First Horizon (FHN) 10-Q 8 Nov 19 2019 Q3 Quarterly report Financial data

Cover

Cover	9 Months Ended
	Sep. 30, 2019shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	001-15185
Entity Registrant Name	First Horizon National Corporation
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	62-0803242
Entity Address, Address Line One	165 Madison Avenue
Entity Address, City or Town	Memphis,
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	38103
City Area Code	901
Local Phone Number	523-4444
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)	311,179,707
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000036966
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Capital Stock
Entity Information [Line Items]
Title of 12(b) Security	$.625 Par Value Common Capital Stock
Trading Symbol	FHN
Security Exchange Name	NYSE
Series A Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/4,000th interest ina share of Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	FHN PR A
Security Exchange Name	NYSE

CONSOLIDATED CONDENSED STATEMEN

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Assets:
Cash and due from banks		$ 749,719	$ 781,291
Federal funds sold		48,747	237,591
Securities purchased under agreements to resell (Note 16)		697,214	386,443
Total cash and cash equivalents		1,495,680	1,405,325
Interest-bearing cash		364,412	1,277,611
Trading securities		1,395,043	1,448,168
Loans held-for-sale	[1]	554,843	679,149
Securities available-for-sale (Note 3)		4,415,845	4,626,470
Securities held-to-maturity (Note 3)		10,000	10,000
Loans, net of unearned income	[2]	31,260,833	27,535,532
Less: Allowance for loan losses		193,149	180,424
Total net loans		31,067,684	27,355,108
Goodwill (Note 6)		1,432,787	1,432,787
Other intangible assets, net (Note 6)		136,406	155,034
Fixed income receivables		209,732	38,861
Premises and equipment, net (September 30, 2019 and December 31, 2018 include $14.3 million and $19.6 million, respectively, classified as held-for-sale)		451,600	494,041
Other real estate owned (OREO)	[3]	20,181	25,290
Derivative assets (Note 15)		250,786	81,475
Other assets		1,912,685	1,802,939
Total assets		43,717,684	40,832,258
Deposits:
Savings		11,489,000	12,064,072
Time deposits, net		4,176,267	4,105,777
Other interest-bearing deposits		8,010,581	8,371,826
Interest-bearing		23,675,848	24,541,675
Noninterest-bearing		8,268,812	8,141,317
Total deposits		31,944,660	32,682,992
Federal funds purchased		936,837	256,567
Securities sold under agreements to repurchase (Note 16)		735,226	762,592
Trading liabilities		719,777	335,380
Other short-term borrowings		2,276,139	114,764
Term borrowings		1,195,096	1,170,963
Fixed income payables		66,842	9,572
Derivative liabilities (Note 15)		83,530	133,713
Other liabilities		763,534	580,335
Total liabilities		38,721,641	36,046,878
First Horizon National Corporation Shareholders’ Equity:
Preferred stock - Series A, non-cumulative perpetual, no par value, liquidation preference of $100,000 per share - (shares authorized - 1,000; shares issued - 1,000 on September 30, 2019 and December 31, 2018)		95,624	95,624
Common stock - $.625 par value (shares authorized - 400,000,000; shares issued - 311,179,707 on September 30, 2019 and 318,573,400 on December 31, 2018)		194,487	199,108
Capital surplus		2,925,309	3,029,425
Undivided profits		1,725,846	1,542,408
Accumulated other comprehensive loss, net (Note 9)		(240,654)	(376,616)
Total First Horizon National Corporation Shareholders’ Equity		4,700,612	4,489,949
Noncontrolling interest		295,431	295,431
Total equity		4,996,043	4,785,380
Total liabilities and equity		$ 43,717,684	$ 40,832,258
[1]	September 30, 2019 and December 31, 2018 include $6.4 million and $8.4 million , respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[3]	September 30, 2019 and December 31, 2018 include $8.8 million and $9.7 million , respectively, of foreclosed residential real estate.

CONSOLIDATED CONDENSED STATEM_2

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Premises and equipment, net, held-for-sale)		$ 14,300	$ 19,600
Common stock, par value (in dollars per share)		$ 0.625	$ 0.625
Common stock, shares authorized (in shares)		400,000,000	400,000,000
Common stock, shares issued (in shares)		311,179,707	318,573,400
Preferred stock liquidation preference value (in dollars per share)		$ 100,000	$ 100,000
Preferred stock, shares authorized (in shares)		1,000	1,000
Preferred stock, shares issued (in shares)		1,000	1,000
OREO	[1]	$ 20,181	$ 25,290
Residential Real Estate
Held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure		18,200	28,600
OREO		8,800	9,700
Residential Real Estate | Loans Held For Sale, Residential Real Estate
Held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure		$ 6,400	$ 8,400
[1]	September 30, 2019 and December 31, 2018 include $8.8 million and $9.7 million , respectively, of foreclosed residential real estate.

CONSOLIDATED CONDENSED STATEM_3

CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest income:
Interest and fees on loans	$ 356,371	$ 331,000	$ 1,040,421	$ 954,467
Interest on investment securities available-for-sale	28,770	32,391	91,860	97,872
Interest on investment securities held-to-maturity	131	131	394	394
Interest on loans held-for-sale	6,069	9,977	24,074	33,349
Interest on trading securities	10,512	14,130	37,214	43,280
Interest on other earning assets	5,641	6,040	26,235	15,473
Total interest income	407,494	393,669	1,220,198	1,144,835
Interest on deposits:
Savings	37,243	30,022	113,963	70,522
Time deposits	22,147	14,667	64,840	35,428
Other interest-bearing deposits	19,201	14,401	61,000	36,922
Interest on trading liabilities	2,943	5,125	9,515	15,039
Interest on short-term borrowings	11,532	9,762	29,314	29,914
Interest on term borrowings	13,752	13,992	42,772	39,205
Total interest expense	106,818	87,969	321,404	227,030
Net interest income	300,676	305,700	898,794	917,805
Provision/(provision credit) for loan losses	15,000	2,000	37,000	1,000
Net interest income after provision/(provision credit) for loan losses	285,676	303,700	861,794	916,805
Noninterest income:
Fixed income	77,645	44,813	197,808	128,016
Deposit transactions and cash management	34,379	35,792	98,374	107,859
Brokerage, management fees and commissions	14,157	14,200	40,910	41,423
Trust services and investment management	7,163	7,438	22,077	22,847
Bankcard income	7,017	7,744	20,324	21,734
Bank-owned life insurance (BOLI)	4,427	4,337	13,955	14,103
Debt securities gains/(losses), net (Note 3 and Note 9)	0	0	(267)	52
Equity securities gains/(losses), net (Note 3)	97	212,859	444	212,924
All other income and commissions (Note 8)	26,850	21,789	77,148	63,556
Total noninterest income	171,735	348,972	470,773	612,514
Adjusted gross income after provision/(provision credit) for loan losses	457,411	652,672	1,332,567	1,529,319
Noninterest expense:
Employee compensation, incentives, and benefits	167,022	164,839	516,590	501,983
Occupancy	18,887	20,002	60,299	62,956
Computer software	15,191	15,693	45,331	45,948
Professional fees	14,910	9,270	38,500	36,957
Operations services	11,634	13,121	34,835	43,335
Equipment rentals, depreciation, and maintenance	8,197	9,423	25,401	30,149
Advertising and public relations	6,646	8,365	19,462	17,034
Amortization of intangible assets	6,206	6,460	18,628	19,394
Communications and courier	5,650	7,014	19,483	22,776
FDIC premium expense	5,564	7,850	14,084	26,442
Legal fees	4,854	2,541	14,171	7,670
Contract employment and outsourcing	3,256	4,314	9,705	14,274
Repurchase and foreclosure provision/(provision credit)	(22)	(562)	(1,007)	(886)
All other expense (Note 8)	39,677	25,701	88,674	112,032
Total noninterest expense	307,672	294,031	904,156	940,064
Income/(loss) before income taxes	149,739	358,641	428,411	589,255
Provision/(benefit) for income taxes	35,796	83,925	97,321	133,553
Net income/(loss)	113,943	274,716	331,090	455,702
Net income attributable to noncontrolling interest	2,883	2,883	8,555	8,555
Net income/(loss) attributable to controlling interest	111,060	271,833	322,535	447,147
Preferred stock dividends	1,550	1,550	4,650	4,650
Net income/(loss) available to common shareholders	$ 109,510	$ 270,283	$ 317,885	$ 442,497
Basic earnings/(loss) per share (Note 10) (in dollars per share)	$ 0.35	$ 0.83	$ 1.01	$ 1.36
Diluted earnings/(loss) per share (Note 10) (in dollars per share)	$ 0.35	$ 0.83	$ 1	$ 1.35
Weighted average common shares (Note 10) (in shares)	311,888	324,406	314,442	325,341
Diluted average common shares (Note 10) (in shares)	313,805	327,252	316,401	328,645
Cash dividends declared per common share (in dollars per share)	$ 0.14	$ 0.12	$ 0.42	$ 0.36

CONSOLIDATED CONDENSED STATEM_4

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statements of Comprehensive Income/(loss)
Net income/(loss)	$ 113,943	$ 274,716	$ 331,090	$ 455,702
Other comprehensive income/(loss), net of tax:
Net unrealized gains/(losses) on securities available-for-sale	16,889	(25,924)	113,696	(106,561)
Net unrealized gains/(losses) on cash flow hedges	2,844	(1,746)	17,140	(13,533)
Net unrealized gains/(losses) on pension and other postretirement plans	2,102	2,135	5,126	5,481
Other comprehensive income/(loss)	21,835	(25,535)	135,962	(114,613)
Comprehensive income/(loss)	135,778	249,181	467,052	341,089
Comprehensive income attributable to noncontrolling interest	2,883	2,883	8,555	8,555
Comprehensive income attributable to controlling interest	132,895	246,298	458,497	332,534
Income tax expense/(benefit) of items included in Other comprehensive income:
Net unrealized gains/(losses) on securities available-for-sale	5,544	(8,510)	37,321	(34,981)
Net unrealized gains/(losses) on cash flow hedges	934	(573)	5,626	(4,443)
Net unrealized gains/(losses) on pension and other postretirement plans	$ 690	$ 701	$ 1,683	$ 1,799

CONSOLIDATED CONDENSED STATEM_5

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY - USD ($) $ in Thousands		Total	Common Stock	Preferred Stock	Capital Surplus	Undivided Profits	Accumulated Other Comprehensive Income/(Loss)		Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU							$ (211)
Adjustment to reflect adoption of ASU | Accounting Standards Update 2018-02						$ 57,546	(57,546)	[1]
Balance, adjusted		$ 4,580,488	$ 204,211	$ 95,624	$ 3,147,613	1,160,434	(322,825)	[1]	$ 295,431
Balance, beginning of period (in shares) at Dec. 31, 2017			326,736,000
Balance, beginning of period at Dec. 31, 2017		4,580,488	$ 204,211	95,624	3,147,613	1,102,888	(265,279)	[1]	295,431
Beginning balance, as adjusted at Dec. 31, 2017							(323,036)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		94,994				92,174			2,820
Other comprehensive income/(loss)		(67,049)					(67,049)	[1]
Comprehensive income/(loss)		27,945				92,174	(67,049)	[1]	2,820
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(39,681)				(39,681)
Common stock repurchased (in shares)			(110,000)
Common stock repurchased		(2,185)	$ (70)		(2,115)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			569,000
Stock options and restricted stock - equity awards		4,376	$ 356		4,020
Acquisition equity adjustment (in shares)			(1,000)
Acquisition equity adjustment		(18)	$ (1)		(17)
Stock-based compensation expense		5,906			5,906
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,820)							(2,820)
Balance, end of period (in shares) at Mar. 31, 2018			327,194,000
Balance, end of period at Mar. 31, 2018		4,572,528	$ 204,496	95,624	3,155,407	1,211,655	(390,085)	[1]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2017			326,736,000
Balance, beginning of period at Dec. 31, 2017		4,580,488	$ 204,211	95,624	3,147,613	1,102,888	(265,279)	[1]	295,431
Beginning balance, as adjusted at Dec. 31, 2017							(323,036)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		455,702
Other comprehensive income/(loss)		(114,613)
Comprehensive income/(loss)		341,089
Cash dividends declared:
Preferred stock		(4,650)
Balance, end of period (in shares) at Sep. 30, 2018			323,943,000
Balance, end of period at Sep. 30, 2018		4,741,931	$ 202,464	95,624	3,101,102	1,484,959	(437,649)	[1]	295,431
Balance, beginning of period (in shares) at Mar. 31, 2018			327,194,000
Balance, beginning of period at Mar. 31, 2018		4,572,528	$ 204,496	95,624	3,155,407	1,211,655	(390,085)	[1]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		85,992				83,140			2,852
Other comprehensive income/(loss)		(22,029)					(22,029)	[1]
Comprehensive income/(loss)		63,963				83,140	(22,029)	[1]	2,852
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(39,176)				(39,176)
Common stock repurchased (in shares)			(138,000)
Common stock repurchased		(2,606)	$ (86)		(2,520)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			328,000
Stock options and restricted stock - equity awards		45	$ 205		(160)
Acquisition equity adjustment (in shares)			(2,374,000)
Acquisition equity adjustment		(46,017)	$ (1,483)		(44,534)
Stock-based compensation expense		5,547			5,547
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,852)							(2,852)
Other (in shares)			(7,000)
Other		(133)	$ (5)		(128)
Balance, end of period (in shares) at Jun. 30, 2018			325,003,000
Balance, end of period at Jun. 30, 2018		4,549,749	$ 203,127	95,624	3,113,612	1,254,069	(412,114)	[1]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		274,716				271,833			2,883
Other comprehensive income/(loss)		(25,535)					(25,535)	[1]
Comprehensive income/(loss)		249,181				271,833	(25,535)	[1]	2,883
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(39,393)				(39,393)
Common stock repurchased (in shares)	[2]		(1,077,000)
Common stock repurchased	[2]	(19,206)	$ (673)		(18,533)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			17,000
Stock options and restricted stock - equity awards		21	$ 10		11
Stock-based compensation expense		6,012			6,012
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,883)							(2,883)
Balance, end of period (in shares) at Sep. 30, 2018			323,943,000
Balance, end of period at Sep. 30, 2018		4,741,931	$ 202,464	95,624	3,101,102	1,484,959	(437,649)	[1]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2018			318,573,000
Balance, beginning of period at Dec. 31, 2018		4,785,380	$ 199,108	95,624	3,029,425	1,542,408	(376,616)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		103,405				100,585			2,820
Other comprehensive income/(loss)		55,465					55,465	[3]
Comprehensive income/(loss)		158,870				100,585	55,465	[3]	2,820
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(44,864)				(44,864)
Common stock repurchased (in shares)	[4]		(3,594,000)
Common stock repurchased	[4]	(53,436)	$ (2,246)		(51,190)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			382,000
Stock options and restricted stock - equity awards		520	$ 239		281
Stock-based compensation expense		5,432			5,432
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,820)							(2,820)
Balance, end of period (in shares) at Mar. 31, 2019			315,361,000
Balance, end of period at Mar. 31, 2019		4,846,521	$ 197,101	95,624	2,983,948	1,595,568	(321,151)	[3]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2018			318,573,000
Balance, beginning of period at Dec. 31, 2018		4,785,380	$ 199,108	95,624	3,029,425	1,542,408	(376,616)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		331,090
Other comprehensive income/(loss)		135,962
Comprehensive income/(loss)		467,052
Cash dividends declared:
Preferred stock		(4,650)
Balance, end of period (in shares) at Sep. 30, 2019			311,180,000
Balance, end of period at Sep. 30, 2019		4,996,043	$ 194,487	95,624	2,925,309	1,725,846	(240,654)	[3]	295,431
Balance, beginning of period (in shares) at Mar. 31, 2019			315,361,000
Balance, beginning of period at Mar. 31, 2019		4,846,521	$ 197,101	95,624	2,983,948	1,595,568	(321,151)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		113,742				110,890			2,852
Other comprehensive income/(loss)		58,662					58,662	[3]
Comprehensive income/(loss)		172,404				110,890	58,662	[3]	2,852
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(44,388)				(44,388)
Common stock repurchased (in shares)	[4]		(3,654,000)
Common stock repurchased	[4]	(52,222)	$ (2,284)		(49,938)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			771,000
Stock options and restricted stock - equity awards		2,944	$ 482		2,462
Stock-based compensation expense		5,224			5,224
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,852)							(2,852)
Balance, end of period (in shares) at Jun. 30, 2019			312,478,000
Balance, end of period at Jun. 30, 2019		4,926,081	$ 195,299	95,624	2,941,696	1,660,520	(262,489)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		113,943				111,060			2,883
Other comprehensive income/(loss)		21,835					21,835	[3]
Comprehensive income/(loss)		135,778				111,060	21,835	[3]	2,883
Cash dividends declared:
Preferred stock		(1,550)				(1,550)
Common stock		(44,184)				(44,184)
Common stock repurchased (in shares)	[4]		(1,804,000)
Common stock repurchased	[4]	(28,382)	$ (1,127)		(27,255)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)			506,000
Stock options and restricted stock - equity awards		5,361	$ 315		5,046
Stock-based compensation expense		5,822			5,822
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,883)							(2,883)
Balance, end of period (in shares) at Sep. 30, 2019			311,180,000
Balance, end of period at Sep. 30, 2019		$ 4,996,043	$ 194,487	$ 95,624	$ 2,925,309	$ 1,725,846	$ (240,654)	[3]	$ 295,431
[1]	Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.
[2]	Third quarter 2018 includes $19.0 million of share repurchased under share repurchase programs.
[3]	Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.
[4]	Third, second and first quarter 2019 include $28.2 million , $50.2 million and $51.5 million

CONSOLIDATED CONDENSED STATEM_6

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Preferred stock - cash dividends declared per share (in dollars per share)	$ 1,550	$ 1,550	$ 1,550	$ 1,550	$ 1,550	$ 1,550
Common stock - cash dividends declared per share (in dollars per share)	$ 0.14	$ 0.14	$ 0.14	$ 0.12	$ 0.12	$ 0.12
First Horizon Share Repurchase Program
Common stock repurchased under share repurchase program	$ 28.2	$ 50.2	$ 51.5	$ 19

CONSOLIDATED CONDENSED STATEM_7

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		3 Months Ended				9 Months Ended		12 Months Ended
		Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Operating Activities
Net income/(loss)		$ 113,943	$ 103,405	$ 274,716	$ 94,994	$ 331,090	$ 455,702
Adjustments to reconcile net income/(loss) to net cash provided/(used) by operating activities:
Provision/(provision credit) for loan losses		15,000		2,000		37,000	1,000
Provision/(benefit) for deferred income taxes						69,102	106,314
Depreciation and amortization of premises and equipment						33,142	35,700
Amortization of intangible assets		6,206		6,460		18,628	19,394
Net other amortization and accretion						1,632	(9,991)
Net (increase)/decrease in derivatives						(183,852)	86,135
Fair value adjustment on interest-only strips						2,820	(840)
(Gains)/losses and write-downs on OREO, net						(64)	814
Litigation and regulatory matters						6,185	(1,447)
Stock-based compensation expense						16,478	17,465
Gain on sale and pay down of held-to-maturity loans						(1,105)	3,777
Equity securities (gains)/losses, net		(97)		(212,859)		(444)	(212,924)
Debt securities (gains)/losses, net						267	(52)
(Gain)/loss on extinguishment of debt		6		1		7	1
Net (gains)/losses on sale/disposal of fixed assets						20,453	(2,469)
(Gain)/loss on BOLI						(3,224)	(2,785)
Loans held-for-sale:
Purchases and originations						(1,488,577)	(1,729,549)
Gross proceeds from settlements and sales	[1]					581,137	751,589
(Gain)/loss due to fair value adjustments and other						(6,468)	13,755
Pension plan contribution						(509)	0
Net (increase)/decrease in:
Trading securities						1,077,025	392,411
Fixed income receivables						(170,871)	(109,109)
Interest receivable						3,111	(14,052)
Other assets						(40,256)	(6,699)
Net increase/(decrease) in:
Trading liabilities						384,397	101,179
Fixed income payables						57,270	(12,057)
Interest payable						15,935	16,610
Other liabilities						(43,737)	(30,717)
Total adjustments						385,482	(586,547)
Net cash provided/(used) by operating activities						716,572	(130,845)
Available-for-sale securities:
Sales						182,824	15,137
Maturities						566,803	510,232
Purchases						(357,182)	(362,215)
Proceeds from sale of equity investment						1,440	0
Premises and equipment:
Sales						14,370	22,794
Purchases						(28,769)	(32,928)
Proceeds from the sale of Visa Class B shares						0	240,206
Proceeds from sales of OREO						11,482	25,328
Proceeds from sale and pay down of loans classified as held-to-maturity						20,100	50,498
Proceeds from BOLI						10,085	11,559
Net (increase)/decrease in:
Loans						(3,779,972)
Loans							283,922
Interests retained from securitizations classified as trading securities						374	731
Interest-bearing cash						913,199	653,919
Cash paid related to divestitures						0	(27,599)
Cash paid/(received) for acquisitions, net						0	(46,017)
Net cash provided/(used) by investing activities						(2,445,246)	1,345,567
Common stock:
Stock options exercised						8,793	4,443
Cash dividends paid						(127,455)	(99,753)
Repurchase of shares	[2]					(134,041)	(23,997)
Cash dividends paid - preferred stock - noncontrolling interest						(8,555)	(8,555)
Cash dividends paid - Series A preferred stock						(4,650)	(4,650)
Term borrowings:
Payments/maturities						(2,581)	(17,565)
Increases in restricted and secured term borrowings						11,572	5,646
Net increase/(decrease) in:
Deposits						(738,333)	417,612
Short-term borrowings						2,814,279
Short-term borrowings							(1,496,739)
Net cash provided/(used) by financing activities						1,819,029	(1,223,558)
Net increase/(decrease) in cash and cash equivalents						90,355	(8,836)
Cash and cash equivalents at beginning of period			$ 1,405,325		$ 1,452,046	1,405,325	1,452,046	$ 1,452,046
Cash and cash equivalents at end of period		$ 1,495,680		$ 1,443,210		1,495,680	1,443,210	$ 1,405,325
Supplemental Disclosures
Total interest paid						303,180	208,160
Total taxes paid						32,811	12,779
Total taxes refunded						27,742	1,576
Transfer from loans to OREO						6,309	11,388
Transfer from loans HFS to trading securities						1,024,274	907,788
Transfer from loans to loans HFS						$ 31,465	$ 0
[1]	2018 includes $107.4 million related to the sale of approximately $120 million UPB of subprime auto loans. See Note 2- Acquisitions and Divestitures for additional information.
[2]	2019 and 2018 include $129.9 million and $19.0 million , respectively, repurchased under share repurchase programs.

CONSOLIDATED CONDENSED STATEM_8

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Gross proceeds from settlements and sales	[1]	$ 581,137	$ 751,589
Repurchase of shares	[2]	134,041	23,997
First Horizon Share Repurchase Program
Repurchase of shares		$ 129,900	19,000
Portion of Sub-prime Auto Loan Portfolios
Gross proceeds from settlements and sales			107,400
Loans disposed of			$ 120,000
[1]	2018 includes $107.4 million related to the sale of approximately $120 million UPB of subprime auto loans. See Note 2- Acquisitions and Divestitures for additional information.
[2]	2019 and 2018 include $129.9 million and $19.0 million , respectively, repurchased under share repurchase programs.

Financial Information

Financial Information	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Financial Information	Financial Information Basis of Accounting. The unaudited interim consolidated condensed financial statements of First Horizon National Corporation (“FHN”), including its subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America and follow general practices within the industries in which it operates. This preparation requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates and assumptions are based on information available as of the date of the financial statements and could differ from actual results. In the opinion of management, all necessary adjustments have been made for a fair presentation of financial position and results of operations for the periods presented. These adjustments are of a normal recurring nature unless otherwise disclosed in this Quarterly Report on Form 10-Q. The operating results for the interim 2019 period are not necessarily indicative of the results that may be expected going forward. For further information, refer to the audited consolidated financial statements in Exhibit 13 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2018. Revenues. Revenue is recognized when the performance obligations under the terms of a contract with a customer are satisfied in an amount that reflects the consideration FHN expects to be entitled. FHN derives a significant portion of its revenues from fee-based services. Noninterest income from transaction-based fees is generally recognized immediately upon completion of the transaction. Noninterest income from service-based fees is generally recognized over the period in which FHN provides the service. Any services performed over time generally require that FHN render services each period and therefore FHN measures progress in completing these services based upon the passage of time and recognizes revenue as invoiced. See Note 1– Summary of Significant Accounting Policies in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2018, for a discussion of FHN's key revenues. Contract Balances. As of September 30, 2019, accounts receivable related to products and services on non-interest income were $8.6 million . For the three and nine months ended September 30, 2019, FHN had no material impairment losses on non-interest accounts receivable and there were no material contract assets, contract liabilities or deferred contract costs recorded on the Consolidated Condensed Statements of Condition as of September 30, 2019. Transaction Price Allocated to Remaining Performance Obligations. For the three and nine months ended September 30, 2019, revenue recognized from performance obligations related to prior periods was not material. Revenue expected to be recognized in any future year related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less and contracts where revenue is recognized as invoiced, is not material. Refer to Note 13– Business Segment Information for a reconciliation of disaggregated revenue by major product line and reportable segment. Leases. At inception, all arrangements are evaluated to determine if they contain a lease, which is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. Control is deemed to exist when a lessor has granted and a lessee has received both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset throughout the period of use. Lessee. As a lessee, FHN recognizes lease (right-of-use) assets and lease liabilities for all leasing arrangements with lease terms that are greater than one year. The lease asset and lease liability are recognized at the present value of estimated future lease payments, including estimated renewal periods, with the discount rate reflecting a fully-collateralized rate matching the estimated lease term. Renewal options are included in the estimated lease term if they are considered reasonably certain of exercise. Periods covered by termination options are included in the lease term if it is reasonably certain they will not be exercised. Additionally, prepaid or accrued lease payments, lease incentives and initial direct costs related to lease arrangements are recognized within the right-of-use asset. Each lease is classified as a financing or operating lease which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. Substantially all of FHN’s lessee arrangements are classified as operating leases. For leases with a term of 12 months or less, FHN does not to recognize lease assets and lease liabilities and expense is generally recognized on a straight-line basis over the lease term. Lease assumptions and classification are reassessed upon the occurrence of events that result in changes to the estimated lease term or consideration. Modifications to lease contracts are evaluated to determine 1) if a right to use an additional asset has been obtained, 2) if only the lease term and/or consideration have been revised or 3) if a full or partial termination has occurred. If an additional right-of use-asset has been obtained, the modification is treated as a separate contract and its classification is evaluated as a new lease arrangement. If only the lease term or consideration are changed, the lease liability is revalued with an offset to the lease asset and the lease classification is re-assessed. If a modification results in a full or partial termination of the lease, the lease liability is revalued through earnings along with a proportionate reduction in the value of the related lease asset and subsequent expense recognition is similar to a new lease arrangement. Lease assets are evaluated for impairment when triggering events occur, such as a change in management intent regarding the continued occupation of the leased space. If a lease asset is impaired, it is written down to the present value of estimated future cash flows and the prospective expense recognition for that lease follows the accelerated expense recognition methodology applicable to finance leases, even if it remains classified as an operating lease. Sublease arrangements are accounted for consistent with the lessor accounting described below. Sublease arrangements are evaluated to determine if changes to estimates for the primary lease are warranted or if the sublease terms reflect impairment of the related lease asset. Lease assets are recognized in Other assets and lease liabilities are recognized in Other liabilities in the Consolidated Condensed Statements of Condition. Since substantially all of its leasing arrangements relate to real estate, FHN records lease expense, and any related sublease income, within Occupancy expense in the Consolidated Condensed Statements of Income. Lessor. As a lessor, FHN also evaluates its lease arrangements to determine whether a finance lease or an operating lease exists and utilizes the rate implicit in the lease arrangement as the discount rate to calculate the present value of future cash flows. Depending upon the terms of the individual agreements, finance leases represent either sales-type or direct financing leases, both of which require de-recognition of the asset being leased with offsetting recognition of a lease receivable that is evaluated for impairment similar to loans. Currently, all of FHN’s lessor arrangements are considered operating leases. Lease income for operating leases is recognized over the life of the lease, generally on a straight line basis. Lease incentives and initial direct costs are capitalized and amortized over the estimated life of the lease. Lease income is not significant for any reporting periods and is classified as a reduction of Occupancy expense in the Consolidated Condensed Statements of Income. Summary of Accounting Changes. In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires a lessee to recognize in its statement of condition a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. ASU 2016-02 leaves lessor accounting largely unchanged from prior standards. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. All other leases must be classified as financing or operating leases which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. In July 2018, the FASB issued ASU 2018-11, “Leases - Targeted Improvements,” which provides an election for a cumulative effect adjustment to retained earnings upon initial adoption of ASU 2016-02. Alternatively, under the initial guidance of ASU 2016-02, lessees and lessors are required to recognize and measure leases at the beginning of the earliest comparative period presented using a modified retrospective approach. Both adoption alternatives include a number of optional practical expedients that entities may elect to apply, which would result in continuing to account for leases that commence before the effective date in accordance with previous requirements (unless the lease is modified) except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous requirements. ASU 2016-02 also requires expanded qualitative and quantitative disclosures to assess the amount, timing, and uncertainty of cash flows arising from lease arrangements. ASU 2016-02 and ASU 2018-11 are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Upon adoption, FHN utilized the cumulative effect transition alternative provided by ASU 2018-11. FHN utilized the lease classification practical expedients and the short-term lease exemption upon adoption. FHN also has elected to determine the discount rate on leases as of the effective date and elected to use hindsight in determining lease terms as well as impairments of lease assets resulting from lease abandonments upon adoption. The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011 In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). Capitalized implemented costs are required to be expensed over the term of the hosting arrangement which includes the non-cancellable period of the arrangement plus periods covered by (1) an option to extend the arrangement if the customer is reasonably certain to exercise that option, (2) an option to terminate the arrangement if the customer is reasonably certain not to exercise the termination option, and (3) an option to extend (or not to terminate) the arrangement in which exercise of the option is in the control of the vendor. ASU 2018-15 also requires application of the impairment guidance applicable to long-lived assets to the capitalized implementation costs. Amortization expense related to capitalized implementation costs must be presented in the same line item in the statement of income as the fees associated with the hosting element (service) of the arrangement and payments for capitalized implementation costs will be classified in the statement of cash flows in the same manner as payments made for fees associated with the hosting element. Capitalized implementation costs will be presented in the statement of financial position in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted. Adoption may be either fully retrospective or prospective only. FHN elected early adoption of ASU 2018-15 effective January 1, 2019 using the prospective transition method and the effects of adoption were not significant. In April 2019, the FASB issued ASU 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” which makes several revisions and clarifications to the accounting for these items. The revisions related to ASU 2016-03 (Topic 326) are discussed below. ASU 2019-04 clarifies several aspects of fair hedge accounting, including the application to partial term fair value hedges. ASU 2019-04 provides an election regarding the timing for amortization of basis adjustments to hedged items in fair value hedges, indicating that amortization may, but is not required to, commence prior to the end of the hedge relationship. ASU 2019-04 also provides additional guidance related to the application of the hypothetical derivative method and first-payments-received method in cash flow hedges. Further, ASU 2019-04 indicates that remeasurement of an equity security without a readily determinable fair value when an orderly transaction is identified for an identical or similar investment of the same issuer represents a non-recurring fair value measurement and the related disclosure requirements apply to the remeasurement event. The hedging updates are effective at the beginning of the first annual reporting period after issuance with early adoption permitted. The financial instruments measurement and disclosure changes are effective for fiscal years and interim periods beginning after December 15, 2019 with early adoption permitted. FHN early adopted these portions of ASU 2019-04 in second quarter 2019 and the effects were not significant based on its existing accounting practices. Accounting Changes Issued but Not Currently Effective In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments,” which revises the measurement and recognition of credit losses for assets measured at amortized cost (e.g., held-to-maturity (“HTM”) loans and debt securities) and available-for-sale (“AFS”) debt securities. Under ASU 2016-13, for assets measured at amortized cost, the current expected credit loss (“CECL”) is measured as the difference between amortized cost and the net amount expected to be collected. This represents a departure from existing GAAP as the “incurred loss” methodology for recognizing credit losses delays recognition until it is probable a loss has been incurred. Under CECL the full amount of expected credit losses will be recognized at the time of loan origination. The measurement of current expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Additionally, current disclosures of credit quality indicators in relation to the amortized cost of financing receivables will be further disaggregated by year of origination. ASU 2016-13 leaves the methodology for measuring credit losses on AFS debt securities largely unchanged, with the maximum credit loss representing the difference between amortized cost and fair value. However, such credit losses will be recognized through an allowance for credit losses, which permits recovery of previously recognized credit losses if circumstances change. ASU 2016-13 also revises the recognition of credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”). For PCD assets, the initial allowance for credit losses is added to the purchase price. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for PCD assets. Interest income for PCD assets will be recognized based on the effective interest rate, excluding the discount embedded in the purchase price that is attributable to the acquirer’s assessment of credit losses at acquisition. Currently, credit losses for purchased credit-impaired assets are included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit are reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses will be recognized through earnings upon acquisition and the entire premium or discount will be accreted to interest income over the remaining life of the loan. The provisions of ASU 2016-13 will be generally adopted through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in the year of adoption. Prospective implementation is required for debt securities for which an other-than-temporary-impairment (“OTTI”) had been previously recognized. Amounts previously recognized in accumulated other comprehensive income (“AOCI”) as of the date of adoption that relate to improvements in cash flows expected to be collected will continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption will be recorded in earnings when received. A prospective transition approach will be used for existing PCD assets where, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. Thus, an entity will not be required to reassess its purchased financial assets that exist as of the date of adoption to determine whether they would have met at acquisition the new criteria of more-than-insignificant credit deterioration since origination. An entity will accrete the remaining noncredit discount (based on the revised amortized cost basis) into interest income at the effective interest rate at the adoption date. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. FHN continues to evaluate the impact of ASU 2016-13, and is not currently able to reasonably estimate the impact the adoption will have on its consolidated financial position, results of operations, or cash flows. Adoption of ASU 2016-13 is likely to lead to significant changes in accounting policies and procedures related to FHN’s ALLL, and it is possible that the impact of the adoption could be material to FHN’s consolidated financial position and results of operations. To date, the Company has, completed model development activities, is finalizing model and accounting policy documentation including portfolio segmentation and measurement methodologies, is finalizing the implementation of the model platform, and assessing impacts to operational processes and internal controls. FHN intends to perform parallel calculations and analysis in fourth quarter 2019. At this time, FHN has performed estimations of the day 1 impact for internal use only as we continue to finalize all aspects of the CECL implementation. FHN has assessed several asset classes that are within the scope of CECL and determined that the adoption effects for the change in measurement of credit risk will be minimal for these classes. This includes Fed funds sold which have no history of credit losses due to their short (typically overnight) duration and counterparty risk assessment processes. This also includes securities borrowed and securities purchased under agreements to resell which have collateral maintenance agreements that incorporate master netting provisions resulting in minimal uncollateralized positions as of any date as evidenced by the disclosures provided in Note 16 - Master Netting and Similar Agreements-Repurchase, Reverse Repurchase, and Securities Borrowing Transactions. Additionally, FHN has also evaluated the composition of its AFS securities and determined that the changes in ASU 2016-13 will not have a significant effect on the current portfolio. ASU 2019-04 provides an election to either not measure or measure separately an allowance for credit losses for accrued interest receivable (“AIR"). Entities electing to not measure an allowance for AIR must write off uncollectible interest in a timely manner. Additionally, an election is provided for the write off of uncollectible interest to be recorded either as a reversal of interest income or a charge against the allowance for credit losses or a combination of both. Disclosures are required depending upon which elections are made. ASU 2019-04 also clarifies that when loans and securities are transferred between balance sheet categories (e.g., loans from held-for-investment to held-for-sale or securities from held-to-maturity to available-for-sale) the associated allowance for credit losses should be reversed to income and prospective accounting follows the requirements for the new classification. Further, ASU 2019-04 clarifies that recoveries should be incorporated within the estimation of the allowance for credit losses. Expected recoveries should not exceed the aggregate amount of prior write offs and expected future write offs. The inclusion of expected recoveries in the measurement of expected credit losses may result in a negative credit allowance in certain circumstances. Additionally, for collateral dependent financial assets, the allowance for credit losses that is added to the amortized cost basis should not exceed amounts previously written off. ASU 2019-04 also makes several changes when a discounted cash flow approach is used to measure expected credit losses. ASU 2019-04 removes ASU 2016-03’s prohibition of using projections of future interest rate environments when using a discounted cash flow method to measure expected credit losses on variable-rate financial instruments. If an entity uses projections or expectations of future interest rate environments in estimating expected cash flows, the same assumptions should be used in determining the effective interest rate used to discount those expected cash flows. The effective interest rate should also be adjusted to consider the effects of expected prepayments on the timing of expected future cash flows. ASU 2019-04 provides an election to adjust the effective interest rate used in discounting expected cash flows to isolate credit risk in measuring the allowance for credit losses. Further, the discount rate should not be adjusted for subsequent changes in expected prepayments if a financial asset is restructured in a troubled debt restructuring. Related to collateral-dependent financial assets, ASU 2019-04 requires inclusion of estimated costs to sell in the measurement of expected credit losses in situations where the entity intends to sell rather than operate the collateral. Additionally, the estimated costs to sell should be undiscounted when the entity intends to sell rather than operate the collateral. Finally, ASU 2019-04 specifies that contractual renewal or extension options, except those treated as derivatives, should be included in the determination of the contractual term for a financial asset when included in the original or modified contract as of the reporting date if they are not unconditionally cancellable by the entity. The effective date and transition requirements for these components of ASU 2019-04 are consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts. Based on its current practices for the timely write off uncollectible AIR, FHN intends to not measure an allowance for credit losses for AIR and to continue recognition of related write offs as a reversal of interest income. In May 2019, the FASB issued ASU 2019-05, “Financial Instruments - Credit Losses, Targeted Transition Relief,” which provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis that are in the scope of ASU 2016-13, applied on an instrument-by-instrument basis. The fair value option election does not apply to held-to-maturity debt securities. The effective date and transition requirements for ASU 2019-05 are consistent with the requirements for ASU 2016-13. FHN is evaluating the accounting and disclosure requirements for applying the fair value option in comparison to the requirements for applying CECL for certain in-scope asset classes other than loans. In September 2019, the FASB approved an ASU for issuance (the “Proposed ASU”), “Codification Improvements to Topic 326, Financial Instruments-Credit Losses” which clarifies that expected recoveries should be included in the amortized cost basis previously written off or expected to be written off in the valuation allowance for PCD assets. The Proposed ASU also clarifies that recoveries or expected recoveries of the unamortized noncredit discount or premium should not be included in the allowance for credit losses. The Proposed ASU provides specific transition relief for exiting troubled debt restructurings and extends the disclosure relief of ASU 2019-04 for accrued interest receivable balances to additional relevant disclosures involving amortized cost basis. Related to the assessment of credit risk for collateralized assets, the Proposed ASU indicates that an entity should assess whether it reasonably expects the borrower will be able to continually replenish collateral securing the financial asset to apply the practical expedient of ASU 2016-13 while also requiring an estimation of expected credit losses for any difference between the amount of the amortized cost basis that is greater than the fair value of the collateral securing the financial asset. The effective date and transition requirements for The Proposed ASU will be consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts and the effects will be embedded within the adoption effects of ASU 2016-13. Consistent with non-PCD assets, the effect of including recoveries and expected recoveries within the measurement of expected credit losses for PCD assets may result in a negative credit allowance in certain circumstances.

Acquisitions and Divestitures

Acquisitions and Divestitures	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures On November 4, 2019, FHN and IBERIABANK Corporation (“IBKC”) announced that they had entered into an agreement and plan of merger under which IBKC will merge with FHN in a merger-of-equals transaction. IBKC, headquartered in Lafayette, Louisiana, has 319 offices in 12 states, mostly in the southern and southeastern U.S., and has reported $31.7 billion of total assets, $23.7 billion in loans, and $25.0 billion in deposits, at September 30, 2019. IBKC‘s common stock is listed on The NASDAQ Stock Market, LLC under the symbol IBKC. Under the merger agreement, each share of IBKC common stock will be converted into 4.584 shares of FHN common stock. After closing, FHN expects IBKC common shares will be converted into approximately 44 percent of the then-outstanding shares of FHN common stock. The merger agreement requires FHN to expand its board of directors to seventeen persons; after closing, eight board positions will be held by current IBKC directors, and nine will be held by current FHN directors. FHN expects the transaction to close in second quarter 2020, subject to regulatory approvals, approval by the shareholders of FHN and of IBKC, and other customary conditions. On November 8, 2019, FHN announced an agreement to purchase 30 branches from SunTrust Banks, Inc. in connection with SunTrust’s proposed merger with BB&T Corporation. As part of the agreement, FHN will assume approximately $2.4 billion of branch deposits for a 3.40 percent deposit premium and purchase approximately $410 million of branch loans. The branches are in communities in North Carolina ( 20 branches), Virginia ( 8 branches), and Georgia ( 2 branches). FHN expects the purchase to close in first quarter 2020, subject to regulatory approvals and other customary closing conditions. On November 30, 2017, FHN completed its acquisition of Capital Bank Financial Corporation ("CBF") and its subsidiaries, including Capital Bank Corporation for an aggregate of 92,042,232 shares of FHN common stock and $423.6 million in cash in a transaction valued at $2.2 billion . In second quarter 2018, FHN canceled 2,373,220 common shares which had been issued but set aside for certain shareholders of CBF who have commenced a dissenters' appraisal process resulting in a reduction in equity consideration and an increase in cash consideration of $46.0 million . In October 2019 this matter was resolved; the financial statement effects were not significant. CBF operated 178 branches in North and South Carolina, Tennessee, Florida and Virginia at the time of closing. In relation to the acquisition, FHN acquired approximately $9.9 billion in assets, including approximately $7.3 billion in loans and $1.2 billion in AFS securities, and assumed approximately $8.1 billion of CBF deposits. FHN recorded goodwill of approximately $1.2 billion , representing the excess of acquisition consideration over the estimated fair value of net assets acquired. On March 23, 2018, FHN divested two branches, including approximately $30 million of deposits and $2 million of loans. The branches, both in Greeneville, Tennessee, were divested in connection with First Horizon's agreement with the U.S. Department of Justice and commitments to the Board of Governors of the Federal Reserve System, which were entered into in connection with a customary review of FHN's merger with CBF. In second quarter 2018, FHN sold approximately $120 million UPB of subprime auto loans. These loans, originally acquired as part of the CBF acquisition, did not fit within FHN's risk profile. Based on the sales price, a measurement period adjustment to the acquisition-date fair value of the subprime auto loans was recorded in second quarter 2018. A measurement period adjustment was made in fourth quarter 2018 for other consumer loans acquired from CBF based on pricing information received from potential buyers. See Note 2- Acquisitions and Divestitures in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2018, for additional information about the CBF acquisition and other acquisitions. Expenses related to FHN's merger and integration activities are recorded in FHN's Corporate segment. Total merger and integration expense recognized for the three and nine months ended September 30, 2019 and 2018 are presented in the table below: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Professional fees (a) $ 3,507 $ 4,593 $ 9,852 $ 19,217 Employee compensation, incentives and benefits (b) 1,473 3,112 4,462 12,198 Contract employment and outsourcing (c) 223 599 240 3,701 Occupancy (d) (76 ) 115 1,547 2,374 Miscellaneous expense (e) 1,022 1,381 2,170 6,514 All other expense (f) 2,840 1,549 5,025 41,835 Total $ 8,989 $ 11,349 $ 23,296 $ 85,839 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily relates to fees for temporary assistance for merger and integration activities. (d) Primarily relates to expenses associated with lease exits. (e) Consists of fees for operations services, communications and courier, equipment rentals, depreciation, and maintenance, supplies, travel and entertainment, computer software, and advertising and public relations. (f) Primarily relates to contract termination charges, lease buyouts, costs of shareholder matters and asset impairments related to the integration, as well as other miscellaneous expenses. In addition to the transactions mentioned above, FHN acquires or divests assets from time to time in transactions that are considered business combinations or divestitures but are not material to FHN individually or in the aggregate. In April 2019, FHN sold a subsidiary acquired as part of the CBF acquisition that did not fit within FHN's risk profile. The sale resulted in the removal of approximately $25 million

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2019
Marketable Securities [Abstract]
Investment Securities	Investment Securities The following tables summarize FHN’s investment securities on September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ — $ 100 Government agency issued mortgage-backed securities (“MBS”) 2,249,973 37,204 (2,745 ) 2,284,432 Government agency issued collateralized mortgage obligations (“CMO”) 1,775,941 13,978 (5,699 ) 1,784,220 Other U.S. government agencies 237,414 3,919 — 241,333 Corporates and other debt 40,105 425 (90 ) 40,440 States and municipalities 46,658 3,435 (22 ) 50,071 $ 4,350,191 $ 58,961 $ (8,556 ) 4,400,596 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 15,249 Total securities available-for-sale (b) $ 4,415,845 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (13 ) $ 9,987 Total securities held-to-maturity $ 10,000 $ — $ (13 ) $ 9,987 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value for additional information. (b) Includes $3.7 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 2018 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (2 ) $ 98 Government agency issued MBS 2,473,687 4,819 (58,400 ) 2,420,106 Government agency issued CMO 2,006,488 888 (48,681 ) 1,958,695 Other U.S. government agencies 149,050 809 (73 ) 149,786 Corporates and other debt 55,383 388 (461 ) 55,310 State and municipalities 32,473 314 (214 ) 32,573 $ 4,717,181 $ 7,218 $ (107,831 ) 4,616,568 AFS securities recorded at fair value through earnings: SBA-interest only strips (a) 9,902 Total securities available-for-sale (b) $ 4,626,470 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (157 ) $ 9,843 Total securities held-to-maturity $ 10,000 $ — $ (157 ) $ 9,843 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value of Assets and Liabilities for additional information. (b) Includes $3.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. The amortized cost and fair value by contractual maturity for the available-for-sale and held-to-maturity debt securities portfolios on September 30, 2019 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 20,161 $ 20,289 After 1 year; within 5 years — — 223,908 228,037 After 5 years; within 10 years 10,000 9,987 755 2,444 After 10 years — — 79,453 96,423 Subtotal 10,000 9,987 324,277 347,193 Government agency issued MBS and CMO (a) — — 4,025,914 4,068,652 Total $ 10,000 $ 9,987 $ 4,350,191 $ 4,415,845 (a) Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The table below provides information on gross gains and gross losses from debt investment securities for the three and nine months ended September 30 , 2019 and 2018. Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Gross gains on sales of securities $ — $ — $ — $ 52 Gross (losses) on sales of securities — — (267 ) — Net gain/(loss) on sales of securities (a) $ — $ — $ (267 ) $ 52 (a) Cash proceeds for the three months ended September 30, 2019 were not material. Cash proceeds for the nine months ended September 30, 2019 were $182.8 million . Cash proceeds for the three and nine months ended September 30, 2018 were not material. The following tables provide information on investments within the available-for-sale portfolio that had unrealized losses as of September 30, 2019 and December 31, 2018 : As of September 30, 2019 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 100 $ — $ 100 $ — Government agency issued MBS 78,633 (222 ) 219,235 (2,523 ) 297,868 (2,745 ) Government agency issued CMO 234,437 (681 ) 397,826 (5,018 ) 632,263 (5,699 ) Corporates and other debt — — 25,160 (90 ) 25,160 (90 ) States and municipalities 1,468 (22 ) — — 1,468 (22 ) Total temporarily impaired securities $ 314,538 $ (925 ) $ 642,321 $ (7,631 ) $ 956,859 $ (8,556 ) As of December 31, 2018 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 98 $ (2 ) $ 98 $ (2 ) Government agency issued MBS 597,008 (12,335 ) 1,537,106 (46,065 ) 2,134,114 (58,400 ) Government agency issued CMO 290,863 (2,860 ) 1,560,420 (45,821 ) 1,851,283 (48,681 ) Other U.S. government agencies 29,776 (73 ) — — 29,776 (73 ) Corporates and other debt 25,114 (344 ) 15,008 (117 ) 40,122 (461 ) States and municipalities 17,292 (214 ) — — 17,292 (214 ) Total temporarily impaired securities $ 960,053 $ (15,826 ) $ 3,112,632 $ (92,005 ) $ 4,072,685 $ (107,831 ) FHN has reviewed debt investment securities that were in unrealized loss positions in accordance with its accounting policy for OTTI and does not consider them other-than-temporarily impaired. For debt securities with unrealized losses, FHN does not intend to sell them and it is more-likely-than-not that FHN will not be required to sell them prior to recovery. The decline in value is primarily attributable to changes in interest rates and not credit losses. The carrying amount of equity investments without a readily determinable fair value was $25.1 million and $21.3 million at September 30, 2019 and December 31, 2018, respectively. The year-to-date 2019 and 2018 gross amounts of upward and downward valuation adjustments were not significant. Unrealized gains of $.4 million and $1.0 million were recognized in the three months ended September 30, 2019 and 2018, respectively and $4.9 million and $2.1 million were recognized in the nine months ended September 30, 2019 and 2018, respectively, for equity investments with readily determinable fair values.

