Fair Value Of Assets And Liabilities (Summary Of Book Value And Estimated Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands		Mar. 31, 2017		Dec. 31, 2016
Assets:
Total loans, net of unearned income and allowance for loan losses		$ 18,888,106		$ 19,387,452
Short-term financial assets:
Interest-bearing cash		2,106,597		1,060,034
Federal funds sold		31,495		50,838
Securities purchased under agreements to resell		835,222		613,682
Trading securities		1,167,310		897,071
Loans held-for-sale	[1]	105,456		111,248
Securities available-for-sale		3,939,278	[2]	3,943,499	[3]
Securities held-to-maturity		14,354		14,347
Derivative assets		98,120		121,654
Other assets:
Total other assets		132,229		155,479
Nonearning assets:
Cash and due from banks		369,290		373,274
Fixed income receivables		168,315		57,411
Total assets		29,618,600		28,555,231
Deposits:
Total deposits		23,479,841		22,672,363
Trading liabilities		848,190		561,848
Short-term financial liabilities:
Federal Funds Purchased		504,805		414,207
Securities sold under agreements to repurchase		406,354		453,053
Other short-term borrowings		79,454		83,177
Term borrowings:
Total term borrowings		1,035,036		1,040,656
Derivative liabilities		101,347		135,897
Other noninterest-bearing liabilities:
Fixed income payables		21,116		21,002
Total liabilities		26,878,140		25,850,147
Fair Value Inputs Level1 [Member]
Short-term financial assets:
Securities available-for-sale		25,221		25,249
Other assets:
Total other assets		51,336		66,427
Fair Value Inputs Level2 [Member]
Short-term financial assets:
Securities available-for-sale		3,752,333		3,756,745
Other assets:
Total other assets		80,893		88,067
Fair Value Inputs Level3 [Member]
Short-term financial assets:
Securities available-for-sale		0		0
Other assets:
Total other assets		0		985
Fair Value Inputs Level3 [Member] | FHLB-Cincinnati Stock [Member]
Other noninterest-bearing liabilities:
Restricted investments		87,900		87,900
Fair Value Inputs Level3 [Member] | FRB Stock [Member]
Other noninterest-bearing liabilities:
Restricted investments		68,600		68,600
Carrying Reported Amount Fair Value Disclosure [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		18,888,106		19,387,452
Short-term financial assets:
Interest-bearing cash		2,106,597		1,060,034
Federal funds sold		31,495		50,838
Securities purchased under agreements to resell		835,222		613,682
Total short-term financial assets		2,973,314		1,724,554
Trading securities	[4]	1,167,310		897,071
Loans held-for-sale		105,456		111,248
Securities available-for-sale	[4]	3,939,278	[5]	3,943,499	[6]
Securities held-to-maturity		14,354		14,347
Derivative assets	[4]	98,120		121,654
Other assets:
Tax credit investments		96,824		100,105
Deferred compensation assets		34,109		32,840
Total other assets		130,933		132,945
Nonearning assets:
Cash and due from banks		369,290		373,274
Fixed income receivables		168,315		57,411
Accrued interest receivable		61,832		62,887
Total nonearning assets		599,437		493,572
Total assets		27,916,308		26,826,342
Deposits:
Defined maturity		1,385,818		1,355,133
Undefined maturity		22,094,023		21,317,230
Total deposits		23,479,841		22,672,363
Trading liabilities	[4]	848,190		561,848
Short-term financial liabilities:
Federal Funds Purchased		504,805		414,207
Securities sold under agreements to repurchase		406,354		453,053
Other short-term borrowings		79,454		83,177
Total short-term financial liabilities		990,613		950,437
Term borrowings:
Real estate investment trust-preferred		46,049		46,032
Term borrowings - new market tax credit investment		18,000		18,000
Borrowings secured by residential real estate		19,819		23,126
Other long term borrowings		951,168		953,498
Total term borrowings		1,035,036		1,040,656
Derivative liabilities	[4]	101,347		135,897
Other noninterest-bearing liabilities:
Fixed income payables		21,116		21,002
Accrued interest payable		17,696		10,336
Total other noninterest-bearing liabilities		38,812		31,338
Total liabilities		26,493,839		25,392,539
Carrying Reported Amount Fair Value Disclosure [Member] | Commercial Financial And Industrial Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		11,610,889		12,058,689
Carrying Reported Amount Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		2,142,423		2,101,671
