First Horizon (FHN) 10-Q 5 Aug 20 2020 Q2 Quarterly report Financial data

Cover

Cover	6 Months Ended
	Jun. 30, 2020shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
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)	312,358,668
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000036966
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
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
Series B Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/400th interest ina share of Non-Cumulative Perpetual Preferred Stock, Series B*
Trading Symbol	FHN PR B
Security Exchange Name	NYSE
Series C Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/400th interest ina share of Non-Cumulative Perpetual Preferred Stock, Series C*
Trading Symbol	FHN PR C
Security Exchange Name	NYSE
Series D Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/400th interest ina share of Non-Cumulative Perpetual Preferred Stock, Series D*
Trading Symbol	FHN PR D
Security Exchange Name	NYSE
Series E 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 E
Trading Symbol	FHN PR E
Security Exchange Name	NYSE

CONSOLIDATED CONDENSED STATEMEN

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION - USD ($) $ in Thousands		Jun. 30, 2020	Dec. 31, 2019
Assets:
Cash and due from banks		$ 604,280	$ 633,728
Federal funds sold		113,000	46,536
Securities purchased under agreements to resell (Note 15)		302,267	586,629
Total cash and cash equivalents		1,019,547	1,266,893
Interest-bearing cash		3,135,844	482,405
Trading securities		1,116,450	1,346,207
Loans held-for-sale	[1]	745,655	593,790
Securities available-for-sale		5,476,156	4,445,403
Securities held-to-maturity (Note 3)		10,000	10,000
Loans, net of unearned income	[2]	32,708,937	31,061,111
Less: Allowance for loan losses (Note 5)		537,881	200,307
Total net loans		32,171,056	30,860,804
Goodwill (Note 6)		1,432,787	1,432,787
Other intangible assets, net (Note 6)		119,608	130,200
Fixed income receivables		145,455	40,114
Premises and equipment, net (June 30, 2020 and December 31, 2019 include $7.0 million and $9.7 million, respectively, classified as held-for-sale)		448,028	455,006
Other real estate owned (OREO)	[3]	15,134	17,838
Derivative assets (Note 14)		599,704	183,115
Other assets		2,209,235	2,046,338
Total assets		48,644,659	43,310,900
Deposits:
Savings		13,532,127	11,664,906
Time deposits, net		2,655,702	3,618,337
Other interest-bearing deposits		9,783,704	8,717,341
Interest-bearing		25,971,533	24,000,584
Noninterest-bearing		11,787,818	8,428,951
Total deposits		37,759,351	32,429,535
Federal funds purchased		778,529	548,344
Securities sold under agreements to repurchase (Note 15)		1,482,585	716,925
Trading liabilities		232,742	505,581
Other short-term borrowings		130,583	2,253,045
Term borrowings		2,032,476	791,368
Fixed income payables		24,735	49,535
Derivative liabilities (Note 14)		94,389	67,480
Other liabilities		900,884	873,079
Total liabilities		43,436,274	38,234,892
First Horizon National Corporation Shareholders’ Equity:
Preferred stock - Non-cumulative perpetual, no par value, liquidation preference of $100,000 per share - (Series A shares authorized - 1,000; shares issued - 1,000 on June 30, 2020 and December 31, 2019. Series E shares authorized - 1,725; shares issued - 1,500 on June 30, 2020)		240,289	95,624
Common stock - $.625 par value (shares authorized - 400,000,000; shares issued - 312,358,668 on June 30, 2020 and 311,469,056 on December 31, 2019)		195,224	194,668
Capital surplus		2,940,610	2,931,451
Undivided profits		1,671,629	1,798,442
Accumulated other comprehensive loss, net (Note 8)		(134,798)	(239,608)
Total First Horizon National Corporation Shareholders’ Equity		4,912,954	4,780,577
Noncontrolling interest		295,431	295,431
Total equity		5,208,385	5,076,008
Total liabilities and equity		$ 48,644,659	$ 43,310,900
[1]	June 30, 2020 and December 31, 2019 include $2.5 million and $6.8 million , respectively, of held-for-sale consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[3]	June 30, 2020 and December 31, 2019 include $7.8 million and $9.2 million , respectively, of foreclosed residential real estate.

CONSOLIDATED CONDENSED STATEM_2

CONSOLIDATED CONDENSED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2020	Dec. 31, 2019
Premises and equipment, net, held-for-sale)		$ 7,000	$ 9,700
Preferred stock liquidation preference value (in dollars per share)		$ 100,000	$ 100,000
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)		312,358,668	311,469,056
OREO	[1]	$ 15,134	$ 17,838
Residential Real Estate
Consumer mortgage loans secured by residential real estate in process of foreclosure		16,900	18,800
OREO		7,800	9,200
Residential Real Estate | Loans Held For Sale, Residential Real Estate
Consumer mortgage loans secured by residential real estate in process of foreclosure		$ 2,500	$ 6,800
Series A Preferred Stock
Preferred stock, Series A shares authorized (in shares)		1,000	1,000
Preferred stock, Series A shares issued (in shares)		1,000	1,000
Series E Preferred Stock
Preferred stock, Series A shares authorized (in shares)		1,725
Preferred stock, Series A shares issued (in shares)		1,500
[1]	June 30, 2020 and December 31, 2019 include $7.8 million and $9.2 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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income:
Interest and fees on loans	$ 305,913	$ 352,112	$ 632,512	$ 684,050
Interest on investment securities available-for-sale	24,977	31,247	52,733	63,090
Interest on investment securities held-to-maturity	132	132	263	263
Interest on loans held-for-sale	6,596	8,128	13,495	18,005
Interest on trading securities	8,723	13,154	21,840	26,702
Interest on other earning assets	283	7,316	4,149	20,594
Total interest income	346,624	412,089	724,992	812,704
Interest on deposits:
Savings	12,520	36,806	38,853	76,720
Time deposits	9,259	22,439	23,202	42,693
Other interest-bearing deposits	2,966	19,757	17,179	41,799
Interest on trading liabilities	974	3,756	4,266	6,572
Interest on short-term borrowings	1,455	11,038	11,319	17,782
Interest on term borrowings	14,106	14,683	22,027	29,020
Total interest expense	41,280	108,479	116,846	214,586
Net interest income	305,344	303,610	608,146	598,118
Provision/(provision credit) for loan losses	110,000	13,000	255,000	22,000
Net interest income after provision/(provision credit) for loan losses	195,344	290,610	353,146	576,118
Noninterest income:
Fixed income	112,421	66,414	208,056	120,163
Deposit transactions and cash management	30,787	32,374	61,077	63,995
Brokerage, management fees and commissions	13,800	14,120	29,205	26,753
Trust services and investment management	7,733	7,888	14,928	14,914
Bankcard income	6,652	6,355	13,905	13,307
Bank-owned life insurance (BOLI)	6,380	5,126	10,969	9,528
Debt securities gains/(losses), net (Note 3 and Note 8)	0	(267)	0	(267)
Equity securities gains/(losses), net (Note 3)	(1,493)	316	(1,468)	347
All other income and commissions (Note 7)	29,989	25,667	44,353	50,298
Total noninterest income	206,269	157,993	381,025	299,038
Adjusted gross income after provision/(provision credit) for loan losses	401,613	448,603	734,171	875,156
Noninterest expense:
Employee compensation, incentives, and benefits	200,259	171,643	383,729	349,568
Occupancy	21,445	20,719	41,008	41,412
Computer software	16,522	15,001	32,549	30,140
Operations services	11,654	11,713	23,346	23,201
Professional fees	10,310	11,291	17,306	23,590
Equipment rentals, depreciation, and maintenance	8,384	8,375	16,936	17,204
FDIC premium expense	6,432	4,247	13,174	8,520
Communications and courier	5,868	7,380	11,396	13,833
Amortization of intangible assets	5,284	6,206	10,592	12,422
Contract employment and outsourcing	5,236	3,078	10,172	6,449
Advertising and public relations	2,525	5,574	9,981	12,816
Legal fees	2,498	6,486	4,321	9,317
All other expense (Note 7)	35,751	28,681	68,977	48,012
Total noninterest expense	332,168	300,394	643,487	596,484
Income/(loss) before income taxes	69,445	148,209	90,684	278,672
Provision/(benefit) for income taxes	12,780	34,467	17,547	61,525
Net income/(loss)	56,665	113,742	73,137	217,147
Net income attributable to noncontrolling interest	2,851	2,852	5,703	5,672
Net income/(loss) attributable to controlling interest	53,814	110,890	67,434	211,475
Preferred stock dividends	1,550	1,550	3,100	3,100
Net income/(loss) available to common shareholders	$ 52,264	$ 109,340	$ 64,334	$ 208,375
Basic earnings/(loss) per share (Note 9) (in dollars per share)	$ 0.17	$ 0.35	$ 0.21	$ 0.66
Diluted earnings/(loss) per share (Note 9) (in dollars per share)	$ 0.17	$ 0.35	$ 0.21	$ 0.66
Weighted average common shares (Note 9) (in shares)	312,090	314,063	311,843	315,740
Diluted average common shares (Note 9) (in shares)	312,936	315,786	312,792	317,720

CONSOLIDATED CONDENSED STATEM_4

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statements of Comprehensive Income/(loss)
Net income/(loss)	$ 56,665	$ 113,742	$ 73,137	$ 217,147
Other comprehensive income/(loss), net of tax:
Net unrealized gains/(losses) on securities available-for-sale	(1,030)	48,192	87,248	96,807
Net unrealized gains/(losses) on cash flow hedges	17	8,909	13,078	14,296
Net unrealized gains/(losses) on pension and other postretirement plans	2,379	1,561	4,484	3,024
Other comprehensive income/(loss)	1,366	58,662	104,810	114,127
Comprehensive income/(loss)	58,031	172,404	177,947	331,274
Comprehensive income attributable to noncontrolling interest	2,851	2,852	5,703	5,672
Comprehensive income attributable to controlling interest	55,180	169,552	172,244	325,602
Income tax expense/(benefit) of items included in Other comprehensive income:
Net unrealized gains/(losses) on securities available-for-sale	(336)	15,819	28,451	31,777
Net unrealized gains/(losses) on cash flow hedges	5	2,924	4,265	4,692
Net unrealized gains/(losses) on pension and other postretirement plans	$ 776	$ 513	$ 1,462	$ 993

CONSOLIDATED CONDENSED STATEM_5

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands		Total	Preferred Stock	Common 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 | Accounting Standards Update 2016-02		$ (1,011)						$ (1,011)
Balance, beginning of period (in shares) at Dec. 31, 2018			1,000	318,573
Balance, beginning of period at Dec. 31, 2018		4,785,380	$ 95,624	$ 199,108		$ 3,029,425		1,542,408	$ (376,616)	[1]	$ 295,431
Beginning balance, as adjusted at Dec. 31, 2018		4,784,369	$ 95,624	$ 199,108		3,029,425		1,541,397	(376,616)	[1]	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	[1]
Comprehensive income/(loss)		158,870						100,585	55,465	[1]	2,820
Cash dividends declared:
Preferred stock		(1,550)						(1,550)
Common stock		(44,864)						(44,864)
Common stock repurchased (in shares)				(3,594)
Common stock repurchased		(53,436)		$ (2,246)	[2]	(51,190)	[2]
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				382
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, ending of period (in shares) at Mar. 31, 2019			1,000	315,361
Balance, end of period at Mar. 31, 2019		4,846,521	$ 95,624	$ 197,101		2,983,948		1,595,568	(321,151)	[1]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2018			1,000	318,573
Balance, beginning of period at Dec. 31, 2018		4,785,380	$ 95,624	$ 199,108		3,029,425		1,542,408	(376,616)	[1]	295,431
Beginning balance, as adjusted at Dec. 31, 2018		4,784,369	$ 95,624	$ 199,108		3,029,425		1,541,397	(376,616)	[1]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		217,147
Other comprehensive income/(loss)		114,127
Comprehensive income/(loss)		331,274
Cash dividends declared:
Preferred stock		(3,100)
Balance, ending of period (in shares) at Jun. 30, 2019			1,000	312,478
Balance, end of period at Jun. 30, 2019		4,926,081	$ 95,624	$ 195,299		2,941,696		1,660,520	(262,489)	[1]	295,431
Balance, beginning of period (in shares) at Mar. 31, 2019			1,000	315,361
Balance, beginning of period at Mar. 31, 2019		4,846,521	$ 95,624	$ 197,101		2,983,948		1,595,568	(321,151)	[1]	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)				(3,654)
Common stock repurchased		(52,222)		$ (2,284)	[2]	(49,938)	[2]
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				771
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, ending of period (in shares) at Jun. 30, 2019			1,000	312,478
Balance, end of period at Jun. 30, 2019		4,926,081	$ 95,624	$ 195,299		2,941,696		1,660,520	(262,489)	[1]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment to reflect adoption of ASU | Accounting Standards Update 2016-13		(96,057)						(96,057)
Balance, beginning of period (in shares) at Dec. 31, 2019			1,000	311,469
Balance, beginning of period at Dec. 31, 2019		5,076,008	$ 95,624	$ 194,668		2,931,451		1,798,442	(239,608)	[3]	295,431
Beginning balance, as adjusted at Dec. 31, 2019		4,979,951	$ 95,624	$ 194,668		2,931,451		1,702,385	(239,608)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		16,472						13,620			2,852
Other comprehensive income/(loss)		103,444							103,444	[3]
Comprehensive income/(loss)		119,916						13,620	103,444	[3]	2,852
Cash dividends declared:
Preferred stock		(1,550)						(1,550)
Common stock		(47,350)						(47,350)
Common stock repurchased (in shares)				(141)
Common stock repurchased		(2,064)		$ (88)		(1,976)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				652
Stock options and restricted stock - equity awards		4,140		$ 407		3,733
Stock-based compensation expense		7,281				7,281
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,852)									(2,852)
Other (in shares)	[4]			(117)
Other	[4]	(1,892)		$ (73)		(1,819)
Balance, ending of period (in shares) at Mar. 31, 2020			1,000	311,863
Balance, end of period at Mar. 31, 2020		5,055,580	$ 95,624	$ 194,914		2,938,670		1,667,105	(136,164)	[3]	295,431
Balance, beginning of period (in shares) at Dec. 31, 2019			1,000	311,469
Balance, beginning of period at Dec. 31, 2019		5,076,008	$ 95,624	$ 194,668		2,931,451		1,798,442	(239,608)	[3]	295,431
Beginning balance, as adjusted at Dec. 31, 2019		4,979,951	$ 95,624	$ 194,668		2,931,451		1,702,385	(239,608)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		73,137
Other comprehensive income/(loss)		104,810
Comprehensive income/(loss)		177,947
Cash dividends declared:
Preferred stock		(3,100)
Balance, ending of period (in shares) at Jun. 30, 2020			2,500	312,359
Balance, end of period at Jun. 30, 2020		5,208,385	$ 240,289	$ 195,224		2,940,610		1,671,629	(134,798)	[3]	295,431
Balance, beginning of period (in shares) at Mar. 31, 2020			1,000	311,863
Balance, beginning of period at Mar. 31, 2020		5,055,580	$ 95,624	$ 194,914		2,938,670		1,667,105	(136,164)	[3]	295,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)		56,665						53,814			2,851
Other comprehensive income/(loss)		1,366							1,366	[3]
Comprehensive income/(loss)		58,031						53,814	1,366	[3]	2,851
Cash dividends declared:
Preferred stock		(1,550)						(1,550)
Common stock		(47,740)						(47,740)
Preferred stock issuance (in shares) (1,500 shares issued at $100,000 per share net of offering costs)			1,500
Preferred stock issuance (1,500 shares issued at $100,000 per share net of offering costs)		144,665	$ 144,665
Common stock repurchased (in shares)				(183)
Common stock repurchased		(1,468)		$ (114)		(1,354)
Common stock issued for:
Stock options and restricted stock - equity awards (in shares)				679
Stock options and restricted stock - equity awards				$ 424		(424)
Stock-based compensation expense		3,718				3,718
Dividends declared - noncontrolling interest of subsidiary preferred stock		(2,851)									(2,851)
Balance, ending of period (in shares) at Jun. 30, 2020			2,500	312,359
Balance, end of period at Jun. 30, 2020		$ 5,208,385	$ 240,289	$ 195,224		$ 2,940,610		$ 1,671,629	$ (134,798)	[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]	Includes $51.5 million and $50.2 million repurchased under share repurchase programs in first and second quarter 2019, respectively.
[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]	Represents shares canceled in connection with the resolution of remaining Capital Bank Financial Corporation ("CBF") dissenters' appraisal process.

CONSOLIDATED CONDENSED STATEM_6

CONSOLIDATED CONDENSED STATEMENTS OF EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Preferred stock - cash dividends declared per share (in dollars per share)	$ 1,550	$ 1,550	$ 1,550	$ 1,550
Common stock - cash dividends declared per share (in dollars per share)	0.15	$ 0.15	$ 0.14	$ 0.14
First Horizon Share Repurchase Program
Common stock repurchased under share repurchase program			$ 50.2	$ 51.5
Preferred Stock
Preferred stock issuance, net of offering cost (in dollars per share)	$ 100,000,000
Number of shares issued in transaction (in shares)	1,500,000

CONSOLIDATED CONDENSED STATEM_7

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019
Operating Activities
Net income/(loss)		$ 73,137		$ 217,147
Adjustments to reconcile net income/(loss) to net cash provided/(used) by operating activities:
Provision/(provision credit) for loan losses		255,000		22,000
Provision/(benefit) for deferred income taxes		(38,528)		60,943
Depreciation and amortization of premises and equipment		21,040		22,564
Amortization of intangible assets		10,592		12,422
Net other amortization and accretion		7,838		(2,542)
Net (increase)/decrease in derivatives		(368,592)		(119,415)
Fair value adjustment on interest-only strips		2,528		1,399
(Gains)/losses and write-downs on OREO, net		117		(304)
Litigation and regulatory matters		0		(8,330)
Stock-based compensation expense		10,999		10,656
Gain on sale and pay down of held-to-maturity loans		0		(1,105)
Equity securities (gains)/losses, net		1,468		(347)
Debt securities (gains)/losses, net		0		267
Net (gains)/losses on sale/disposal of fixed assets		1,816		19,182
(Gain)/loss on BOLI		(3,880)		(2,578)
Loans held-for-sale:
Purchases and originations		(1,096,917)		(1,003,375)
Gross proceeds from settlements and sales		322,517		361,895
(Gain)/loss due to fair value adjustments and other		6,619		36,138
Net (increase)/decrease in:
Trading securities		833,483		581,187
Fixed income receivables		(105,341)		(108,713)
Interest receivable		(6,917)		(6,120)
Other assets		(131,628)		7,394
Net increase/(decrease) in:
Trading liabilities		(272,839)		222,967
Fixed income payables		(24,800)		56,797
Interest payable		(9,850)		12,435
Other liabilities		9,183		(45,278)
Total adjustments		(576,092)		130,139
Net cash provided/(used) by operating activities		(502,955)		347,286
Available-for-sale securities:
Sales		8,703		171,423
Maturities		571,676		339,315
Purchases		(1,498,312)		(144,534)
Premises and equipment:
Sales		2,382		8,157
Purchases		(20,851)		(12,487)
Proceeds from sales of OREO		4,475		9,651
Proceeds from sale and pay down of loans classified as held-to-maturity		0		20,100
Proceeds from BOLI		7,826		8,945
Net (increase)/decrease in:
Loans		(1,648,847)		(2,183,862)
Interests retained from securitizations classified as trading securities		130		298
Interest-bearing cash		(2,653,439)		684,431
Net cash provided/(used) by investing activities		(5,226,257)		(1,098,563)
Common stock:
Stock options exercised		4,145		3,464
Cash dividends paid		(91,925)		(83,711)
Repurchase of shares	[1]	(3,543)		(105,658)
Cancellation of common shares	[2]	(1,892)		0
Preferred stock issuance		144,665		0
Cash dividends paid - preferred stock - noncontrolling interest		(5,734)		(5,703)
Cash dividends paid - Series A preferred stock		(3,100)		(3,100)
Term borrowings:
Issuance (c)		1,241,534	[3]	0
Payments/maturities		0		(1,180)
Increases/(decreases) in restricted and secured term borrowings		(5,483)		4,481
Net increase/(decrease) in:
Deposits		5,329,816		(374,675)
Short-term borrowings		(1,126,617)		1,161,739
Net cash provided/(used) by financing activities		5,481,866		595,657
Net increase/(decrease) in cash and cash equivalents		(247,346)		(155,620)
Cash and cash equivalents at beginning of period		1,266,893		1,405,325
Cash and cash equivalents at end of period		1,019,547		1,249,705
Supplemental Disclosures
Total interest paid		125,368		200,625
Total taxes paid		6,486		14,842
Total taxes refunded		541		27,742
Transfer from loans to OREO		1,888		3,343
Transfer from loans HFS to trading securities		$ 603,856		$ 802,259
[1]	2019 includes $101.7 million repurchased under share repurchase programs.
[2]	Represents shares canceled in connection with the resolution of remaining CBF dissenters' appraisal process.
[3]	In second quarter 2020, FHN issued $800 million of senior notes and First Horizon Bank issued $450 million of subordinated notes.

CONSOLIDATED CONDENSED STATEM_8

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Repurchase of shares	[1]		$ 105,658
Proceeds from issuance of senior long-term debt		$ 800,000
First Horizon Share Repurchase Program
Repurchase of shares			$ 101,700
First Horizon Bank
Proceeds from issuance of subordinated long-term debt		$ 450,000
[1]	2019 includes $101.7 million repurchased under share repurchase programs.

Financial Information

Financial Information	6 Months Ended
	Jun. 30, 2020
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 2020 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 Item 8 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2019 . 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, 2019, for a discussion of FHN's key revenues. Contract Balances. As of June 30, 2020 , accounts receivable related to products and services on non-interest income were $8.9 million . For the three months ended June 30, 2020 , 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 June 30, 2020 . Credit risk is assessed on these accounts receivable each reporting period and the amount of estimated uncollectible receivables is not material. Transaction Price Allocated to Remaining Performance Obligations. For the three and six months ended June 30, 2020 , 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 12– Business Segment Information for a reconciliation of disaggregated revenue by major product line and reportable segment. Debt Investment Securities. Debt securities that may be sold prior to maturity are classified as available-for-sale (“AFS”) and are carried at fair value. The unrealized gains and losses on debt securities AFS, including securities for which no credit impairment exists, are excluded from earnings and are reported, net of tax, as a component of other comprehensive income within shareholders’ equity and the Consolidated Condensed Statements of Comprehensive Income. Debt securities which management has the intent and ability to hold to maturity (“HTM”) are reported at amortized cost. Interest-only strips that are classified as securities AFS are valued at elected fair value. See Note 16 - Fair Value of Assets and Liabilities for additional information. Realized gains and losses (i.e., from sales) for debt investment securities are determined by the specific identification method and reported in noninterest income. In periods subsequent to 2019, the evaluation of credit risk for HTM debt securities mirrors the process described below for loans held-for-investment. AFS debt securities are reviewed for potential credit impairment at the individual security level. The evaluation of credit risk includes consideration of third-party and government guarantees (both explicit and implicit), senior or subordinated status, credit ratings of the issuer, the effects of interest rate changes since purchase and observable market information such as issuer-specific credit spreads. Credit losses for AFS debt securities are generally recognized through establishment of an allowance for credit losses that cannot exceed the amount by which amortized cost exceeds fair value. Charge offs are recorded as reductions of the security’s amortized cost and the credit allowance. Subsequent improvements in estimated credit losses result in reduction of the credit allowance, but not beyond zero. However, if FHN has the intent to sell or if it is more-likely-than-not that it will be compelled to sell a security with an unrecognized loss, the difference between the security's carrying value and fair value is recognized through earnings and a new amortized cost basis is established for the security (i.e., no allowance for credit losses is recognized). FHN has elected to exclude accrued interest receivable (“AIR”) from the fair value and amortized cost basis on AFS debt securities when assessing whether these securities have experienced credit impairment. Additionally, FHN has elected to not measure an allowance for credit losses on AIR for AFS debt securities based on its policy to write off uncollectible interest in a timely manner, which generally occurs when delinquency reaches no more than 90 days for all security types. Any such write offs are recognized as a reduction of interest income. AIR for AFS debt securities is included within Other assets in the Consolidated Condensed Statement of Condition. In periods prior to 2020, both AFS and HTM securities were reviewed quarterly for possible other-than-temporary impairment (“OTTI”). The review included an analysis of the facts and circumstances of each individual investment such as the degree of loss, the length of time the fair value had been below cost, the expectation for that security’s performance, the creditworthiness of the issuer and FHN’s intent and ability to hold the security. Declines in value judged to be other-than-temporary (“OTTI”) based on FHN’s analysis of the facts and circumstances related to an individual investment, including securities that FHN had the intent to sell, were determined by the specific identification method. For HTM debt securities, OTTI recognized was typically credit-related and was reported in noninterest income. For impaired AFS debt securities that FHN did not intend to sell and was not required to sell prior to recovery but for which credit losses existed, the OTTI recognized was allocated between the total impairment related to credit losses which was reported in noninterest income, and the impairment related to all other factors which was excluded from earnings and reported, net of tax, as a component of other comprehensive income within shareholders’ equity and the Consolidated Condensed Statements of Comprehensive Income. Fed Funds Sold and Purchased. Fed funds sold and purchased represent unsecured overnight funding arrangements between participants in the Federal Reserve system primarily to assist banks in meeting their regulatory cash reserve requirements. Fed Funds sold are evaluated for credit risk each reporting period. Due to the short duration of each transaction and the history of no credit losses, no credit loss has been recognized. Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase. FHN purchases short-term securities under agreements to resell which are accounted for as collateralized financings except where FHN does not have an agreement to sell the same or substantially the same securities before maturity at a fixed or determinable price. All of FHN’s securities purchased under agreements to resell are recognized as collateralized financings. Securities delivered under these transactions are delivered to either the dealer custody account at the FRB or to the applicable counterparty. Securities sold under agreements to repurchase are offered to cash management customers as an automated, collateralized investment account. Securities sold under agreements to repurchase are also used by the consumer/commercial bank to obtain favorable borrowing rates on its purchased funds. All of FHN's securities sold under agreements to repurchase are secured borrowings. Collateral is valued daily and FHN may require counterparties to deposit additional securities or cash as collateral, or FHN may return cash or securities previously pledged by counterparties, or FHN may be required to post additional securities or cash as collateral, based on the contractual requirements for these transactions. FHN’s fixed income business utilizes securities borrowing arrangements as part of its trading operations. Securities borrowing transactions generally require FHN to deposit cash with the securities lender. The amount of cash advanced is recorded within Securities purchased under agreements to resell in the Consolidated Condensed Statements of Condition. These transactions are not considered purchases and the securities borrowed are not recognized by FHN. FHN does not conduct securities lending transactions. Securities purchased under agreements to resell and securities borrowing arrangements are evaluated for credit risk each reporting period. As presented in Note 15 - Master Netting and Similar Agreements - Repurchase, Reverse Repurchase, and Securities Borrowing Transactions, these agreements are collateralized by the related securities and collateral maintenance provisions with counterparties, including replenishment and adjustment on a transaction specific basis. This collateral includes both the securities collateral for each transaction as well as offsetting securities sold under agreements to repurchase with the same counterparty. Given the history of no credit losses and collateralized nature of these transactions, no credit loss has been recognized. Loans. Generally, loans are stated at principal amounts outstanding, net of unearned income. Interest on loans is recognized on an accrual basis at the applicable interest rate on the principal amount outstanding. Loan origination fees and direct costs as well as premiums and discounts are amortized as level yield adjustments over the respective loan terms. Unamortized net fees or costs, premiums and discounts are recognized in interest income upon early repayment of the loans. Cash collections from loans that were fully charged off prior to acquisition are recognized in noninterest income. Loan commitment fees are generally deferred and amortized on a straight-line basis over the commitment period. FHN has elected to exclude accrued interest receivable (“AIR”) from the amortized cost basis on for its held-for-investment loan portfolio. FHN has also elected to not measure an allowance for credit losses on AIR for loans held-for-investment based on its policy to write off uncollectible interest in a timely manner, which occurs when a loan is placed on nonaccrual status. Such write offs are recognized as a reduction of interest income. AIR for held-for-investment loans is included within Other assets in the Consolidated Condensed Statements of Condition. FHN has continued to accrue interest on loans for which payment deferrals have been extended to borrowers affected by the COVID-19 pandemic ("COVID-19 Deferrals"). Deferrals are made for durations up to six months, which is beyond FHN's normal write-off practices for accrued interest. Therefore, these interest deferrals do not qualify for FHN's election to not recognize a credit loss allowance for accrued interest. Accordingly, FHN has estimated credit losses for COVID-19 interest deferrals which is included within AIR in Other assets in the Consolidated Condensed Statements of Condition. Purchased Credit-Deteriorated Loans. Subsequent to 2019, FHN evaluates all acquired loans to determine if they have experienced a more-than-insignificant deterioration in credit quality since origination (“PCD loans”). PCD loans can be identified on either an 1) individual or 2) pooled basis when the loans share similar risk characteristics. FHN evaluates various absolute factors to assist in the identification of PCD loans, including criteria such as, existing PCD status, risk rating of special mention or lower, nonaccrual or impaired status, identification of prior TDRs, and delinquency status. FHN also utilizes relative factors to identify PCD loans such as commercial loan grade migration, expansion of borrower credit spreads, declines in external risk ratings and changes in consumer loan characteristics (e.g., FICO decline or LTV increase). In addition, factors reflective of broad economic considerations are also considered in identifying PCD loans. These include industry, collateral type, and geographic location for the borrower’s operations. Internal factors for origination of new loans that are similar to the acquired loans are also evaluated to assess loans for PCD status, including increases in required yields, necessity of borrowers’ providing additional collateral and/or guarantees and changes in acceptable loan duration. Other indicators may also be used to evaluate loans for PCD status depending on borrower-specific communications and actions, such public statements, initiation of loan modification discussions and obtaining emergency funding from alternate sources. Upon acquisition, the expected credit losses are allocated to the purchase price of individual PCD loans to determine each individual assets amortized cost basis, typically resulting in a reduction of the discount that is accreted prospectively to interest income. At the acquisition date and prospectively, only the unpaid principal balance is incorporated within the estimation of expected credit losses for PCD loans. Otherwise, the process for estimate of expected credit losses is consistent with that discussed below. As discussed below FHN applies undiscounted cash flow methodologies for the estimation of expected credit losses, which results in the calculated amount of credit losses at acquisition that is added to the amortized cost basis of the related PCD loans to exceed the discounted value of estimated credit losses included in the loan valuation. Purchased Credit-Impaired Loans. Prior to 2020, ASC 310-30 “Accounting for Certain Loans or Debt Securities Acquired in a Transfer,” established guidance for acquired loans that exhibited deterioration of credit quality between origination and the time of acquisition and for which the timely collection of the interest and principal was not reasonably assured (“PCI loans”). PCI loans were initially recorded at fair value which was estimated by discounting expected cash flows at acquisition date. The expected cash flows included all contractually expected amounts (including interest) and incorporated an estimate for future expected credit losses, pre-payment assumptions, and yield requirement for a market participant, among other things. To the extent possible, certain PCI loans were aggregated into pools with composite interest rate and cash flows expected to be collected for the pool. Aggregation into loan pools was based upon common risk characteristics that include similar credit risk or risk ratings, and one or more predominant risk characteristics. Each PCI pool was accounted for as a single unit. Accretable yield was initially established at acquisition and is the excess of cash flows expected at acquisition over the initial investment in the loan and was recognized in interest income over the remaining life of the loan, or pool of loans. Nonaccretable difference was initially established at acquisition and was the difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition. FHN estimated expected cash flows for PCI loans on a quarterly basis. Increases in expected cash flows from the last measurement resulted in reversal of any nonaccretable difference (or allowance for loan losses to the extent any has previously been recorded) with a prospective positive impact on interest income. Decreases to the expected cash flows resulted in an increase in the allowance for loan losses through provision expense. FHN did not report PCI loans as nonperforming loans due to the accretion of interest income. Additionally, PCI loans that have been pooled and subsequently modified were not reported as troubled debt restructurings since the pool was the unit of measurement. Subsequent to 2019, PCI loans have transitioned to purchased-credit-deteriorated status and are accounted for as discussed above. Allowance for Loan Losses. The nature of the process by which FHN determines the appropriate ALLL requires the exercise of considerable judgment. See Note 5 - Allowance for Loan Losses for a discussion of FHN’s ALLL methodology and a description of the models utilized in the estimation process for the commercial and consumer loan portfolios. The discussion herein reflects periods before and after implementation of a change in credit loss estimation processes that was effective January 1, 2020. Future adjustments to the ALLL may be necessary if economic or other conditions differ substantially from the assumptions used in making the estimates or, if required by regulators, based upon information at the time of their examinations or upon future regulatory guidance. Such adjustments to original estimates, as necessary, are made in the period in which these factors and other relevant considerations indicate that loss levels vary from previous estimates. Subsequent to 2019 The ALLL is maintained at a level that management determines is sufficient to absorb current expected credit losses (“CECL”) in the loan portfolio. Management uses analytical models to estimate expected credit losses in the loan portfolio as of the balance sheet date. The models are carefully reviewed to identify trends that may not be captured in the modeled loss estimates. Management uses qualitative adjustments for those items not reflected in the modeled loss information such as recent changes from the macroeconomic forecasts utilized in model calculations, results of additional stressed modeling scenarios, observed and/or expected changes affecting borrowers in specific industries or geographic areas, exposure to large lending relationships and expected recoveries of prior charge offs. The ALLL is increased by the provision for loan losses and is decreased by loan charge-offs. The ALLL is determined in accordance with ASC 326-20 "Financial Instruments - Credit Losses.” Credit loss estimation is based on the amortized cost of Loans, net, which includes the following: 1. Unpaid principal balance for originated assets or acquisition price for purchased assets 2. Accrued interest (see elections discussed previously) 3. Accretion or amortization of premium, discount, and net deferred fees or costs 4. Collection of cash 5. Charge-offs 6. Foreign exchange adjustments (none for FHN) 7. Fair value hedge accounting adjustments (none for FHN) Premiums, discounts and net deferred origination costs/fees affect the calculated amount of expected credit losses but they are not considered when determining the amount of expected credit losses that are recorded. Under CECL, loans must be pooled when they share similar risk characteristics with other loans. Loans that do not share similar risk characteristics are evaluated individually. Expected credit loss is estimated for the remaining life of loan(s), which is limited to the remaining contractual term(s), adjusted for prepayment estimates, which are included as separate inputs into modeled loss estimates. Renewals and extensions are not anticipated unless they are included in existing loan documentation and are not unconditionally cancellable by the lender. However, losses are estimated over the estimated remaining life of reasonably expected TDRs which can extend beyond the current remaining contractual term. Estimates of expected credit losses incorporate consideration of available information that is relevant to assessing the collectability of future cash flows. This includes internal and external information relating to past events, current conditions and reasonable and supportable forecasts of future conditions. FHN utilizes internal historical loss information as the initial point for estimating expected credit losses. Given the duration of historical information available, FHN considers its internal loss history to fully incorporate the effects of prior credit cycles. The historical loss information may be adjusted in situations where current loan characteristics (e.g., underwriting criteria) differ from those in existence at the time the historical losses occurred. Historical loss information is also adjusted for differences in economic conditions, macroeconomic forecasts and other factors management considers relevant over a period extending beyond the measurement date which is considered reasonable and supportable. This reasonable and supportable period is followed by a reversion period after which loss estimates are based on long-term historical loss averages. FHN generally measures expected credit losses using undiscounted cash flow methodologies. Credit enhancements (e.g., guarantors) are considered in the estimation of uncollectible cash flows. Estimation of expected credit losses for loan agreements involving collateral maintenance provisions include consideration of the value of the collateral and replenishment requirements, with the maximum loss limited to the difference between the amortized cost of the loan and the fair value of the collateral. Expected credit losses for loans for which foreclosure is probable are measured at the fair value of collateral, less estimated costs to sell when disposition through sale is anticipated. Additionally, certain loans are valued at the fair value of collateral when repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty. Expected credit losses for TDRs are measured in accordance with ASC 310-40, which generally requires a discounted cash flow methodology, whereby the loans are measured based on the present value of expected future payments discounted at the loan’s original effective interest rate. Expected recoveries of previously charged-off amounts are also included as a qualitative adjustment in the estimation of expected credit losses, which reduces the amount of the allowance recognized. Estimates of recoveries on previously charged-off assets included in the valuation account do not exceed the aggregate of amounts previously written off and expected to be written off. Since CECL requires estimation of credit for the entire expected life of loans, loss estimates are highly sensitive to changes in macroeconomic forecasts, especially when those forecasts change dramatically in short time periods. Additionally, under CECL credit loss estimates are more likely to increase rapidly in periods of loan growth. Expected credit losses for unfunded commitments are estimated for periods where the commitment is not unconditionally cancellable by FHN. The measurement of expected credit losses for unfunded commitments mirrors that of loans with the additional estimate of future draw rates (timing and amount). Prior to 2020 The ALLL was maintained at a level that management determined was sufficient to absorb estimated probable incurred losses in the loan portfolio. The ALLL was increased by the provision for loan losses and loan recoveries and was decreased by loan charge-offs. The ALLL was determined in accordance with ASC 450-20-50 "Contingencies - Accruals for Loss Contingencies" and was composed of reserves for commercial loans evaluated based on pools of credit graded loans and reserves for pools of smaller-balance homogeneous consumer and commercial loans. The reserve factors applied to these pools were an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics. Additionally, the ALLL included specific reserves established in accordance with ASC 310-10-35 for loans determined by management to be individually impaired as well as reserves associated with PCI loans. Management used analytical models to estimate probable incurred losses in the loan portfolio as of the balance sheet date. The models, which were primarily driven by historical losses, were carefully reviewed to identify trends that may not have been captured in the historical loss factors used in the models. Management used qualitative adjustments for those items not yet captured in the models like then-current events, recent trends in the portfolio, current underwriting guidelines, and local and macroeconomic trends, among other things. Key components of the estimation process were as follows: (1) commercial loans determined by management to be individually impaired loans were evaluated individually and specific reserves were determined based on the difference between the outstanding loan amount and the estimated net realizable value of the collateral (if collateral dependent), the present value of expected future cash flows or by observable market prices; (2) individual commercial loans not considered to be individually impaired were segmented based on similar credit risk characteristics and evaluated on a pool basis; (3) reserve rates for the commercial segment were calculated based on historical net charge-offs and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); (4) management’s estimate of probable incurred losses reflected the reserve rates applied against the balance of loans in the commercial segment of the loan portfolio; (5) consumer loans were generally segmented based on loan type; (6) reserve amounts for each consumer portfolio segment were calculated using analytical models based on delinquency trends and net loss experience and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); and (7) the reserve amount for each consumer portfolio segment reflected management’s estimate of probable incurred losses in the consumer segment of the loan portfolio. Impairment related to individually impaired loans was measured in accordance with ASC 310-10. All commercial portfolio segments, commercial TDRs and other individually impaired commercial loans were measured based on the present value of expected future payments discounted at the loan’s effective interest rate (“the DCF method”), observable market prices, or for loans that are solely dependent on the collateral for repayment, the net realizable value (collateral value less estimated costs to sell). Impaired loans also included consumer TDRs. Summary of Accounting Changes. 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., HTM loans and debt securities) and 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 prior GAAP as the “incurred loss” methodology for recognizing credit losses delayed recognition until it was probable a loss had 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 are 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 are 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 is 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. Previously, credit losses for purchased credit-impaired assets were included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit were reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses are recognized through earnings upon acquisition and the entire premium or discount accreted to interest income over the remaining life of the loan. Credit allowances for acquired non-PCD assets are established through immediate recognition of credit loss expense (similar to originated loans) and do not consider purchase discounts related to estimated credit losses. The provisions of ASU 2016-13 were 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 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 are recorded in earnings when received. A prospective transition approach was used for existing PCD assets where, upon adoption, the amortized cost basis was increased to offset the initial recognition of the allowance for credit losses. Thus, an entity was not required to reassess its purchased financial assets that existed 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 accretes 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’s most significant implementation activities included review of loan portfolio segments and classes, identification and evaluation of collateral dependent loans and loans secured by collateral replenishment arrangements, selection of measurement methodologies and related model development, data accumulation and verification, development of loan life estimates, identification of reasonable and supportable forecast periods, selection of time lines and methods for reversion to unadjusted historical information, multiple preliminary analysis including parallel runs against existing loan loss estimation processes, and design and evaluation o