Loans

Loans	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Loans	Loans The following table provides the balance of loans, net of unearned income, by portfolio segment as of September 30, 2019 and December 31, 2018 : September 30 December 31 (Dollars in thousands) 2019 2018 Commercial (a): Commercial, financial, and industrial $ 20,293,930 $ 16,514,328 Commercial real estate 4,228,598 4,030,870 Consumer: Consumer real estate (b) 6,062,829 6,249,516 Permanent mortgage 182,467 222,448 Credit card & other 493,009 518,370 Loans, net of unearned income $ 31,260,833 $ 27,535,532 Allowance for loan losses 193,149 180,424 Total net loans $ 31,067,684 $ 27,355,108 (a) In third quarter 2019, FHN corrected a previous mis-classification of commercial loans and reclassified approximately $410 million of market investor CRE loans from the C&I portfolio to the CRE portfolio. These loans were identified during an internal review and assessment by management of certain loan populations, a portion of which relate to loans acquired as part of the Capital Bank merger. The reclassification of these loan balances between regional banking portfolios did not have an impact on FHN’s consolidated period-end or average balance sheet and had an immaterial effect on the allowance for loan losses. No adjustments were made to prior periods as the impact of the reclassification, including the effect on the allowance for loan losses was deemed to be immaterial in all periods. (b) Balances as of September 30, 2019 and December 31, 2018 , include $12.4 million and $16.2 million of restricted real estate loans, respectively. See Note 14—Variable Interest Entities for additional information. COMPONENTS OF THE LOAN PORTFOLIO The loan portfolio is disaggregated into segments and then further disaggregated into classes for certain disclosures. GAAP defines a portfolio segment as the level at which an entity develops and documents a systematic method for determining its allowance for credit losses. A class is generally determined based on the initial measurement attribute (i.e., amortized cost or purchased credit-impaired), risk characteristics of the loan, and FHN’s method for monitoring and assessing credit risk. Commercial loan portfolio segments include commercial, financial and industrial (“C&I”) and commercial real estate ("CRE"). Commercial classes within C&I include general C&I, loans to mortgage companies, the trust preferred loans (“TRUPS”) (i.e. long-term unsecured loans to bank and insurance-related businesses) portfolio and purchased credit-impaired (“PCI”) loans. Loans to mortgage companies include commercial lines of credit to qualified mortgage companies primarily for the temporary warehousing of eligible mortgage loans prior to the borrower’s sale of those mortgage loans to third party investors. Commercial classes within CRE include income CRE, residential CRE and PCI loans. Consumer loan portfolio segments include consumer real estate, permanent mortgage, and the credit card and other portfolio. Consumer classes include home equity lines of credit (“HELOCs”), real estate (“R/E”) installment and PCI loans within the consumer real estate segment, permanent mortgage (which is both a segment and a class), and credit card and other. Concentrations FHN has a concentration of residential real estate loans ( 20 percent of total loans), the majority of which is in the consumer real estate segment ( 19 percent of total loans). Loans to finance and insurance companies total $2.8 billion ( 13 percent of the C&I portfolio, or 9 percent of the total loans). FHN had loans to mortgage companies totaling $5.0 billion ( 25 percent of the C&I segment, or 16 percent of total loans) as of September 30, 2019 . As a result, 38 percent of the C&I segment is sensitive to impacts on the financial services industry. Purchased Credit-Impaired Loans The following table presents a rollforward of the accretable yield for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Balance, beginning of period $ 11,600 $ 14,474 $ 13,375 $ 15,623 Accretion (1,440 ) (2,183 ) (4,586 ) (6,927 ) Adjustment for payoffs (369 ) (840 ) (1,084 ) (2,559 ) Adjustment for charge-offs (59 ) (122 ) (314 ) (1,046 ) Adjustment for pool excess recovery — (123 ) — (123 ) Increase/(decrease) in accretable yield (a) 2,416 4,062 5,080 10,721 Disposal (4 ) — (4 ) (240 ) Other (35 ) — (358 ) (181 ) Balance, end of period $ 12,109 $ 15,268 $ 12,109 $ 15,268 (a) Includes changes in the accretable yield due to both transfers from the nonaccretable difference and the impact of changes in the expected timing and amounts of the cash flows. At September 30, 2019 , the ALLL related to PCI loans was $2.2 million compared to $4.0 million at December 31, 2018 . A loan loss provision expense related to PCI loans of $.3 million was recognized during the three months ended September 30, 2019 , as compared to a loan loss provision expense of $.9 million recognized during the three months ended September 30, 2018 . A loan loss provision credit related to PCI loans of $1.5 million was recognized during the nine months ended September 30, 2019 , as compared to a loan loss provision expense of $3.5 million recognized during the nine months ended September 30, 2018 . The following table reflects the outstanding principal balance and carrying amounts of the acquired PCI loans as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 (Dollars in thousands) Carrying value Unpaid balance Carrying value Unpaid balance Commercial, financial and industrial $ 28,777 $ 30,478 $ 38,873 $ 44,259 Commercial real estate 6,596 7,268 15,197 17,232 Consumer real estate 25,514 28,591 30,723 34,820 Credit card and other 637 790 1,627 1,879 Total $ 61,524 $ 67,127 $ 86,420 $ 98,190 Impaired Loans The following tables provide information at September 30, 2019 and December 31, 2018 , by class related to individually impaired loans and consumer TDRs, regardless of accrual status. Recorded investment is defined as the amount of the investment in a loan, excluding any valuation allowance but including any direct write-down of the investment. For purposes of this disclosure, PCI loans and the TRUPS valuation allowance have been excluded. September 30, 2019 December 31, 2018 (Dollars in thousands) Recorded Unpaid Related Recorded Unpaid Related Impaired loans with no related allowance recorded: Commercial: General C&I $ 63,070 $ 78,914 $ — $ 42,902 $ 45,387 $ — Income CRE 1,940 1,940 — 1,589 1,589 — Total $ 65,010 $ 80,854 $ — $ 44,491 $ 46,976 $ — Consumer: HELOC (a) $ 6,614 $ 12,579 $ — $ 8,645 $ 16,648 $ — R/E installment loans (a) 5,042 5,853 — 4,314 4,796 — Permanent mortgage (a) 2,791 4,619 — 3,601 6,003 — Total $ 14,447 $ 23,051 $ — $ 16,560 $ 27,447 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 19,508 $ 23,728 $ 4,287 $ 2,802 $ 2,802 $ 149 TRUPS 2,725 3,700 140 2,888 3,700 925 Income CRE — — — 377 377 — Total $ 22,233 $ 27,428 $ 4,427 $ 6,067 $ 6,879 $ 1,074 Consumer: HELOC $ 58,924 $ 62,514 $ 7,457 $ 66,482 $ 69,610 $ 11,241 R/E installment loans 37,735 38,714 4,901 38,993 39,851 6,743 Permanent mortgage 61,511 71,406 8,363 67,245 78,010 9,419 Credit card & other 720 720 450 695 695 337 Total $ 158,890 $ 173,354 $ 21,171 $ 173,415 $ 188,166 $ 27,740 Total commercial $ 87,243 $ 108,282 $ 4,427 $ 50,558 $ 53,855 $ 1,074 Total consumer $ 173,337 $ 196,405 $ 21,171 $ 189,975 $ 215,613 $ 27,740 Total impaired loans $ 260,580 $ 304,687 $ 25,598 $ 240,533 $ 269,468 $ 28,814 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 (Dollars in thousands) Average Interest Average Interest Average Interest Average Interest Impaired loans with no related allowance recorded: Commercial: General C&I $ 64,558 $ 173 $ 23,740 $ 203 $ 62,553 $ 530 $ 21,506 $ 561 Loans to mortgage companies 18,628 — — — 12,419 — — — Income CRE 1,690 3 1,680 12 1,576 30 1,379 37 Residential CRE — — 500 — — — 416 — Total $ 84,876 $ 176 $ 25,920 $ 215 $ 76,548 $ 560 $ 23,301 $ 598 Consumer: HELOC (a) $ 6,495 $ — $ 8,343 $ — $ 6,852 $ — $ 8,878 $ — R/E installment loans (a) 5,304 — 4,631 — 5,384 — 4,032 — Permanent mortgage (a) 2,843 — 3,949 — 3,180 — 4,638 — Total $ 14,642 $ — $ 16,923 $ — $ 15,416 $ — $ 17,548 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 14,620 $ 4 $ 16,375 $ — $ 10,892 $ 4 $ 16,038 $ — TRUPS 2,750 — 2,960 — 2,806 — 3,004 — Income CRE 169 — 199 5 294 9 335 5 Residential CRE — — — — — — 133 — Total $ 17,539 $ 4 $ 19,534 $ 5 $ 13,992 $ 13 $ 19,510 $ 5 Consumer: HELOC $ 60,312 $ 449 $ 68,913 $ 556 $ 62,650 $ 1,475 $ 70,452 $ 1,711 R/E installment loans 39,924 250 39,147 246 41,475 792 40,512 764 Permanent mortgage 62,652 537 71,898 585 64,700 1,632 74,617 1,737 Credit card & other 710 4 578 3 697 13 626 9 Total $ 163,598 $ 1,240 $ 180,536 $ 1,390 $ 169,522 $ 3,912 $ 186,207 $ 4,221 Total commercial $ 102,415 $ 180 $ 45,454 $ 220 $ 90,540 $ 573 $ 42,811 $ 603 Total consumer $ 178,240 $ 1,240 $ 197,459 $ 1,390 $ 184,938 $ 3,912 $ 203,755 $ 4,221 Total impaired loans $ 280,655 $ 1,420 $ 242,913 $ 1,610 $ 275,478 $ 4,485 $ 246,566 $ 4,824 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Asset Quality Indicators FHN employs a dual grade commercial risk grading methodology to assign an estimate for the probability of default (“PD”) and the loss given default (“LGD”) for each commercial loan using factors specific to various industry, portfolio, or product segments that result in a rank ordering of risk and the assignment of grades PD 1 to PD 16 . This credit grading system is intended to identify and measure the credit quality of the loan portfolio by analyzing the migration of loans between grading categories. It is also integral to the estimation methodology utilized in determining the allowance for loan losses since an allowance is established for pools of commercial loans based on the credit grade assigned. Each PD grade corresponds to an estimated one-year default probability percentage; a PD 1 has the lowest expected default probability, and probabilities increase as grades progress down the scale. PD 1 through PD 12 are “pass” grades. PD grades 13 - 16 correspond to the regulatory-defined categories of special mention ( 13 ), substandard ( 14 ), doubtful ( 15 ), and loss ( 16 ). Pass loan grades are required to be reassessed annually or earlier whenever there has been a material change in the financial condition of the borrower or risk characteristics of the relationship. All commercial loans over $1 million and certain commercial loans over $500,000 that are graded 13 or worse are reassessed on a quarterly basis. Loan grading discipline is regularly reviewed internally by Credit Assurance Services to determine if the process continues to result in accurate loan grading across the portfolio. FHN may utilize availability of guarantors/sponsors to support lending decisions during the credit underwriting process and when determining the assignment of internal loan grades. LGD grades are assigned based on a scale of 1 - 12 and represent FHN’s expected recovery based on collateral type in the event a loan defaults. See Note 5 – Allowance for Loan Losses for further discussion on the credit grading system. The following tables provide the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 651,636 $ — $ — $ 2,394 $ — $ 654,030 3 % $ 68 2 798,897 — — 49,116 44 848,057 3 197 3 654,023 1,127,283 3,314 407,538 1,144 2,193,302 9 283 4 1,219,024 859,310 35,786 550,707 512 2,665,339 11 813 5 2,004,530 683,685 80,765 1,026,006 10,338 3,805,324 16 9,398 6 2,349,020 1,515,178 33,815 741,795 21,484 4,661,292 19 12,139 7 2,835,023 505,068 11,446 651,383 34,688 4,037,608 17 20,443 8 1,536,468 210,719 — 249,301 22,253 2,018,741 8 20,488 9 992,076 123,013 26,123 158,079 14,759 1,314,050 5 15,027 10 626,518 7,439 18,536 56,241 3,236 711,970 3 9,732 11 469,096 — — 62,676 2,489 534,261 2 11,114 12 267,147 5,856 — 40,484 1,386 314,873 1 9,233 13 294,924 — 5,786 76,879 1,309 378,898 2 11,906 14,15,16 227,322 — — 33,432 512 261,266 1 23,586 Collectively evaluated for impairment 14,925,704 5,037,551 215,571 4,106,031 114,154 24,399,011 100 144,427 Individually evaluated for impairment 82,578 — 2,725 1,940 — 87,243 — 4,427 Purchased credit-impaired loans 29,801 — — 5,082 1,391 36,274 — 901 Total commercial loans $ 15,038,083 $ 5,037,551 $ 218,296 $ 4,113,053 $ 115,545 $ 24,522,528 100 % $ 149,755 December 31, 2018 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 610,177 $ — $ — $ 12,586 $ — $ 622,763 3 % $ 100 2 835,776 — — 1,688 29 837,493 4 274 3 782,362 716,971 — 289,594 147 1,789,074 9 315 4 1,223,092 394,862 43,220 563,243 — 2,224,417 11 686 5 1,920,034 277,814 77,751 798,509 14,150 3,088,258 15 8,919 6 1,722,136 365,341 45,609 657,628 33,759 2,824,473 14 8,141 7 2,690,784 96,603 11,446 538,909 26,135 3,363,877 16 16,906 8 1,337,113 53,224 — 265,901 20,320 1,676,558 8 18,545 9 1,472,852 96,292 45,117 455,184 29,849 2,099,294 10 15,454 10 490,795 13,260 18,536 60,803 3,911 587,305 3 8,675 11 311,967 — — 66,986 788 379,741 2 7,973 12 244,867 9,379 — 82,574 5,717 342,537 2 6,972 13 285,987 — 5,786 55,408 251 347,432 2 10,094 14,15,16 224,853 — — 28,835 837 254,525 1 23,307 Collectively evaluated for impairment 14,152,795 2,023,746 247,465 3,877,848 135,893 20,437,747 100 126,361 Individually evaluated for impairment 45,704 — 2,888 1,966 — 50,558 — 1,074 Purchased credit-impaired loans 41,730 — — 12,730 2,433 56,893 — 2,823 Total commercial loans $ 14,240,229 $ 2,023,746 $ 250,353 $ 3,892,544 $ 138,326 $ 20,545,198 100 % $ 130,258 (a) Balances presented net of a $19.1 million valuation allowance as of September 30, 2019 , and a $20.2 million valuation allowance as of December 31, 2018 . The consumer portfolio is comprised primarily of smaller-balance loans which are very similar in nature in that most are standard products and are backed by residential real estate. Because of the similarities of consumer loan-types, FHN is able to utilize the Fair Isaac Corporation (“FICO”) score, among other attributes, to assess the credit quality of consumer borrowers. FICO scores are refreshed on a quarterly basis in an attempt to reflect the recent risk profile of the borrowers. Accruing delinquency amounts are indicators of asset quality within the credit card and other consumer portfolio. The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC, real estate installment, and permanent mortgage classes of loans as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 HELOC R/E Installment Loans Permanent Mortgage HELOC R/E Installment Loans Permanent Mortgage FICO score 740 or greater 61.9 % 72.9 % 47.9 % 61.4 % 71.3 % 51.8 % FICO score 720-739 8.8 8.1 7.9 8.5 8.8 7.6 FICO score 700-719 7.3 6.2 11.0 7.6 7.0 10.6 FICO score 660-699 10.5 7.4 16.7 10.9 7.6 14.7 FICO score 620-659 5.1 2.9 8.2 5.1 2.8 6.5 FICO score less than 620 (a) 6.4 2.5 8.3 6.5 2.5 8.8 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % (a) For this group, a majority of the loan balances had FICO scores at the time of the origination that exceeded 620 but have since deteriorated as the loans have seasoned. Nonaccrual and Past Due Loans The following table reflects accruing and non-accruing loans by class on September 30, 2019 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,914,990 $ 18,979 $ 334 $ 14,934,303 $ 43,877 $ 960 $ 29,142 $ 73,979 $ 15,008,282 Loans to mortgage companies 5,037,551 — — 5,037,551 — — — — 5,037,551 TRUPS (a) 215,571 — — 215,571 — — 2,725 2,725 218,296 Purchased credit-impaired loans 27,169 773 1,859 29,801 — — — — 29,801 Total commercial (C&I) 20,195,281 19,752 2,193 20,217,226 43,877 960 31,867 76,704 20,293,930 Commercial real estate: Income CRE 4,104,826 1,208 — 4,106,034 — — 1,937 1,937 4,107,971 Residential CRE 114,154 — — 114,154 — — — — 114,154 Purchased credit-impaired loans 6,082 349 42 6,473 — — — — 6,473 Total commercial real estate 4,225,062 1,557 42 4,226,661 — — 1,937 1,937 4,228,598 Consumer real estate: HELOC 1,267,603 9,694 6,673 1,283,970 45,456 6,601 7,767 59,824 1,343,794 R/E installment loans 4,659,224 8,032 5,648 4,672,904 13,068 2,420 3,911 19,399 4,692,303 Purchased credit-impaired loans 21,245 1,938 3,549 26,732 — — — — 26,732 Total consumer real estate 5,948,072 19,664 15,870 5,983,606 58,524 9,021 11,678 79,223 6,062,829 Permanent mortgage 161,198 5,338 1,644 168,180 8,401 373 5,513 14,287 182,467 Credit card & other: Credit card 200,696 1,264 1,127 203,087 — — — — 203,087 Other 286,983 1,728 183 288,894 72 76 196 344 289,238 Purchased credit-impaired loans 371 260 53 684 — — — — 684 Total credit card & other 488,050 3,252 1,363 492,665 72 76 196 344 493,009 Total loans, net of unearned income $ 31,017,663 $ 49,563 $ 21,112 $ 31,088,338 $ 110,874 $ 10,430 $ 51,191 $ 172,495 $ 31,260,833 (a) TRUPS is presented net of the valuation allowance of $19.1 million . The following table reflects accruing and non-accruing loans by class on December 31, 2018 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,153,275 $ 8,234 $ 102 $ 14,161,611 $ 26,325 $ 5,537 $ 5,026 $ 36,888 $ 14,198,499 Loans to mortgage companies 2,023,746 — — 2,023,746 — — — — 2,023,746 TRUPS (a) 247,465 — — 247,465 — — 2,888 2,888 250,353 Purchased credit-impaired loans 39,433 624 1,673 41,730 — — — — 41,730 Total commercial (C&I) 16,463,919 8,858 1,775 16,474,552 26,325 5,537 7,914 39,776 16,514,328 Commercial real estate: Income CRE 3,876,229 626 — 3,876,855 30 — 2,929 2,959 3,879,814 Residential CRE 135,861 — — 135,861 32 — — 32 135,893 Purchased credit-impaired loans 13,308 103 1,752 15,163 — — — — 15,163 Total commercial real estate 4,025,398 729 1,752 4,027,879 62 — 2,929 2,991 4,030,870 Consumer real estate: HELOC 1,443,651 11,653 10,129 1,465,433 49,009 3,314 8,781 61,104 1,526,537 R/E installment loans 4,652,658 10,470 6,497 4,669,625 15,146 1,924 4,474 21,544 4,691,169 Purchased credit-impaired loans 24,096 2,094 5,620 31,810 — — — — 31,810 Total consumer real estate 6,120,405 24,217 22,246 6,166,868 64,155 5,238 13,255 82,648 6,249,516 Permanent mortgage 193,591 2,585 4,562 200,738 11,227 996 9,487 21,710 222,448 Credit card & other: Credit card 188,009 2,133 1,203 191,345 — — — — 191,345 Other 320,551 3,570 526 324,647 110 60 454 624 325,271 Purchased credit-impaired loans 746 611 397 1,754 — — — — 1,754 Total credit card & other 509,306 6,314 2,126 517,746 110 60 454 624 518,370 Total loans, net of unearned income $ 27,312,619 $ 42,703 $ 32,461 $ 27,387,783 $ 101,879 $ 11,831 $ 34,039 $ 147,749 $ 27,535,532 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $20.2 million . Troubled Debt Restructurings As part of FHN’s ongoing risk management practices, FHN attempts to work with borrowers when necessary to extend or modify loan terms to better align with their current ability to repay. Extensions and modifications to loans are made in accordance with internal policies and guidelines which conform to regulatory guidance. Each occurrence is unique to the borrower and is evaluated separately. A modification is classified as a TDR if the borrower is experiencing financial difficulty and it is determined that FHN has granted a concession to the borrower. FHN may determine that a borrower is experiencing financial difficulty if the borrower is currently in default on any of its debt, or if it is probable that a borrower may default in the foreseeable future. Many aspects of a borrower’s financial situation are assessed when determining whether they are experiencing financial difficulty. Concessions could include extension of the maturity date, reductions of the interest rate (which may make the rate lower than current market for a new loan with similar risk), reduction or forgiveness of accrued interest, or principal forgiveness. The assessments of whether a borrower is experiencing (or is likely to experience) financial difficulty, and whether a concession has been granted, are subjective in nature and management’s judgment is required when determining whether a modification is classified as a TDR. For all classes within the commercial portfolio segment, TDRs are typically modified through forbearance agreements (generally 6 to 12 months ). Forbearance agreements could include reduced interest rates, reduced payments, release of guarantor, or entering into short sale agreements. FHN’s proprietary modification programs for consumer loans are generally structured using parameters of U.S. government-sponsored programs such as the former Home Affordable Modification Program (“HAMP”). Within the HELOC and R/E installment loans classes of the consumer portfolio segment, TDRs are typically modified by reducing the interest rate (in increments of 25 basis points to a minimum of 1 percent for up to 5 years ) and a possible maturity date extension to reach an affordable housing debt-to-income ratio. After 5 years , the interest rate generally returns to the original interest rate prior to modification; for certain modifications, the modified interest rate increases 2 percent per year until the original interest rate prior to modification is achieved. Permanent mortgage TDRs are typically modified by reducing the interest rate (in increments of 25 basis points to a minimum of 2 percent for up to 5 years ) and a possible maturity date extension to reach an affordable housing debt-to-income ratio. After 5 years , the interest rate steps up 1 percent every year until it reaches the Federal Home Loan Mortgage Corporation Weekly Survey Rate cap. Contractual maturities may be extended to 40 years on permanent mortgages and to 30 years for consumer real estate loans. Within the credit card class of the consumer portfolio segment, TDRs are typically modified through either a short-term credit card hardship program or a longer-term credit card workout program. In the credit card hardship program, borrowers may be granted rate and payment reductions for 6 months to 1 year . In the credit card workout program, customers are granted a rate reduction to 0 percent and term extensions for up to 5 years to pay off the remaining balance. Despite the absence of a loan modification, the discharge of personal liability through bankruptcy proceedings is considered a concession. As a result, FHN classifies all non-reaffirmed residential real estate loans discharged in Chapter 7 bankruptcy as nonaccruing TDRs. On September 30, 2019 and December 31, 2018 , FHN had $220.0 million and $228.2 million of portfolio loans classified as TDRs, respectively. For TDRs in the loan portfolio, FHN had loan loss reserves of $21.2 million , or 10 percent as of September 30, 2019 , and $27.7 million , or 12 percent as of December 31, 2018 . Additionally, $52.6 million and $57.8 million of loans held-for-sale as of September 30, 2019 and December 31, 2018 , respectively, were classified as TDRs. The following tables reflect portfolio loans that were classified as TDRs during the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 1 $ 62 $ 59 4 $ 14,179 $ 14,101 Total commercial (C&I) 1 62 59 4 14,179 14,101 Commercial real estate: Income CRE — — — — — — Total commercial real estate — — — — — — Consumer real estate: HELOC 13 1,638 1,631 57 7,013 6,950 R/E installment loans 16 1,771 1,854 77 9,261 9,292 Total consumer real estate 29 3,409 3,485 134 16,274 16,242 Permanent mortgage — — — 5 1,469 1,498 Credit card & other 35 134 126 68 317 300 Total troubled debt restructurings 65 $ 3,605 $ 3,670 211 $ 32,239 $ 32,141 Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 1 $ 25,591 $ 25,439 9 $ 27,639 $ 27,190 Total commercial (C&I) 1 25,591 25,439 9 27,639 27,190 Commercial real estate: Income CRE 1 442 442 4 643 637 Total commercial real estate 1 442 442 4 643 637 Consumer real estate: HELOC 15 1,057 1,041 79 7,641 7,580 R/E installment loans 62 4,561 4,356 77 5,944 5,738 Total consumer real estate 77 5,618 5,397 156 13,585 13,318 Permanent mortgage — — — 5 709 713 Credit card & other 12 65 59 80 370 350 Total troubled debt restructurings 91 $ 31,716 $ 31,337 254 $ 42,946 $ 42,208 The following tables present TDRs which re-defaulted during the three and nine months ended September 30, 2019 and 2018 , and as to which the modification occurred 12 months or less prior to the re-default. For purposes of this disclosure, FHN generally defines payment default as 30 or more days past due. Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Commercial (C&I): General C&I — $ — — $ — Total commercial (C&I) — — — — Consumer real estate: HELOC 2 99 4 198 R/E installment loans — — 1 38 Total consumer real estate 2 99 5 236 Permanent mortgage 1 7 1 7 Credit card & other 8 45 23 77 Total troubled debt restructurings 11 $ 151 29 $ 320 Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Commercial (C&I): General C&I 1 $ 321 2 $ 579 Total commercial (C&I) 1 321 2 579 Consumer real estate: HELOC 1 40 5 204 R/E installment loans — — 1 25 Total consumer real estate 1 40 6 229 Permanent mortgage 3 294 5 699 Credit card & other 13 56 39 212 Total troubled debt restructurings 18 $ 711 52 $ 1,719

Allowance for Loan Losses

Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses The ALLL includes the following components: reserves for commercial loans evaluated based on pools of credit graded loans and reserves for pools of smaller-balance homogeneous consumer loans, both determined in accordance with ASC 450-20-50. The reserve factors applied to these pools are an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics and are subject to qualitative adjustments by management to reflect current events, trends, and conditions (including economic considerations and trends). The current economic conditions and trends, performance of the housing market, unemployment levels, labor participation rate, regulatory guidance, and both positive and negative portfolio segment-specific trends, are examples of additional factors considered by management in determining the ALLL. Additionally, management considers the inherent uncertainty of quantitative models that are driven by historical loss data. Management evaluates the periods of historical losses that are the basis for the loss rates used in the quantitative models and selects historical loss periods that are believed to be the most reflective of losses inherent in the loan portfolio as of the balance sheet date. Management also periodically reviews analysis of the loss emergence period which is the amount of time it takes for a loss to be confirmed (initial charge-off) after a loss event has occurred. FHN performs extensive studies as it relates to the historical loss periods used in the model and the loss emergence period and model assumptions are adjusted accordingly. The ALLL also includes reserves determined in accordance with ASC 310-10-35 for loans determined by management to be individually impaired and an allowance associated with PCI loans. See Note 1 – Summary of Significant Accounting Policies and Note 5 - Allowance for Loan Losses in the Notes to Consolidated Financial Statements on FHN’s Form 10-K for the year ended December 31, 2018 , for additional information about the policies and methodologies used in the aforementioned components of the ALLL. The following table provides a rollforward of the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2019 and 2018 : (Dollars in thousands) C&I (a) Commercial Real Estate (a) Consumer Real Estate Permanent Mortgage Credit Card and Other Total Balance as of July 1, 2019 $ 116,096 $ 32,953 $ 22,857 $ 8,675 $ 12,168 $ 192,749 Charge-offs (18,598 ) (369 ) (1,471 ) (2 ) (3,897 ) (24,337 ) Recoveries 3,245 181 4,349 706 1,256 9,737 Provision/(provision credit) for loan losses 13,387 2,860 (3,898 ) (542 ) 3,193 15,000 Balance as of September 30, 2019 114,130 35,625 21,837 8,837 12,720 193,149 Balance as of January 1, 2019 98,947 31,311 26,439 11,000 12,727 180,424 Charge-offs (28,289 ) (924 ) (5,809 ) (182 ) (11,883 ) (47,087 ) Recoveries 4,593 150 12,316 2,305 3,448 22,812 Provision/(provision credit) for loan losses 38,879 5,088 (11,109 ) (4,286 ) 8,428 37,000 Balance as of September 30, 2019 114,130 35,625 21,837 8,837 12,720 193,149 Allowance - individually evaluated for impairment 4,427 — 12,358 8,363 450 25,598 Allowance - collectively evaluated for impairment 108,802 35,625 8,262 474 12,223 165,386 Allowance - purchased credit-impaired loans 901 — 1,217 — 47 2,165 Loans, net of unearned as of September 30, 2019: Individually evaluated for impairment 85,303 1,940 108,315 64,302 720 260,580 Collectively evaluated for impairment 20,178,826 4,220,185 5,927,782 118,165 491,605 30,936,563 Purchased credit-impaired loans 29,801 6,473 26,732 — 684 63,690 Total loans, net of unearned income $ 20,293,930 $ 4,228,598 $ 6,062,829 $ 182,467 $ 493,009 $ 31,260,833 Balance as of July 1, 2018 $ 96,834 $ 33,832 $ 34,155 $ 11,692 $ 8,949 $ 185,462 Charge-offs (1,391 ) (9 ) (2,801 ) (15 ) (5,266 ) (9,482 ) Recoveries 1,052 267 5,302 554 804 7,979 Provision/(provision credit) for loan losses 3,819 (175 ) (7,737 ) (1,133 ) 7,226 2,000 Balance as of September 30, 2018 100,314 33,915 28,919 11,098 11,713 185,959 Balance as of January 1, 2018 98,211 28,427 39,823 13,113 9,981 189,555 Charge-offs (6,753 ) (281 ) (6,193 ) (475 ) (14,271 ) (27,973 ) Recoveries 3,607 348 15,129 1,250 3,043 23,377 Provision/(provision credit) for loan losses 5,249 5,421 (19,840 ) (2,790 ) 12,960 1,000 Balance as of September 30, 2018 100,314 33,915 28,919 11,098 11,713 185,959 Allowance - individually evaluated for impairment 6,028 — 18,076 9,996 293 34,393 Allowance - collectively evaluated for impairment 92,382 33,893 9,713 1,102 11,078 148,168 Allowance - purchased credit-impaired loans 1,904 22 1,130 — 342 3,398 Loans, net of unearned as of September 30, 2018: Individually evaluated for impairment 53,549 2,503 119,729 74,833 552 251,166 Collectively evaluated for impairment 15,940,853 4,211,337 6,146,920 162,421 527,673 26,989,204 Purchased credit-impaired loans 49,743 23,196 34,334 — 2,571 109,844 Total loans, net of unearned income $ 16,044,145 $ 4,237,036 $ 6,300,983 $ 237,254 $ 530,796 $ 27,350,214 Certain previously reported amounts have been reclassified to agree with current presentation. a) In third quarter 2019, FHN corrected a previous mis-classification of commercial loans and reclassified approximately $410 million of market investor CRE loans from the C&I portfolio to the CRE portfolio. These loans were identified during an internal review and assessment by management of certain loan populations, a portion of which relate to loans acquired as part of the Capital Bank merger. The reclassification of these loan balances between regional banking portfolios did not have an impact on FHN’s consolidated period-end or average balance sheet and had an immaterial effect on the allowance for loan losses. No adjustments were made to prior periods as the impact of the reclassification, including the effect on the allowance for loan losses was deemed to be immaterial in all periods.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets The following is a summary of other intangible assets included in the Consolidated Condensed Statements of Condition: September 30, 2019 December 31, 2018 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (42,566 ) $ 114,584 $ 157,150 $ (28,150 ) $ 129,000 Customer relationships 77,865 (59,015 ) 18,850 77,865 (55,597 ) 22,268 Other (a) 5,622 (2,650 ) 2,972 5,622 (1,856 ) 3,766 Total $ 240,637 $ (104,231 ) $ 136,406 $ 240,637 $ (85,603 ) $ 155,034 (a) Balance primarily includes noncompete covenants, as well as $ .3 million related to state banking licenses not subject to amortization. Amortization expense was $6.2 million and $6.5 million for the three months ended September 30, 2019 and 2018 , respectively and $18.6 million and $19.4 million for nine months ended September 30, 2019 and 2018 , respectively. As of September 30, 2019 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2019 $ 6,208 2020 21,159 2021 19,547 2022 17,412 2023 16,117 2024 14,679 Gross goodwill, accumulated impairments, and accumulated divestiture related write-offs were determined beginning January 1, 2002, when a change in accounting requirements resulted in goodwill being assessed for impairment rather than being amortized. Gross goodwill of $200.0 million with accumulated impairments and accumulated divestiture-related write-offs of $114.1 million and $85.9 million , respectively, were previously allocated to the non-strategic segment, resulting in $0 net goodwill allocated to the non-strategic segment as of September 30, 2019 and December 31, 2018 . The regional banking and fixed income segments do not have any accumulated impairments or divestiture related write-offs. The following is a summary of goodwill by reportable segment included in the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2017 $ 1,243,885 $ 142,968 $ 1,386,853 Additions (a) 22,969 — 22,969 September 30, 2018 $ 1,266,854 $ 142,968 $ 1,409,822 December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — September 30, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 (a) See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to acquisitions.

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	Leases FHN has operating, financing, and short-term leases for branch locations, corporate offices and certain equipment. Substantially all of these leases are classified as operating leases. The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) September 30, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 174,352 Finance lease right-of use assets Other assets 634 Total Lease Right-of Use Assets $ 174,986 Lease Liabilities: Operating lease liabilities Other liabilities $ 196,012 Finance lease liabilities Other liabilities 1,280 Total Lease Liabilities $ 197,292 The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of September 30, 2019 . Weighted Average Remaining Lease Terms Operating leases 12.01 years Finance leases 6.67 years Weighted Average Discount Rate Operating leases 3.47 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three and nine months ended September 30, 2019 : (Dollars in thousands) Three Months Ended Nine Months Ended Lease cost Operating lease cost $ 5,989 $ 18,573 Finance lease cost: Amortization of right-of-use assets 23 71 Interest on lease liabilities 33 98 Short-term lease cost (10 ) 70 Sublease income (97 ) (289 ) Total lease cost $ 5,938 $ 18,523 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ — $ 2,551 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,279 16,626 Operating cash flows from finance leases 32 98 Financing cash flows from finance leases 32 94 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 574 5,358 Finance leases — — The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of September 30, 2019 : (Dollars in thousands) September 30, 2019 Remainder of 2019 $ 6,261 2020 24,854 2021 22,451 2022 21,202 2023 20,240 2024 and after 147,800 Total future minimum lease payments 242,808 Less lease liability interest (45,516 ) Present value of net future minimum lease payments $ 197,292 FHN had aggregate undiscounted contractual obligations totaling $33.5 million for lease arrangements that have not commenced. Payments under these arrangements are expected to occur from 2019 through 2032. Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262
Leases	Leases FHN has operating, financing, and short-term leases for branch locations, corporate offices and certain equipment. Substantially all of these leases are classified as operating leases. The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) September 30, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 174,352 Finance lease right-of use assets Other assets 634 Total Lease Right-of Use Assets $ 174,986 Lease Liabilities: Operating lease liabilities Other liabilities $ 196,012 Finance lease liabilities Other liabilities 1,280 Total Lease Liabilities $ 197,292 The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of September 30, 2019 . Weighted Average Remaining Lease Terms Operating leases 12.01 years Finance leases 6.67 years Weighted Average Discount Rate Operating leases 3.47 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three and nine months ended September 30, 2019 : (Dollars in thousands) Three Months Ended Nine Months Ended Lease cost Operating lease cost $ 5,989 $ 18,573 Finance lease cost: Amortization of right-of-use assets 23 71 Interest on lease liabilities 33 98 Short-term lease cost (10 ) 70 Sublease income (97 ) (289 ) Total lease cost $ 5,938 $ 18,523 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ — $ 2,551 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,279 16,626 Operating cash flows from finance leases 32 98 Financing cash flows from finance leases 32 94 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 574 5,358 Finance leases — — The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of September 30, 2019 : (Dollars in thousands) September 30, 2019 Remainder of 2019 $ 6,261 2020 24,854 2021 22,451 2022 21,202 2023 20,240 2024 and after 147,800 Total future minimum lease payments 242,808 Less lease liability interest (45,516 ) Present value of net future minimum lease payments $ 197,292 FHN had aggregate undiscounted contractual obligations totaling $33.5 million for lease arrangements that have not commenced. Payments under these arrangements are expected to occur from 2019 through 2032. Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262

Other Income And Other Expense

Other Income And Other Expense	9 Months Ended
	Sep. 30, 2019
Other Nonoperating Income (Expense) [Abstract]
Other Income And Other Expense	Other Income and Other Expense Following is detail of All other income and commissions and All other expense as presented in the Consolidated Condensed Statements of Income: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 All other income and commissions: Other service charges $ 5,738 $ 3,758 $ 15,231 $ 11,609 ATM and interchange fees 4,507 3,263 12,010 9,943 Mortgage banking 2,019 2,533 6,477 7,510 Dividend income 1,556 2,757 5,678 8,130 Letter of credit fees 1,400 1,307 4,021 3,851 Electronic banking fees 1,288 1,309 3,826 3,741 Insurance commissions 577 396 1,767 1,629 Deferred compensation (a) 472 1,458 7,884 2,900 Gain/(loss) on extinguishment of debt (6 ) (1 ) (7 ) (1 ) Other 9,299 5,009 20,261 14,244 Total $ 26,850 $ 21,789 $ 77,148 $ 63,556 All other expense: Litigation and regulatory matters (b) $ 11,534 $ (1,541 ) $ 3,317 $ 609 Customer relations 3,165 1,328 6,304 3,749 Travel and entertainment 2,849 3,988 8,467 12,102 Other insurance and taxes 2,475 2,761 7,664 8,178 Supplies 1,668 1,635 4,814 5,458 Miscellaneous loan costs 1,017 543 2,901 2,720 Employee training and dues 1,003 1,682 3,711 5,310 Non-service components of net periodic pension and post-retirement cost 986 1,585 1,977 3,619 Tax credit investments 407 1,370 1,349 3,586 OREO 342 1,256 1 2,174 Other 14,231 11,094 48,169 64,527 Total $ 39,677 $ 25,701 $ 88,674 $ 112,032 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts are driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense. (b) Litigation and regulatory matters for the nine months ended September 30, 2019 includes an $8.3 million expense reversal related to the settlement of litigation matters within the Non-Strategic segment during second quarter 2019.