Carrying Reported Amount Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		4,407,131		4,473,395
Carrying Reported Amount Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		393,342		406,836
Carrying Reported Amount Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		334,321		346,861
Estimate Of Fair Value Fair Value Disclosure [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		18,687,323		19,134,856
Short-term financial assets:
Interest-bearing cash		2,106,597		1,060,034
Federal funds sold		31,495		50,838
Securities purchased under agreements to resell		835,222		613,682
Total short-term financial assets		2,973,314		1,724,554
Trading securities	[4]	1,167,310		897,071
Loans held-for-sale		105,456		111,248
Securities available-for-sale	[4]	3,939,278	[5]	3,943,499	[6]
Securities held-to-maturity		14,803		14,773
Derivative assets	[4]	98,120		121,654
Other assets:
Tax credit investments		94,884		98,400
Deferred compensation assets		34,109		32,840
Total other assets		128,993		131,240
Nonearning assets:
Cash and due from banks		369,290		373,274
Fixed income receivables		168,315		57,411
Accrued interest receivable		61,832		62,887
Total nonearning assets		599,437		493,572
Total assets		27,714,034		26,572,467
Deposits:
Defined maturity		1,391,170		1,361,104
Undefined maturity		22,094,023		21,317,230
Total deposits		23,485,193		22,678,334
Trading liabilities	[4]	848,190		561,848
Short-term financial liabilities:
Federal Funds Purchased		504,805		414,207
Securities sold under agreements to repurchase		406,354		453,053
Other short-term borrowings		79,454		83,177
Total short-term financial liabilities		990,613		950,437
Term borrowings:
Real estate investment trust-preferred		49,350		49,350
Term borrowings - new market tax credit investment		17,934		17,918
Borrowings secured by residential real estate		18,828		21,969
Other long term borrowings		967,792		965,066
Total term borrowings		1,053,904		1,054,303
Derivative liabilities	[4]	101,347		135,897
Other noninterest-bearing liabilities:
Fixed income payables		21,116		21,002
Accrued interest payable		17,696		10,336
Total other noninterest-bearing liabilities		38,812		31,338
Total liabilities		26,518,059		25,412,157
Loan commitments		2,612		2,924
Standby and other commitments		4,230		4,037
Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Financial And Industrial Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		11,520,970		11,918,374
Estimate Of Fair Value Fair Value Disclosure [Member] | Commercial Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		2,112,591		2,078,306
Estimate Of Fair Value Fair Value Disclosure [Member] | Consumer Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		4,325,035		4,385,669
Estimate Of Fair Value Fair Value Disclosure [Member] | Permanent Mortgage Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		393,859		404,930
Estimate Of Fair Value Fair Value Disclosure [Member] | Credit Card And Other Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		334,868		347,577
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Short-term financial assets:
Interest-bearing cash		2,106,597		1,060,034
Federal funds sold		0		0
Securities purchased under agreements to resell		0		0
Total short-term financial assets		2,106,597		1,060,034
Trading securities	[4]	0		0
Loans held-for-sale		0		0
Securities available-for-sale	[4]	25,221	[5]	25,249	[6]
Securities held-to-maturity		0		0
Derivative assets	[4]	17,227		33,587
Other assets:
Tax credit investments		0		0
Deferred compensation assets		34,109		32,840
Total other assets		34,109		32,840
Nonearning assets:
Cash and due from banks		369,290		373,274
Fixed income receivables		0		0
Accrued interest receivable		0		0
Total nonearning assets		369,290		373,274
Total assets		2,552,444		1,524,984
Deposits:
Defined maturity		0		0
Undefined maturity		0		0
Total deposits		0		0
Trading liabilities	[4]	0		0
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	[4]	18,365		33,274
Other noninterest-bearing liabilities:
Fixed income payables		0		0
Accrued interest payable		0		0
Total other noninterest-bearing liabilities		0		0
Total liabilities		18,365		33,274