Acquisitions and Divestitures

Acquisitions and Divestitures	6 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures On July 1, 2020, FHN and IBERIABANK Corporation ("IBKC") closed their merger-of-equals transaction. FHN issued approximately 242 million shares of FHN common stock, plus three new series of preferred stock (Series B, Series C, and Series D) in a transaction valued at $2.5 billion . At the time of closing, IBKC operated 319 offices in 12 states, mostly in the southern and southeastern U.S. In the merger: FHN acquired approximately $34.7 billion in assets, including approximately $26.1 billion in loans and $3.5 billion in AFS securities; and, FHN assumed approximately $28.3 billion of IBKC deposits. Due to the timing of the merger closing in relation to quarter end and the uncertainty of valuations in the current economic environment, FHN's assessment of the fair value of IBKC's assets and liabilities is incomplete. However, FHN currently expects to recognize a purchase accounting gain. Total merger expenses for the IBKC merger recognized for the three and six months ended June 30, 2020 are presented in the table below: June 30, 2020 (Dollars in thousands) Three Months Ended Six Months Ended Professional fees (a) $ 3,748 $ 4,410 Employee compensation, incentives and benefits (b) 4,705 5,394 Miscellaneous expense (c) 1,003 1,257 Total IBKC acquisition expense $ 9,456 $ 11,061 (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily comprised of fees for travel and entertainment, contract employment, and other miscellaneous expenses. On July 17, 2020, First Horizon Bank completed its purchase of 30 branches from Truist Bank. As part of the transaction, FHN assumed approximately $2.2 billion of branch deposits for a 3.40 percent deposit premium and purchased approximately $423.7 million of branch loans. The branches are in communities in North Carolina ( 20 branches), Virginia ( 8 branches), and Georgia ( 2 branches). This transaction qualifies as a business combination. Due to the timing of the merger closing in relation to quarter end and the uncertainty of valuations in the current economic environment, FHN's assessment of the fair value of the acquired assets and liabilities is incomplete. See Note 2- Acquisitions and Divestitures in the Notes to Consolidated Financial Statements on Form 10-K for the year ended December 31, 2019, for additional information about FHN's other acquisitions. Expenses related to FHN's merger and integration activities are recorded in FHN's Corporate segment. Total other merger and integration expense recognized for the three and six months ended June 30, 2020 and 2019 are presented in the table below: Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Professional fees (a) $ 1,327 $ 4,478 $ 2,126 $ 6,345 Employee compensation, incentives and benefits (b) 87 1,472 483 2,989 Contract employment and outsourcing (c) 420 17 726 17 Occupancy (d) (82 ) 1,505 (107 ) 1,623 Miscellaneous expense (e) 503 79 1,325 1,148 All other expense (f) 2,610 1,096 4,484 2,185 Total $ 4,865 $ 8,647 $ 9,037 $ 14,307 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, internal technology development costs, costs of shareholder matters and asset impairments, 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 merger in 2017 that did not fit within FHN's risk profile. The sale resulted in the removal of approximately $25 million UPB of subprime consumer loans from Loans held-for-sale on FHN's Consolidated Condensed Statements of Condition.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2020
Marketable Securities [Abstract]
Investment Securities	Investment Securities The following tables summarize FHN’s investment securities on June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 999,974 $ 5 $ (4 ) $ 999,975 Government agency issued mortgage-backed securities (“MBS”) 2,383,956 103,506 (80 ) 2,487,382 Government agency issued collateralized mortgage obligations (“CMO”) 1,383,703 31,570 (8 ) 1,415,265 Other U.S. government agencies 403,008 14,284 — 417,292 Corporates and other debt 39,950 463 — 40,413 States and municipalities 83,155 7,228 — 90,383 $ 5,293,746 $ 157,056 $ (92 ) 5,450,710 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 25,446 Total securities available-for-sale (b) $ 5,476,156 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (119 ) $ 9,881 Total securities held-to-maturity $ 10,000 $ — $ (119 ) $ 9,881 (a) SBA-interest only strips are recorded at elected fair value. See Note 16 - Fair Value for additional information. (b) Includes $4.7 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 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 MBS 2,316,381 34,692 (2,556 ) 2,348,517 Government agency issued CMO 1,667,773 9,916 (7,197 ) 1,670,492 Other U.S. government agencies 303,463 3,750 (1,121 ) 306,092 Corporates and other debt 40,054 486 — 40,540 States and municipalities 57,232 3,324 (30 ) 60,526 $ 4,385,003 $ 52,168 $ (10,904 ) 4,426,267 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 19,136 Total securities available-for-sale (b) $ 4,445,403 Securities held-to-maturity: Corporates and other debt $ 10,000 $ 1 $ — $ 10,001 Total securities held-to-maturity $ 10,000 $ 1 $ — $ 10,001 (a) SBA-interest only strips are recorded at elected fair value. See Note 16 - 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 June 30, 2020 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 1,106,238 $ 1,108,000 After 1 year; within 5 years — — 137,571 142,491 After 5 years; within 10 years 10,000 9,881 3,573 9,623 After 10 years — — 278,705 313,395 Subtotal 10,000 9,881 1,526,087 1,573,509 Government agency issued MBS and CMO (a) — — 3,767,659 3,902,647 Total $ 10,000 $ 9,881 $ 5,293,746 $ 5,476,156 (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 six months ended June 30 , 2020 and 2019. Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Gross gains on sales of securities $ — $ — $ — $ — Gross (losses) on sales of securities — (267 ) — (267 ) Net gain/(loss) on sales of securities (a) $ — $ (267 ) $ — $ (267 ) (a) Cash proceeds for the three and six months ended June 30, 2020 were not material. Cash pro ceeds for the three and six months ended June 30, 2019 were $171.4 million . The following tables provide information on investments within the available-for-sale portfolio that had unrealized losses as of June 30, 2020 and December 31, 2019 : As of June 30, 2020 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 $ 499,895 $ (4 ) $ — $ — $ 499,895 $ (4 ) Government agency issued MBS 40,798 (80 ) — — 40,798 (80 ) Government agency issued CMO 15,982 (8 ) — — 15,982 (8 ) Total temporarily impaired securities $ 556,675 $ (92 ) $ — $ — $ 556,675 $ (92 ) As of December 31, 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 174,983 (495 ) 192,755 (2,061 ) 367,738 (2,556 ) Government agency issued CMO 378,815 (1,970 ) 361,124 (5,227 ) 739,939 (7,197 ) Other U.S. government agencies 98,471 (1,121 ) — — 98,471 (1,121 ) States and municipalities 3,551 (30 ) — — 3,551 (30 ) Total temporarily impaired securities $ 655,820 $ (3,616 ) $ 553,979 $ (7,288 ) $ 1,209,799 $ (10,904 ) For periods subsequent to 2019, FHN has evaluated all AFS debt securities that were in unrealized loss positions in accordance with its accounting policy for recognition of credit losses. No AFS debt securities were determined to have credit losses because the primary cause of the decline in value was attributable to changes in interest rates. Total AIR not included in the fair value or amortized cost basis of AFS debt securities was $12.4 million as of June 30, 2020 . Consistent with its review of the related securities, there were no credit-related write downs of AIR for AFS debt securities during the reporting period. Additionally, for AFS 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. Therefore, no write downs of these investments to fair value occurred during the reporting period. For periods prior to 2020, FHN reviewed debt investment securities that were in unrealized loss positions in accordance with its accounting policy for OTTI and did not consider them other-than-temporarily impaired. For debt securities with unrealized losses, FHN did not intend to sell them and it is more-likely-than-not that FHN would not be required to sell them prior to recovery. The decline in value was primarily attributable to changes in interest rates and not credit losses. The carrying amount of equity investments without a readily determinable fair value was $24.7 million and $25.6 million at June 30, 2020 and December 31, 2019 , respectively. The year-to-date 2020 and 2019 gross amounts of upward and downward valuation adjustments were not significant. Unrealized gains of $4.8 million and $1.2 million were recognized in the three months ended June 30, 2020 and 2019 , respectively, and unrealized losses of $0.9 million and unrealized gains of $4.6 million were recognized in the six months ended June 30, 2020 and 2019 , respectively, for equity investments with readily determinable fair values.

Loans

Loans	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Loans	Loans The following table provides the balance (amortized cost basis) of loans, net of unearned income, by portfolio segment as of June 30, 2020 and December 31, 2019 : June 30 December 31 (Dollars in thousands) 2020 2019 Commercial: Commercial, financial, and industrial $ 21,393,893 $ 20,051,091 Commercial real estate 4,813,341 4,337,017 Consumer: Consumer real estate (a) 6,052,393 6,177,139 Credit card & other 449,310 495,864 Loans, net of unearned income $ 32,708,937 $ 31,061,111 Allowance for loan losses 537,881 200,307 Total net loans $ 32,171,056 $ 30,860,804 (a) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio; all prior periods were revised for comparability. 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 ("LMC"), the trust preferred loans (“TRUPS”) (i.e. long-term unsecured loans to bank and insurance-related businesses) portfolio and purchased credit-impaired (“PCI”) loans (for periods prior to 2020). 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 (for periods prior to 2020). Consumer loan portfolio segments include consumer real estate, and the credit card and other portfolio. Consumer classes include home equity lines of credit (“HELOCs”), real estate (“R/E”) installment and PCI loans (for periods prior to 2020) within the consumer real estate segment and credit card and other. Credit Risk Characteristics Inherent in the Loan Portfolio Credit risk is the risk of loss due to adverse changes in a borrower’s or counterparty’s ability to meet its financial obligations under agreed upon terms. FHN is subject to credit risk in lending, trading, investing, liquidity/funding, and asset management activities although lending activities have the most exposure to credit risk. The nature and amount of credit risk depends on the types of transaction, the structure of those transactions, collateral received, the use of guarantors and the parties involved. FHN assesses and manages credit risk through a series of policies, processes, measurement systems, and controls. FHN’s credit risk function ensures subject matter experts are providing oversight, support and credit approvals, particularly in the specialty lending areas where industry-specific knowledge is required. Management emphasizes general portfolio servicing such that emerging risks are able to be identified early enough to correct potential deficiencies, prevent further credit deterioration, and mitigate credit losses. Commercial Loans The C&I portfolio is comprised of loans used for general business purposes. Typical products including working capital lines of credit, term loan financing of owner-occupied real estate and fixed assets, and trade credit enhancement through letters of credit. FHN utilizes deal teams comprised of relationship managers (RMs), portfolio managers (PMs), credit analysts and other specialists to identify, mitigate, document, and manage ongoing risk. Their function includes enhanced analytical support during loan origination and servicing, monitoring the financial condition of the borrower, and tracking compliance with loan agreements. FHN strives to identify problem assets early through comprehensive policies and guidelines, targeted portfolio reviews, more frequent servicing on lower rated borrowers, and an emphasis on frequent grading. To the extent a guarantor/sponsor is used to support a commercial lending decision, FHN analyzes capability to pay, factoring in, among other things, liquidity and direct/indirect cash flows. A strong, legally enforceable guaranty can mitigate the risk of default or loss, justify a less severe rating, and consequently reduce the level of allowance or charge-off that might otherwise be deemed appropriate. 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. Approximately 95 percent of the loans to mortgage companies are collateralized with government guaranteed loans. The loans are of short duration with maturities less than one year. TRUPS loans are long-term unsecured loans to bank and insurance-related businesses. TRUPS lending was originally extended as a form of “bridge” financing to participants in the pooled trust preferred securitization program offered primarily to smaller banking (generally less than $15 billion in total assets) and insurance institutions through FHN’s fixed income business. Origination of TRUPS lending ceased in early 2008. Individual TRUPS are regraded at least quarterly as part of FHN’s commercial loan review process. Commercial Real Estate loans include financings for commercial construction and nonconstruction loans. The income-producing CRE class contains loans and draws on lines and letters of credit to commercial real estate developers for the construction and mini-permanent financing of income-producing real estate. The residential CRE class includes loans to residential builders and developers for the purpose of constructing single-family homes, condominiums, and town homes and on a limited basis, for developing residential subdivisions. Active residential CRE lending is primarily focused in certain core markets with nearly all new originations made to “strategic” clients. FHN considers a “strategic” residential CRE borrower as a homebuilder who demonstrates the ability to withstand cyclical downturns, maintains active development and investment activities providing for regular financing opportunities, and is fundamentally sound as evidenced by a prudent loan structure, appropriate covenants and recourse, and capable and willing sponsors in markets with positive homebuilding and economic dynamics. The credit administration and ongoing monitoring of these portfolios consists of multiple internal control processes including stressing a borrower’s or project’s financial capacity utilizing numerous attributes such as interest rates, vacancy, and discount rates. Key information captured from the various portfolios is aggregated and utilized to assist with the assessment and adequacy of the ALLL and to steer portfolio management strategies. Paycheck Protection Program Loans Included in commercial loans are $2.1 billion of C&I loans made under the Paycheck Protection Program ("PPP Loans") of the Small Business Administration ("SBA"). PPP Loans have been extended to businesses in response to the economic effects of the COVID-19 pandemic. PPP Loans are fully government guaranteed with the SBA making prepayments through a provision whereby partial or complete forgiveness is granted based on the nature and extent of each borrower's expenditures in relation to program requirements for payroll-related and other types of expenses. PPP Loans have maximum terms ranging from two to five years, with SBA prepayments expected to occur in the latter half of 2020 and the first half of 2021. Amounts not forgiven by the SBA will amortize over the applicable remaining loan term. Due to the government guarantee and forgiveness provisions, PPP Loans are considered to have no credit risk and receive no risk weighting for capital calculations. Consumer Loans The consumer real estate portfolio is primarily comprised of home equity lines and installment loans within FHN’s regional banking segment and jumbo mortgages and one-time-close (“OTC”) completed construction loans in FHN’s non-strategic segment that were originated through pre-2009 mortgage businesses. The corporate segment also includes loans that were previously included in off-balance sheet proprietary securitization trusts that were brought back into the loan portfolios at fair value through the execution of cleanup calls due to the relatively small balances left in the securitization and should continue to run-off. Generally performance of this portfolio is affected by life events that affect borrowers’ finances, the level of unemployment, and home prices. FHN obtains first lien performance information from third parties and through loss mitigation activities. FHN performs continuous HELOC account review processes in order to identify higher-risk home equity lines and initiate preventative and corrective actions. The reviews consider a number of account activity patterns and characteristics such as the number of times delinquent within recent periods, changes in credit bureaus score since origination, scored degradation, performance of the first lien, and account utilization. In accordance with FHN’s interpretation of regulatory guidance, FHN may block future draws on accounts in order to mitigate risk of loss to FHN. The credit card and other portfolio is primarily comprised of automobile loans, credit card receivables, and other consumer-related credits. As discussed in Note 1 - Summary of Significant Accounting Policies, the ALLL estimation process was revised on January 1, 2020 to reflect the adoption of ASU 2016-13. All information contained in the following disclosures reflects the application of requirements from the adoption of ASU 2016-13 for periods after 2019. Information for periods prior to 2020 has been retained with the content consistent with prior disclosures. Concentrations FHN has a concentration of residential real estate loans ( 19 percent of total loans). Loans to finance and insurance companies total $2.5 billion ( 12 percent of the C&I portfolio, or 8 percent of the total loans). FHN had loans to mortgage companies totaling $4.0 billion ( 19 percent of the C&I segment, or 12 percent of total loans) as of June 30, 2020 . As a result, 31 percent of the C&I segment is sensitive to impacts on the financial services industry. 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. PD grades assigned through FHN’s risk rating process are used as a loan level input to inform probability of default forecasts under certain macroeconomic scenarios. 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 amortized cost basis of the commercial loan portfolio by year of origination and credit quality indicator as of June 30, 2020 : C&I (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 (a) LMC (b) Revolving Revolving Total PD Grade: 1 (d) $ 2,078,712 $ 99,978 $ 121,167 $ 75,521 $ 106,700 $ 108,574 $ — $ 83,309 $ 56 $ 2,674,017 2 56,810 223,191 100,816 79,318 168,838 90,484 — 95,035 126 814,618 3 42,983 153,671 49,176 89,945 30,381 97,338 741,382 125,470 3,490 1,333,836 4 261,626 335,130 145,047 122,185 129,859 142,129 685,876 259,379 10,653 2,091,884 5 304,710 496,565 220,632 145,650 96,325 163,676 700,944 384,874 12,654 2,526,030 6 360,649 714,704 246,607 195,634 53,597 155,755 1,198,775 667,570 558 3,593,849 7 309,088 723,728 339,953 145,385 100,069 171,016 552,192 598,772 48,291 2,988,494 8 343,391 593,106 194,030 175,289 36,044 96,204 93,900 379,261 7,110 1,918,335 9 171,524 293,768 89,519 66,927 65,539 75,753 25,198 283,883 10,670 1,082,781 10 96,735 171,901 85,644 60,721 50,429 54,729 15,325 227,301 5,082 767,867 11 53,872 82,677 74,977 58,964 70,190 38,059 — 148,656 3,233 530,628 12 51,861 33,083 52,013 47,162 20,214 29,674 6,999 95,943 477 337,426 13 39,047 57,585 10,231 15,916 51,816 45,984 — 114,971 498 336,048 14,15,16 10,898 23,808 39,008 29,306 40,627 13,194 — 98,165 2,548 257,554 Collectively evaluated for impairment 4,181,906 4,002,895 1,768,820 1,307,923 1,020,628 1,282,569 4,020,591 3,562,589 105,446 21,253,367 Individually evaluated for impairment 21,146 6,613 12,454 21,995 1,909 22,114 — 50,319 3,976 140,526 Total C&I loans $ 4,203,052 $ 4,009,508 $ 1,781,274 $ 1,329,918 $ 1,022,537 $ 1,304,683 $ 4,020,591 $ 3,612,908 $ 109,422 $ 21,393,893 (a) TRUPS loans were originated prior to 2016. Total balance of TRUPS as of June 30, 2020 is $209.2 million , with $3.3 million in PD 3, $60.9 million in PD 4, $47.9 million in PD 5, $38.6 million in PD 6, $13.4 million in PD 7, $20.7 million in PD 9, $18.6 million in PD 10, and $5.8 million in PD 13. (b) LMC includes non-revolving 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. The loans are of short duration with maturities less than one year. (c) $22.7 million of C&I loans were converted from revolving to term in 2020. (d) 2020 balance includes PPP loans. Income CRE (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 Revolving Revolving Total PD Grade: 1 $ 21,886 $ — $ 392 $ 106 $ 158 $ 1,190 $ — $ — $ 23,732 2 7,798 30,919 405 216 617 3,145 — — 43,100 3 97,338 212,413 75,483 34,863 42,468 25,511 78,004 181 566,261 4 90,915 292,657 100,058 130,549 94,836 45,975 839 238 756,067 5 320,904 279,229 138,520 152,573 112,018 45,048 37,306 6,224 1,091,822 6 264,892 215,714 125,075 107,697 33,716 119,742 37,800 7,930 912,566 7 164,896 293,784 121,601 64,796 20,076 24,648 40,187 1,224 731,212 8 23,028 93,700 55,579 11,850 28,382 50,403 6,845 128 269,915 9 35,357 36,942 25,157 22,936 2,219 19,126 280 — 142,017 10 23,623 8,323 7,323 2,803 9,125 17,320 — — 68,517 11 6,936 21,414 6,890 7,347 3,862 19,638 — 1,330 67,417 12 2,962 14,437 2,383 905 652 13,476 64 228 35,107 13 525 455 771 16,185 — 570 328 — 18,834 14,15,16 515 10,808 45 19,065 128 3,882 7,553 — 41,996 Collectively evaluated for impairment 1,061,575 1,510,795 659,682 571,891 348,257 389,674 209,206 17,483 4,768,563 Individually evaluated for impairment — — — — — 160 — — 160 Total CRE-IP $ 1,061,575 $ 1,510,795 $ 659,682 $ 571,891 $ 348,257 $ 389,834 $ 209,206 $ 17,483 $ 4,768,723 Residential CRE (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 Revolving Revolving Total PD Grade: 1 $ — $ — $ — $ — $ — $ 20 $ — $ — $ 20 2 — — — — — — — — — 3 — 151 268 482 — 95 — — 996 4 — 722 — — — 106 — — 828 5 93 — — — 76 12 — — 181 6 14,512 106 43 333 30 234 — — 15,258 7 348 470 2,904 1,776 — 241 13 — 5,752 8 467 24 443 — 6 89 100 — 1,129 9 325 520 262 — 490 76 — — 1,673 10 179 960 277 — — 6 — — 1,422 11 4,093 8,660 218 156 — 50 — — 13,177 12 154 1,530 44 — — 538 — — 2,266 13 1,310 — — — — 132 — — 1,442 14,15,16 171 264 — — — 39 — — 474 Collectively evaluated for impairment 21,652 13,407 4,459 2,747 602 1,638 113 — 44,618 Individually evaluated for impairment — — — — — — — — — Total CRE-RES $ 21,652 $ 13,407 $ 4,459 $ 2,747 $ 602 $ 1,638 $ 113 $ — $ 44,618 The following table provides the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of December 31, 2019. December 31, 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 $ 696,040 $ — $ — $ 1,848 $ — $ 697,888 3 % $ 69 2 767,048 — — 48,906 38 815,992 4 165 3 743,123 877,210 3,314 474,067 806 2,098,520 9 274 4 1,237,772 692,971 46,375 680,223 477 2,657,818 11 738 5 1,986,761 670,402 72,512 993,628 1,700 3,725,003 15 8,265 6 2,511,290 1,410,387 27,263 717,062 17,027 4,683,029 19 12,054 7 2,708,707 509,616 18,378 641,345 30,925 3,908,971 16 20,409 8 1,743,364 136,771 — 269,407 16,699 2,166,241 9 22,514 9 1,101,873 77,139 31,909 169,586 13,007 1,393,514 6 17,484 10 563,635 21,229 18,536 59,592 2,153 665,145 3 10,197 11 495,140 — — 81,682 2,302 579,124 2 13,454 12 262,906 15,158 — 28,807 1,074 307,945 1 8,471 13 232,823 — — 32,966 1,126 266,915 1 8,142 14,15,16 263,076 — — 43,400 626 307,102 1 29,318 Collectively evaluated for impairment 15,313,558 4,410,883 218,287 4,242,519 87,960 24,273,207 100 151,554 Individually evaluated for impairment 82,438 — — 1,563 — 84,001 — 6,196 Purchased credit-impaired loans 25,925 — — 4,155 820 30,900 — 848 Total commercial loans $ 15,421,921 $ 4,410,883 $ 218,287 $ 4,248,237 $ 88,780 $ 24,388,108 100 % $ 158,598 (a) Balances presented net of a $19.1 million valuation allowance. 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 amortized cost basis by year of origination and refreshed FICO scores for consumer real estate as of June 30, 2020 . Within consumer real estate, classes include home equity line of credit ("HELOC") and real estate installment. HELOCs are loans which during their draw period are classified as revolving loans. Once the draw period ends and the loan enters its repayment period, the loan converts to a term loan and is classified as revolving loans converted to term loans. All loans classified in the following table as revolving loans or revolving loans converted to term loans are HELOCs. Real estate installment loans are originated as a fixed term loan and are classified below in their vintage year from prior to 2016 to 2020. All loans in the following table classified in a vintage year are real estate installment loans. Consumer Real Estate (Dollars in thousands) 2020 2019 2018 2017 2016 Prior to 2016 Revolving Revolving Total FICO score 740 or greater $ 394,137 $ 576,132 $ 410,188 $ 420,822 $ 527,019 $ 1,255,357 $ 626,844 $ 135,436 $ 4,345,935 FICO score 720-739 43,808 67,904 26,383 37,259 48,677 132,407 76,045 28,913 461,396 FICO score 700-719 31,459 66,155 28,201 26,164 45,038 110,244 54,941 29,613 391,815 FICO score 660-699 41,314 51,096 33,382 32,745 36,625 153,335 76,593 44,067 469,157 FICO score 620-659 12,524 17,140 10,922 12,789 13,178 70,067 24,185 29,940 190,745 FICO score less than 620 2,180 11,168 5,832 9,227 14,456 79,599 25,526 45,357 193,345 Total $ 525,422 $ 789,595 $ 514,908 $ 539,006 $ 684,993 $ 1,801,009 $ 884,134 $ 313,326 $ 6,052,393 (a) $10.8 million of HELOC loans were converted from revolving to term in 2020. The following table reflects the amortized cost basis by year of origination and refreshed FICO scores for other consumer loans as of June 30, 2020 . Other Consumer (Dollars in thousands) 2020 2019 2018 2017 2016 Prior to 2016 Revolving Revolving Total FICO score 740 or greater $ 16,160 $ 36,450 $ 21,476 $ 10,499 $ 3,988 $ 14,774 $ 173,832 $ 4,401 $ 281,580 FICO score 720-739 3,238 5,226 2,784 1,615 747 1,844 27,603 1,319 44,376 FICO score 700-719 2,168 4,246 2,542 1,521 706 1,980 19,983 1,052 34,198 FICO score 660-699 3,654 6,546 3,149 2,172 1,423 2,737 27,534 1,581 48,796 FICO score 620-659 1,269 2,386 1,576 891 836 1,813 10,759 963 20,493 FICO score less than 620 333 1,059 1,044 522 2,311 3,167 10,037 1,394 19,867 Total $ 26,822 $ 55,913 $ 32,571 $ 17,220 $ 10,011 $ 26,315 $ 269,748 $ 10,710 $ 449,310 (a) $3.9 million of other consumer loans were converted from revolving to term in 2020. The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC and real estate installment classes of loans as of December 31, 2019. December 31, 2019 (Dollars in thousands) HELOC R/E Installment Loans (b) FICO score 740 or greater 62.0 % 71.9 % FICO score 720-739 8.6 8.3 FICO score 700-719 7.6 6.3 FICO score 660-699 10.8 8.1 FICO score 620-659 4.7 2.8 FICO score less than 620 (a) 6.3 2.6 Total 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. (b) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability. Nonaccrual and Past Due Loans Nonperforming loans are loans placed on nonaccrual if it becomes evident that full collection of principal and interest is at risk, impairment has been recognized as a partial charge-off of principal balance due to insufficient collateral value and past due status, or on a case-by-case basis if FHN continues to receive payments but there are other borrower-specific issues. Included in nonaccruals are loans that FHN continues to receive payments including residential real estate loans where the borrower has been discharged of personal obligation through bankruptcy, and second liens, regardless of delinquency status, behind first liens that are 90 or more days past due, are bankruptcies, or are TDRs. Past due loans are loans contractually past due as to interest or principal payments, but which have not yet been put on nonaccrual status. The following table reflects accruing and non-accruing loans by class on June 30, 2020 : 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 (a) $ 17,031,822 $ 4,671 $ 287 $ 17,036,780 $ 79,022 $ 254 $ 48,069 $ 127,345 $ 17,164,125 Loans to mortgage companies 4,019,766 825 — 4,020,591 — — — — 4,020,591 TRUPS (b) 209,177 — — 209,177 — — — — 209,177 Total commercial (C&I) 21,260,765 5,496 287 21,266,548 79,022 254 48,069 127,345 21,393,893 Commercial real estate: Income CRE 4,766,561 95 — 4,766,656 797 — 1,270 2,067 4,768,723 Residential CRE 44,618 — — 44,618 — — — — 44,618 Total commercial real estate 4,811,179 95 — 4,811,274 797 — 1,270 2,067 4,813,341 Consumer real estate: HELOC 1,136,288 5,736 6,800 1,148,824 41,608 1,720 5,308 48,636 1,197,460 R/E installment loans 4,787,467 13,778 6,000 4,807,245 31,786 2,077 13,825 47,688 4,854,933 Total consumer real estate 5,923,755 19,514 12,800 5,956,069 73,394 3,797 19,133 96,324 6,052,393 Credit card & other: Credit card 164,527 1,520 1,297 167,344 — — — — 167,344 Other 281,066 531 114 281,711 86 77 92 255 281,966 Total credit card & other 445,593 2,051 1,411 449,055 86 77 92 255 449,310 Total loans, net of unearned income $ 32,441,292 $ 27,156 $ 14,498 $ 32,482,946 $ 153,299 $ 4,128 $ 68,564 $ 225,991 $ 32,708,937 (a) $65.3 million of general C&I loans are nonaccrual loans with no related allowance. (b) TRUPS is presented net of an amortizing discount of $18.4 million . The following table reflects accruing and non-accruing loans by class on December 31, 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 $ 15,314,292 $ 7,155 $ 237 $ 15,321,684 $ 36,564 $ 14,385 $ 23,363 $ 74,312 $ 15,395,996 Loans to mortgage companies 4,410,883 — — 4,410,883 — — — — 4,410,883 TRUPS (a) 218,287 — — 218,287 — — — — 218,287 Purchased credit-impaired loans 23,840 287 1,798 25,925 — — — — 25,925 Total commercial (C&I) 19,967,302 7,442 2,035 19,976,779 36,564 14,385 23,363 74,312 20,051,091 Commercial real estate: Income CRE 4,242,044 679 — 4,242,723 — 19 1,340 1,359 4,244,082 Residential CRE 87,487 7 — 87,494 — 466 — 466 87,960 Purchased credit-impaired loans 4,752 128 95 4,975 — — — — 4,975 Total commercial real estate 4,334,283 814 95 4,335,192 — 485 1,340 1,825 4,337,017 Consumer real estate: HELOC 1,217,344 9,156 5,669 1,232,169 43,007 4,227 7,472 54,706 1,286,875 R/E installment loans (b) 4,812,446 12,894 9,170 4,834,510 20,710 1,076 9,202 30,988 4,865,498 Purchased credit-impaired loans 18,720 2,770 3,276 24,766 — — — — 24,766 Total consumer real estate 6,048,510 24,820 18,115 6,091,445 63,717 5,303 16,674 85,694 6,177,139 Credit card & other: Credit card 198,917 1,076 1,178 201,171 — — — — 201,171 Other 291,700 1,802 337 293,839 101 44 189 334 294,173 Purchased credit-impaired loans 323 98 99 520 — — — — 520 Total credit card & other 490,940 2,976 1,614 495,530 101 44 189 334 495,864 Total loans, net of unearned income $ 30,841,035 $ 36,052 $ 21,859 $ 30,898,946 $ 100,382 $ 20,217 $ 41,566 $ 162,165 $ 31,061,111 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $19.1 million . (b) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability. 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. Prior to 2020, Consumer real estate mortgage TDRs (previously classified as permanent mortgage) were 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 stepped up 1 percent every year until it reached the Federal Home Loan Mortgage Corporation Weekly Survey Rate cap. Contractual maturities may be extended to 40 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 June 30, 2020 and December 31, 2019 , FHN had $192.6 million and $206.3 million of portfolio loans classified as TDRs, respectively. For TDRs in the loan portfolio, FHN had loan loss reserves of $13.6 million , or 7 percent as of June 30, 2020 , and $19.7 million , or 10 percent as of December 31, 2019 . Additionally, $45.1 million and $51.1 million of loans held-for-sale as of June 30, 2020 and December 31, 2019 , respectively, were classified as TDRs. The following tables reflect portfolio loans that were classified as TDRs during the three and six months ended June 30, 2020 and 2019 : Three Months Ended June 30, 2020 Six Months Ended June 30, 2020 (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 $ 4,649 $ 4,699 4 $ 10,576 $ 9,132 Total commercial (C&I) 1 4,649 4,699 4 10,576 9,132 Consumer real estate: HELOC 4 152 151 12 1,064 1,042 R/E installment loans 40 7,793 7,741 50 9,304 9,238 Total consumer real estate 44 7,945 7,892 62 10,368 10,280 Credit card & other 16 96 91 40 254 237 Total troubled debt restructurings 61 $ 12,690 $ 12,682 106 $ 21,198 $ 19,649 Three Months Ended June 30, 2019 Six Months Ended June 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 $ 222 $ 222 3 $ 14,117 $ 14,042 Total commercial (C&I) 1 222 222 3 14,117 14,042 Consumer real estate: HELOC 25 3,27