Components of Other Comprehensi

Components of Other Comprehensive Income/(loss)	9 Months Ended
	Sep. 30, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Other Comprehensive Income/(loss)	Components of Other Comprehensive Income/(loss) The following table provides the changes in accumulated other comprehensive income/(loss) by component, net of tax, for the three and nine months ended September 30, 2019 and 2018 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of July 1, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 ) Net unrealized gains/(losses) 16,889 1,855 — 18,744 Amounts reclassified from AOCI — 989 2,102 3,091 Other comprehensive income/(loss) 16,889 2,844 2,102 21,835 Balance as of September 30, 2019 $ 37,960 $ 5,028 $ (283,642 ) $ (240,654 ) Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 113,495 13,367 — 126,862 Amounts reclassified from AOCI 201 3,773 5,126 9,100 Other comprehensive income/(loss) 113,696 17,140 5,126 135,962 Balance as of September 30, 2019 $ 37,960 $ 5,028 $ (283,642 ) $ (240,654 ) (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of July 1, 2018 $ (107,476 ) $ (19,757 ) $ (284,881 ) $ (412,114 ) Net unrealized gains/(losses) (25,924 ) (2,517 ) — (28,441 ) Amounts reclassified from AOCI — 771 2,135 2,906 Other comprehensive income/(loss) (25,924 ) (1,746 ) 2,135 (25,535 ) Balance as of September 30, 2018 $ (133,400 ) $ (21,503 ) $ (282,746 ) $ (437,649 ) Balance as of January 1, 2018 $ (26,834 ) $ (7,764 ) $ (288,227 ) $ (322,825 ) Adjustment to reflect adoption of ASU 2016-01 (5 ) (206 ) — (211 ) Beginning balance, as adjusted (26,839 ) (7,970 ) (288,227 ) (323,036 ) Net unrealized gains/(losses) (106,522 ) (14,612 ) — (121,134 ) Amounts reclassified from AOCI (39 ) 1,079 5,481 6,521 Other comprehensive income/(loss) (106,561 ) (13,533 ) 5,481 (114,613 ) Balance as of September 30, 2018 $ (133,400 ) $ (21,503 ) $ (282,746 ) $ (437,649 ) Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Nine Months Ended Details about AOCI 2019 2018 2019 2018 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ — $ 267 $ (52 ) Debt securities gains/(losses), net Tax expense/(benefit) — — (66 ) 13 Provision/(benefit) for income taxes — — 201 (39 ) Cash flow hedges: Realized (gains)/losses on cash flow hedges 1,313 1,024 5,012 1,433 Interest and fees on loans Tax expense/(benefit) (324 ) (253 ) (1,239 ) (354 ) Provision/(benefit) for income taxes 989 771 3,773 1,079 Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 2,792 2,836 6,809 7,280 All other expense Tax expense/(benefit) (690 ) (701 ) (1,683 ) (1,799 ) Provision/(benefit) for income taxes 2,102 2,135 5,126 5,481 Total reclassification from AOCI $ 3,091 $ 2,906 $ 9,100 $ 6,521

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table provides reconciliations of net income to net income available to common shareholders and the difference between average basic common shares outstanding and average diluted common shares outstanding: Three Months Ended Nine Months Ended (Dollars and shares in thousands, except per share data) 2019 2018 2019 2018 Net income/(loss) $ 113,943 $ 274,716 $ 331,090 $ 455,702 Net income attributable to noncontrolling interest 2,883 2,883 8,555 8,555 Net income/(loss) attributable to controlling interest 111,060 271,833 322,535 447,147 Preferred stock dividends 1,550 1,550 4,650 4,650 Net income/(loss) available to common shareholders $ 109,510 $ 270,283 $ 317,885 $ 442,497 Weighted average common shares outstanding—basic 311,888 324,406 314,442 325,341 Effect of dilutive securities 1,917 2,846 1,959 3,304 Weighted average common shares outstanding—diluted 313,805 327,252 316,401 328,645 Net income/(loss) per share available to common shareholders $ 0.35 $ 0.83 $ 1.01 $ 1.36 Diluted income/(loss) per share available to common shareholders $ 0.35 $ 0.83 $ 1.00 $ 1.35 The following table presents outstanding options and other equity awards that were excluded from the calculation of diluted earnings per share because they were either anti-dilutive (the exercise price was higher than the weighted-average market price for the period) or the performance conditions have not been met: Three Months Ended Nine Months Ended (Shares in thousands) 2019 2018 2019 2018 Stock options excluded from the calculation of diluted EPS 1,883 2,251 2,413 2,316 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 21.21 $ 23.67 $ 21.36 $ 24.43 Other equity awards excluded from the calculation of diluted EPS 2,094 1,605 1,815 538

Contingencies And Other Disclos

Contingencies And Other Disclosures	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingencies and Other Disclosures	Contingencies and Other Disclosures CONTINGENCIES Contingent Liabilities Overview Contingent liabilities arise in the ordinary course of business. Often they are related to lawsuits, arbitration, mediation, and other forms of litigation. Various litigation matters are threatened or pending against FHN and its subsidiaries. Also, FHN at times receives requests for information, subpoenas, or other inquiries from federal, state, and local regulators, from other government authorities, and from other parties concerning various matters relating to FHN’s current or former businesses. Certain matters of that sort are pending at this time, and FHN is cooperating in those matters. Pending and threatened litigation matters sometimes are settled by the parties, and sometimes pending matters are resolved in court or before an arbitrator. Regardless of the manner of resolution, frequently the most significant changes in status of a matter occur over a short time period, often following a lengthy period of little substantive activity. In view of the inherent difficulty of predicting the outcome of these matters, particularly where the claimants seek very large or indeterminate damages, or where the cases present novel legal theories or involve a large number of parties, or where claims or other actions may be possible but have not been brought, FHN cannot reasonably determine what the eventual outcome of the matters will be, what the timing of the ultimate resolution of these matters may be, or what the eventual loss or impact related to each matter may be. FHN establishes a loss contingency liability for a litigation matter when loss is both probable and reasonably estimable as prescribed by applicable financial accounting guidance. If loss for a matter is probable and a range of possible loss outcomes is the best estimate available, accounting guidance requires a liability to be established at the low end of the range. Based on current knowledge, and after consultation with counsel, management is of the opinion that loss contingencies related to threatened or pending litigation matters should not have a material adverse effect on the consolidated financial condition of FHN, but may be material to FHN’s operating results for any particular reporting period depending, in part, on the results from that period. Material Loss Contingency Matters Summary As used in this Note, except for matters that are reported as having been substantially settled or otherwise substantially resolved, FHN's “material loss contingency matters” generally fall into at least one of the following categories: (i) FHN has determined material loss to be probable and has established a material loss liability in accordance with applicable financial accounting guidance; (ii) FHN has determined material loss to be probable but is not reasonably able to estimate an amount or range of material loss liability; or (iii) FHN has determined that material loss is not probable but is reasonably possible, and that the amount or range of that reasonably possible material loss is estimable. As defined in applicable accounting guidance, loss is reasonably possible if there is more than a remote chance of a material loss outcome for FHN. Set forth below are disclosures for certain pending or threatened litigation matters, including all matters mentioned in (i) or (ii) and certain matters mentioned in (iii). In addition, certain other matters, or groups of matters, are discussed relating to FHN’s former mortgage origination and servicing businesses. In all litigation matters discussed, unless settled or otherwise resolved, FHN believes it has meritorious defenses and intends to pursue those defenses vigorously. FHN reassesses the liability for litigation matters each quarter as the matters progress. At September 30, 2019, the aggregate amount of liabilities established for all such loss contingency matters was $15.4 million . These liabilities are separate from those discussed under the heading “Loan Repurchase and Foreclosure Liability” below. In each material loss contingency matter, except as otherwise noted, there is more than a remote chance that any of the following outcomes will occur: the plaintiff will substantially prevail; the defense will substantially prevail; the plaintiff will prevail in part; or the matter will be settled by the parties. At September 30, 2019, FHN is unable to estimate any material reasonably possible losses ("RPLs") for contingency matters in future periods in excess of currently established liabilities. As a result of the general uncertainties discussed above and the specific uncertainties discussed for each matter mentioned below, it is possible that the ultimate future loss experienced by FHN for any particular matter may materially exceed the amount, if any, of currently established liability for that matter. Material Matters FHN was one of multiple defendants in a consolidated putative class action suit: In re GSE Bonds Antitrust Litigation, No. 1:19-cv-01704-JSR (U.S. District Court S.D.N.Y.). The plaintiffs claim that defendants conspired to fix secondary market prices of government-sponsored enterprise (“GSE”) bonds from 2009 through 2015. During the third quarter, FHN reached a class settlement with the plaintiffs, subject to court approval, without admitting liability. The settlement is reflected in the liabilities established at September 30, 2019, as mentioned above. Former Mortgage Business Exposures FHN has received indemnity claims from underwriters and others related to lawsuits as to which investors or others claimed to have purchased certificates in FHN proprietary securitizations (sold under FHN's pre-2009 mortgage business) but as to which FHN was not named a defendant. For most pending indemnity claims involving proprietary securitizations, FHN is unable to estimate an RPL range due to significant uncertainties regarding: claims as to which the claimant specifies no dollar amount; the potential remedies that might be available or awarded; the availability of significantly dispositive defenses such as statutes of limitations or repose; the outcome of potentially dispositive early-stage motions such as motions to dismiss; the incomplete status of the discovery process; the lack of a precise statement of damages; inability to identify specific loans and/or breaches that are the source of the claim; lack of specific grounds to trigger FHN's indemnity obligation; and lack of precedent claims. FHN is contending with indemnification claims related to "other whole loans sold," which were mortgage loans originated by FHN before 2009 and sold outside of an FHN securitization. These claims generally assert that FHN-originated loans contributed to claimant’s losses in connection with settlements that claimant paid to various third parties in connection with mortgage loans securitized by claimant. The claims generally do not include specific deficiencies for specific loans sold by FHN. Instead, the claims generally assert that FHN is liable for a share of the claimant's loss estimated by assessing the totality of the other whole loans sold by FHN to claimant in relation to the totality of the larger number of loans securitized by claimant. FHN is unable to estimate an RPL range for these matters due to significant uncertainties regarding: the number of, and the facts underlying, the loan originations which claimants assert are indemnifiable; the applicability of FHN’s contractual indemnity covenants to those facts and originations; and, in those cases where an indemnity claim may be supported, whether any legal defenses, counterclaims, other counter-positions, or third-party claims might eliminate or reduce claims against FHN or their impact on FHN. FHN also has indemnification claims related to servicing obligations. The most significant is from Nationstar Mortgage LLC, currently doing business as “Mr. Cooper.” Nationstar was the purchaser of FHN’s mortgage servicing obligations and assets in 2013 and 2014 and, starting in 2011, was FHN’s subservicer. Nationstar asserts several categories of indemnity obligations in connection with mortgage loans under the subservicing arrangement and under the purchase transaction. This matter currently is not in litigation, but litigation in the future is possible. FHN is unable to estimate an RPL range for this matter due to significant uncertainties regarding: the exact nature of each of Nationstar’s claims and its position in respect of each; the number of, and the facts underlying, the claimed instances of indemnifiable events; the applicability of FHN’s contractual indemnity covenants to those facts and events; and, in those cases where the facts and events might support an indemnity claim, whether any legal defenses, counterclaims, other counter-positions, or third-party claims might eliminate or reduce claims against FHN or their impact on FHN. FHN has additional potential exposures related to its former mortgage businesses. A few of those matters have become litigation which FHN currently estimates are immaterial, some are non-litigation claims or threats, some are mere subpoenas or other requests for information, and in some areas FHN has no indication of any active or threatened dispute. Some of those matters might eventually result in settlements, and some might eventually result in adverse litigation outcomes, but none are included in the material loss contingency liabilities mentioned above or in the RPL range mentioned above. Mortgage Loan Repurchase and Foreclosure Liability The repurchase and foreclosure liability is comprised of accruals to cover estimated loss content in the active pipeline (consisting of mortgage loan repurchase, make-whole, foreclosure/servicing demands and certain related exposures), estimated future inflows, and estimated loss content related to certain known claims not currently included in the active pipeline. FHN compares the estimated probable incurred losses determined under the applicable loss estimation approaches for the respective periods with current reserve levels. Changes in the estimated required liability levels are recorded as necessary through the repurchase and foreclosure provision. Based on currently available information and experience to date, FHN has evaluated its loan repurchase, make-whole, foreclosure, and certain related exposures and has accrued for losses of $17.2 million and $32.3 million as of September 30, 2019 and December 31, 2018, respectively. Accrued liabilities for FHN’s estimate of these obligations are reflected in Other liabilities on the Consolidated Condensed Statements of Condition. Charges/expense reversals to increase/decrease the liability are included within Repurchase and foreclosure provision/(provision credit) on the Consolidated Condensed Statements of Income. The estimates are based upon currently available information and fact patterns that exist as of each balance sheet date and could be subject to future changes. Changes to any one of these factors could significantly impact the estimate of FHN’s liability. OTHER DISCLOSURES Indemnification Agreements and Guarantees In the ordinary course of business, FHN enters into indemnification agreements for legal proceedings against its directors and officers and standard representations and warranties for underwriting agreements, merger and acquisition agreements, loan sales, contractual commitments, and various other business transactions or arrangements. The extent of FHN’s obligations under these agreements depends upon the occurrence of future events; therefore, it is not possible to estimate a maximum potential amount of payouts that could be required by such agreements.

Pension, Savings, And Other Emp

Pension, Savings, And Other Employee Benefits	9 Months Ended
	Sep. 30, 2019
Retirement Benefits, Description [Abstract]
Pension, Savings, and Other Employee Benefits	Pension, Savings, and Other Employee Benefits Pension plan. FHN sponsors a noncontributory, qualified defined benefit pension plan to employees hired or re-hired on or before September 1, 2007. Pension benefits are based on years of service, average compensation near retirement or other termination, and estimated social security benefits at age 65 . Benefits under the plan are “frozen” so that years of service and compensation changes after 2012 do not affect the benefit owed. Minimum contributions are based upon actuarially determined amounts necessary to fund the total benefit obligation. Decisions to contribute to the plan are based upon pension funding requirements under the Pension Protection Act, the maximum amount deductible under the Internal Revenue Code, the actual performance of plan assets, and trends in the regulatory environment. FHN made an insignificant contribution to the qualified pension plan in 2018. Management does not currently anticipate that FHN will make a contribution to the qualified pension plan for the remainder of 2019. FHN assumed two additional qualified plans in conjunction with the CBF acquisition. Both legacy CBF plans are frozen. As of December 31, 2018, the aggregate benefit obligation for the plans was $17.1 million and aggregate plan assets were $16.5 million . Benefit payments, expense and actuarial gains/losses related to these plans were insignificant for the first half of 2019 and 2018. In third quarter 2019, FHN settled these plans through the purchase of annuity contracts, making related contributions of $.5 million . Due to the insignificant financial statement impact, these two plans are not included in the disclosures that follow. FHN also maintains non-qualified plans including a supplemental retirement plan that covers certain employees whose benefits under the qualified pension plan have been limited by tax rules. These other non-qualified plans are unfunded, and contributions to these plans cover all benefits paid under the non-qualified plans. Payments made under the non-qualified plans were $5.8 million for 2018 . FHN anticipates making benefit payments under the non-qualified plans of $5.2 million in 2019 . Savings plan. FHN provides all qualifying full-time employees with the opportunity to participate in FHN's tax qualifi ed 401(k) savings plan. The qualified plan allows employees to defer receipt of earned salary, up to tax law limits, on a tax- advantaged basis. Accounts, which are held in trust, may be invested in a wide range of mutual funds and in FHN common stock. Up to tax law limits, FHN provides a 100 percent match for the first 6 percent of salary deferred, with company matching contributions invested according to a participant’s current investment election. Through a non-qualified savings restoration plan, FHN provides a restorative benefit to certain highly-compensated employees who participate in the savings plan and whose contribution elections are capped by tax limitations. Other employee benefits. FHN provides postretirement life insurance benefits to certain employees and also provides postretirement medical insurance benefits to retirement-eligible employees. The postretirement medical plan is contributory with FHN contributing a fixed amount for certain participants. FHN’s postretirement benefits include certain prescription drug benefits. Service cost is included in Employee compensation, incentives, and benefits in the Consolidated Condensed Statements of Income. All other components of net periodic benefit cost are included in All other expense. The components of net periodic benefit cost for the three months ended September 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 7 $ 11 $ 23 $ 33 Interest cost 7,505 6,935 358 328 Expected return on plan assets (9,335 ) (8,222 ) (314 ) (268 ) Amortization of unrecognized: Actuarial (gain)/loss 2,546 3,164 (112 ) (108 ) Net periodic benefit cost/(credit) $ 723 $ 1,888 $ (45 ) $ (15 ) The components of net periodic benefit cost for the nine months ended September 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 23 $ 31 $ 71 $ 100 Interest cost 22,655 20,908 1,060 982 Expected return on plan assets (27,681 ) (24,673 ) (852 ) (806 ) Amortization of unrecognized: Actuarial (gain)/loss 7,416 9,076 (346 ) (290 ) Net periodic benefit cost/(credit) $ 2,413 $ 5,342 $ (67 ) $ (14 )

Business Segment Information

Business Segment Information	9 Months Ended
	Sep. 30, 2019
Segment Reporting, Measurement Disclosures [Abstract]
Business Segment Information	Business Segment Information FHN has four business segments: regional banking, fixed income, corporate, and non-strategic. The regional banking segment offers financial products and services, including traditional lending and deposit taking, to consumer and commercial customers in Tennessee, North Carolina, South Carolina, Florida and other selected markets. Regional banking also provides investments, wealth management, financial planning, trust services and asset management, mortgage banking, credit card, and cash management. Additionally, the regional banking segment includes correspondent banking which provides credit, depository, and other banking related services to other financial institutions nationally. The fixed income segment consists of fixed income securities sales, trading, underwriting, and strategies for institutional clients in the U.S. and abroad, as well as loan sales, portfolio advisory services, and derivative sales. The corporate segment consists of unallocated corporate expenses, expense on subordinated debt issuances, bank-owned life insurance, unallocated interest income associated with excess equity, net impact of raising incremental capital, revenue and expense associated with deferred compensation plans, funds management, tax credit investment activities, derivative valuation adjustments related to prior sales of Visa Class B shares, gain/(loss) on extinguishment of debt, acquisition- and integration-related costs, expenses associated with rebranding initiatives, and various charges related to restructuring, repositioning, and efficiency efforts. The non-strategic segment consists of run-off consumer lending activities, legacy (pre-2009) mortgage banking elements, and the associated ancillary revenues and expenses related to these businesses. Non-strategic also includes the wind-down trust preferred loan portfolio and exited businesses. Periodically, FHN adapts its segments to reflect managerial or strategic changes. FHN may also modify its methodology of allocating expenses and equity among segments which could change historical segment results. Business segment revenue, expense, asset, and equity levels reflect those which are specifically identifiable or which are allocated based on an internal allocation method. Because the allocations are based on internally developed assignments and allocations, to an extent they are subjective. Generally, all assignments and allocations have been consistently applied for all periods presented. The following table reflects the amounts of consolidated revenue, expense, tax, and average assets for each segment for the three and nine months ended September 30 : Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Consolidated Net interest income $ 300,676 $ 305,700 $ 898,794 $ 917,805 Provision/(provision credit) for loan losses 15,000 2,000 37,000 1,000 Noninterest income 171,735 348,972 470,773 612,514 Noninterest expense 307,672 294,031 904,156 940,064 Income/(loss) before income taxes 149,739 358,641 428,411 589,255 Provision/(benefit) for income taxes 35,796 83,925 97,321 133,553 Net income/(loss) $ 113,943 $ 274,716 $ 331,090 $ 455,702 Average assets $ 41,940,901 $ 40,077,033 $ 41,359,574 $ 40,199,487 Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Regional Banking Net interest income $ 302,370 $ 301,099 $ 885,622 $ 899,183 Provision/(provision credit) for loan losses 20,472 7,205 51,690 16,155 Noninterest income 85,776 80,705 240,281 241,760 Noninterest expense 193,211 207,549 585,947 620,261 Income/(loss) before income taxes 174,463 167,050 488,266 504,527 Provision/(benefit) for income taxes 41,762 39,195 115,129 118,582 Net income/(loss) $ 132,701 $ 127,855 $ 373,137 $ 385,945 Average assets $ 31,626,870 $ 28,551,247 $ 30,224,875 $ 28,339,571 Fixed Income Net interest income $ 5,309 $ 9,054 $ 18,811 $ 26,742 Noninterest income 77,809 41,124 197,238 125,091 Noninterest expense 67,787 46,561 174,331 142,857 Income/(loss) before income taxes 15,331 3,617 41,718 8,976 Provision/(benefit) for income taxes 3,656 719 9,834 1,689 Net income/(loss) $ 11,675 $ 2,898 $ 31,884 $ 7,287 Average assets $ 2,882,316 $ 3,246,120 $ 2,952,766 $ 3,322,576 Corporate Net interest income/(expense) $ (13,225 ) $ (15,462 ) $ (28,062 ) $ (48,835 ) Noninterest income (a) 7,359 222,620 30,111 240,674 Noninterest expense (b) (c) 41,993 33,561 137,867 154,779 Income/(loss) before income taxes (47,859 ) 173,597 (135,818 ) 37,060 Provision/(benefit) for income taxes (11,550 ) 40,458 (36,105 ) 3,719 Net income/(loss) $ (36,309 ) $ 133,139 $ (99,713 ) $ 33,341 Average assets $ 6,430,822 $ 6,907,970 $ 7,094,650 $ 6,995,043 Non-Strategic Net interest income $ 6,222 $ 11,009 $ 22,423 $ 40,715 Provision/(provision credit) for loan losses (5,472 ) (5,205 ) (14,690 ) (15,155 ) Noninterest income 791 4,523 3,143 4,989 Noninterest expense 4,681 6,360 6,011 22,167 Income/(loss) before income taxes 7,804 14,377 34,245 38,692 Provision/(benefit) for income taxes 1,928 3,553 8,463 9,563 Net income/(loss) $ 5,876 $ 10,824 $ 25,782 $ 29,129 Average assets $ 1,000,893 $ 1,371,696 $ 1,087,283 $ 1,542,297 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Three and nine months ended September 30, 2018 includes a $212.9 million pre-tax gain from the sale of Visa Class B shares. (b) Three and nine months ended September 30, 2019 include restructuring-related costs associated with efficiency initiatives; refer to Note 18 - Restructuring, Repositioning, and Efficiency for additional information. Three and nine months ended September 30, 2019 and 2018 include acquisition-related expenses; refer to Note 2 - Acquisitions and Divestitures for additional information. (c) Three and nine months ended September 30, 2019 include $3.1 million and $12.2 million , respectively, of asset impairments, professional fees, and other customer-contact and technology-related expenses associated with rebranding initiatives. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the three months ended September 30, 2019 and 2018 : Three months ended September 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 57 $ 77,588 $ — $ — $ 77,645 Deposit transactions and cash management 32,583 — 1,739 57 34,379 Brokerage, management fees and commissions 14,157 — — — 14,157 Trust services and investment management 7,190 — (27 ) — 7,163 Bankcard income 7,028 11 63 (85 ) 7,017 BOLI (b) — — 4,427 — 4,427 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — 97 — 97 All other income and commissions (c) 24,761 210 1,060 819 26,850 Total noninterest income $ 85,776 $ 77,809 $ 7,359 $ 791 $ 171,735 (a) Includes $9.2 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Three months ended September 30, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 102 $ 40,938 $ (5 ) $ 3,778 $ 44,813 Deposit transactions and cash management 33,989 3 1,741 59 35,792 Brokerage, management fees and commissions 14,199 — — 1 14,200 Trust services and investment management 7,453 — (15 ) — 7,438 Bankcard income 7,865 — 57 (178 ) 7,744 BOLI (b) — — 4,337 — 4,337 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) (d) — — 212,859 — 212,859 All other income and commissions (c) 17,097 183 3,646 863 21,789 Total noninterest income $ 80,705 $ 41,124 $ 222,620 $ 4,523 $ 348,972 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $8.4 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." Non-Strategic includes a $3.8 million gain from the reversal of a previous valuation adjustment due to sales of TRUPs loans excluded from the scope of ASC 606. (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) In third quarter 2018, FHN sold its remaining holdings of Visa Class B shares resulting in a pre-tax gain of $212.9 million . Nine months ended September 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 120 $ 196,582 $ — $ 1,106 $ 197,808 Deposit transactions and cash management 93,195 4 5,009 166 98,374 Brokerage, management fees and commissions 40,904 — — 6 40,910 Trust services and investment management 22,148 — (71 ) — 22,077 Bankcard income 20,661 11 185 (533 ) 20,324 BOLI (b) — — 13,955 — 13,955 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 444 — 444 All other income and commissions (c) 63,253 641 10,856 2,398 77,148 Total noninterest income $ 240,281 $ 197,238 $ 30,111 $ 3,143 $ 470,773 (a) Includes $23.6 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Nine months ended September 30, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 314 $ 123,929 $ (5 ) $ 3,778 $ 128,016 Deposit transactions and cash management 103,219 9 4,467 164 107,859 Brokerage, management fees and commissions 41,422 — — 1 41,423 Trust services and investment management 22,891 — (44 ) — 22,847 Bankcard income 21,696 — 169 (131 ) 21,734 BOLI (b) — — 14,103 — 14,103 Debt securities gains/(losses), net (b) — — 52 — 52 Equity securities gains/(losses), net (b) (d) — — 212,924 — 212,924 All other income and commissions (c) (e) 52,218 1,153 9,008 1,177 63,556 Total noninterest income $ 241,760 $ 125,091 $ 240,674 $ 4,989 $ 612,514 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $24.0 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." Non-Strategic includes a $3.8 million gain from the reversal of a previous valuation adjustment due to sales of TRUPs loans excluded from the scope of ASC 606. (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) In third quarter 2018, FHN sold its remaining holdings of Visa Class B shares resulting in a pre-tax gain of $212.9 million . (e) Corporate includes $4.1 million of gains on the sales of buildings.

Variable Interest Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2019
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities ASC 810 defines a VIE as a legal entity where (a) the equity investors, as a group, lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support, (b) the equity investors, as a group, lack either, (1) the power through voting rights, or similar rights, to direct the activities of an entity that most significantly impact the entity’s economic performance, (2) the obligation to absorb the expected losses of the entity, or (3) the right to receive the expected residual returns of the entity, or (c) the entity is structured with non-substantive voting rights. A variable interest is a contractual ownership or other interest that fluctuates with changes in the fair value of the VIE’s net assets exclusive of variable interests. Under ASC 810, as amended, a primary beneficiary is required to consolidate a VIE when it has a variable interest in a VIE that provides it with a controlling financial interest. For such purposes, the determination of whether a controlling financial interest exists is based on whether a single party has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant. Consolidated Variable Interest Entities FHN holds variable interests in a proprietary HELOC securitization trust it established as a source of liquidity for consumer lending operations. Based on its restrictive nature, the trust is considered a VIE as the holders of equity at risk do not have the power through voting rights or similar rights to direct the activities that most significantly impact the trust’s economic performance. The retention of mortgage service rights ("MSR") and a residual interest results in FHN potentially absorbing losses or receiving benefits that are significant to the trust. FHN is considered the primary beneficiary, as it is assumed to have the power, as Master Servicer, to most significantly impact the activities of the VIE. Consolidation of the trust results in the recognition of the trust proceeds as restricted borrowings since the cash flows on the securitized loans can only be used to settle the obligations due to the holders of trust securities. Through first quarter 2016 the trust experienced a rapid amortization period and FHN was obligated to provide subordinated funding. During the period, cash payments from borrowers were accumulated to repay outstanding debt securities while FHN continued to make advances to borrowers when they drew on their lines of credit. FHN then transferred the newly generated receivables into the securitization trust. FHN is reimbursed for these advances only after other parties in the securitization have received all of the cash flows to which they are entitled. If loan losses requiring draws on the related monoline insurers’ policies (which protect bondholders in the securitization) exceed a certain level, FHN may not receive reimbursement for all of the funds advanced to borrowers, as the senior bondholders and the monoline insurers typically have priority for repayment. Amounts funded from monoline insurance policies are considered restricted term borrowings in FHN’s Consolidated Condensed Statements of Condition. Except for recourse due to breaches of representations and warranties made by FHN in connection with the sale of the loans to the trust, the creditors of the trust hold no recourse to the assets of FHN. This securitization trust is expected to be resolved in fourth quarter 2019. FHN has established certain rabbi trusts related to deferred compensation plans offered to its employees. FHN contributes employee cash compensation deferrals to the trusts and directs the underlying investments made by the trusts. The assets of these trusts are available to FHN’s creditors only in the event that FHN becomes insolvent. These trusts are considered VIEs as there is no equity at risk in the trusts since FHN provided the equity interest to its employees in exchange for services rendered. FHN is considered the primary beneficiary of the rabbi trusts as it has the power to direct the activities that most significantly impact the economic performance of the rabbi trusts through its ability to direct the underlying investments made by the trusts. Additionally, FHN could potentially receive benefits or absorb losses that are significant to the trusts due to its right to receive any asset values in excess of liability payoffs and its obligation to fund any liabilities to employees that are in excess of a rabbi trust’s assets. The following table summarizes VIEs consolidated by FHN as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans ( Dollars in thousands ) Carrying Value Carrying Value Carrying Value Carrying Value Assets: Cash and due from banks $ — N/A $ — N/A Loans, net of unearned income 12,448 N/A 16,213 N/A Less: Allowance for loan losses — N/A — N/A Total net loans 12,448 N/A 16,213 N/A Other assets 24 $ 87,612 35 $ 78,446 Total assets $ 12,472 $ 87,612 $ 16,248 $ 78,446 Liabilities: Term borrowings $ 401 N/A $ 2,981 N/A Other liabilities — $ 66,051 — $ 56,700 Total liabilities $ 401 $ 66,051 $ 2,981 $ 56,700 Nonconsolidated Variable Interest Entities Low Income Housing Partnerships. First Horizon Community Investment Group, Inc. ("FHCIG") (formerly First Tennessee Housing Corporation (“FTHC”)), a wholly-owned subsidiary of First Horizon Bank ("FHB") (formerly First Tennessee Bank National Association ("FTBNA"), makes equity investments as a limited partner in various partnerships that sponsor affordable housing projects utilizing the Low Income Housing Tax Credit (“LIHTC”) pursuant to Section 42 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital and to support FHN’s community reinvestment initiatives. The activities of the limited partnerships include the identification, development, and operation of multi-family housing units that are leased to qualifying residential tenants generally within FHN’s primary geographic region. LIHTC partnerships are considered VIEs as FHCIG, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. FHCIG could absorb losses that are significant to the LIHTC partnerships as it has a risk of loss for its capital contributions and funding commitments to each partnership. The general partners are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the entities’ economic performance and the managing members are exposed to all losses beyond FHCIG’s initial capital contributions and funding commitments. FHN accounts for all qualifying LIHTC investments under the proportional amortization method. Under this method an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense/(benefit). LIHTC investments that do not qualify for the proportional amortization method are accounted for using the equity method. Expenses associated with these investments were $.3 million and $1.2 million for the three months ended September 30, 2019 and 2018 , respectively and $.9 million and $3.1 million for nine months ended September 30, 2019 and 2018 , respectively. The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Condensed Statements of Income for the three and nine months ended September 30, 2019 , and 2018 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended Nine Months Ended ( Dollars in thousands ) 2019 2018 2019 2018 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 4,436 $ 1,547 $ 12,721 $ 6,094 Low income housing tax credits (3,607 ) (2,584 ) (10,758 ) (7,681 ) Other tax benefits related to qualifying LIHTC investments (1,751 ) (1,412 ) (4,970 ) (2,996 ) Other Tax Credit Investments. First Tennessee New Markets Corporation (“FTNMC”), a wholly-owned subsidiary of FHB, makes equity investments through wholly-owned subsidiaries as a non-managing member in various limited liability companies (“LLCs”) that sponsor community development projects utilizing the New Market Tax Credit (“NMTC”) pursuant to Section 45 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital and to support FHN’s community reinvestment initiatives. The activities of the LLCs include providing investment capital for low-income communities within FHN’s primary geographic region. A portion of the funding of FTNMC’s investment in a NMTC LLC is obtained via a loan from an unrelated third-party that is typically a community development enterprise. The NMTC LLCs are considered VIEs as FTNMC, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. While FTNMC could absorb losses that are significant to the NMTC LLCs as it has a risk of loss for its initial capital contributions, the managing members are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the NMTC LLCs’ economic performance and the managing members are exposed to all losses beyond FTNMC’s initial capital contributions. FHCIG also makes equity investments as a limited partner or non-managing member in entities that receive Historic Tax Credits pursuant to Section 47 of the Internal Revenue Code. The purpose of these entities is the rehabilitation of historic buildings with the tax credits provided to incent private investment in the historic cores of cities and towns. These entities are considered VIEs as FHCIG, the holder of the equity investment at risk, does not have the ability to direct the activities that most significantly affect the performance of the entity through voting rights or similar rights. FHCIG could absorb losses that are significant to the entities as it has a risk of loss for its capital contributions and funding commitments to each partnership. The managing members are considered the primary beneficiaries as managerial functions give them the power to direct the activities that most significantly impact the entities’ economic performance and the managing members are exposed to all losses beyond FHCIG’s initial capital contributions and funding commitments. Small Issuer Trust Preferred Holdings . FHB holds variable interests in trusts which have issued mandatorily redeemable preferred capital securities (“trust preferreds”) for smaller banking and insurance enterprises. FHB has no voting rights for the trusts’ activities. The trusts’ only assets are junior subordinated debentures of the issuing enterprises. The creditors of the trusts hold no recourse to the assets of FHB. These trusts meet the definition of a VIE as the holders of the equity investment at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the trusts’ economic performance. Based on the nature of the trusts’ activities and the size of FHB’s holdings, FHB could potentially receive benefits or absorb losses that are significant to the trusts regardless of whether a majority of a trust’s securities are held by FHB. However, since FHB is solely a holder of the trusts’ securities, it has no rights which would give it the power to direct the activities that most significantly impact the trusts’ economic performance and thus it is not considered the primary beneficiary of the trusts. FHB has no contractual requirements to provide financial support to the trusts. On-Balance Sheet Trust Preferred Securitization. In 2007, FHB executed a securitization of certain small issuer trust preferreds for which the underlying trust meets the definition of a VIE as the holders of the equity investment at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entity’s economic performance. FHB could potentially receive benefits or absorb losses that are significant to the trust based on the size and priority of the interests it retained in the securities issued by the trust. However, since FHB did not retain servicing or other decision making rights, FHB is not the primary beneficiary as it does not have the power to direct the activities that most significantly impact the trust’s economic performance. Accordingly, FHB has accounted for the funds received through the securitization as a term borrowing in its Consolidated Condensed Statements of Condition. FHB has no contractual requirements to provide financial support to the trust. Proprietary Residential Mortgage Securitizations. FHN holds variable interests (primarily principal-only strips) in proprietary residential mortgage securitization trusts it established prior to 2008 as a source of liquidity for its mortgage banking operations. Except for recourse due to breaches of representations and warranties made by FHN in connection with the sale of the loans to the trusts, the creditors of the trusts hold no recourse to the assets of FHN. Additionally, FHN has no contractual requirements to provide financial support to the trusts. Based on their restrictive nature, the trusts are considered VIEs as the holders of equity at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the trusts’ economic performance. However, FHN did not have the ability to participate in significant portions of a securitization trust’s cash flows and FHN was not considered the primary beneficiary of the trust. Therefore, these trusts were not consolidated by FHN. Holdings in Agency Mortgage-Backed Securities. FHN holds securities issued by various Agency securitization trusts. Based on their restrictive nature, the trusts meet the definition of a VIE since the holders of the equity investments at risk do not have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entities’ economic performance. FHN could potentially receive benefits or absorb losses that are significant to the trusts based on the nature of the trusts’ activities and the size of FHN’s holdings. However, FHN is solely a holder of the trusts’ securities and does not have the power to direct the activities that most significantly impact the trusts’ economic performance, and is not considered the primary beneficiary of the trusts. FHN has no contractual requirements to provide financial support to the trusts. Commercial Loan Troubled Debt Restructurings. For certain troubled commercial loans, FHB restructures the terms of the borrower’s debt in an effort to increase the probability of receipt of amounts contractually due. Following a troubled debt restructuring, the borrower entity typically meets the definition of a VIE as the initial determination of whether an entity is a VIE must be reconsidered as events have proven that the entity’s equity is not sufficient to permit it to finance its activities without additional subordinated financial support or a restructuring of the terms of its financing. As FHB does not have the power to direct the activities that most significantly impact such troubled commercial borrowers’ operations, it is not considered the primary beneficiary even in situations where, based on the size of the financing provided, FHB is exposed to potentially significant benefits and losses of the borrowing entity. FHB has no contractual requirements to provide financial support to the borrowing entities beyond certain funding commitments established upon restructuring of the terms of the debt that allows for preparation of the underlying collateral for sale. Sale Leaseback Transaction . FHB has entered into an agreement with a single asset leasing entity for the sale and leaseback of an office building. In conjunction with this transaction, FHB loaned funds to a related party of the buyer that were used for the purchase price of the building. FHB also entered into a construction loan agreement with the single asset entity for renovation of the building. Since this transaction did not qualify as a sale prior to 2019, it was accounted for using the deposit method which created a net asset or liability for all cash flows between FHB and the buyer. Upon adoption of ASU 2016-02 the transaction qualified as a seller-financed sale-leaseback. The buyer-lessor in this transaction meets the definition of a VIE as it does not have sufficient equity at risk since FHB is providing the funding for the purchase and renovation. A related party of the buyer-lessor has the power to direct the activities that most significantly impact the operations and could potentially receive benefits or absorb losses that are significant to the transactions, making it the primary beneficiary. Therefore, FHB does not consolidate the leasing entity. Proprietary Trust Preferred Issuances . In conjunction with the acquisition of CBF, FHN acquired junior subordinated debt underlying multiple issuances of trust preferred debt by institutions previously acquired by CBF. All of the remaining trusts are considered VIEs because the ownership interests from the capital contributions to these trusts are not considered “at risk” in evaluating whether the holders of the equity investments at risk in the trusts have the power through voting rights, or similar rights, to direct the activities that most significantly impact the entities’ economic performance. Thus, FHN cannot be the trusts’ primary beneficiary because its ownership interests in the trusts are not considered variable interests as they are not considered “at risk”. Consequently, none of the trusts are consolidated by FHN. The following table summarizes FHN’s nonconsolidated VIEs as of September 30, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 183,975 $ 96,637 (a) Other tax credit investments (b) (c) 9,226 — Other assets Small issuer trust preferred holdings (d) 237,422 — Loans, net of unearned income On-balance sheet trust preferred securitization 33,384 80,790 (e) Proprietary residential mortgage securitizations 1,098 — Trading securities Holdings of agency mortgage-backed securities (d) 4,762,162 — (f) Commercial loan troubled debt restructurings (g) 47,940 — Loans, net of unearned income Sale-leaseback transaction 18,170 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $87.3 million of current investments and $96.6 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2021. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $80.8 million classified as Term borrowings. (f) Includes $.7 billion classified as Trading securities and $4.1 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $46.7 million of current receivables and $1.2 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments. (i) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2018 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 156,056 $ 80,427 (a) Other tax credit investments (b) (c) 3,619 — Other assets Small issuer trust preferred holdings (d) 270,585 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,532 76,642 (e) Proprietary residential mortgage securitizations 1,524 — Trading securities Holdings of agency mortgage-backed securities (d) 4,842,630 — (f) Commercial loan troubled debt restructurings (g) 40,590 — Loans, net of unearned income Sale-leaseback transaction 16,327 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $75.6 million of current investments and $80.4 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2020. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $76.6 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.4 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $38.2 million of current receivables and $ 2.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments less amounts received from the buyer-lessor. (i)

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives In the normal course of business, FHN utilizes various financial instruments (including derivative contracts and credit-related agreements) through its fixed income and risk management operations, as part of its risk management strategy and as a means to meet customers’ needs. Derivative instruments are subject to credit and market risks in excess of the amount recorded on the balance sheet as required by GAAP. The contractual or notional amounts of these financial instruments do not necessarily represent the amount of credit or market risk. However, they can be used to measure the extent of involvement in various types of financial instruments. Controls and monitoring procedures for these instruments have been established and are routinely reevaluated. The Asset/Liability Committee (“ALCO”) controls, coordinates, and monitors the usage and effectiveness of these financial instruments. Credit risk represents the potential loss that may occur if a party to a transaction fails to perform according to the terms of the contract. The measure of credit exposure is the replacement cost of contracts with a positive fair value. FHN manages credit risk by entering into financial instrument transactions through national exchanges, primary dealers or approved counterparties, and by using mutual margining and master netting agreements whenever possible to limit potential exposure. FHN also maintains collateral posting requirements with certain counterparties to limit credit risk. Daily margin posted or received with central clearinghouses is considered a legal settlement of the related derivative contracts which results in a net presentation for each contract in the Consolidated Condensed Statements of Condition. Treatment of daily margin as a settlement has no effect on hedge accounting or gains/losses for the applicable derivative contracts. On September 30, 2019 and December 31, 2018 , respectively, FHN had $127.3 million and $76.0 million of cash receivables and $55.7 million and $34.0 million of cash payables related to collateral posting under master netting arrangements, inclusive of collateral posted related to contracts with adjustable collateral posting thresholds and over-collateralized positions, with derivative counterparties. With exchange-traded contracts, the credit risk is limited to the clearinghouse used. For non-exchange traded instruments, credit risk may occur when there is a gain in the fair value of the financial instrument and the counterparty fails to perform according to the terms of the contract and/or when the collateral proves to be of insufficient value. See additional discussion regarding master netting agreements and collateral posting requirements later in this note under the heading “Master Netting and Similar Agreements.” Market risk represents the potential loss due to the decrease in the value of a financial instrument caused primarily by changes in interest rates or the prices of debt instruments. FHN manages market risk by establishing and monitoring limits on the types and degree of risk that may be undertaken. FHN continually measures this risk through the use of models that measure value-at-risk and earnings-at-risk. Derivative Instruments. FHN enters into various derivative contracts both in a dealer capacity to facilitate customer transactions and as a risk management tool. Where contracts have been created for customers, FHN enters into upstream transactions with dealers to offset its risk exposure. Contracts with dealers that require central clearing are novated to a clearing agent who becomes FHN’s counterparty. Derivatives are also used as a risk management tool to hedge FHN’s exposure to changes in interest rates or other defined market risks. Forward contracts are over-the-counter contracts where two parties agree to purchase and sell a specific quantity of a financial instrument at a specified price, with delivery or settlement at a specified date. Futures contracts are exchange-traded contracts where two parties agree to purchase and sell a specific quantity of a financial instrument at a specified price, with delivery or settlement at a specified date. Interest rate option contracts give the purchaser the right, but not the obligation, to buy or sell a specified quantity of a financial instrument, at a specified price, during a specified period of time. Caps and floors are options that are linked to a notional principal amount and an underlying indexed interest rate. Interest rate swaps involve the exchange of interest payments at specified intervals between two parties without the exchange of any underlying principal. Swaptions are options on interest rate swaps that give the purchaser the right, but not the obligation, to enter into an interest rate swap agreement during a specified period of time. Trading Activities FHN’s fixed income segment trades U.S. Treasury, U.S. Agency, government-guaranteed loan, mortgage-backed, corporate and municipal fixed income securities, and other securities for distribution to customers. When these securities settle on a delayed basis, they are considered forward contracts. Fixed income also enters into interest rate contracts, including caps, swaps, and floors, for its customers. In addition, fixed income enters into futures and option contracts to economically hedge interest rate risk associated with a portion of its securities inventory. These transactions are measured at fair value, with changes in fair value recognized currently in fixed income noninterest income. Related assets and liabilities are recorded on the Consolidated Condensed Statements of Condition as Derivative assets and Derivative liabilities. The FHN Financial Risk Committee and the Credit Risk Management Committee collaborate to mitigate credit risk related to these transactions. Credit risk is controlled through credit approvals, risk control limits, and ongoing monitoring procedures. Total trading revenues were $63.6 million and $34.3 million for the three months ended September 30, 2019 and 2018 , and $162.7 million and $102.3 million for the nine months ended September 30, 2019 and 2018 , respectively. Trading revenues are inclusive of both derivative and non-derivative financial instruments, and are included in Fixed income noninterest income on the Consolidated Condensed Statements of Income. The following tables summarize FHN’s derivatives associated with fixed income trading activities as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,679,166 $ 93,314 $ 1,285 Offsetting upstream interest rate contracts 2,679,166 541 5,509 Option contracts purchased 20,000 94 — Forwards and futures purchased 10,765,259 26,191 8,233 Forwards and futures sold 10,799,031 9,327 25,586 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,271,448 $ 18,744 $ 27,768 Offsetting upstream interest rate contracts 2,271,448 4,014 9,041 Option contracts purchased 20,000 25 — Forwards and futures purchased 4,684,177 28,304 181 Forwards and futures sold 4,967,454 522 30,055 Interest Rate Risk Management FHN’s ALCO focuses on managing market risk by controlling and limiting earnings volatility attributable to changes in interest rates. Interest rate risk exists to the extent that interest-earning assets and interest-bearing liabilities have different maturity or repricing characteristics. FHN uses derivatives, primarily swaps, that are designed to moderate the impact on earnings as interest rates change. Interest paid or received for swaps utilized by FHN to hedge the fair value of long term debt is recognized as an adjustment of the interest expense of the liabilities whose risk is being managed. FHN’s interest rate risk management policy is to use derivatives to hedge interest rate risk or market value of assets or liabilities, not to speculate. In addition, FHN has entered into certain interest rate swaps and caps as a part of a product offering to commercial customers that includes customer derivatives paired with upstream offsetting market instruments that, when completed, are designed to mitigate interest rate risk. These contracts do not qualify for hedge accounting and are measured at fair value with gains or losses included in current earnings in Noninterest expense on the Consolidated Condensed Statements of Income. FHN has designated a derivative transaction in a hedging strategy to manage interest rate risk on $400.0 million of senior debt issued by FHB which matures in December 2019. This qualifies for hedge accounting under ASC 815-20 using the long-haul method. FHN entered into a pay floating, receive fixed interest rate swap to hedge the interest rate risk of the senior debt. FHB early redeemed the $400.0 million senior debt on November 1, 2019. FHN has designated a derivative transaction in a hedging strategy to manage interest rate risk on $500.0 million of senior debt which matures in December 2020. This qualifies for hedge accounting under ASC 815-20 using the long-haul method. FHN entered into a pay floating, receive fixed interest rate swap to hedge the interest rate risk of the senior debt. The following tables summarize FHN’s derivatives associated with interest rate risk management activities as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,681,149 $ 120,031 $ 1,456 Offsetting upstream interest rate contracts 2,681,149 1,094 13,072 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 42 $ 14 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (2,218 ) Unamortized premium/(discount) and issuance costs N/A N/A (1,084 ) Total carrying value N/A N/A $ 896,698 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,029,162 $ 20,262 $ 25,880 Offsetting upstream interest rate contracts 2,029,162 8,154 9,153 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 127 $ 6 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (15,094 ) Unamortized premium/(discount) and issuance costs N/A N/A (2,295 ) Total carrying value N/A N/A $ 882,611 The following table summarizes gains/(losses) on FHN’s derivatives associated with interest rate risk management activities for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended 2019 2018 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts (a) $ 44,375 $ (10,620 ) $ 124,193 $ (39,803 ) Offsetting upstream interest rate contracts (a) (44,375 ) 10,620 (124,193 ) 39,803 Debt Hedging Hedging Instruments: Interest rate swaps (b) $ 1,994 $ (246 ) $ 12,969 $ (8,386 ) Hedged Items: Term borrowings (a) (c) (2,004 ) 240 (12,876 ) 8,310 (a) Gains/losses included in All other expense within the Consolidated Condensed Statements of Income. (b) Gains/losses included in the Interest expense. (c) Represents gains and losses attributable to changes in fair value due to interest rate risk as designated in ASC 815-20 hedging relationships. In first quarter 2016, FHN entered into a pay floating, receive fixed interest rate swap in a hedging strategy to manage its exposure to the variability in cash flows related to the interest payments for the following five years on $250 million principal of debt instruments, which primarily consist of held-to-maturity trust preferred loans that have variable interest payments based on 3-month LIBOR. In first quarter 2017, FHN initiated cash flow hedges of $650 million notional amount that had initial durations between three and seven years . The debt instruments primarily consist of held-to-maturity commercial loans that have variable interest payments based on 1-month LIBOR. These qualify for hedge accounting as cash flow hedges under ASC 815-20. All changes in the fair value of these derivatives are recorded as a component of AOCI. Amounts are reclassified from AOCI to earnings as the hedged cash flows affect earnings. Interest paid or received for these swaps is recognized as an adjustment to interest income of the assets whose cash flows are being hedged. The following tables summarize FHN’s derivative activities associated with cash flow hedges as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 10 $ 73 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 888 $ 5 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A The following table summarizes gains/(losses) on FHN’s derivatives associated with cash flow hedges for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended 2019 2018 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 3,840 $ (2,257 ) $ 22,954 $ (17,788 ) Gain/(loss) recognized in Other comprehensive income/(loss) 1,855 (2,517 ) 13,367 (14,612 ) Gain/(loss) reclassified from AOCI into Interest income 989 771 3,773 1,079 (a) Approximately $1.3 million of pre-tax losses are expected to be reclassified into earnings in the next twelve months. Other Derivatives In conjunction with the sales of a portion of its Visa Class B shares in 2010 and 2011, FHN and the purchaser entered into derivative transactions whereby FHN will make or receive cash payments whenever the conversion ratio of the Visa Class B shares into Visa Class A shares is adjusted. FHN is also required to make periodic financing payments to the purchasers until all of Visa's covered litigation matters are resolved. In third quarter 2018, FHN sold the remainder of its Visa Class B shares, entering into a similar derivative arrangement with the counterparty. All of these derivatives extend until the end of Visa’s Covered Litigation matters. In September 2018, Visa reached a preliminary settlement for one class of plaintiffs in its Payment Card Interchange matter which has received court approval. This settlement contains opt out provisions for individual plaintiffs as well as a termination option if opt outs exceed a specified threshold. Settlement has not been reached with the second class of plaintiffs in this matter and other covered litigation matters are also pending judicial resolution. Accordingly, the value and timing for completion of Visa’s Covered Litigation matters are uncertain. The derivative transaction executed in third quarter 2018 includes a contingent accelerated termination clause based on the credit ratings of FHN and FHB. FHN has not received or paid collateral related to this contract. As of September 30, 2019 and December 31, 2018 , the derivative liabilities associated with the sales of Visa Class B shares were $28.1 million and $31.5 million , respectively. See Note 17 - Fair Value of Assets & Liabilities for discussion of the valuation inputs and processes for these Visa-related derivatives. FHN utilizes cross currency swaps and cross currency interest rate swaps to economically hedge its exposure to foreign currency risk and interest rate risk associated with non-U.S. dollar denominated loans. As of September 30, 2019 and December 31, 2018 , these loans were valued at $21.3 million and $11.0 million , respectively. The balance sheet amount and the gains/losses associated with these derivatives were not significant. Master Netting and Similar Agreements As previously discussed, FHN uses master netting agreements, mutual margining agreements and collateral posting requirements to minimize credit risk on derivative contracts. Master netting and similar agreements are used when counterparties have multiple derivatives contracts that allow for a “right of setoff,” meaning that a counterparty may net offsetting positions and collateral with the same counterparty under the contract to determine a net receivable or payable. The following discussion provides an overview of these arrangements which may vary due to the derivative type and market in which a derivative transaction is executed. Interest rate derivatives are subject to agreements consistent with standard agreement forms of the International Swap and Derivatives Association (“ISDA”). Currently, all interest rate derivative contracts are entered into as over-the-counter transactions and collateral posting requirements are based on the net asset or liability position with each respective counterparty. For contracts that require central clearing, novation to a counterparty with access to a clearinghouse occurs and margin is posted. Cash margin received (posted) that is considered settlements for the derivative contracts is included in the respective derivative asset (liability) value. Cash margin that is considered collateral received (posted) for interest rate derivatives is recognized as a liability (asset) on FHN’s Consolidated Condensed Statements of Condition. Interest rate derivatives with customers that are smaller financial institutions typically require posting of collateral by the counterparty to FHN. This collateral is subject to a threshold with daily adjustments based upon changes in the level or fair value of the derivative position. Positions and related collateral can be netted in the event of default. Collateral pledged by a counterparty is typically cash or securities. The securities pledged as collateral are not recognized within FHN’s Consolidated Condensed Statements of Condition. Interest rate derivatives associated with lending arrangements share the collateral with the related loan(s). The derivative and loan positions may be netted in the event of default. For disclosure purposes, the entire collateral amount is allocated to the loan. Interest rate derivatives with larger financial institutions entered into prior to required central clearing typically contain provisions whereby the collateral posting thresholds under the agreements adjust based on the credit ratings of both counterparties. If the credit rating of FHN and/or FHB is lowered, FHN could be required to post additional collateral with the counterparties. Conversely, if the credit rating of FHN and/or FHB is increased, FHN could have collateral released and be required to post less collateral in the future. Also, if a counterparty’s credit ratings were to decrease, FHN and/or FHB could require the posting of additional collateral; whereas if a counterparty’s credit ratings were to increase, the counterparty could require the release of excess collateral. Collateral for these arrangements is adjusted daily based on changes in the net fair value position with each counterparty. The net fair value, determined by individual counterparty, of all derivative instruments with adjustable collateral posting thresholds was $92.3 million of assets and $3.3 million of liabilities on September 30, 2019 , and $15.0 million of assets and $34.9 million of liabilities on December 31, 2018 . As of September 30, 2019 and December 31, 2018 , FHN had received collateral of $165.4 million and $80.2 million and posted collateral of $21.6 million and $13.3 million , respectively, in the normal course of business related to these agreements. Certain agreements entered into prior to required central clearing also contain accelerated termination provisions, inclusive of the right of offset, if a counterparty’s credit rating falls below a specified level. If a counterparty’s debt rating (including FHN’s and FHB’s) were to fall below these minimums, these provisions would be triggered, and the counterparties could terminate the agreements and require immediate settlement of all derivative contracts under the agreements. The net fair value, determined by individual counterparty, of all derivative instruments with credit-risk-related contingent accelerated termination provisions was $92.3 million of assets and $7.2 million of liabilities on September 30, 2019 , and $19.0 million of assets and $33.2 million of liabilities on December 31, 2018 . As of September 30, 2019 and December 31, 2018 , FHN had received collateral of $165.4 million and $84.5 million and posted collateral of $26.1 million and $15.2 million , respectively, in the normal course of business related to these contracts. FHN’s fixed income segment buys and sells various types of securities for its customers. When these securities settle on a delayed basis, they are considered forward contracts, and are generally not subject to master netting agreements. For futures and options, FHN transacts through a third party, and the transactions are subject to margin and collateral maintenance requirements. In the event of default, open positions can be offset along with the associated collateral. For this disclosure, FHN considers the impact of master netting and other similar agreements which allow FHN to settle all contracts with a single counterparty on a net basis and to offset the net derivative asset or liability position with the related securities and cash collateral. The application of the collateral cannot reduce the net derivative asset or liability position below zero, and therefore any excess collateral is not reflected in the following tables. The following table provides details of derivative assets and collateral received as presented on the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition (a) Derivative liabilities available for offset Collateral received Net amount Derivative assets: September 30, 2019 (b) $ 215,085 $ — $ 215,085 $ (2,957 ) $ (162,303 ) $ 49,825 December 31, 2018 (b) 52,562 — 52,562 (12,745 ) (39,637 ) 180 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of September 30, 2019 and December 31, 2018 , $35.7 million and $28.9 million , respectively, of derivative assets (primarily fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts. The following table provides details of derivative liabilities and collateral pledged as presented on the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition (a) Derivative assets available for offset Collateral pledged Net amount Derivative liabilities: September 30, 2019 (b) $ 21,526 $ — $ 21,526 $ (2,957 ) $ (18,269 ) $ 300 December 31, 2018 (b) 71,853 — 71,853 (12,745 ) (54,773 ) 4,335 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of September 30, 2019 and December 31, 2018 , $62.0 million and $61.9 million , respectively, of derivative liabilities (primarily Visa-related derivatives and fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.

