Loans (Balance Of Loans By Portfolio) (Details) (USD $) In Thousands	Jun. 30, 2011		Dec. 31, 2010		Jun. 30, 2010		Dec. 31, 2009
Loans, net of unearned income	$ 16,061,646	[1],[2]	$ 16,782,572		$ 17,154,050	[1],[2]
Allowance for loan losses	524,091	[1],[2]	664,799		781,269	[1],[2]	896,914
Total net loans	15,537,555		16,117,773		16,372,781
Commercial [Member] | Commercial, Financial, and Industrial [Member]
Loans, net of unearned income	7,180,261		7,338,155		7,003,798
Commercial [Member] | Income CRE [Member]
Loans, net of unearned income	1,310,779		1,406,646		1,609,835
Commercial [Member] | Residential CRE [Member]
Loans, net of unearned income	182,857		263,878		396,934
Permanent Mortgage [Member] | Retail [Member]
Loans, net of unearned income	1,015,122		1,086,859		1,018,887
Consumer Real Estate [Member] | Retail [Member]
Loans, net of unearned income	5,383,223		5,617,619		5,935,536
Retail [Member] | Credit Card and Other [Member]
Loans, net of unearned income	295,373		311,924		355,230
Retail [Member] | Restricted Real Estate Loans [Member]
Loans, net of unearned income	694,031		757,491		833,830
Commercial, Financial, and Industrial [Member]
Loans, net of unearned income	7,180,261	[1],[2]			7,003,798	[1],[2]
Allowance for loan losses	206,278	[1],[2]	239,469		277,035	[1],[2]	276,648
Consumer Real Estate [Member]
Loans, net of unearned income	6,032,401	[1],[2]			6,705,850	[1],[2]
Allowance for loan losses	162,655	[1],[2]	192,350		205,752	[1],[2]	215,087
Permanent Mortgage [Member]
Loans, net of unearned income	1,059,975	[1],[2]			1,082,403	[1],[2]
Allowance for loan losses	46,602	[1],[2]	65,009		77,313	[1],[2]	123,897
Credit Card and Other [Member]
Loans, net of unearned income	295,373	[1],[2],[3]			355,230	[1],[2],[3]
Allowance for loan losses	9,089	[1],[2],[3]	12,886	[3]	22,822	[1],[2],[3]	75,558	[3]
Consumer Real Estate Loans [Member]
Loans, net of unearned income	649,200		701,800		770,300
Permanent Mortgage Loans [Member]
Loans, net of unearned income	$ 44,900		$ 55,700		$ 63,500

[1] Q2 2011 and Q2 2010 include $29.9 million and $43.0 million of reserves, respectively, and $649.2 million and $770.3 million of balances in restricted consumer real estate loans, respectively.

[2] Q2 2011 and Q2 2010 include $3.1 million and $7.1 million of reserves, respectively, and $44.9 million and $63.5 million of balances in restricted permanent mortgage loans, respectively.

[3] Includes OTC.