Allowance for Loan Losses

Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses As discussed in Note 1 - Summary of Significant Accounting Policies, the ALLL estimation process was revised on January 1, 2020 to reflect the adoption of ASU 2016-13. All information contained in the following disclosures reflects the application of requirements from the adoption of ASU 2016-13 for periods after 2019. Information for periods prior to 2020 has been retained with the content consistent with prior disclosures. Periods after 2019 The ALLL has been determined in accordance with ASC 326-20, which requires a recognition of current expected credit losses on the amortized cost basis of loans. During the first half of 2020, expected credit loss estimates were adversely affected across all portfolio segments due to the steep decline in macroeconomic forecasts due to the actual and projected effects of the COVID-19 pandemic. To a lesser extent, loan growth also resulted in a higher ALLL as those increased balances received a full life-of-loan allowance based on current macroeconomic projections. For all portfolio segments, FHN has selected a 4-year reasonable and supportable forecast period which reflects a 3-year period during which macroeconomic variables are used to estimate expected credit losses. This is followed by a 1-year, time-weighted reversion to historical loss factors with weights assigned to macroeconomic variables diminishing, and weights assigned to historical loss averages increasing, pro rata as months lapse during the 1-year period. Thereafter, FHN immediately reverts to historical loss averages over the remaining estimated life of loans. In developing credit loss estimates for its loan portfolio, FHN evaluated multiple macroeconomic forecasts provided by Moody’s. FHN selected Moody’s baseline forecast as the primary source for its macroeconomic inputs which are inclusive of the following assumptions related to the economic effects of the COVID-19 pandemic: • 1.6mm confirmed COVID-19 cases, begin to abate by early July. Assumes no second wave. • Unemployment peak at 20mm in 2Q20 • Annualized GDP growth rate of -33% in 2Q20, 16% in 3Q20, & 0.6% in 4Q20 • Quicker recovery than Great Recession • V-shaped recovery for housing including residential construction and sales • Manufacturing should have a stronger initial bounce • More caution due to COVID-19 drives a slower and longer recovery for the service sector; may depend on vaccine. Where macroeconomic forecast variables used in the models do not take into effect the impact of federal stimulus and bank-supported payment deferral and forbearance programs on the timing of grade migration and recognition of loss content, management adjusted model inputs qualitatively to account for this assistance. FHN also utilized targeted reviews of higher stressed loan portfolio (industries) that are most exposed to the effects of the COVID-19 pandemic, including Franchise Finance, Energy, Non-Profit, Arts & Entertainment, Restaurants outside of Franchise Finance, Nursing/Assisted Living and Hospitality within the C&I segment and CRE-Hospitality and CRE-Retail within the Commercial Real Estate segment. This analysis reviewed the level of impact from COVID-19 and the likelihood of additional financial assistance needed beyond 180 days. This analysis was utilized in developing qualitative adjustments to increase the recorded ALLL attributable to these components beyond the modeled results. FHN reviewed consumer deferrals and forbearance payment rates to analyze the likelihood customers will have difficulty making payments after the deferral or forbearance period ends. The analysis was utilized to develop an additional qualitative adjustment to increase the recorded ALLL for consumer real estate loans. Management also made qualitative adjustments to reflect estimated recoveries based on a review of prior charge off and recovery levels, for default risk associated with large balances with individual borrowers, for estimated loss amounts not reflected in historical factors due to specific portfolio risk and for instances where limited data for acquired loans is considered to affect modeled results. Typically commercial loans in C&I and CRE have shorter expected lives, based on the contractual term of loan agreements, prepayment estimates and a limited amount of renewal or extension options that are not unconditionally cancellable by FHN. Estimated weighted average lives are normally under 3 years . TRUPs loans are an exception due to longer contractual lives, beneficial borrower terms and balloon payoff structure. Consumer HELOC and installment loans tend to have significantly longer lives based on their contractual terms which is reduced somewhat by estimated prepayments with estimated weighted average lives normally 5 years or less. Credit card loans have shorter estimated lives approximating 1 year based on customer payment trends and because the revolving lines are unconditionally cancellable by FHN. As of June 30, 2020 , FHN had General C&I loans with amortized cost of approxima tely $65 million that was based on the value of underlying collateral. At a minimum, the estimated value of the collateral for each loan equals the current book value. The collateral for these loans generally consists of business assets including land, buildings, equipment and financial assets. During the three and six months ended June 30, 2020 , respectively, FHN recognized charge-offs of approxima tely $1.5 million a nd $13.0 million on these loans related to reductions in estimated collateral values. Consumer HELOC and installment loans with amortized cost based on the value of underlying real estate collateral were approximatel y $10 million and $26 million , respectively, as of June 30, 2020 . At a minimum, the estimated value of the collateral for each loan equals the current book value. Charge offs during the three and six months ended June 30, 2020 were not significant for either portfolio segment. Unfunded Commitments The measurement of expected credit losses for unfunded commitments mirrors that of loans with the additional estimate of future draw rates (timing and amount). Consistent with the ALLL, the decline in macroeconomic forecasts during the first half of 2020 resulted in higher credit expense for unfunded commitments. However, in Q1 2020 this effect of higher loss forecasts was offset somewhat because many borrowers drew on available lines prior to the end of the 1st quarter which resulted in higher loan balances (and ALLL). During the second quarter, borrowers paid down on available lines which combined with higher loss rates caused credit loss expense to increase. Total credit loss expense for unfunded commitments was $11.2 million and $20.4 million , respectively, for the three and six months ended June 30, 2020 . Periods prior to 2020 The ALLL included 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, and to a lesser extent, 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. For commercial loans, ASC 450-20-50 reserves were established using historical net loss factors by grade level, loan product, and business segment. The ALLL for smaller-balance homogeneous consumer loans was determined based on pools of similar loan types that have similar credit risk characteristics. ASC 450-20-50 reserves for the consumer portfolio were determined using segmented roll-rate models that incorporated various factors including historical delinquency trends, experienced loss frequencies, and experienced loss severities. Generally, reserves for consumer loans reflected inherent losses in the portfolio that were expected to be recognized over the following twelve months. The historical net loss factors for both commercial and consumer ASC 450-20-50 reserve models were subject to qualitative adjustments by management to reflect current events, trends, and conditions (including economic considerations and trends), which were not fully captured in the historical net loss factors. The pace of the economic recovery, performance of the housing market, unemployment levels, labor participation rate, the regulatory environment, regulatory guidance, and portfolio segment-specific trends, were examples of additional factors considered by management in determining the ALLL. Additionally, management considered the inherent uncertainty of quantitative models that were driven by historical loss data. Management evaluated the periods of historical losses that were the basis for the loss rates used in the quantitative models and selected historical loss periods that were believed to be the most reflective of losses inherent in the loan portfolio as of the balance sheet date. Management also periodically reviewed an analysis of the loss emergence period which was the amount of time required for a loss to be confirmed (initial charge-off) after a loss event had occurred. FHN performed extensive studies related to the historical loss periods used in the model and the loss emergence period and model assumptions were adjusted accordingly. Impairment related to individually impaired loans was measured in accordance with ASC 310-10. For all commercial portfolio segments, commercial TDRs and other individually impaired commercial loans were measured based on the present value of expected future payments discounted at the loan’s effective interest rate (“the DCF method”), observable market prices, or for loans that are solely dependent on the collateral for repayment, the net realizable value (collateral value less estimated costs to sell). Impaired loans also included consumer TDRs. Generally, the allowance for TDRs in all consumer portfolio segments was determined by estimating the expected future cash flows using the modified interest rate (if an interest rate concession), incorporating payoff and net charge-off rates specific to the TDRs within the portfolio segment being assessed, and discounted using the pre-modification interest rate. The discount rates of variable rate TDRs were adjusted to reflect changes in the interest rate index to which the rates are tied. The discounted cash flows were then compared to the outstanding principal balance in order to determine required reserves. Residential real estate loans discharged through bankruptcy were considered collateral-dependent and were charged down to net realizable value (collateral value less estimated costs to sell). The following table provides a rollforward of the allowance for loan losses by portfolio segment for the three and six months ended June 30, 2020 and 2019 : (Dollars in thousands) C&I Commercial Real Estate Consumer Real Estate (a) Credit Card and Other Total Balance as of April 1, 2020 $ 254,516 $ 47,625 $ 123,022 $ 19,327 $ 444,490 Charge-offs (18,201 ) (61 ) (1,968 ) (2,677 ) (22,907 ) Recoveries 1,073 156 3,987 1,082 6,298 Provision/(provision credit) for loan losses 81,334 9,565 18,716 385 110,000 Balance as of June 30, 2020 318,722 57,285 143,757 18,117 537,881 Balance as of January 1, 2020 122,486 36,112 28,443 13,266 200,307 Adoption of ASU 2016-13 18,782 (7,348 ) 92,992 1,968 106,394 Charge-offs (24,952 ) (642 ) (4,278 ) (6,488 ) (36,360 ) Recoveries 2,008 729 7,542 2,261 12,540 Provision/(provision credit) for loan loses 200,398 28,434 19,058 7,110 255,000 Balance as of June 30, 2020 318,722 57,285 143,757 18,117 537,881 Allowance - individually evaluated for impairment 16,577 — 13,275 352 30,204 Allowance - collectively evaluated for impairment 302,145 57,285 130,482 17,765 507,677 Loans, net of unearned as of June 30, 2020: Individually evaluated for impairment 140,526 160 148,543 688 289,917 Collectively evaluated for impairment 21,253,367 4,813,181 5,903,850 448,622 32,419,020 Total loans, net of unearned income (b) $ 21,393,893 $ 4,813,341 $ 6,052,393 $ 449,310 $ 32,708,937 Balance as of April 1, 2019 $ 103,713 $ 34,382 $ 34,154 $ 12,662 $ 184,911 Charge-offs (6,590 ) (121 ) (1,714 ) (3,798 ) (12,223 ) Recoveries 519 (88 ) 5,525 1,105 7,061 Provision/(provision credit) for loan losses 18,454 (1,220 ) (6,433 ) 2,199 13,000 Balance as of June 30, 2019 116,096 32,953 31,532 12,168 192,749 Balance as of January 1, 2019 98,947 31,311 37,439 12,727 180,424 Charge-offs (9,691 ) (555 ) (4,518 ) (7,986 ) (22,750 ) Recoveries 1,348 (31 ) 9,566 2,192 13,075 Provision/(provision credit) for loan losses 25,492 2,228 (10,955 ) 5,235 22,000 Balance as of June 30, 2019 116,096 32,953 31,532 12,168 192,749 Allowance - individually evaluated for impairment 8,484 — 22,255 442 31,181 Allowance - collectively evaluated for impairment 106,758 32,953 8,199 11,669 159,579 Allowance - purchased credit-impaired loans 854 — 1,078 57 1,989 Loans, net of unearned as of June 30, 2019: Individually evaluated for impairment 115,808 1,777 182,442 699 300,726 Collectively evaluated for impairment 18,904,621 3,852,027 6,093,863 492,774 29,343,285 Purchased credit-impaired loans 33,840 7,227 26,829 903 68,799 Total loans, net of unearned income $ 19,054,269 $ 3,861,031 $ 6,303,134 $ 494,376 $ 29,712,810 a) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability . b) C&I loans as of June 30, 2020 include $2.1 billion in PPP loans which due to the government guarantee and forgiveness provisions are considered to have no credit risk and therefore have no allowance for loan losses. In accordance with its accounting policy elections, FHN does not recognize a separate allowance for expected credit losses for AIR and records reversals of AIR as reductions of interest income. FHN reverses previously accrued but uncollected interest when an asset is placed on nonaccrual status. As of June 30, 2020 , FHN recognized approximately $860 thousand in allowance for expected credit losses on COVID-19 deferrals that do not qualify for the election. The total amount of interest reversals from loans placed on nonaccrual status during the three and six months ended June 30, 2020 was not material. In addition, the amount of income recognized on nonaccrual loans for the three and six months ended in June 30, 2020 was not material.

Intangible Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2020
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: June 30, 2020 December 31, 2019 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (56,561 ) $ 100,589 $ 157,150 $ (47,372 ) $ 109,778 Customer relationships (a) 23,000 (6,158 ) 16,842 77,865 (60,150 ) 17,715 Other (b) 5,622 (3,445 ) 2,177 5,622 (2,915 ) 2,707 Total $ 185,772 $ (66,164 ) $ 119,608 $ 240,637 $ (110,437 ) $ 130,200 (a) 2020 decrease in gross carrying amounts and accumulated amortization associated with $54.9 million of customer relationships fully amortized at December 31, 2019. (b) Balance primarily includes noncompete covenants, as well as $ .3 million related to state banking licenses not subject to amortization. Amortization expense was $5.3 million and $6.2 million for the three months ended June 30, 2020 and 2019 , respectively and $10.6 million and $12.4 million for six months ended June 30, 2020 and 2019 , respectively. As of June 30, 2020 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2020 $ 10,568 2021 19,547 2022 17,412 2023 16,117 2024 14,679 2025 12,580 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 June 30, 2020 and December 31, 2019 . 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 June 30, 2020 and December 31, 2019 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — June 30, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 December 31, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — June 30, 2020 $ 1,289,819 $ 142,968 $ 1,432,787

Other Income And Other Expense

Other Income And Other Expense	6 Months Ended
	Jun. 30, 2020
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 Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 All other income and commissions: Deferred compensation (a) $ 8,171 $ 1,938 $ (1,336 ) $ 7,412 Other service charges 4,582 5,624 9,801 9,493 Mortgage banking 4,138 2,572 6,569 4,458 ATM and interchange fees 4,009 4,262 8,221 7,503 Letter of credit fees 1,559 1,253 3,021 2,621 Electronic banking fees 1,182 1,267 2,212 2,538 Dividend income 1,057 1,809 2,187 4,122 Insurance commissions 401 566 1,190 1,190 Gain/(loss) on extinguishment of debt — — — (1 ) Other 4,890 6,376 12,488 10,962 Total $ 29,989 $ 25,667 $ 44,353 $ 50,298 All other expense: Credit expense on unfunded commitments (b) $ 11,158 $ (489 ) $ 20,388 $ (93 ) Non-service components of net periodic pension and post-retirement cost 2,961 559 5,469 991 Other insurance and taxes 2,599 2,495 5,278 5,189 Miscellaneous loan costs 2,356 857 3,450 1,884 Supplies 1,933 1,342 4,344 3,146 Employee training and dues 654 1,251 1,995 2,708 Customer relations 632 1,540 2,636 3,139 Travel and entertainment 474 2,906 3,183 5,618 OREO 437 25 253 (341 ) Tax credit investments 426 267 772 942 Litigation and regulatory matters (c) 3 (8,230 ) 16 (8,217 ) Other 12,118 26,158 21,193 33,046 Total $ 35,751 $ 28,681 $ 68,977 $ 48,012 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense; Six months ended June 30, 2020 decrease driven by equity market valuations. (b) Three and six months ended June 30, 2020 increases largely driven by the economic forecast attributabl e to the COVID-19 pandemic. (c) Litigation and regulatory matters for the three and six months ended June 30, 2019 includes an $8.3 million expense reversal related to the settlement of litigation matters within the Non-Strategic segment.

Components of Other Comprehensi

Components of Other Comprehensive Income/(loss)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30, 2020 and 2019 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of April 1, 2020 $ 119,357 $ 16,288 $ (271,809 ) $ (136,164 ) Net unrealized gains/(losses) (1,030 ) 1,640 — 610 Amounts reclassified from AOCI — (1,623 ) 2,379 756 Other comprehensive income/(loss) (1,030 ) 17 2,379 1,366 Balance as of June 30, 2020 $ 118,327 $ 16,305 $ (269,430 ) $ (134,798 ) Balance as of January 1, 2020 $ 31,079 $ 3,227 $ (273,914 ) $ (239,608 ) Net unrealized gains/(losses) 87,248 14,795 — 102,043 Amounts reclassified from AOCI — (1,717 ) 4,484 2,767 Other comprehensive income/(loss) 87,248 13,078 4,484 104,810 Balance as of June 30, 2020 $ 118,327 $ 16,305 $ (269,430 ) $ (134,798 ) (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of April 1, 2019 $ (27,121 ) $ (6,725 ) $ (287,305 ) $ (321,151 ) Net unrealized gains/(losses) 47,991 7,575 — 55,566 Amounts reclassified from AOCI 201 1,334 1,561 3,096 Other comprehensive income/(loss) 48,192 8,909 1,561 58,662 Balance as of June 30, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 ) Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 96,606 11,511 — 108,117 Amounts reclassified from AOCI 201 2,785 3,024 6,010 Other comprehensive income/(loss) 96,807 14,296 3,024 114,127 Balance as of June 30, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 ) Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Six Months Ended Details about AOCI 2020 2019 2020 2019 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ 267 $ — $ 267 Debt securities gains/(losses), net Tax expense/(benefit) — (66 ) — (66 ) Provision/(benefit) for income taxes — 201 — 201 Cash flow hedges: Realized (gains)/losses on cash flow hedges (2,153 ) 1,772 (2,277 ) 3,699 Interest and fees on loans Tax expense/(benefit) 530 (438 ) 560 (914 ) Provision/(benefit) for income taxes (1,623 ) 1,334 (1,717 ) 2,785 Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 3,155 2,074 5,946 4,017 All other expense Tax expense/(benefit) (776 ) (513 ) (1,462 ) (993 ) Provision/(benefit) for income taxes 2,379 1,561 4,484 3,024 Total reclassification from AOCI $ 756 $ 3,096 $ 2,767 $ 6,010

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
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 Six Months Ended (Dollars and shares in thousands, except per share data) 2020 2019 2020 2019 Net income/(loss) $ 56,665 $ 113,742 $ 73,137 $ 217,147 Net income attributable to noncontrolling interest 2,851 2,852 5,703 5,672 Net income/(loss) attributable to controlling interest 53,814 110,890 67,434 211,475 Preferred stock dividends 1,550 1,550 3,100 3,100 Net income/(loss) available to common shareholders $ 52,264 $ 109,340 $ 64,334 $ 208,375 Weighted average common shares outstanding—basic 312,090 314,063 311,843 315,740 Effect of dilutive securities 846 1,723 949 1,980 Weighted average common shares outstanding—diluted 312,936 315,786 312,792 317,720 Net income/(loss) per share available to common shareholders $ 0.17 $ 0.35 $ 0.21 $ 0.66 Diluted income/(loss) per share available to common shareholders $ 0.17 $ 0.35 $ 0.21 $ 0.66 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 Six Months Ended (Shares in thousands) 2020 2019 2020 2019 Stock options excluded from the calculation of diluted EPS 5,134 2,773 3,291 2,692 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 15.80 $ 21.03 $ 18.26 $ 21.39 Other equity awards excluded from the calculation of diluted EPS 4,389 2,403 3,934 1,985

Contingencies And Other Disclos

Contingencies And Other Disclosures	6 Months Ended
	Jun. 30, 2020
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 types of matters are discussed relating to FHN’s pre-2009 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 June 30, 2020 , the aggregate amount of liabilities established for all such loss contingency matters was $.3 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 June 30, 2020 , FHN is unable to estimate any material reasonably possible loss ("RPL") 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 In the first quarter of 2020, a former shareholder of Capital Bank Financial Corp. ("CBF") filed a putative class action suit, Searles v. DeMartini et al, No. 2020-0136 (Del. Chancery), against certain former directors, officers, and shareholders of CBF, alleging, among other things, that defendants breached certain fiduciary duties in connection with CBF's merger with FHN in 2017. Plaintiff claims unspecified damages related to the merger consideration and opportunity loss. FHN is unable to estimate an RPL range for this matter due to significant uncertainties regarding: whether a class will be certified and, if so, the composition of the class; the amount of potential damages that might be awarded, if any; of any such damages amount, the amount that FHN would be obliged to indemnify; the availability of applicable insurance; and the outcome of discovery, which has not yet begun. Exposures from pre-2009 Mortgage Business 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 losses in connection with mortgage loans securitized by the buyer of the loans. 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 is contending with 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 until April 2020, 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 pre-2009 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 FHN’s repurchase and foreclosure liability, primarily related to its pre-2009 mortgage businesses, 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 $12.9 million and $14.5 million as of June 30, 2020 and December 31, 2019 , 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	6 Months Ended
	Jun. 30, 2020
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 no contributions to the qualified pension plan in 2019. Management does not currently anticipate that FHN will make a contribution to the qualified pension plan for the remainder of 2020. 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 $5.2 million for 2019 . FHN anticipates making benefit payments under the non-qualified plans of $5.2 million in 2020 . 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 June 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2020 2019 2020 2019 Components of net periodic benefit cost Service cost $ 8 $ 8 $ 24 $ 24 Interest cost 5,910 7,575 307 351 Expected return on plan assets (6,169 ) (9,173 ) (311 ) (269 ) Amortization of unrecognized: Prior service cost/(credit) — — 8 — Actuarial (gain)/loss 3,224 2,435 (79 ) (117 ) Net periodic benefit cost/(credit) $ 2,973 $ 845 $ (51 ) $ (11 ) The components of net periodic benefit cost for the six months ended June 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2020 2019 2020 2019 Components of net periodic benefit cost Service cost $ 16 $ 16 $ 49 $ 48 Interest cost 11,819 15,150 611 702 Expected return on plan assets (12,337 ) (18,346 ) (622 ) (538 ) Amortization of unrecognized: Prior service cost/(credit) — — 16 — Actuarial (gain)/loss 6,448 4,870 (154 ) (234 ) Net periodic benefit cost/(credit) $ 5,946 $ 1,690 $ (100 ) $ (22 )

Business Segment Information

Business Segment Information	6 Months Ended
	Jun. 30, 2020
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 the southeast U.S. 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, 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 six months ended June 30 : Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Consolidated Net interest income $ 305,344 $ 303,610 $ 608,146 $ 598,118 Provision/(provision credit) for loan losses (a) 110,000 13,000 255,000 22,000 Noninterest income 206,269 157,993 381,025 299,038 Noninterest expense 332,168 300,394 643,487 596,484 Income/(loss) before income taxes 69,445 148,209 90,684 278,672 Provision/(benefit) for income taxes 12,780 34,467 17,547 61,525 Net income/(loss) $ 56,665 $ 113,742 $ 73,137 $ 217,147 Average assets $ 47,934,074 $ 41,243,007 $ 45,742,993 $ 41,064,093 (a) Increase in provision expense for the three and six months ended June 30, 2020 is primarily due to the economic forecast attributable to the COVID-19 pandemic. Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Regional Banking Net interest income $ 349,749 $ 297,534 $ 649,936 $ 583,636 Provision/(provision credit) for loan losses (a) 108,311 17,776 253,752 31,218 Noninterest income 79,312 81,565 161,208 154,626 Noninterest expense 202,297 192,413 413,331 391,043 Income/(loss) before income taxes 118,453 168,910 144,061 316,001 Provision/(benefit) for income taxes 26,948 39,788 31,349 73,909 Net income/(loss) $ 91,505 $ 129,122 $ 112,712 $ 242,092 Average assets $ 35,732,966 $ 30,210,728 $ 33,952,986 $ 29,515,773 Fixed Income Net interest income $ 13,545 $ 6,171 $ 24,459 $ 13,503 Noninterest income 113,235 65,622 208,958 119,429 Noninterest expense 83,039 55,534 164,102 106,067 Income/(loss) before income taxes 43,741 16,259 69,315 26,865 Provision/(benefit) for income taxes 10,679 3,840 16,778 6,297 Net income/(loss) $ 33,062 $ 12,419 $ 52,537 $ 20,568 Average assets $ 3,260,362 $ 3,127,305 $ 3,512,277 $ 2,988,548 Corporate Net interest income/(expense) $ (63,493 ) $ (7,146 ) $ (76,852 ) $ (15,060 ) Noninterest income (b) 12,943 9,401 9,225 22,754 Noninterest expense (b) (c) (d) 43,218 56,873 58,667 98,652 Income/(loss) before income taxes (93,768 ) (54,618 ) (126,294 ) (90,958 ) Provision/(benefit) for income taxes (25,097 ) (13,525 ) (31,469 ) (25,296 ) Net income/(loss) $ (68,671 ) $ (41,093 ) $ (94,825 ) $ (65,662 ) Average assets $ 8,168,307 $ 6,827,937 $ 7,476,249 $ 7,439,591 Non-Strategic Net interest income $ 5,543 $ 7,051 $ 10,603 $ 16,039 Provision/(provision credit) for loan losses (a) 1,689 (4,776 ) 1,248 (9,218 ) Noninterest income 779 1,405 1,634 2,229 Noninterest expense 3,614 (4,426 ) 7,387 722 Income/(loss) before income taxes 1,019 17,658 3,602 26,764 Provision/(benefit) for income taxes 250 4,364 889 6,615 Net income/(loss) $ 769 $ 13,294 $ 2,713 $ 20,149 Average assets $ 772,439 $ 1,077,037 $ 801,481 $ 1,120,181 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Increase in provision expense for the three and six months ended June 30, 2020 is primarily due to the economic forecast attributable to the COVID-19 pandemic. (b) Balance for the six months ended June 30, 2020 includes a decrease due to fluctuations in deferred compensation income driven by equity market valuations and mirrored by changes in deferred compensation expense, which is included in employee compensation expense. (c) 2020 and 2019 include acquisition-related expenses and restructuring-related costs associated with efficiency initiatives; refer to Note 2 - Acquisitions and Divestitures and Note 17 - Restructuring, Repositioning, and Efficiency for additional information. (d) Three and six months ended June 30, 2019 includes $9.1 million 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 June 30, 2020 and 2019 : Three months ended June 30, 2020 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 81 $ 112,340 $ — $ — $ 112,421 Deposit transactions and cash management 29,541 — 1,204 42 30,787 Brokerage, management fees and commissions 13,800 — — — 13,800 Trust services and investment management 7,750 — (17 ) — 7,733 Bankcard income 6,551 — 74 27 6,652 BOLI (b) — — 6,380 — 6,380 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — (1,493 ) — (1,493 ) All other income and commissions (c) 21,589 895 6,795 710 29,989 Total noninterest income $ 79,312 $ 113,235 $ 12,943 $ 779 $ 206,269 (a) Includes $8.8 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 June 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 46 $ 65,262 $ — $ 1,106 $ 66,414 Deposit transactions and cash management 30,632 1 1,707 34 32,374 Brokerage, management fees and commissions 14,120 — — — 14,120 Trust services and investment management 7,902 — (14 ) — 7,888 Bankcard income 6,597 — 60 (302 ) 6,355 BOLI (b) — — 5,126 — 5,126 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 316 — 316 All other income and commissions (c) 22,268 359 2,473 567 25,667 Total noninterest income $ 81,565 $ 65,622 $ 9,401 $ 1,405 $ 157,993 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $7.1 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. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the six months ended June 30, 2020 and 2019 : Six Months Ended June 30, 2020 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 202 $ 207,854 $ — $ — $ 208,056 Deposit transactions and cash management 58,368 — 2,640 69 61,077 Brokerage, management fees and commissions 29,205 — — — 29,205 Trust services and investment management 14,963 — (35 ) — 14,928 Bankcard income 13,703 — 143 59 13,905 BOLI (b) — — 10,969 — 10,969 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — (1,468 ) — (1,468 ) All other income and commissions (c) (d) 44,767 1,104 (3,024 ) 1,506 44,353 Total noninterest income $ 161,208 $ 208,958 $ 9,225 $ 1,634 $ 381,025 (a) Includes $18.1 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. (d) Corporate balance includes negative deferred compensation income driven by equity market valuations. Six Months Ended June 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 63 $ 118,994 $ — $ 1,106 $ 120,163 Deposit transactions and cash management 60,658 4 3,270 63 63,995 Brokerage, management fees and commissions 26,753 — — — 26,753 Trust services and investment management 14,958 — (44 ) — 14,914 Bankcard income 13,640 — 122 (455 ) 13,307 BOLI (b) — — 9,528 — 9,528 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 347 — 347 All other income and commissions (c) 38,554 431 9,798 1,515 50,298 Total noninterest income $ 154,626 $ 119,429 $ 22,754 $ 2,229 $ 299,038 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $14.4 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.