Master Netting and Similar Agre

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions	9 Months Ended
	Sep. 30, 2019
Offsetting [Abstract]
Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions	Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions For repurchase, reverse repurchase and securities borrowing transactions, FHN and each counterparty have the ability to offset all open positions and related collateral in the event of default. Due to the nature of these transactions, the value of the collateral for each transaction approximates the value of the corresponding receivable or payable. For repurchase agreements through FHN’s fixed income business (Securities purchased under agreements to resell and Securities sold under agreements to repurchase), transactions are collateralized by securities and/or government guaranteed loans which are delivered on the settlement date and are maintained throughout the term of the transaction. For FHN’s repurchase agreements through banking activities (Securities sold under agreements to repurchase), securities are typically pledged at settlement and not released until maturity. For asset positions, the collateral is not included on FHN’s Consolidated Condensed Statements of Condition. For liability positions, securities collateral pledged by FHN is generally represented within FHN’s trading or available-for-sale securities portfolios. For this disclosure, FHN considers the impact of master netting and other similar agreements that allow FHN to settle all contracts with a single counterparty on a net basis and to offset the net asset or liability position with the related securities collateral. The application of the collateral cannot reduce the net asset or liability position below zero, and therefore any excess collateral is not reflected in the tables below. The following table provides details of Securities purchased under agreements to resell as presented on the Consolidated Condensed Statements of Condition and collateral pledged by counterparties as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition Offsetting securities sold under agreements to repurchase Securities collateral (not recognized on FHN’s Statements of Condition) Net amount Securities purchased under agreements to resell: September 30, 2019 $ 697,214 $ — $ 697,214 $ (449 ) $ (693,737 ) $ 3,028 December 31, 2018 386,443 — 386,443 (261 ) (382,756 ) 3,426 The following table provides details of Securities sold under agreements to repurchase as presented on the Consolidated Condensed Statements of Condition and collateral pledged by FHN as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition Offsetting securities purchased under agreements to resell Securities/ government guaranteed loans collateral Net amount Securities sold under agreements to repurchase: September 30, 2019 $ 735,226 $ — $ 735,226 $ (449 ) $ (734,763 ) $ 14 December 31, 2018 762,592 — 762,592 (261 ) (762,322 ) 9 Due to the short duration of Securities sold under agreements to repurchase and the nature of collateral involved, the risks associated with these transactions are considered minimal. The following tables provide details, by collateral type, of the remaining contractual maturity of Securities sold under agreements to repurchase as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 22,388 $ — $ 22,388 Government agency issued MBS 364,419 8,960 373,379 Other U.S. government agencies 63,673 — 63,673 Government guaranteed loans (SBA and USDA) 275,786 — 275,786 Total Securities sold under agreements to repurchase $ 726,266 $ 8,960 $ 735,226 December 31, 2018 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 16,321 $ — $ 16,321 Government agency issued MBS 414,488 5,220 419,708 Government agency issued CMO 36,688 — 36,688 Government guaranteed loans (SBA and USDA) 289,875 — 289,875 Total Securities sold under agreements to repurchase $ 757,372 $ 5,220 $ 762,592

Fair Value of Assets & Liabilit

Fair Value of Assets & Liabilities	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Assets & Liabilities	Fair Value of Assets & Liabilities FHN groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. This hierarchy requires FHN to maximize the use of observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. Each fair value measurement is placed into the proper level based on the lowest level of significant input. These levels are: • Level 1—Valuation is based upon quoted prices for identical instruments traded in active markets. • Level 2—Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. • Level 3—Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models, and similar techniques. Recurring Fair Value Measurements The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of September 30, 2019 : September 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 123,871 $ — $ 123,871 Government agency issued MBS — 194,543 — 194,543 Government agency issued CMO — 498,967 — 498,967 Other U.S. government agencies — 159,720 — 159,720 States and municipalities — 86,185 — 86,185 Corporate and other debt — 329,440 — 329,440 Equity, mutual funds, and other — 1,219 — 1,219 Total trading securities—fixed income — 1,393,945 — 1,393,945 Trading securities—mortgage banking — — 1,098 1,098 Loans held-for-sale (elected fair value) — — 14,409 14,409 Securities available-for-sale: U.S. treasuries — 100 — 100 Government agency issued MBS — 2,284,432 — 2,284,432 Government agency issued CMO — 1,784,220 — 1,784,220 Other U.S. government agencies — 241,333 — 241,333 States and municipalities — 50,071 — 50,071 Corporate and other debt — 40,440 — 40,440 Interest-Only Strip (elected fair value) — — 15,249 15,249 Total securities available-for-sale — 4,400,596 15,249 4,415,845 Other assets: Deferred compensation mutual funds 43,826 — — 43,826 Equity, mutual funds, and other 22,442 — — 22,442 Derivatives, forwards and futures 35,518 — — 35,518 Derivatives, interest rate contracts — 215,126 — 215,126 Derivatives, other — 142 — 142 Total other assets 101,786 215,268 — 317,054 Total assets $ 101,786 $ 6,009,809 $ 30,756 $ 6,142,351 Trading liabilities—fixed income: U.S. treasuries $ — $ 505,237 $ — $ 505,237 Other U.S.government agencies — 11,357 — 11,357 States and municipalities — 2,076 — 2,076 Government issued agency CMO — 1,613 — 1,613 Corporate and other debt — 199,494 — 199,494 Total trading liabilities—fixed income — 719,777 — 719,777 Other liabilities: Derivatives, forwards and futures 33,819 — — 33,819 Derivatives, interest rate contracts — 21,409 — 21,409 Derivatives, other — 217 28,085 28,302 Total other liabilities 33,819 21,626 28,085 83,530 Total liabilities $ 33,819 $ 741,403 $ 28,085 $ 803,307 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 : December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 169,799 $ — $ 169,799 Government agency issued MBS — 133,373 — 133,373 Government agency issued CMO — 330,456 — 330,456 Other U.S. government agencies — 76,733 — 76,733 States and municipalities — 54,234 — 54,234 Corporate and other debt — 682,068 — 682,068 Equity, mutual funds, and other — (19 ) — (19 ) Total trading securities—fixed income — 1,446,644 — 1,446,644 Trading securities—mortgage banking — — 1,524 1,524 Loans held-for-sale (elected fair value) — — 16,273 16,273 Securities available-for-sale: U.S. treasuries — 98 — 98 Government agency issued MBS — 2,420,106 — 2,420,106 Government agency issued CMO — 1,958,695 — 1,958,695 Other U.S. government agencies — 149,786 — 149,786 States and municipalities — 32,573 — 32,573 Corporate and other debt — 55,310 — 55,310 Interest-Only Strip (elected fair value) — — 9,902 9,902 Total securities available-for-sale — 4,616,568 9,902 4,626,470 Other assets: Deferred compensation mutual funds 37,771 — — 37,771 Equity, mutual funds, and other 22,248 — — 22,248 Derivatives, forwards and futures 28,826 — — 28,826 Derivatives, interest rate contracts — 52,214 — 52,214 Derivatives, other — 435 — 435 Total other assets 88,845 52,649 — 141,494 Total assets $ 88,845 $ 6,115,861 $ 27,699 $ 6,232,405 Trading liabilities—fixed income: U.S. treasuries $ — $ 207,739 $ — $ 207,739 Other U.S.government agencies — 98 — 98 Corporate and other debt — 127,543 — 127,543 Total trading liabilities—fixed income — 335,380 — 335,380 Other liabilities: Derivatives, forwards and futures 30,236 — — 30,236 Derivatives, interest rate contracts — 71,853 — 71,853 Derivatives, other — 84 31,540 31,624 Total other liabilities 30,236 71,937 31,540 133,713 Total liabilities $ 30,236 $ 407,317 $ 31,540 $ 469,093 Changes in Recurring Level 3 Fair Value Measurements The changes in Level 3 assets and liabilities measured at fair value for the three months ended September 30, 2019 and 2018 , on a recurring basis are summarized as follows: Three Months Ended September 30, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on July 1, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Total net gains/(losses) included in: Net income (157 ) (1,421 ) 443 (4,008 ) Purchases — — — — Sales — (11,401 ) — — Settlements — — (1,126 ) 2,468 Net transfers into/(out of) Level 3 — 10,279 (b) — (d) — Balance on September 30, 2019 $ 1,098 $ 15,249 $ 14,409 $ (28,085 ) Net unrealized gains/(losses) included in net income $ — (a) $ (1,977 ) (c) $ 443 (a) $ (4,008 ) (e) Three Months Ended September 30, 2018 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative Balance on July 1, 2018 $ 1,724 $ 5,787 $ 16,718 $ (9,425 ) Total net gains/(losses) included in: Net income 33 (456 ) 277 (529 ) Purchases — — — (28,100 ) (f) Sales — (2,034 ) — — Settlements (165 ) — (759 ) 3,842 Net transfers into/(out of) Level 3 — 7,064 (b) — (d) — Balance on September 30, 2018 $ 1,592 $ 10,361 $ 16,236 $ (34,212 ) Net unrealized gains/(losses) included in net income $ (3 ) (a) $ (215 ) (c) $ 277 (a) $ (530 ) (e) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into OREO (level 3 nonrecurring). (e) Included in Other expense. (f) Increase associated with Visa-related derivatives executed in third quarter 2018, see Note 15 - Derivatives for additional discussion. There were no net unrealized gains/(losses) for Level 3 assets and liabilities included in other comprehensive income as of September 30, 2019 and 2018. Changes in Recurring Level 3 Fair Value Measurements The changes in Level 3 assets and liabilities measured at fair value for the nine months ended September 30, 2019 and 2018 , on a recurring basis are summarized as follows: Nine Months Ended September 30, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on January 1, 2019 $ 1,524 $ 9,902 $ 16,273 $ (31,540 ) Total net gains/(losses) included in: Net income (128 ) (2,820 ) 1,259 (3,892 ) Purchases — 86 10 — Sales — (38,612 ) — — Settlements (298 ) — (3,133 ) 7,347 Net transfers into/(out of) Level 3 — 46,693 (b) — (d) — Balance on September 30, 2019 $ 1,098 $ 15,249 $ 14,409 $ (28,085 ) Net unrealized gains/(losses) included in net income $ (66 ) (a) $ (1,250 ) (c) $ 1,259 (a) $ (3,892 ) (e) Nine Months Ended September 30, 2018 (Dollars in thousands) Trading Interest-only-strips- AFS Loans held- Net derivative Balance on January 1, 2018 $ 2,151 $ 1,270 $ 18,926 $ (5,645 ) Total net gains/(losses) included in: Net income 173 840 986 (4,904 ) Purchases — — 62 (28,100 ) (f) Sales — (11,227 ) — — Settlements (732 ) — (3,382 ) 4,437 Net transfers into/(out of) Level 3 — 19,478 (b) (356 ) (d) — Balance on September 30, 2018 $ 1,592 $ 10,361 $ 16,236 $ (34,212 ) Net unrealized gains/(losses) included in net income $ 59 (a) $ (279 ) (c) $ 986 (a) $ (4,904 ) (e) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into OREO (level 3 nonrecurring). (e) Included in Other expense. (f) Increase associated with Visa-related derivatives executed in third quarter 2018, see Note 15 - Derivatives for additional discussion. Nonrecurring Fair Value Measurements From time to time, FHN may be required to measure certain other financial assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower of cost or market (“LOCOM”) accounting or write-downs of individual assets. For assets measured at fair value on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at September 30, 2019 , and December 31, 2018 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at September 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 448,166 $ 945 $ 449,111 Loans held-for-sale—first mortgages — — 519 519 Loans, net of unearned income (a) — — 54,092 54,092 OREO (b) — — 17,816 17,816 Other assets (c) — — 13,777 13,777 Carrying value at December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,712 $ — $ 18,712 Loans held-for-sale—SBAs and USDA — 577,280 1,011 578,291 Loans held-for-sale—first mortgages — — 541 541 Loans, net of unearned income (a) — — 48,259 48,259 OREO (b) — — 22,387 22,387 Other assets (c) — — 8,845 8,845 (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. For assets measured on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at period end, the following table provides information about the fair value adjustments recorded during the three and nine months ended September 30, 2019 and 2018 : Net gains/(losses) Net gains/(losses) (Dollars in thousands) 2019 2018 2019 2018 Loans held-for-sale—SBAs and USDA $ (977 ) $ (1,213 ) $ (1,208 ) $ (2,464 ) Loans held-for-sale—first mortgages 2 3 27 7 Loans, net of unearned income (a) (15,559 ) 363 (16,036 ) 1,020 OREO (b) (282 ) (776 ) (256 ) (2,198 ) Other assets (c) (407 ) (1,370 ) (1,349 ) (3,586 ) $ (17,223 ) $ (2,993 ) $ (18,822 ) $ (7,221 ) (a) Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents losses of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. In third quarter 2019, FHN recognized $2.4 million of impairments and $.4 million impairment reversals, respectively, related to dispositions of acquired properties. Also in third quarter 2019, FHN recognized $1.0 million of impairments and $.7 million of impairment reversals, respectively, for lease assets related to its restructuring, repositioning and efficiency efforts. Related to its restructuring, repositioning, and efficiency efforts, FHN recognized $11.4 million and $.5 million of impairments for tangible long-lived assets in second and first quarter 2019, respectively. FHN also recognized $.3 million and $.8 million of impairments for lease assets in second and first quarter 2019, respectively, related to these efforts. These amounts primarily related to branch optimization and were recognized in the Corporate segment. In second quarter 2019, FHN recognized $7.1 million of impairments within the Corporate segment for long-lived tangible assets, primarily signage, related to the company's rebranding initiative. Also in second quarter 2019, FHN recognized $1.5 million of impairments for lease assets related to continuing acquisition integration efforts associated with reduction of leased office space. In second quarter 2019 FHN recognized $.8 million of impairments and $.3 million of impairment reversals, respectively, related to dispositions of acquired properties. These amounts were recognized in the Corporate segment. In fourth, third, and second quarters of 2018, FHN recognized $1.9 million , $.7 million , and $1.3 million , respectively, of impairments of long-lived assets in its Corporate segment primarily related to optimization efforts for its facilities. In fourth and third quarter 2018 $.5 million and $1.0 million , respectively, of impairment charges previously recognized in 2017 in the Corporate segment were reversed based on the disposition price for the applicable location. Lease asset impairments recognized in 2019 represent the reduction in value of the right-of-use assets associated with leases that are being exited in advance of the contractual lease expiration. Impairments are measured using a discounted cash flow methodology, which is considered a Level 3 valuation. For all periods, impairments of long-lived tangible assets reflect locations where the associated land and building are either owned or leased. The fair values of owned sites were determined using estimated sales prices from appraisals and broker opinions less estimated costs to sell with adjustments upon final disposition. The fair values of owned assets in leased sites (e.g., leasehold improvements) were determined using a discounted cash flow approach, based on the revised estimated useful lives of the related assets. Both measurement methodologies are considered Level 3 valuations. Impairment adjustments recognized upon disposition of a location are considered Level 2 valuations. Level 3 Measurements The following tables provide information regarding the unobservable inputs utilized in determining the fair value of Level 3 recurring and non-recurring measurements as of September 30, 2019 and December 31, 2018 : (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 15,249 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 15% - 16% 15% Loans held-for-sale - residential real estate 14,928 Discounted cash flow Prepayment speeds - First mortgage 3% - 14% 4.3% Prepayment speeds - HELOC 0% - 12% 7.6% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 4% - 23% of UPB 14.8% Loss severity trends - HELOC 0% - 72% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 945 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 28,085 Discounted cash flow Visa covered litigation resolution amount $5.4 billion - $6.0 billion $5.8 billion Probability of resolution scenarios 10% - 50% 16% Time until resolution 18 - 42 months 32 months Loans, net of unearned 54,092 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 17,816 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 13,777 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 9,902 Discounted cash flow Constant prepayment rate 11% - 12% 11% Bond equivalent yield 14% - 15% 14% Loans held-for-sale - residential real estate 16,815 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 63% Loss severity trends - First mortgage 2% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,011 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 31,540 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 10% - 25% 23% Time until resolution 18 - 48 months 36 months Loans, net of unearned 48,259 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 22,387 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 8,845 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. Securities AFS . Increases (decreases) in estimated prepayment rates and bond equivalent yields negatively (positively) affect the value of SBA interest only strips. Management additionally considers whether the loans underlying related SBA-interest only strips are delinquent, in default or prepaying, and adjusts the fair value down 20 - 100% depending on the length of time in default. Loans held-for-sale. Foreclosure losses and prepayment rates are significant unobservable inputs used in the fair value measurement of FHN’s residential real estate loans held-for-sale. Loss severity trends are also assessed to evaluate the reasonableness of fair value estimates resulting from discounted cash flows methodologies as well as to estimate fair value for newly repurchased loans and loans that are near foreclosure. Significant increases (decreases) in any of these inputs in isolation would result in significantly lower (higher) fair value measurements. All observable and unobservable inputs are re-assessed quarterly. Increases (decreases) in estimated prepayment rates and bond equivalent yields negatively (positively) affect the value of unguaranteed interests in SBA loans. Unguaranteed interest in SBA loans held-for-sale are carried at less than the outstanding balance due to credit risk estimates. Credit risk adjustments may be reduced if prepayment is likely or as consistent payment history is realized. Management also considers other factors such as delinquency or default and adjusts the fair value accordingly. Derivative liabilities. In conjunction with the sales of portions of its Visa Class B shares, FHN and the purchasers entered into derivative transactions whereby FHN will make, or receive, cash payments whenever the conversion ratio of the Visa Class B shares into Visa Class A shares is adjusted. FHN uses a discounted cash flow methodology in order to estimate the fair value of FHN’s derivative liabilities associated with its prior sales of Visa Class B shares. The methodology includes estimation of both the resolution amount for Visa’s Covered Litigation matters as well as the length of time until the resolution occurs. Significant increases (decreases) in either of these inputs in isolation would result in significantly higher (lower) fair value measurements for the derivative liabilities. Additionally, FHN performs a probability weighted multiple resolution scenario to calculate the estimated fair value of these derivative liabilities. Assignment of higher (lower) probabilities to the larger potential resolution scenarios would result in an increase (decrease) in the estimated fair value of the derivative liabilities. Since this estimation process requires application of judgment in developing significant unobservable inputs used to determine the possible outcomes and the probability weighting assigned to each scenario, these derivatives have been classified within Level 3 in fair value measurements disclosures. Loans, net of unearned income and Other Real Estate Owned. Collateral-dependent loans and OREO are primarily valued using appraisals based on sales of comparable properties in the same or similar markets. Other collateral (receivables, inventory, equipment, etc.) is valued through borrowing base certificates, financial statements and/or auction valuations. These valuations are discounted based on the quality of reporting, knowledge of the marketability/collectability of the collateral and historical disposition rates. Other assets – tax credit investments. The estimated fair value of tax credit investments accounted for under the equity method is generally determined in relation to the yield (i.e., future tax credits to be received) an acquirer of these investments would expect in relation to the yields experienced on current new issue and/or secondary market transactions. Thus, as tax credits are recognized, the future yield to a market participant is reduced, resulting in consistent impairment of the individual investments. Individual investments are reviewed for impairment quarterly, which may include the consideration of additional marketability discounts related to specific investments which typically includes consideration of the underlying property’s appraised value. Fair Value Option FHN has elected the fair value option on a prospective basis for almost all types of mortgage loans originated for sale purposes under the Financial Instruments Topic (“ASC 825”) except for mortgage origination operations which utilize the platform acquired from CBF. FHN determined that the election reduces certain timing differences and better matches changes in the value of such loans with changes in the value of derivatives and forward delivery commitments used as economic hedges for these assets at the time of election. Repurchased loans are recognized within loans held-for-sale at fair value at the time of repurchase, which includes consideration of the credit status of the loans and the estimated liquidation value. FHN has elected to continue recognition of these loans at fair value in periods subsequent to reacquisition. Due to the credit-distressed nature of the vast majority of repurchased loans and the related loss severities experienced upon repurchase, FHN believes that the fair value election provides a more timely recognition of changes in value for these loans that occur subsequent to repurchase. Absent the fair value election, these loans would be subject to valuation at the LOCOM value, which would prevent subsequent values from exceeding the initial fair value, determined at the time of repurchase, but would require recognition of subsequent declines in value. Thus, the fair value election provides for a more timely recognition of any potential future recoveries in asset values while not affecting the requirement to recognize subsequent declines in value. The following tables reflect the differences between the fair value carrying amount of residential real estate loans held-for-sale measured at fair value in accordance with management’s election and the aggregate unpaid principal amount FHN is contractually entitled to receive at maturity. September 30, 2019 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 14,409 $ 20,247 $ (5,838 ) Nonaccrual loans 3,679 6,794 (3,115 ) Loans 90 days or more past due and still accruing — — — December 31, 2018 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 16,273 $ 23,567 $ (7,294 ) Nonaccrual loans 4,536 8,128 (3,592 ) Loans 90 days or more past due and still accruing 171 281 (110 ) Assets and liabilities accounted for under the fair value election are initially measured at fair value with subsequent changes in fair value recognized in earnings. Such changes in the fair value of assets and liabilities for which FHN elected the fair value option are included in current period earnings with classification in the income statement line item reflected in the following table: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 443 $ 277 $ 1,259 $ 986 For the three months ended September 30, 2019 , and 2018 , the amounts for residential real estate loans held-for-sale included $.1 million and an insignificant amount, respectively, of gains in pretax earnings that are attributable to changes in instrument-specific credit risk. For the nine months ended September 30, 2019 , and 2018 , the amounts for residential real estate loans held-for-sale included gains of $.4 million and $.3 million , respectively, in pretax earnings that are attributable to changes in instrument-specific credit risk. The portion of the fair value adjustments related to credit risk was determined based on estimated default rates and estimated loss severities. Interest income on residential real estate loans held-for-sale measured at fair value is calculated based on the note rate of the loan and is recorded in the interest income section of the Consolidated Condensed Statements of Income as interest on loans held-for-sale. FHN has elected to account for retained interest-only strips from guaranteed SBA loans recorded in available-for-sale securities at fair value through earnings. Since these securities are subject to the risk that prepayments may result in FHN not recovering all or a portion of its recorded investment, the fair value election results in a more timely recognition of the effects of estimated prepayments through earnings rather than being recognized through other comprehensive income with periodic review for other-than-temporary impairment. Gains or losses are recognized through fixed income revenues and are presented in the recurring measurements table. Determination of Fair Value In accordance with ASC 820-10-35, fair values are based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The following describes the assumptions and methodologies used to estimate the fair value of financial instruments recorded at fair value in the Consolidated Condensed Statements of Condition and for estimating the fair value of financial instruments for which fair value is disclosed under ASC 825-10-50. Short-term financial assets. Federal funds sold, securities purchased under agreements to resell, and interest bearing deposits with other financial institutions and the Federal Reserve are carried at historical cost. The carrying amount is a reasonable estimate of fair value because of the relatively short time between the origination of the instrument and its expected realization. Trading securities and trading liabilities. Trading securities and trading liabilities are recognized at fair value through current earnings. Trading inventory held for broker-dealer operations is included in trading securities and trading liabilities. Broker-dealer long positions are valued at bid price in the bid-ask spread. Short positions are valued at the ask price. Inventory positions are valued using observable inputs including current market transactions, LIBOR and U.S. treasury curves, credit spreads, and consensus prepayment speeds. Trading loans are valued using observable inputs including current market transactions, swap rates, mortgage rates, and consensus prepayment speeds. Trading securities also include retained interests in prior mortgage securitizations that qualify as financial assets, which include primarily principal-only strips. FHN uses inputs including yield curves, credit spreads, and prepayment speeds to determine the fair value of principal-only strips. Securities available-for-sale. Securities available-for-sale includes the investment portfolio accounted for as available-for-sale under ASC 320-10-25. Valuations of available-for-sale securities are performed using observable inputs obtained from market transactions in similar securities. Typical inputs include LIBOR and U.S. treasury curves, consensus prepayment estimates, and credit spreads. When available, broker quotes are used to support these valuations. Interest only strips are valued at elected fair value based on an income approach using an internal valuation model. The internal valuation model includes assumptions regarding projections of future cash flows, prepayment rates, default rates and interest only strip terms. These securities bear the risk of loan prepayment or default that may result in the Company not recovering all or a portion of its recorded investment. When appropriate, valuations are adjusted for various factors including default or prepayment status of the underlying SBA loans. Because of the inherent uncertainty of valuation, those estimated values may be higher or lower than the values that would have been used had a ready market for the securities existed, and may change in the near term. Loans held-for-sale. Residential real estate loans held-for-sale are valued using current transaction prices and/or val

Restructuring, Repositioning, a

Restructuring, Repositioning, and Efficiency	9 Months Ended
	Sep. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring, Repositioning, and Efficiency	Restructuring, Repositioning, and Efficiency In first quarter 2019, FHN initiated a company-wide review of business practices with the goal of optimizing its expense base to improve profitability and create capacity to reinvest savings into technology and revenue production activities. Restructuring, repositioning, and efficiency charges related to these corporate-driven actions were $38.7 million in the nine months ended September 30, 2019 and are included in the corporate segment. Significant expenses recognized during the nine months ended September 30, 2019 resulted from the following actions: • Severance and other employee costs of $10.2 million primarily related to efficiency initiatives within corporate and bank services functions which are classified as Employee compensation, incentives and benefits within noninterest expense. • Expense of $15.0 million largely related to the identification of efficiency opportunities within the organization which is reflected in Professional fees. • Expense of $12.2 million related to costs associated with asset impairments which is reflected in Other expense. Settlement of the obligations arising from current initiatives will be funded from operating cash flows. Total expense recognized for the three and nine months ended September 30, 2019 is presented in the table below: Dollars in thousands Three Months Ended Nine Months Ended Employee compensation, incentives and benefits $ 1,182 $ 10,244 Professional fees 6,488 15,025 Occupancy (128 ) 761 Other 300 12,632 Total restructuring and repositioning charges $ 7,842 $ 38,662

Financial Information (Policies

Financial Information (Policies)	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Accounting	Basis of Accounting. The unaudited interim consolidated condensed financial statements of First Horizon National Corporation (“FHN”), including its subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America and follow general practices within the industries in which it operates. This preparation requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates and assumptions are based on information available as of the date of the financial statements and could differ from actual results. In the opinion of management, all necessary adjustments have been made for a fair presentation of financial position and results of operations for the periods presented. These adjustments are of a normal recurring nature unless otherwise disclosed in this Quarterly Report on Form 10-Q. The operating results for the interim 2019 period are not necessarily indicative of the results that may be expected going forward. For further information, refer to the audited consolidated financial statements in Exhibit 13 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2018.
Revenues, Contract Balances, Transaction Price Allocated to Remaining Performance Obligation	Revenues. Revenue is recognized when the performance obligations under the terms of a contract with a customer are satisfied in an amount that reflects the consideration FHN expects to be entitled. FHN derives a significant portion of its revenues from fee-based services. Noninterest income from transaction-based fees is generally recognized immediately upon completion of the transaction. Noninterest income from service-based fees is generally recognized over the period in which FHN provides the service. Any services performed over time generally require that FHN render services each period and therefore FHN measures progress in completing these services based upon the passage of time and recognizes revenue as invoiced. See Note 1– Summary of Significant Accounting Policies in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2018, for a discussion of FHN's key revenues. Contract Balances. As of September 30, 2019, accounts receivable related to products and services on non-interest income were $8.6 million . For the three and nine months ended September 30, 2019, FHN had no material impairment losses on non-interest accounts receivable and there were no material contract assets, contract liabilities or deferred contract costs recorded on the Consolidated Condensed Statements of Condition as of September 30, 2019. Transaction Price Allocated to Remaining Performance Obligations. For the three and nine months ended September 30, 2019, revenue recognized from performance obligations related to prior periods was not material. Revenue expected to be recognized in any future year related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less and contracts where revenue is recognized as invoiced, is not material.
Lessee	Lessee. As a lessee, FHN recognizes lease (right-of-use) assets and lease liabilities for all leasing arrangements with lease terms that are greater than one year. The lease asset and lease liability are recognized at the present value of estimated future lease payments, including estimated renewal periods, with the discount rate reflecting a fully-collateralized rate matching the estimated lease term. Renewal options are included in the estimated lease term if they are considered reasonably certain of exercise. Periods covered by termination options are included in the lease term if it is reasonably certain they will not be exercised. Additionally, prepaid or accrued lease payments, lease incentives and initial direct costs related to lease arrangements are recognized within the right-of-use asset. Each lease is classified as a financing or operating lease which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. Substantially all of FHN’s lessee arrangements are classified as operating leases. For leases with a term of 12 months or less, FHN does not to recognize lease assets and lease liabilities and expense is generally recognized on a straight-line basis over the lease term. Lease assumptions and classification are reassessed upon the occurrence of events that result in changes to the estimated lease term or consideration. Modifications to lease contracts are evaluated to determine 1) if a right to use an additional asset has been obtained, 2) if only the lease term and/or consideration have been revised or 3) if a full or partial termination has occurred. If an additional right-of use-asset has been obtained, the modification is treated as a separate contract and its classification is evaluated as a new lease arrangement. If only the lease term or consideration are changed, the lease liability is revalued with an offset to the lease asset and the lease classification is re-assessed. If a modification results in a full or partial termination of the lease, the lease liability is revalued through earnings along with a proportionate reduction in the value of the related lease asset and subsequent expense recognition is similar to a new lease arrangement. Lease assets are evaluated for impairment when triggering events occur, such as a change in management intent regarding the continued occupation of the leased space. If a lease asset is impaired, it is written down to the present value of estimated future cash flows and the prospective expense recognition for that lease follows the accelerated expense recognition methodology applicable to finance leases, even if it remains classified as an operating lease. Sublease arrangements are accounted for consistent with the lessor accounting described below. Sublease arrangements are evaluated to determine if changes to estimates for the primary lease are warranted or if the sublease terms reflect impairment of the related lease asset.
Lessor	Leases. At inception, all arrangements are evaluated to determine if they contain a lease, which is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. Control is deemed to exist when a lessor has granted and a lessee has received both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset throughout the period of use. Lessor. As a lessor, FHN also evaluates its lease arrangements to determine whether a finance lease or an operating lease exists and utilizes the rate implicit in the lease arrangement as the discount rate to calculate the present value of future cash flows. Depending upon the terms of the individual agreements, finance leases represent either sales-type or direct financing leases, both of which require de-recognition of the asset being leased with offsetting recognition of a lease receivable that is evaluated for impairment similar to loans. Currently, all of FHN’s lessor arrangements are considered operating leases. Lease income for operating leases is recognized over the life of the lease, generally on a straight line basis. Lease incentives and initial direct costs are capitalized and amortized over the estimated life of the lease. Lease income is not significant for any reporting periods and is classified as a reduction of Occupancy expense in the Consolidated Condensed Statements of Income.
Summary of Accounting Changes and Accounting Changes Issued But Not Currently Effective	Summary of Accounting Changes. In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires a lessee to recognize in its statement of condition a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. ASU 2016-02 leaves lessor accounting largely unchanged from prior standards. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. All other leases must be classified as financing or operating leases which depends on the relationship of the lessee’s rights to the economic value of the leased asset. For finance leases, interest on the lease liability is recognized separately from amortization of the right-of-use asset in earnings, resulting in higher expense in the earlier portion of the lease term. For operating leases, a single lease cost is calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis. In July 2018, the FASB issued ASU 2018-11, “Leases - Targeted Improvements,” which provides an election for a cumulative effect adjustment to retained earnings upon initial adoption of ASU 2016-02. Alternatively, under the initial guidance of ASU 2016-02, lessees and lessors are required to recognize and measure leases at the beginning of the earliest comparative period presented using a modified retrospective approach. Both adoption alternatives include a number of optional practical expedients that entities may elect to apply, which would result in continuing to account for leases that commence before the effective date in accordance with previous requirements (unless the lease is modified) except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous requirements. ASU 2016-02 also requires expanded qualitative and quantitative disclosures to assess the amount, timing, and uncertainty of cash flows arising from lease arrangements. ASU 2016-02 and ASU 2018-11 are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Upon adoption, FHN utilized the cumulative effect transition alternative provided by ASU 2018-11. FHN utilized the lease classification practical expedients and the short-term lease exemption upon adoption. FHN also has elected to determine the discount rate on leases as of the effective date and elected to use hindsight in determining lease terms as well as impairments of lease assets resulting from lease abandonments upon adoption. The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011 In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). Capitalized implemented costs are required to be expensed over the term of the hosting arrangement which includes the non-cancellable period of the arrangement plus periods covered by (1) an option to extend the arrangement if the customer is reasonably certain to exercise that option, (2) an option to terminate the arrangement if the customer is reasonably certain not to exercise the termination option, and (3) an option to extend (or not to terminate) the arrangement in which exercise of the option is in the control of the vendor. ASU 2018-15 also requires application of the impairment guidance applicable to long-lived assets to the capitalized implementation costs. Amortization expense related to capitalized implementation costs must be presented in the same line item in the statement of income as the fees associated with the hosting element (service) of the arrangement and payments for capitalized implementation costs will be classified in the statement of cash flows in the same manner as payments made for fees associated with the hosting element. Capitalized implementation costs will be presented in the statement of financial position in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019 with early adoption permitted. Adoption may be either fully retrospective or prospective only. FHN elected early adoption of ASU 2018-15 effective January 1, 2019 using the prospective transition method and the effects of adoption were not significant. In April 2019, the FASB issued ASU 2019-04, “Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” which makes several revisions and clarifications to the accounting for these items. The revisions related to ASU 2016-03 (Topic 326) are discussed below. ASU 2019-04 clarifies several aspects of fair hedge accounting, including the application to partial term fair value hedges. ASU 2019-04 provides an election regarding the timing for amortization of basis adjustments to hedged items in fair value hedges, indicating that amortization may, but is not required to, commence prior to the end of the hedge relationship. ASU 2019-04 also provides additional guidance related to the application of the hypothetical derivative method and first-payments-received method in cash flow hedges. Further, ASU 2019-04 indicates that remeasurement of an equity security without a readily determinable fair value when an orderly transaction is identified for an identical or similar investment of the same issuer represents a non-recurring fair value measurement and the related disclosure requirements apply to the remeasurement event. The hedging updates are effective at the beginning of the first annual reporting period after issuance with early adoption permitted. The financial instruments measurement and disclosure changes are effective for fiscal years and interim periods beginning after December 15, 2019 with early adoption permitted. FHN early adopted these portions of ASU 2019-04 in second quarter 2019 and the effects were not significant based on its existing accounting practices. Accounting Changes Issued but Not Currently Effective In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments,” which revises the measurement and recognition of credit losses for assets measured at amortized cost (e.g., held-to-maturity (“HTM”) loans and debt securities) and available-for-sale (“AFS”) debt securities. Under ASU 2016-13, for assets measured at amortized cost, the current expected credit loss (“CECL”) is measured as the difference between amortized cost and the net amount expected to be collected. This represents a departure from existing GAAP as the “incurred loss” methodology for recognizing credit losses delays recognition until it is probable a loss has been incurred. Under CECL the full amount of expected credit losses will be recognized at the time of loan origination. The measurement of current expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Additionally, current disclosures of credit quality indicators in relation to the amortized cost of financing receivables will be further disaggregated by year of origination. ASU 2016-13 leaves the methodology for measuring credit losses on AFS debt securities largely unchanged, with the maximum credit loss representing the difference between amortized cost and fair value. However, such credit losses will be recognized through an allowance for credit losses, which permits recovery of previously recognized credit losses if circumstances change. ASU 2016-13 also revises the recognition of credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”). For PCD assets, the initial allowance for credit losses is added to the purchase price. Only subsequent changes in the allowance for credit losses are recorded as a credit loss expense for PCD assets. Interest income for PCD assets will be recognized based on the effective interest rate, excluding the discount embedded in the purchase price that is attributable to the acquirer’s assessment of credit losses at acquisition. Currently, credit losses for purchased credit-impaired assets are included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit are reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses will be recognized through earnings upon acquisition and the entire premium or discount will be accreted to interest income over the remaining life of the loan. The provisions of ASU 2016-13 will be generally adopted through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in the year of adoption. Prospective implementation is required for debt securities for which an other-than-temporary-impairment (“OTTI”) had been previously recognized. Amounts previously recognized in accumulated other comprehensive income (“AOCI”) as of the date of adoption that relate to improvements in cash flows expected to be collected will continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption will be recorded in earnings when received. A prospective transition approach will be used for existing PCD assets where, upon adoption, the amortized cost basis will be adjusted to reflect the addition of the allowance for credit losses. Thus, an entity will not be required to reassess its purchased financial assets that exist as of the date of adoption to determine whether they would have met at acquisition the new criteria of more-than-insignificant credit deterioration since origination. An entity will accrete the remaining noncredit discount (based on the revised amortized cost basis) into interest income at the effective interest rate at the adoption date. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. FHN continues to evaluate the impact of ASU 2016-13, and is not currently able to reasonably estimate the impact the adoption will have on its consolidated financial position, results of operations, or cash flows. Adoption of ASU 2016-13 is likely to lead to significant changes in accounting policies and procedures related to FHN’s ALLL, and it is possible that the impact of the adoption could be material to FHN’s consolidated financial position and results of operations. To date, the Company has, completed model development activities, is finalizing model and accounting policy documentation including portfolio segmentation and measurement methodologies, is finalizing the implementation of the model platform, and assessing impacts to operational processes and internal controls. FHN intends to perform parallel calculations and analysis in fourth quarter 2019. At this time, FHN has performed estimations of the day 1 impact for internal use only as we continue to finalize all aspects of the CECL implementation. FHN has assessed several asset classes that are within the scope of CECL and determined that the adoption effects for the change in measurement of credit risk will be minimal for these classes. This includes Fed funds sold which have no history of credit losses due to their short (typically overnight) duration and counterparty risk assessment processes. This also includes securities borrowed and securities purchased under agreements to resell which have collateral maintenance agreements that incorporate master netting provisions resulting in minimal uncollateralized positions as of any date as evidenced by the disclosures provided in Note 16 - Master Netting and Similar Agreements-Repurchase, Reverse Repurchase, and Securities Borrowing Transactions. Additionally, FHN has also evaluated the composition of its AFS securities and determined that the changes in ASU 2016-13 will not have a significant effect on the current portfolio. ASU 2019-04 provides an election to either not measure or measure separately an allowance for credit losses for accrued interest receivable (“AIR"). Entities electing to not measure an allowance for AIR must write off uncollectible interest in a timely manner. Additionally, an election is provided for the write off of uncollectible interest to be recorded either as a reversal of interest income or a charge against the allowance for credit losses or a combination of both. Disclosures are required depending upon which elections are made. ASU 2019-04 also clarifies that when loans and securities are transferred between balance sheet categories (e.g., loans from held-for-investment to held-for-sale or securities from held-to-maturity to available-for-sale) the associated allowance for credit losses should be reversed to income and prospective accounting follows the requirements for the new classification. Further, ASU 2019-04 clarifies that recoveries should be incorporated within the estimation of the allowance for credit losses. Expected recoveries should not exceed the aggregate amount of prior write offs and expected future write offs. The inclusion of expected recoveries in the measurement of expected credit losses may result in a negative credit allowance in certain circumstances. Additionally, for collateral dependent financial assets, the allowance for credit losses that is added to the amortized cost basis should not exceed amounts previously written off. ASU 2019-04 also makes several changes when a discounted cash flow approach is used to measure expected credit losses. ASU 2019-04 removes ASU 2016-03’s prohibition of using projections of future interest rate environments when using a discounted cash flow method to measure expected credit losses on variable-rate financial instruments. If an entity uses projections or expectations of future interest rate environments in estimating expected cash flows, the same assumptions should be used in determining the effective interest rate used to discount those expected cash flows. The effective interest rate should also be adjusted to consider the effects of expected prepayments on the timing of expected future cash flows. ASU 2019-04 provides an election to adjust the effective interest rate used in discounting expected cash flows to isolate credit risk in measuring the allowance for credit losses. Further, the discount rate should not be adjusted for subsequent changes in expected prepayments if a financial asset is restructured in a troubled debt restructuring. Related to collateral-dependent financial assets, ASU 2019-04 requires inclusion of estimated costs to sell in the measurement of expected credit losses in situations where the entity intends to sell rather than operate the collateral. Additionally, the estimated costs to sell should be undiscounted when the entity intends to sell rather than operate the collateral. Finally, ASU 2019-04 specifies that contractual renewal or extension options, except those treated as derivatives, should be included in the determination of the contractual term for a financial asset when included in the original or modified contract as of the reporting date if they are not unconditionally cancellable by the entity. The effective date and transition requirements for these components of ASU 2019-04 are consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts. Based on its current practices for the timely write off uncollectible AIR, FHN intends to not measure an allowance for credit losses for AIR and to continue recognition of related write offs as a reversal of interest income. In May 2019, the FASB issued ASU 2019-05, “Financial Instruments - Credit Losses, Targeted Transition Relief,” which provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis that are in the scope of ASU 2016-13, applied on an instrument-by-instrument basis. The fair value option election does not apply to held-to-maturity debt securities. The effective date and transition requirements for ASU 2019-05 are consistent with the requirements for ASU 2016-13. FHN is evaluating the accounting and disclosure requirements for applying the fair value option in comparison to the requirements for applying CECL for certain in-scope asset classes other than loans. In September 2019, the FASB approved an ASU for issuance (the “Proposed ASU”), “Codification Improvements to Topic 326, Financial Instruments-Credit Losses” which clarifies that expected recoveries should be included in the amortized cost basis previously written off or expected to be written off in the valuation allowance for PCD assets. The Proposed ASU also clarifies that recoveries or expected recoveries of the unamortized noncredit discount or premium should not be included in the allowance for credit losses. The Proposed ASU provides specific transition relief for exiting troubled debt restructurings and extends the disclosure relief of ASU 2019-04 for accrued interest receivable balances to additional relevant disclosures involving amortized cost basis. Related to the assessment of credit risk for collateralized assets, the Proposed ASU indicates that an entity should assess whether it reasonably expects the borrower will be able to continually replenish collateral securing the financial asset to apply the practical expedient of ASU 2016-13 while also requiring an estimation of expected credit losses for any difference between the amount of the amortized cost basis that is greater than the fair value of the collateral securing the financial asset. The effective date and transition requirements for The Proposed ASU will be consistent with the requirements for ASU 2016-13 and FHN is incorporating these changes and revisions within its implementation efforts and the effects will be embedded within the adoption effects of ASU 2016-13. Consistent with non-PCD assets, the effect of including recoveries and expected recoveries within the measurement of expected credit losses for PCD assets may result in a negative credit allowance in certain circumstances.

Financial Information (Tables)

Financial Information (Tables)	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Impact of Adoption of ASU 2016-02	The table below summarizes the impact of adopting ASU 2016-02 as of January 1, 2019, for line items in the Consolidated Condensed Statements of Condition. Lease assets of approximately $185 million are included in Other Assets. Lease liabilities of approximately $204 million are included in Other Liabilities. The after-tax decrease in Undivided Profits reflects the recognition of deferred gains associated with prior sale-leaseback transactions, revisions to the estimated useful lives of leasehold improvements and adjustments of lease expense to reflect revised lease duration estimates. (Dollars in thousands) January 1, 2019 Loans, net of unearned income $ 3,450 Premises and equipment, net 2,718 Other assets 183,884 Other liabilities (191,010 ) Undivided profits 1,011

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Merger And Integration Expense	Total merger and integration expense recognized for the three and nine months ended September 30, 2019 and 2018 are presented in the table below: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Professional fees (a) $ 3,507 $ 4,593 $ 9,852 $ 19,217 Employee compensation, incentives and benefits (b) 1,473 3,112 4,462 12,198 Contract employment and outsourcing (c) 223 599 240 3,701 Occupancy (d) (76 ) 115 1,547 2,374 Miscellaneous expense (e) 1,022 1,381 2,170 6,514 All other expense (f) 2,840 1,549 5,025 41,835 Total $ 8,989 $ 11,349 $ 23,296 $ 85,839 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily relates to fees for temporary assistance for merger and integration activities. (d) Primarily relates to expenses associated with lease exits. (e) Consists of fees for operations services, communications and courier, equipment rentals, depreciation, and maintenance, supplies, travel and entertainment, computer software, and advertising and public relations. (f) Primarily relates to contract termination charges, lease buyouts, costs of shareholder matters and asset impairments related to the integration, as well as other miscellaneous expenses.

