Fair Value Of Assets And Liabilities (Summary Of Book Value And Estimated Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2017		Dec. 31, 2016
Assets:
Total loans, net of unearned income and allowance for loan losses		$ 19,792,062		$ 19,387,452
Short-term financial assets:
Interest-bearing cash		573,666		1,060,034
Federal funds sold		34,036		50,838
Securities purchased under agreements to resell		657,991		613,682
Trading securities		1,315,891		897,071
Loans held-for-sale	[1]	432,771		111,248
Securities available-for-sale		3,949,592	[2]	3,943,499	[3]
Held-to-maturity Securities		10,000		14,347
Derivative assets		91,653		121,654
Nonearning assets:
Cash and due from banks		387,053		373,274
Fixed income receivables		127,724		57,411
Total assets		29,369,956		28,555,231
Deposits:
Total deposits		22,333,349		22,672,363
Trading Liabilities		555,793		561,848
Short-term financial liabilities:
Federal Funds Purchased		314,892		414,207
Securities sold under agreements to repurchase		743,684		453,053
Other short-term borrowings		1,044,658		83,177
Term borrowings:
Total term borrowings		1,033,329		1,040,656
Derivative liabilities		92,717		135,897
Other noninterest-bearing liabilities:
Fixed income payables		28,571		21,002
Total liabilities		26,543,068		25,850,147
Fair Value, Inputs, Level 3 | FHLB-Cincinnati Stock
Other noninterest-bearing liabilities:
Restricted investments		87,900		87,900
Fair Value, Inputs, Level 3 | FRB Stock [Member]
Other noninterest-bearing liabilities:
Restricted investments		68,600		68,600
Reported Value Measurement
Assets:
Total loans, net of unearned income and allowance for loan losses		19,792,062		19,387,452
Short-term financial assets:
Interest-bearing cash		573,666		1,060,034
Federal funds sold		34,036		50,838
Securities purchased under agreements to resell		657,991		613,682
Total short-term financial assets		1,265,693		1,724,554
Trading securities		1,315,891	[4]	897,071	[5]
Loans held-for-sale		432,771	[4]	111,248
Securities available-for-sale		3,949,592	[4]	3,943,499	[5]
Held-to-maturity Securities		10,000		14,347
Derivative assets		91,653	[4]	121,654	[5]
Other assets:
Tax credit investments		99,217		100,105
Deferred compensation assets		35,064		32,840
Total other assets		134,281		132,945
Nonearning assets:
Cash and due from banks		387,053		373,274
Fixed income receivables		127,724		57,411
Accrued interest receivable		65,330		62,887
Total nonearning assets		580,107		493,572
Total assets		27,572,050		26,826,342
Deposits:
Defined maturity		1,373,618		1,355,133
Undefined maturity		20,959,731		21,317,230
Total deposits		22,333,349		22,672,363
Trading Liabilities		555,793	[4]	561,848	[5]
Short-term financial liabilities:
Federal Funds Purchased		314,892		414,207
Securities sold under agreements to repurchase		743,684		453,053
Other short-term borrowings		1,044,658		83,177
Total short-term financial liabilities		2,103,234		950,437
Term borrowings:
Real estate investment trust-preferred		46,066		46,032
Term borrowings - new market tax credit investment		18,000		18,000
Borrowings secured by residential real estate		15,887		23,126
Other long term borrowings		953,376		953,498
Total term borrowings		1,033,329		1,040,656
Derivative liabilities		92,717	[4]	135,897	[5]
Other noninterest-bearing liabilities:
Fixed income payables		28,571		21,002
Accrued interest payable		11,639		10,336
Total other noninterest-bearing liabilities		40,210		31,338
Total liabilities		26,158,632		25,392,539
Reported Value Measurement | Commercial Financial And Industrial Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		12,505,840		12,058,689
Reported Value Measurement | Commercial Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		2,181,526		2,101,671
Reported Value Measurement | Consumer Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		4,371,390		4,473,395
Reported Value Measurement | Permanent Mortgage Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		391,697		406,836
Reported Value Measurement | Credit Card And Other Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		341,609		346,861
Estimate of Fair Value Measurement
Assets:
Total loans, net of unearned income and allowance for loan losses		19,635,161		19,134,856
Short-term financial assets:
Interest-bearing cash		573,666		1,060,034
Federal funds sold		34,036		50,838
Securities purchased under agreements to resell		657,991		613,682
Total short-term financial assets		1,265,693		1,724,554
Trading securities		1,315,891	[4]	897,071	[5]
Loans held-for-sale		434,608	[4]	111,248
Securities available-for-sale		3,949,592	[4]	3,943,499	[5]
Held-to-maturity Securities		9,991		14,773