Variable Interest Entities

Variable Interest Entities	6 Months Ended
	Jun. 30, 2020
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 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 the carrying value of assets and liabilities associated with rabbi trusts used for deferred compensation plans which are consolidated by FHN as of June 30, 2020 and December 31, 2019 : ( Dollars in thousands ) June 30, 2020 December 31, 2019 Assets: Other assets $ 93,212 $ 91,873 Total assets $ 93,212 $ 91,873 Liabilities: Other liabilities $ 71,783 $ 70,830 Total liabilities $ 71,783 $ 70,830 Nonconsolidated Variable Interest Entities Low Income Housing Partnerships. First Horizon Community Investment Group, Inc. ("FHCIG"), a wholly-owned subsidiary of First Horizon Bank, 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 not material for the three or six months ended June 30, 2020 and 2019. The following table summarizes the impact to the Provision/(benefit) for income taxes on the Consolidated Condensed Statements of Income for the three and six months ended June 30, 2020 , and 2019 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended Six Months Ended ( Dollars in thousands ) 2020 2019 2020 2019 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 5,752 $ 4,287 $ 11,313 $ 8,285 Low income housing tax credits (4,758 ) (3,522 ) (9,356 ) (7,151 ) Other tax benefits related to qualifying LIHTC investments (2,583 ) (1,609 ) (5,138 ) (3,219 ) Other Tax Credit Investments. First Tennessee New Markets Corporation (“FTNMC”), a wholly-owned subsidiary of First Horizon Bank, periodically 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. As of June 30, 2020 and December 31, 2019, there were no investments funded through loans from community development enterprises. 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 . First Horizon Bank holds variable interests in trusts which have issued mandatorily redeemable preferred capital securities (“trust preferreds”) for smaller banking and insurance enterprises. First Horizon Bank 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 First Horizon Bank. 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 First Horizon Bank’s holdings, First Horizon Bank 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 First Horizon Bank. However, since First Horizon Bank 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. First Horizon Bank has no contractual requirements to provide financial support to the trusts. On-Balance Sheet Trust Preferred Securitization. In 2007, First Horizon Bank 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. First Horizon Bank 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 First Horizon Bank did not retain servicing or other decision making rights, First Horizon Bank 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, First Horizon Bank has accounted for the funds received through the securitization as a term borrowing in its Consolidated Condensed Statements of Condition. First Horizon Bank 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, First Horizon Bank 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 First Horizon Bank 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, First Horizon Bank is exposed to potentially significant benefits and losses of the borrowing entity. First Horizon Bank 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 . First Horizon Bank 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, First Horizon Bank loaned funds to a related party of the buyer that were used for the purchase price of the building. First Horizon Bank 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 First Horizon Bank 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 First Horizon Bank 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, First Horizon Bank 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 June 30, 2020 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 248,712 $ 124,318 (a) Other tax credit investments (b) 5,959 — Other assets Small issuer trust preferred holdings (c) 209,177 — Loans, net of unearned income On-balance sheet trust preferred securitization 32,144 82,030 (d) Proprietary residential mortgage securitizations 628 — Trading securities Holdings of agency mortgage-backed securities (c) 4,561,144 — (e) Commercial loan troubled debt restructurings (f) 43,432 — Loans, net of unearned income Sale-leaseback transaction 18,052 — (g) Proprietary trust preferred issuances (h) — 167,014 Term borrowings (a) Maximum loss exposure represents $124.4 million of current investments and $124.3 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 2024. (b) A liability is not recognized as investments are written down over the life of the related tax credit. Maximum loss exposure represents the value of current investments. (c) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (d) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $82.0 million classified as Term borrowings. (e) Includes $.7 billion classified as Trading securities and $3.9 billion classified as Securities available-for-sale. (f) Maximum loss exposure represents $43.4 million of current receivables and contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring were non-material . (g) Maximum loss exposure represents the current loan balance plus additional funding commitments. (h) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 237,668 $ 136,404 (a) Other tax credit investments (b) (c) 6,282 — Other assets Small issuer trust preferred holdings (d) 238,397 — Loans, net of unearned income On-balance sheet trust preferred securitization 33,265 80,908 (e) Proprietary residential mortgage securitizations 941 — Trading securities Holdings of agency mortgage-backed securities (d) 4,537,685 — (f) Commercial loan troubled debt restructurings (g) 45,169 — Loans, net of unearned income Sale-leaseback transaction 18,111 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $101.3 million of current investments and $136.4 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 2023. (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. As of December 31, 2019, there were no investments 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 $80.9 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.0 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $43.4 million of current receivables and $ 1.8 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	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and December 31, 2019 , respectively, FHN had $230.2 million and $136.6 million of cash receivables and $130.6 million and $53.0 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 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 $100.3 million and $54.5 million for the three months ended June 30, 2020 and 2019 , and $178.6 million and $99.0 million for the six months ended June 30, 2020 and 2019 , 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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 3,667,914 $ 254,246 $ 1,827 Offsetting upstream interest rate contracts 3,667,914 7,454 17,667 Forwards and futures purchased 7,351,632 31,853 787 Forwards and futures sold 7,744,323 3,555 29,696 December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,697,522 $ 65,768 $ 6,858 Offsetting upstream interest rate contracts 2,697,522 2,583 3,994 Option contracts purchased 40,000 131 — Forwards and futures purchased 9,217,350 17,029 3,187 Forwards and futures sold 9,403,112 3,611 16,620 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 designated a derivative transaction in a hedging strategy to manage interest rate risk on $400.0 million of senior debt issued by First Horizon Bank prior to its maturity in December 2019. This qualified 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. First Horizon Bank 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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 3,679,991 $ 297,233 $ 258 Offsetting upstream interest rate contracts 3,679,991 4,877 24,922 Debt Hedging Hedging Instruments: Interest rate swaps $ 500,000 $ 27 N/A Hedged Items: Term borrowings: Par N/A N/A $ 500,000 Cumulative fair value hedging adjustments N/A N/A 2,142 Unamortized premium/(discount) and issuance costs N/A N/A (296 ) Total carrying value N/A N/A $ 501,846 December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 3,044,067 $ 90,394 $ 3,515 Offsetting upstream interest rate contracts 3,044,067 3,537 9,735 Debt Hedging Hedging Instruments: Interest rate swaps $ 500,000 N/A $ 69 Hedged Items: Term borrowings: Par N/A N/A $ 500,000 Cumulative fair value hedging adjustments N/A N/A (1,604 ) Unamortized premium/(discount) and issuance costs N/A N/A (740 ) Total carrying value N/A N/A $ 497,656 The following table summarizes gains/(losses) on FHN’s derivatives associated with interest rate risk management activities for the three and six months ended June 30, 2020 and 2019 : Three Months Ended Six Months Ended 2020 2019 2020 2019 (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) $ 15,844 $ 50,706 $ 211,396 $ 79,818 Offsetting upstream interest rate contracts (a) (15,844 ) (50,706 ) (211,396 ) (79,818 ) Debt Hedging Hedging Instruments: Interest rate swaps (b) $ (737 ) $ 6,697 $ 4,197 $ 10,976 Hedged Items: Term borrowings (a) (c) 720 (6,605 ) (3,745 ) (10,871 ) (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 years and seven years . The debt instruments primarily consist of held-to-maturity commercial loans that have variable interest payments based on 1-month LIBOR. $200 million of these swaps expired in first quarter 2020. 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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 700,000 $ 29 $ 48 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 700,000 N/A December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 241 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 six months ended June 30, 2020 and 2019 : Three Months Ended Six Months Ended 2020 2019 2020 2019 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 69 $ 11,896 $ 17,443 $ 19,114 Gain/(loss) recognized in Other comprehensive income/(loss) 1,640 7,575 14,795 11,511 Gain/(loss) reclassified from AOCI into Interest income (1,623 ) 1,334 (1,717 ) 2,785 (a) Approximately $9.6 million of pre-tax gains 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 later received final court approval in December 2019. In accordance with the agreement terms, several individual plaintiffs opted out of the settlement and have the opportunity to separately pursue resolution with Visa. 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 First Horizon Bank. FHN has not received or paid collateral related to this contract. As of June 30, 2020 and December 31, 2019 , the derivative liabilities associated with the sales of Visa Class B shares were $18.0 million and $22.8 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 June 30, 2020 and December 31, 2019 , these loans were valued at $13.8 million and $18.4 million , respectively. The balance sheet amount and the gains/losses associated with these derivatives were not significant. Related to its loan participation/syndication activities, FHN enters into risk participation agreements, under which it assumes exposure for, or receives indemnification for, borrowers’ performance on underlying interest rate derivative contracts. FHN’s counterparties in these contracts are other lending institutions involved in the loan participation/syndication arrangements for which the underlying interest rate derivative contract is intended to hedge interest rate risk for the borrower. FHN will make (other institution is the lead bank) or receive (FHN is the lead bank) payments for risk participations if the borrower defaults on its obligation to perform under the terms of its interest rate derivative agreement with the lead bank in the participation. As of June 30, 2020 the notional values of FHN’s risk participations were $93.8 million of derivative assets and $246.1 million of derivative liabilities. The notional value for risk participation/syndication agreements is consistent with the percentage of participation in the lending arrangement. FHN’s maximum exposure or benefit in the risk participation agreements is contingent on the fair value of the underlying interest rate derivative contracts for which the borrower is in a liability position at the time of default. FHN monitors the credit risk associated with the borrowers to which the risk participations relate through the same credit risk assessment process utilized for establishing credit loss estimates for its loan portfolio. These credit risk estimates are included in the determination of fair value for the risk participations. As of June 30, 2020 , FHN had recognized $170 thousand of derivative assets and $830 thousand of derivative liabilities associated with risk participation agreements. 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 initial 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 First Horizon Bank is lowered, FHN could be required to post additional collateral with the counterparties. Conversely, if the credit rating of FHN and/or First Horizon Bank 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 First Horizon Bank 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 interest rate derivative instruments with adjustable collateral posting thresholds was $253.7 million of assets and $3.8 million of liabilities on June 30, 2020 , and $63.1 million of assets and $6.4 million of liabilities on December 31, 2019 . As of June 30, 2020 and December 31, 2019 , FHN had received collateral of $340.0 million and $148.5 million and posted collateral of $43.5 million and $18.4 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 First Horizon Bank’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 interest rate derivative instruments with credit-risk-related contingent accelerated termination provisions was $253.6 million of assets and $25.5 million of liabilities on June 30, 2020 , and $63.1 million of assets and $10.3 million of liabilities on December 31, 2019 . As of June 30, 2020 and December 31, 2019 , FHN had received collateral of $340.0 million and $148.5 million and posted collateral of $65.1 million and $22.7 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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 Interest rate derivative contracts $ 564,037 $ — $ 564,037 $ (2,253 ) $ (348,497 ) $ 213,287 Forward contracts 35,408 — 35,408 (6,927 ) (12,590 ) 15,891 $ 599,445 $ — $ 599,445 $ (9,180 ) $ (361,087 ) $ 229,178 December 31, 2019 Interest rate derivative contracts $ 162,344 $ — $ 162,344 $ (5,604 ) $ (143,334 ) $ 13,406 Forward contracts 20,640 — 20,640 (13,292 ) (2,000 ) 5,348 $ 182,984 $ — $ 182,984 $ (18,896 ) $ (145,334 ) $ 18,754 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of June 30, 2020 and December 31, 2019 , $.3 million and $.1 million , respectively, of derivative assets have been excluded from these tables because they are generally not subject to master netting or similar agreements. The following table provides details of derivative liabilities and collateral pledged as presented on the Consolidated Condensed Statements of Condition as of June 30, 2020 and December 31, 2019 : 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: June 30, 2020 Interest rate derivative contracts $ 44,743 $ — $ 44,743 $ (2,253 ) $ (38,832 ) $ 3,658 Forward contracts 30,483 — 30,483 (6,927 ) (23,556 ) — $ 75,226 $ — $ 75,226 $ (9,180 ) $ (62,388 ) $ 3,658 December 31, 2019 Interest rate derivative contracts $ 24,431 $ — $ 24,431 $ (5,604 ) $ (18,689 ) $ 138 Forward contracts 19,807 — 19,807 (13,292 ) (6,515 ) — $ 44,238 $ — $ 44,238 $ (18,896 ) $ (25,204 ) $ 138 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of June 30, 2020 and December 31, 2019 , $19.2 million and $23.2 million , respectively, of derivative liabilities (primarily Visa-related derivatives) have been excluded from these tables because they are generally not subject to master netting or similar agreements.

Master Netting and Similar Agre

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 $ 302,267 $ — $ 302,267 $ (23,207 ) $ (277,660 ) $ 1,400 December 31, 2019 586,629 — 586,629 (21,004 ) (562,702 ) 2,923 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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 $ 1,482,585 $ — $ 1,482,585 $ (23,207 ) $ (1,459,297 ) $ 81 December 31, 2019 716,925 — 716,925 (21,004 ) (695,879 ) 42 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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 539,974 $ — $ 539,974 Government agency issued MBS 512,170 14,442 526,612 Government agency issued CMO — 6,052 6,052 Other U.S. government agencies 139,756 — 139,756 Government guaranteed loans (SBA and USDA) 270,191 — 270,191 Total Securities sold under agreements to repurchase $ 1,462,091 $ 20,494 $ 1,482,585 December 31, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 41,364 $ — $ 41,364 Government agency issued MBS 341,173 4,545 345,718 Other U.S. government agencies 54,924 — 54,924 Government guaranteed loans (SBA and USDA) 274,919 — 274,919 Total Securities sold under agreements to repurchase $ 712,380 $ 4,545 $ 716,925

Fair Value of Assets & Liabilit

Fair Value of Assets & Liabilities	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 : June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 119,121 $ — $ 119,121 Government agency issued MBS — 431,765 — 431,765 Government agency issued CMO — 226,732 — 226,732 Other U.S. government agencies — 91,203 — 91,203 States and municipalities — 17,467 — 17,467 Corporate and other debt — 229,556 — 229,556 Equity, mutual funds, and other — (22 ) — (22 ) Total trading securities—fixed income — 1,115,822 — 1,115,822 Trading securities—mortgage banking — — 628 628 Loans held-for-sale (elected fair value) — — 13,263 13,263 Securities available-for-sale: U.S. treasuries — 999,975 — 999,975 Government agency issued MBS — 2,487,382 — 2,487,382 Government agency issued CMO — 1,415,265 — 1,415,265 Other U.S. government agencies — 417,292 — 417,292 States and municipalities — 90,383 — 90,383 Corporate and other debt — 40,413 — 40,413 Interest-Only Strip (elected fair value) — — 25,446 25,446 Total securities available-for-sale — 5,450,710 25,446 5,476,156 Other assets: Deferred compensation mutual funds 48,572 — — 48,572 Equity, mutual funds, and other 22,692 — — 22,692 Derivatives, forwards and futures 35,408 — — 35,408 Derivatives, interest rate contracts — 563,866 — 563,866 Derivatives, other — 260 170 430 Total other assets 106,672 564,126 170 670,968 Total assets $ 106,672 $ 7,130,658 $ 39,507 $ 7,276,837 Trading liabilities—fixed income: U.S. treasuries $ — $ 195,753 $ — $ 195,753 Other U.S.government agencies — 578 — 578 States and municipalities — 756 — 756 Corporate and other debt — 35,655 — 35,655 Total trading liabilities—fixed income — 232,742 — 232,742 Other liabilities: Derivatives, forwards and futures 30,483 — — 30,483 Derivatives, interest rate contracts — 44,722 — 44,722 Derivatives, other — 369 18,815 19,184 Total other liabilities 30,483 45,091 18,815 94,389 Total liabilities $ 30,483 $ 277,833 $ 18,815 $ 327,131 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2019 : December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 134,844 $ — $ 134,844 Government agency issued MBS — 268,024 — 268,024 Government agency issued CMO — 250,652 — 250,652 Other U.S. government agencies — 124,972 — 124,972 States and municipalities — 120,744 — 120,744 Corporate and other debt — 445,253 — 445,253 Equity, mutual funds, and other — 777 — 777 Total trading securities—fixed income — 1,345,266 — 1,345,266 Trading securities—mortgage banking — — 941 941 Loans held-for-sale (elected fair value) — — 14,033 14,033 Securities available-for-sale: U.S. treasuries — 100 — 100 Government agency issued MBS — 2,348,517 — 2,348,517 Government agency issued CMO — 1,670,492 — 1,670,492 Other U.S. government agencies — 306,092 — 306,092 States and municipalities — 60,526 — 60,526 Corporate and other debt — 40,540 — 40,540 Interest-Only Strip (elected fair value) — — 19,136 19,136 Total securities available-for-sale — 4,426,267 19,136 4,445,403 Other assets: Deferred compensation mutual funds 46,815 — — 46,815 Equity, mutual funds, and other 22,643 — — 22,643 Derivatives, forwards and futures 20,640 — — 20,640 Derivatives, interest rate contracts — 162,413 — 162,413 Derivatives, other — 62 — 62 Total other assets 90,098 162,475 — 252,573 Total assets $ 90,098 $ 5,934,008 $ 34,110 $ 6,058,216 Trading liabilities—fixed income: U.S. treasuries $ — $ 406,380 $ — $ 406,380 Other U.S. government agencies — 88 — 88 Government agency issued MBS — 33 — 33 Corporate and other debt — 99,080 — 99,080 Total trading liabilities—fixed income — 505,581 — 505,581 Other liabilities: Derivatives, forwards and futures 19,807 — — 19,807 Derivatives, interest rate contracts — 24,412 — 24,412 Derivatives, other — 466 22,795 23,261 Total other liabilities 19,807 24,878 22,795 67,480 Total liabilities $ 19,807 $ 530,459 $ 22,795 $ 573,061 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 June 30, 2020 and 2019 , on a recurring basis are summarized as follows: Three Months Ended June 30, 2020 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on April 1, 2020 $ 785 $ 23,104 $ 13,584 $ (20,890 ) Total net gains/(losses) included in: Net income (157 ) (1,233 ) 422 (201 ) Purchases — — — — Sales — — — — Settlements — — (743 ) 2,446 Net transfers into/(out of) Level 3 — 3,575 (b) — — Balance on June 30, 2020 $ 628 $ 25,446 $ 13,263 $ (18,645 ) Net unrealized gains/(losses) included in net income $ — (a) $ (959 ) (c) $ 422 (a) $ (201 ) (d) Three Months Ended June 30, 2019 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative Balance on April 1, 2019 $ 1,397 $ 13,195 $ 15,751 $ (28,970 ) Total net gains/(losses) included in: Net income 8 (141 ) 321 (19 ) Purchases — — 10 — Sales — (14,199 ) — — Settlements (150 ) — (990 ) 2,444 Net transfers into/(out of) Level 3 — 18,937 (b) — — Balance on June 30, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Net unrealized gains/(losses) included in net income $ (36 ) (a) $ (543 ) (c) $ 321 (a) $ (19 ) (d) (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) Included in Other expense. The changes in Level 3 assets and liabilities measured at fair value for the six months ended June 30, 2020 and 2019 , on a recurring basis are summarized as follows: Six Months Ended June 30, 2020 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on January 1, 2020 $ 941 $ 19,136 $ 14,033 $ (22,795 ) Total net gains/(losses) included in: Net income (313 ) (2,528 ) 751 (712 ) Purchases — 5,481 — — Sales — (8,703 ) — — Settlements — — (1,521 ) 4,862 Net transfers into/(out of) Level 3 — 12,060 (b) — — Balance on June 30, 2020 $ 628 $ 25,446 $ 13,263 $ (18,645 ) Net unrealized gains/(losses) included in net income $ — (a) $ (1,813 ) (c) $ 751 (a) $ (712 ) (d) Six Months Ended June 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 29 (1,399 ) 816 116 Purchases — 86 10 — Sales — (27,211 ) — — Settlements (298 ) — (2,007 ) 4,879 Net transfers into/(out of) Level 3 — 36,414 (b) — — Balance on June 30, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Net unrealized gains/(losses) included in net income $ (66 ) (a) $ (1,435 ) (c) $ 816 (a) $ 116 (d) (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) Included in Other expense. There were no net unrealized gains/(losses) for Level 3 assets and liabilities included in other comprehensive income as of June 30, 2020 and 2019 . 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 June 30, 2020 , and December 31, 2019 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 643,445 $ 774 $ 644,219 Loans held-for-sale—first mortgages — — 504 504 Loans, net of unearned income (a) — — 66,062 66,062 OREO (b) — — 13,177 13,177 Other assets (c) — — 9,835 9,835 Carrying value at December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 492,595 $ 929 $ 493,524 Loans held-for-sale—first mortgages — — 516 516 Loans, net of unearned income (a) — — 42,208 42,208 OREO (b) — — 15,660 15,660 Other assets (c) — — 10,608 10,608 (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 and related 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. 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 six months ended June 30, 2020 and 2019 : Net gains/(losses) Net gains/(losses) (Dollars in thousands) 2020 2019 2020 2019 Loans held-for-sale—SBAs and USDA $ (1,247 ) $ (1,074 ) $ (2,208 ) $ (1,293 ) Loans held-for-sale—first mortgages (4 ) 10 1 25 Loans, net of unearned income (a) (1,274 ) (4,639 ) (6,113 ) (4,436 ) OREO (b) (142 ) (9 ) (169 ) 26 Other assets (c) (426 ) (267 ) (772 ) (942 ) $ (3,093 ) $ (5,979 ) $ (9,261 ) $ (6,620 ) (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 2019, FHN recognized $4.6 million of impairments and $.7 million of impairment reversals, respectively, related to dispositions of acquired properties and $1.5 million of impairments for lease assets related to continuing acquisition integration efforts associated with reduction of leased office space and branch optimization. Related to its restructuring, repositioning, and efficiency efforts, FHN recognized $14.0 million of impairments and $1.4 million of impairment reversals, respectively, for tangible long-lived assets and lease assets. Related to the Company's rebranding initiative, 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. These amounts were recognized in the Corporate segment. 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. 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 June 30, 2020 and December 31, 2019 : (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 $ 25,446 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 14% - 15% 15% Loans held-for-sale - residential real estate 13,767 Discounted cash flow Prepayment speeds - First mortgage 5% - 15% 5.8% Foreclosure losses 50% - 65% 63% Loss severity trends - First mortgage 4% - 21% of UPB 13.6% Loans held-for-sale- unguaranteed interest in SBA loans 774 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 8% 8% Derivative liabilities, other 18,645 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 9 - 33 months 24 months Loans, net of unearned 66,062 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) 13,177 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 9,835 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 $ 19,136 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 16% - 17% 16% Loans held-for-sale - residential real estate 14,549 Discounted cash flow Prepayment speeds - First mortgage 3% - 14% 4.1% Prepayment speeds - HELOC 0% - 12% 7.6% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 3% - 24% of UPB 14.3% Loss severity trends - HELOC 0% - 72% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 929 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 22,795 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 15 - 39 months 29 months Loans, net of unearned 42,208 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) 15,660 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 10,608 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 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. June 30, 2020 (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 $ 13,263 $ 17,857 $ (4,594 ) Nonaccrual loans 2,740 5,774 (3,034 ) Loans 90 days or more past due and still accruing 186 322 (136 ) December 31, 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 $ 14,033 $ 19,278 $ (5,245 ) Nonaccrual loans 3,532 6,646 (3,114 ) Loans 90 days or more past due and still accruing 163 268 (105 ) 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 Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 422 $ 321 $ 751 $ 816 For the three and six months ended June 30, 2020 and 2019 , the amount for residential real estate loans held-for-sale included an insignificant amount of gain in pretax earnings that is 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 values on similar assets when available, including committed bids for specific loans or loan portfolios. Uncommitted bids may be adjusted based on other available market information. For all other loans FHN determines the fair value of residential real estate loans held-for-sale using a discounted cash flow model which incorporates both observable and unobservable inputs. Inputs include current mortgage rates for similar products, estimated prepayment rates, foreclosure losses, and various loan performance measures (delinquency, LTV, credit score). Adjustments for delinquency and other differences in loan characteristics are typically reflected in the model’s discount rates. Loss severity trends and the value of underlying collateral are also considered in assessing the appropriate fair value for severely delinquent loans and loans in foreclosure. The valuation of HELOCs also incorporates estimated cancellation rates for loans expected to become delinquent. Non-mortgage consumer loans held-for-sale are valued using committed bids for specific loans or loan portfolios or current market pricing for similar assets with adjustments for differences in credit standing (delinquency, historical default rates for similar loans), yield, collateral values and prepayment rates. If pricing for similar assets is not available, a discounted cash flow methodology is utilized, which incorporates all of these factors into an estimate of investor required yield for the discount rate. The Company utilizes quoted market prices of similar instruments or broker and dealer quotations to value the SBA and USDA guaranteed loans. The Company values SBA-unguaranteed interests in loans held-for-sale based on individual loan characteristics, such as industry type and pay history which generally follows an income approach. Furthermore, these valuations are adjusted for changes in prepayment estimates and are reduced due to restrictions on trading. The fair value of other non-residential real estate loans held-for-sale is approximated by their carrying values based on current transaction values. Collateral-Dependent loans. For loans measured using the estimated fair value of collateral less costs to sell, fair value is estimated using appraisals of the col

Restructuring, Repositioning, a

Restructuring, Repositioning, and Efficiency	6 Months Ended
	Jun. 30, 2020
Restructuring and Related Activities [Abstract]
Restructuring, Repositioning, and Efficiency	Restructuring, Repositioning, and Efficiency Beginning in 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 not significant in the first half 2020 and were $30.8 million in the first half 2019 and are included in the Corporate segment. Significant expenses resulted from the following actions: • Severance and other employee costs primarily related to efficiency initiatives within corporate and bank services functions which are classified as Employee compensation, incentives and benefits within noninterest expense. • Expense largely related to the identification of efficiency opportunities within the organization which is reflected in Professional fees. • Expense 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 six months ended June 30, 2020 and 2019 is presented in the table below: Three Months Ended Six Months Ended Dollars in thousands 2020 2019 2020 2019 Employee compensation, incentives and benefits $ 32 $ 2,557 $ 89 $ 9,062 Professional fees 7 4,242 14 8,537 Occupancy — 72 2 889 Other 1 11,797 (102 ) 12,332 Total restructuring, repositioning, and efficiency charges $ 40 $ 18,668 $ 3 $ 30,820