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2019
Marketable Securities [Abstract]
Schedule of FHN's Investment Securities	The following tables summarize FHN’s investment securities on September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ — $ 100 Government agency issued mortgage-backed securities (“MBS”) 2,249,973 37,204 (2,745 ) 2,284,432 Government agency issued collateralized mortgage obligations (“CMO”) 1,775,941 13,978 (5,699 ) 1,784,220 Other U.S. government agencies 237,414 3,919 — 241,333 Corporates and other debt 40,105 425 (90 ) 40,440 States and municipalities 46,658 3,435 (22 ) 50,071 $ 4,350,191 $ 58,961 $ (8,556 ) 4,400,596 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 15,249 Total securities available-for-sale (b) $ 4,415,845 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (13 ) $ 9,987 Total securities held-to-maturity $ 10,000 $ — $ (13 ) $ 9,987 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value for additional information. (b) Includes $3.7 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 2018 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 100 $ — $ (2 ) $ 98 Government agency issued MBS 2,473,687 4,819 (58,400 ) 2,420,106 Government agency issued CMO 2,006,488 888 (48,681 ) 1,958,695 Other U.S. government agencies 149,050 809 (73 ) 149,786 Corporates and other debt 55,383 388 (461 ) 55,310 State and municipalities 32,473 314 (214 ) 32,573 $ 4,717,181 $ 7,218 $ (107,831 ) 4,616,568 AFS securities recorded at fair value through earnings: SBA-interest only strips (a) 9,902 Total securities available-for-sale (b) $ 4,626,470 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (157 ) $ 9,843 Total securities held-to-maturity $ 10,000 $ — $ (157 ) $ 9,843 (a) SBA-interest only strips are recorded at elected fair value. See Note 17 - Fair Value of Assets and Liabilities for additional information. (b) Includes $3.8 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes.
Schedule of Amortized Cost And Fair Value By Contractual Maturity	The amortized cost and fair value by contractual maturity for the available-for-sale and held-to-maturity debt securities portfolios on September 30, 2019 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 20,161 $ 20,289 After 1 year; within 5 years — — 223,908 228,037 After 5 years; within 10 years 10,000 9,987 755 2,444 After 10 years — — 79,453 96,423 Subtotal 10,000 9,987 324,277 347,193 Government agency issued MBS and CMO (a) — — 4,025,914 4,068,652 Total $ 10,000 $ 9,987 $ 4,350,191 $ 4,415,845 (a) Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
Schedule of Gross Gains And Losses On Sale From Available For Sale Portfolio	The table below provides information on gross gains and gross losses from debt investment securities for the three and nine months ended September 30 , 2019 and 2018. Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Gross gains on sales of securities $ — $ — $ — $ 52 Gross (losses) on sales of securities — — (267 ) — Net gain/(loss) on sales of securities (a) $ — $ — $ (267 ) $ 52 (a) Cash proceeds for the three months ended September 30, 2019 were not material. Cash proceeds for the nine months ended September 30, 2019 were $182.8 million . Cash proceeds for the three and nine months ended September 30, 2018 were not material.
Schedule of Investments Within The Available For Sale Portfolio That Had Unrealized Losses	The following tables provide information on investments within the available-for-sale portfolio that had unrealized losses as of September 30, 2019 and December 31, 2018 : As of September 30, 2019 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 100 $ — $ 100 $ — Government agency issued MBS 78,633 (222 ) 219,235 (2,523 ) 297,868 (2,745 ) Government agency issued CMO 234,437 (681 ) 397,826 (5,018 ) 632,263 (5,699 ) Corporates and other debt — — 25,160 (90 ) 25,160 (90 ) States and municipalities 1,468 (22 ) — — 1,468 (22 ) Total temporarily impaired securities $ 314,538 $ (925 ) $ 642,321 $ (7,631 ) $ 956,859 $ (8,556 ) As of December 31, 2018 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasuries $ — $ — $ 98 $ (2 ) $ 98 $ (2 ) Government agency issued MBS 597,008 (12,335 ) 1,537,106 (46,065 ) 2,134,114 (58,400 ) Government agency issued CMO 290,863 (2,860 ) 1,560,420 (45,821 ) 1,851,283 (48,681 ) Other U.S. government agencies 29,776 (73 ) — — 29,776 (73 ) Corporates and other debt 25,114 (344 ) 15,008 (117 ) 40,122 (461 ) States and municipalities 17,292 (214 ) — — 17,292 (214 ) Total temporarily impaired securities $ 960,053 $ (15,826 ) $ 3,112,632 $ (92,005 ) $ 4,072,685 $ (107,831 )

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Schedule Of Loans By Portfolio Segment	The following table provides the balance of loans, net of unearned income, by portfolio segment as of September 30, 2019 and December 31, 2018 : September 30 December 31 (Dollars in thousands) 2019 2018 Commercial (a): Commercial, financial, and industrial $ 20,293,930 $ 16,514,328 Commercial real estate 4,228,598 4,030,870 Consumer: Consumer real estate (b) 6,062,829 6,249,516 Permanent mortgage 182,467 222,448 Credit card & other 493,009 518,370 Loans, net of unearned income $ 31,260,833 $ 27,535,532 Allowance for loan losses 193,149 180,424 Total net loans $ 31,067,684 $ 27,355,108 (a) In third quarter 2019, FHN corrected a previous mis-classification of commercial loans and reclassified approximately $410 million of market investor CRE loans from the C&I portfolio to the CRE portfolio. These loans were identified during an internal review and assessment by management of certain loan populations, a portion of which relate to loans acquired as part of the Capital Bank merger. The reclassification of these loan balances between regional banking portfolios did not have an impact on FHN’s consolidated period-end or average balance sheet and had an immaterial effect on the allowance for loan losses. No adjustments were made to prior periods as the impact of the reclassification, including the effect on the allowance for loan losses was deemed to be immaterial in all periods. (b) Balances as of September 30, 2019 and December 31, 2018 , include $12.4 million and $16.2 million of restricted real estate loans, respectively. See Note 14—Variable Interest Entities for additional information.
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward	The following table presents a rollforward of the accretable yield for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Balance, beginning of period $ 11,600 $ 14,474 $ 13,375 $ 15,623 Accretion (1,440 ) (2,183 ) (4,586 ) (6,927 ) Adjustment for payoffs (369 ) (840 ) (1,084 ) (2,559 ) Adjustment for charge-offs (59 ) (122 ) (314 ) (1,046 ) Adjustment for pool excess recovery — (123 ) — (123 ) Increase/(decrease) in accretable yield (a) 2,416 4,062 5,080 10,721 Disposal (4 ) — (4 ) (240 ) Other (35 ) — (358 ) (181 ) Balance, end of period $ 12,109 $ 15,268 $ 12,109 $ 15,268 (a) Includes changes in the accretable yield due to both transfers from the nonaccretable difference and the impact of changes in the expected timing and amounts of the cash flows.
Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment	The following table reflects the outstanding principal balance and carrying amounts of the acquired PCI loans as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 (Dollars in thousands) Carrying value Unpaid balance Carrying value Unpaid balance Commercial, financial and industrial $ 28,777 $ 30,478 $ 38,873 $ 44,259 Commercial real estate 6,596 7,268 15,197 17,232 Consumer real estate 25,514 28,591 30,723 34,820 Credit card and other 637 790 1,627 1,879 Total $ 61,524 $ 67,127 $ 86,420 $ 98,190
Information By Class Related To Individually Impaired Loans	The following tables provide information at September 30, 2019 and December 31, 2018 , by class related to individually impaired loans and consumer TDRs, regardless of accrual status. Recorded investment is defined as the amount of the investment in a loan, excluding any valuation allowance but including any direct write-down of the investment. For purposes of this disclosure, PCI loans and the TRUPS valuation allowance have been excluded. September 30, 2019 December 31, 2018 (Dollars in thousands) Recorded Unpaid Related Recorded Unpaid Related Impaired loans with no related allowance recorded: Commercial: General C&I $ 63,070 $ 78,914 $ — $ 42,902 $ 45,387 $ — Income CRE 1,940 1,940 — 1,589 1,589 — Total $ 65,010 $ 80,854 $ — $ 44,491 $ 46,976 $ — Consumer: HELOC (a) $ 6,614 $ 12,579 $ — $ 8,645 $ 16,648 $ — R/E installment loans (a) 5,042 5,853 — 4,314 4,796 — Permanent mortgage (a) 2,791 4,619 — 3,601 6,003 — Total $ 14,447 $ 23,051 $ — $ 16,560 $ 27,447 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 19,508 $ 23,728 $ 4,287 $ 2,802 $ 2,802 $ 149 TRUPS 2,725 3,700 140 2,888 3,700 925 Income CRE — — — 377 377 — Total $ 22,233 $ 27,428 $ 4,427 $ 6,067 $ 6,879 $ 1,074 Consumer: HELOC $ 58,924 $ 62,514 $ 7,457 $ 66,482 $ 69,610 $ 11,241 R/E installment loans 37,735 38,714 4,901 38,993 39,851 6,743 Permanent mortgage 61,511 71,406 8,363 67,245 78,010 9,419 Credit card & other 720 720 450 695 695 337 Total $ 158,890 $ 173,354 $ 21,171 $ 173,415 $ 188,166 $ 27,740 Total commercial $ 87,243 $ 108,282 $ 4,427 $ 50,558 $ 53,855 $ 1,074 Total consumer $ 173,337 $ 196,405 $ 21,171 $ 189,975 $ 215,613 $ 27,740 Total impaired loans $ 260,580 $ 304,687 $ 25,598 $ 240,533 $ 269,468 $ 28,814 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 (Dollars in thousands) Average Interest Average Interest Average Interest Average Interest Impaired loans with no related allowance recorded: Commercial: General C&I $ 64,558 $ 173 $ 23,740 $ 203 $ 62,553 $ 530 $ 21,506 $ 561 Loans to mortgage companies 18,628 — — — 12,419 — — — Income CRE 1,690 3 1,680 12 1,576 30 1,379 37 Residential CRE — — 500 — — — 416 — Total $ 84,876 $ 176 $ 25,920 $ 215 $ 76,548 $ 560 $ 23,301 $ 598 Consumer: HELOC (a) $ 6,495 $ — $ 8,343 $ — $ 6,852 $ — $ 8,878 $ — R/E installment loans (a) 5,304 — 4,631 — 5,384 — 4,032 — Permanent mortgage (a) 2,843 — 3,949 — 3,180 — 4,638 — Total $ 14,642 $ — $ 16,923 $ — $ 15,416 $ — $ 17,548 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 14,620 $ 4 $ 16,375 $ — $ 10,892 $ 4 $ 16,038 $ — TRUPS 2,750 — 2,960 — 2,806 — 3,004 — Income CRE 169 — 199 5 294 9 335 5 Residential CRE — — — — — — 133 — Total $ 17,539 $ 4 $ 19,534 $ 5 $ 13,992 $ 13 $ 19,510 $ 5 Consumer: HELOC $ 60,312 $ 449 $ 68,913 $ 556 $ 62,650 $ 1,475 $ 70,452 $ 1,711 R/E installment loans 39,924 250 39,147 246 41,475 792 40,512 764 Permanent mortgage 62,652 537 71,898 585 64,700 1,632 74,617 1,737 Credit card & other 710 4 578 3 697 13 626 9 Total $ 163,598 $ 1,240 $ 180,536 $ 1,390 $ 169,522 $ 3,912 $ 186,207 $ 4,221 Total commercial $ 102,415 $ 180 $ 45,454 $ 220 $ 90,540 $ 573 $ 42,811 $ 603 Total consumer $ 178,240 $ 1,240 $ 197,459 $ 1,390 $ 184,938 $ 3,912 $ 203,755 $ 4,221 Total impaired loans $ 280,655 $ 1,420 $ 242,913 $ 1,610 $ 275,478 $ 4,485 $ 246,566 $ 4,824 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.
Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade	The following tables provide the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 651,636 $ — $ — $ 2,394 $ — $ 654,030 3 % $ 68 2 798,897 — — 49,116 44 848,057 3 197 3 654,023 1,127,283 3,314 407,538 1,144 2,193,302 9 283 4 1,219,024 859,310 35,786 550,707 512 2,665,339 11 813 5 2,004,530 683,685 80,765 1,026,006 10,338 3,805,324 16 9,398 6 2,349,020 1,515,178 33,815 741,795 21,484 4,661,292 19 12,139 7 2,835,023 505,068 11,446 651,383 34,688 4,037,608 17 20,443 8 1,536,468 210,719 — 249,301 22,253 2,018,741 8 20,488 9 992,076 123,013 26,123 158,079 14,759 1,314,050 5 15,027 10 626,518 7,439 18,536 56,241 3,236 711,970 3 9,732 11 469,096 — — 62,676 2,489 534,261 2 11,114 12 267,147 5,856 — 40,484 1,386 314,873 1 9,233 13 294,924 — 5,786 76,879 1,309 378,898 2 11,906 14,15,16 227,322 — — 33,432 512 261,266 1 23,586 Collectively evaluated for impairment 14,925,704 5,037,551 215,571 4,106,031 114,154 24,399,011 100 144,427 Individually evaluated for impairment 82,578 — 2,725 1,940 — 87,243 — 4,427 Purchased credit-impaired loans 29,801 — — 5,082 1,391 36,274 — 901 Total commercial loans $ 15,038,083 $ 5,037,551 $ 218,296 $ 4,113,053 $ 115,545 $ 24,522,528 100 % $ 149,755 December 31, 2018 (Dollars in thousands) General C&I Loans to Mortgage Companies TRUPS (a) Income CRE Residential CRE Total Percentage of Total Allowance for Loan Losses PD Grade: 1 $ 610,177 $ — $ — $ 12,586 $ — $ 622,763 3 % $ 100 2 835,776 — — 1,688 29 837,493 4 274 3 782,362 716,971 — 289,594 147 1,789,074 9 315 4 1,223,092 394,862 43,220 563,243 — 2,224,417 11 686 5 1,920,034 277,814 77,751 798,509 14,150 3,088,258 15 8,919 6 1,722,136 365,341 45,609 657,628 33,759 2,824,473 14 8,141 7 2,690,784 96,603 11,446 538,909 26,135 3,363,877 16 16,906 8 1,337,113 53,224 — 265,901 20,320 1,676,558 8 18,545 9 1,472,852 96,292 45,117 455,184 29,849 2,099,294 10 15,454 10 490,795 13,260 18,536 60,803 3,911 587,305 3 8,675 11 311,967 — — 66,986 788 379,741 2 7,973 12 244,867 9,379 — 82,574 5,717 342,537 2 6,972 13 285,987 — 5,786 55,408 251 347,432 2 10,094 14,15,16 224,853 — — 28,835 837 254,525 1 23,307 Collectively evaluated for impairment 14,152,795 2,023,746 247,465 3,877,848 135,893 20,437,747 100 126,361 Individually evaluated for impairment 45,704 — 2,888 1,966 — 50,558 — 1,074 Purchased credit-impaired loans 41,730 — — 12,730 2,433 56,893 — 2,823 Total commercial loans $ 14,240,229 $ 2,023,746 $ 250,353 $ 3,892,544 $ 138,326 $ 20,545,198 100 % $ 130,258 (a) Balances presented net of a $19.1 million valuation allowance as of September 30, 2019 , and a $20.2 million valuation allowance as of December 31, 2018 .
Loans by FICO Score, Consumer	The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC, real estate installment, and permanent mortgage classes of loans as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 HELOC R/E Installment Loans Permanent Mortgage HELOC R/E Installment Loans Permanent Mortgage FICO score 740 or greater 61.9 % 72.9 % 47.9 % 61.4 % 71.3 % 51.8 % FICO score 720-739 8.8 8.1 7.9 8.5 8.8 7.6 FICO score 700-719 7.3 6.2 11.0 7.6 7.0 10.6 FICO score 660-699 10.5 7.4 16.7 10.9 7.6 14.7 FICO score 620-659 5.1 2.9 8.2 5.1 2.8 6.5 FICO score less than 620 (a) 6.4 2.5 8.3 6.5 2.5 8.8 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % (a) For this group, a majority of the loan balances had FICO scores at the time of the origination that exceeded 620 but have since deteriorated as the loans have seasoned.
Accruing And Non-Accruing Loans By Class	The following table reflects accruing and non-accruing loans by class on September 30, 2019 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,914,990 $ 18,979 $ 334 $ 14,934,303 $ 43,877 $ 960 $ 29,142 $ 73,979 $ 15,008,282 Loans to mortgage companies 5,037,551 — — 5,037,551 — — — — 5,037,551 TRUPS (a) 215,571 — — 215,571 — — 2,725 2,725 218,296 Purchased credit-impaired loans 27,169 773 1,859 29,801 — — — — 29,801 Total commercial (C&I) 20,195,281 19,752 2,193 20,217,226 43,877 960 31,867 76,704 20,293,930 Commercial real estate: Income CRE 4,104,826 1,208 — 4,106,034 — — 1,937 1,937 4,107,971 Residential CRE 114,154 — — 114,154 — — — — 114,154 Purchased credit-impaired loans 6,082 349 42 6,473 — — — — 6,473 Total commercial real estate 4,225,062 1,557 42 4,226,661 — — 1,937 1,937 4,228,598 Consumer real estate: HELOC 1,267,603 9,694 6,673 1,283,970 45,456 6,601 7,767 59,824 1,343,794 R/E installment loans 4,659,224 8,032 5,648 4,672,904 13,068 2,420 3,911 19,399 4,692,303 Purchased credit-impaired loans 21,245 1,938 3,549 26,732 — — — — 26,732 Total consumer real estate 5,948,072 19,664 15,870 5,983,606 58,524 9,021 11,678 79,223 6,062,829 Permanent mortgage 161,198 5,338 1,644 168,180 8,401 373 5,513 14,287 182,467 Credit card & other: Credit card 200,696 1,264 1,127 203,087 — — — — 203,087 Other 286,983 1,728 183 288,894 72 76 196 344 289,238 Purchased credit-impaired loans 371 260 53 684 — — — — 684 Total credit card & other 488,050 3,252 1,363 492,665 72 76 196 344 493,009 Total loans, net of unearned income $ 31,017,663 $ 49,563 $ 21,112 $ 31,088,338 $ 110,874 $ 10,430 $ 51,191 $ 172,495 $ 31,260,833 (a) TRUPS is presented net of the valuation allowance of $19.1 million . The following table reflects accruing and non-accruing loans by class on December 31, 2018 : Accruing Non-Accruing (Dollars in thousands) Current 30-89 Days Past Due 90+ Days Past Due Total Accruing Current 30-89 Days Past Due 90+ Days Past Due Total Non- Accruing Total Loans Commercial (C&I): General C&I $ 14,153,275 $ 8,234 $ 102 $ 14,161,611 $ 26,325 $ 5,537 $ 5,026 $ 36,888 $ 14,198,499 Loans to mortgage companies 2,023,746 — — 2,023,746 — — — — 2,023,746 TRUPS (a) 247,465 — — 247,465 — — 2,888 2,888 250,353 Purchased credit-impaired loans 39,433 624 1,673 41,730 — — — — 41,730 Total commercial (C&I) 16,463,919 8,858 1,775 16,474,552 26,325 5,537 7,914 39,776 16,514,328 Commercial real estate: Income CRE 3,876,229 626 — 3,876,855 30 — 2,929 2,959 3,879,814 Residential CRE 135,861 — — 135,861 32 — — 32 135,893 Purchased credit-impaired loans 13,308 103 1,752 15,163 — — — — 15,163 Total commercial real estate 4,025,398 729 1,752 4,027,879 62 — 2,929 2,991 4,030,870 Consumer real estate: HELOC 1,443,651 11,653 10,129 1,465,433 49,009 3,314 8,781 61,104 1,526,537 R/E installment loans 4,652,658 10,470 6,497 4,669,625 15,146 1,924 4,474 21,544 4,691,169 Purchased credit-impaired loans 24,096 2,094 5,620 31,810 — — — — 31,810 Total consumer real estate 6,120,405 24,217 22,246 6,166,868 64,155 5,238 13,255 82,648 6,249,516 Permanent mortgage 193,591 2,585 4,562 200,738 11,227 996 9,487 21,710 222,448 Credit card & other: Credit card 188,009 2,133 1,203 191,345 — — — — 191,345 Other 320,551 3,570 526 324,647 110 60 454 624 325,271 Purchased credit-impaired loans 746 611 397 1,754 — — — — 1,754 Total credit card & other 509,306 6,314 2,126 517,746 110 60 454 624 518,370 Total loans, net of unearned income $ 27,312,619 $ 42,703 $ 32,461 $ 27,387,783 $ 101,879 $ 11,831 $ 34,039 $ 147,749 $ 27,535,532 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $20.2 million .
Schedule Of Troubled Debt Restructurings Occurring During The Year	The following tables reflect portfolio loans that were classified as TDRs during the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 1 $ 62 $ 59 4 $ 14,179 $ 14,101 Total commercial (C&I) 1 62 59 4 14,179 14,101 Commercial real estate: Income CRE — — — — — — Total commercial real estate — — — — — — Consumer real estate: HELOC 13 1,638 1,631 57 7,013 6,950 R/E installment loans 16 1,771 1,854 77 9,261 9,292 Total consumer real estate 29 3,409 3,485 134 16,274 16,242 Permanent mortgage — — — 5 1,469 1,498 Credit card & other 35 134 126 68 317 300 Total troubled debt restructurings 65 $ 3,605 $ 3,670 211 $ 32,239 $ 32,141 Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 (Dollars in thousands) Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Commercial (C&I): General C&I 1 $ 25,591 $ 25,439 9 $ 27,639 $ 27,190 Total commercial (C&I) 1 25,591 25,439 9 27,639 27,190 Commercial real estate: Income CRE 1 442 442 4 643 637 Total commercial real estate 1 442 442 4 643 637 Consumer real estate: HELOC 15 1,057 1,041 79 7,641 7,580 R/E installment loans 62 4,561 4,356 77 5,944 5,738 Total consumer real estate 77 5,618 5,397 156 13,585 13,318 Permanent mortgage — — — 5 709 713 Credit card & other 12 65 59 80 370 350 Total troubled debt restructurings 91 $ 31,716 $ 31,337 254 $ 42,946 $ 42,208
Schedule Of Troubled Debt Restructurings Within The Previous 12 Months	The following tables present TDRs which re-defaulted during the three and nine months ended September 30, 2019 and 2018 , and as to which the modification occurred 12 months or less prior to the re-default. For purposes of this disclosure, FHN generally defines payment default as 30 or more days past due. Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Commercial (C&I): General C&I — $ — — $ — Total commercial (C&I) — — — — Consumer real estate: HELOC 2 99 4 198 R/E installment loans — — 1 38 Total consumer real estate 2 99 5 236 Permanent mortgage 1 7 1 7 Credit card & other 8 45 23 77 Total troubled debt restructurings 11 $ 151 29 $ 320 Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Commercial (C&I): General C&I 1 $ 321 2 $ 579 Total commercial (C&I) 1 321 2 579 Consumer real estate: HELOC 1 40 5 204 R/E installment loans — — 1 25 Total consumer real estate 1 40 6 229 Permanent mortgage 3 294 5 699 Credit card & other 13 56 39 212 Total troubled debt restructurings 18 $ 711 52 $ 1,719

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Rollforward Of The Allowance For Loan Losses By Portfolio Segment	The following table provides a rollforward of the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2019 and 2018 : (Dollars in thousands) C&I (a) Commercial Real Estate (a) Consumer Real Estate Permanent Mortgage Credit Card and Other Total Balance as of July 1, 2019 $ 116,096 $ 32,953 $ 22,857 $ 8,675 $ 12,168 $ 192,749 Charge-offs (18,598 ) (369 ) (1,471 ) (2 ) (3,897 ) (24,337 ) Recoveries 3,245 181 4,349 706 1,256 9,737 Provision/(provision credit) for loan losses 13,387 2,860 (3,898 ) (542 ) 3,193 15,000 Balance as of September 30, 2019 114,130 35,625 21,837 8,837 12,720 193,149 Balance as of January 1, 2019 98,947 31,311 26,439 11,000 12,727 180,424 Charge-offs (28,289 ) (924 ) (5,809 ) (182 ) (11,883 ) (47,087 ) Recoveries 4,593 150 12,316 2,305 3,448 22,812 Provision/(provision credit) for loan losses 38,879 5,088 (11,109 ) (4,286 ) 8,428 37,000 Balance as of September 30, 2019 114,130 35,625 21,837 8,837 12,720 193,149 Allowance - individually evaluated for impairment 4,427 — 12,358 8,363 450 25,598 Allowance - collectively evaluated for impairment 108,802 35,625 8,262 474 12,223 165,386 Allowance - purchased credit-impaired loans 901 — 1,217 — 47 2,165 Loans, net of unearned as of September 30, 2019: Individually evaluated for impairment 85,303 1,940 108,315 64,302 720 260,580 Collectively evaluated for impairment 20,178,826 4,220,185 5,927,782 118,165 491,605 30,936,563 Purchased credit-impaired loans 29,801 6,473 26,732 — 684 63,690 Total loans, net of unearned income $ 20,293,930 $ 4,228,598 $ 6,062,829 $ 182,467 $ 493,009 $ 31,260,833 Balance as of July 1, 2018 $ 96,834 $ 33,832 $ 34,155 $ 11,692 $ 8,949 $ 185,462 Charge-offs (1,391 ) (9 ) (2,801 ) (15 ) (5,266 ) (9,482 ) Recoveries 1,052 267 5,302 554 804 7,979 Provision/(provision credit) for loan losses 3,819 (175 ) (7,737 ) (1,133 ) 7,226 2,000 Balance as of September 30, 2018 100,314 33,915 28,919 11,098 11,713 185,959 Balance as of January 1, 2018 98,211 28,427 39,823 13,113 9,981 189,555 Charge-offs (6,753 ) (281 ) (6,193 ) (475 ) (14,271 ) (27,973 ) Recoveries 3,607 348 15,129 1,250 3,043 23,377 Provision/(provision credit) for loan losses 5,249 5,421 (19,840 ) (2,790 ) 12,960 1,000 Balance as of September 30, 2018 100,314 33,915 28,919 11,098 11,713 185,959 Allowance - individually evaluated for impairment 6,028 — 18,076 9,996 293 34,393 Allowance - collectively evaluated for impairment 92,382 33,893 9,713 1,102 11,078 148,168 Allowance - purchased credit-impaired loans 1,904 22 1,130 — 342 3,398 Loans, net of unearned as of September 30, 2018: Individually evaluated for impairment 53,549 2,503 119,729 74,833 552 251,166 Collectively evaluated for impairment 15,940,853 4,211,337 6,146,920 162,421 527,673 26,989,204 Purchased credit-impaired loans 49,743 23,196 34,334 — 2,571 109,844 Total loans, net of unearned income $ 16,044,145 $ 4,237,036 $ 6,300,983 $ 237,254 $ 530,796 $ 27,350,214 Certain previously reported amounts have been reclassified to agree with current presentation. a) In third quarter 2019, FHN corrected a previous mis-classification of commercial loans and reclassified approximately $410 million of market investor CRE loans from the C&I portfolio to the CRE portfolio. These loans were identified during an internal review and assessment by management of certain loan populations, a portion of which relate to loans acquired as part of the Capital Bank merger. The reclassification of these loan balances between regional banking portfolios did not have an impact on FHN’s consolidated period-end or average balance sheet and had an immaterial effect on the allowance for loan losses. No adjustments were made to prior periods as the impact of the reclassification, including the effect on the allowance for loan losses was deemed to be immaterial in all periods.

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition	The following is a summary of other intangible assets included in the Consolidated Condensed Statements of Condition: September 30, 2019 December 31, 2018 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (42,566 ) $ 114,584 $ 157,150 $ (28,150 ) $ 129,000 Customer relationships 77,865 (59,015 ) 18,850 77,865 (55,597 ) 22,268 Other (a) 5,622 (2,650 ) 2,972 5,622 (1,856 ) 3,766 Total $ 240,637 $ (104,231 ) $ 136,406 $ 240,637 $ (85,603 ) $ 155,034 (a) Balance primarily includes noncompete covenants, as well as $ .3 million related to state banking licenses not subject to amortization.
Schedule of Estimated Aggregate Amortization Expense for Intangible Assets	As of September 30, 2019 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2019 $ 6,208 2020 21,159 2021 19,547 2022 17,412 2023 16,117 2024 14,679
Summary Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments	The following is a summary of goodwill by reportable segment included in the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2017 $ 1,243,885 $ 142,968 $ 1,386,853 Additions (a) 22,969 — 22,969 September 30, 2018 $ 1,266,854 $ 142,968 $ 1,409,822 December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — September 30, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 (a) See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to acquisitions.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Supplemental Balance Sheet	The following table provides a detail of the classification of FHN's right-of-use ("ROU") assets and lease liabilities included in the Consolidated Condensed Statement of Conditions. (Dollars in thousands) September 30, 2019 Lease Right-of-Use Assets: Classification Operating lease right-of use assets Other assets $ 174,352 Finance lease right-of use assets Other assets 634 Total Lease Right-of Use Assets $ 174,986 Lease Liabilities: Operating lease liabilities Other liabilities $ 196,012 Finance lease liabilities Other liabilities 1,280 Total Lease Liabilities $ 197,292
Components of Lease Expense, Other Information, and Supplemental Cash Flow	The following table details the weighted average remaining lease term and discount rate for FHN's operating and finance leases as of September 30, 2019 . Weighted Average Remaining Lease Terms Operating leases 12.01 years Finance leases 6.67 years Weighted Average Discount Rate Operating leases 3.47 % Finance leases 9.96 % The following table provides a detail of the components of lease expense and other lease information for the three and nine months ended September 30, 2019 : (Dollars in thousands) Three Months Ended Nine Months Ended Lease cost Operating lease cost $ 5,989 $ 18,573 Finance lease cost: Amortization of right-of-use assets 23 71 Interest on lease liabilities 33 98 Short-term lease cost (10 ) 70 Sublease income (97 ) (289 ) Total lease cost $ 5,938 $ 18,523 Other information (Gain)/loss on right-of-use asset impairment-Operating leases $ — $ 2,551 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 5,279 16,626 Operating cash flows from finance leases 32 98 Financing cash flows from finance leases 32 94 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 574 5,358 Finance leases — —
Maturities of Lease Liabilities, Operating	The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of September 30, 2019 : (Dollars in thousands) September 30, 2019 Remainder of 2019 $ 6,261 2020 24,854 2021 22,451 2022 21,202 2023 20,240 2024 and after 147,800 Total future minimum lease payments 242,808 Less lease liability interest (45,516 ) Present value of net future minimum lease payments $ 197,292
Maturity of Lease Liabilities, Finance	The following table provides a detail of the maturities of FHN's operating and finance lease liabilities as of September 30, 2019 : (Dollars in thousands) September 30, 2019 Remainder of 2019 $ 6,261 2020 24,854 2021 22,451 2022 21,202 2023 20,240 2024 and after 147,800 Total future minimum lease payments 242,808 Less lease liability interest (45,516 ) Present value of net future minimum lease payments $ 197,292
Maturity of Leases Prior to Adoption of ASC 842	Minimum future lease payments for noncancelable operating leases, primarily on premises, on December 31, 2018 are shown below. (Dollars in thousands) December 31, 2018 2019 $ 27,524 2020 24,722 2021 20,954 2022 16,518 2023 13,174 2024 and after 42,370 Total minimum lease payments $ 145,262

Other Income And Other Expense

Other Income And Other Expense (Tables)	9 Months Ended
	Sep. 30, 2019
Other Nonoperating Income (Expense) [Abstract]
Other Income And Other Expense	Following is detail of All other income and commissions and All other expense as presented in the Consolidated Condensed Statements of Income: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 All other income and commissions: Other service charges $ 5,738 $ 3,758 $ 15,231 $ 11,609 ATM and interchange fees 4,507 3,263 12,010 9,943 Mortgage banking 2,019 2,533 6,477 7,510 Dividend income 1,556 2,757 5,678 8,130 Letter of credit fees 1,400 1,307 4,021 3,851 Electronic banking fees 1,288 1,309 3,826 3,741 Insurance commissions 577 396 1,767 1,629 Deferred compensation (a) 472 1,458 7,884 2,900 Gain/(loss) on extinguishment of debt (6 ) (1 ) (7 ) (1 ) Other 9,299 5,009 20,261 14,244 Total $ 26,850 $ 21,789 $ 77,148 $ 63,556 All other expense: Litigation and regulatory matters (b) $ 11,534 $ (1,541 ) $ 3,317 $ 609 Customer relations 3,165 1,328 6,304 3,749 Travel and entertainment 2,849 3,988 8,467 12,102 Other insurance and taxes 2,475 2,761 7,664 8,178 Supplies 1,668 1,635 4,814 5,458 Miscellaneous loan costs 1,017 543 2,901 2,720 Employee training and dues 1,003 1,682 3,711 5,310 Non-service components of net periodic pension and post-retirement cost 986 1,585 1,977 3,619 Tax credit investments 407 1,370 1,349 3,586 OREO 342 1,256 1 2,174 Other 14,231 11,094 48,169 64,527 Total $ 39,677 $ 25,701 $ 88,674 $ 112,032 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts are driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense. (b) Litigation and regulatory matters for the nine months ended September 30, 2019 includes an $8.3 million expense reversal related to the settlement of litigation matters within the Non-Strategic segment during second quarter 2019.

Components of Other Comprehen_2

Components of Other Comprehensive Income/(loss) (Tables)	9 Months Ended
	Sep. 30, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income/(Loss)	The following table provides the changes in accumulated other comprehensive income/(loss) by component, net of tax, for the three and nine months ended September 30, 2019 and 2018 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of July 1, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 ) Net unrealized gains/(losses) 16,889 1,855 — 18,744 Amounts reclassified from AOCI — 989 2,102 3,091 Other comprehensive income/(loss) 16,889 2,844 2,102 21,835 Balance as of September 30, 2019 $ 37,960 $ 5,028 $ (283,642 ) $ (240,654 ) Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 113,495 13,367 — 126,862 Amounts reclassified from AOCI 201 3,773 5,126 9,100 Other comprehensive income/(loss) 113,696 17,140 5,126 135,962 Balance as of September 30, 2019 $ 37,960 $ 5,028 $ (283,642 ) $ (240,654 ) (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of July 1, 2018 $ (107,476 ) $ (19,757 ) $ (284,881 ) $ (412,114 ) Net unrealized gains/(losses) (25,924 ) (2,517 ) — (28,441 ) Amounts reclassified from AOCI — 771 2,135 2,906 Other comprehensive income/(loss) (25,924 ) (1,746 ) 2,135 (25,535 ) Balance as of September 30, 2018 $ (133,400 ) $ (21,503 ) $ (282,746 ) $ (437,649 ) Balance as of January 1, 2018 $ (26,834 ) $ (7,764 ) $ (288,227 ) $ (322,825 ) Adjustment to reflect adoption of ASU 2016-01 (5 ) (206 ) — (211 ) Beginning balance, as adjusted (26,839 ) (7,970 ) (288,227 ) (323,036 ) Net unrealized gains/(losses) (106,522 ) (14,612 ) — (121,134 ) Amounts reclassified from AOCI (39 ) 1,079 5,481 6,521 Other comprehensive income/(loss) (106,561 ) (13,533 ) 5,481 (114,613 ) Balance as of September 30, 2018 $ (133,400 ) $ (21,503 ) $ (282,746 ) $ (437,649 )
Reclassification Out Of Accumulated Other Comprehensive Income	Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Nine Months Ended Details about AOCI 2019 2018 2019 2018 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ — $ 267 $ (52 ) Debt securities gains/(losses), net Tax expense/(benefit) — — (66 ) 13 Provision/(benefit) for income taxes — — 201 (39 ) Cash flow hedges: Realized (gains)/losses on cash flow hedges 1,313 1,024 5,012 1,433 Interest and fees on loans Tax expense/(benefit) (324 ) (253 ) (1,239 ) (354 ) Provision/(benefit) for income taxes 989 771 3,773 1,079 Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 2,792 2,836 6,809 7,280 All other expense Tax expense/(benefit) (690 ) (701 ) (1,683 ) (1,799 ) Provision/(benefit) for income taxes 2,102 2,135 5,126 5,481 Total reclassification from AOCI $ 3,091 $ 2,906 $ 9,100 $ 6,521

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Schedule of Reconciliation Of Earnings/(Loss) Per Common And Diluted Share	The following table provides reconciliations of net income to net income available to common shareholders and the difference between average basic common shares outstanding and average diluted common shares outstanding: Three Months Ended Nine Months Ended (Dollars and shares in thousands, except per share data) 2019 2018 2019 2018 Net income/(loss) $ 113,943 $ 274,716 $ 331,090 $ 455,702 Net income attributable to noncontrolling interest 2,883 2,883 8,555 8,555 Net income/(loss) attributable to controlling interest 111,060 271,833 322,535 447,147 Preferred stock dividends 1,550 1,550 4,650 4,650 Net income/(loss) available to common shareholders $ 109,510 $ 270,283 $ 317,885 $ 442,497 Weighted average common shares outstanding—basic 311,888 324,406 314,442 325,341 Effect of dilutive securities 1,917 2,846 1,959 3,304 Weighted average common shares outstanding—diluted 313,805 327,252 316,401 328,645 Net income/(loss) per share available to common shareholders $ 0.35 $ 0.83 $ 1.01 $ 1.36 Diluted income/(loss) per share available to common shareholders $ 0.35 $ 0.83 $ 1.00 $ 1.35
Schedule of Anti-Dilutive Options and Awards	The following table presents outstanding options and other equity awards that were excluded from the calculation of diluted earnings per share because they were either anti-dilutive (the exercise price was higher than the weighted-average market price for the period) or the performance conditions have not been met: Three Months Ended Nine Months Ended (Shares in thousands) 2019 2018 2019 2018 Stock options excluded from the calculation of diluted EPS 1,883 2,251 2,413 2,316 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 21.21 $ 23.67 $ 21.36 $ 24.43 Other equity awards excluded from the calculation of diluted EPS 2,094 1,605 1,815 538

Pension, Savings, And Other E_2

Pension, Savings, And Other Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2019
Retirement Benefits, Description [Abstract]
Schedule of Components of Net Periodic Benefit Cost	The components of net periodic benefit cost for the three months ended September 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 7 $ 11 $ 23 $ 33 Interest cost 7,505 6,935 358 328 Expected return on plan assets (9,335 ) (8,222 ) (314 ) (268 ) Amortization of unrecognized: Actuarial (gain)/loss 2,546 3,164 (112 ) (108 ) Net periodic benefit cost/(credit) $ 723 $ 1,888 $ (45 ) $ (15 ) The components of net periodic benefit cost for the nine months ended September 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2019 2018 2019 2018 Components of net periodic benefit cost Service cost $ 23 $ 31 $ 71 $ 100 Interest cost 22,655 20,908 1,060 982 Expected return on plan assets (27,681 ) (24,673 ) (852 ) (806 ) Amortization of unrecognized: Actuarial (gain)/loss 7,416 9,076 (346 ) (290 ) Net periodic benefit cost/(credit) $ 2,413 $ 5,342 $ (67 ) $ (14 )

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting, Measurement Disclosures [Abstract]
Amounts Of Consolidated Revenue, Expense, Tax And Assets	The following table reflects the amounts of consolidated revenue, expense, tax, and average assets for each segment for the three and nine months ended September 30 : Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Consolidated Net interest income $ 300,676 $ 305,700 $ 898,794 $ 917,805 Provision/(provision credit) for loan losses 15,000 2,000 37,000 1,000 Noninterest income 171,735 348,972 470,773 612,514 Noninterest expense 307,672 294,031 904,156 940,064 Income/(loss) before income taxes 149,739 358,641 428,411 589,255 Provision/(benefit) for income taxes 35,796 83,925 97,321 133,553 Net income/(loss) $ 113,943 $ 274,716 $ 331,090 $ 455,702 Average assets $ 41,940,901 $ 40,077,033 $ 41,359,574 $ 40,199,487 Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Regional Banking Net interest income $ 302,370 $ 301,099 $ 885,622 $ 899,183 Provision/(provision credit) for loan losses 20,472 7,205 51,690 16,155 Noninterest income 85,776 80,705 240,281 241,760 Noninterest expense 193,211 207,549 585,947 620,261 Income/(loss) before income taxes 174,463 167,050 488,266 504,527 Provision/(benefit) for income taxes 41,762 39,195 115,129 118,582 Net income/(loss) $ 132,701 $ 127,855 $ 373,137 $ 385,945 Average assets $ 31,626,870 $ 28,551,247 $ 30,224,875 $ 28,339,571 Fixed Income Net interest income $ 5,309 $ 9,054 $ 18,811 $ 26,742 Noninterest income 77,809 41,124 197,238 125,091 Noninterest expense 67,787 46,561 174,331 142,857 Income/(loss) before income taxes 15,331 3,617 41,718 8,976 Provision/(benefit) for income taxes 3,656 719 9,834 1,689 Net income/(loss) $ 11,675 $ 2,898 $ 31,884 $ 7,287 Average assets $ 2,882,316 $ 3,246,120 $ 2,952,766 $ 3,322,576 Corporate Net interest income/(expense) $ (13,225 ) $ (15,462 ) $ (28,062 ) $ (48,835 ) Noninterest income (a) 7,359 222,620 30,111 240,674 Noninterest expense (b) (c) 41,993 33,561 137,867 154,779 Income/(loss) before income taxes (47,859 ) 173,597 (135,818 ) 37,060 Provision/(benefit) for income taxes (11,550 ) 40,458 (36,105 ) 3,719 Net income/(loss) $ (36,309 ) $ 133,139 $ (99,713 ) $ 33,341 Average assets $ 6,430,822 $ 6,907,970 $ 7,094,650 $ 6,995,043 Non-Strategic Net interest income $ 6,222 $ 11,009 $ 22,423 $ 40,715 Provision/(provision credit) for loan losses (5,472 ) (5,205 ) (14,690 ) (15,155 ) Noninterest income 791 4,523 3,143 4,989 Noninterest expense 4,681 6,360 6,011 22,167 Income/(loss) before income taxes 7,804 14,377 34,245 38,692 Provision/(benefit) for income taxes 1,928 3,553 8,463 9,563 Net income/(loss) $ 5,876 $ 10,824 $ 25,782 $ 29,129 Average assets $ 1,000,893 $ 1,371,696 $ 1,087,283 $ 1,542,297 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Three and nine months ended September 30, 2018 includes a $212.9 million pre-tax gain from the sale of Visa Class B shares. (b) Three and nine months ended September 30, 2019 include restructuring-related costs associated with efficiency initiatives; refer to Note 18 - Restructuring, Repositioning, and Efficiency for additional information. Three and nine months ended September 30, 2019 and 2018 include acquisition-related expenses; refer to Note 2 - Acquisitions and Divestitures for additional information. (c) Three and nine months ended September 30, 2019 include $3.1 million and $12.2 million , respectively, of asset impairments, professional fees, and other customer-contact and technology-related expenses associated with rebranding initiatives. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the three months ended September 30, 2019 and 2018 : Three months ended September 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 57 $ 77,588 $ — $ — $ 77,645 Deposit transactions and cash management 32,583 — 1,739 57 34,379 Brokerage, management fees and commissions 14,157 — — — 14,157 Trust services and investment management 7,190 — (27 ) — 7,163 Bankcard income 7,028 11 63 (85 ) 7,017 BOLI (b) — — 4,427 — 4,427 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — 97 — 97 All other income and commissions (c) 24,761 210 1,060 819 26,850 Total noninterest income $ 85,776 $ 77,809 $ 7,359 $ 791 $ 171,735 (a) Includes $9.2 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Three months ended September 30, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 102 $ 40,938 $ (5 ) $ 3,778 $ 44,813 Deposit transactions and cash management 33,989 3 1,741 59 35,792 Brokerage, management fees and commissions 14,199 — — 1 14,200 Trust services and investment management 7,453 — (15 ) — 7,438 Bankcard income 7,865 — 57 (178 ) 7,744 BOLI (b) — — 4,337 — 4,337 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) (d) — — 212,859 — 212,859 All other income and commissions (c) 17,097 183 3,646 863 21,789 Total noninterest income $ 80,705 $ 41,124 $ 222,620 $ 4,523 $ 348,972 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $8.4 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." Non-Strategic includes a $3.8 million gain from the reversal of a previous valuation adjustment due to sales of TRUPs loans excluded from the scope of ASC 606. (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) In third quarter 2018, FHN sold its remaining holdings of Visa Class B shares resulting in a pre-tax gain of $212.9 million . Nine months ended September 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 120 $ 196,582 $ — $ 1,106 $ 197,808 Deposit transactions and cash management 93,195 4 5,009 166 98,374 Brokerage, management fees and commissions 40,904 — — 6 40,910 Trust services and investment management 22,148 — (71 ) — 22,077 Bankcard income 20,661 11 185 (533 ) 20,324 BOLI (b) — — 13,955 — 13,955 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 444 — 444 All other income and commissions (c) 63,253 641 10,856 2,398 77,148 Total noninterest income $ 240,281 $ 197,238 $ 30,111 $ 3,143 $ 470,773 (a) Includes $23.6 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. Nine months ended September 30, 2018 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 314 $ 123,929 $ (5 ) $ 3,778 $ 128,016 Deposit transactions and cash management 103,219 9 4,467 164 107,859 Brokerage, management fees and commissions 41,422 — — 1 41,423 Trust services and investment management 22,891 — (44 ) — 22,847 Bankcard income 21,696 — 169 (131 ) 21,734 BOLI (b) — — 14,103 — 14,103 Debt securities gains/(losses), net (b) — — 52 — 52 Equity securities gains/(losses), net (b) (d) — — 212,924 — 212,924 All other income and commissions (c) (e) 52,218 1,153 9,008 1,177 63,556 Total noninterest income $ 241,760 $ 125,091 $ 240,674 $ 4,989 $ 612,514 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $24.0 million of underwriting, portfolio advisory, and other noninterest income in scope of Accounting Standards Codification ("ASC") 606, "Revenue From Contracts With Customers." Non-Strategic includes a $3.8 million gain from the reversal of a previous valuation adjustment due to sales of TRUPs loans excluded from the scope of ASC 606. (b) Represents noninterest income excluded from the scope of ASC 606. Amount is presented for informational purposes to reconcile total non-interest income. (c) Includes other service charges, ATM and interchange fees, electronic banking fees, and insurance commission in scope of ASC 606. (d) In third quarter 2018, FHN sold its remaining holdings of Visa Class B shares resulting in a pre-tax gain of $212.9 million . (e) Corporate includes $4.1 million of gains on the sales of buildings.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2019
Variable Interest Entities [Abstract]
Summary Of VIEs Consolidated By FHN	The following table summarizes VIEs consolidated by FHN as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans On-Balance Sheet Consumer Loan Securitization Rabbi Trusts Used for Deferred Compensation Plans ( Dollars in thousands ) Carrying Value Carrying Value Carrying Value Carrying Value Assets: Cash and due from banks $ — N/A $ — N/A Loans, net of unearned income 12,448 N/A 16,213 N/A Less: Allowance for loan losses — N/A — N/A Total net loans 12,448 N/A 16,213 N/A Other assets 24 $ 87,612 35 $ 78,446 Total assets $ 12,472 $ 87,612 $ 16,248 $ 78,446 Liabilities: Term borrowings $ 401 N/A $ 2,981 N/A Other liabilities — $ 66,051 — $ 56,700 Total liabilities $ 401 $ 66,051 $ 2,981 $ 56,700
Summary of the Impact of Qualifying LIHTC Investments	The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Condensed Statements of Income for the three and nine months ended September 30, 2019 , and 2018 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended Nine Months Ended ( Dollars in thousands ) 2019 2018 2019 2018 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 4,436 $ 1,547 $ 12,721 $ 6,094 Low income housing tax credits (3,607 ) (2,584 ) (10,758 ) (7,681 ) Other tax benefits related to qualifying LIHTC investments (1,751 ) (1,412 ) (4,970 ) (2,996 )
Summary Of VIEs Not Consolidated By FHN	The following table summarizes FHN’s nonconsolidated VIEs as of September 30, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 183,975 $ 96,637 (a) Other tax credit investments (b) (c) 9,226 — Other assets Small issuer trust preferred holdings (d) 237,422 — Loans, net of unearned income On-balance sheet trust preferred securitization 33,384 80,790 (e) Proprietary residential mortgage securitizations 1,098 — Trading securities Holdings of agency mortgage-backed securities (d) 4,762,162 — (f) Commercial loan troubled debt restructurings (g) 47,940 — Loans, net of unearned income Sale-leaseback transaction 18,170 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $87.3 million of current investments and $96.6 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2021. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $80.8 million classified as Term borrowings. (f) Includes $.7 billion classified as Trading securities and $4.1 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $46.7 million of current receivables and $1.2 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments. (i) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2018 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 156,056 $ 80,427 (a) Other tax credit investments (b) (c) 3,619 — Other assets Small issuer trust preferred holdings (d) 270,585 — Loans, net of unearned income On-balance sheet trust preferred securitization 37,532 76,642 (e) Proprietary residential mortgage securitizations 1,524 — Trading securities Holdings of agency mortgage-backed securities (d) 4,842,630 — (f) Commercial loan troubled debt restructurings (g) 40,590 — Loans, net of unearned income Sale-leaseback transaction 16,327 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $75.6 million of current investments and $80.4 million of accrued contractual funding commitments. Accrued funding commitments represent unconditional contractual obligations for future funding events, and are also recognized in Other liabilities. FHN currently expects to be required to fund these accrued commitments by the end of 2020. (b) A liability is not recognized as investments are written down over the life of the related tax credit. (c) Maximum loss exposure represents current investment balance. Of the initial investment, $2.7 million was funded through loans from community development enterprises. (d) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (e) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $76.6 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.4 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $38.2 million of current receivables and $ 2.3 million of contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring. (h) Maximum loss exposure represents the current loan balance plus additional funding commitments less amounts received from the buyer-lessor. (i)

