Loans (Rollforward Of The Allowance For Loan Losses By Portfolio Segment) (Details) (USD $) In Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010		Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	$ 524,091		$ 781,269		$ 664,799		$ 896,914
Adjustment due to amendments of ASC 810							24,578
Charge-offs	(120,655)		(125,801)		(291,351)		(465,744)
Recoveries	14,209		14,431		42,197		39,151
Provision	32,000		50,000		34,000		225,000
Ending Balance	449,645	[1],[2]	719,899	[1],[2]	449,645	[1],[2]	719,899	[1],[2]
Allowance - individually evaluated for impairment	101,541		101,228		101,541		101,228
Allowance - collectively evaluated for impairment	348,104		618,671		348,104		618,671
Loans, net of unearned income	16,241,402	[1],[2]	17,059,489	[1],[2]	16,241,402	[1],[2]	17,059,489	[1],[2]	16,782,572
Individually evaluated for impairment	502,359		602,119		502,359		602,119
Collectively evaluated for impairment	15,739,043		16,457,370		15,739,043		16,457,370
Commercial, Financial, And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	206,278		277,035		239,469		276,648
Charge-offs	(17,348)		(25,974)		(41,822)		(80,912)
Recoveries	4,716		2,401		13,175		9,612
Provision	(11,356)		6,320		(28,532)		54,434
Ending Balance	182,290	[1],[2]	259,782	[1],[2]	182,290	[1],[2]	259,782	[1],[2]
Allowance - individually evaluated for impairment	46,500		52,661		46,500		52,661
Allowance - collectively evaluated for impairment	135,790		207,121		135,790		207,121
Loans, net of unearned income	7,705,749	[1],[2]	7,336,986	[1],[2]	7,705,749	[1],[2]	7,336,986	[1],[2]
Individually evaluated for impairment	210,644		208,699		210,644		208,699
Collectively evaluated for impairment	7,495,105		7,128,287		7,495,105		7,128,287
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	99,467		198,347		155,085		205,724
Charge-offs	(10,702)		(15,276)		(34,792)		(104,584)
Recoveries	2,673		3,021		8,118		8,814
Provision	(26,287)		(3,655)		(63,260)		72,483
Ending Balance	65,151	[1],[2]	182,437	[1],[2]	65,151	[1],[2]	182,437	[1],[2]
Allowance - individually evaluated for impairment	7,998		22,171		7,998		22,171
Allowance - collectively evaluated for impairment	57,153		160,266		57,153		160,266
Loans, net of unearned income	1,428,340	[1],[2]	1,842,667	[1],[2]	1,428,340	[1],[2]	1,842,667	[1],[2]
Individually evaluated for impairment	130,543		262,854		130,543		262,854
Collectively evaluated for impairment	1,297,797		1,579,813		1,297,797		1,579,813
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	162,655		205,752		192,350		215,087
Adjustment due to amendments of ASC 810							16,106
Charge-offs	(39,122)		(62,822)		(130,886)		(177,223)
Recoveries	4,052		5,482		12,488		13,475
Provision	34,485		46,488		88,118		127,455
Ending Balance	162,070	[1],[2]	194,900	[1],[2]	162,070	[1],[2]	194,900	[1],[2]
Allowance - individually evaluated for impairment	40,509		16,395		40,509		16,395
Allowance - collectively evaluated for impairment	121,561		178,505		121,561		178,505
Loans, net of unearned income	5,928,310	[1],[2]	6,523,513	[1],[2]	5,928,310	[1],[2]	6,523,513	[1],[2]
Individually evaluated for impairment	112,124		57,714		112,124		57,714
Collectively evaluated for impairment	5,816,186		6,465,799		5,816,186		6,465,799
Permanent Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	46,602		77,313		65,009		123,897
Adjustment due to amendments of ASC 810							8,472
Charge-offs	(48,556)		(14,602)		(69,340)		(61,505)
Recoveries	1,728		479		5,262		1,255
Provision	31,888		1,673		30,731		(7,256)
Ending Balance	31,662	[1],[2]	64,863	[1],[2]	31,662	[1],[2]	64,863	[1],[2]
Allowance - individually evaluated for impairment	5,692		9,756		5,692		9,756
Allowance - collectively evaluated for impairment	25,970		55,107		25,970		55,107
Loans, net of unearned income	880,459	[1],[2]	1,029,958	[1],[2]	880,459	[1],[2]	1,029,958	[1],[2]
Individually evaluated for impairment	47,910		72,322		47,910		72,322
Collectively evaluated for impairment	832,549		957,636		832,549		957,636
Credit Card And Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	9,089	[3]	22,822	[3]	12,886	[3]	75,558	[3]
Charge-offs	(4,927)	[3]	(7,127)	[3]	(14,511)	[3]	(41,520)	[3]
Recoveries	1,040	[3]	3,048	[3]	3,154	[3]	5,995	[3]
Provision	3,270	[3]	(826)	[3]	6,943	[3]	(22,116)	[3]
Ending Balance	8,472	[1],[2],[3]	17,917	[1],[2],[3]	8,472	[1],[2],[3]	17,917	[1],[2],[3]
Allowance - individually evaluated for impairment	842	[3]	245	[3]	842	[3]	245	[3]
Allowance - collectively evaluated for impairment	7,630	[3]	17,672	[3]	7,630	[3]	17,672	[3]
Loans, net of unearned income	298,544	[1],[2],[3]	326,365	[1],[2],[3]	298,544	[1],[2],[3]	326,365	[1],[2],[3]
Individually evaluated for impairment	1,138	[3]	530	[3]	1,138	[3]	530	[3]
Collectively evaluated for impairment	297,406	[3]	325,835	[3]	297,406	[3]	325,835	[3]
Restricted Consumer Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Balance	26,900		41,900		26,900		41,900
Loans, net of unearned income	623,300		735,800		623,300		735,800		701,800
Restricted Permanent Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Balance	5,500		5,900		5,500		5,900
Loans, net of unearned income	$ 42,400		$ 60,700		$ 42,400		$ 60,700		$ 55,700

[1] Q3 2011 and Q3 2010 include $26.9 million and $41.9 million of reserves, respectively, and $623.3 million and $735.8 million of balances in restricted consumer real estate loans, respectively.

[2] Q3 2011 and Q3 2010 include $5.5 million and $5.9 million of reserves, respectively, and $42.4 million and $60.7 million of balances in restricted permanent mortgage loans, respectively.

[3] Includes OTC.