Fair Value Of Assets And Liabilities (Summary Of Book Value And Estimated Fair Value Of Financial Instruments) (Details) (USD $)	Sep. 30, 2012		Dec. 31, 2011	Sep. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	$ 16,242,039,000		$ 16,012,776,000	$ 15,791,757,000
Trading securities	1,204,366,000		988,217,000	1,227,197,000
Loans held-for-sale	410,550,000		413,897,000	386,147,000
Securities available for sale	3,123,629,000	[1]	3,066,272,000	3,327,846,000	[2]
Total other assets	357,326,000			409,173,000
Cash and Due from Banks	355,978,000		384,667,000	339,895,000
Capital markets receivables	791,190,000		164,987,000	521,198,000
Total assets	25,739,830,000		24,789,384,000	25,571,469,000
Total deposits	16,228,111,000		16,213,009,000	15,698,255,000
Trading liabilities	516,970,000		347,285,000	471,120,000
Other Short-term Borrowings	856,958,000		172,550,000	621,998,000
Term borrowings	2,263,238,000		2,481,660,000	2,509,804,000
Capital markets payables	574,201,000		164,708,000	509,164,000
Total liabilities	23,207,942,000		22,104,747,000	22,828,239,000
Carrying Reported Amount Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	16,242,039,000			15,791,757,000
Short-term financial assets				1,077,937,000
Total interest-bearing cash	440,916,000
Total federal funds sold & securities purchased under agreements to resell	529,688,000
Total short-term financial assets	970,604,000
Trading securities	1,204,366,000	[3]		1,227,197,000
Loans held-for-sale	410,550,000	[3]		386,147,000
Securities available for sale	3,123,629,000	[3],[4]		3,327,846,000
Derivative assets	334,025,000	[3]		384,759,000
Other assets				99,543,000
Tax credit investments	76,822,000
Deferred compensation assets	23,301,000
Total other assets	100,123,000
Nonearning assets				952,045,000
Cash and Due from Banks	355,978,000
Capital markets receivables	791,190,000
Accrued interest receivable	85,042,000
Total nonearning assets	1,232,210,000
Total assets	23,617,546,000
Defined maturity	1,582,097,000			1,721,882,000
Undefined maturity	14,646,014,000			13,976,373,000
Total deposits	16,228,111,000			15,698,255,000
Trading liabilities	516,970,000	[3]		471,120,000
Short-term financial liabilities				2,723,951,000
Total federal funds purchased & securities sold under agreements to repurchase	1,794,176,000
Other Short-term Borrowings	856,958,000
Total short-term financial liabilities	2,651,134,000
Term borrowings				2,509,806,000
Real estate investment trust-preferred	45,743,000
Term borrowings - new market tax credit investment	15,301,000
Borrowings secured by residential real estate	415,975,000
Other long term borrowings	1,786,219,000
Total term borrowings	2,263,238,000
Derivative liabilities	225,084,000	[3]		264,904,000
Other noninterest-bearing liabilities				554,302,000
Capital markets payables	574,201,000
Accrued interest payable	43,184,000
Total other noninterest-bearing liabilities	617,385,000
Total liabilities	22,501,922,000
Carrying Reported Amount Fair Value Disclosure [Member] | Commercial Financial And Industrial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	8,359,909,000
Carrying Reported Amount Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Income C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	1,138,348,000
Carrying Reported Amount Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Residential C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	64,157,000
Carrying Reported Amount Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	5,619,956,000	[5]
Carrying Reported Amount Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	779,954,000	[5]
Carrying Reported Amount Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	279,715,000
Estimate Of Fair Value Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	15,574,198,000			15,083,851,000
Short-term financial assets				1,077,937,000
Total interest-bearing cash	440,916,000
Total federal funds sold & securities purchased under agreements to resell	529,688,000
Total short-term financial assets	970,604,000
Trading securities	1,204,366,000	[3]		1,227,197,000
Loans held-for-sale	410,550,000	[3]		386,147,000
Securities available for sale	3,123,629,000	[3],[4]		3,327,846,000
Derivative assets	334,025,000	[3]		384,759,000
Other assets				99,543,000
Tax credit investments	76,822,000
Deferred compensation assets	23,301,000
Total other assets	100,123,000
Nonearning assets				952,045,000
Cash and Due from Banks	355,978,000
Capital markets receivables	791,190,000
Accrued interest receivable	85,042,000
Total nonearning assets	1,232,210,000
Total assets	22,949,705,000
Defined maturity	1,618,019,000			1,770,342,000
Undefined maturity	14,646,014,000			13,976,373,000
Total deposits	16,264,033,000			15,746,715,000
Trading liabilities	516,970,000	[3]		471,120,000
Short-term financial liabilities				2,723,951,000
Total federal funds purchased & securities sold under agreements to repurchase	1,794,176,000
Other Short-term Borrowings	856,958,000
Total short-term financial liabilities	2,651,134,000
Term borrowings				2,222,021,000
Real estate investment trust-preferred	42,300,000
Term borrowings - new market tax credit investment	16,280,000
Borrowings secured by residential real estate	353,578,000
Other long term borrowings	1,716,741,000
Total term borrowings	2,128,899,000
Derivative liabilities	225,084,000	[3]		264,904,000
Other noninterest-bearing liabilities				554,302,000
Capital markets payables	574,201,000
Accrued interest payable	43,184,000
Total other noninterest-bearing liabilities	617,385,000
Total liabilities	22,403,505,000
Loan commitments	1,571,000			1,419,000
Standby and other commitments	5,333,000			6,370,000
Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Financial And Industrial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	8,138,108,000
Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Income C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	1,083,886,000
Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Residential C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	62,734,000
Estimate Of Fair Value Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	5,287,039,000	[5]
Estimate Of Fair Value Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	722,087,000	[5]
Estimate Of Fair Value Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	280,344,000
Contractual Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments	7,890,786,000			7,417,606,000
Standby and other commitments	371,899,000			373,335,000