Derivatives (Tables)

Derivatives (Tables)	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives Associated With Fixed Income Trading Activities	The following tables summarize FHN’s derivatives associated with fixed income trading activities as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,679,166 $ 93,314 $ 1,285 Offsetting upstream interest rate contracts 2,679,166 541 5,509 Option contracts purchased 20,000 94 — Forwards and futures purchased 10,765,259 26,191 8,233 Forwards and futures sold 10,799,031 9,327 25,586 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,271,448 $ 18,744 $ 27,768 Offsetting upstream interest rate contracts 2,271,448 4,014 9,041 Option contracts purchased 20,000 25 — Forwards and futures purchased 4,684,177 28,304 181 Forwards and futures sold 4,967,454 522 30,055
Derivatives Associated With Interest Rate Risk Management Activities	The following tables summarize FHN’s derivatives associated with interest rate risk management activities as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,681,149 $ 120,031 $ 1,456 Offsetting upstream interest rate contracts 2,681,149 1,094 13,072 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 42 $ 14 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (2,218 ) Unamortized premium/(discount) and issuance costs N/A N/A (1,084 ) Total carrying value N/A N/A $ 896,698 December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 2,029,162 $ 20,262 $ 25,880 Offsetting upstream interest rate contracts 2,029,162 8,154 9,153 Debt Hedging Hedging Instruments: Interest rate swaps $ 900,000 $ 127 $ 6 Hedged Items: Term borrowings: Par N/A N/A $ 900,000 Cumulative fair value hedging adjustments N/A N/A (15,094 ) Unamortized premium/(discount) and issuance costs N/A N/A (2,295 ) Total carrying value N/A N/A $ 882,611
Gains/(Losses) on Derivatives Associated with Interest Rate Risk Management Activities	The following table summarizes gains/(losses) on FHN’s derivatives associated with interest rate risk management activities for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended 2019 2018 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts (a) $ 44,375 $ (10,620 ) $ 124,193 $ (39,803 ) Offsetting upstream interest rate contracts (a) (44,375 ) 10,620 (124,193 ) 39,803 Debt Hedging Hedging Instruments: Interest rate swaps (b) $ 1,994 $ (246 ) $ 12,969 $ (8,386 ) Hedged Items: Term borrowings (a) (c) (2,004 ) 240 (12,876 ) 8,310 (a) Gains/losses included in All other expense within the Consolidated Condensed Statements of Income. (b) Gains/losses included in the Interest expense. (c) Represents gains and losses attributable to changes in fair value due to interest rate risk as designated in ASC 815-20 hedging relationships.
Derivative Associated With Cash Flow Hedges	The following tables summarize FHN’s derivative activities associated with cash flow hedges as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 10 $ 73 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A December 31, 2018 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 $ 888 $ 5 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 900,000 N/A
Gains/(Losses) on Derivatives Associated with Cash Flow Hedges	The following table summarizes gains/(losses) on FHN’s derivatives associated with cash flow hedges for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended Nine Months Ended 2019 2018 2019 2018 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 3,840 $ (2,257 ) $ 22,954 $ (17,788 ) Gain/(loss) recognized in Other comprehensive income/(loss) 1,855 (2,517 ) 13,367 (14,612 ) Gain/(loss) reclassified from AOCI into Interest income 989 771 3,773 1,079 (a) Approximately $1.3 million of pre-tax losses are expected to be reclassified into earnings in the next twelve months.
Derivative Assets And Collateral Received	The following table provides details of derivative assets and collateral received as presented on the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition (a) Derivative liabilities available for offset Collateral received Net amount Derivative assets: September 30, 2019 (b) $ 215,085 $ — $ 215,085 $ (2,957 ) $ (162,303 ) $ 49,825 December 31, 2018 (b) 52,562 — 52,562 (12,745 ) (39,637 ) 180 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of September 30, 2019 and December 31, 2018 , $35.7 million and $28.9 million , respectively, of derivative assets (primarily fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.
Derivative Liabilities and Collateral Pledged	The following table provides details of derivative liabilities and collateral pledged as presented on the Consolidated Condensed Statements of Condition as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition (a) Derivative assets available for offset Collateral pledged Net amount Derivative liabilities: September 30, 2019 (b) $ 21,526 $ — $ 21,526 $ (2,957 ) $ (18,269 ) $ 300 December 31, 2018 (b) 71,853 — 71,853 (12,745 ) (54,773 ) 4,335 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of September 30, 2019 and December 31, 2018 , $62.0 million and $61.9 million , respectively, of derivative liabilities (primarily Visa-related derivatives and fixed income forward contracts) have been excluded from these tables because they are generally not subject to master netting or similar agreements. (b) Amounts are comprised entirely of interest rate derivative contracts.

Master Netting and Similar Ag_2

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions (Tables)	9 Months Ended
	Sep. 30, 2019
Offsetting [Abstract]
Securities Purchased Under Agreements To Resell And Collateral Pledged By Counterparties	The following table provides details of Securities purchased under agreements to resell as presented on the Consolidated Condensed Statements of Condition and collateral pledged by counterparties as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized assets Gross amounts offset in the Statements of Condition Net amounts of assets presented in the Statements of Condition Offsetting securities sold under agreements to repurchase Securities collateral (not recognized on FHN’s Statements of Condition) Net amount Securities purchased under agreements to resell: September 30, 2019 $ 697,214 $ — $ 697,214 $ (449 ) $ (693,737 ) $ 3,028 December 31, 2018 386,443 — 386,443 (261 ) (382,756 ) 3,426
Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company	The following table provides details of Securities sold under agreements to repurchase as presented on the Consolidated Condensed Statements of Condition and collateral pledged by FHN as of September 30, 2019 and December 31, 2018 : Gross amounts not offset in the Statements of Condition (Dollars in thousands) Gross amounts of recognized liabilities Gross amounts offset in the Statements of Condition Net amounts of liabilities presented in the Statements of Condition Offsetting securities purchased under agreements to resell Securities/ government guaranteed loans collateral Net amount Securities sold under agreements to repurchase: September 30, 2019 $ 735,226 $ — $ 735,226 $ (449 ) $ (734,763 ) $ 14 December 31, 2018 762,592 — 762,592 (261 ) (762,322 ) 9
Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase	The following tables provide details, by collateral type, of the remaining contractual maturity of Securities sold under agreements to repurchase as of September 30, 2019 and December 31, 2018 : September 30, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 22,388 $ — $ 22,388 Government agency issued MBS 364,419 8,960 373,379 Other U.S. government agencies 63,673 — 63,673 Government guaranteed loans (SBA and USDA) 275,786 — 275,786 Total Securities sold under agreements to repurchase $ 726,266 $ 8,960 $ 735,226 December 31, 2018 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 16,321 $ — $ 16,321 Government agency issued MBS 414,488 5,220 419,708 Government agency issued CMO 36,688 — 36,688 Government guaranteed loans (SBA and USDA) 289,875 — 289,875 Total Securities sold under agreements to repurchase $ 757,372 $ 5,220 $ 762,592

Fair Value of Assets & Liabil_2

Fair Value of Assets & Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of September 30, 2019 : September 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 123,871 $ — $ 123,871 Government agency issued MBS — 194,543 — 194,543 Government agency issued CMO — 498,967 — 498,967 Other U.S. government agencies — 159,720 — 159,720 States and municipalities — 86,185 — 86,185 Corporate and other debt — 329,440 — 329,440 Equity, mutual funds, and other — 1,219 — 1,219 Total trading securities—fixed income — 1,393,945 — 1,393,945 Trading securities—mortgage banking — — 1,098 1,098 Loans held-for-sale (elected fair value) — — 14,409 14,409 Securities available-for-sale: U.S. treasuries — 100 — 100 Government agency issued MBS — 2,284,432 — 2,284,432 Government agency issued CMO — 1,784,220 — 1,784,220 Other U.S. government agencies — 241,333 — 241,333 States and municipalities — 50,071 — 50,071 Corporate and other debt — 40,440 — 40,440 Interest-Only Strip (elected fair value) — — 15,249 15,249 Total securities available-for-sale — 4,400,596 15,249 4,415,845 Other assets: Deferred compensation mutual funds 43,826 — — 43,826 Equity, mutual funds, and other 22,442 — — 22,442 Derivatives, forwards and futures 35,518 — — 35,518 Derivatives, interest rate contracts — 215,126 — 215,126 Derivatives, other — 142 — 142 Total other assets 101,786 215,268 — 317,054 Total assets $ 101,786 $ 6,009,809 $ 30,756 $ 6,142,351 Trading liabilities—fixed income: U.S. treasuries $ — $ 505,237 $ — $ 505,237 Other U.S.government agencies — 11,357 — 11,357 States and municipalities — 2,076 — 2,076 Government issued agency CMO — 1,613 — 1,613 Corporate and other debt — 199,494 — 199,494 Total trading liabilities—fixed income — 719,777 — 719,777 Other liabilities: Derivatives, forwards and futures 33,819 — — 33,819 Derivatives, interest rate contracts — 21,409 — 21,409 Derivatives, other — 217 28,085 28,302 Total other liabilities 33,819 21,626 28,085 83,530 Total liabilities $ 33,819 $ 741,403 $ 28,085 $ 803,307 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2018 : December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 169,799 $ — $ 169,799 Government agency issued MBS — 133,373 — 133,373 Government agency issued CMO — 330,456 — 330,456 Other U.S. government agencies — 76,733 — 76,733 States and municipalities — 54,234 — 54,234 Corporate and other debt — 682,068 — 682,068 Equity, mutual funds, and other — (19 ) — (19 ) Total trading securities—fixed income — 1,446,644 — 1,446,644 Trading securities—mortgage banking — — 1,524 1,524 Loans held-for-sale (elected fair value) — — 16,273 16,273 Securities available-for-sale: U.S. treasuries — 98 — 98 Government agency issued MBS — 2,420,106 — 2,420,106 Government agency issued CMO — 1,958,695 — 1,958,695 Other U.S. government agencies — 149,786 — 149,786 States and municipalities — 32,573 — 32,573 Corporate and other debt — 55,310 — 55,310 Interest-Only Strip (elected fair value) — — 9,902 9,902 Total securities available-for-sale — 4,616,568 9,902 4,626,470 Other assets: Deferred compensation mutual funds 37,771 — — 37,771 Equity, mutual funds, and other 22,248 — — 22,248 Derivatives, forwards and futures 28,826 — — 28,826 Derivatives, interest rate contracts — 52,214 — 52,214 Derivatives, other — 435 — 435 Total other assets 88,845 52,649 — 141,494 Total assets $ 88,845 $ 6,115,861 $ 27,699 $ 6,232,405 Trading liabilities—fixed income: U.S. treasuries $ — $ 207,739 $ — $ 207,739 Other U.S.government agencies — 98 — 98 Corporate and other debt — 127,543 — 127,543 Total trading liabilities—fixed income — 335,380 — 335,380 Other liabilities: Derivatives, forwards and futures 30,236 — — 30,236 Derivatives, interest rate contracts — 71,853 — 71,853 Derivatives, other — 84 31,540 31,624 Total other liabilities 30,236 71,937 31,540 133,713 Total liabilities $ 30,236 $ 407,317 $ 31,540 $ 469,093
Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value	The changes in Level 3 assets and liabilities measured at fair value for the three months ended September 30, 2019 and 2018 , on a recurring basis are summarized as follows: Three Months Ended September 30, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on July 1, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Total net gains/(losses) included in: Net income (157 ) (1,421 ) 443 (4,008 ) Purchases — — — — Sales — (11,401 ) — — Settlements — — (1,126 ) 2,468 Net transfers into/(out of) Level 3 — 10,279 (b) — (d) — Balance on September 30, 2019 $ 1,098 $ 15,249 $ 14,409 $ (28,085 ) Net unrealized gains/(losses) included in net income $ — (a) $ (1,977 ) (c) $ 443 (a) $ (4,008 ) (e) Three Months Ended September 30, 2018 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative Balance on July 1, 2018 $ 1,724 $ 5,787 $ 16,718 $ (9,425 ) Total net gains/(losses) included in: Net income 33 (456 ) 277 (529 ) Purchases — — — (28,100 ) (f) Sales — (2,034 ) — — Settlements (165 ) — (759 ) 3,842 Net transfers into/(out of) Level 3 — 7,064 (b) — (d) — Balance on September 30, 2018 $ 1,592 $ 10,361 $ 16,236 $ (34,212 ) Net unrealized gains/(losses) included in net income $ (3 ) (a) $ (215 ) (c) $ 277 (a) $ (530 ) (e) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into OREO (level 3 nonrecurring). (e) Included in Other expense. (f) Increase associated with Visa-related derivatives executed in third quarter 2018, see Note 15 - Derivatives for additional discussion. There were no net unrealized gains/(losses) for Level 3 assets and liabilities included in other comprehensive income as of September 30, 2019 and 2018. Changes in Recurring Level 3 Fair Value Measurements The changes in Level 3 assets and liabilities measured at fair value for the nine months ended September 30, 2019 and 2018 , on a recurring basis are summarized as follows: Nine Months Ended September 30, 2019 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on January 1, 2019 $ 1,524 $ 9,902 $ 16,273 $ (31,540 ) Total net gains/(losses) included in: Net income (128 ) (2,820 ) 1,259 (3,892 ) Purchases — 86 10 — Sales — (38,612 ) — — Settlements (298 ) — (3,133 ) 7,347 Net transfers into/(out of) Level 3 — 46,693 (b) — (d) — Balance on September 30, 2019 $ 1,098 $ 15,249 $ 14,409 $ (28,085 ) Net unrealized gains/(losses) included in net income $ (66 ) (a) $ (1,250 ) (c) $ 1,259 (a) $ (3,892 ) (e) Nine Months Ended September 30, 2018 (Dollars in thousands) Trading Interest-only-strips- AFS Loans held- Net derivative Balance on January 1, 2018 $ 2,151 $ 1,270 $ 18,926 $ (5,645 ) Total net gains/(losses) included in: Net income 173 840 986 (4,904 ) Purchases — — 62 (28,100 ) (f) Sales — (11,227 ) — — Settlements (732 ) — (3,382 ) 4,437 Net transfers into/(out of) Level 3 — 19,478 (b) (356 ) (d) — Balance on September 30, 2018 $ 1,592 $ 10,361 $ 16,236 $ (34,212 ) Net unrealized gains/(losses) included in net income $ 59 (a) $ (279 ) (c) $ 986 (a) $ (4,904 ) (e) (a) Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income. (b) Transfers into interest-only strips - AFS level 3 measured on a recurring basis reflect movements from loans held-for-sale (Level 2 nonrecurring). (c) Primarily included in fixed income on the Consolidated Condensed Statements of Income. (d) Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into OREO (level 3 nonrecurring). (e) Included in Other expense. (f) Increase associated with Visa-related derivatives executed in third quarter 2018, see Note 15 - Derivatives for additional discussion.
Nonrecurring Fair Value Measurements	For assets measured at fair value on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at September 30, 2019 , and December 31, 2018 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at September 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 448,166 $ 945 $ 449,111 Loans held-for-sale—first mortgages — — 519 519 Loans, net of unearned income (a) — — 54,092 54,092 OREO (b) — — 17,816 17,816 Other assets (c) — — 13,777 13,777 Carrying value at December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—other consumer $ — $ 18,712 $ — $ 18,712 Loans held-for-sale—SBAs and USDA — 577,280 1,011 578,291 Loans held-for-sale—first mortgages — — 541 541 Loans, net of unearned income (a) — — 48,259 48,259 OREO (b) — — 22,387 22,387 Other assets (c) — — 8,845 8,845 (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c)
Gains/(losses) on Nonrecurring Fair Value Measurements	For assets measured on a nonrecurring basis which were still held on the Consolidated Condensed Statements of Condition at period end, the following table provides information about the fair value adjustments recorded during the three and nine months ended September 30, 2019 and 2018 : Net gains/(losses) Net gains/(losses) (Dollars in thousands) 2019 2018 2019 2018 Loans held-for-sale—SBAs and USDA $ (977 ) $ (1,213 ) $ (1,208 ) $ (2,464 ) Loans held-for-sale—first mortgages 2 3 27 7 Loans, net of unearned income (a) (15,559 ) 363 (16,036 ) 1,020 OREO (b) (282 ) (776 ) (256 ) (2,198 ) Other assets (c) (407 ) (1,370 ) (1,349 ) (3,586 ) $ (17,223 ) $ (2,993 ) $ (18,822 ) $ (7,221 ) (a) Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents losses of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method.
Schedule Of Unobservable Inputs Utilized In Determining The Fair Value Of Level 3 Recurring And Non-Recurring Measurements	The following tables provide information regarding the unobservable inputs utilized in determining the fair value of Level 3 recurring and non-recurring measurements as of September 30, 2019 and December 31, 2018 : (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 15,249 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 15% - 16% 15% Loans held-for-sale - residential real estate 14,928 Discounted cash flow Prepayment speeds - First mortgage 3% - 14% 4.3% Prepayment speeds - HELOC 0% - 12% 7.6% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 4% - 23% of UPB 14.8% Loss severity trends - HELOC 0% - 72% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 945 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 28,085 Discounted cash flow Visa covered litigation resolution amount $5.4 billion - $6.0 billion $5.8 billion Probability of resolution scenarios 10% - 50% 16% Time until resolution 18 - 42 months 32 months Loans, net of unearned 54,092 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 17,816 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 13,777 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value. (Dollars in thousands) Values Utilized Level 3 Class Fair Value at Valuation Techniques Unobservable Input Range Weighted Average (d) Available-for-sale- securities SBA-interest only strips $ 9,902 Discounted cash flow Constant prepayment rate 11% - 12% 11% Bond equivalent yield 14% - 15% 14% Loans held-for-sale - residential real estate 16,815 Discounted cash flow Prepayment speeds - First mortgage 2% - 10% 3% Prepayment speeds - HELOC 5% - 12% 7.5% Foreclosure losses 50% - 66% 63% Loss severity trends - First mortgage 2% - 25% of UPB 17% Loss severity trends - HELOC 50% - 100% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 1,011 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 31,540 Discounted cash flow Visa covered litigation resolution amount $5.0 billion - $5.8 billion $5.6 billion Probability of resolution scenarios 10% - 25% 23% Time until resolution 18 - 48 months 36 months Loans, net of unearned 48,259 Appraisals from comparable properties Marketability adjustments for specific properties 0% - 10% of appraisal NM Other collateral valuations Borrowing base certificates adjustment 20% - 50% of gross value NM Financial Statements/Auction values adjustment 0% - 25% of reported value NM OREO (b) 22,387 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 8,845 Discounted cash flow Adjustments to current sales yields for specific properties 0% - 15% adjustment to yield NM Appraisals from comparable properties Marketability adjustments for specific properties 0% - 25% of appraisal NM NM - Not meaningful. (a) Represents carrying value of loans for which adjustments are required to be based on the appraised value of the collateral less estimated costs to sell. Write-downs on these loans are recognized as part of provision for loan losses. (b) Represents the fair value of foreclosed properties that were measured subsequent to their initial classification as OREO. Balance excludes OREO related to government insured mortgages. (c) Represents tax credit investments accounted for under the equity method. (d) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to an instrument's fair value.
Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount	The following tables reflect the differences between the fair value carrying amount of residential real estate loans held-for-sale measured at fair value in accordance with management’s election and the aggregate unpaid principal amount FHN is contractually entitled to receive at maturity. September 30, 2019 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 14,409 $ 20,247 $ (5,838 ) Nonaccrual loans 3,679 6,794 (3,115 ) Loans 90 days or more past due and still accruing — — — December 31, 2018 (Dollars in thousands) Fair value carrying amount Aggregate unpaid principal Fair value carrying amount less aggregate unpaid principal Residential real estate loans held-for-sale reported at fair value: Total loans $ 16,273 $ 23,567 $ (7,294 ) Nonaccrual loans 4,536 8,128 (3,592 ) Loans 90 days or more past due and still accruing 171 281 (110 )
Changes In Fair Value Of Assets And Liabilities Which Fair Value Option Included In Current Period Earnings	Assets and liabilities accounted for under the fair value election are initially measured at fair value with subsequent changes in fair value recognized in earnings. Such changes in the fair value of assets and liabilities for which FHN elected the fair value option are included in current period earnings with classification in the income statement line item reflected in the following table: Three Months Ended Nine Months Ended (Dollars in thousands) 2019 2018 2019 2018 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 443 $ 277 $ 1,259 $ 986
Summary Of Book Value And Estimated Fair Value Of Financial Instruments	The following table summarizes the book value and estimated fair value of financial instruments recorded in the Consolidated Condensed Statements of Condition as of September 30, 2019 : September 30, 2019 Book Value Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets: Loans, net of unearned income and allowance for loan losses Commercial: Commercial, financial and industrial $ 20,179,800 $ — $ — $ 20,373,976 $ 20,373,976 Commercial real estate 4,192,973 — — 4,203,482 4,203,482 Consumer: Consumer real estate 6,040,992 — — 6,100,503 6,100,503 Permanent mortgage 173,630 — — 188,433 188,433 Credit card & other 480,289 — — 484,498 484,498 Total loans, net of unearned income and allowance for loan losses 31,067,684 — — 31,350,892 31,350,892 Short-term financial assets: Interest-bearing cash 364,412 364,412 — — 364,412 Federal funds sold 48,747 — 48,747 — 48,747 Securities purchased under agreements to resell 697,214 — 697,214 — 697,214 Total short-term financial assets 1,110,373 364,412 745,961 — 1,110,373 Trading securities (a) 1,395,043 — 1,393,945 1,098 1,395,043 Loans held-for-sale Mortgage loans (elected fair value) (a) 14,409 — — 14,409 14,409 USDA & SBA loans- LOCOM 449,111 — 452,889 961 453,850 Other consumer loans- LOCOM 5,479 — 5,479 — 5,479 Mortgage loans- LOCOM 85,844 — — 85,844 85,844 Total loans held-for-sale 554,843 — 458,368 101,214 559,582 Securities available-for-sale (a) 4,415,845 — 4,400,596 15,249 4,415,845 Securities held-to-maturity 10,000 — — 9,987 9,987 Derivative assets (a) 250,786 35,518 215,268 — 250,786 Other assets: Tax credit investments 196,451 — — 194,226 194,226 Deferred compensation mutual funds 43,826 43,826 — — 43,826 Equity, mutual funds, and other (b) 226,146 22,442 — 203,704 226,146 Total other assets 466,423 66,268 — 397,930 464,198 Total assets $ 39,270,997 $ 466,198 $ 7,214,138 $ 31,876,370 $ 39,556,706 Liabilities: Defined maturity deposits $ 4,176,267 $ — $ 4,200,490 $ — $ 4,200,490 Trading liabilities (a) 719,777 — 719,777 — 719,777 Short-term financial liabilities: Federal funds purchased 936,837 — 936,837 — 936,837 Securities sold under agreements to repurchase 735,226 — 735,226 — 735,226 Other short-term borrowings 2,276,139 — 2,276,139 — 2,276,139 Total short-term financial liabilities 3,948,202 — 3,948,202 — 3,948,202 Term borrowings: Real estate investment trust-preferred 46,219 — — 47,000 47,000 Term borrowings—new market tax credit investment 2,699 — — 2,696 2,696 Secured borrowings 24,432 — — 24,432 24,432 Junior subordinated debentures 144,259 — — 138,947 138,947 Other long term borrowings 977,487 — 973,506 — 973,506 Total term borrowings 1,195,096 — 973,506 213,075 1,186,581 Derivative liabilities (a) 83,530 33,819 21,626 28,085 83,530 Total liabilities $ 10,122,872 $ 33,819 $ 9,863,601 $ 241,160 $ 10,138,580 (a) Classes are detailed in the recurring and nonrecurring measurement tables. (b) Level 1 primarily consists of mutual funds with readily determinable fair values. Level 3 includes restricted investments in FHLB-Cincinnati stock of $73.0 million and FRB stock of $130.7 million . The following table summarizes the book value and estimated fair value of financial instruments recorded in the Consolidated Statements of Condition as of December 31, 2018 : December 31, 2018 Book Value Fair Value (Dollars in thousands) Level 1 Level 2 Level 3 Total Assets: Loans, net of unearned income and allowance for loan losses Commercial: Commercial, financial and industrial $ 16,415,381 $ — $ — $ 16,438,272 $ 16,438,272 Commercial real estate 3,999,559 — — 3,997,736 3,997,736 Consumer: Consumer real estate 6,223,077 — — 6,194,066 6,194,066 Permanent mortgage 211,448 — — 227,254 227,254 Credit card & other 505,643 — — 507,001 507,001 Total loans, net of unearned income and allowance for loan losses 27,355,108 — — 27,364,329 27,364,329 Short-term financial assets: Interest-bearing cash 1,277,611 1,277,611 — — 1,277,611 Federal funds sold 237,591 — 237,591 — 237,591 Securities purchased under agreements to resell 386,443 — 386,443 — 386,443 Total short-term financial assets 1,901,645 1,277,611 624,034 — 1,901,645 Trading securities (a) 1,448,168 — 1,446,644 1,524 1,448,168 Loans held-for-sale Mortgage loans (elected fair value) (a) 16,273 — — 16,273 16,273 USDA & SBA loans- LOCOM 578,291 — 582,476 1,015 583,491 Other consumer loans- LOCOM 25,134 — 6,422 18,712 25,134 Mortgage loans- LOCOM 59,451 — — 59,451 59,451 Total loans held-for-sale 679,149 — 588,898 95,451 684,349 Securities available-for-sale (a) 4,626,470 — 4,616,568 9,902 4,626,470 Securities held-to-maturity 10,000 — — 9,843 9,843 Derivative assets (a) 81,475 28,826 52,649 — 81,475 Other assets: Tax credit investments 163,300 — — 159,452 159,452 Deferred compensation assets 37,771 37,771 — — 37,771 Equity, mutual funds, and other (b) 240,780 22,248 — 218,532 240,780 Total other assets 441,851 60,019 — 377,984 438,003 Total assets $ 36,543,866 $ 1,366,456 $ 7,328,793 $ 27,859,033 $ 36,554,282 Liabilities: Deposits: Defined maturity $ 4,105,777 $ — $ 4,082,822 $ — $ 4,082,822 Trading liabilities (a) 335,380 — 335,380 — 335,380 Short-term financial liabilities: Federal funds purchased 256,567 — 256,567 — 256,567 Securities sold under agreements to repurchase 762,592 — 762,592 — 762,592 Other short-term borrowings 114,764 — 114,764 — 114,764 Total short-term financial liabilities 1,133,923 — 1,133,923 — 1,133,923 Term borrowings: Real estate investment trust-preferred 46,168 — — 47,000 47,000 Term borrowings—new market tax credit investment 2,699 — — 2,664 2,664 Secured Borrowings 19,588 — — 19,588 19,588 Junior subordinated debentures 143,255 — — 134,266 134,266 Other long term borrowings 959,253 — 960,483 — 960,483 Total term borrowings 1,170,963 — 960,483 203,518 1,164,001 Derivative liabilities (a) 133,713 30,236 71,937 31,540 133,713 Total liabilities $ 6,879,756 $ 30,236 $ 6,584,545 $ 235,058 $ 6,849,839 (a) Classes are detailed in the recurring and nonrecurring measurement tables. (b) Level 1 primarily consists of mutual funds with readily determinable fair values. Level 3 includes restricted investments in FHLB-Cincinnati stock of $87.9 million and FRB stock of $130.7 million . The following table presents the contractual amount and fair value of unfunded loan commitments and standby and other commitments as of September 30, 2019 and December 31, 2018 : Contractual Amount Fair Value (Dollars in thousands) September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Unfunded Commitments: Loan commitments $ 11,397,521 $ 10,884,975 $ 3,187 $ 2,551 Standby and other commitments 430,226 446,958 5,258 5,043

Restructuring, Repositioning,_2

Restructuring, Repositioning, and Efficiency (Tables)	9 Months Ended
	Sep. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring Expense Recognized	Total expense recognized for the three and nine months ended September 30, 2019 is presented in the table below: Dollars in thousands Three Months Ended Nine Months Ended Employee compensation, incentives and benefits $ 1,182 $ 10,244 Professional fees 6,488 15,025 Occupancy (128 ) 761 Other 300 12,632 Total restructuring and repositioning charges $ 7,842 $ 38,662

Financial Information - Narrati

Financial Information - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Jan. 01, 2019
Product Information [Line Items]
Performance obligation, description of timing	one year or less
Operating lease right-of use assets	$ 174,352
Operating lease liabilities	196,012
Non-Interest income
Product Information [Line Items]
Accounts receivable	$ 8,600
Accounting Standards Update 2016-02
Product Information [Line Items]
Operating lease right-of use assets		$ 185,000
Operating lease liabilities		$ 204,000

Financial Information - ASU 201

Financial Information - ASU 2016-02 (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Jan. 01, 2019	Dec. 31, 2018		Sep. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income	$ 31,260,833	[1]		$ 27,535,532	[1]	$ 27,350,214
Premises and equipment, net	451,600			494,041
Other assets	1,912,685			1,802,939
Other liabilities	763,534			580,335
Undivided profits	$ 1,725,846			$ 1,542,408
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income			$ 3,450
Premises and equipment, net			2,718
Other assets			183,884
Other liabilities			(191,010)
Undivided profits			$ 1,011
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Acquisitions and Divestitures -

Acquisitions and Divestitures - Narrative (Details) $ in Thousands	Nov. 08, 2019USD ($)branch	Nov. 04, 2019officestatedirectors	Mar. 23, 2018USD ($)branch	Nov. 30, 2017USD ($)branchshares	Jun. 30, 2018USD ($)shares	Sep. 30, 2019USD ($)	Apr. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Assets						$ 43,717,684		$ 40,832,258
Loans						31,067,684		27,355,108
Deposits						31,944,660		32,682,992
Goodwill						1,432,787		$ 1,432,787	$ 1,409,822	$ 1,386,853
Portion of Sub-prime Auto Loan Portfolios
Business Acquisition [Line Items]
Loans disposed of									$ 120,000
Portion of Sub-prime Auto Loan Portfolios | Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Loans disposed of					$ 120,000
Subprime Consumer Loans | Discontinued Operations, Held-for-sale
Business Acquisition [Line Items]
Loans disposed of							$ 25,000
Apex Bank
Business Acquisition [Line Items]
Number of branches divested | branch			2
Deposits disposed of			$ 30,000
Loans disposed of			$ 2,000
Capital Bank Financial Corp
Business Acquisition [Line Items]
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares				92,042,232
Payments to acquire businesses				$ 423,600	$ 46,000
Business combination, consideration transferred				$ 2,200,000
canceled common shares | shares					2,373,220
Number of bank branches | branch				178
Assets acquired				$ 9,900,000
Loans				7,300,000
Securities available-for-sale				1,200,000
Deposits				8,100,000
Goodwill				$ 1,200,000
Subsequent Event | IBERIABANK DIRECTORS
Business Acquisition [Line Items]
Number of board of directors | directors		8
Subsequent Event | IBERIABANK (IBKC)
Business Acquisition [Line Items]
Conversion price of shares		4.584
Conversion percentage of shares		44.00%
Number of board of directors | directors		17
Subsequent Event | IBERIABANK (IBKC) | FHN DIRECTORS
Business Acquisition [Line Items]
Number of board of directors | directors		9
Subsequent Event | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	30
Loans	$ 410,000
Deposits	$ 2,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Premium Percent	3.40%
IBERIABANK (IBKC)
Business Acquisition [Line Items]
Assets						31,700,000
Loans						23,700,000
Deposits						$ 25,000,000
IBERIABANK (IBKC) | Subsequent Event
Business Acquisition [Line Items]
Number of offices | office		319
Number of states | state		12
NORTH CAROLINA | Subsequent Event | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	20
VIRGINIA | Subsequent Event | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	8
GEORGIA | Subsequent Event | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	2

Acquisitions and Divestitures_2

Acquisitions and Divestitures - Merger and Integration Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Merger and integration expense	$ 8,989	$ 11,349	$ 23,296	$ 85,839
Professional fees
Business Acquisition [Line Items]
Merger and integration expense	3,507	4,593	9,852	19,217
Employee compensation, incentives and benefits
Business Acquisition [Line Items]
Merger and integration expense	1,473	3,112	4,462	12,198
Contract employment and outsourcing
Business Acquisition [Line Items]
Merger and integration expense	223	599	240	3,701
Occupancy
Business Acquisition [Line Items]
Merger and integration expense	(76)	115	1,547	2,374
Miscellaneous expense
Business Acquisition [Line Items]
Merger and integration expense	1,022	1,381	2,170	6,514
All other expense
Business Acquisition [Line Items]
Merger and integration expense	$ 2,840	$ 1,549	$ 5,025	$ 41,835

Investment Securities - Schedul

Investment Securities - Schedule Of FHN's Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 4,350,191
Securities available-for-sale	4,415,845	$ 4,626,470
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	0
Securities held to maturity, gross unrealized losses	(13)	(157)
Securities held to maturity, fair value	9,987	9,843
Securities pledged as collateral	3,700,000	3,800,000
U.S. treasuries
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	100	100
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	0	(2)
Securities available-for-sale	100	98
Government agency issued MBS
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	2,249,973	2,473,687
Securities available for sale, gross unrealized gains	37,204	4,819
Securities available for sale, gross unrealized losses	(2,745)	(58,400)
Securities available-for-sale	2,284,432	2,420,106
Government agency issued CMO
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	1,775,941	2,006,488
Securities available for sale, gross unrealized gains	13,978	888
Securities available for sale, gross unrealized losses	(5,699)	(48,681)
Securities available-for-sale	1,784,220	1,958,695
Other U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	237,414	149,050
Securities available for sale, gross unrealized gains	3,919	809
Securities available for sale, gross unrealized losses	0	(73)
Securities available-for-sale	241,333	149,786
Corporates and other debt
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	40,105	55,383
Securities available for sale, gross unrealized gains	425	388
Securities available for sale, gross unrealized losses	(90)	(461)
Securities available-for-sale	40,440	55,310
States and municipalities
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	46,658	32,473
Securities available for sale, gross unrealized gains	3,435	314
Securities available for sale, gross unrealized losses	(22)	(214)
Securities available-for-sale	50,071	32,573
Securities available-for-sale, excluding interest only strip:
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	4,350,191	4,717,181
Securities available for sale, gross unrealized gains	58,961	7,218
Securities available for sale, gross unrealized losses	(8,556)	(107,831)
Securities available-for-sale	4,400,596	4,616,568
Interest- only strips- AFS
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	15,249	9,902
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	0
Securities held to maturity, gross unrealized losses	(13)	(157)
Securities held to maturity, fair value	$ 9,987	$ 9,843

Investment Securities - Sched_2

Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Held-to-Maturity, Amortized Cost
Within 1 year	$ 0
After 1 year; within 5 years	0
After 5 years; within 10 years	10,000
After 10 years	0
Subtotal	10,000
Government agency issued MBS and CMO	0
Total	10,000	$ 10,000
Held-to-Maturity, Fair Value
Within 1 year	0
After 1 year; within 5 years	0
After 5 years; within 10 years	9,987
After 10 years	0
Subtotal	9,987
Government agency issued MBS and CMO	0
Securities held to maturity, fair value	9,987	9,843
Available-for-Sale, Amortized Cost
Within 1 year	20,161
After 1 year; within 5 years	223,908
After 5 years; within 10 years	755
After 10 years	79,453
Subtotal	324,277
Government agency issued MBS and CMO	4,025,914
Securities available for sale, amortized cost	4,350,191
Available-for-Sale, Fair Value
Within 1 year	20,289
After 1 year; within 5 years	228,037
After 5 years; within 10 years	2,444
After 10 years	96,423
Subtotal	347,193
Government agency issued MBS and CMO	4,068,652
Securities available-for-sale	$ 4,415,845	$ 4,626,470

Investment Securities - Sched_3

Investment Securities - Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Marketable Securities [Abstract]
Gross gains on sales of securities	$ 0	$ 0	$ 0	$ 52
Gross (losses) on sales of securities	0	0	(267)	0
Net gain/(loss) on sales of securities	0	0	(267)	52
Cash proceeds	$ 0	$ 0	$ 182,800	$ 0

Investment Securities - Sched_4

Investment Securities - Schedule Of Investments Within The Available For Sale Portfolio That Had Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Less than 12 months	$ 314,538	$ 960,053
12 months or longer	642,321	3,112,632
Total fair value	956,859	4,072,685
Unrealized Losses
Less than 12 months	(925)	(15,826)
12 months or longer	(7,631)	(92,005)
Total unrealized losses	(8,556)	(107,831)
U.S. treasuries
Schedule of Investments [Line Items]
Less than 12 months	0	0
12 months or longer	100	98
Total fair value	100	98
Unrealized Losses
Less than 12 months	0	0
12 months or longer	0	(2)
Total unrealized losses	0	(2)
Government agency issued MBS
Schedule of Investments [Line Items]
Less than 12 months	78,633	597,008
12 months or longer	219,235	1,537,106
Total fair value	297,868	2,134,114
Unrealized Losses
Less than 12 months	(222)	(12,335)
12 months or longer	(2,523)	(46,065)
Total unrealized losses	(2,745)	(58,400)
Government agency issued CMO
Schedule of Investments [Line Items]
Less than 12 months	234,437	290,863
12 months or longer	397,826	1,560,420
Total fair value	632,263	1,851,283
Unrealized Losses
Less than 12 months	(681)	(2,860)
12 months or longer	(5,018)	(45,821)
Total unrealized losses	(5,699)	(48,681)
Other U.S. government agencies
Schedule of Investments [Line Items]
Less than 12 months		29,776
12 months or longer		0
Total fair value		29,776
Unrealized Losses
Less than 12 months		(73)
12 months or longer		0
Total unrealized losses		(73)
Corporates and other debt
Schedule of Investments [Line Items]
Less than 12 months	0	25,114
12 months or longer	25,160	15,008
Total fair value	25,160	40,122
Unrealized Losses
Less than 12 months	0	(344)
12 months or longer	(90)	(117)
Total unrealized losses	(90)	(461)
States and municipalities
Schedule of Investments [Line Items]
Less than 12 months	1,468	17,292
12 months or longer	0	0
Total fair value	1,468	17,292
Unrealized Losses
Less than 12 months	(22)	(214)
12 months or longer	0	0
Total unrealized losses	$ (22)	$ (214)

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Marketable Securities [Abstract]
Carrying amount of equity investments without a readily determinable fair value	$ 25.1		$ 25.1		$ 21.3
Unrealized gain for equity investments with readily determinable fair values	$ 0.4	$ 1	$ 4.9	$ 2.1

Loans - Schedule Of Loans By Po

Loans - Schedule Of Loans By Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Jun. 30, 2019	Dec. 31, 2018		Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 31,260,833	[1]		$ 27,535,532	[1]	$ 27,350,214
Allowance for loan losses	193,149		$ 192,749	180,424		185,959	$ 185,462	$ 189,555
Total net loans	31,067,684			27,355,108
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	149,755			130,258
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	20,293,930			16,514,328		16,044,145
Allowance for loan losses	114,130		116,096	98,947		100,314	96,834	98,211
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,228,598			4,030,870		4,237,036
Allowance for loan losses	35,625		32,953	31,311		33,915	33,832	28,427
Consumer | Consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,062,829			6,249,516		6,300,983
Allowance for loan losses	21,837		22,857	26,439		28,919	34,155	39,823
Consumer | Permanent mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	182,467			222,448		237,254
Allowance for loan losses	8,837		8,675	11,000		11,098	11,692	13,113
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	493,009			518,370		530,796
Allowance for loan losses	12,720		$ 12,168	12,727		11,713	$ 8,949	$ 9,981
Consumer | Restricted and secured consumer real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 12,400			$ 16,200
Restatement Adjustment | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						(410,000)
Restatement Adjustment | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						$ 410,000
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Concentrations and Rest

Loans - Concentrations and Restrictions (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Consumer | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	20.00%
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	19.00%
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 24,522,528	$ 20,545,198
Commercial | Finance And Insurance Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 2,800,000
Percentage of commercial & industrial loan portfolio	13.00%
Percentage contributed in total loan	9.00%
Commercial | Loans To Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 5,000,000
Percentage of commercial & industrial loan portfolio	25.00%
Percentage contributed in total loan	16.00%
Commercial | Finance Insurance And Loans To Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of commercial & industrial loan portfolio	38.00%

Loans - Certain Loans Acquired

Loans - Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 11,600	$ 14,474	$ 13,375	$ 15,623
Accretion	(1,440)	(2,183)	(4,586)	(6,927)
Adjustment for payoffs	(369)	(840)	(1,084)	(2,559)
Adjustment for charge-offs	(59)	(122)	(314)	(1,046)
Adjustment for pool excess recovery	0	(123)	0	(123)
Increase/(decrease) in accretable yield	2,416	4,062	5,080	10,721
Disposal	(4)	0	(4)	(240)
Other	(35)	0	(358)	(181)
Balance, end of period	$ 12,109	$ 15,268	$ 12,109	$ 15,268

Loans - Schedule Of Acquired Pu

Loans - Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	$ 2,165	$ 3,398	$ 2,165	$ 3,398	$ 4,000
Provision for loan losses	15,000	2,000	37,000	1,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	901		901		2,823
Commercial, financial, and industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	901	1,904	901	1,904
Provision for loan losses	13,387	3,819	38,879	5,249
Commercial Real Estate (a) | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	0	22	0	22
Provision for loan losses	2,860	(175)	5,088	5,421
Consumer Real Estate | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	1,217	1,130	1,217	1,130
Provision for loan losses	(3,898)	(7,737)	(11,109)	(19,840)
Credit Card and Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance - purchased credit-impaired loans	47	342	47	342
Provision for loan losses	3,193	7,226	8,428	12,960
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses	(300)	$ 900	1,500	$ 3,500
Carrying value	61,524		61,524		86,420
Unpaid balance	67,127		67,127		98,190
PCI Loans | Commercial, financial, and industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	28,777		28,777		38,873
Unpaid balance	30,478		30,478		44,259
PCI Loans | Commercial Real Estate (a) | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	6,596		6,596		15,197
Unpaid balance	7,268		7,268		17,232
PCI Loans | Consumer Real Estate | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	25,514		25,514		30,723
Unpaid balance	28,591		28,591		34,820
PCI Loans | Credit Card and Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	637		637		1,627
Unpaid balance	$ 790		$ 790		$ 1,879