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member] | Commercial Financial And Industrial Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member] | Consumer Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member] | Permanent Mortgage Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level1 [Member] | Credit Card And Other Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member]
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		31,495		50,838
Securities purchased under agreements to resell		835,222		613,682
Total short-term financial assets		866,717		664,520
Trading securities	[4]	1,164,975		894,498
Loans held-for-sale		4,700		6,631
Securities available-for-sale	[4]	3,752,333	[5]	3,756,745	[6]
Securities held-to-maturity		0		0
Derivative assets	[4]	80,893		88,067
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		168,315		57,411
Accrued interest receivable		61,832		62,887
Total nonearning assets		230,147		120,298
Total assets		6,099,765		5,530,759
Deposits:
Defined maturity		1,391,170		1,361,104
Undefined maturity		22,094,023		21,317,230
Total deposits		23,485,193		22,678,334
Trading liabilities	[4]	848,190		561,848
Short-term financial liabilities:
Federal Funds Purchased		504,805		414,207
Securities sold under agreements to repurchase		406,354		453,053
Other short-term borrowings		79,454		83,177
Total short-term financial liabilities		990,613		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		967,792		965,066
Total term borrowings		967,792		965,066
Derivative liabilities	[4]	77,032		96,378
Other noninterest-bearing liabilities:
Fixed income payables		21,116		21,002
Accrued interest payable		17,696		10,336
Total other noninterest-bearing liabilities		38,812		31,338
Total liabilities		26,407,632		25,283,401
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member] | Commercial Financial And Industrial Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member] | Consumer Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member] | Permanent Mortgage Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level2 [Member] | Credit Card And Other Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		0		0
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		18,687,323		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	[4]	2,335		2,573
Loans held-for-sale		100,756	[4]	104,617
Securities available-for-sale	[4]	161,724	[5]	161,505	[6]
Securities held-to-maturity		14,803		14,773
Derivative assets	[4]	0		0
Other assets:
Tax credit investments		94,884		98,400
Deferred compensation assets		0		0
Total other assets		94,884		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		19,061,825		19,516,724
Deposits:
Defined maturity		0		0
Undefined maturity		0		0
Total deposits		0		0
Trading liabilities	[4]	0		0
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		17,934		17,918
Borrowings secured by residential real estate		18,828		21,969
Other long term borrowings		0		0
Total term borrowings		86,112		89,237
Derivative liabilities	[4]	5,950		6,245
Other noninterest-bearing liabilities:
Fixed income payables		0		0
Accrued interest payable		0		0
Total other noninterest-bearing liabilities		0		0
Total liabilities		92,062		95,482
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member] | Commercial Financial And Industrial Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		11,520,970		11,918,374
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		2,112,591		2,078,306
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member] | Consumer Real Estate Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		4,325,035		4,385,669
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member] | Permanent Mortgage Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		393,859		404,930
Estimate Of Fair Value Fair Value Disclosure [Member] | Fair Value Inputs Level3 [Member] | Credit Card And Other Portfolio Segment [Member]
Assets:
Total loans, net of unearned income and allowance for loan losses		334,868		347,577
Contractual Amount [Member]
Other noninterest-bearing liabilities:
Loan commitments		9,430,508		8,744,649
Standby and other commitments		$ 273,029		$ 277,549

[1] March 31, 2017 an d December 31, 2016 include $17.5 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 repu rchase, and for other purposes .

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

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

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