Fair Value Inputs Level1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets	38,163,000			61,845,000
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Total interest-bearing cash	440,916,000
Total federal funds sold & securities purchased under agreements to resell	0
Total short-term financial assets	440,916,000
Trading securities	0	[3]
Loans held-for-sale	0	[3]
Securities available for sale	13,794,000	[3]
Derivative assets	14,862,000	[3]
Tax credit investments	0
Deferred compensation assets	23,301,000
Total other assets	23,301,000
Cash and Due from Banks	355,978,000
Capital markets receivables	0
Accrued interest receivable	0
Total nonearning assets	355,978,000
Total assets	848,851,000
Defined maturity	0
Undefined maturity	0
Total deposits	0
Trading liabilities	0	[3]
Total federal funds purchased & securities sold under agreements to repurchase	0
Other Short-term Borrowings	0
Total short-term financial liabilities	0
Real estate investment trust-preferred	0
Term borrowings - new market tax credit investment	0
Borrowings secured by residential real estate	0
Other long term borrowings	0
Total term borrowings	0
Derivative liabilities	12,424,000	[3]
Capital markets payables	0
Accrued interest payable	0
Total other noninterest-bearing liabilities	0
Total liabilities	12,424,000
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Financial And Industrial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Income C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Residential C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0	[5]
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0	[5]
Fair Value Inputs Level1 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets	319,163,000			347,328,000
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Total interest-bearing cash	0
Total federal funds sold & securities purchased under agreements to resell	529,688,000
Total short-term financial assets	529,688,000
Trading securities	1,190,622,000	[3]
Loans held-for-sale	48,425,000	[3]
Securities available for sale	2,897,657,000	[3]
Derivative assets	319,163,000	[3]
Tax credit investments	0
Deferred compensation assets	0
Total other assets	0
Cash and Due from Banks	0
Capital markets receivables	791,190,000
Accrued interest receivable	85,042,000
Total nonearning assets	876,232,000
Total assets	5,861,787,000
Defined maturity	1,618,019,000
Undefined maturity	14,646,014,000
Total deposits	16,264,033,000
Trading liabilities	516,970,000	[3]
Total federal funds purchased & securities sold under agreements to repurchase	1,794,176,000
Other Short-term Borrowings	845,373,000
Total short-term financial liabilities	2,639,549,000
Real estate investment trust-preferred	0
Term borrowings - new market tax credit investment	0
Borrowings secured by residential real estate	0
Other long term borrowings	1,716,741,000
Total term borrowings	1,716,741,000
Derivative liabilities	210,320,000	[3]
Capital markets payables	574,201,000
Accrued interest payable	43,184,000
Total other noninterest-bearing liabilities	617,385,000
Total liabilities	21,964,998,000
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Financial And Industrial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Income C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Residential C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0	[5]
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0	[5]
Fair Value Inputs Level2 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	0
Fair Value Inputs Level3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets	0			0
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	15,574,198,000
Total interest-bearing cash	0
Total federal funds sold & securities purchased under agreements to resell	0
Total short-term financial assets	0
Trading securities	13,744,000	[3]
Loans held-for-sale	362,125,000	[3]
Securities available for sale	212,178,000	[3],[4]
Derivative assets	0	[3]
Tax credit investments	76,822,000
Deferred compensation assets	0
Total other assets	76,822,000
Cash and Due from Banks	0
Capital markets receivables	0
Accrued interest receivable	0
Total nonearning assets	0
Total assets	16,239,067,000
Defined maturity	0
Undefined maturity	0
Total deposits	0
Trading liabilities	0	[3]
Total federal funds purchased & securities sold under agreements to repurchase	0
Other Short-term Borrowings	11,585,000
Total short-term financial liabilities	11,585,000
Real estate investment trust-preferred	42,300,000
Term borrowings - new market tax credit investment	16,280,000
Borrowings secured by residential real estate	353,578,000
Other long term borrowings	0
Total term borrowings	412,158,000
Derivative liabilities	2,340,000	[3]
Capital markets payables	0
Accrued interest payable	0
Total other noninterest-bearing liabilities	0
Total liabilities	426,083,000
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Financial And Industrial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	8,138,108,000
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Income C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	1,083,886,000
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member] | Residential C R E [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	62,734,000
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	5,287,039,000	[5]
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	722,087,000	[5]
Fair Value Inputs Level3 [Member] | Estimate Of Fair Value Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income and allowance for loan losses, by portfolio segment	280,344,000
FHLB-Cincinnati Stock [Member] | Fair Value Inputs Level3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted investments	125,500,000
FRB Stock [Member] | Fair Value Inputs Level3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted investments	$ 66,000,000

[1] Includes $2.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. Of this amount, $.6 billion was pledged as collateral for securities sold under repurchase agreements.

[2] Includes $3.0 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. Of this amount, $1.1 billion was pledged as collateral for securities sold under repurchase agreements.

[3] Classes are detailed in the recurring and nonrecurring measurement tables.

[4] Level 3 includes restricted investments in FHLB-Cincinnati stock of $125.5 million and FRB stock of $66.0 million.

[5] Includes restricted real estate loans and secured borrowings.