Loans - Information By Class Re

Loans - Information By Class Related To Individually Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Recorded Investment
Recorded Investment	$ 260,580		$ 260,580		$ 240,533
Unpaid Principal Balance
Unpaid Principal Balance	304,687		304,687		269,468
Related Allowance	25,598		25,598		28,814
Average Recorded Investment
Average Recorded Investment	280,655	$ 242,913	275,478	$ 246,566
Interest Income Recognized
Interest Income Recognized	1,420	1,610	4,485	4,824
Commercial
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	65,010		65,010		44,491
Impaired loans with related allowance recorded, Recorded investment	22,233		22,233		6,067
Recorded Investment	87,243		87,243		50,558
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	80,854		80,854		46,976
Impaired loans with related allowance recorded, Unpaid principal balance	27,428		27,428		6,879
Unpaid Principal Balance	108,282		108,282		53,855
Related Allowance	4,427		4,427		1,074
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	84,876	25,920	76,548	23,301
Impaired loans with related allowance recorded, Average recorded investment	17,539	19,534	13,992	19,510
Average Recorded Investment	102,415	45,454	90,540	42,811
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	176	215	560	598
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	4	5	13	5
Interest Income Recognized	180	220	573	603
Consumer
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	14,447		14,447		16,560
Impaired loans with related allowance recorded, Recorded investment	158,890		158,890		173,415
Recorded Investment	173,337		173,337		189,975
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	23,051		23,051		27,447
Impaired loans with related allowance recorded, Unpaid principal balance	173,354		173,354		188,166
Unpaid Principal Balance	196,405		196,405		215,613
Related Allowance	21,171		21,171		27,740
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	14,642	16,923	15,416	17,548
Impaired loans with related allowance recorded, Average recorded investment	163,598	180,536	169,522	186,207
Average Recorded Investment	178,240	197,459	184,938	203,755
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	1,240	1,390	3,912	4,221
Interest Income Recognized	1,240	1,390	3,912	4,221
Commercial, financial, and industrial | Commercial | General C&I
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	63,070		63,070		42,902
Impaired loans with related allowance recorded, Recorded investment	19,508		19,508		2,802
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	78,914		78,914		45,387
Impaired loans with related allowance recorded, Unpaid principal balance	23,728		23,728		2,802
Related Allowance	4,287		4,287		149
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	64,558	23,740	62,553	21,506
Impaired loans with related allowance recorded, Average recorded investment	14,620	16,375	10,892	16,038
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	173	203	530	561
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	4	0	4	0
Commercial, financial, and industrial | Commercial | Loans To Mortgage Companies
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	18,628	0	12,419	0
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Commercial, financial, and industrial | Commercial | TRUPs
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment	2,725		2,725		2,888
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance	3,700		3,700		3,700
Related Allowance	140		140		925
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	2,750	2,960	2,806	3,004
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0	0	0
Commercial real estate | Commercial | Income CRE
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	1,940		1,940		1,589
Impaired loans with related allowance recorded, Recorded investment	0		0		377
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	1,940		1,940		1,589
Impaired loans with related allowance recorded, Unpaid principal balance	0		0		377
Related Allowance	0		0		0
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	1,690	1,680	1,576	1,379
Impaired loans with related allowance recorded, Average recorded investment	169	199	294	335
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	3	12	30	37
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	5	9	5
Commercial real estate | Commercial | Residential CRE
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	0	500	0	416
Impaired loans with related allowance recorded, Average recorded investment	0	0	0	133
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0	0	0
Consumer Real Estate | Consumer | HELOC
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	6,614		6,614		8,645
Impaired loans with related allowance recorded, Recorded investment	58,924		58,924		66,482
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	12,579		12,579		16,648
Impaired loans with related allowance recorded, Unpaid principal balance	62,514		62,514		69,610
Related Allowance	7,457		7,457		11,241
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	6,495	8,343	6,852	8,878
Impaired loans with related allowance recorded, Average recorded investment	60,312	68,913	62,650	70,452
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	449	556	1,475	1,711
Consumer Real Estate | Consumer | R/E Installment Loans
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	5,042		5,042		4,314
Impaired loans with related allowance recorded, Recorded investment	37,735		37,735		38,993
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	5,853		5,853		4,796
Impaired loans with related allowance recorded, Unpaid principal balance	38,714		38,714		39,851
Related Allowance	4,901		4,901		6,743
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	5,304	4,631	5,384	4,032
Impaired loans with related allowance recorded, Average recorded investment	39,924	39,147	41,475	40,512
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	250	246	792	764
Permanent Mortgage | Consumer
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment	2,791		2,791		3,601
Impaired loans with related allowance recorded, Recorded investment	61,511		61,511		67,245
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance	4,619		4,619		6,003
Impaired loans with related allowance recorded, Unpaid principal balance	71,406		71,406		78,010
Related Allowance	8,363		8,363		9,419
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	2,843	3,949	3,180	4,638
Impaired loans with related allowance recorded, Average recorded investment	62,652	71,898	64,700	74,617
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	537	585	1,632	1,737
Credit Card and Other | Consumer
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment	720		720		695
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance	720		720		695
Related Allowance	450		450		$ 337
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	710	578	697	626
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	$ 4	$ 3	$ 13	$ 9

Loans - Asset Quality Indicator

Loans - Asset Quality Indicators (Details) - Commercial	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 24,522,528,000	$ 20,545,198,000
PD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lowest expected default probability	1
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	14
Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	15
Minimum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Minimum | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Minimum | Loan Reassessed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 1,000,000
Minimum | PD Grade 13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans	$ 500,000
Minimum | LGD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Maximum | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Maximum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
Maximum | LGD Grade 12
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12

Loans - Balances Of Commercial

Loans - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Jun. 30, 2019	Dec. 31, 2018		Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 31,260,833	[1]		$ 27,535,532	[1]	$ 27,350,214
Loans and Leases Receivable, Allowance	193,149		$ 192,749	180,424		185,959	$ 185,462	$ 189,555
Total loans collectively evaluated for impairment	30,936,563					26,989,204
Total loans individually evaluated for impairment	260,580					251,166
Purchased credit-impaired loans	63,690					109,844
Allowance - collectively evaluated for impairment	165,386					148,168
Allowance - individually evaluated for impairment	25,598					34,393
Allowance - purchased credit-impaired loans	$ 2,165			$ 4,000		3,398
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent of total commercial loans (percent)	100.00%			100.00%
Loans and Leases Receivable, Allowance	$ 149,755			$ 130,258
Total loans collectively evaluated for impairment	24,399,011			20,437,747
Total loans individually evaluated for impairment	87,243			50,558
Purchased credit-impaired loans	36,274			56,893
Total commercial loans	$ 24,522,528			$ 20,545,198
Percent of loan collectively evaluated for impairment (percent)	100.00%			100.00%
Percent of loan individually evaluated for impairment (percent)	0.00%			0.00%
Percent of loan purchased-credit impaired (percent)	0.00%			0.00%
Allowance - collectively evaluated for impairment	$ 144,427			$ 126,361
Allowance - individually evaluated for impairment	4,427			1,074
Allowance - purchased credit-impaired loans	901			2,823
Commercial Loan P D Grade One | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 654,030			$ 622,763
Percent of total commercial loans (percent)	3.00%			3.00%
Loans and Leases Receivable, Allowance	$ 68			$ 100
Commercial Loan P D Grade Two | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 848,057			$ 837,493
Percent of total commercial loans (percent)	3.00%			4.00%
Loans and Leases Receivable, Allowance	$ 197			$ 274
Commercial Loan P D Grade Three | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 2,193,302			$ 1,789,074
Percent of total commercial loans (percent)	9.00%			9.00%
Loans and Leases Receivable, Allowance	$ 283			$ 315
Commercial Loan P D Grade Four | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 2,665,339			$ 2,224,417
Percent of total commercial loans (percent)	11.00%			11.00%
Loans and Leases Receivable, Allowance	$ 813			$ 686
Commercial Loan P D Grade Five | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 3,805,324			$ 3,088,258
Percent of total commercial loans (percent)	16.00%			15.00%
Loans and Leases Receivable, Allowance	$ 9,398			$ 8,919
Commercial Loan P D Grade Six | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 4,661,292			$ 2,824,473
Percent of total commercial loans (percent)	19.00%			14.00%
Loans and Leases Receivable, Allowance	$ 12,139			$ 8,141
Commercial Loan P D Grade Seven | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 4,037,608			$ 3,363,877
Percent of total commercial loans (percent)	17.00%			16.00%
Loans and Leases Receivable, Allowance	$ 20,443			$ 16,906
Commercial Loan P D Grade Eight | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 2,018,741			$ 1,676,558
Percent of total commercial loans (percent)	8.00%			8.00%
Loans and Leases Receivable, Allowance	$ 20,488			$ 18,545
Commercial Loan P D Grade Nine | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 1,314,050			$ 2,099,294
Percent of total commercial loans (percent)	5.00%			10.00%
Loans and Leases Receivable, Allowance	$ 15,027			$ 15,454
Commercial Loan P D Grade Ten | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 711,970			$ 587,305
Percent of total commercial loans (percent)	3.00%			3.00%
Loans and Leases Receivable, Allowance	$ 9,732			$ 8,675
Commercial Loan P D Grade Eleven | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 534,261			$ 379,741
Percent of total commercial loans (percent)	2.00%			2.00%
Loans and Leases Receivable, Allowance	$ 11,114			$ 7,973
Commercial Loan P D Grade Twelve | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 314,873			$ 342,537
Percent of total commercial loans (percent)	1.00%			2.00%
Loans and Leases Receivable, Allowance	$ 9,233			$ 6,972
Commercial Loan P D Grade Thirteen | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 378,898			$ 347,432
Percent of total commercial loans (percent)	2.00%			2.00%
Loans and Leases Receivable, Allowance	$ 11,906			$ 10,094
Commercial Loan P D Grade Fourteen Fifteen Sixteen | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 261,266			$ 254,525
Percent of total commercial loans (percent)	1.00%			1.00%
Loans and Leases Receivable, Allowance	$ 23,586			$ 23,307
C&I (a) | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	20,293,930			16,514,328		16,044,145
Loans and Leases Receivable, Allowance	114,130		116,096	98,947		100,314	96,834	98,211
Total loans collectively evaluated for impairment	20,178,826					15,940,853
Total loans individually evaluated for impairment	85,303					53,549
Purchased credit-impaired loans	29,801					49,743
Allowance - collectively evaluated for impairment	108,802					92,382
Allowance - individually evaluated for impairment	4,427					6,028
Allowance - purchased credit-impaired loans	901					1,904
C&I (a) | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade				14,198,499
Total loans collectively evaluated for impairment	14,925,704			14,152,795
Total loans individually evaluated for impairment	82,578			45,704
Purchased credit-impaired loans	29,801			41,730
Total commercial loans	15,038,083			14,240,229
C&I (a) | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	5,037,551			2,023,746
Total loans collectively evaluated for impairment	5,037,551			2,023,746
Total loans individually evaluated for impairment	0			0
Purchased credit-impaired loans	0			0
Total commercial loans	5,037,551			2,023,746
C&I (a) | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	218,296			250,353
Total loans collectively evaluated for impairment	215,571			247,465
Total loans individually evaluated for impairment	2,725			2,888
Purchased credit-impaired loans	0			0
Total commercial loans	218,296			250,353
Valuation allowance	19,100			20,200
C&I (a) | Commercial Loan P D Grade One | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	651,636			610,177
C&I (a) | Commercial Loan P D Grade One | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade One | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Two | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	798,897			835,776
C&I (a) | Commercial Loan P D Grade Two | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Two | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Three | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	654,023			782,362
C&I (a) | Commercial Loan P D Grade Three | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,127,283			716,971
C&I (a) | Commercial Loan P D Grade Three | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	3,314			0
C&I (a) | Commercial Loan P D Grade Four | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,219,024			1,223,092
C&I (a) | Commercial Loan P D Grade Four | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	859,310			394,862
C&I (a) | Commercial Loan P D Grade Four | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	35,786			43,220
C&I (a) | Commercial Loan P D Grade Five | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,004,530			1,920,034
C&I (a) | Commercial Loan P D Grade Five | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	683,685			277,814
C&I (a) | Commercial Loan P D Grade Five | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	80,765			77,751
C&I (a) | Commercial Loan P D Grade Six | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,349,020			1,722,136
C&I (a) | Commercial Loan P D Grade Six | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,515,178			365,341
C&I (a) | Commercial Loan P D Grade Six | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	33,815			45,609
C&I (a) | Commercial Loan P D Grade Seven | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,835,023			2,690,784
C&I (a) | Commercial Loan P D Grade Seven | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	505,068			96,603
C&I (a) | Commercial Loan P D Grade Seven | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	11,446			11,446
C&I (a) | Commercial Loan P D Grade Eight | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,536,468			1,337,113
C&I (a) | Commercial Loan P D Grade Eight | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	210,719			53,224
C&I (a) | Commercial Loan P D Grade Eight | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Nine | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	992,076			1,472,852
C&I (a) | Commercial Loan P D Grade Nine | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	123,013			96,292
C&I (a) | Commercial Loan P D Grade Nine | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	26,123			45,117
C&I (a) | Commercial Loan P D Grade Ten | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	626,518			490,795
C&I (a) | Commercial Loan P D Grade Ten | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	7,439			13,260
C&I (a) | Commercial Loan P D Grade Ten | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	18,536			18,536
C&I (a) | Commercial Loan P D Grade Eleven | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	469,096			311,967
C&I (a) | Commercial Loan P D Grade Eleven | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Eleven | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Twelve | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	267,147			244,867
C&I (a) | Commercial Loan P D Grade Twelve | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	5,856			9,379
C&I (a) | Commercial Loan P D Grade Twelve | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Thirteen | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	294,924			285,987
C&I (a) | Commercial Loan P D Grade Thirteen | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Thirteen | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	5,786			5,786
C&I (a) | Commercial Loan P D Grade Fourteen Fifteen Sixteen | General C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	227,322			224,853
C&I (a) | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
C&I (a) | Commercial Loan P D Grade Fourteen Fifteen Sixteen | TRUPs | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
Commercial real estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	4,228,598			4,030,870		4,237,036
Loans and Leases Receivable, Allowance	35,625		$ 32,953	31,311		33,915	$ 33,832	$ 28,427
Total loans collectively evaluated for impairment	4,220,185					4,211,337
Total loans individually evaluated for impairment	1,940					2,503
Purchased credit-impaired loans	6,473					23,196
Allowance - collectively evaluated for impairment	35,625					33,893
Allowance - individually evaluated for impairment	0					0
Allowance - purchased credit-impaired loans	0					$ 22
Commercial real estate | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	4,107,971			3,879,814
Total loans collectively evaluated for impairment	4,106,031			3,877,848
Total loans individually evaluated for impairment	1,940			1,966
Purchased credit-impaired loans	5,082			12,730
Total commercial loans	4,113,053			3,892,544
Commercial real estate | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	114,154			135,893
Total loans collectively evaluated for impairment	114,154			135,893
Total loans individually evaluated for impairment	0			0
Purchased credit-impaired loans	1,391			2,433
Total commercial loans	115,545			138,326
Commercial real estate | Commercial Loan P D Grade One | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,394			12,586
Commercial real estate | Commercial Loan P D Grade One | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	0			0
Commercial real estate | Commercial Loan P D Grade Two | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	49,116			1,688
Commercial real estate | Commercial Loan P D Grade Two | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	44			29
Commercial real estate | Commercial Loan P D Grade Three | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	407,538			289,594
Commercial real estate | Commercial Loan P D Grade Three | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,144			147
Commercial real estate | Commercial Loan P D Grade Four | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	550,707			563,243
Commercial real estate | Commercial Loan P D Grade Four | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	512			0
Commercial real estate | Commercial Loan P D Grade Five | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,026,006			798,509
Commercial real estate | Commercial Loan P D Grade Five | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	10,338			14,150
Commercial real estate | Commercial Loan P D Grade Six | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	741,795			657,628
Commercial real estate | Commercial Loan P D Grade Six | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	21,484			33,759
Commercial real estate | Commercial Loan P D Grade Seven | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	651,383			538,909
Commercial real estate | Commercial Loan P D Grade Seven | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	34,688			26,135
Commercial real estate | Commercial Loan P D Grade Eight | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	249,301			265,901
Commercial real estate | Commercial Loan P D Grade Eight | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	22,253			20,320
Commercial real estate | Commercial Loan P D Grade Nine | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	158,079			455,184
Commercial real estate | Commercial Loan P D Grade Nine | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	14,759			29,849
Commercial real estate | Commercial Loan P D Grade Ten | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	56,241			60,803
Commercial real estate | Commercial Loan P D Grade Ten | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	3,236			3,911
Commercial real estate | Commercial Loan P D Grade Eleven | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	62,676			66,986
Commercial real estate | Commercial Loan P D Grade Eleven | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	2,489			788
Commercial real estate | Commercial Loan P D Grade Twelve | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	40,484			82,574
Commercial real estate | Commercial Loan P D Grade Twelve | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,386			5,717
Commercial real estate | Commercial Loan P D Grade Thirteen | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	76,879			55,408
Commercial real estate | Commercial Loan P D Grade Thirteen | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	1,309			251
Commercial real estate | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	33,432			28,835
Commercial real estate | Commercial Loan P D Grade Fourteen Fifteen Sixteen | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan, disaggregated by PD grade	$ 512			$ 837
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Loans by FICO Score, Co

Loans - Loans by FICO Score, Consumer (Details) - Consumer	Sep. 30, 2019	Dec. 31, 2018
HELOC | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	61.90%	61.40%
HELOC | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.80%	8.50%
HELOC | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.30%	7.60%
HELOC | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	10.50%	10.90%
HELOC | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	5.10%	5.10%
HELOC | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	6.40%	6.50%
HELOC | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.00%	100.00%
R/E Installment Loans | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	72.90%	71.30%
R/E Installment Loans | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.10%	8.80%
R/E Installment Loans | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	6.20%	7.00%
R/E Installment Loans | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.40%	7.60%
R/E Installment Loans | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	2.90%	2.80%
R/E Installment Loans | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	2.50%	2.50%
R/E Installment Loans | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.00%	100.00%
Permanent mortgage | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	47.90%	51.80%
Permanent mortgage | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	7.90%	7.60%
Permanent mortgage | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	11.00%	10.60%
Permanent mortgage | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	16.70%	14.70%
Permanent mortgage | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.20%	6.50%
Permanent mortgage | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	8.30%	8.80%
Permanent mortgage | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average refreshed FICO score (percent)	100.00%	100.00%

Loans - Accruing And Non-Accrui

Loans - Accruing And Non-Accruing Loans By Class (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Dec. 31, 2018		Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	$ 31,260,833	[1]	$ 27,535,532	[1]	$ 27,350,214
Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	31,017,663		27,312,619
Total Accruing	31,088,338		27,387,783
Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	49,563		42,703
Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	21,112		32,461
Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	110,874		101,879
Total Non-Accruing	172,495		147,749
Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	10,430		11,831
Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	51,191		34,039
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	20,293,930		16,514,328		16,044,145
Commercial | Commercial, financial, and industrial | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	20,195,281		16,463,919
Total Accruing	20,217,226		16,474,552
Commercial | Commercial, financial, and industrial | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	19,752		8,858
Commercial | Commercial, financial, and industrial | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,193		1,775
Commercial | Commercial, financial, and industrial | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	43,877		26,325
Total Non-Accruing	76,704		39,776
Commercial | Commercial, financial, and industrial | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	960		5,537
Commercial | Commercial, financial, and industrial | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	31,867		7,914
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	15,008,282
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	14,914,990
Total Accruing	14,934,303
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	18,979
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	334
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	43,877
Total Non-Accruing	73,979
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	960
Commercial | Commercial, financial, and industrial | General C I, Excluding Purchase Credit-Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	29,142
Commercial | Commercial, financial, and industrial | General C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income			14,198,499
Commercial | Commercial, financial, and industrial | General C&I | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current			14,153,275
Total Accruing			14,161,611
Commercial | Commercial, financial, and industrial | General C&I | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due			8,234
Commercial | Commercial, financial, and industrial | General C&I | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due			102
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current			26,325
Total Non-Accruing			36,888
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due			5,537
Commercial | Commercial, financial, and industrial | General C&I | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due			5,026
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	5,037,551		2,023,746
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	5,037,551		2,023,746
Total Accruing	5,037,551		2,023,746
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	218,296		250,353
Valuation allowance	19,100		20,200
Commercial | Commercial, financial, and industrial | TRUPs | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	215,571		247,465
Total Accruing	215,571		247,465
Commercial | Commercial, financial, and industrial | TRUPs | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	2,725		2,888
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | TRUPs | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,725		2,888
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	29,801		41,730
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	27,169		39,433
Total Accruing	29,801		41,730
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	773		624
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,859		1,673
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	4,228,598		4,030,870		4,237,036
Commercial | Commercial real estate | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	4,225,062		4,025,398
Total Accruing	4,226,661		4,027,879
Commercial | Commercial real estate | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,557		729
Commercial | Commercial real estate | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	42		1,752
Commercial | Commercial real estate | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		62
Total Non-Accruing	1,937		2,991
Commercial | Commercial real estate | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,937		2,929
Commercial | Commercial real estate | Income CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	4,107,971		3,879,814
Commercial | Commercial real estate | Income CRE | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	4,104,826		3,876,229
Total Accruing	4,106,034		3,876,855
Commercial | Commercial real estate | Income CRE | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,208		626
Commercial | Commercial real estate | Income CRE | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Income CRE | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		30
Total Non-Accruing	1,937		2,959
Commercial | Commercial real estate | Income CRE | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Income CRE | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,937		2,929
Commercial | Commercial real estate | Residential CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	114,154		135,893
Commercial | Commercial real estate | Residential CRE | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	114,154		135,861
Total Accruing	114,154		135,861
Commercial | Commercial real estate | Residential CRE | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Residential CRE | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Residential CRE | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		32
Total Non-Accruing	0		32
Commercial | Commercial real estate | Residential CRE | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | Residential CRE | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	6,473		15,163
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	6,082		13,308
Total Accruing	6,473		15,163
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	349		103
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	42		1,752
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	6,062,829		6,249,516		6,300,983
Consumer | Consumer Real Estate | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	5,948,072		6,120,405
Total Accruing	5,983,606		6,166,868
Consumer | Consumer Real Estate | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	19,664		24,217
Consumer | Consumer Real Estate | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	15,870		22,246
Consumer | Consumer Real Estate | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	58,524		64,155
Total Non-Accruing	79,223		82,648
Consumer | Consumer Real Estate | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,021		5,238
Consumer | Consumer Real Estate | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	11,678		13,255
Consumer | Consumer Real Estate | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	1,343,794		1,526,537
Consumer | Consumer Real Estate | HELOC | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	1,267,603		1,443,651
Total Accruing	1,283,970		1,465,433
Consumer | Consumer Real Estate | HELOC | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	9,694		11,653
Consumer | Consumer Real Estate | HELOC | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	6,673		10,129
Consumer | Consumer Real Estate | HELOC | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	45,456		49,009
Total Non-Accruing	59,824		61,104
Consumer | Consumer Real Estate | HELOC | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	6,601		3,314
Consumer | Consumer Real Estate | HELOC | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	7,767		8,781
Consumer | Consumer Real Estate | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	4,692,303		4,691,169
Consumer | Consumer Real Estate | R/E Installment Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	4,659,224		4,652,658
Total Accruing	4,672,904		4,669,625
Consumer | Consumer Real Estate | R/E Installment Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	8,032		10,470
Consumer | Consumer Real Estate | R/E Installment Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	5,648		6,497
Consumer | Consumer Real Estate | R/E Installment Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	13,068		15,146
Total Non-Accruing	19,399		21,544
Consumer | Consumer Real Estate | R/E Installment Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,420		1,924
Consumer | Consumer Real Estate | R/E Installment Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,911		4,474
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	26,732		31,810
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	21,245		24,096
Total Accruing	26,732		31,810
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,938		2,094
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,549		5,620
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Consumer Real Estate | RE Installment Purchase Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	182,467		222,448		237,254
Consumer | Permanent Mortgage | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	161,198		193,591
Total Accruing	168,180		200,738
Consumer | Permanent Mortgage | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	5,338		2,585
Consumer | Permanent Mortgage | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,644		4,562
Consumer | Permanent Mortgage | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	8,401		11,227
Total Non-Accruing	14,287		21,710
Consumer | Permanent Mortgage | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	373		996
Consumer | Permanent Mortgage | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	5,513		9,487
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	493,009		518,370		$ 530,796
Consumer | Credit Card and Other | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	488,050		509,306
Total Accruing	492,665		517,746
Consumer | Credit Card and Other | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,252		6,314
Consumer | Credit Card and Other | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,363		2,126
Consumer | Credit Card and Other | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	72		110
Total Non-Accruing	344		624
Consumer | Credit Card and Other | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	76		60
Consumer | Credit Card and Other | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	196		454
Consumer | Credit Card and Other | Credit Card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	203,087		191,345
Consumer | Credit Card and Other | Credit Card | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	200,696		188,009
Total Accruing	203,087		191,345
Consumer | Credit Card and Other | Credit Card | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,264		2,133
Consumer | Credit Card and Other | Credit Card | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,127		1,203
Consumer | Credit Card and Other | Credit Card | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Credit Card and Other | Credit Card | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Credit Card | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Other Consumer Loans Class
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	289,238		325,271
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	286,983		320,551
Total Accruing	288,894		324,647
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,728		3,570
Consumer | Credit Card and Other | Other Consumer Loans Class | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	183		526
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	72		110
Total Non-Accruing	344		624
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	76		60
Consumer | Credit Card and Other | Other Consumer Loans Class | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	196		454
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	684		1,754
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	371		746
Total Accruing	684		1,754
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	260		611
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	53		397
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	0		0
Total Non-Accruing	0		0
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0		0
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | Non-Accruing | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 0		$ 0
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructuring Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings loans	$ 220	$ 228.2
Allowance For TDRs To Recorded Investment Of TDRs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan loss reserves	$ 21.2	$ 27.7
Ratio of the allowance for loan losses to loans	10.00%	12.00%
Loans Held For Sale, Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings loans	$ 52.6	$ 57.8
Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRS Maturities	30 years
Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR, reduction of interest rate by increment, basis points	0.25%
Modified interest rate increase	1.00%
TDRS Maturities	40 years
Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forbearance agreements time period	6 months
Minimum | Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate	2.00%
Modified interest rate time period	5 years
Maximum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forbearance agreements time period	12 months
Maximum | Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate time period	5 years
Heloc And Real Estate Installment Classes | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR, reduction of interest rate by increment, basis points	0.25%
Modified interest rate increase	2.00%
Heloc And Real Estate Installment Classes | Minimum | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate	1.00%
Modified interest rate time period	5 years
Heloc And Real Estate Installment Classes | Maximum | Consumer | Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate time period	5 years
Credit Card | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit card workout program, granted rate reduction	0.00%
Credit Card | Minimum | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment reductions, time period	6 months
Credit Card | Maximum | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment reductions, time period	1 year
Credit card workout program, term extension	5 years

Loans - Schedule Of Troubled De

Loans - Schedule Of Troubled Debt Restructurings Occurring During The Year (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)loan	Sep. 30, 2018USD ($)loan	Sep. 30, 2019USD ($)loan	Sep. 30, 2018USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	65	91	211	254
Pre-Modification Outstanding Recorded Investment	$ 3,605	$ 31,716	$ 32,239	$ 42,946
Post-Modification Outstanding Recorded Investment	$ 3,670	$ 31,337	$ 32,141	$ 42,208
Commercial | C&I (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	1	1	4	9
Pre-Modification Outstanding Recorded Investment	$ 62	$ 25,591	$ 14,179	$ 27,639
Post-Modification Outstanding Recorded Investment	$ 59	$ 25,439	$ 14,101	$ 27,190
Commercial | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	1	0	4
Pre-Modification Outstanding Recorded Investment	$ 0	$ 442	$ 0	$ 643
Post-Modification Outstanding Recorded Investment	$ 0	$ 442	$ 0	$ 637
Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	29	77	134	156
Pre-Modification Outstanding Recorded Investment	$ 3,409	$ 5,618	$ 16,274	$ 13,585
Post-Modification Outstanding Recorded Investment	$ 3,485	$ 5,397	$ 16,242	$ 13,318
Consumer | Permanent Mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	0	5	5
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 1,469	$ 709
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	$ 1,498	$ 713
Consumer | Credit Card and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	35	12	68	80
Pre-Modification Outstanding Recorded Investment	$ 134	$ 65	$ 317	$ 370
Post-Modification Outstanding Recorded Investment	$ 126	$ 59	$ 300	$ 350
General C&I | Commercial | C&I (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	1	1	4	9
Pre-Modification Outstanding Recorded Investment	$ 62	$ 25,591	$ 14,179	$ 27,639
Post-Modification Outstanding Recorded Investment	$ 59	$ 25,439	$ 14,101	$ 27,190
Income CRE | Commercial | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	1	0	4
Pre-Modification Outstanding Recorded Investment	$ 0	$ 442	$ 0	$ 643
Post-Modification Outstanding Recorded Investment	$ 0	$ 442	$ 0	$ 637
HELOC | Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	13	15	57	79
Pre-Modification Outstanding Recorded Investment	$ 1,638	$ 1,057	$ 7,013	$ 7,641
Post-Modification Outstanding Recorded Investment	$ 1,631	$ 1,041	$ 6,950	$ 7,580
R/E Installment Loans | Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	16	62	77	77
Pre-Modification Outstanding Recorded Investment	$ 1,771	$ 4,561	$ 9,261	$ 5,944
Post-Modification Outstanding Recorded Investment	$ 1,854	$ 4,356	$ 9,292	$ 5,738

Loans - Schedule Of Troubled _2

Loans - Schedule Of Troubled Debt Restructurings Within The Previous 12 Months (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)loan	Sep. 30, 2018USD ($)loan	Sep. 30, 2019USD ($)loan	Sep. 30, 2018USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	11	18	29	52
Recorded Investment | $	$ 151	$ 711	$ 320	$ 1,719
Commercial | C&I (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	1	0	2
Recorded Investment | $	$ 0	$ 321	$ 0	$ 579
Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	2	1	5	6
Recorded Investment | $	$ 99	$ 40	$ 236	$ 229
Consumer | Permanent mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	1	3	1	5
Recorded Investment | $	$ 7	$ 294	$ 7	$ 699
Consumer | Credit Card and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	8	13	23	39
Recorded Investment | $	$ 45	$ 56	$ 77	$ 212
General C&I | Commercial | C&I (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	1	0	2
Recorded Investment | $	$ 0	$ 321	$ 0	$ 579
HELOC | Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	2	1	4	5
Recorded Investment | $	$ 99	$ 40	$ 198	$ 204
R/E Installment Loans | Consumer | Consumer Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	0	1	1
Recorded Investment | $	$ 0	$ 0	$ 38	$ 25

Allowance for Loan Losses (Deta

Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019		Sep. 30, 2018	Sep. 30, 2019		Sep. 30, 2018	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 192,749		$ 185,462	$ 180,424		$ 189,555
Charge-offs	(24,337)		(9,482)	(47,087)		(27,973)
Recoveries	9,737		7,979	22,812		23,377
Provision/(provision credit) for loan losses	15,000		2,000	37,000		1,000
Ending Balance	193,149		185,959	193,149		185,959
Allowance - individually evaluated for impairment	25,598		34,393	25,598		34,393
Allowance - collectively evaluated for impairment	165,386		148,168	165,386		148,168
Allowance - purchased credit-impaired loans	2,165		3,398	2,165		3,398	$ 4,000
Individually evaluated for impairment	260,580		251,166	260,580		251,166
Collectively evaluated for impairment	30,936,563		26,989,204	30,936,563		26,989,204
Purchased credit-impaired loans	63,690		109,844	63,690		109,844
Total loans, net of unearned income	(31,260,833)	[1]	(27,350,214)	(31,260,833)	[1]	(27,350,214)	(27,535,532)	[1]
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				130,258
Ending Balance	149,755			149,755
Allowance - individually evaluated for impairment	4,427			4,427			1,074
Allowance - collectively evaluated for impairment	144,427			144,427			126,361
Allowance - purchased credit-impaired loans	901			901			2,823
Individually evaluated for impairment	87,243			87,243			50,558
Collectively evaluated for impairment	24,399,011			24,399,011			20,437,747
Purchased credit-impaired loans	36,274			36,274			56,893
Commercial | C&I (a)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	116,096		96,834	98,947		98,211
Charge-offs	(18,598)		(1,391)	(28,289)		(6,753)
Recoveries	3,245		1,052	4,593		3,607
Provision/(provision credit) for loan losses	13,387		3,819	38,879		5,249
Ending Balance	114,130		100,314	114,130		100,314
Allowance - individually evaluated for impairment	4,427		6,028	4,427		6,028
Allowance - collectively evaluated for impairment	108,802		92,382	108,802		92,382
Allowance - purchased credit-impaired loans	901		1,904	901		1,904
Individually evaluated for impairment	85,303		53,549	85,303		53,549
Collectively evaluated for impairment	20,178,826		15,940,853	20,178,826		15,940,853
Purchased credit-impaired loans	29,801		49,743	29,801		49,743
Total loans, net of unearned income	(20,293,930)		(16,044,145)	(20,293,930)		(16,044,145)	(16,514,328)
Commercial | Commercial Real Estate (a)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	32,953		33,832	31,311		28,427
Charge-offs	(369)		(9)	(924)		(281)
Recoveries	181		267	150		348
Provision/(provision credit) for loan losses	2,860		(175)	5,088		5,421
Ending Balance	35,625		33,915	35,625		33,915
Allowance - individually evaluated for impairment	0		0	0		0
Allowance - collectively evaluated for impairment	35,625		33,893	35,625		33,893
Allowance - purchased credit-impaired loans	0		22	0		22
Individually evaluated for impairment	1,940		2,503	1,940		2,503
Collectively evaluated for impairment	4,220,185		4,211,337	4,220,185		4,211,337
Purchased credit-impaired loans	6,473		23,196	6,473		23,196
Total loans, net of unearned income	(4,228,598)		(4,237,036)	(4,228,598)		(4,237,036)	(4,030,870)
Consumer | Consumer Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	22,857		34,155	26,439		39,823
Charge-offs	(1,471)		(2,801)	(5,809)		(6,193)
Recoveries	4,349		5,302	12,316		15,129
Provision/(provision credit) for loan losses	(3,898)		(7,737)	(11,109)		(19,840)
Ending Balance	21,837		28,919	21,837		28,919
Allowance - individually evaluated for impairment	12,358		18,076	12,358		18,076
Allowance - collectively evaluated for impairment	8,262		9,713	8,262		9,713
Allowance - purchased credit-impaired loans	1,217		1,130	1,217		1,130
Individually evaluated for impairment	108,315		119,729	108,315		119,729
Collectively evaluated for impairment	5,927,782		6,146,920	5,927,782		6,146,920
Purchased credit-impaired loans	26,732		34,334	26,732		34,334
Total loans, net of unearned income	(6,062,829)		(6,300,983)	(6,062,829)		(6,300,983)	(6,249,516)
Consumer | Permanent Mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	8,675		11,692	11,000		13,113
Charge-offs	(2)		(15)	(182)		(475)
Recoveries	706		554	2,305		1,250
Provision/(provision credit) for loan losses	(542)		(1,133)	(4,286)		(2,790)
Ending Balance	8,837		11,098	8,837		11,098
Allowance - individually evaluated for impairment	8,363		9,996	8,363		9,996
Allowance - collectively evaluated for impairment	474		1,102	474		1,102
Allowance - purchased credit-impaired loans	0		0	0		0
Individually evaluated for impairment	64,302		74,833	64,302		74,833
Collectively evaluated for impairment	118,165		162,421	118,165		162,421
Purchased credit-impaired loans	0		0	0		0
Total loans, net of unearned income	(182,467)		(237,254)	(182,467)		(237,254)	(222,448)
Consumer | Credit Card and Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	12,168		8,949	12,727		9,981
Charge-offs	(3,897)		(5,266)	(11,883)		(14,271)
Recoveries	1,256		804	3,448		3,043
Provision/(provision credit) for loan losses	3,193		7,226	8,428		12,960
Ending Balance	12,720		11,713	12,720		11,713
Allowance - individually evaluated for impairment	450		293	450		293
Allowance - collectively evaluated for impairment	12,223		11,078	12,223		11,078
Allowance - purchased credit-impaired loans	47		342	47		342
Individually evaluated for impairment	720		552	720		552
Collectively evaluated for impairment	491,605		527,673	491,605		527,673
Purchased credit-impaired loans	684		2,571	684		2,571
Total loans, net of unearned income	$ (493,009)		(530,796)	$ (493,009)		(530,796)	$ (518,370)
Restatement Adjustment | Commercial | C&I (a)
Allowance for Loan and Lease Losses [Roll Forward]
Total loans, net of unearned income			410,000			410,000
Restatement Adjustment | Commercial | Commercial Real Estate (a)
Allowance for Loan and Lease Losses [Roll Forward]
Total loans, net of unearned income			$ (410,000)			$ (410,000)
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Intangible Assets - Summary Of

Intangible Assets - Summary Of Intangible Assets and Accumulated Amortization Included In The Consolidated Statements of Condition (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Intangible Assets [Line Items]
Gross Carrying Amount	$ 240,637	$ 240,637
Accumulated Amortization	(104,231)	(85,603)
Net Carrying Value	136,406	155,034
Core deposit intangibles
Intangible Assets [Line Items]
Gross Carrying Amount	157,150	157,150
Accumulated Amortization	(42,566)	(28,150)
Net Carrying Value	114,584	129,000
Customer relationships
Intangible Assets [Line Items]
Gross Carrying Amount	77,865	77,865
Accumulated Amortization	(59,015)	(55,597)
Net Carrying Value	18,850	22,268
Other
Intangible Assets [Line Items]
Gross Carrying Amount	5,622	5,622
Accumulated Amortization	(2,650)	(1,856)
Net Carrying Value	2,972	3,766
State banking licenses
Intangible Assets [Line Items]
Indefinite-lived intangible assets, excluding goodwill	$ 300	$ 300

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 6,200,000	$ 6,500,000	$ 18,600,000	$ 19,400,000
Goodwill [Line Items]
Goodwill	1,432,787,000	$ 1,409,822,000	1,432,787,000	$ 1,409,822,000	$ 1,432,787,000	$ 1,386,853,000
Non-Strategic
Goodwill [Line Items]
Gross goodwill	200,000,000		200,000,000		200,000,000
Accumulated impairments	114,100,000		114,100,000		114,100,000
Accumulated divestiture related write-offs	85,900,000		85,900,000		85,900,000
Goodwill	$ 0		$ 0		$ 0

Intangible Assets - Schedule Of

Intangible Assets - Schedule Of Estimated Aggregate Amortization Expense for Intangible Assets (Details) $ in Thousands	Sep. 30, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2019	$ 6,208
2020	21,159
2021	19,547
2022	17,412
2023	16,117
2024	$ 14,679

Intangible Assets - Summary O_2

Intangible Assets - Summary Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Goodwill [Roll Forward]
Goodwill, Beginning balance	$ 1,432,787	$ 1,386,853
Additions	0	22,969
Goodwill, Ending balance	1,432,787	1,409,822
Regional Banking
Goodwill [Roll Forward]
Goodwill, Beginning balance	1,289,819	1,243,885
Additions	0	22,969
Goodwill, Ending balance	1,289,819	1,266,854
Fixed Income
Goodwill [Roll Forward]
Goodwill, Beginning balance	142,968	142,968
Additions	0	0
Goodwill, Ending balance	$ 142,968	$ 142,968

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) $ in Thousands	Sep. 30, 2019USD ($)
Leases [Abstract]
Operating lease right-of use assets	$ 174,352
Finance lease right-of use assets	634
Total Lease Right-of Use Assets	174,986
Operating lease liabilities	196,012
Finance lease liabilities	1,280
Total Lease Liabilities	$ 197,292

Leases - Weighted Average Remai

Leases - Weighted Average Remaining Lease Terms and Discount Rate (Details)	Sep. 30, 2019
Weighted Average Remaining Lease Terms
Weighed average remaining lease terms - operating leases	12 years 3 days
Weighed average remaining lease terms - finance leases	6 years 8 months 1 day
Weighted Average Discount Rate
Weighted average discount rate - operating leases	3.47%
Weighted average discount rate - finance leases	9.96%

Leases - Lease Expense and Othe

Leases - Lease Expense and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Lease cost
Operating lease cost	$ 5,989	$ 18,573
Finance lease cost:
Amortization of right-of-use assets	23	71
Interest on lease liabilities	33	98
Short-term lease cost	(10)	70
Sublease income	(97)	(289)
Total lease cost	5,938	18,523
Other information
(Gain)/loss on right-of-use asset impairment-Operating leases	0	2,551
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	5,279	16,626
Operating cash flows from finance leases	32	98
Financing cash flows from finance leases	32	94
Right-of-use assets obtained in exchange for new lease obligations:
Right-of-use assets obtained in exchange for lease obligations - operating leases	574	5,358
Right-of-use assets obtained in exchange for lease obligations - finance leases	$ 0	$ 0

Leases - Maturity of Lease Liab

Leases - Maturity of Lease Liabilities (Details) $ in Thousands	Sep. 30, 2019USD ($)
Leases [Abstract]
2019	$ 6,261
2020	24,854
2021	22,451
2022	21,202
2023	20,240
2024 and after	147,800
Total future minimum lease payments	242,808
Less lease liability interest	(45,516)
Present value of net future minimum lease payments	$ 197,292

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Sep. 30, 2019USD ($)
Leases [Abstract]
Undiscounted amount of leases that have not yet commenced	$ 33.5

Leases - Maturity of Leases Pri

Leases - Maturity of Leases Prior to Adoption of ASC 842 (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 27,524
2020	24,722
2021	20,954
2022	16,518
2023	13,174
2024 and after	42,370
Total minimum lease payments	$ 145,262

Other Income And Other Expens_2

Other Income And Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
All other income and commissions:
Other service charges	$ 5,738		$ 3,758	$ 15,231	$ 11,609
ATM and interchange fees	4,507		3,263	12,010	9,943
Mortgage banking	2,019		2,533	6,477	7,510
Dividend income	1,556		2,757	5,678	8,130
Letter of credit fees	1,400		1,307	4,021	3,851
Electronic banking fees	1,288		1,309	3,826	3,741
Insurance commissions	577		396	1,767	1,629
Deferred compensation	472		1,458	7,884	2,900
Gain/(loss) on extinguishment of debt	(6)		(1)	(7)	(1)
Other	9,299		5,009	20,261	14,244
Total	26,850		21,789	77,148	63,556
All other expense:
Litigation and regulatory matters	(11,534)		1,541	(3,317)	(609)
Customer relations	3,165		1,328	6,304	3,749
Travel and entertainment	2,849		3,988	8,467	12,102
Other insurance and taxes	2,475		2,761	7,664	8,178
Supplies	1,668		1,635	4,814	5,458
Miscellaneous loan costs	1,017		543	2,901	2,720
Employee training and dues	1,003		1,682	3,711	5,310
Non-service components of net periodic pension and post-retirement cost	986		1,585	1,977	3,619
Tax credit investments	407		1,370	1,349	3,586
OREO	342		1,256	1	2,174
Other	14,231		11,094	48,169	64,527
Total	39,677		25,701	88,674	112,032
Non-Strategic
All other income and commissions:
Total	$ 819		$ 863	2,398	$ 1,177
All other expense:
Litigation and regulatory matters		$ (8,300)		$ 8,300

Components of Other Comprehen_3

Components of Other Comprehensive Income/(loss) - Schedule of Changes in AOCI (Details) - USD ($) $ in Thousands		3 Months Ended												9 Months Ended
		Sep. 30, 2019		Jun. 30, 2019		Mar. 31, 2019		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018		Sep. 30, 2019		Sep. 30, 2018		Jan. 01, 2019		Jan. 01, 2018		Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, adjusted																						$ 4,580,488
Balance, beginning of period		$ 4,926,081		$ 4,846,521		$ 4,785,380		$ 4,549,749		$ 4,572,528		$ 4,580,488		$ 4,785,380		$ 4,580,488
Beginning balance, as adjusted																		$ 4,784,369		$ 4,580,555
Net unrealized gains/(losses)		18,744						(28,441)						126,862		(121,134)
Amounts reclassified from AOCI		3,091						2,906						9,100		6,521
Other comprehensive income/(loss)		21,835		58,662		55,465		(25,535)		(22,029)		(67,049)		135,962		(114,613)
Balance, end of period		4,996,043		4,926,081		4,846,521		4,741,931		4,549,749		4,572,528		4,996,043		4,741,931
Securities AFS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, adjusted	[1]																					(26,834)
Balance, beginning of period		21,071				(75,736)		(107,476)						(75,736)
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12																						(5)
Beginning balance, as adjusted																						(26,839)
Net unrealized gains/(losses)		16,889						(25,924)						113,495		(106,522)
Amounts reclassified from AOCI		0						0						201		(39)
Other comprehensive income/(loss)		16,889						(25,924)						113,696		(106,561)
Balance, end of period		37,960		21,071				(133,400)		(107,476)				37,960		(133,400)
Cash Flow Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, adjusted	[1]																					(7,764)
Balance, beginning of period		2,184				(12,112)		(19,757)						(12,112)
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12																						(206)
Beginning balance, as adjusted																						(7,970)
Net unrealized gains/(losses)		1,855						(2,517)						13,367		(14,612)
Amounts reclassified from AOCI		989						771						3,773		1,079
Other comprehensive income/(loss)		2,844						(1,746)						17,140		(13,533)
Balance, end of period		5,028		2,184				(21,503)		(19,757)				5,028		(21,503)
Pension and Post-retirement Plans
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, adjusted	[1]																					(288,227)
Balance, beginning of period		(285,744)				(288,768)		(284,881)						(288,768)
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12																						0
Beginning balance, as adjusted																						(288,227)
Net unrealized gains/(losses)		0						0						0		0
Amounts reclassified from AOCI		2,102						2,135						5,126		5,481
Other comprehensive income/(loss)		2,102						2,135						5,126		5,481
Balance, end of period		(283,642)		(285,744)				(282,746)		(284,881)				(283,642)		(282,746)
Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, adjusted	[1]																					(322,825)
Balance, beginning of period		(262,489)	[2]	(321,151)	[2]	(376,616)	[2]	(412,114)	[1]	(390,085)	[1]	(265,279)	[1]	(376,616)	[2]	(265,279)	[1]
Adjustment to reflect adoption of ASU 2016-01 and ASU 2017-12																						(211)
Beginning balance, as adjusted																		$ (376,616)	[2]	$ (323,036)	[1]	$ (323,036)
Other comprehensive income/(loss)		21,835	[2]	58,662	[2]	55,465	[2]	(25,535)	[1]	(22,029)	[1]	(67,049)	[1]
Balance, end of period		$ (240,654)	[2]	$ (262,489)	[2]	$ (321,151)	[2]	$ (437,649)	[1]	$ (412,114)	[1]	$ (390,085)	[1]	$ (240,654)	[2]	$ (437,649)	[1]
[1]	Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.
[2]	Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.