Financial Information (Policies

Financial Information (Policies)	6 Months Ended
	Jun. 30, 2020
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 2020 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 Item 8 to FHN’s Annual Report on Form 10-K for the year ended December 31, 2019 .
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, 2019, for a discussion of FHN's key revenues. Contract Balances. As of June 30, 2020 , accounts receivable related to products and services on non-interest income were $8.9 million . For the three months ended June 30, 2020 , 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 June 30, 2020 . Credit risk is assessed on these accounts receivable each reporting period and the amount of estimated uncollectible receivables is not material. Transaction Price Allocated to Remaining Performance Obligations. For the three and six months ended June 30, 2020 , 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 12– Business Segment Information for a reconciliation of disaggregated revenue by major product line and reportable segment.
Debt Investment Securities	Debt Investment Securities. Debt securities that may be sold prior to maturity are classified as available-for-sale (“AFS”) and are carried at fair value. The unrealized gains and losses on debt securities AFS, including securities for which no credit impairment exists, are excluded from earnings and are reported, net of tax, as a component of other comprehensive income within shareholders’ equity and the Consolidated Condensed Statements of Comprehensive Income. Debt securities which management has the intent and ability to hold to maturity (“HTM”) are reported at amortized cost. Interest-only strips that are classified as securities AFS are valued at elected fair value. See Note 16 - Fair Value of Assets and Liabilities for additional information. Realized gains and losses (i.e., from sales) for debt investment securities are determined by the specific identification method and reported in noninterest income. In periods subsequent to 2019, the evaluation of credit risk for HTM debt securities mirrors the process described below for loans held-for-investment. AFS debt securities are reviewed for potential credit impairment at the individual security level. The evaluation of credit risk includes consideration of third-party and government guarantees (both explicit and implicit), senior or subordinated status, credit ratings of the issuer, the effects of interest rate changes since purchase and observable market information such as issuer-specific credit spreads. Credit losses for AFS debt securities are generally recognized through establishment of an allowance for credit losses that cannot exceed the amount by which amortized cost exceeds fair value. Charge offs are recorded as reductions of the security’s amortized cost and the credit allowance. Subsequent improvements in estimated credit losses result in reduction of the credit allowance, but not beyond zero. However, if FHN has the intent to sell or if it is more-likely-than-not that it will be compelled to sell a security with an unrecognized loss, the difference between the security's carrying value and fair value is recognized through earnings and a new amortized cost basis is established for the security (i.e., no allowance for credit losses is recognized). FHN has elected to exclude accrued interest receivable (“AIR”) from the fair value and amortized cost basis on AFS debt securities when assessing whether these securities have experienced credit impairment. Additionally, FHN has elected to not measure an allowance for credit losses on AIR for AFS debt securities based on its policy to write off uncollectible interest in a timely manner, which generally occurs when delinquency reaches no more than 90 days for all security types. Any such write offs are recognized as a reduction of interest income. AIR for AFS debt securities is included within Other assets in the Consolidated Condensed Statement of Condition. In periods prior to 2020, both AFS and HTM securities were reviewed quarterly for possible other-than-temporary impairment (“OTTI”). The review included an analysis of the facts and circumstances of each individual investment such as the degree of loss, the length of time the fair value had been below cost, the expectation for that security’s performance, the creditworthiness of the issuer and FHN’s intent and ability to hold the security. Declines in value judged to be other-than-temporary (“OTTI”) based on FHN’s analysis of the facts and circumstances related to an individual investment, including securities that FHN had the intent to sell, were determined by the specific identification method. For HTM debt securities, OTTI recognized was typically credit-related and was reported in noninterest income. For impaired AFS debt securities that FHN did not intend to sell and was not required to sell prior to recovery but for which credit losses existed, the OTTI recognized was allocated between the total impairment related to credit losses which was reported in noninterest income, and the impairment related to all other factors which was excluded from earnings and reported, net of tax, as a component of other comprehensive income within shareholders’ equity and the Consolidated Condensed Statements of Comprehensive Income.
Fed Funds Sold and Purchased	Fed Funds Sold and Purchased. Fed funds sold and purchased represent unsecured overnight funding arrangements between participants in the Federal Reserve system primarily to assist banks in meeting their regulatory cash reserve requirements. Fed Funds sold are evaluated for credit risk each reporting period. Due to the short duration of each transaction and the history of no credit losses, no credit loss has been recognized.
Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase	Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase. FHN purchases short-term securities under agreements to resell which are accounted for as collateralized financings except where FHN does not have an agreement to sell the same or substantially the same securities before maturity at a fixed or determinable price. All of FHN’s securities purchased under agreements to resell are recognized as collateralized financings. Securities delivered under these transactions are delivered to either the dealer custody account at the FRB or to the applicable counterparty. Securities sold under agreements to repurchase are offered to cash management customers as an automated, collateralized investment account. Securities sold under agreements to repurchase are also used by the consumer/commercial bank to obtain favorable borrowing rates on its purchased funds. All of FHN's securities sold under agreements to repurchase are secured borrowings. Collateral is valued daily and FHN may require counterparties to deposit additional securities or cash as collateral, or FHN may return cash or securities previously pledged by counterparties, or FHN may be required to post additional securities or cash as collateral, based on the contractual requirements for these transactions. FHN’s fixed income business utilizes securities borrowing arrangements as part of its trading operations. Securities borrowing transactions generally require FHN to deposit cash with the securities lender. The amount of cash advanced is recorded within Securities purchased under agreements to resell in the Consolidated Condensed Statements of Condition. These transactions are not considered purchases and the securities borrowed are not recognized by FHN. FHN does not conduct securities lending transactions. Securities purchased under agreements to resell and securities borrowing arrangements are evaluated for credit risk each reporting period. As presented in Note 15 - Master Netting and Similar Agreements - Repurchase, Reverse Repurchase, and Securities Borrowing Transactions, these agreements are collateralized by the related securities and collateral maintenance provisions with counterparties, including replenishment and adjustment on a transaction specific basis. This collateral includes both the securities collateral for each transaction as well as offsetting securities sold under agreements to repurchase with the same counterparty. Given the history of no credit losses and collateralized nature of these transactions, no credit loss has been recognized.
Loans, Purchased Credit-Deteriorated Loans, Purchased Credit-Impaired Loans, and Allowance for Loan Losses	Subsequent to 2019 The ALLL is maintained at a level that management determines is sufficient to absorb current expected credit losses (“CECL”) in the loan portfolio. Management uses analytical models to estimate expected credit losses in the loan portfolio as of the balance sheet date. The models are carefully reviewed to identify trends that may not be captured in the modeled loss estimates. Management uses qualitative adjustments for those items not reflected in the modeled loss information such as recent changes from the macroeconomic forecasts utilized in model calculations, results of additional stressed modeling scenarios, observed and/or expected changes affecting borrowers in specific industries or geographic areas, exposure to large lending relationships and expected recoveries of prior charge offs. The ALLL is increased by the provision for loan losses and is decreased by loan charge-offs. The ALLL is determined in accordance with ASC 326-20 "Financial Instruments - Credit Losses.” Credit loss estimation is based on the amortized cost of Loans, net, which includes the following: 1. Unpaid principal balance for originated assets or acquisition price for purchased assets 2. Accrued interest (see elections discussed previously) 3. Accretion or amortization of premium, discount, and net deferred fees or costs 4. Collection of cash 5. Charge-offs 6. Foreign exchange adjustments (none for FHN) 7. Fair value hedge accounting adjustments (none for FHN) Premiums, discounts and net deferred origination costs/fees affect the calculated amount of expected credit losses but they are not considered when determining the amount of expected credit losses that are recorded. Under CECL, loans must be pooled when they share similar risk characteristics with other loans. Loans that do not share similar risk characteristics are evaluated individually. Expected credit loss is estimated for the remaining life of loan(s), which is limited to the remaining contractual term(s), adjusted for prepayment estimates, which are included as separate inputs into modeled loss estimates. Renewals and extensions are not anticipated unless they are included in existing loan documentation and are not unconditionally cancellable by the lender. However, losses are estimated over the estimated remaining life of reasonably expected TDRs which can extend beyond the current remaining contractual term. Estimates of expected credit losses incorporate consideration of available information that is relevant to assessing the collectability of future cash flows. This includes internal and external information relating to past events, current conditions and reasonable and supportable forecasts of future conditions. FHN utilizes internal historical loss information as the initial point for estimating expected credit losses. Given the duration of historical information available, FHN considers its internal loss history to fully incorporate the effects of prior credit cycles. The historical loss information may be adjusted in situations where current loan characteristics (e.g., underwriting criteria) differ from those in existence at the time the historical losses occurred. Historical loss information is also adjusted for differences in economic conditions, macroeconomic forecasts and other factors management considers relevant over a period extending beyond the measurement date which is considered reasonable and supportable. This reasonable and supportable period is followed by a reversion period after which loss estimates are based on long-term historical loss averages. FHN generally measures expected credit losses using undiscounted cash flow methodologies. Credit enhancements (e.g., guarantors) are considered in the estimation of uncollectible cash flows. Estimation of expected credit losses for loan agreements involving collateral maintenance provisions include consideration of the value of the collateral and replenishment requirements, with the maximum loss limited to the difference between the amortized cost of the loan and the fair value of the collateral. Expected credit losses for loans for which foreclosure is probable are measured at the fair value of collateral, less estimated costs to sell when disposition through sale is anticipated. Additionally, certain loans are valued at the fair value of collateral when repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty. Expected credit losses for TDRs are measured in accordance with ASC 310-40, which generally requires a discounted cash flow methodology, whereby the loans are measured based on the present value of expected future payments discounted at the loan’s original effective interest rate. Expected recoveries of previously charged-off amounts are also included as a qualitative adjustment in the estimation of expected credit losses, which reduces the amount of the allowance recognized. Estimates of recoveries on previously charged-off assets included in the valuation account do not exceed the aggregate of amounts previously written off and expected to be written off. Since CECL requires estimation of credit for the entire expected life of loans, loss estimates are highly sensitive to changes in macroeconomic forecasts, especially when those forecasts change dramatically in short time periods. Additionally, under CECL credit loss estimates are more likely to increase rapidly in periods of loan growth. Expected credit losses for unfunded commitments are estimated for periods where the commitment is not unconditionally cancellable by FHN. The measurement of expected credit losses for unfunded commitments mirrors that of loans with the additional estimate of future draw rates (timing and amount). Prior to 2020 The ALLL was maintained at a level that management determined was sufficient to absorb estimated probable incurred losses in the loan portfolio. The ALLL was increased by the provision for loan losses and loan recoveries and was decreased by loan charge-offs. The ALLL was determined in accordance with ASC 450-20-50 "Contingencies - Accruals for Loss Contingencies" and was composed of reserves for commercial loans evaluated based on pools of credit graded loans and reserves for pools of smaller-balance homogeneous consumer and commercial loans. The reserve factors applied to these pools were an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics. Additionally, the ALLL included specific reserves established in accordance with ASC 310-10-35 for loans determined by management to be individually impaired as well as reserves associated with PCI loans. Management used analytical models to estimate probable incurred losses in the loan portfolio as of the balance sheet date. The models, which were primarily driven by historical losses, were carefully reviewed to identify trends that may not have been captured in the historical loss factors used in the models. Management used qualitative adjustments for those items not yet captured in the models like then-current events, recent trends in the portfolio, current underwriting guidelines, and local and macroeconomic trends, among other things. Key components of the estimation process were as follows: (1) commercial loans determined by management to be individually impaired loans were evaluated individually and specific reserves were determined based on the difference between the outstanding loan amount and the estimated net realizable value of the collateral (if collateral dependent), the present value of expected future cash flows or by observable market prices; (2) individual commercial loans not considered to be individually impaired were segmented based on similar credit risk characteristics and evaluated on a pool basis; (3) reserve rates for the commercial segment were calculated based on historical net charge-offs and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); (4) management’s estimate of probable incurred losses reflected the reserve rates applied against the balance of loans in the commercial segment of the loan portfolio; (5) consumer loans were generally segmented based on loan type; (6) reserve amounts for each consumer portfolio segment were calculated using analytical models based on delinquency trends and net loss experience and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); and (7) the reserve amount for each consumer portfolio segment reflected management’s estimate of probable incurred losses in the consumer segment of the loan portfolio. Impairment related to individually impaired loans was measured in accordance with ASC 310-10. All commercial portfolio segments, commercial TDRs and other individually impaired commercial loans were measured based on the present value of expected future payments discounted at the loan’s effective interest rate (“the DCF method”), observable market prices, or for loans that are solely dependent on the collateral for repayment, the net realizable value (collateral value less estimated costs to sell). Impaired loans also included consumer TDRs. Loans. Generally, loans are stated at principal amounts outstanding, net of unearned income. Interest on loans is recognized on an accrual basis at the applicable interest rate on the principal amount outstanding. Loan origination fees and direct costs as well as premiums and discounts are amortized as level yield adjustments over the respective loan terms. Unamortized net fees or costs, premiums and discounts are recognized in interest income upon early repayment of the loans. Cash collections from loans that were fully charged off prior to acquisition are recognized in noninterest income. Loan commitment fees are generally deferred and amortized on a straight-line basis over the commitment period. FHN has elected to exclude accrued interest receivable (“AIR”) from the amortized cost basis on for its held-for-investment loan portfolio. FHN has also elected to not measure an allowance for credit losses on AIR for loans held-for-investment based on its policy to write off uncollectible interest in a timely manner, which occurs when a loan is placed on nonaccrual status. Such write offs are recognized as a reduction of interest income. AIR for held-for-investment loans is included within Other assets in the Consolidated Condensed Statements of Condition. FHN has continued to accrue interest on loans for which payment deferrals have been extended to borrowers affected by the COVID-19 pandemic ("COVID-19 Deferrals"). Deferrals are made for durations up to six months, which is beyond FHN's normal write-off practices for accrued interest. Therefore, these interest deferrals do not qualify for FHN's election to not recognize a credit loss allowance for accrued interest. Accordingly, FHN has estimated credit losses for COVID-19 interest deferrals which is included within AIR in Other assets in the Consolidated Condensed Statements of Condition. Purchased Credit-Deteriorated Loans. Subsequent to 2019, FHN evaluates all acquired loans to determine if they have experienced a more-than-insignificant deterioration in credit quality since origination (“PCD loans”). PCD loans can be identified on either an 1) individual or 2) pooled basis when the loans share similar risk characteristics. FHN evaluates various absolute factors to assist in the identification of PCD loans, including criteria such as, existing PCD status, risk rating of special mention or lower, nonaccrual or impaired status, identification of prior TDRs, and delinquency status. FHN also utilizes relative factors to identify PCD loans such as commercial loan grade migration, expansion of borrower credit spreads, declines in external risk ratings and changes in consumer loan characteristics (e.g., FICO decline or LTV increase). In addition, factors reflective of broad economic considerations are also considered in identifying PCD loans. These include industry, collateral type, and geographic location for the borrower’s operations. Internal factors for origination of new loans that are similar to the acquired loans are also evaluated to assess loans for PCD status, including increases in required yields, necessity of borrowers’ providing additional collateral and/or guarantees and changes in acceptable loan duration. Other indicators may also be used to evaluate loans for PCD status depending on borrower-specific communications and actions, such public statements, initiation of loan modification discussions and obtaining emergency funding from alternate sources. Upon acquisition, the expected credit losses are allocated to the purchase price of individual PCD loans to determine each individual assets amortized cost basis, typically resulting in a reduction of the discount that is accreted prospectively to interest income. At the acquisition date and prospectively, only the unpaid principal balance is incorporated within the estimation of expected credit losses for PCD loans. Otherwise, the process for estimate of expected credit losses is consistent with that discussed below. As discussed below FHN applies undiscounted cash flow methodologies for the estimation of expected credit losses, which results in the calculated amount of credit losses at acquisition that is added to the amortized cost basis of the related PCD loans to exceed the discounted value of estimated credit losses included in the loan valuation. Purchased Credit-Impaired Loans. Prior to 2020, ASC 310-30 “Accounting for Certain Loans or Debt Securities Acquired in a Transfer,” established guidance for acquired loans that exhibited deterioration of credit quality between origination and the time of acquisition and for which the timely collection of the interest and principal was not reasonably assured (“PCI loans”). PCI loans were initially recorded at fair value which was estimated by discounting expected cash flows at acquisition date. The expected cash flows included all contractually expected amounts (including interest) and incorporated an estimate for future expected credit losses, pre-payment assumptions, and yield requirement for a market participant, among other things. To the extent possible, certain PCI loans were aggregated into pools with composite interest rate and cash flows expected to be collected for the pool. Aggregation into loan pools was based upon common risk characteristics that include similar credit risk or risk ratings, and one or more predominant risk characteristics. Each PCI pool was accounted for as a single unit. Accretable yield was initially established at acquisition and is the excess of cash flows expected at acquisition over the initial investment in the loan and was recognized in interest income over the remaining life of the loan, or pool of loans. Nonaccretable difference was initially established at acquisition and was the difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition. FHN estimated expected cash flows for PCI loans on a quarterly basis. Increases in expected cash flows from the last measurement resulted in reversal of any nonaccretable difference (or allowance for loan losses to the extent any has previously been recorded) with a prospective positive impact on interest income. Decreases to the expected cash flows resulted in an increase in the allowance for loan losses through provision expense. FHN did not report PCI loans as nonperforming loans due to the accretion of interest income. Additionally, PCI loans that have been pooled and subsequently modified were not reported as troubled debt restructurings since the pool was the unit of measurement. Subsequent to 2019, PCI loans have transitioned to purchased-credit-deteriorated status and are accounted for as discussed above.
Allowance for Loan Losses	Allowance for Loan Losses. The nature of the process by which FHN determines the appropriate ALLL requires the exercise of considerable judgment. See Note 5 - Allowance for Loan Losses for a discussion of FHN’s ALLL methodology and a description of the models utilized in the estimation process for the commercial and consumer loan portfolios. The discussion herein reflects periods before and after implementation of a change in credit loss estimation processes that was effective January 1, 2020. Future adjustments to the ALLL may be necessary if economic or other conditions differ substantially from the assumptions used in making the estimates or, if required by regulators, based upon information at the time of their examinations or upon future regulatory guidance. Such adjustments to original estimates, as necessary, are made in the period in which these factors and other relevant considerations indicate that loss levels vary from previous estimates. Subsequent to 2019 The ALLL is maintained at a level that management determines is sufficient to absorb current expected credit losses (“CECL”) in the loan portfolio. Management uses analytical models to estimate expected credit losses in the loan portfolio as of the balance sheet date. The models are carefully reviewed to identify trends that may not be captured in the modeled loss estimates. Management uses qualitative adjustments for those items not reflected in the modeled loss information such as recent changes from the macroeconomic forecasts utilized in model calculations, results of additional stressed modeling scenarios, observed and/or expected changes affecting borrowers in specific industries or geographic areas, exposure to large lending relationships and expected recoveries of prior charge offs. The ALLL is increased by the provision for loan losses and is decreased by loan charge-offs. The ALLL is determined in accordance with ASC 326-20 "Financial Instruments - Credit Losses.” Credit loss estimation is based on the amortized cost of Loans, net, which includes the following: 1. Unpaid principal balance for originated assets or acquisition price for purchased assets 2. Accrued interest (see elections discussed previously) 3. Accretion or amortization of premium, discount, and net deferred fees or costs 4. Collection of cash 5. Charge-offs 6. Foreign exchange adjustments (none for FHN) 7. Fair value hedge accounting adjustments (none for FHN) Premiums, discounts and net deferred origination costs/fees affect the calculated amount of expected credit losses but they are not considered when determining the amount of expected credit losses that are recorded. Under CECL, loans must be pooled when they share similar risk characteristics with other loans. Loans that do not share similar risk characteristics are evaluated individually. Expected credit loss is estimated for the remaining life of loan(s), which is limited to the remaining contractual term(s), adjusted for prepayment estimates, which are included as separate inputs into modeled loss estimates. Renewals and extensions are not anticipated unless they are included in existing loan documentation and are not unconditionally cancellable by the lender. However, losses are estimated over the estimated remaining life of reasonably expected TDRs which can extend beyond the current remaining contractual term. Estimates of expected credit losses incorporate consideration of available information that is relevant to assessing the collectability of future cash flows. This includes internal and external information relating to past events, current conditions and reasonable and supportable forecasts of future conditions. FHN utilizes internal historical loss information as the initial point for estimating expected credit losses. Given the duration of historical information available, FHN considers its internal loss history to fully incorporate the effects of prior credit cycles. The historical loss information may be adjusted in situations where current loan characteristics (e.g., underwriting criteria) differ from those in existence at the time the historical losses occurred. Historical loss information is also adjusted for differences in economic conditions, macroeconomic forecasts and other factors management considers relevant over a period extending beyond the measurement date which is considered reasonable and supportable. This reasonable and supportable period is followed by a reversion period after which loss estimates are based on long-term historical loss averages. FHN generally measures expected credit losses using undiscounted cash flow methodologies. Credit enhancements (e.g., guarantors) are considered in the estimation of uncollectible cash flows. Estimation of expected credit losses for loan agreements involving collateral maintenance provisions include consideration of the value of the collateral and replenishment requirements, with the maximum loss limited to the difference between the amortized cost of the loan and the fair value of the collateral. Expected credit losses for loans for which foreclosure is probable are measured at the fair value of collateral, less estimated costs to sell when disposition through sale is anticipated. Additionally, certain loans are valued at the fair value of collateral when repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty. Expected credit losses for TDRs are measured in accordance with ASC 310-40, which generally requires a discounted cash flow methodology, whereby the loans are measured based on the present value of expected future payments discounted at the loan’s original effective interest rate. Expected recoveries of previously charged-off amounts are also included as a qualitative adjustment in the estimation of expected credit losses, which reduces the amount of the allowance recognized. Estimates of recoveries on previously charged-off assets included in the valuation account do not exceed the aggregate of amounts previously written off and expected to be written off. Since CECL requires estimation of credit for the entire expected life of loans, loss estimates are highly sensitive to changes in macroeconomic forecasts, especially when those forecasts change dramatically in short time periods. Additionally, under CECL credit loss estimates are more likely to increase rapidly in periods of loan growth. Expected credit losses for unfunded commitments are estimated for periods where the commitment is not unconditionally cancellable by FHN. The measurement of expected credit losses for unfunded commitments mirrors that of loans with the additional estimate of future draw rates (timing and amount). Prior to 2020 The ALLL was maintained at a level that management determined was sufficient to absorb estimated probable incurred losses in the loan portfolio. The ALLL was increased by the provision for loan losses and loan recoveries and was decreased by loan charge-offs. The ALLL was determined in accordance with ASC 450-20-50 "Contingencies - Accruals for Loss Contingencies" and was composed of reserves for commercial loans evaluated based on pools of credit graded loans and reserves for pools of smaller-balance homogeneous consumer and commercial loans. The reserve factors applied to these pools were an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics. Additionally, the ALLL included specific reserves established in accordance with ASC 310-10-35 for loans determined by management to be individually impaired as well as reserves associated with PCI loans. Management used analytical models to estimate probable incurred losses in the loan portfolio as of the balance sheet date. The models, which were primarily driven by historical losses, were carefully reviewed to identify trends that may not have been captured in the historical loss factors used in the models. Management used qualitative adjustments for those items not yet captured in the models like then-current events, recent trends in the portfolio, current underwriting guidelines, and local and macroeconomic trends, among other things. Key components of the estimation process were as follows: (1) commercial loans determined by management to be individually impaired loans were evaluated individually and specific reserves were determined based on the difference between the outstanding loan amount and the estimated net realizable value of the collateral (if collateral dependent), the present value of expected future cash flows or by observable market prices; (2) individual commercial loans not considered to be individually impaired were segmented based on similar credit risk characteristics and evaluated on a pool basis; (3) reserve rates for the commercial segment were calculated based on historical net charge-offs and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); (4) management’s estimate of probable incurred losses reflected the reserve rates applied against the balance of loans in the commercial segment of the loan portfolio; (5) consumer loans were generally segmented based on loan type; (6) reserve amounts for each consumer portfolio segment were calculated using analytical models based on delinquency trends and net loss experience and were subject to adjustment by management to reflect current events, trends, and conditions (including economic considerations and trends); and (7) the reserve amount for each consumer portfolio segment reflected management’s estimate of probable incurred losses in the consumer segment of the loan portfolio. Impairment related to individually impaired loans was measured in accordance with ASC 310-10. All commercial portfolio segments, commercial TDRs and other individually impaired commercial loans were measured based on the present value of expected future payments discounted at the loan’s effective interest rate (“the DCF method”), observable market prices, or for loans that are solely dependent on the collateral for repayment, the net realizable value (collateral value less estimated costs to sell). Impaired loans also included consumer TDRs.
Summary of Accounting Changes and Accounting Changes Issued But Not Currently Effective	Summary of Accounting Changes. 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., HTM loans and debt securities) and 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 prior GAAP as the “incurred loss” methodology for recognizing credit losses delayed recognition until it was probable a loss had 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 are 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 are 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 is 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. Previously, credit losses for purchased credit-impaired assets were included in the initial basis of the assets with subsequent declines in credit resulting in expense while subsequent improvements in credit were reflected as an increase in the future yield from the assets. For non-PCD assets, expected credit losses are recognized through earnings upon acquisition and the entire premium or discount accreted to interest income over the remaining life of the loan. Credit allowances for acquired non-PCD assets are established through immediate recognition of credit loss expense (similar to originated loans) and do not consider purchase discounts related to estimated credit losses. The provisions of ASU 2016-13 were 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 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 are recorded in earnings when received. A prospective transition approach was used for existing PCD assets where, upon adoption, the amortized cost basis was increased to offset the initial recognition of the allowance for credit losses. Thus, an entity was not required to reassess its purchased financial assets that existed 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 accretes 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’s most significant implementation activities included review of loan portfolio segments and classes, identification and evaluation of collateral dependent loans and loans secured by collateral replenishment arrangements, selection of measurement methodologies and related model development, data accumulation and verification, development of loan life estimates, identification of reasonable and supportable forecast periods, selection of time lines and methods for reversion to unadjusted historical information, multiple preliminary analysis including parallel runs against existing loan loss estimation processes, and design and evaluation of internal controls over the new estimation processes. FHN utilizes undiscounted cash flow methods for loans except for troubled debt restructurings, which require use of discounted cash flow methodologies. A significant portion of the adoption impact for ASU 2016-13 relates to increased reserves within the consumer portfolios, given the longer contractual maturities associated with many of these products as well as increased reserves for acquired loans that previously considered purchase discounts. Based on its implementation efforts, FHN recorded the following adoption adjustments effective January 1, 2020. (Dollars in thousands) January 1, 2020 Loans, net of unearned income (a) $ 2,980 Allowance for loan losses (106,394 ) Other assets (deferred taxes) 31,330 Total assets $ (72,084 ) Other liabilities (unfunded commitments) $ 23,973 Undivided profits (96,057 ) Total liabilities and equity $ (72,084 ) (a) The effect on loans represents the increase in amortized cost for recognition of the allowance for credit losses on PCD loans. FHN also assessed several asset classes other than loans that are within the scope of CECL and determined that the adoption effects for the change in measurement of credit risk were 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 15 - Master Netting and Similar Agreements-Repurchase, Reverse Repurchase, and Securities Borrowing Transactions. Additionally, FHN also evaluated the composition of its AFS securities and determined that the changes in ASU 2016-13 did not have an effect on the current portfolio. 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 provides an election to either 1) not measure or 2) 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 incorporated these changes and revisions within its implementation efforts. Based on its previous existing practices for the timely write off uncollectible AIR, FHN elected 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 HTM debt securities. The effective date and transition requirements for ASU 2019-05 are consistent with the requirements for ASU 2016-13. FHN did not elect to apply the fair value option to any asset classes that are in scope for CECL. In November 2019, the FASB issued ASU 2019-11, “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. ASU 2019-11 also clarifies that recoveries or expected recoveries of the unamortized noncredit discount or premium should not be included in the allowance for credit losses. ASU 2019-11 provides specific transition relief for existing 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, ASU 2019-11 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 ASU 2019-11 are consistent with the requirements for ASU 2016-13 and FHN incorporated these changes and revisions within its implementation efforts and the effects are 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. On March 22, 2020, The Board of Governors of the Federal Reserve System, the Federal Deposit Insurance Corporation, the National Credit Union Administration, the Office of the Comptroller of the Currency, and the Consumer Financial Protection Bureau issued guidance (the “Interagency Guidance”) that interprets, but does not suspend, ASC 310-40 related to the identification of troubled debt restructurings (“TDRs”). Also on that day, the FASB issued a statement indicating that the Interagency Guidance had been developed in consultation with the staff of the FASB who concurred in the approach. The Interagency Guidance indicates that a lender can conclude that a borrower is not experiencing financial difficulty if either 1) short-term (e.g., six months) modifications are made in response to the economic effects of the Coronavirus disease 2019 (“COVID-19”) pandemic, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant related to loans in which the borrower is less than 30 days past due on its contractual payments at the time a modification program is implemented, or 2) the modification or deferral program is mandated by the federal government or a state government. Accordingly, any loan modification made in response to COVID-19 pandemic that meets either of these practical expedients would not be considered a TDR because the borrower is not experiencing financial difficulty. Consistent with this perspective, financial institutions are generally not expected to designate loans with deferrals granted due to COVID-19 as past due or nonaccrual because of a deferral. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was signed into law. The CARES Act provides relief from certain requirements under U.S. GAAP. Section 4013 of the CARES Act provides entities optional temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40 in certain situations. Section 4013 of the CARES Act permits the suspension of ASC 310-40 for loan modifications that are made by financial institutions in response to the COVID-19 pandemic if 1) the borrower was not more than 30 days past due as of December 31, 2019, and 2) the modifications are related to arrangements that defer or delay the payment of principal or interest, or change the interest rate on the loan. The CARES provisions apply to loan modifications relating to COVID-19 that are made between March 1, 2020 and the earlier of December 31, 2020 or 60 days after the national emergency related to COVID-19 ends. On April 3, 2020, the Chief Accountant of the SEC issued a statement indicating that the staff would not object to the conclusion that elective application of the provisions of CARES Act are in accordance with GAAP for the periods that such elections are available. On April 7, 2020, revised Interagency Guidance was issued to reflect the interaction of the CARES Act provisions and the Interagency Guidance, clarifying that the CARES Act guidance can be applied for regulatory purposes. Loan modifications outside the scope of the CARES Act and organizations that elect to not apply the CARES Act guidance should continue to apply ASC 310-40 as interpreted by the Interagency Guidance. FHN has evaluated the provisions of the CARES Act and the Interagency Guidance related to loan modification programs instituted as a result of the COVID-19 pandemic. FHN’s programs involve the deferral of principal and interest payments, fee waivers and extensions for shorter terms (i.e., 6 months or less) or in response to government modification requirements which are consistent with the terms of the Interagency Guidance. Depending upon the duration and severity of the economic effects of the COVID-19 pandemic, additional loan modification programs may be implemented in the future which will be separately evaluated under the CARES Act and the Interagency Guidance. Accounting Changes Issued but Not Currently Effective In March 2020, the FASB issued ASU 2020-04, “Facilitation of the Effects of Reference Rate Reform on Financial Reporting” which provides several optional expedients and exceptions to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The provisions of ASU 2020-04 primarily affect 1) contract modifications (e.g., loans, leases, debt, and derivatives) made in anticipation that a reference rate (e.g., LIBOR) will be discontinued and 2) the application of hedge accounting for existing relationships affected by those modifications. The provisions of ASU 2020-04 are effective upon release and apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by ASU 2020-04 do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. FHN has been identifying contracts affected by reference rate reform and developing modification plans for those contracts. FHN anticipates that it will utilize the optional expedients and exceptions provided by ASU 2020-04 in situations where they mitigate potential accounting outcomes that do not faithfully represent management’s intent or risk management activities which is consistent with the purpose of the standard.

Financial Information (Tables)

Financial Information (Tables)	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Adoption Adjustments	Based on its implementation efforts, FHN recorded the following adoption adjustments effective January 1, 2020. (Dollars in thousands) January 1, 2020 Loans, net of unearned income (a) $ 2,980 Allowance for loan losses (106,394 ) Other assets (deferred taxes) 31,330 Total assets $ (72,084 ) Other liabilities (unfunded commitments) $ 23,973 Undivided profits (96,057 ) Total liabilities and equity $ (72,084 ) (a) The effect on loans represents the increase in amortized cost for recognition of the allowance for credit losses on PCD loans.