Derivative assets		91,653	[4]	121,654	[5]
Other assets:
Tax credit investments		98,983		98,400
Deferred compensation assets		35,064		32,840
Total other assets		134,047		131,240
Nonearning assets:
Cash and due from banks		387,053		373,274
Fixed income receivables		127,724		57,411
Accrued interest receivable		65,330		62,887
Total nonearning assets		580,107		493,572
Total assets		27,416,743		26,572,467
Deposits:
Defined maturity		1,380,279		1,361,104
Undefined maturity		20,959,731		21,317,230
Total deposits		22,340,010		22,678,334
Trading Liabilities		555,793	[4]	561,848	[5]
Short-term financial liabilities:
Federal Funds Purchased		314,892		414,207
Securities sold under agreements to repurchase		743,684		453,053
Other short-term borrowings		1,044,658		83,177
Total short-term financial liabilities		2,103,234		950,437
Term borrowings:
Real estate investment trust-preferred		49,350		49,350
Term borrowings - new market tax credit investment		17,961		17,918
Borrowings secured by residential real estate		15,093		21,969
Other long term borrowings		966,541		965,066
Total term borrowings		1,048,945		1,054,303
Derivative liabilities		92,717	[4]	135,897	[5]
Other noninterest-bearing liabilities:
Fixed income payables		28,571		21,002
Accrued interest payable		11,639		10,336
Total other noninterest-bearing liabilities		40,210		31,338
Total liabilities		26,180,909		25,412,157
Loan commitments		2,582		2,924
Standby and other commitments		3,991		4,037
Estimate of Fair Value Measurement | Commercial Financial And Industrial Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		12,424,202		11,918,374
Estimate of Fair Value Measurement | Commercial Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		2,155,023		2,078,306
Estimate of Fair Value Measurement | Consumer Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		4,319,728		4,385,669
Estimate of Fair Value Measurement | Permanent Mortgage Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		394,561		404,930
Estimate of Fair Value Measurement | Credit Card And Other Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		341,647		347,577
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Short-term financial assets:
Interest-bearing cash		573,666		1,060,034
Federal funds sold		0		0
Securities purchased under agreements to resell		0		0
Total short-term financial assets		573,666		1,060,034
Trading securities		0	[4]	0	[5]
Loans held-for-sale		0	[4]	0
Securities available-for-sale		25,182	[4]	25,249	[5]
Held-to-maturity Securities		0		0
Derivative assets		16,049	[4]	33,587	[5]
Other assets:
Tax credit investments		0		0
Deferred compensation assets		35,064		32,840
Total other assets		35,064		32,840
Nonearning assets:
Cash and due from banks		387,053		373,274
Fixed income receivables		0		0
Accrued interest receivable		0		0
Total nonearning assets		387,053		373,274
Total assets		1,037,014		1,524,984
Deposits:
Defined maturity		0		0
Undefined maturity		0		0
Total deposits		0		0
Trading Liabilities		0	[4]	0	[5]
Short-term financial liabilities:
Federal Funds Purchased		0		0
Securities sold under agreements to repurchase		0		0
Other short-term borrowings		0		0
Total short-term financial liabilities		0		0
Term borrowings:
Real estate investment trust-preferred		0		0
Term borrowings - new market tax credit investment		0		0
Borrowings secured by residential real estate		0		0
Other long term borrowings		0		0
Total term borrowings		0		0
Derivative liabilities		12,578	[4]	33,274	[5]
Other noninterest-bearing liabilities:
Fixed income payables		0		0
Accrued interest payable		0		0
Total other noninterest-bearing liabilities		0		0
Total liabilities		12,578		33,274
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Commercial Financial And Industrial Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Commercial Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Consumer Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Permanent Mortgage Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Credit Card And Other Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Short-term financial assets:
Interest-bearing cash		0		0
Federal funds sold		34,036		50,838
Securities purchased under agreements to resell		657,991		613,682
Total short-term financial assets		692,027		664,520
Trading securities		1,313,427	[4]	894,498	[5]
Loans held-for-sale		335,193	[4]	6,631
Securities available-for-sale		3,761,539	[4]	3,756,745	[5]
Held-to-maturity Securities		0		0
Derivative assets		75,604	[4]	88,067	[5]
Other assets:
Tax credit investments		0		0
Deferred compensation assets		0		0
Total other assets		0		0
Nonearning assets:
Cash and due from banks		0		0