Components of Other Comprehen_4

Components of Other Comprehensive Income/(loss) - Schedule of Reclassification from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Debt securities gains/(losses), net	$ 0	$ 0	$ (267)	$ 52
Provision/(benefit) for income taxes	35,796	83,925	97,321	133,553
Amounts reclassified from AOCI	3,091	2,906	9,100	6,521
Interest and fees on loans	356,371	331,000	1,040,421	954,467
All other expense (Note 8)	39,677	25,701	88,674	112,032
Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	0	0	201	(39)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	989	771	3,773	1,079
Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	2,102	2,135	5,126	5,481
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	3,091	2,906	9,100	6,521
Reclassification out of Accumulated Other Comprehensive Income | Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Debt securities gains/(losses), net	0	0	267	(52)
Provision/(benefit) for income taxes	0	0	(66)	13
Amounts reclassified from AOCI	0	0	201	(39)
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision/(benefit) for income taxes	(324)	(253)	(1,239)	(354)
Amounts reclassified from AOCI	989	771	3,773	1,079
Interest and fees on loans	1,313	1,024	5,012	1,433
Reclassification out of Accumulated Other Comprehensive Income | Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	2,102	2,135	5,126	5,481
All other expense (Note 8)	2,792	2,836	6,809	7,280
Reclassification from AOCI, current period, tax	$ (690)	$ (701)	$ (1,683)	$ (1,799)

Earnings Per Share - Schedule O

Earnings Per Share - Schedule Of Reconciliation Of Net Income/(Loss) to Net Income/(Loss) Available to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Net income/(loss)	$ 113,943	$ 113,742	$ 103,405	$ 274,716	$ 85,992	$ 94,994	$ 331,090	$ 455,702
Net income attributable to noncontrolling interest	2,883			2,883			8,555	8,555
Net income/(loss) attributable to controlling interest	111,060			271,833			322,535	447,147
Preferred stock dividends	1,550	$ 1,550	$ 1,550	1,550	$ 1,550	$ 1,550	4,650	4,650
Net income/(loss) available to common shareholders	$ 109,510			$ 270,283			$ 317,885	$ 442,497
Weighted average common shares outstanding - basic (in shares)	311,888			324,406			314,442	325,341
Effect of dilutive securities (in shares)	1,917			2,846			1,959	3,304
Weighted average common shares outstanding - diluted (in shares)	313,805			327,252			316,401	328,645
Net income/(loss) per share available to common shareholders (in dollars per share)	$ 0.35			$ 0.83			$ 1.01	$ 1.36
Diluted income/(loss) per share available to common shareholders (in dollars per share)	$ 0.35			$ 0.83			$ 1	$ 1.35

Earnings Per Share - Schedule_2

Earnings Per Share - Schedule Of Anti-Dilutive Options and Awards (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average exercise price of stock options excluded from the calculation of diluted EPS (in dollars per share)	$ 21.21	$ 23.67	$ 21.36	$ 24.43
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	1,883	2,251	2,413	2,316
Other Equity Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded from the calculation of diluted EPS (in shares)	2,094	1,605	1,815	538

Contingencies And Other Discl_2

Contingencies And Other Disclosures (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Estimated litigation liability	$ 15.4
Accrued losses on loan repurchase exposure	$ 17.2	$ 32.3

Pension, Savings, And Other E_3

Pension, Savings, And Other Employee Benefits - Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2019USD ($)pension_plan	Sep. 30, 2019USD ($)pension_plan	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Defined Benefit Plan Disclosure [Line Items]
Pension plan contribution		$ (509)	$ 0
Defined benefit plan, expected contributions by employer remainder of year	$ 5,200	$ 5,200
Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Employer investment in qualified defined contribution plan		100.00%
Maximum percent of employee pre-tax contributions that may be matched by the Company (percent)		6.00%
Qualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Estimated social security benefits age		65 years
Nonqualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Pension plan contribution				$ 5,800
Capital Bank Financial Corp | Qualified Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Number of additional qualified pension plans | pension_plan	2	2
Defined benefit plan, benefit obligation				17,100
Defined benefit plan, fair value of plan assets				$ 16,500
Pension plan contribution	$ 500

Pension, Savings, And Other E_4

Pension, Savings, And Other Employee Benefits - Schedule Of Components Of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7	$ 11	$ 23	$ 31
Interest cost	7,505	6,935	22,655	20,908
Expected return on plan assets	(9,335)	(8,222)	(27,681)	(24,673)
Actuarial (gain)/loss	2,546	3,164	7,416	9,076
Net periodic benefit cost/(credit)	723	1,888	2,413	5,342
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	23	33	71	100
Interest cost	358	328	1,060	982
Expected return on plan assets	(314)	(268)	(852)	(806)
Actuarial (gain)/loss	(112)	(108)	(346)	(290)
Net periodic benefit cost/(credit)	$ (45)	$ (15)	$ (67)	$ (14)

Business Segment Information -

Business Segment Information - Amounts Of Consolidated Revenue, Expense, Tax And Assets (Details) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Sep. 30, 2019USD ($)segment	Sep. 30, 2018USD ($)
Segment Reporting, Measurement Disclosures [Abstract]
Number of operating segments | segment							4
Segment Reporting Information [Line Items]
Net interest income	$ 300,676			$ 305,700			$ 898,794	$ 917,805
Provision/(provision credit) for loan losses	15,000			2,000			37,000	1,000
Noninterest income	171,735			348,972			470,773	612,514
Noninterest expense	307,672			294,031			904,156	940,064
Income/(loss) before income taxes	149,739			358,641			428,411	589,255
Provision/(benefit) for income taxes	35,796			83,925			97,321	133,553
Net income/(loss)	113,943	$ 113,742	$ 103,405	274,716	$ 85,992	$ 94,994	331,090	455,702
Average assets	41,940,901			40,077,033			41,359,574	40,199,487
Expenses associated with rebranding initiatives	3,100						12,200
Regional Banking
Segment Reporting Information [Line Items]
Net interest income	302,370			301,099			885,622	899,183
Provision/(provision credit) for loan losses	20,472			7,205			51,690	16,155
Noninterest income	85,776			80,705			240,281	241,760
Noninterest expense	193,211			207,549			585,947	620,261
Income/(loss) before income taxes	174,463			167,050			488,266	504,527
Provision/(benefit) for income taxes	41,762			39,195			115,129	118,582
Net income/(loss)	132,701			127,855			373,137	385,945
Average assets	31,626,870			28,551,247			30,224,875	28,339,571
Fixed Income
Segment Reporting Information [Line Items]
Net interest income	5,309			9,054			18,811	26,742
Noninterest income	77,809			41,124			197,238	125,091
Noninterest expense	67,787			46,561			174,331	142,857
Income/(loss) before income taxes	15,331			3,617			41,718	8,976
Provision/(benefit) for income taxes	3,656			719			9,834	1,689
Net income/(loss)	11,675			2,898			31,884	7,287
Average assets	2,882,316			3,246,120			2,952,766	3,322,576
Corporate
Segment Reporting Information [Line Items]
Net interest income	(13,225)			(15,462)			(28,062)	(48,835)
Noninterest income	7,359			222,620			30,111	240,674
Noninterest expense	41,993			33,561			137,867	154,779
Income/(loss) before income taxes	(47,859)			173,597			(135,818)	37,060
Provision/(benefit) for income taxes	(11,550)			40,458			(36,105)	3,719
Net income/(loss)	(36,309)			133,139			(99,713)	33,341
Average assets	6,430,822			6,907,970			7,094,650	6,995,043
Non-Strategic
Segment Reporting Information [Line Items]
Net interest income	6,222			11,009			22,423	40,715
Provision/(provision credit) for loan losses	(5,472)			(5,205)			(14,690)	(15,155)
Noninterest income	791			4,523			3,143	4,989
Noninterest expense	4,681			6,360			6,011	22,167
Income/(loss) before income taxes	7,804			14,377			34,245	38,692
Provision/(benefit) for income taxes	1,928			3,553			8,463	9,563
Net income/(loss)	5,876			10,824			25,782	29,129
Average assets	$ 1,000,893			1,371,696			$ 1,087,283	1,542,297
Visa Class B Shares
Segment Reporting Information [Line Items]
Gain on sale of investments				$ 212,900				$ 212,900

Business Segment Information _2

Business Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Fixed income	$ 77,645	$ 44,813	$ 197,808	$ 128,016
Gain On Sale Of Held To Maturity Loans			1,105	(3,777)
Deposit transactions and cash management	34,379	35,792	98,374	107,859
Brokerage, management fees and commissions	14,157	14,200	40,910	41,423
Trust services and investment management	7,163	7,438	22,077	22,847
Bankcard income	7,017	7,744	20,324	21,734
Bank-owned life insurance (BOLI)	4,427	4,337	13,955	14,103
Debt securities gains/(losses), net	0	0	(267)	52
Equity securities gains/(losses), net	97	212,859	444	212,924
All other income and commissions (Note 8)	26,850	21,789	77,148	63,556
Total noninterest income	171,735	348,972	470,773	612,514
Gains on the sales of buildings			(20,453)	2,469
Regional Banking
Disaggregation of Revenue [Line Items]
Fixed income	57	102	120	314
Deposit transactions and cash management	32,583	33,989	93,195	103,219
Brokerage, management fees and commissions	14,157	14,199	40,904	41,422
Trust services and investment management	7,190	7,453	22,148	22,891
Bankcard income	7,028	7,865	20,661	21,696
Bank-owned life insurance (BOLI)	0	0	0	0
Debt securities gains/(losses), net	0	0	0	0
Equity securities gains/(losses), net	0	0	0	0
All other income and commissions (Note 8)	24,761	17,097	63,253	52,218
Total noninterest income	85,776	80,705	240,281	241,760
Fixed Income
Disaggregation of Revenue [Line Items]
Fixed income	77,588	40,938	196,582	123,929
Deposit transactions and cash management	0	3	4	9
Brokerage, management fees and commissions	0	0	0	0
Trust services and investment management	0	0	0	0
Bankcard income	11	0	11	0
Bank-owned life insurance (BOLI)	0	0	0	0
Debt securities gains/(losses), net	0	0	0	0
Equity securities gains/(losses), net	0	0	0	0
All other income and commissions (Note 8)	210	183	641	1,153
Total noninterest income	77,809	41,124	197,238	125,091
Corporate
Disaggregation of Revenue [Line Items]
Fixed income	0	(5)	0	(5)
Deposit transactions and cash management	1,739	1,741	5,009	4,467
Brokerage, management fees and commissions	0	0	0	0
Trust services and investment management	(27)	(15)	(71)	(44)
Bankcard income	63	57	185	169
Bank-owned life insurance (BOLI)	4,427	4,337	13,955	14,103
Debt securities gains/(losses), net	0	0	(267)	52
Equity securities gains/(losses), net	97	212,859	444	212,924
All other income and commissions (Note 8)	1,060	3,646	10,856	9,008
Total noninterest income	7,359	222,620	30,111	240,674
Gains on the sales of buildings				4,100
Non-Strategic
Disaggregation of Revenue [Line Items]
Fixed income	0	3,778	1,106	3,778
Gain On Sale Of Held To Maturity Loans		3,800		3,800
Deposit transactions and cash management	57	59	166	164
Brokerage, management fees and commissions	0	1	6	1
Trust services and investment management	0	0	0	0
Bankcard income	(85)	(178)	(533)	(131)
Bank-owned life insurance (BOLI)	0	0	0	0
Debt securities gains/(losses), net	0	0	0	0
Equity securities gains/(losses), net	0	0	0	0
All other income and commissions (Note 8)	819	863	2,398	1,177
Total noninterest income	791	4,523	3,143	4,989
Underwriting, Portfolio Advisory, and Other Noninterest Income
Disaggregation of Revenue [Line Items]
Fixed income	$ 9,200	8,400	$ 23,600	24,000
Visa Class B Shares
Disaggregation of Revenue [Line Items]
Gain on sale of investments		$ 212,900		$ 212,900

Variable Interest Entities - Su

Variable Interest Entities - Summary Of VIE Consolidated By FHN (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Jun. 30, 2019	Dec. 31, 2018		Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Assets:
Cash and due from banks	$ 749,719			$ 781,291
Loans, net of unearned income	31,260,833	[1]		27,535,532	[1]	$ 27,350,214
Less: Allowance for loan losses	193,149		$ 192,749	180,424		$ 185,959	$ 185,462	$ 189,555
Total net loans	31,067,684			27,355,108
Total assets	1,912,685			1,802,939
Total assets	43,717,684			40,832,258
Liabilities:
Term borrowings	1,195,096			1,170,963
Other liabilities	763,534			580,335
Total liabilities	38,721,641			36,046,878
On-Balance Sheet Consumer Loan Securitization
Assets:
Cash and due from banks	0			0
Loans, net of unearned income	12,448			16,213
Less: Allowance for loan losses	0			0
Total net loans	12,448			16,213
Total assets	24			35
Total assets	12,472			16,248
Liabilities:
Term borrowings	401			2,981
Other liabilities	0			0
Total liabilities	401			2,981
Rabbi Trusts Used for Deferred Compensation Plans
Assets:
Total assets	87,612			78,446
Total assets	87,612			78,446
Liabilities:
Other liabilities	66,051			56,700
Total liabilities	$ 66,051			$ 56,700
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Variable Interest Entities [Abstract]
Income (loss) from affordable housing projects, equity method investments	$ (0.3)	$ (1.2)	$ (0.9)	$ (3.1)

Variable Interest Entities - _2

Variable Interest Entities - Summary of the Impact of Qualifying LIHTC Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Low income housing tax credits
Variable Interest Entity [Line Items]
Amortization of qualifying LIHTC investments	$ 4,436	$ 1,547	$ 12,721	$ 6,094
Affordable Housing Tax Credits and Other Tax Benefits	(3,607)	(2,584)	(10,758)	(7,681)
Other tax benefits related to qualifying LIHTC investments
Variable Interest Entity [Line Items]
Affordable Housing Tax Credits and Other Tax Benefits	$ (1,751)	$ (1,412)	$ (4,970)	$ (2,996)

Variable Interest Entities - _3

Variable Interest Entities - Summary Of VIE Not Consolidated By FHN (Details) - USD ($) $ in Thousands	Sep. 30, 2019		Dec. 31, 2018		Sep. 30, 2018
Variable Interest Entity [Line Items]
Loans, net of unearned income	$ 31,260,833	[1]	$ 27,535,532	[1]	$ 27,350,214
Trading securities	1,395,043		1,448,168
Term borrowings	1,195,096		1,170,963
Securities available-for-sale	4,415,845		4,626,470
Low Income Housing Partnerships
Variable Interest Entity [Line Items]
Maximum Loss Exposure	183,975		156,056
Liability Recognized	96,637		80,427
Maximum loss exposure, contractual funding commitments	96,600		80,400
Low Income Housing Partnerships | Other Assets
Variable Interest Entity [Line Items]
Maximum loss exposure, current investments	87,300		75,600
Other Tax Credit Investments
Variable Interest Entity [Line Items]
Maximum Loss Exposure	9,226		3,619
Liability Recognized	0		0
Other Tax Credit Investments | Other Assets
Variable Interest Entity [Line Items]
Maximum loss exposure, current investments	2,700		2,700
Small Issuer Trust Preferred Holdings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	237,422		270,585
Liability Recognized	0		0
On Balance Sheet Trust Preferred Securitization
Variable Interest Entity [Line Items]
Maximum Loss Exposure	33,384		37,532
Liability Recognized	80,790		76,642
Loans, net of unearned income	112,500		112,500
Trading securities	1,700		1,700
Term borrowings	80,800		76,600
Proprietary & Agency Residential Mortgage Securitizations
Variable Interest Entity [Line Items]
Maximum Loss Exposure	1,098		1,524
Liability Recognized	0		0
Holdings Of Agency Mortgage Backed Securities
Variable Interest Entity [Line Items]
Maximum Loss Exposure	4,762,162		4,842,630
Liability Recognized	0		0
Trading securities	700,000		500,000
Securities available-for-sale	4,100,000		4,400,000
Commercial Loan Troubled Debt Restructurings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	47,940		40,590
Liability Recognized	0		0
Maximum loss exposure, contractual funding commitments	1,200		2,300
Loans, net of unearned income	46,700		38,200
Sale Leaseback Transaction
Variable Interest Entity [Line Items]
Maximum Loss Exposure	18,170		16,327
Liability Recognized	0		0
Proprietary Trust Preferred Issuances
Variable Interest Entity [Line Items]
Maximum Loss Exposure	0		0
Liability Recognized	$ 167,014		$ 167,014
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Millions	Nov. 01, 2019	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total trading revenues		$ 63.6	$ 34.3			$ 162.7	$ 102.3
Cash flow hedge length of time					5 years
Hedged amount of foreign currency denominated loans		21.3				21.3		$ 11
Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)					$ 250
Notional				$ 650
Visa Class B Shares
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities related to sale		28.1				28.1		31.5
Additional Derivative Agreements | Derivative Instruments With Adjustable Collateral Posting Thresholds
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds		92.3				92.3		15
Net fair value of derivative liabilities with adjustable posting thresholds		3.3				3.3		34.9
Collateral received		165.4				165.4		80.2
Securities posted collateral		21.6				21.6		13.3
Additional Derivative Agreements | Derivative Instruments With Accelerated Termination Provisions
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds		92.3				92.3		19
Net fair value of derivative liabilities with adjustable posting thresholds		7.2				7.2		33.2
Collateral received		165.4				165.4		84.5
Securities posted collateral		26.1				26.1		15.2
Minimum | Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term of contract				3 years
Maximum | Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term of contract				7 years
Counterparties
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash receivables		127.3				127.3		76
Collateral cash payables		55.7				55.7		$ 34
Senior Subordinated Notes [Member] | Senior Debt Maturing In December 2019
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings		400				400
Senior Subordinated Notes [Member] | Senior Debt Maturing In December 2019 | Subsequent Event
Derivative Instruments, Gain (Loss) [Line Items]
Debt redeemed	$ 400
Senior Subordinated Notes [Member] | Senior Debt Maturing In December 2020
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings		$ 500				$ 500

Derivatives - Derivatives Assoc

Derivatives - Derivatives Associated with Fixed Income Trading Activities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 2,679,166	$ 2,271,448
Assets	93,314	18,744
Liabilities	1,285	27,768
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,679,166	2,271,448
Assets	541	4,014
Liabilities	5,509	9,041
Option contracts purchased | Long
Derivative Instruments, Gain (Loss) [Line Items]
Notional	20,000	20,000
Assets	94	25
Liabilities	0	0
Forwards and futures purchased
Derivative Instruments, Gain (Loss) [Line Items]
Notional	10,765,259	4,684,177
Assets	26,191	28,304
Liabilities	8,233	181
Forwards and futures sold
Derivative Instruments, Gain (Loss) [Line Items]
Notional	10,799,031	4,967,454
Assets	9,327	522
Liabilities	$ 25,586	$ 30,055

Derivatives - Derivatives Ass_2

Derivatives - Derivatives Associated With Interest Rate Risk Management Activities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 2,679,166	$ 2,271,448
Assets	93,314	18,744
Liabilities	1,285	27,768
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,679,166	2,271,448
Assets	541	4,014
Liabilities	5,509	9,041
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,681,149	2,029,162
Assets	120,031	20,262
Liabilities	1,456	25,880
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	2,681,149	2,029,162
Assets	1,094	8,154
Liabilities	13,072	9,153
Debt Hedging | Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	900,000	900,000
Assets	42	127
Liabilities	14	6
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Par
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	900,000	900,000
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Cumulative Fair Value Hedging Adjustments
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	(2,218)	(15,094)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Unamortized Premium (Discount) and Issuance Costs
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	(1,084)	(2,295)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	$ 896,698	$ 882,611

Derivatives - Gains_(Losses) on

Derivatives - Gains/(Losses) on Derivatives Associated with Interest Rate Risk Management Activities (Details) - Hedging Instruments And Hedged Items - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Customer Interest Rate Contracts Hedging | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	$ 44,375	$ (10,620)	$ 124,193	$ (39,803)
Customer Interest Rate Contracts Hedging | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	(44,375)	10,620	(124,193)	39,803
Debt Hedging | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	1,994	(246)	12,969	(8,386)
Debt Hedging | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) related to term borrowings	$ (2,004)	$ 240	$ (12,876)	$ 8,310

Derivatives - Derivatives Ass_3

Derivatives - Derivatives Associated With Cash Flow Hedges (Details) - Cash Flow Hedge - Hedging Instruments And Hedged Items - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Notional			$ 650,000
Variability in cash flows related to debt instruments (primarily loans)				$ 250,000
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)	$ 900,000	$ 900,000
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	900,000	900,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value	10	888
Liabilities	$ 73	$ 5

Derivatives - Gains_(Losses) _2

Derivatives - Gains/(Losses) on Derivatives Associated with Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss) expected to be reclassified to earnings in the next twelve months			$ (1,300)
Hedging Instruments And Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	$ 1,855	$ (2,517)	13,367	$ (14,612)
Gain/(loss) reclassified from AOCI into Interest income	989	771	3,773	1,079
Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	$ 3,840	$ (2,257)	$ 22,954	$ (17,788)

Derivatives - Derivative Assets

Derivatives - Derivative Assets And Collateral Received (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Net amount	$ 250,786	$ 81,475
Derivative assets not subject to master netting agreements	35,700	28,900
Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized assets	215,085	52,562
Derivative liabilities available for offset	0	0
Net amount	215,085	52,562
Derivative liabilities available for offset	(2,957)	(12,745)
Collateral received	(162,303)	(39,637)
Net amount	$ 49,825	$ 180

Derivatives - Derivative Liabil

Derivatives - Derivative Liabilities and Collateral Pledged (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Gross amounts of recognized liabilities	$ 83,530	$ 133,713
Derivative liabilities not subject to master netting agreements	62,000	61,900
Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	21,526	71,853
Derivative assets available for offset	0	0
Derivative liability	21,526	71,853
Derivative assets available for offset	(2,957)	(12,745)
Collateral pledged	(18,269)	(54,773)
Net amount	$ 300	$ 4,335

Master Netting and Similar Ag_3

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Securities Purchased Under Agreements To Resell And Collateral Pledged By Counterparties (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Securities Purchased under Agreements to Resell [Abstract]
Gross amounts of recognized assets	$ 697,214	$ 386,443
Gross amounts offset in the Statements of Condition	0	0
Net amounts of assets presented in the Statements of Condition	697,214	386,443
Offsetting securities sold under agreements to repurchase	(449)	(261)
Securities collateral (not recognized on FHN’s Statements of Condition)	(693,737)	(382,756)
Net amount	$ 3,028	$ 3,426

Master Netting and Similar Ag_4

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Securities Sold under Agreements to Repurchase [Abstract]
Gross amounts of recognized liabilities	$ 735,226	$ 762,592
Gross amounts offset in the Statements of Condition	0	0
Net amounts of liabilities presented in the Statements of Condition	735,226	762,592
Offsetting securities purchased under agreements to resell	(449)	(261)
Securities/ government guaranteed loans collateral	(734,763)	(762,322)
Net amount	$ 14	$ 9

Master Netting and Similar Ag_5

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Schedule of the Remaining Contractual Maturity by Collateral Type of Securities Sold Under Agreements To Repurchase (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	$ 735,226	$ 762,592
Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	726,266	757,372
Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	8,960	5,220
U.S. treasuries
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	22,388	16,321
U.S. treasuries | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	22,388	16,321
U.S. treasuries | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	0	0
Government agency issued MBS
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	373,379	419,708
Government agency issued MBS | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	364,419	414,488
Government agency issued MBS | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	8,960	5,220
Other U.S. government agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	63,673
Other U.S. government agencies | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	63,673
Other U.S. government agencies | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	0
Government agency issued CMO
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase		36,688
Government agency issued CMO | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase		36,688
Government agency issued CMO | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase		0
Government guaranteed loans (SBA and USDA)
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	275,786	289,875
Government guaranteed loans (SBA and USDA) | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	275,786	289,875
Government guaranteed loans (SBA and USDA) | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	$ 0	$ 0

Fair Value of Assets & Liabil_3

Fair Value of Assets & Liabilities - Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	$ 1,395,043	$ 1,448,168
Loans held-for-sale	14,409	16,273
Securities available-for-sale	4,415,845	4,626,470
Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	14,409	16,273
Securities available-for-sale	4,415,845	4,626,470
Total other assets	317,054	141,494
Total assets	6,142,351	6,232,405
Total other liabilities	83,530	133,713
Total liabilities	803,307	469,093
Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	0	0
Securities available-for-sale	0	0
Total other assets	101,786	88,845
Total assets	101,786	88,845
Total other liabilities	33,819	30,236
Total liabilities	33,819	30,236
Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	0	0
Securities available-for-sale	4,400,596	4,616,568
Total other assets	215,268	52,649
Total assets	6,009,809	6,115,861
Total other liabilities	21,626	71,937
Total liabilities	741,403	407,317
Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	14,409	16,273
Securities available-for-sale	15,249	9,902
Total other assets	0	0
Total assets	30,756	27,699
Total other liabilities	28,085	31,540
Total liabilities	28,085	31,540
Deferred compensation mutual funds | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	43,826	37,771
Deferred compensation mutual funds | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	43,826	37,771
Deferred compensation mutual funds | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Deferred compensation mutual funds | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Derivatives, forwards and futures | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	35,518	28,826
Total other liabilities	33,819	30,236
Derivatives, forwards and futures | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	35,518	28,826
Total other liabilities	33,819	30,236
Derivatives, forwards and futures | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, forwards and futures | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, interest rate contracts | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	215,126	52,214
Total other liabilities	21,409	71,853
Derivatives, interest rate contracts | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, interest rate contracts | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	215,126	52,214
Total other liabilities	21,409	71,853
Derivatives, interest rate contracts | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	142	435
Total other liabilities	28,302	31,624
Derivatives, other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	0	0
Derivatives, other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	142	435
Total other liabilities	217	84
Derivatives, other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Total other liabilities	28,085	31,540
U.S. treasuries | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	100	98
U.S. treasuries | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
U.S. treasuries | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	100	98
U.S. treasuries | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued MBS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	2,284,432	2,420,106
Government agency issued MBS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued MBS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	2,284,432	2,420,106
Government agency issued MBS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Government agency issued CMO | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	1,784,220	1,958,695
Total trading liabilities - fixed income	1,613
Government agency issued CMO | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Total trading liabilities - fixed income	0
Government agency issued CMO | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	1,784,220	1,958,695
Total trading liabilities - fixed income	1,613
Government agency issued CMO | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Total trading liabilities - fixed income	0
Other U.S. government agencies | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	241,333	149,786
Other U.S. government agencies | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Other U.S. government agencies | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	241,333	149,786
Other U.S. government agencies | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
States and municipalities | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	50,071	32,573
States and municipalities | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
States and municipalities | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	50,071	32,573
States and municipalities | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Corporates and other debt | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	40,440	55,310
Corporates and other debt | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Corporates and other debt | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	40,440	55,310
Corporates and other debt | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Equity, mutual funds, and other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	22,442	22,248
Equity, mutual funds, and other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	22,442	22,248
Equity, mutual funds, and other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Equity, mutual funds, and other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	0	0
Interest- only strips- AFS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	15,249	9,902
Interest- only strips- AFS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Interest- only strips- AFS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	0	0
Interest- only strips- AFS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	15,249	9,902
Fixed Income | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,393,945	1,446,644
Total trading liabilities - fixed income	719,777	335,380
Fixed Income | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,393,945	1,446,644
Total trading liabilities - fixed income	719,777	335,380
Fixed Income | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | U.S. treasuries | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	123,871	169,799
Total trading liabilities - fixed income	505,237	207,739
Fixed Income | U.S. treasuries | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | U.S. treasuries | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	123,871	169,799
Total trading liabilities - fixed income	505,237	207,739
Fixed Income | U.S. treasuries | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Government agency issued MBS | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	194,543	133,373
Fixed Income | Government agency issued MBS | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued MBS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	194,543	133,373
Fixed Income | Government agency issued MBS | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued CMO | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	498,967	330,456
Fixed Income | Government agency issued CMO | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Government agency issued CMO | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	498,967	330,456
Fixed Income | Government agency issued CMO | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Other U.S. government agencies | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	159,720	76,733
Total trading liabilities - fixed income	11,357	98
Fixed Income | Other U.S. government agencies | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Other U.S. government agencies | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	159,720	76,733
Total trading liabilities - fixed income	11,357	98
Fixed Income | Other U.S. government agencies | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | States and municipalities | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	86,185	54,234
Total trading liabilities - fixed income	2,076
Fixed Income | States and municipalities | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0
Fixed Income | States and municipalities | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	86,185	54,234
Total trading liabilities - fixed income	2,076
Fixed Income | States and municipalities | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0
Fixed Income | Corporates and other debt | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	329,440	682,068
Total trading liabilities - fixed income	199,494	127,543
Fixed Income | Corporates and other debt | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Corporates and other debt | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	329,440	682,068
Total trading liabilities - fixed income	199,494	127,543
Fixed Income | Corporates and other debt | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Total trading liabilities - fixed income	0	0
Fixed Income | Equity, mutual funds, and other | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,219	(19)
Fixed Income | Equity, mutual funds, and other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Fixed Income | Equity, mutual funds, and other | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,219	(19)
Fixed Income | Equity, mutual funds, and other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,098	1,524
Mortgage Banking | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	0	0
Mortgage Banking | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	$ 1,098	$ 1,524

Fair Value of Assets & Liabil_4

Fair Value of Assets & Liabilities - Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	$ (26,545)	$ (9,425)	$ (31,540)	$ (5,645)
Net income	(4,008)	(529)	(3,892)	(4,904)
Purchases	0	(28,100)	0	(28,100)
Sales	0	0	0	0
Settlements	2,468	3,842	7,347	4,437
Net transfers into/(out of) Level 3	0	0	0	0
Ending balance	(28,085)	(34,212)	(28,085)	(34,212)
Net unrealized gains/(losses) included in net income	(4,008)	(530)	(3,892)	(4,904)
Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,255	1,724	1,524	2,151
Net income	(157)	33	(128)	173
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	(165)	(298)	(732)
Net transfers into/(out of) Level 3	0	0	0	0
Ending balance	1,098	1,592	1,098	1,592
Net unrealized gains/(losses) included in net income	0	(3)	(66)	59
Interest- only strips- AFS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	17,792	5,787	9,902	1,270
Net income	(1,421)	(456)	(2,820)	840
Purchases	0	0	86	0
Sales	(11,401)	(2,034)	(38,612)	(11,227)
Settlements	0	0	0	0
Net transfers into/(out of) Level 3	10,279	7,064	46,693	19,478
Ending balance	15,249	10,361	15,249	10,361
Net unrealized gains/(losses) included in net income	(1,977)	(215)	(1,250)	(279)
Loans held- for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	15,092	16,718	16,273	18,926
Net income	443	277	1,259	986
Purchases	0	0	10	62
Sales	0	0	0	0
Settlements	(1,126)	(759)	(3,133)	(3,382)
Net transfers into/(out of) Level 3	0	0	0	(356)
Ending balance	14,409	16,236	14,409	16,236
Net unrealized gains/(losses) included in net income	$ 443	$ 277	$ 1,259	$ 986

Fair Value of Assets & Liabil_5

Fair Value of Assets & Liabilities - Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Thousands		Sep. 30, 2019		Dec. 31, 2018		Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 14,409		$ 16,273
Loans, net of unearned income		31,260,833	[1]	27,535,532	[1]	$ 27,350,214
OREO	[2]	20,181		25,290
Non Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		54,092		48,259
OREO		17,816		22,387
Other assets		13,777		8,845
Non Recurring | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale				18,712
Non Recurring | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		449,111		578,291
Non Recurring | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		519		541
Non Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		0		0
OREO		0		0
Other assets		0		0
Non Recurring | Level 1 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale				0
Non Recurring | Level 1 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 1 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		0		0
OREO		0		0
Other assets		0		0
Non Recurring | Level 2 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale				18,712
Non Recurring | Level 2 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		448,166		577,280
Non Recurring | Level 2 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		0		0
Non Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		54,092		48,259
OREO		17,816		22,387
Other assets		13,777		8,845
Non Recurring | Level 3 | Other Consumer Loans Class
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale				0
Non Recurring | Level 3 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		945		1,011
Non Recurring | Level 3 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 519		$ 541
[1]	September 30, 2019 and December 31, 2018 include $18.2 million and $28.6 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	September 30, 2019 and December 31, 2018 include $8.8 million and $9.7 million , respectively, of foreclosed residential real estate.

Fair Value of Assets & Liabil_6

Fair Value of Assets & Liabilities - Gains/(losses) on Nonrecurring Fair Value Measurements (Details) - Non Recurring - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans, net of unearned income	$ (15,559)	$ 363	$ (16,036)	$ 1,020
Net gains/(losses), Real estate acquired by foreclosure	(282)	(776)	(256)	(2,198)
Net gains/(losses), Other assets	(407)	(1,370)	(1,349)	(3,586)
Gain (loss) on financial assets measured on non-recurring basis	(17,223)	(2,993)	(18,822)	(7,221)
First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	2	3	27	7
SBAs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	$ (977)	$ (1,213)	$ (1,208)	$ (2,464)

Fair Value of Assets & Liabil_7

Fair Value of Assets & Liabilities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Gain/(loss) on instrument specific credit risk	$ 0.1				$ 0		$ 0.4	$ 0.3
Corporate
Segment Reporting Information [Line Items]
Asset impairment charges				$ 1.9	0.7	$ 1.3
Reversed asset impairment charges				$ 0.5	$ 1
Disposition of Acquired Properties | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges	2.4	$ 0.8
Reversed asset impairment charges	0.4	0.3
Leased Assets | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		1.5
Leased Assets | 2019 Business Optimization | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges	1	0.3	$ 0.8
Reversed asset impairment charges	$ 0.7
Long Lived Tangible Assets | 2019 Business Optimization | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		11.4	$ 0.5
Long Lived Tangible Assets | Rebranding Initiative | Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		$ 7.1

Fair Value of Assets & Liabil_8

Fair Value of Assets & Liabilities - Schedule Of Unobservable Inputs Utilized In Determining The Fair Value Of Level 3 Recurring And Non-Recurring Measurements (Details) $ in Thousands	Sep. 30, 2019USD ($)month	Dec. 31, 2018USD ($)month
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 4,415,845	$ 4,626,470
Loans held-for-sale	14,409	16,273
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	28,085	31,540
Loans net of unearned income	54,092	48,259
OREO, fair value	17,816	22,387
Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	945	1,011
Other Assets | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 13,777	$ 8,845
Constant prepayment rate | Weighted Average | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.10	0.10
Bond equivalent yield | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input		0.09
Bond equivalent yield | Weighted Average | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.09	0.09
Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.08	0.08
Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.12	0.12
Foreclosure losses | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.64	0.63
Foreclosure losses | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.50	0.50
Foreclosure losses | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.66	0.66
Visa covered litigation resolution amount | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	$ 5,800,000	$ 5,600,000
Visa covered litigation resolution amount | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	5,400,000	5,000,000
Visa covered litigation resolution amount | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, value	$ 6,000,000	$ 5,800,000
Probability of resolution scenarios | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.16	0.23
Probability of resolution scenarios | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.10	0.10
Probability of resolution scenarios | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input	0.50	0.25
Time until resolution | Weighted Average | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	32	36
Time until resolution | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	18	18
Time until resolution | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input | month	42	48
Marketability adjustments for specific properties | Minimum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0	0
Other assets, measurement input	0	0
Marketability adjustments for specific properties | Maximum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.10	0.10
Other assets, measurement input	0.25	0.25
Borrowing base certificates adjustment | Minimum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.20	0.20
Borrowing base certificates adjustment | Maximum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.50	0.50
Financial Statements/Auction values adjustment | Minimum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0	0
Financial Statements/Auction values adjustment | Maximum | Other collateral valuations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans net of unearned income, measurement input	0.25	0.25
Adjustment for value changes since appraisal | Minimum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO measurement input	0	0
Adjustment for value changes since appraisal | Maximum | Appraisals from comparable properties | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO measurement input	0.10	0.10
Adjustments to current sales yields for specific properties | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets, measurement input	0	0
Adjustments to current sales yields for specific properties | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets, measurement input	0.15	0.15
Residential Real Estate | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	$ 14,928	$ 16,815
First Mortgages | Prepayment Speeds | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.043	0.03
First Mortgages | Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.03	0.02
First Mortgages | Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.14	0.10
First Mortgages | Loss severity | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.148	0.17
First Mortgages | Loss severity | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.04	0.02
First Mortgages | Loss severity | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.23	0.25
HELOC | Prepayment Speeds | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.076	0.075
HELOC | Prepayment Speeds | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0	0.05
HELOC | Prepayment Speeds | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.12	0.12
HELOC | Loss severity | Weighted Average | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.50	0.50
HELOC | Loss severity | Minimum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0	0.50
HELOC | Loss severity | Maximum | Discounted cash flow | Loans Held For Sale, Residential Real Estate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.72	1
Interest- only strips- AFS | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 15,249	$ 9,902
Interest- only strips- AFS | Constant prepayment rate | Weighted Average | Discounted cash flow | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.12	0.11
Interest- only strips- AFS | Bond equivalent yield | Weighted Average | Discounted cash flow | Available-for-sale Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.15	0.14
Interest- only strips- AFS | Bond equivalent yield | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.15	0.14
Interest- only strips- AFS | Bond equivalent yield | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.16	0.15
Interest- only strips- AFS | Prepayment Speeds | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input	0.12
Interest- only strips- AFS | Prepayment Speeds | Minimum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input		0.11
Interest- only strips- AFS | Prepayment Speeds | Maximum | Discounted cash flow | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for-sale, measurement input		0.12
Non Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 13,777	$ 8,845
Non Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 13,777	$ 8,845
SBAs | Non Recurring | Bond equivalent yield | Discounted cash flow | Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale, measurement input	0.09

Fair Value of Assets & Liabil_9

Fair Value of Assets & Liabilities - Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 14,409	$ 16,273
Fair value carrying amount less aggregate unpaid principal - Total loans	(5,838)	(7,294)
Nonaccrual loans	3,679	4,536
Fair value carrying amount less aggregate unpaid principal - Nonaccrual loans	(3,115)	(3,592)
Loans 90 days or more past due and still accruing	0	171
Fair value carrying amount less aggregate unpaid principal - Loans 90 days or more past due and still accruing	0	(110)
Aggregate unpaid principal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	20,247	23,567
Nonaccrual loans	6,794	8,128
Loans 90 days or more past due and still accruing	$ 0	$ 281

Fair Value of Assets & Liabi_10

Fair Value of Assets & Liabilities - Changes In Fair Value Of Assets And Liabilities Which Fair Value Option Included In Current Period Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Mortgage Banking Noninterest Income | Loans held- for-sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in fair value included in net income	$ 443	$ 277	$ 1,259	$ 986

Fair Value of Assets & Liabi_11

Fair Value of Assets & Liabilities - Summary Of Book Value And Estimated Fair Value Of Financial Instruments (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		$ 31,067,684	$ 27,355,108
Short-term financial assets:
Interest-bearing cash		364,412	1,277,611
Federal funds sold		48,747	237,591
Securities purchased under agreements to resell		697,214	386,443
Trading securities		1,395,043	1,448,168
Loans held-for-sale	[1]	554,843	679,149
Securities available-for-sale		4,415,845	4,626,470
Securities held-to-maturity		10,000	10,000
Other assets:
Total assets		43,717,684	40,832,258
Liabilities:
Trading Liabilities		719,777	335,380
Short-term financial liabilities:
Federal funds purchased		936,837	256,567
Securities sold under agreements to repurchase		735,226	762,592
Other short-term borrowings		2,276,139	114,764
Term borrowings:
Other long term borrowings		1,195,096	1,170,963
Derivative liabilities		83,530	133,713
Total liabilities		38,721,641	36,046,878
Fair Value, Inputs, Level 3 | FHLB-Cincinnati Stock
Term borrowings:
Restricted investments		73,000	87,900
Fair Value, Inputs, Level 3 | FRB Stock
Term borrowings:
Restricted investments		130,700	130,700
Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		31,067,684	27,355,108
Short-term financial assets:
Interest-bearing cash		364,412	1,277,611
Federal funds sold		48,747	237,591
Securities purchased under agreements to resell		697,214	386,443
Total short-term financial assets		1,110,373	1,901,645
Trading securities		1,395,043	1,448,168
Loans held-for-sale		554,843	679,149
Securities available-for-sale		4,415,845	4,626,470
Securities held-to-maturity		10,000	10,000
Derivative assets		250,786	81,475
Other assets:
Tax credit investments		196,451	163,300
Deferred compensation assets		43,826	37,771
Equity, mutual funds, and other		226,146	240,780
Total other assets		466,423	441,851
Total assets		39,270,997	36,543,866
Liabilities:
Defined maturity		4,176,267	4,105,777
Trading Liabilities		719,777	335,380
Short-term financial liabilities:
Federal funds purchased		936,837	256,567
Securities sold under agreements to repurchase		735,226	762,592
Other short-term borrowings		2,276,139	114,764
Short Term Financial Liabilities		3,948,202	1,133,923
Term borrowings:
Real estate investment trust-preferred		46,219	46,168
Term borrowings - new market tax credit investment		2,699	2,699
Secured Borrowings		24,432	19,588
Junior subordinated debentures		144,259	143,255
Other long term borrowings		977,487	959,253
Total term borrowings		1,195,096	1,170,963
Derivative liabilities		83,530	133,713
Total liabilities		10,122,872	6,879,756
Reported Value Measurement | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		20,179,800	16,415,381
Reported Value Measurement | Commercial Real Estate (a)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		4,192,973	3,999,559
Reported Value Measurement | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,040,992	6,223,077
Reported Value Measurement | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		173,630	211,448
Reported Value Measurement | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		480,289	505,643
Reported Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		14,409	16,273
Reported Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		449,111	578,291
Reported Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		5,479	25,134
Reported Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		85,844	59,451
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		31,350,892	27,364,329
Short-term financial assets:
Interest-bearing cash		364,412	1,277,611
Federal funds sold		48,747	237,591
Securities purchased under agreements to resell		697,214	386,443
Total short-term financial assets		1,110,373	1,901,645
Trading securities		1,395,043	1,448,168
Loans held-for-sale		559,582	684,349
Securities available-for-sale		4,415,845	4,626,470
Securities held-to-maturity		9,987	9,843
Derivative assets		250,786	81,475
Other assets:
Tax credit investments		194,226	159,452
Deferred compensation assets		43,826	37,771
Equity, mutual funds, and other		226,146	240,780
Total other assets		464,198	438,003
Total assets		39,556,706	36,554,282
Liabilities:
Defined maturity		4,200,490	4,082,822
Trading Liabilities		719,777	335,380
Short-term financial liabilities:
Federal funds purchased		936,837	256,567
Securities sold under agreements to repurchase		735,226	762,592
Other short-term borrowings		2,276,139	114,764
Short Term Financial Liabilities		3,948,202	1,133,923
Term borrowings:
Real estate investment trust-preferred		47,000	47,000
Term borrowings - new market tax credit investment		2,696	2,664
Secured Borrowings		24,432	19,588
Junior subordinated debentures		138,947	134,266
Other long term borrowings		973,506	960,483
Total term borrowings		1,186,581	1,164,001
Derivative liabilities		83,530	133,713
Total liabilities		10,138,580	6,849,839
Loan commitments		3,187	2,551
Standby and other commitments		5,258	5,043
Estimate of Fair Value Measurement | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		20,373,976	16,438,272
Estimate of Fair Value Measurement | Commercial Real Estate (a)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		4,203,482	3,997,736
Estimate of Fair Value Measurement | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,100,503	6,194,066
Estimate of Fair Value Measurement | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		188,433	227,254
Estimate of Fair Value Measurement | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		484,498	507,001
Estimate of Fair Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		14,409	16,273
Estimate of Fair Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		453,850	583,491
Estimate of Fair Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		5,479	25,134
Estimate of Fair Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		85,844	59,451
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Short-term financial assets:
Interest-bearing cash		364,412	1,277,611
Federal funds sold		0	0
Securities purchased under agreements to resell		0	0
Total short-term financial assets		364,412	1,277,611
Trading securities		0	0
Loans held-for-sale		0	0
Securities available-for-sale		0	0
Securities held-to-maturity		0	0
Derivative assets		35,518	28,826
Other assets:
Tax credit investments		0	0
Deferred compensation assets		43,826	37,771
Equity, mutual funds, and other		22,442	22,248
Total other assets		66,268	60,019
Total assets		466,198	1,366,456
Liabilities:
Defined maturity		0	0
Trading Liabilities		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
Short Term Financial Liabilities		0	0
Term borrowings:
Real estate investment trust-preferred		0	0
Term borrowings - new market tax credit investment		0	0
Secured Borrowings		0	0
Junior subordinated debentures		0	0
Other long term borrowings		0	0
Total term borrowings		0	0
Derivative liabilities		33,819	30,236
Total liabilities		33,819	30,236
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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 (a)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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		48,747	237,591
Securities purchased under agreements to resell		697,214	386,443
Total short-term financial assets		745,961	624,034
Trading securities		1,393,945	1,446,644
Loans held-for-sale		458,368	588,898
Securities available-for-sale		4,400,596	4,616,568
Securities held-to-maturity		0	0
Derivative assets		215,268	52,649
Other assets:
Tax credit investments		0	0
Deferred compensation assets		0	0
Equity, mutual funds, and other		0	0
Total other assets		0	0
Total assets		7,214,138	7,328,793
Liabilities:
Defined maturity		4,200,490	4,082,822
Trading Liabilities		719,777	335,380
Short-term financial liabilities:
Federal funds purchased		936,837	256,567
Securities sold under agreements to repurchase		735,226	762,592
Other short-term borrowings		2,276,139	114,764
Short Term Financial Liabilities		3,948,202	1,133,923
Term borrowings:
Real estate investment trust-preferred		0	0
Term borrowings - new market tax credit investment		0	0
Secured Borrowings		0	0
Junior subordinated debentures		0	0
Other long term borrowings		973,506	960,483
Total term borrowings		973,506	960,483
Derivative liabilities		21,626	71,937
Total liabilities		9,863,601	6,584,545
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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 (a)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		452,889	582,476
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		5,479	6,422
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		31,350,892	27,364,329
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		1,098	1,524
Loans held-for-sale		101,214	95,451
Securities available-for-sale		15,249	9,902
Securities held-to-maturity		9,987	9,843
Derivative assets		0	0
Other assets:
Tax credit investments		194,226	159,452
Deferred compensation assets		0	0
Equity, mutual funds, and other		203,704	218,532
Total other assets		397,930	377,984
Total assets		31,876,370	27,859,033
Liabilities:
Defined maturity		0	0
Trading Liabilities		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
Short Term Financial Liabilities		0	0
Term borrowings:
Real estate investment trust-preferred		47,000	47,000
Term borrowings - new market tax credit investment		2,696	2,664
Secured Borrowings		24,432	19,588
Junior subordinated debentures		138,947	134,266
Other long term borrowings		0	0
Total term borrowings		213,075	203,518
Derivative liabilities		28,085	31,540
Total liabilities		241,160	235,058
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial, financial, and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		20,373,976	16,438,272
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial Real Estate (a)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		4,203,482	3,997,736
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Consumer Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		6,100,503	6,194,066
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Permanent Mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		188,433	227,254
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Credit Card and Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses		484,498	507,001
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale		14,409	16,273
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale		961	1,015
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale		0	18,712
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale		85,844	59,451
Contractual Amount
Term borrowings:
Loan commitments		11,397,521	10,884,975
Standby and other commitments		$ 430,226	$ 446,958
[1]	September 30, 2019 and December 31, 2018 include $6.4 million and $8.4 million , respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.

Restructuring, Repositioning,_3

Restructuring, Repositioning, and Efficiency (Details) - 2019 Business Optimization - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	$ 7,842	$ 38,662
Employee Severance
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges		10,200
Professional fees
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges		15,000
Asset impairments
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges		12,200
Employee compensation, incentives and benefits
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	1,182	10,244
Professional fees
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	6,488	15,025
Occupancy
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	(128)	761
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring and repositioning charges	$ 300	$ 12,632

Uncategorized Items - fhnq3fy20

Label	Element	Value
Retained Earnings, Unappropriated [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 1,160,712,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1,541,397,000
Preferred Stock Including Additional Paid in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	95,624,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	95,624,000
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	3,147,613,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	3,029,425,000
Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	199,108,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	204,211,000
Noncontrolling Interest [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	295,431,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	295,431,000
Accounting Standards Update 2016-02 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,011,000)
Accounting Standards Update 2016-02 [Member] | Retained Earnings, Unappropriated [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,011,000)
Accounting Standards Update 2016-01 and 2017-12 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	67,000
Accounting Standards Update 2016-01 and 2017-12 [Member] | Retained Earnings, Unappropriated [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	278,000
Accounting Standards Update 2016-01 and 2017-12 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (211,000)	[1]
[1]	Due to the nature of the preferred stock issued by FHN and its subsidiaries, all components of Other comprehensive income/(loss) have been attributed solely to FHN as the controlling interest holder.