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	6 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Merger And Integration Expense	Total other merger and integration expense recognized for the three and six months ended June 30, 2020 and 2019 are presented in the table below: Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Professional fees (a) $ 1,327 $ 4,478 $ 2,126 $ 6,345 Employee compensation, incentives and benefits (b) 87 1,472 483 2,989 Contract employment and outsourcing (c) 420 17 726 17 Occupancy (d) (82 ) 1,505 (107 ) 1,623 Miscellaneous expense (e) 503 79 1,325 1,148 All other expense (f) 2,610 1,096 4,484 2,185 Total $ 4,865 $ 8,647 $ 9,037 $ 14,307 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, internal technology development costs, costs of shareholder matters and asset impairments, as well as other miscellaneous expenses. Total merger expenses for the IBKC merger recognized for the three and six months ended June 30, 2020 are presented in the table below: June 30, 2020 (Dollars in thousands) Three Months Ended Six Months Ended Professional fees (a) $ 3,748 $ 4,410 Employee compensation, incentives and benefits (b) 4,705 5,394 Miscellaneous expense (c) 1,003 1,257 Total IBKC acquisition expense $ 9,456 $ 11,061 (a) Primarily comprised of fees for legal, accounting, and merger consultants. (b) Primarily comprised of fees for severance and retention. (c) Primarily comprised of fees for travel and entertainment, contract employment, and other miscellaneous expenses.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2020
Marketable Securities [Abstract]
Schedule of FHN's Investment Securities	The following tables summarize FHN’s investment securities on June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Securities available-for-sale: U.S. treasuries $ 999,974 $ 5 $ (4 ) $ 999,975 Government agency issued mortgage-backed securities (“MBS”) 2,383,956 103,506 (80 ) 2,487,382 Government agency issued collateralized mortgage obligations (“CMO”) 1,383,703 31,570 (8 ) 1,415,265 Other U.S. government agencies 403,008 14,284 — 417,292 Corporates and other debt 39,950 463 — 40,413 States and municipalities 83,155 7,228 — 90,383 $ 5,293,746 $ 157,056 $ (92 ) 5,450,710 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 25,446 Total securities available-for-sale (b) $ 5,476,156 Securities held-to-maturity: Corporates and other debt $ 10,000 $ — $ (119 ) $ 9,881 Total securities held-to-maturity $ 10,000 $ — $ (119 ) $ 9,881 (a) SBA-interest only strips are recorded at elected fair value. See Note 16 - Fair Value for additional information. (b) Includes $4.7 billion of securities pledged to secure public deposits, securities sold under agreements to repurchase, and for other purposes. December 31, 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 MBS 2,316,381 34,692 (2,556 ) 2,348,517 Government agency issued CMO 1,667,773 9,916 (7,197 ) 1,670,492 Other U.S. government agencies 303,463 3,750 (1,121 ) 306,092 Corporates and other debt 40,054 486 — 40,540 States and municipalities 57,232 3,324 (30 ) 60,526 $ 4,385,003 $ 52,168 $ (10,904 ) 4,426,267 AFS debt securities recorded at fair value through earnings: SBA-interest only strips (a) 19,136 Total securities available-for-sale (b) $ 4,445,403 Securities held-to-maturity: Corporates and other debt $ 10,000 $ 1 $ — $ 10,001 Total securities held-to-maturity $ 10,000 $ 1 $ — $ 10,001 (a) SBA-interest only strips are recorded at elected fair value. See Note 16 - 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 June 30, 2020 are provided below: Held-to-Maturity Available-for-Sale (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year $ — $ — $ 1,106,238 $ 1,108,000 After 1 year; within 5 years — — 137,571 142,491 After 5 years; within 10 years 10,000 9,881 3,573 9,623 After 10 years — — 278,705 313,395 Subtotal 10,000 9,881 1,526,087 1,573,509 Government agency issued MBS and CMO (a) — — 3,767,659 3,902,647 Total $ 10,000 $ 9,881 $ 5,293,746 $ 5,476,156 (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 six months ended June 30 , 2020 and 2019. Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Gross gains on sales of securities $ — $ — $ — $ — Gross (losses) on sales of securities — (267 ) — (267 ) Net gain/(loss) on sales of securities (a) $ — $ (267 ) $ — $ (267 ) (a) Cash proceeds for the three and six months ended June 30, 2020 were not material. Cash pro ceeds for the three and six months ended June 30, 2019 were $171.4 million .
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 June 30, 2020 and December 31, 2019 : As of June 30, 2020 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 $ 499,895 $ (4 ) $ — $ — $ 499,895 $ (4 ) Government agency issued MBS 40,798 (80 ) — — 40,798 (80 ) Government agency issued CMO 15,982 (8 ) — — 15,982 (8 ) Total temporarily impaired securities $ 556,675 $ (92 ) $ — $ — $ 556,675 $ (92 ) As of December 31, 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 174,983 (495 ) 192,755 (2,061 ) 367,738 (2,556 ) Government agency issued CMO 378,815 (1,970 ) 361,124 (5,227 ) 739,939 (7,197 ) Other U.S. government agencies 98,471 (1,121 ) — — 98,471 (1,121 ) States and municipalities 3,551 (30 ) — — 3,551 (30 ) Total temporarily impaired securities $ 655,820 $ (3,616 ) $ 553,979 $ (7,288 ) $ 1,209,799 $ (10,904 )

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Schedule Of Loans By Portfolio Segment	The following table provides the balance (amortized cost basis) of loans, net of unearned income, by portfolio segment as of June 30, 2020 and December 31, 2019 : June 30 December 31 (Dollars in thousands) 2020 2019 Commercial: Commercial, financial, and industrial $ 21,393,893 $ 20,051,091 Commercial real estate 4,813,341 4,337,017 Consumer: Consumer real estate (a) 6,052,393 6,177,139 Credit card & other 449,310 495,864 Loans, net of unearned income $ 32,708,937 $ 31,061,111 Allowance for loan losses 537,881 200,307 Total net loans $ 32,171,056 $ 30,860,804 (a) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio; all prior periods were revised for comparability.
Financing Receivable Credit Quality Indicators	The following tables provide the amortized cost basis of the commercial loan portfolio by year of origination and credit quality indicator as of June 30, 2020 : C&I (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 (a) LMC (b) Revolving Revolving Total PD Grade: 1 (d) $ 2,078,712 $ 99,978 $ 121,167 $ 75,521 $ 106,700 $ 108,574 $ — $ 83,309 $ 56 $ 2,674,017 2 56,810 223,191 100,816 79,318 168,838 90,484 — 95,035 126 814,618 3 42,983 153,671 49,176 89,945 30,381 97,338 741,382 125,470 3,490 1,333,836 4 261,626 335,130 145,047 122,185 129,859 142,129 685,876 259,379 10,653 2,091,884 5 304,710 496,565 220,632 145,650 96,325 163,676 700,944 384,874 12,654 2,526,030 6 360,649 714,704 246,607 195,634 53,597 155,755 1,198,775 667,570 558 3,593,849 7 309,088 723,728 339,953 145,385 100,069 171,016 552,192 598,772 48,291 2,988,494 8 343,391 593,106 194,030 175,289 36,044 96,204 93,900 379,261 7,110 1,918,335 9 171,524 293,768 89,519 66,927 65,539 75,753 25,198 283,883 10,670 1,082,781 10 96,735 171,901 85,644 60,721 50,429 54,729 15,325 227,301 5,082 767,867 11 53,872 82,677 74,977 58,964 70,190 38,059 — 148,656 3,233 530,628 12 51,861 33,083 52,013 47,162 20,214 29,674 6,999 95,943 477 337,426 13 39,047 57,585 10,231 15,916 51,816 45,984 — 114,971 498 336,048 14,15,16 10,898 23,808 39,008 29,306 40,627 13,194 — 98,165 2,548 257,554 Collectively evaluated for impairment 4,181,906 4,002,895 1,768,820 1,307,923 1,020,628 1,282,569 4,020,591 3,562,589 105,446 21,253,367 Individually evaluated for impairment 21,146 6,613 12,454 21,995 1,909 22,114 — 50,319 3,976 140,526 Total C&I loans $ 4,203,052 $ 4,009,508 $ 1,781,274 $ 1,329,918 $ 1,022,537 $ 1,304,683 $ 4,020,591 $ 3,612,908 $ 109,422 $ 21,393,893 (a) TRUPS loans were originated prior to 2016. Total balance of TRUPS as of June 30, 2020 is $209.2 million , with $3.3 million in PD 3, $60.9 million in PD 4, $47.9 million in PD 5, $38.6 million in PD 6, $13.4 million in PD 7, $20.7 million in PD 9, $18.6 million in PD 10, and $5.8 million in PD 13. (b) LMC includes non-revolving 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. The loans are of short duration with maturities less than one year. (c) $22.7 million of C&I loans were converted from revolving to term in 2020. (d) 2020 balance includes PPP loans. Income CRE (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 Revolving Revolving Total PD Grade: 1 $ 21,886 $ — $ 392 $ 106 $ 158 $ 1,190 $ — $ — $ 23,732 2 7,798 30,919 405 216 617 3,145 — — 43,100 3 97,338 212,413 75,483 34,863 42,468 25,511 78,004 181 566,261 4 90,915 292,657 100,058 130,549 94,836 45,975 839 238 756,067 5 320,904 279,229 138,520 152,573 112,018 45,048 37,306 6,224 1,091,822 6 264,892 215,714 125,075 107,697 33,716 119,742 37,800 7,930 912,566 7 164,896 293,784 121,601 64,796 20,076 24,648 40,187 1,224 731,212 8 23,028 93,700 55,579 11,850 28,382 50,403 6,845 128 269,915 9 35,357 36,942 25,157 22,936 2,219 19,126 280 — 142,017 10 23,623 8,323 7,323 2,803 9,125 17,320 — — 68,517 11 6,936 21,414 6,890 7,347 3,862 19,638 — 1,330 67,417 12 2,962 14,437 2,383 905 652 13,476 64 228 35,107 13 525 455 771 16,185 — 570 328 — 18,834 14,15,16 515 10,808 45 19,065 128 3,882 7,553 — 41,996 Collectively evaluated for impairment 1,061,575 1,510,795 659,682 571,891 348,257 389,674 209,206 17,483 4,768,563 Individually evaluated for impairment — — — — — 160 — — 160 Total CRE-IP $ 1,061,575 $ 1,510,795 $ 659,682 $ 571,891 $ 348,257 $ 389,834 $ 209,206 $ 17,483 $ 4,768,723 Residential CRE (Dollars in thousands) 2020 2019 2018 2017 2016 prior to 2016 Revolving Revolving Total PD Grade: 1 $ — $ — $ — $ — $ — $ 20 $ — $ — $ 20 2 — — — — — — — — — 3 — 151 268 482 — 95 — — 996 4 — 722 — — — 106 — — 828 5 93 — — — 76 12 — — 181 6 14,512 106 43 333 30 234 — — 15,258 7 348 470 2,904 1,776 — 241 13 — 5,752 8 467 24 443 — 6 89 100 — 1,129 9 325 520 262 — 490 76 — — 1,673 10 179 960 277 — — 6 — — 1,422 11 4,093 8,660 218 156 — 50 — — 13,177 12 154 1,530 44 — — 538 — — 2,266 13 1,310 — — — — 132 — — 1,442 14,15,16 171 264 — — — 39 — — 474 Collectively evaluated for impairment 21,652 13,407 4,459 2,747 602 1,638 113 — 44,618 Individually evaluated for impairment — — — — — — — — — Total CRE-RES $ 21,652 $ 13,407 $ 4,459 $ 2,747 $ 602 $ 1,638 $ 113 $ — $ 44,618 The following table provides the balances of commercial loan portfolio classes with associated allowance, disaggregated by PD grade as of December 31, 2019. December 31, 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 $ 696,040 $ — $ — $ 1,848 $ — $ 697,888 3 % $ 69 2 767,048 — — 48,906 38 815,992 4 165 3 743,123 877,210 3,314 474,067 806 2,098,520 9 274 4 1,237,772 692,971 46,375 680,223 477 2,657,818 11 738 5 1,986,761 670,402 72,512 993,628 1,700 3,725,003 15 8,265 6 2,511,290 1,410,387 27,263 717,062 17,027 4,683,029 19 12,054 7 2,708,707 509,616 18,378 641,345 30,925 3,908,971 16 20,409 8 1,743,364 136,771 — 269,407 16,699 2,166,241 9 22,514 9 1,101,873 77,139 31,909 169,586 13,007 1,393,514 6 17,484 10 563,635 21,229 18,536 59,592 2,153 665,145 3 10,197 11 495,140 — — 81,682 2,302 579,124 2 13,454 12 262,906 15,158 — 28,807 1,074 307,945 1 8,471 13 232,823 — — 32,966 1,126 266,915 1 8,142 14,15,16 263,076 — — 43,400 626 307,102 1 29,318 Collectively evaluated for impairment 15,313,558 4,410,883 218,287 4,242,519 87,960 24,273,207 100 151,554 Individually evaluated for impairment 82,438 — — 1,563 — 84,001 — 6,196 Purchased credit-impaired loans 25,925 — — 4,155 820 30,900 — 848 Total commercial loans $ 15,421,921 $ 4,410,883 $ 218,287 $ 4,248,237 $ 88,780 $ 24,388,108 100 % $ 158,598 (a) Balances presented net of a $19.1 million valuation allowance. The following table reflects the amortized cost basis by year of origination and refreshed FICO scores for consumer real estate as of June 30, 2020 . Within consumer real estate, classes include home equity line of credit ("HELOC") and real estate installment. HELOCs are loans which during their draw period are classified as revolving loans. Once the draw period ends and the loan enters its repayment period, the loan converts to a term loan and is classified as revolving loans converted to term loans. All loans classified in the following table as revolving loans or revolving loans converted to term loans are HELOCs. Real estate installment loans are originated as a fixed term loan and are classified below in their vintage year from prior to 2016 to 2020. All loans in the following table classified in a vintage year are real estate installment loans. Consumer Real Estate (Dollars in thousands) 2020 2019 2018 2017 2016 Prior to 2016 Revolving Revolving Total FICO score 740 or greater $ 394,137 $ 576,132 $ 410,188 $ 420,822 $ 527,019 $ 1,255,357 $ 626,844 $ 135,436 $ 4,345,935 FICO score 720-739 43,808 67,904 26,383 37,259 48,677 132,407 76,045 28,913 461,396 FICO score 700-719 31,459 66,155 28,201 26,164 45,038 110,244 54,941 29,613 391,815 FICO score 660-699 41,314 51,096 33,382 32,745 36,625 153,335 76,593 44,067 469,157 FICO score 620-659 12,524 17,140 10,922 12,789 13,178 70,067 24,185 29,940 190,745 FICO score less than 620 2,180 11,168 5,832 9,227 14,456 79,599 25,526 45,357 193,345 Total $ 525,422 $ 789,595 $ 514,908 $ 539,006 $ 684,993 $ 1,801,009 $ 884,134 $ 313,326 $ 6,052,393 (a) $10.8 million of HELOC loans were converted from revolving to term in 2020. The following table reflects the amortized cost basis by year of origination and refreshed FICO scores for other consumer loans as of June 30, 2020 . Other Consumer (Dollars in thousands) 2020 2019 2018 2017 2016 Prior to 2016 Revolving Revolving Total FICO score 740 or greater $ 16,160 $ 36,450 $ 21,476 $ 10,499 $ 3,988 $ 14,774 $ 173,832 $ 4,401 $ 281,580 FICO score 720-739 3,238 5,226 2,784 1,615 747 1,844 27,603 1,319 44,376 FICO score 700-719 2,168 4,246 2,542 1,521 706 1,980 19,983 1,052 34,198 FICO score 660-699 3,654 6,546 3,149 2,172 1,423 2,737 27,534 1,581 48,796 FICO score 620-659 1,269 2,386 1,576 891 836 1,813 10,759 963 20,493 FICO score less than 620 333 1,059 1,044 522 2,311 3,167 10,037 1,394 19,867 Total $ 26,822 $ 55,913 $ 32,571 $ 17,220 $ 10,011 $ 26,315 $ 269,748 $ 10,710 $ 449,310 (a) $3.9 million of other consumer loans were converted from revolving to term in 2020. The following table reflects the percentage of balances outstanding by average, refreshed FICO scores for the HELOC and real estate installment classes of loans as of December 31, 2019. December 31, 2019 (Dollars in thousands) HELOC R/E Installment Loans (b) FICO score 740 or greater 62.0 % 71.9 % FICO score 720-739 8.6 8.3 FICO score 700-719 7.6 6.3 FICO score 660-699 10.8 8.1 FICO score 620-659 4.7 2.8 FICO score less than 620 (a) 6.3 2.6 Total 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. (b) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability.
Accruing And Non-Accruing Loans By Class	The following table reflects accruing and non-accruing loans by class on June 30, 2020 : 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 (a) $ 17,031,822 $ 4,671 $ 287 $ 17,036,780 $ 79,022 $ 254 $ 48,069 $ 127,345 $ 17,164,125 Loans to mortgage companies 4,019,766 825 — 4,020,591 — — — — 4,020,591 TRUPS (b) 209,177 — — 209,177 — — — — 209,177 Total commercial (C&I) 21,260,765 5,496 287 21,266,548 79,022 254 48,069 127,345 21,393,893 Commercial real estate: Income CRE 4,766,561 95 — 4,766,656 797 — 1,270 2,067 4,768,723 Residential CRE 44,618 — — 44,618 — — — — 44,618 Total commercial real estate 4,811,179 95 — 4,811,274 797 — 1,270 2,067 4,813,341 Consumer real estate: HELOC 1,136,288 5,736 6,800 1,148,824 41,608 1,720 5,308 48,636 1,197,460 R/E installment loans 4,787,467 13,778 6,000 4,807,245 31,786 2,077 13,825 47,688 4,854,933 Total consumer real estate 5,923,755 19,514 12,800 5,956,069 73,394 3,797 19,133 96,324 6,052,393 Credit card & other: Credit card 164,527 1,520 1,297 167,344 — — — — 167,344 Other 281,066 531 114 281,711 86 77 92 255 281,966 Total credit card & other 445,593 2,051 1,411 449,055 86 77 92 255 449,310 Total loans, net of unearned income $ 32,441,292 $ 27,156 $ 14,498 $ 32,482,946 $ 153,299 $ 4,128 $ 68,564 $ 225,991 $ 32,708,937 (a) $65.3 million of general C&I loans are nonaccrual loans with no related allowance. (b) TRUPS is presented net of an amortizing discount of $18.4 million . The following table reflects accruing and non-accruing loans by class on December 31, 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 $ 15,314,292 $ 7,155 $ 237 $ 15,321,684 $ 36,564 $ 14,385 $ 23,363 $ 74,312 $ 15,395,996 Loans to mortgage companies 4,410,883 — — 4,410,883 — — — — 4,410,883 TRUPS (a) 218,287 — — 218,287 — — — — 218,287 Purchased credit-impaired loans 23,840 287 1,798 25,925 — — — — 25,925 Total commercial (C&I) 19,967,302 7,442 2,035 19,976,779 36,564 14,385 23,363 74,312 20,051,091 Commercial real estate: Income CRE 4,242,044 679 — 4,242,723 — 19 1,340 1,359 4,244,082 Residential CRE 87,487 7 — 87,494 — 466 — 466 87,960 Purchased credit-impaired loans 4,752 128 95 4,975 — — — — 4,975 Total commercial real estate 4,334,283 814 95 4,335,192 — 485 1,340 1,825 4,337,017 Consumer real estate: HELOC 1,217,344 9,156 5,669 1,232,169 43,007 4,227 7,472 54,706 1,286,875 R/E installment loans (b) 4,812,446 12,894 9,170 4,834,510 20,710 1,076 9,202 30,988 4,865,498 Purchased credit-impaired loans 18,720 2,770 3,276 24,766 — — — — 24,766 Total consumer real estate 6,048,510 24,820 18,115 6,091,445 63,717 5,303 16,674 85,694 6,177,139 Credit card & other: Credit card 198,917 1,076 1,178 201,171 — — — — 201,171 Other 291,700 1,802 337 293,839 101 44 189 334 294,173 Purchased credit-impaired loans 323 98 99 520 — — — — 520 Total credit card & other 490,940 2,976 1,614 495,530 101 44 189 334 495,864 Total loans, net of unearned income $ 30,841,035 $ 36,052 $ 21,859 $ 30,898,946 $ 100,382 $ 20,217 $ 41,566 $ 162,165 $ 31,061,111 Certain previously reported amounts have been reclassified to agree with current presentation. (a) TRUPS is presented net of the valuation allowance of $19.1 million . (b) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability.
Schedule Of Troubled Debt Restructurings Occurring During The Year	The following tables reflect portfolio loans that were classified as TDRs during the three and six months ended June 30, 2020 and 2019 : Three Months Ended June 30, 2020 Six Months Ended June 30, 2020 (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 $ 4,649 $ 4,699 4 $ 10,576 $ 9,132 Total commercial (C&I) 1 4,649 4,699 4 10,576 9,132 Consumer real estate: HELOC 4 152 151 12 1,064 1,042 R/E installment loans 40 7,793 7,741 50 9,304 9,238 Total consumer real estate 44 7,945 7,892 62 10,368 10,280 Credit card & other 16 96 91 40 254 237 Total troubled debt restructurings 61 $ 12,690 $ 12,682 106 $ 21,198 $ 19,649 Three Months Ended June 30, 2019 Six Months Ended June 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 $ 222 $ 222 3 $ 14,117 $ 14,042 Total commercial (C&I) 1 222 222 3 14,117 14,042 Consumer real estate: HELOC 25 3,271 3,235 44 5,375 5,319 R/E installment loans 19 1,534 1,523 66 8,959 8,936 Total consumer real estate 44 4,805 4,758 110 14,334 14,255 Credit card & other 18 109 103 33 183 174 Total troubled debt restructurings 63 $ 5,136 $ 5,083 146 $ 28,634 $ 28,471
Schedule Of Troubled Debt Restructurings Within The Previous 12 Months	The following tables present TDRs which re-defaulted during the three and six months ended June 30, 2020 and 2019 , 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 June 30, 2020 Six Months Ended June 30, 2020 (Dollars in thousands) Number Recorded Investment Number Recorded Investment Commercial (C&I): General C&I — $ — — $ — Total commercial (C&I) — — — — Consumer real estate: HELOC 3 882 7 1,842 R/E installment loans 5 1,351 10 1,695 Total consumer real estate 8 2,233 17 3,537 Credit card & other 7 29 14 60 Total troubled debt restructurings 15 $ 2,262 31 $ 3,597 Three Months Ended June 30, 2019 Six Months Ended June 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 1 66 2 99 R/E installment loans 1 38 1 38 Total consumer real estate 2 104 3 137 Credit card & other 7 14 15 32 Total troubled debt restructurings 9 $ 118 18 $ 169
Accrued Interest	AIR is included within Other assets in the Consolidated Condensed Statements of Condition and the amounts by portfolio segment are presented in the following table. June 30 (Dollars in thousands) 2020 Commercial: Commercial, financial, and industrial $ 56,828 Commercial real estate 16,528 Consumer: Consumer real estate 18,020 Credit card & other 1,546 Allowance for Credit Losses on COVID-19 Deferrals (860 ) Total accrued interest $ 92,062
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 year ended December 31, 2019: Year Ended (Dollars in thousands) 2019 Balance, beginning of period $ 13,375 Accretion (5,792 ) Adjustment for payoffs (2,438 ) Adjustment for charge-offs (479 ) Adjustment for pool excess recovery (a) — Increase in accretable yield (b) 5,513 Disposals (4 ) Other (367 ) Balance, end of period $ 9,808 (a) Represents the removal of accretable difference for the remaining loans in a pool which is now in a recovery state. (b) Includes changes in the accretable yield due to both transfers from the nonaccretable difference and the impact of changes in the expected timing 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 December 31, 2019: December 31, 2019 (Dollars in thousands) Carrying value Unpaid balance Commercial, financial and industrial $ 24,973 $ 25,938 Commercial real estate 5,078 5,466 Consumer real estate 23,681 26,245 Credit card and other 489 567 Total $ 54,221 $ 58,216
Information By Class Related To Individually Impaired Loans	The following tables provide information at December 31, 2019 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, TRUPS valuation allowance has been excluded. December 31, 2019 (Dollars in thousands) Recorded Unpaid Related Impaired loans with no related allowance recorded: Commercial: General C&I $ 52,672 $ 63,602 $ — Income CRE 1,563 1,563 — Total $ 54,235 $ 65,165 $ — Consumer: HELOC (a) $ 4,940 $ 10,438 $ — R/E installment loans (a) 7,593 10,054 — Total $ 12,533 $ 20,492 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 29,766 $ 31,536 $ 6,196 TRUPS — — — Income CRE — — — Total $ 29,766 $ 31,536 $ 6,196 Consumer: HELOC $ 55,522 $ 59,122 $ 7,016 R/E installment loans 94,191 104,121 12,282 Credit card & other 653 653 422 Total $ 150,366 $ 163,896 $ 19,720 Total commercial $ 84,001 $ 96,701 $ 6,196 Total consumer $ 162,899 $ 184,388 $ 19,720 Total impaired loans $ 246,900 $ 281,089 $ 25,916 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance. Three Months Ended June 30 Six Months Ended June 30 2019 2019 (Dollars in thousands) Average Interest Average Interest Impaired loans with no related allowance recorded: Commercial: General C&I $ 67,337 $ 178 $ 61,552 $ 357 Loans to mortgage companies 18,628 — 9,314 — Income CRE 1,481 13 1,518 27 Residential CRE — — — — Total $ 87,446 $ 191 $ 72,384 $ 384 Consumer: HELOC (a) $ 6,462 $ — $ 7,030 $ — R/E installment loans (a) 8,910 — 8,773 — Total $ 15,372 $ — $ 15,803 $ — Impaired loans with related allowance recorded: Commercial: General C&I $ 10,760 $ — $ 9,026 $ — TRUPS 2,806 — 2,835 — Income CRE 347 — 357 9 Residential CRE — — — — Total $ 13,913 $ — $ 12,218 $ 9 Consumer: HELOC $ 62,623 $ 504 $ 63,819 $ 1,026 R/E installment loans 107,892 815 107,975 1,637 Credit card & other 692 4 691 9 Total $ 171,207 $ 1,323 $ 172,485 $ 2,672 Total commercial $ 101,359 $ 191 $ 84,602 $ 393 Total consumer $ 186,579 $ 1,323 $ 188,288 $ 2,672 Total impaired loans $ 287,938 $ 1,514 $ 272,890 $ 3,065 (a) All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30, 2020 and 2019 : (Dollars in thousands) C&I Commercial Real Estate Consumer Real Estate (a) Credit Card and Other Total Balance as of April 1, 2020 $ 254,516 $ 47,625 $ 123,022 $ 19,327 $ 444,490 Charge-offs (18,201 ) (61 ) (1,968 ) (2,677 ) (22,907 ) Recoveries 1,073 156 3,987 1,082 6,298 Provision/(provision credit) for loan losses 81,334 9,565 18,716 385 110,000 Balance as of June 30, 2020 318,722 57,285 143,757 18,117 537,881 Balance as of January 1, 2020 122,486 36,112 28,443 13,266 200,307 Adoption of ASU 2016-13 18,782 (7,348 ) 92,992 1,968 106,394 Charge-offs (24,952 ) (642 ) (4,278 ) (6,488 ) (36,360 ) Recoveries 2,008 729 7,542 2,261 12,540 Provision/(provision credit) for loan loses 200,398 28,434 19,058 7,110 255,000 Balance as of June 30, 2020 318,722 57,285 143,757 18,117 537,881 Allowance - individually evaluated for impairment 16,577 — 13,275 352 30,204 Allowance - collectively evaluated for impairment 302,145 57,285 130,482 17,765 507,677 Loans, net of unearned as of June 30, 2020: Individually evaluated for impairment 140,526 160 148,543 688 289,917 Collectively evaluated for impairment 21,253,367 4,813,181 5,903,850 448,622 32,419,020 Total loans, net of unearned income (b) $ 21,393,893 $ 4,813,341 $ 6,052,393 $ 449,310 $ 32,708,937 Balance as of April 1, 2019 $ 103,713 $ 34,382 $ 34,154 $ 12,662 $ 184,911 Charge-offs (6,590 ) (121 ) (1,714 ) (3,798 ) (12,223 ) Recoveries 519 (88 ) 5,525 1,105 7,061 Provision/(provision credit) for loan losses 18,454 (1,220 ) (6,433 ) 2,199 13,000 Balance as of June 30, 2019 116,096 32,953 31,532 12,168 192,749 Balance as of January 1, 2019 98,947 31,311 37,439 12,727 180,424 Charge-offs (9,691 ) (555 ) (4,518 ) (7,986 ) (22,750 ) Recoveries 1,348 (31 ) 9,566 2,192 13,075 Provision/(provision credit) for loan losses 25,492 2,228 (10,955 ) 5,235 22,000 Balance as of June 30, 2019 116,096 32,953 31,532 12,168 192,749 Allowance - individually evaluated for impairment 8,484 — 22,255 442 31,181 Allowance - collectively evaluated for impairment 106,758 32,953 8,199 11,669 159,579 Allowance - purchased credit-impaired loans 854 — 1,078 57 1,989 Loans, net of unearned as of June 30, 2019: Individually evaluated for impairment 115,808 1,777 182,442 699 300,726 Collectively evaluated for impairment 18,904,621 3,852,027 6,093,863 492,774 29,343,285 Purchased credit-impaired loans 33,840 7,227 26,829 903 68,799 Total loans, net of unearned income $ 19,054,269 $ 3,861,031 $ 6,303,134 $ 494,376 $ 29,712,810 a) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability . b) C&I loans as of June 30, 2020 include $2.1 billion in PPP loans which due to the government guarantee and forgiveness provisions are considered to have no credit risk and therefore have no allowance for loan losses.

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
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: June 30, 2020 December 31, 2019 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangibles $ 157,150 $ (56,561 ) $ 100,589 $ 157,150 $ (47,372 ) $ 109,778 Customer relationships (a) 23,000 (6,158 ) 16,842 77,865 (60,150 ) 17,715 Other (b) 5,622 (3,445 ) 2,177 5,622 (2,915 ) 2,707 Total $ 185,772 $ (66,164 ) $ 119,608 $ 240,637 $ (110,437 ) $ 130,200 (a) 2020 decrease in gross carrying amounts and accumulated amortization associated with $54.9 million of customer relationships fully amortized at December 31, 2019. (b) 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 June 30, 2020 the estimated aggregated amortization expense is expected to be: (Dollars in thousands) Year Amortization Remainder of 2020 $ 10,568 2021 19,547 2022 17,412 2023 16,117 2024 14,679 2025 12,580
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 June 30, 2020 and December 31, 2019 . (Dollars in thousands) Regional Banking Fixed Income Total December 31, 2018 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — June 30, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 December 31, 2019 $ 1,289,819 $ 142,968 $ 1,432,787 Additions — — — June 30, 2020 $ 1,289,819 $ 142,968 $ 1,432,787

Other Income And Other Expense

Other Income And Other Expense (Tables)	6 Months Ended
	Jun. 30, 2020
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 Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 All other income and commissions: Deferred compensation (a) $ 8,171 $ 1,938 $ (1,336 ) $ 7,412 Other service charges 4,582 5,624 9,801 9,493 Mortgage banking 4,138 2,572 6,569 4,458 ATM and interchange fees 4,009 4,262 8,221 7,503 Letter of credit fees 1,559 1,253 3,021 2,621 Electronic banking fees 1,182 1,267 2,212 2,538 Dividend income 1,057 1,809 2,187 4,122 Insurance commissions 401 566 1,190 1,190 Gain/(loss) on extinguishment of debt — — — (1 ) Other 4,890 6,376 12,488 10,962 Total $ 29,989 $ 25,667 $ 44,353 $ 50,298 All other expense: Credit expense on unfunded commitments (b) $ 11,158 $ (489 ) $ 20,388 $ (93 ) Non-service components of net periodic pension and post-retirement cost 2,961 559 5,469 991 Other insurance and taxes 2,599 2,495 5,278 5,189 Miscellaneous loan costs 2,356 857 3,450 1,884 Supplies 1,933 1,342 4,344 3,146 Employee training and dues 654 1,251 1,995 2,708 Customer relations 632 1,540 2,636 3,139 Travel and entertainment 474 2,906 3,183 5,618 OREO 437 25 253 (341 ) Tax credit investments 426 267 772 942 Litigation and regulatory matters (c) 3 (8,230 ) 16 (8,217 ) Other 12,118 26,158 21,193 33,046 Total $ 35,751 $ 28,681 $ 68,977 $ 48,012 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Amounts driven by market conditions and are mirrored by changes in deferred compensation expense which is included in employee compensation expense; Six months ended June 30, 2020 decrease driven by equity market valuations. (b) Three and six months ended June 30, 2020 increases largely driven by the economic forecast attributabl e to the COVID-19 pandemic. (c) Litigation and regulatory matters for the three and six months ended June 30, 2019 includes an $8.3 million expense reversal related to the settlement of litigation matters within the Non-Strategic segment.