Fixed income receivables		127,724		57,411
Accrued interest receivable		65,330		62,887
Total nonearning assets		193,054		120,298
Total assets		6,370,844		5,530,759
Deposits:
Defined maturity		1,380,279		1,361,104
Undefined maturity		20,959,731		21,317,230
Total deposits		22,340,010		22,678,334
Trading Liabilities		555,793	[4]	561,848	[5]
Short-term financial liabilities:
Federal Funds Purchased		314,892		414,207
Securities sold under agreements to repurchase		743,684		453,053
Other short-term borrowings		1,044,658		83,177
Total short-term financial liabilities		2,103,234		950,437
Term borrowings:
Real estate investment trust-preferred		0		0
Term borrowings - new market tax credit investment		0		0
Borrowings secured by residential real estate		0		0
Other long term borrowings		966,541		965,066
Total term borrowings		966,541		965,066
Derivative liabilities		74,439	[4]	96,378	[5]
Other noninterest-bearing liabilities:
Fixed income payables		28,571		21,002
Accrued interest payable		11,639		10,336
Total other noninterest-bearing liabilities		40,210		31,338
Total liabilities		26,080,227		25,283,401
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Commercial Financial And Industrial Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Commercial Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Consumer Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Permanent Mortgage Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Credit Card And Other Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3
Assets:
Total loans, net of unearned income and allowance for loan losses		19,635,161		19,134,856
Short-term financial assets:
Interest-bearing cash		0		0
Federal funds sold		0		0
Securities purchased under agreements to resell		0		0
Total short-term financial assets		0		0
Trading securities		2,464	[4]	2,573	[5]
Loans held-for-sale		99,415	[4]	104,617
Securities available-for-sale		162,871	[4],[6]	161,505	[5],[7]
Held-to-maturity Securities		9,991		14,773
Derivative assets		0	[4]	0	[5]
Other assets:
Tax credit investments		98,983		98,400
Deferred compensation assets		0		0
Total other assets		98,983		98,400
Nonearning assets:
Cash and due from banks		0		0
Fixed income receivables		0		0
Accrued interest receivable		0		0
Total nonearning assets		0		0
Total assets		20,008,885		19,516,724
Deposits:
Defined maturity		0		0
Undefined maturity		0		0
Total deposits		0		0
Trading Liabilities		0	[4]	0	[5]
Short-term financial liabilities:
Federal Funds Purchased		0		0
Securities sold under agreements to repurchase		0		0
Other short-term borrowings		0		0
Total short-term financial liabilities		0		0
Term borrowings:
Real estate investment trust-preferred		49,350		49,350
Term borrowings - new market tax credit investment		17,961		17,918
Borrowings secured by residential real estate		15,093		21,969
Other long term borrowings		0		0
Total term borrowings		82,404		89,237
Derivative liabilities		5,700	[4]	6,245	[5]
Other noninterest-bearing liabilities:
Fixed income payables		0		0
Accrued interest payable		0		0
Total other noninterest-bearing liabilities		0		0
Total liabilities		88,104		95,482
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial Financial And Industrial Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		12,424,202		11,918,374
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		2,155,023		2,078,306
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Consumer Real Estate Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		4,319,728		4,385,669
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Permanent Mortgage Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		394,561		404,930
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Credit Card And Other Portfolio Segment
Assets:
Total loans, net of unearned income and allowance for loan losses		341,647		347,577
Contractual Amount
Other noninterest-bearing liabilities:
Loan commitments		8,871,103		8,744,649
Standby and other commitments		$ 305,330		$ 277,549

[1] June 30, 2017 and December 31, 2016 include $15.1 million and $19.3 million, respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.

[2] Includes $3.5 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.

[3] Includes $3.3 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.

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

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

[6] Level 3 includes restricted investments in FHLB-Cincinnati stock of $87.9 million and FRB stock of $68.6 million.

[7] Level 3 includes restricted investments in FHLB-Cincinnati stock of $87.9 million and FRB stock of $68.6 million.