,865	78,624		67,865
Unpaid Principal Balance	78,624		67,865	78,624		67,865
Related Allowance	24,271		18,785	24,271		18,785
Average Recorded Investment	73,549		66,505	74,157		69,036
Interest Income Recognized	404		276	689		541
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	14,796			14,796
Unpaid Principal Balance	14,796			14,796
Related Allowance	0			0
Average Recorded Investment	14,715			13,206
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	124,869		119,537	124,869		119,537
Unpaid Principal Balance	124,869		119,537	124,869		119,537
Related Allowance	22,725		24,131	22,725		24,131
Average Recorded Investment	123,332		110,785	124,280		96,300
Interest Income Recognized	705		734	1,388		1,390
Credit Card Other [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	717		933	717		933
Unpaid Principal Balance	717		933	717		933
Related Allowance	240		221	240		221
Average Recorded Investment	732		980	767		1,025
Interest Income Recognized	$ 8		$ 10	$ 16		$ 21

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