Components of Other Comprehen_2

Components of Other Comprehensive Income/(loss) (Tables)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30, 2020 and 2019 : (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of April 1, 2020 $ 119,357 $ 16,288 $ (271,809 ) $ (136,164 ) Net unrealized gains/(losses) (1,030 ) 1,640 — 610 Amounts reclassified from AOCI — (1,623 ) 2,379 756 Other comprehensive income/(loss) (1,030 ) 17 2,379 1,366 Balance as of June 30, 2020 $ 118,327 $ 16,305 $ (269,430 ) $ (134,798 ) Balance as of January 1, 2020 $ 31,079 $ 3,227 $ (273,914 ) $ (239,608 ) Net unrealized gains/(losses) 87,248 14,795 — 102,043 Amounts reclassified from AOCI — (1,717 ) 4,484 2,767 Other comprehensive income/(loss) 87,248 13,078 4,484 104,810 Balance as of June 30, 2020 $ 118,327 $ 16,305 $ (269,430 ) $ (134,798 ) (Dollars in thousands) Securities AFS Cash Flow Pension and Total Balance as of April 1, 2019 $ (27,121 ) $ (6,725 ) $ (287,305 ) $ (321,151 ) Net unrealized gains/(losses) 47,991 7,575 — 55,566 Amounts reclassified from AOCI 201 1,334 1,561 3,096 Other comprehensive income/(loss) 48,192 8,909 1,561 58,662 Balance as of June 30, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 ) Balance as of January 1, 2019 $ (75,736 ) $ (12,112 ) $ (288,768 ) $ (376,616 ) Net unrealized gains/(losses) 96,606 11,511 — 108,117 Amounts reclassified from AOCI 201 2,785 3,024 6,010 Other comprehensive income/(loss) 96,807 14,296 3,024 114,127 Balance as of June 30, 2019 $ 21,071 $ 2,184 $ (285,744 ) $ (262,489 )
Reclassification Out Of Accumulated Other Comprehensive Income	Reclassifications from AOCI, and related tax effects, were as follows: (Dollars in thousands) Three Months Ended Six Months Ended Details about AOCI 2020 2019 2020 2019 Affected line item in the statement where net income is presented Securities AFS: Realized (gains)/losses on securities AFS $ — $ 267 $ — $ 267 Debt securities gains/(losses), net Tax expense/(benefit) — (66 ) — (66 ) Provision/(benefit) for income taxes — 201 — 201 Cash flow hedges: Realized (gains)/losses on cash flow hedges (2,153 ) 1,772 (2,277 ) 3,699 Interest and fees on loans Tax expense/(benefit) 530 (438 ) 560 (914 ) Provision/(benefit) for income taxes (1,623 ) 1,334 (1,717 ) 2,785 Pension and Postretirement Plans: Amortization of prior service cost and net actuarial gain/(loss) 3,155 2,074 5,946 4,017 All other expense Tax expense/(benefit) (776 ) (513 ) (1,462 ) (993 ) Provision/(benefit) for income taxes 2,379 1,561 4,484 3,024 Total reclassification from AOCI $ 756 $ 3,096 $ 2,767 $ 6,010

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
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 Six Months Ended (Dollars and shares in thousands, except per share data) 2020 2019 2020 2019 Net income/(loss) $ 56,665 $ 113,742 $ 73,137 $ 217,147 Net income attributable to noncontrolling interest 2,851 2,852 5,703 5,672 Net income/(loss) attributable to controlling interest 53,814 110,890 67,434 211,475 Preferred stock dividends 1,550 1,550 3,100 3,100 Net income/(loss) available to common shareholders $ 52,264 $ 109,340 $ 64,334 $ 208,375 Weighted average common shares outstanding—basic 312,090 314,063 311,843 315,740 Effect of dilutive securities 846 1,723 949 1,980 Weighted average common shares outstanding—diluted 312,936 315,786 312,792 317,720 Net income/(loss) per share available to common shareholders $ 0.17 $ 0.35 $ 0.21 $ 0.66 Diluted income/(loss) per share available to common shareholders $ 0.17 $ 0.35 $ 0.21 $ 0.66
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 Six Months Ended (Shares in thousands) 2020 2019 2020 2019 Stock options excluded from the calculation of diluted EPS 5,134 2,773 3,291 2,692 Weighted average exercise price of stock options excluded from the calculation of diluted EPS $ 15.80 $ 21.03 $ 18.26 $ 21.39 Other equity awards excluded from the calculation of diluted EPS 4,389 2,403 3,934 1,985

Pension, Savings, And Other E_2

Pension, Savings, And Other Employee Benefits (Tables)	6 Months Ended
	Jun. 30, 2020
Retirement Benefits, Description [Abstract]
Schedule of Components of Net Periodic Benefit Cost	The components of net periodic benefit cost for the three months ended June 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2020 2019 2020 2019 Components of net periodic benefit cost Service cost $ 8 $ 8 $ 24 $ 24 Interest cost 5,910 7,575 307 351 Expected return on plan assets (6,169 ) (9,173 ) (311 ) (269 ) Amortization of unrecognized: Prior service cost/(credit) — — 8 — Actuarial (gain)/loss 3,224 2,435 (79 ) (117 ) Net periodic benefit cost/(credit) $ 2,973 $ 845 $ (51 ) $ (11 ) The components of net periodic benefit cost for the six months ended June 30 are as follows: Pension Benefits Other Benefits (Dollars in thousands) 2020 2019 2020 2019 Components of net periodic benefit cost Service cost $ 16 $ 16 $ 49 $ 48 Interest cost 11,819 15,150 611 702 Expected return on plan assets (12,337 ) (18,346 ) (622 ) (538 ) Amortization of unrecognized: Prior service cost/(credit) — — 16 — Actuarial (gain)/loss 6,448 4,870 (154 ) (234 ) Net periodic benefit cost/(credit) $ 5,946 $ 1,690 $ (100 ) $ (22 )

Business Segment Information (T

Business Segment Information (Tables)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30 : Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Consolidated Net interest income $ 305,344 $ 303,610 $ 608,146 $ 598,118 Provision/(provision credit) for loan losses (a) 110,000 13,000 255,000 22,000 Noninterest income 206,269 157,993 381,025 299,038 Noninterest expense 332,168 300,394 643,487 596,484 Income/(loss) before income taxes 69,445 148,209 90,684 278,672 Provision/(benefit) for income taxes 12,780 34,467 17,547 61,525 Net income/(loss) $ 56,665 $ 113,742 $ 73,137 $ 217,147 Average assets $ 47,934,074 $ 41,243,007 $ 45,742,993 $ 41,064,093 (a) Increase in provision expense for the three and six months ended June 30, 2020 is primarily due to the economic forecast attributable to the COVID-19 pandemic. Three Months Ended Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Regional Banking Net interest income $ 349,749 $ 297,534 $ 649,936 $ 583,636 Provision/(provision credit) for loan losses (a) 108,311 17,776 253,752 31,218 Noninterest income 79,312 81,565 161,208 154,626 Noninterest expense 202,297 192,413 413,331 391,043 Income/(loss) before income taxes 118,453 168,910 144,061 316,001 Provision/(benefit) for income taxes 26,948 39,788 31,349 73,909 Net income/(loss) $ 91,505 $ 129,122 $ 112,712 $ 242,092 Average assets $ 35,732,966 $ 30,210,728 $ 33,952,986 $ 29,515,773 Fixed Income Net interest income $ 13,545 $ 6,171 $ 24,459 $ 13,503 Noninterest income 113,235 65,622 208,958 119,429 Noninterest expense 83,039 55,534 164,102 106,067 Income/(loss) before income taxes 43,741 16,259 69,315 26,865 Provision/(benefit) for income taxes 10,679 3,840 16,778 6,297 Net income/(loss) $ 33,062 $ 12,419 $ 52,537 $ 20,568 Average assets $ 3,260,362 $ 3,127,305 $ 3,512,277 $ 2,988,548 Corporate Net interest income/(expense) $ (63,493 ) $ (7,146 ) $ (76,852 ) $ (15,060 ) Noninterest income (b) 12,943 9,401 9,225 22,754 Noninterest expense (b) (c) (d) 43,218 56,873 58,667 98,652 Income/(loss) before income taxes (93,768 ) (54,618 ) (126,294 ) (90,958 ) Provision/(benefit) for income taxes (25,097 ) (13,525 ) (31,469 ) (25,296 ) Net income/(loss) $ (68,671 ) $ (41,093 ) $ (94,825 ) $ (65,662 ) Average assets $ 8,168,307 $ 6,827,937 $ 7,476,249 $ 7,439,591 Non-Strategic Net interest income $ 5,543 $ 7,051 $ 10,603 $ 16,039 Provision/(provision credit) for loan losses (a) 1,689 (4,776 ) 1,248 (9,218 ) Noninterest income 779 1,405 1,634 2,229 Noninterest expense 3,614 (4,426 ) 7,387 722 Income/(loss) before income taxes 1,019 17,658 3,602 26,764 Provision/(benefit) for income taxes 250 4,364 889 6,615 Net income/(loss) $ 769 $ 13,294 $ 2,713 $ 20,149 Average assets $ 772,439 $ 1,077,037 $ 801,481 $ 1,120,181 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Increase in provision expense for the three and six months ended June 30, 2020 is primarily due to the economic forecast attributable to the COVID-19 pandemic. (b) Balance for the six months ended June 30, 2020 includes a decrease due to fluctuations in deferred compensation income driven by equity market valuations and mirrored by changes in deferred compensation expense, which is included in employee compensation expense. (c) 2020 and 2019 include acquisition-related expenses and restructuring-related costs associated with efficiency initiatives; refer to Note 2 - Acquisitions and Divestitures and Note 17 - Restructuring, Repositioning, and Efficiency for additional information. (d) Three and six months ended June 30, 2019 includes $9.1 million 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 June 30, 2020 and 2019 : Three months ended June 30, 2020 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 81 $ 112,340 $ — $ — $ 112,421 Deposit transactions and cash management 29,541 — 1,204 42 30,787 Brokerage, management fees and commissions 13,800 — — — 13,800 Trust services and investment management 7,750 — (17 ) — 7,733 Bankcard income 6,551 — 74 27 6,652 BOLI (b) — — 6,380 — 6,380 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — (1,493 ) — (1,493 ) All other income and commissions (c) 21,589 895 6,795 710 29,989 Total noninterest income $ 79,312 $ 113,235 $ 12,943 $ 779 $ 206,269 (a) Includes $8.8 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 June 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 46 $ 65,262 $ — $ 1,106 $ 66,414 Deposit transactions and cash management 30,632 1 1,707 34 32,374 Brokerage, management fees and commissions 14,120 — — — 14,120 Trust services and investment management 7,902 — (14 ) — 7,888 Bankcard income 6,597 — 60 (302 ) 6,355 BOLI (b) — — 5,126 — 5,126 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 316 — 316 All other income and commissions (c) 22,268 359 2,473 567 25,667 Total noninterest income $ 81,565 $ 65,622 $ 9,401 $ 1,405 $ 157,993 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $7.1 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. The following tables reflect a disaggregation of FHN’s noninterest income by major product line and reportable segment for the six months ended June 30, 2020 and 2019 : Six Months Ended June 30, 2020 (Dollars in thousands) Regional Banking Fixed Income Corporate Non-Strategic Consolidated Noninterest income: Fixed income (a) $ 202 $ 207,854 $ — $ — $ 208,056 Deposit transactions and cash management 58,368 — 2,640 69 61,077 Brokerage, management fees and commissions 29,205 — — — 29,205 Trust services and investment management 14,963 — (35 ) — 14,928 Bankcard income 13,703 — 143 59 13,905 BOLI (b) — — 10,969 — 10,969 Debt securities gains/(losses), net (b) — — — — — Equity securities gains/(losses), net (b) — — (1,468 ) — (1,468 ) All other income and commissions (c) (d) 44,767 1,104 (3,024 ) 1,506 44,353 Total noninterest income $ 161,208 $ 208,958 $ 9,225 $ 1,634 $ 381,025 (a) Includes $18.1 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. (d) Corporate balance includes negative deferred compensation income driven by equity market valuations. Six Months Ended June 30, 2019 (Dollars in thousands) Regional Banking Fixed Income Corporate Non- Strategic Consolidated Noninterest income: Fixed income (a) $ 63 $ 118,994 $ — $ 1,106 $ 120,163 Deposit transactions and cash management 60,658 4 3,270 63 63,995 Brokerage, management fees and commissions 26,753 — — — 26,753 Trust services and investment management 14,958 — (44 ) — 14,914 Bankcard income 13,640 — 122 (455 ) 13,307 BOLI (b) — — 9,528 — 9,528 Debt securities gains/(losses), net (b) — — (267 ) — (267 ) Equity securities gains/(losses), net (b) — — 347 — 347 All other income and commissions (c) 38,554 431 9,798 1,515 50,298 Total noninterest income $ 154,626 $ 119,429 $ 22,754 $ 2,229 $ 299,038 Certain previously reported amounts have been reclassified to agree with current presentation. (a) Includes $14.4 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.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2020
Variable Interest Entities [Abstract]
Summary Of VIEs Consolidated By FHN	The following table summarizes the carrying value of assets and liabilities associated with rabbi trusts used for deferred compensation plans which are consolidated by FHN as of June 30, 2020 and December 31, 2019 : ( Dollars in thousands ) June 30, 2020 December 31, 2019 Assets: Other assets $ 93,212 $ 91,873 Total assets $ 93,212 $ 91,873 Liabilities: Other liabilities $ 71,783 $ 70,830 Total liabilities $ 71,783 $ 70,830
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 six months ended June 30, 2020 , and 2019 for LIHTC investments accounted for under the proportional amortization method. Three Months Ended Six Months Ended ( Dollars in thousands ) 2020 2019 2020 2019 Provision/(benefit) for income taxes: Amortization of qualifying LIHTC investments $ 5,752 $ 4,287 $ 11,313 $ 8,285 Low income housing tax credits (4,758 ) (3,522 ) (9,356 ) (7,151 ) Other tax benefits related to qualifying LIHTC investments (2,583 ) (1,609 ) (5,138 ) (3,219 )
Summary Of VIEs Not Consolidated By FHN	The following table summarizes FHN’s nonconsolidated VIEs as of June 30, 2020 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 248,712 $ 124,318 (a) Other tax credit investments (b) 5,959 — Other assets Small issuer trust preferred holdings (c) 209,177 — Loans, net of unearned income On-balance sheet trust preferred securitization 32,144 82,030 (d) Proprietary residential mortgage securitizations 628 — Trading securities Holdings of agency mortgage-backed securities (c) 4,561,144 — (e) Commercial loan troubled debt restructurings (f) 43,432 — Loans, net of unearned income Sale-leaseback transaction 18,052 — (g) Proprietary trust preferred issuances (h) — 167,014 Term borrowings (a) Maximum loss exposure represents $124.4 million of current investments and $124.3 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 2024. (b) A liability is not recognized as investments are written down over the life of the related tax credit. Maximum loss exposure represents the value of current investments. (c) Maximum loss exposure represents the value of current investments. A liability is not recognized as FHN is solely a holder of the trusts’ securities. (d) Includes $112.5 million classified as Loans, net of unearned income, and $1.7 million classified as Trading securities which are offset by $82.0 million classified as Term borrowings. (e) Includes $.7 billion classified as Trading securities and $3.9 billion classified as Securities available-for-sale. (f) Maximum loss exposure represents $43.4 million of current receivables and contractual funding commitments on loans related to commercial borrowers involved in a troubled debt restructuring were non-material . (g) Maximum loss exposure represents the current loan balance plus additional funding commitments. (h) No exposure to loss due to nature of FHN's involvement. The following table summarizes FHN’s nonconsolidated VIEs as of December 31, 2019 : (Dollars in thousands) Maximum Loss Exposure Liability Recognized Classification Type Low income housing partnerships $ 237,668 $ 136,404 (a) Other tax credit investments (b) (c) 6,282 — Other assets Small issuer trust preferred holdings (d) 238,397 — Loans, net of unearned income On-balance sheet trust preferred securitization 33,265 80,908 (e) Proprietary residential mortgage securitizations 941 — Trading securities Holdings of agency mortgage-backed securities (d) 4,537,685 — (f) Commercial loan troubled debt restructurings (g) 45,169 — Loans, net of unearned income Sale-leaseback transaction 18,111 — (h) Proprietary trust preferred issuances (i) — 167,014 Term borrowings (a) Maximum loss exposure represents $101.3 million of current investments and $136.4 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 2023. (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. As of December 31, 2019, there were no investments 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 $80.9 million classified as Term borrowings. (f) Includes $.5 billion classified as Trading securities and $4.0 billion classified as Securities available-for-sale. (g) Maximum loss exposure represents $43.4 million of current receivables and $ 1.8 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)	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 3,667,914 $ 254,246 $ 1,827 Offsetting upstream interest rate contracts 3,667,914 7,454 17,667 Forwards and futures purchased 7,351,632 31,853 787 Forwards and futures sold 7,744,323 3,555 29,696 December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer interest rate contracts $ 2,697,522 $ 65,768 $ 6,858 Offsetting upstream interest rate contracts 2,697,522 2,583 3,994 Option contracts purchased 40,000 131 — Forwards and futures purchased 9,217,350 17,029 3,187 Forwards and futures sold 9,403,112 3,611 16,620
Derivatives Associated With Interest Rate Risk Management Activities	The following tables summarize FHN’s derivatives associated with interest rate risk management activities as of June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 3,679,991 $ 297,233 $ 258 Offsetting upstream interest rate contracts 3,679,991 4,877 24,922 Debt Hedging Hedging Instruments: Interest rate swaps $ 500,000 $ 27 N/A Hedged Items: Term borrowings: Par N/A N/A $ 500,000 Cumulative fair value hedging adjustments N/A N/A 2,142 Unamortized premium/(discount) and issuance costs N/A N/A (296 ) Total carrying value N/A N/A $ 501,846 December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Customer Interest Rate Contracts Hedging Hedging Instruments and Hedged Items: Customer interest rate contracts $ 3,044,067 $ 90,394 $ 3,515 Offsetting upstream interest rate contracts 3,044,067 3,537 9,735 Debt Hedging Hedging Instruments: Interest rate swaps $ 500,000 N/A $ 69 Hedged Items: Term borrowings: Par N/A N/A $ 500,000 Cumulative fair value hedging adjustments N/A N/A (1,604 ) Unamortized premium/(discount) and issuance costs N/A N/A (740 ) Total carrying value N/A N/A $ 497,656
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 six months ended June 30, 2020 and 2019 : Three Months Ended Six Months Ended 2020 2019 2020 2019 (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) $ 15,844 $ 50,706 $ 211,396 $ 79,818 Offsetting upstream interest rate contracts (a) (15,844 ) (50,706 ) (211,396 ) (79,818 ) Debt Hedging Hedging Instruments: Interest rate swaps (b) $ (737 ) $ 6,697 $ 4,197 $ 10,976 Hedged Items: Term borrowings (a) (c) 720 (6,605 ) (3,745 ) (10,871 ) (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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 700,000 $ 29 $ 48 Hedged Items: Variability in cash flows related to debt instruments (primarily loans) N/A $ 700,000 N/A December 31, 2019 (Dollars in thousands) Notional Assets Liabilities Cash Flow Hedges Hedging Instruments: Interest rate swaps $ 900,000 N/A $ 241 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 six months ended June 30, 2020 and 2019 : Three Months Ended Six Months Ended 2020 2019 2020 2019 (Dollars in thousands) Gains/(Losses) Gains/(Losses) Gains/(Losses) Gains/(Losses) Cash Flow Hedges Hedging Instruments: Interest rate swaps (a) $ 69 $ 11,896 $ 17,443 $ 19,114 Gain/(loss) recognized in Other comprehensive income/(loss) 1,640 7,575 14,795 11,511 Gain/(loss) reclassified from AOCI into Interest income (1,623 ) 1,334 (1,717 ) 2,785 (a) Approximately $9.6 million of pre-tax gains 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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 Interest rate derivative contracts $ 564,037 $ — $ 564,037 $ (2,253 ) $ (348,497 ) $ 213,287 Forward contracts 35,408 — 35,408 (6,927 ) (12,590 ) 15,891 $ 599,445 $ — $ 599,445 $ (9,180 ) $ (361,087 ) $ 229,178 December 31, 2019 Interest rate derivative contracts $ 162,344 $ — $ 162,344 $ (5,604 ) $ (143,334 ) $ 13,406 Forward contracts 20,640 — 20,640 (13,292 ) (2,000 ) 5,348 $ 182,984 $ — $ 182,984 $ (18,896 ) $ (145,334 ) $ 18,754 (a) Included in Derivative assets on the Consolidated Condensed Statements of Condition. As of June 30, 2020 and December 31, 2019 , $.3 million and $.1 million , respectively, of derivative assets have been excluded from these tables because they are generally not subject to master netting or similar agreements.
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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 Interest rate derivative contracts $ 44,743 $ — $ 44,743 $ (2,253 ) $ (38,832 ) $ 3,658 Forward contracts 30,483 — 30,483 (6,927 ) (23,556 ) — $ 75,226 $ — $ 75,226 $ (9,180 ) $ (62,388 ) $ 3,658 December 31, 2019 Interest rate derivative contracts $ 24,431 $ — $ 24,431 $ (5,604 ) $ (18,689 ) $ 138 Forward contracts 19,807 — 19,807 (13,292 ) (6,515 ) — $ 44,238 $ — $ 44,238 $ (18,896 ) $ (25,204 ) $ 138 (a) Included in Derivative liabilities on the Consolidated Condensed Statements of Condition. As of June 30, 2020 and December 31, 2019 , $19.2 million and $23.2 million , respectively, of derivative liabilities (primarily Visa-related derivatives) have been excluded from these tables because they are generally not subject to master netting or similar agreements.

Master Netting and Similar Ag_2

Master Netting and Similar Agreements—Repurchase, Reverse Repurchase, and Securities Borrowing Transactions (Tables)	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 $ 302,267 $ — $ 302,267 $ (23,207 ) $ (277,660 ) $ 1,400 December 31, 2019 586,629 — 586,629 (21,004 ) (562,702 ) 2,923
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 June 30, 2020 and December 31, 2019 : 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: June 30, 2020 $ 1,482,585 $ — $ 1,482,585 $ (23,207 ) $ (1,459,297 ) $ 81 December 31, 2019 716,925 — 716,925 (21,004 ) (695,879 ) 42
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 June 30, 2020 and December 31, 2019 : June 30, 2020 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 539,974 $ — $ 539,974 Government agency issued MBS 512,170 14,442 526,612 Government agency issued CMO — 6,052 6,052 Other U.S. government agencies 139,756 — 139,756 Government guaranteed loans (SBA and USDA) 270,191 — 270,191 Total Securities sold under agreements to repurchase $ 1,462,091 $ 20,494 $ 1,482,585 December 31, 2019 (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Securities sold under agreements to repurchase: U.S. treasuries $ 41,364 $ — $ 41,364 Government agency issued MBS 341,173 4,545 345,718 Other U.S. government agencies 54,924 — 54,924 Government guaranteed loans (SBA and USDA) 274,919 — 274,919 Total Securities sold under agreements to repurchase $ 712,380 $ 4,545 $ 716,925

Fair Value of Assets & Liabil_2

Fair Value of Assets & Liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 : June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 119,121 $ — $ 119,121 Government agency issued MBS — 431,765 — 431,765 Government agency issued CMO — 226,732 — 226,732 Other U.S. government agencies — 91,203 — 91,203 States and municipalities — 17,467 — 17,467 Corporate and other debt — 229,556 — 229,556 Equity, mutual funds, and other — (22 ) — (22 ) Total trading securities—fixed income — 1,115,822 — 1,115,822 Trading securities—mortgage banking — — 628 628 Loans held-for-sale (elected fair value) — — 13,263 13,263 Securities available-for-sale: U.S. treasuries — 999,975 — 999,975 Government agency issued MBS — 2,487,382 — 2,487,382 Government agency issued CMO — 1,415,265 — 1,415,265 Other U.S. government agencies — 417,292 — 417,292 States and municipalities — 90,383 — 90,383 Corporate and other debt — 40,413 — 40,413 Interest-Only Strip (elected fair value) — — 25,446 25,446 Total securities available-for-sale — 5,450,710 25,446 5,476,156 Other assets: Deferred compensation mutual funds 48,572 — — 48,572 Equity, mutual funds, and other 22,692 — — 22,692 Derivatives, forwards and futures 35,408 — — 35,408 Derivatives, interest rate contracts — 563,866 — 563,866 Derivatives, other — 260 170 430 Total other assets 106,672 564,126 170 670,968 Total assets $ 106,672 $ 7,130,658 $ 39,507 $ 7,276,837 Trading liabilities—fixed income: U.S. treasuries $ — $ 195,753 $ — $ 195,753 Other U.S.government agencies — 578 — 578 States and municipalities — 756 — 756 Corporate and other debt — 35,655 — 35,655 Total trading liabilities—fixed income — 232,742 — 232,742 Other liabilities: Derivatives, forwards and futures 30,483 — — 30,483 Derivatives, interest rate contracts — 44,722 — 44,722 Derivatives, other — 369 18,815 19,184 Total other liabilities 30,483 45,091 18,815 94,389 Total liabilities $ 30,483 $ 277,833 $ 18,815 $ 327,131 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis as of December 31, 2019 : December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Trading securities—fixed income: U.S. treasuries $ — $ 134,844 $ — $ 134,844 Government agency issued MBS — 268,024 — 268,024 Government agency issued CMO — 250,652 — 250,652 Other U.S. government agencies — 124,972 — 124,972 States and municipalities — 120,744 — 120,744 Corporate and other debt — 445,253 — 445,253 Equity, mutual funds, and other — 777 — 777 Total trading securities—fixed income — 1,345,266 — 1,345,266 Trading securities—mortgage banking — — 941 941 Loans held-for-sale (elected fair value) — — 14,033 14,033 Securities available-for-sale: U.S. treasuries — 100 — 100 Government agency issued MBS — 2,348,517 — 2,348,517 Government agency issued CMO — 1,670,492 — 1,670,492 Other U.S. government agencies — 306,092 — 306,092 States and municipalities — 60,526 — 60,526 Corporate and other debt — 40,540 — 40,540 Interest-Only Strip (elected fair value) — — 19,136 19,136 Total securities available-for-sale — 4,426,267 19,136 4,445,403 Other assets: Deferred compensation mutual funds 46,815 — — 46,815 Equity, mutual funds, and other 22,643 — — 22,643 Derivatives, forwards and futures 20,640 — — 20,640 Derivatives, interest rate contracts — 162,413 — 162,413 Derivatives, other — 62 — 62 Total other assets 90,098 162,475 — 252,573 Total assets $ 90,098 $ 5,934,008 $ 34,110 $ 6,058,216 Trading liabilities—fixed income: U.S. treasuries $ — $ 406,380 $ — $ 406,380 Other U.S. government agencies — 88 — 88 Government agency issued MBS — 33 — 33 Corporate and other debt — 99,080 — 99,080 Total trading liabilities—fixed income — 505,581 — 505,581 Other liabilities: Derivatives, forwards and futures 19,807 — — 19,807 Derivatives, interest rate contracts — 24,412 — 24,412 Derivatives, other — 466 22,795 23,261 Total other liabilities 19,807 24,878 22,795 67,480 Total liabilities $ 19,807 $ 530,459 $ 22,795 $ 573,061
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 June 30, 2020 and 2019 , on a recurring basis are summarized as follows: Three Months Ended June 30, 2020 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on April 1, 2020 $ 785 $ 23,104 $ 13,584 $ (20,890 ) Total net gains/(losses) included in: Net income (157 ) (1,233 ) 422 (201 ) Purchases — — — — Sales — — — — Settlements — — (743 ) 2,446 Net transfers into/(out of) Level 3 — 3,575 (b) — — Balance on June 30, 2020 $ 628 $ 25,446 $ 13,263 $ (18,645 ) Net unrealized gains/(losses) included in net income $ — (a) $ (959 ) (c) $ 422 (a) $ (201 ) (d) Three Months Ended June 30, 2019 (Dollars in thousands) Trading securities Interest-only-strips-AFS Loans held-for-sale Net derivative Balance on April 1, 2019 $ 1,397 $ 13,195 $ 15,751 $ (28,970 ) Total net gains/(losses) included in: Net income 8 (141 ) 321 (19 ) Purchases — — 10 — Sales — (14,199 ) — — Settlements (150 ) — (990 ) 2,444 Net transfers into/(out of) Level 3 — 18,937 (b) — — Balance on June 30, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Net unrealized gains/(losses) included in net income $ (36 ) (a) $ (543 ) (c) $ 321 (a) $ (19 ) (d) (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) Included in Other expense. The changes in Level 3 assets and liabilities measured at fair value for the six months ended June 30, 2020 and 2019 , on a recurring basis are summarized as follows: Six Months Ended June 30, 2020 (Dollars in thousands) Trading securities Interest- only strips- AFS Loans held- for-sale Net derivative Balance on January 1, 2020 $ 941 $ 19,136 $ 14,033 $ (22,795 ) Total net gains/(losses) included in: Net income (313 ) (2,528 ) 751 (712 ) Purchases — 5,481 — — Sales — (8,703 ) — — Settlements — — (1,521 ) 4,862 Net transfers into/(out of) Level 3 — 12,060 (b) — — Balance on June 30, 2020 $ 628 $ 25,446 $ 13,263 $ (18,645 ) Net unrealized gains/(losses) included in net income $ — (a) $ (1,813 ) (c) $ 751 (a) $ (712 ) (d) Six Months Ended June 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 29 (1,399 ) 816 116 Purchases — 86 10 — Sales — (27,211 ) — — Settlements (298 ) — (2,007 ) 4,879 Net transfers into/(out of) Level 3 — 36,414 (b) — — Balance on June 30, 2019 $ 1,255 $ 17,792 $ 15,092 $ (26,545 ) Net unrealized gains/(losses) included in net income $ (66 ) (a) $ (1,435 ) (c) $ 816 (a) $ 116 (d) (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) Included in Other expense.
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 June 30, 2020 , and December 31, 2019 , respectively, the following tables provide the level of valuation assumptions used to determine each adjustment and the related carrying value. Carrying value at June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 643,445 $ 774 $ 644,219 Loans held-for-sale—first mortgages — — 504 504 Loans, net of unearned income (a) — — 66,062 66,062 OREO (b) — — 13,177 13,177 Other assets (c) — — 9,835 9,835 Carrying value at December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total Loans held-for-sale—SBAs and USDA $ — $ 492,595 $ 929 $ 493,524 Loans held-for-sale—first mortgages — — 516 516 Loans, net of unearned income (a) — — 42,208 42,208 OREO (b) — — 15,660 15,660 Other assets (c) — — 10,608 10,608 (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 and related losses 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 six months ended June 30, 2020 and 2019 : Net gains/(losses) Net gains/(losses) (Dollars in thousands) 2020 2019 2020 2019 Loans held-for-sale—SBAs and USDA $ (1,247 ) $ (1,074 ) $ (2,208 ) $ (1,293 ) Loans held-for-sale—first mortgages (4 ) 10 1 25 Loans, net of unearned income (a) (1,274 ) (4,639 ) (6,113 ) (4,436 ) OREO (b) (142 ) (9 ) (169 ) 26 Other assets (c) (426 ) (267 ) (772 ) (942 ) $ (3,093 ) $ (5,979 ) $ (9,261 ) $ (6,620 ) (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 June 30, 2020 and December 31, 2019 : (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 $ 25,446 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 14% - 15% 15% Loans held-for-sale - residential real estate 13,767 Discounted cash flow Prepayment speeds - First mortgage 5% - 15% 5.8% Foreclosure losses 50% - 65% 63% Loss severity trends - First mortgage 4% - 21% of UPB 13.6% Loans held-for-sale- unguaranteed interest in SBA loans 774 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 8% 8% Derivative liabilities, other 18,645 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 9 - 33 months 24 months Loans, net of unearned 66,062 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) 13,177 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 9,835 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 $ 19,136 Discounted cash flow Constant prepayment rate 12% 12% Bond equivalent yield 16% - 17% 16% Loans held-for-sale - residential real estate 14,549 Discounted cash flow Prepayment speeds - First mortgage 3% - 14% 4.1% Prepayment speeds - HELOC 0% - 12% 7.6% Foreclosure losses 50% - 66% 64% Loss severity trends - First mortgage 3% - 24% of UPB 14.3% Loss severity trends - HELOC 0% - 72% of UPB 50% Loans held-for-sale- unguaranteed interest in SBA loans 929 Discounted cash flow Constant prepayment rate 8% - 12% 10% Bond equivalent yield 9% 9% Derivative liabilities, other 22,795 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 15 - 39 months 29 months Loans, net of unearned 42,208 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) 15,660 Appraisals from comparable properties Adjustment for value changes since appraisal 0% - 10% of appraisal NM Other assets (c) 10,608 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. June 30, 2020 (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 $ 13,263 $ 17,857 $ (4,594 ) Nonaccrual loans 2,740 5,774 (3,034 ) Loans 90 days or more past due and still accruing 186 322 (136 ) December 31, 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 $ 14,033 $ 19,278 $ (5,245 ) Nonaccrual loans 3,532 6,646 (3,114 ) Loans 90 days or more past due and still accruing 163 268 (105 )
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 Six Months Ended (Dollars in thousands) 2020 2019 2020 2019 Changes in fair value included in net income: Mortgage banking noninterest income Loans held-for-sale $ 422 $ 321 $ 751 $ 816
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 June 30, 2020 : June 30, 2020 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 $ 21,075,171 $ — $ — $ 21,216,054 $ 21,216,054 Commercial real estate 4,756,056 — — 4,768,706 4,768,706 Consumer: Consumer real estate (a) 5,908,636 — — 6,085,159 6,085,159 Credit card & other 431,193 — — 438,644 438,644 Total loans, net of unearned income and allowance for loan losses 32,171,056 — — 32,508,563 32,508,563 Short-term financial assets: Interest-bearing cash 3,135,844 3,135,844 — — 3,135,844 Federal funds sold 113,000 — 113,000 — 113,000 Securities purchased under agreements to resell 302,267 — 302,267 — 302,267 Total short-term financial assets 3,551,111 3,135,844 415,267 — 3,551,111 Trading securities (b) 1,116,450 — 1,115,822 628 1,116,450 Loans held-for-sale Mortgage loans (elected fair value) (b) 13,263 — — 13,263 13,263 USDA & SBA loans- LOCOM 644,219 — 648,383 792 649,175 Other consumer loans- LOCOM 4,758 — 4,758 — 4,758 Mortgage loans- LOCOM 83,415 — — 83,415 83,415 Total loans held-for-sale 745,655 — 653,141 97,470 750,611 Securities available-for-sale (b) 5,476,156 — 5,450,710 25,446 5,476,156 Securities held-to-maturity 10,000 — — 9,881 9,881 Derivative assets (b) 599,704 35,408 564,126 170 599,704 Other assets: Tax credit investments 257,547 — — 257,705 257,705 Deferred compensation mutual funds 48,572 48,572 — — 48,572 Equity, mutual funds, and other (c) 343,825 22,692 — 321,133 343,825 Total other assets 649,944 71,264 — 578,838 650,102 Total assets $ 44,320,076 $ 3,242,516 $ 8,199,066 $ 33,220,996 $ 44,662,578 Liabilities: Defined maturity deposits $ 2,655,702 $ — $ 2,695,759 $ — $ 2,695,759 Trading liabilities (b) 232,742 — 232,742 — 232,742 Short-term financial liabilities: Federal funds purchased 778,529 — 778,529 — 778,529 Securities sold under agreements to repurchase 1,482,585 — 1,482,585 — 1,482,585 Other short-term borrowings 130,583 — 130,583 — 130,583 Total short-term financial liabilities 2,391,697 — 2,391,697 — 2,391,697 Term borrowings: Real estate investment trust-preferred 46,270 — — 47,000 47,000 Secured borrowings 15,370 — — 15,370 15,370 Junior subordinated debentures 145,262 — — 138,950 138,950 Other long term borrowings 1,825,574 — 1,877,080 — 1,877,080 Total term borrowings 2,032,476 — 1,877,080 201,320 2,078,400 Derivative liabilities (b) 94,389 30,483 45,091 18,815 94,389 Total liabilities $ 7,407,006 $ 30,483 $ 7,242,369 $ 220,135 $ 7,492,987 (a) In first quarter 2020, the Permanent Mortgage portfolio was combined into Consumer Real Estate portfolio, all prior periods were revised for comparability. (b) Classes are detailed in the recurring and nonrecurring measurement tables. (c) Level 1 primarily consists of mutual funds with readily determinable fair values. Level 3 includes restricted investments in FHLB-Cincinnati stock of $190.4 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, 2019 : December 31, 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 $ 19,928,605 $ — $ — $ 20,096,397 $ 20,096,397 Commercial real estate 4,300,905 — — 4,300,489 4,300,489 Consumer: Consumer real estate 6,148,696 — — 6,334,187 6,334,187 Credit card & other 482,598 — — 487,079 487,079 Total loans, net of unearned income and allowance for loan losses 30,860,804 — — 31,218,152 31,218,152 Short-term financial assets: Interest-bearing cash 482,405 482,405 — — 482,405 Federal funds sold 46,536 — 46,536 — 46,536 Securities purchased under agreements to resell 586,629 — 586,629 — 586,629 Total short-term financial assets 1,115,570 482,405 633,165 — 1,115,570 Trading securities (a) 1,346,207 — 1,345,266 941 1,346,207 Loans held-for-sale Mortgage loans (elected fair value) (a) 14,033 — — 14,033 14,033 USDA & SBA loans- LOCOM 493,525 — 495,323 947 496,270 Other consumer loans- LOCOM 5,197 — 5,197 — 5,197 Mortgage loans- LOCOM 81,035 — — 81,035 81,035 Total loans held-for-sale 593,790 — 500,520 96,015 596,535 Securities available-for-sale (a) 4,445,403 — 4,426,267 19,136 4,445,403 Securities held-to-maturity 10,000 — — 10,001 10,001 Derivative assets (a) 183,115 20,640 162,475 — 183,115 Other assets: Tax credit investments 247,075 — — 244,755 244,755 Deferred compensation assets 46,815 46,815 — — 46,815 Equity, mutual funds, and other (b) 229,352 22,643 — 206,709 229,352 Total other assets 523,242 69,458 — 451,464 520,922 Total assets $ 39,078,131 $ 572,503 $ 7,067,693 $ 31,795,709 $ 39,435,905 Liabilities: Deposits: Defined maturity $ 3,618,337 $ — $ 3,631,090 $ — $ 3,631,090 Trading liabilities (a) 505,581 — 505,581 — 505,581 Short-term financial liabilities: Federal funds purchased 548,344 — 548,344 — 548,344 Securities sold under agreements to repurchase 716,925 — 716,925 — 716,925 Other short-term borrowings 2,253,045 — 2,253,045 — 2,253,045 Total short-term financial liabilities 3,518,314 — 3,518,314 — 3,518,314 Term borrowings: Real estate investment trust-preferred 46,236 — — 47,000 47,000 Secured Borrowings 21,975 — — 21,975 21,975 Junior subordinated debentures 144,593 — — 142,375 142,375 Other long term borrowings 578,564 — 574,287 — 574,287 Total term borrowings 791,368 — 574,287 211,350 785,637 Derivative liabilities (a) 67,480 19,807 24,878 22,795 67,480 Total liabilities $ 8,501,080 $ 19,807 $ 8,254,150 $ 234,145 $ 8,508,102 Certain previously reported amounts have been reclassified to agree with current presentation. (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 $76.0 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 June 30, 2020 and December 31, 2019 : Contractual Amount Fair Value (Dollars in thousands) June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 Unfunded Commitments: Loan commitments $ 12,945,839 $ 12,355,220 $ 2,492 $ 3,656 Standby and other commitments 469,567 459,268 6,112 5,513

Restructuring, Repositioning,_2

Restructuring, Repositioning, and Efficiency (Tables)	6 Months Ended
	Jun. 30, 2020
Restructuring and Related Activities [Abstract]
Restructuring Expense Recognized	Total expense recognized for the three and six months ended June 30, 2020 and 2019 is presented in the table below: Three Months Ended Six Months Ended Dollars in thousands 2020 2019 2020 2019 Employee compensation, incentives and benefits $ 32 $ 2,557 $ 89 $ 9,062 Professional fees 7 4,242 14 8,537 Occupancy — 72 2 889 Other 1 11,797 (102 ) 12,332 Total restructuring, repositioning, and efficiency charges $ 40 $ 18,668 $ 3 $ 30,820

Financial Information - Narrati

Financial Information - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Product Information [Line Items]
Performance obligation, description of timing	one year or less
Non-Interest income
Product Information [Line Items]
Accounts receivable	$ 8.9

Financial Information - ASU 201

Financial Information - ASU 2016-13 (Details) - USD ($) $ in Thousands	Jun. 30, 2020		Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income	$ 32,708,937	[1]			$ 31,061,111	[1]	$ 29,712,810
Allowance for loan losses	537,881		$ 444,490		200,307		$ 192,749	$ 184,911	$ 180,424
Other assets	2,209,235				2,046,338
Other liabilities	900,884				873,079
Undivided profits	1,671,629				1,798,442
Total liabilities and equity	$ 48,644,659				$ 43,310,900
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans, net of unearned income				$ 2,980
Allowance for loan losses				(106,394)
Other assets (deferred taxes)				31,330
Other assets				(72,084)
Other liabilities				23,973
Undivided profits				(96,057)
Total liabilities and equity				$ (72,084)
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 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	Jul. 17, 2020USD ($)branch	Jul. 01, 2020USD ($)officestateshares	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Apr. 30, 2019USD ($)
Business Acquisition [Line Items]
Assets			$ 48,644,659	$ 43,310,900
Total loans, net of unearned income and allowance for loan losses			32,171,056	30,860,804
Securities available-for-sale			5,476,156	4,445,403
Deposits			$ 37,759,351	$ 32,429,535
Subprime Consumer Loans | Discontinued Operations, Held-for-sale
Business Acquisition [Line Items]
Loans disposed of					$ 25,000
Subsequent Event | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	30
Loans	$ 423,700
Deposits	$ 2,200,000
Deposits premium percent	3.40%
Subsequent Event | IBERIABANK (IBKC)
Business Acquisition [Line Items]
Equity interest issued, number of shares (in shares) | shares		242,000,000
Equity interest issued, value assigned		$ 2,500,000
Number of offices | office		319
Number of states | state		12
Assets		$ 34,700,000
Total loans, net of unearned income and allowance for loan losses		26,100,000
Securities available-for-sale		3,500,000
Deposits		$ 28,300,000
Subsequent Event | NORTH CAROLINA | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	20
Subsequent Event | VIRGINIA | SunTrust Banks, Inc. Branches
Business Acquisition [Line Items]
Number of bank branches | branch	8
Subsequent Event | GEORGIA | 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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Merger and integration expense	$ 4,865	$ 8,647	$ 9,037	$ 14,307
Professional fees
Business Acquisition [Line Items]
Merger and integration expense	1,327	4,478	2,126	6,345
Employee compensation, incentives and benefits
Business Acquisition [Line Items]
Merger and integration expense	87	1,472	483	2,989
Contract employment and outsourcing
Business Acquisition [Line Items]
Merger and integration expense	420	17	726	17
Occupancy
Business Acquisition [Line Items]
Merger and integration expense	(82)	1,505	(107)	1,623
Miscellaneous expense
Business Acquisition [Line Items]
Merger and integration expense	503	79	1,325	1,148
All other expense
Business Acquisition [Line Items]
Merger and integration expense	2,610	$ 1,096	4,484	$ 2,185
IBERIABANK (IBKC)
Business Acquisition [Line Items]
Merger and integration expense	9,456		11,061
IBERIABANK (IBKC) | Professional fees
Business Acquisition [Line Items]
Merger and integration expense	3,748		4,410
IBERIABANK (IBKC) | Employee compensation, incentives and benefits
Business Acquisition [Line Items]
Merger and integration expense	4,705		5,394
IBERIABANK (IBKC) | Miscellaneous expense
Business Acquisition [Line Items]
Merger and integration expense	$ 1,003		$ 1,257

Investment Securities - Schedul

Investment Securities - Schedule Of FHN's Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	$ 5,293,746
Securities available-for-sale	5,476,156	$ 4,445,403
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	1
Securities held to maturity, gross unrealized losses	(119)	0
Securities held to maturity, fair value	9,881	10,001
Securities pledged as collateral	4,700,000	3,800,000
U.S. treasuries
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	999,974	100
Securities available for sale, gross unrealized gains	5	0
Securities available for sale, gross unrealized losses	(4)	0
Securities available-for-sale	999,975	100
Government agency issued MBS
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	2,383,956	2,316,381
Securities available for sale, gross unrealized gains	103,506	34,692
Securities available for sale, gross unrealized losses	(80)	(2,556)
Securities available-for-sale	2,487,382	2,348,517
Government agency issued CMO
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	1,383,703	1,667,773
Securities available for sale, gross unrealized gains	31,570	9,916
Securities available for sale, gross unrealized losses	(8)	(7,197)
Securities available-for-sale	1,415,265	1,670,492
Other U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	403,008	303,463
Securities available for sale, gross unrealized gains	14,284	3,750
Securities available for sale, gross unrealized losses	0	(1,121)
Securities available-for-sale	417,292	306,092
Corporates and other debt
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	39,950	40,054
Securities available for sale, gross unrealized gains	463	486
Securities available for sale, gross unrealized losses	0	0
Securities available-for-sale	40,413	40,540
States and municipalities
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	83,155	57,232
Securities available for sale, gross unrealized gains	7,228	3,324
Securities available for sale, gross unrealized losses	0	(30)
Securities available-for-sale	90,383	60,526
Securities available-for-sale, excluding interest only strip:
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, amortized cost	5,293,746	4,385,003
Securities available for sale, gross unrealized gains	157,056	52,168
Securities available for sale, gross unrealized losses	(92)	(10,904)
Securities available-for-sale	5,450,710	4,426,267
Interest- only strips- AFS
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	25,446	19,136
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Total	10,000	10,000
Securities held to maturity, gross unrealized gains	0	1
Securities held to maturity, gross unrealized losses	(119)	0
Securities held to maturity, fair value	$ 9,881	$ 10,001

Investment Securities - Sched_2

Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
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	9,881
After 10 years	0
Subtotal	9,881
Government agency issued MBS and CMO	0
Securities held to maturity, fair value	9,881	10,001
Available-for-Sale, Amortized Cost
Within 1 year	1,106,238
After 1 year; within 5 years	137,571
After 5 years; within 10 years	3,573
After 10 years	278,705
Subtotal	1,526,087
Government agency issued MBS and CMO	3,767,659
Securities available for sale, amortized cost	5,293,746
Available-for-Sale, Fair Value
Within 1 year	1,108,000
After 1 year; within 5 years	142,491
After 5 years; within 10 years	9,623
After 10 years	313,395
Subtotal	1,573,509
Government agency issued MBS and CMO	3,902,647
Securities available-for-sale	$ 5,476,156	$ 4,445,403

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Marketable Securities [Abstract]
Gross gains on sales of securities	$ 0	$ 0	$ 0	$ 0
Gross (losses) on sales of securities	0	(267)	0	(267)
Net gain/(loss) on sales of securities	$ 0	(267)	$ 0	(267)
Cash proceeds		$ 171,400		$ 171,400

Investment Securities - Sched_4

Investment Securities - Schedule Of Investments Within The Available For Sale Portfolio That Had Unrealized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Less than 12 months	$ 556,675	$ 655,820
12 months or longer	0	553,979
Total fair value	556,675	1,209,799
Unrealized Losses
Less than 12 months	(92)	(3,616)
12 months or longer	0	(7,288)
Total unrealized losses	(92)	(10,904)
U.S. treasuries
Schedule of Investments [Line Items]
Less than 12 months	499,895	0
12 months or longer	0	100
Total fair value	499,895	100
Unrealized Losses
Less than 12 months	(4)	0
12 months or longer	0	0
Total unrealized losses	(4)	0
Government agency issued MBS
Schedule of Investments [Line Items]
Less than 12 months	40,798	174,983
12 months or longer	0	192,755
Total fair value	40,798	367,738
Unrealized Losses
Less than 12 months	(80)	(495)
12 months or longer	0	(2,061)
Total unrealized losses	(80)	(2,556)
Government agency issued CMO
Schedule of Investments [Line Items]
Less than 12 months	15,982	378,815
12 months or longer	0	361,124
Total fair value	15,982	739,939
Unrealized Losses
Less than 12 months	(8)	(1,970)
12 months or longer	0	(5,227)
Total unrealized losses	$ (8)	(7,197)
Other U.S. government agencies
Schedule of Investments [Line Items]
Less than 12 months		98,471
12 months or longer		0
Total fair value		98,471
Unrealized Losses
Less than 12 months		(1,121)
12 months or longer		0
Total unrealized losses		(1,121)
States and municipalities
Schedule of Investments [Line Items]
Less than 12 months		3,551
12 months or longer		0
Total fair value		3,551
Unrealized Losses
Less than 12 months		(30)
12 months or longer		0
Total unrealized losses		$ (30)

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Marketable Securities [Abstract]
Debt securities, AFS, accrued interest receivable	$ 12.4		$ 12.4
Carrying amount of equity investments without a readily determinable fair value	24.7		24.7		$ 25.6
Unrealized gain (loss) for equity investments with readily determinable fair values	$ 4.8	$ 1.2	$ (0.9)	$ 4.6

Loans - Schedule Of Loans By Po

Loans - Schedule Of Loans By Portfolio Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2020		Mar. 31, 2020	Dec. 31, 2019		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 32,708,937	[1]		$ 31,061,111	[1]	$ 29,712,810
Allowance for loan losses	537,881		$ 444,490	200,307		192,749	$ 184,911	$ 180,424
Total net loans	32,171,056			30,860,804
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses				158,598
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	21,393,893			20,051,091		19,054,269
Allowance for loan losses	318,722		254,516	122,486		116,096	103,713	98,947
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,813,341			4,337,017		3,861,031
Allowance for loan losses	57,285		47,625	36,112		32,953	34,382	31,311
Consumer | Consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,052,393			6,177,139		6,303,134
Allowance for loan losses	143,757		123,022	28,443		31,532	34,154	37,439
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	449,310			495,864		494,376
Allowance for loan losses	$ 18,117		$ 19,327	$ 13,266		$ 12,168	$ 12,662	$ 12,727
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Asset Quality Indicator

Loans - Asset Quality Indicators (Details)	Jun. 30, 2020USD ($)		Dec. 31, 2019USD ($)	[1]	Jun. 30, 2019USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 32,708,937,000	[1]	$ 31,061,111,000		$ 29,712,810,000
Commercial | PD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lowest expected default probability	1
Commercial | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Commercial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	14
Commercial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	15
Commercial | Minimum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Commercial | Minimum | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Commercial | Minimum | Loan Reassessed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 1,000,000
Commercial | Minimum | PD Grade 13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 500,000
Commercial | Minimum | LGD Grade 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Commercial | Maximum | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Commercial | Maximum | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
Commercial | Maximum | LGD Grade 12
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Balances Of Commercial

Loans - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020		Dec. 31, 2019		Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment	$ 32,419,020				$ 29,343,285
Individually evaluated for impairment	289,917				300,726
Total loans, net of unearned income	32,708,937	[1]	$ 31,061,111	[1]	29,712,810
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment			24,273,207
Individually evaluated for impairment			84,001
C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	4,203,052
2020, Collectively evaluated for impairment	4,181,906
2020, Individually evaluated for impairment	21,146
2019	4,009,508
2019, Collectively evaluated for impairment	4,002,895
2019, Individually evaluated for impairment	6,613
2018	1,781,274
2018, Collectively evaluated for impairment	1,768,820
2018, Individually evaluated for impairment	12,454
2017	1,329,918
2017, Collectively evaluated for impairment	1,307,923
2017, Individually evaluated for impairment	21,995
2016	1,022,537
2016, Collectively evaluated for impairment	1,020,628
2016, Individually evaluated for impairment	1,909
Prior to 2016	1,304,683
Prior to 2016, Collectively evaluated for impairment	1,282,569
Prior to 2016, Individually evaluated for impairment	22,114
Non-revolving loans	4,020,591
Non-revolving, collectively evaluated for impairment	4,020,591
Non-revolving, individually evaluated for impairment	0
Revolving Loans	3,612,908
Revolving, collectively evaluated for impairment	3,562,589
Revolving, individually evaluated for impairment	50,319
Revolving Loans converted to term loans (c)	109,422
Revolving loans converted to term loans, collectively evaluated for impairment	105,446
Revolving loans converted to term loan, Individually evaluated for impairment	3,976
Collectively evaluated for impairment	21,253,367				18,904,621
Individually evaluated for impairment	140,526				115,808
Total loans, net of unearned income	21,393,893		20,051,091		19,054,269
Revolving loan converted to term loan during period	22,700
C&I | C&I | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment			15,313,558
Individually evaluated for impairment			82,438
Total loans, net of unearned income	17,164,125		15,395,996
C&I | Loans to Mortgage Companies | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment			4,410,883
Individually evaluated for impairment			0
Total loans, net of unearned income	4,020,591		4,410,883
C&I | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	209,200
Collectively evaluated for impairment			218,287
Individually evaluated for impairment			0
Total loans, net of unearned income	209,177		218,287
C&I | PD Grade 1 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	2,078,712
2019	99,978
2018	121,167
2017	75,521
2016	106,700
Prior to 2016	108,574
Non-revolving loans	0
Revolving Loans	83,309
Revolving Loans converted to term loans (c)	56
Total loans, net of unearned income	2,674,017
C&I | PD Grade 2 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	56,810
2019	223,191
2018	100,816
2017	79,318
2016	168,838
Prior to 2016	90,484
Non-revolving loans	0
Revolving Loans	95,035
Revolving Loans converted to term loans (c)	126
Total loans, net of unearned income	814,618
C&I | PD Grade 3 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	42,983
2019	153,671
2018	49,176
2017	89,945
2016	30,381
Prior to 2016	97,338
Non-revolving loans	741,382
Revolving Loans	125,470
Revolving Loans converted to term loans (c)	3,490
Total loans, net of unearned income	1,333,836
C&I | PD Grade 3 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	3,300
C&I | PD Grade 4 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	261,626
2019	335,130
2018	145,047
2017	122,185
2016	129,859
Prior to 2016	142,129
Non-revolving loans	685,876
Revolving Loans	259,379
Revolving Loans converted to term loans (c)	10,653
Total loans, net of unearned income	2,091,884
C&I | PD Grade 4 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	60,900
C&I | PD Grade 5 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	304,710
2019	496,565
2018	220,632
2017	145,650
2016	96,325
Prior to 2016	163,676
Non-revolving loans	700,944
Revolving Loans	384,874
Revolving Loans converted to term loans (c)	12,654
Total loans, net of unearned income	2,526,030
C&I | PD Grade 5 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	47,900
C&I | PD Grade 6 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	360,649
2019	714,704
2018	246,607
2017	195,634
2016	53,597
Prior to 2016	155,755
Non-revolving loans	1,198,775
Revolving Loans	667,570
Revolving Loans converted to term loans (c)	558
Total loans, net of unearned income	3,593,849
C&I | PD Grade 6 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	38,600
C&I | PD Grade 7 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	309,088
2019	723,728
2018	339,953
2017	145,385
2016	100,069
Prior to 2016	171,016
Non-revolving loans	552,192
Revolving Loans	598,772
Revolving Loans converted to term loans (c)	48,291
Total loans, net of unearned income	2,988,494
C&I | PD Grade 7 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	13,400
C&I | PD Grade 8 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	343,391
2019	593,106
2018	194,030
2017	175,289
2016	36,044
Prior to 2016	96,204
Non-revolving loans	93,900
Revolving Loans	379,261
Revolving Loans converted to term loans (c)	7,110
Total loans, net of unearned income	1,918,335
C&I | PD Grade 9 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	171,524
2019	293,768
2018	89,519
2017	66,927
2016	65,539
Prior to 2016	75,753
Non-revolving loans	25,198
Revolving Loans	283,883
Revolving Loans converted to term loans (c)	10,670
Total loans, net of unearned income	1,082,781
C&I | PD Grade 9 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	20,700
C&I | PD Grade 10 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	96,735
2019	171,901
2018	85,644
2017	60,721
2016	50,429
Prior to 2016	54,729
Non-revolving loans	15,325
Revolving Loans	227,301
Revolving Loans converted to term loans (c)	5,082
Total loans, net of unearned income	767,867
C&I | PD Grade 10 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	18,600
C&I | PD Grade 11 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	53,872
2019	82,677
2018	74,977
2017	58,964
2016	70,190
Prior to 2016	38,059
Non-revolving loans	0
Revolving Loans	148,656
Revolving Loans converted to term loans (c)	3,233
Total loans, net of unearned income	530,628
C&I | PD Grade 12 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	51,861
2019	33,083
2018	52,013
2017	47,162
2016	20,214
Prior to 2016	29,674
Non-revolving loans	6,999
Revolving Loans	95,943
Revolving Loans converted to term loans (c)	477
Total loans, net of unearned income	337,426
C&I | PD Grade 13 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	39,047
2019	57,585
2018	10,231
2017	15,916
2016	51,816
Prior to 2016	45,984
Non-revolving loans	0
Revolving Loans	114,971
Revolving Loans converted to term loans (c)	498
Total loans, net of unearned income	336,048
C&I | PD Grade 13 | TRUPS | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prior to 2016	5,800
C&I | PD Grade 14 15 16 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	10,898
2019	23,808
2018	39,008
2017	29,306
2016	40,627
Prior to 2016	13,194
Non-revolving loans	0
Revolving Loans	98,165
Revolving Loans converted to term loans (c)	2,548
Total loans, net of unearned income	257,554
Commercial real estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collectively evaluated for impairment	4,813,181				3,852,027
Individually evaluated for impairment	160				1,777
Total loans, net of unearned income	4,813,341		4,337,017		$ 3,861,031
Commercial real estate | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	1,061,575
2020, Collectively evaluated for impairment	1,061,575
2020, Individually evaluated for impairment	0
2019	1,510,795
2019, Collectively evaluated for impairment	1,510,795
2019, Individually evaluated for impairment	0
2018	659,682
2018, Collectively evaluated for impairment	659,682
2018, Individually evaluated for impairment	0
2017	571,891
2017, Collectively evaluated for impairment	571,891
2017, Individually evaluated for impairment	0
2016	348,257
2016, Collectively evaluated for impairment	348,257
2016, Individually evaluated for impairment	0
Prior to 2016	389,834
Prior to 2016, Collectively evaluated for impairment	389,674
Prior to 2016, Individually evaluated for impairment	160
Revolving Loans	209,206
Revolving, collectively evaluated for impairment	209,206
Revolving, individually evaluated for impairment	0
Revolving Loans converted to term loans (c)	17,483
Revolving loans converted to term loans, collectively evaluated for impairment	17,483
Revolving loans converted to term loan, Individually evaluated for impairment	0
Collectively evaluated for impairment	4,768,563		4,242,519
Individually evaluated for impairment	160		1,563
Total loans, net of unearned income	4,768,723		4,244,082
Commercial real estate | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	21,652
2020, Collectively evaluated for impairment	21,652
2020, Individually evaluated for impairment	0
2019	13,407
2019, Collectively evaluated for impairment	13,407
2019, Individually evaluated for impairment	0
2018	4,459
2018, Collectively evaluated for impairment	4,459
2018, Individually evaluated for impairment	0
2017	2,747
2017, Collectively evaluated for impairment	2,747
2017, Individually evaluated for impairment	0
2016	602
2016, Collectively evaluated for impairment	602
2016, Individually evaluated for impairment	0
Prior to 2016	1,638
Prior to 2016, Collectively evaluated for impairment	1,638
Prior to 2016, Individually evaluated for impairment	0
Revolving Loans	113
Revolving, collectively evaluated for impairment	113
Revolving, individually evaluated for impairment	0
Revolving Loans converted to term loans (c)	0
Revolving loans converted to term loans, collectively evaluated for impairment	0
Revolving loans converted to term loan, Individually evaluated for impairment	0
Collectively evaluated for impairment	44,618		87,960
Individually evaluated for impairment	0		0
Total loans, net of unearned income	44,618		$ 87,960
Commercial real estate | PD Grade 1 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	21,886
2019	0
2018	392
2017	106
2016	158
Prior to 2016	1,190
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	23,732
Commercial real estate | PD Grade 1 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	20
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	20
Commercial real estate | PD Grade 2 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	7,798
2019	30,919
2018	405
2017	216
2016	617
Prior to 2016	3,145
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	43,100
Commercial real estate | PD Grade 2 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	0
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	0
Commercial real estate | PD Grade 3 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	97,338
2019	212,413
2018	75,483
2017	34,863
2016	42,468
Prior to 2016	25,511
Revolving Loans	78,004
Revolving Loans converted to term loans (c)	181
Total loans, net of unearned income	566,261
Commercial real estate | PD Grade 3 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	0
2019	151
2018	268
2017	482
2016	0
Prior to 2016	95
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	996
Commercial real estate | PD Grade 4 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	90,915
2019	292,657
2018	100,058
2017	130,549
2016	94,836
Prior to 2016	45,975
Revolving Loans	839
Revolving Loans converted to term loans (c)	238
Total loans, net of unearned income	756,067
Commercial real estate | PD Grade 4 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	0
2019	722
2018	0
2017	0
2016	0
Prior to 2016	106
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	828
Commercial real estate | PD Grade 5 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	320,904
2019	279,229
2018	138,520
2017	152,573
2016	112,018
Prior to 2016	45,048
Revolving Loans	37,306
Revolving Loans converted to term loans (c)	6,224
Total loans, net of unearned income	1,091,822
Commercial real estate | PD Grade 5 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	93
2019	0
2018	0
2017	0
2016	76
Prior to 2016	12
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	181
Commercial real estate | PD Grade 6 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	264,892
2019	215,714
2018	125,075
2017	107,697
2016	33,716
Prior to 2016	119,742
Revolving Loans	37,800
Revolving Loans converted to term loans (c)	7,930
Total loans, net of unearned income	912,566
Commercial real estate | PD Grade 6 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	14,512
2019	106
2018	43
2017	333
2016	30
Prior to 2016	234
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	15,258
Commercial real estate | PD Grade 7 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	164,896
2019	293,784
2018	121,601
2017	64,796
2016	20,076
Prior to 2016	24,648
Revolving Loans	40,187
Revolving Loans converted to term loans (c)	1,224
Total loans, net of unearned income	731,212
Commercial real estate | PD Grade 7 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	348
2019	470
2018	2,904
2017	1,776
2016	0
Prior to 2016	241
Revolving Loans	13
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	5,752
Commercial real estate | PD Grade 8 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	23,028
2019	93,700
2018	55,579
2017	11,850
2016	28,382
Prior to 2016	50,403
Revolving Loans	6,845
Revolving Loans converted to term loans (c)	128
Total loans, net of unearned income	269,915
Commercial real estate | PD Grade 8 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	467
2019	24
2018	443
2017	0
2016	6
Prior to 2016	89
Revolving Loans	100
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	1,129
Commercial real estate | PD Grade 9 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	35,357
2019	36,942
2018	25,157
2017	22,936
2016	2,219
Prior to 2016	19,126
Revolving Loans	280
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	142,017
Commercial real estate | PD Grade 9 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	325
2019	520
2018	262
2017	0
2016	490
Prior to 2016	76
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	1,673
Commercial real estate | PD Grade 10 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	23,623
2019	8,323
2018	7,323
2017	2,803
2016	9,125
Prior to 2016	17,320
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	68,517
Commercial real estate | PD Grade 10 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	179
2019	960
2018	277
2017	0
2016	0
Prior to 2016	6
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	1,422
Commercial real estate | PD Grade 11 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	6,936
2019	21,414
2018	6,890
2017	7,347
2016	3,862
Prior to 2016	19,638
Revolving Loans	0
Revolving Loans converted to term loans (c)	1,330
Total loans, net of unearned income	67,417
Commercial real estate | PD Grade 11 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	4,093
2019	8,660
2018	218
2017	156
2016	0
Prior to 2016	50
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	13,177
Commercial real estate | PD Grade 12 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	2,962
2019	14,437
2018	2,383
2017	905
2016	652
Prior to 2016	13,476
Revolving Loans	64
Revolving Loans converted to term loans (c)	228
Total loans, net of unearned income	35,107
Commercial real estate | PD Grade 12 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	154
2019	1,530
2018	44
2017	0
2016	0
Prior to 2016	538
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	2,266
Commercial real estate | PD Grade 13 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	525
2019	455
2018	771
2017	16,185
2016	0
Prior to 2016	570
Revolving Loans	328
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	18,834
Commercial real estate | PD Grade 13 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	1,310
2019	0
2018	0
2017	0
2016	0
Prior to 2016	132
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	1,442
Commercial real estate | PD Grade 14 15 16 | Income CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	515
2019	10,808
2018	45
2017	19,065
2016	128
Prior to 2016	3,882
Revolving Loans	7,553
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	41,996
Commercial real estate | PD Grade 14 15 16 | Residential CRE | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	171
2019	264
2018	0
2017	0
2016	0
Prior to 2016	39
Revolving Loans	0
Revolving Loans converted to term loans (c)	0
Total loans, net of unearned income	$ 474
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Balances Of Commercia_2

Loans - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade and Sub Class (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 537,881	$ 444,490	$ 200,307	$ 192,749	$ 184,911	$ 180,424
Collectively evaluated for impairment	32,419,020			29,343,285
Allowance - collectively evaluated for impairment	507,677			159,579
Individually evaluated for impairment	289,917			300,726
Allowance - individually evaluated for impairment	30,204			31,181
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 24,388,108
Loan balances percentage of total			100.00%
Allowance for loan losses			$ 158,598
Collectively evaluated for impairment			$ 24,273,207
Percent loan collectively evaluated for impairment			100.00%
Allowance - collectively evaluated for impairment			$ 151,554
Individually evaluated for impairment			$ 84,001
Percent loan individually evaluated for impairment			0.00%
Allowance - individually evaluated for impairment			$ 6,196
Purchased credit-impaired loans			$ 30,900
Percent loan purchased credit impaired			0.00%
Allowance - purchased credit-impaired loans			$ 848
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	318,722	254,516	122,486	116,096	103,713	98,947
Collectively evaluated for impairment	21,253,367			18,904,621
Allowance - collectively evaluated for impairment	302,145			106,758
Individually evaluated for impairment	140,526			115,808
Allowance - individually evaluated for impairment	16,577			8,484
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	57,285	$ 47,625	36,112	32,953	$ 34,382	$ 31,311
Collectively evaluated for impairment	4,813,181			3,852,027
Allowance - collectively evaluated for impairment	57,285			32,953
Individually evaluated for impairment	160			1,777
Allowance - individually evaluated for impairment	0			$ 0
C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			15,421,921
Collectively evaluated for impairment			15,313,558
Individually evaluated for impairment			82,438
Purchased credit-impaired loans			25,925
Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			4,410,883
Collectively evaluated for impairment			4,410,883
Individually evaluated for impairment			0
Purchased credit-impaired loans			0
TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			218,287
Allowance for loan losses	18,400		19,100
Collectively evaluated for impairment			218,287
Individually evaluated for impairment			0
Purchased credit-impaired loans			0
Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			4,248,237
Collectively evaluated for impairment	4,768,563		4,242,519
Individually evaluated for impairment	160		1,563
Purchased credit-impaired loans			4,155
Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			88,780
Collectively evaluated for impairment	44,618		87,960
Individually evaluated for impairment	$ 0		0
Purchased credit-impaired loans			820
PD Grade 1 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 697,888
Loan balances percentage of total			3.00%
Allowance for loan losses			$ 69
PD Grade 1 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			696,040
PD Grade 1 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 1 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 1 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,848
PD Grade 1 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 2 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 815,992
Loan balances percentage of total			4.00%
Allowance for loan losses			$ 165
PD Grade 2 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			767,048
PD Grade 2 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 2 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 2 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			48,906
PD Grade 2 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			38
PD Grade 3 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 2,098,520
Loan balances percentage of total			9.00%
Allowance for loan losses			$ 274
PD Grade 3 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			743,123
PD Grade 3 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			877,210
PD Grade 3 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			3,314
PD Grade 3 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			474,067
PD Grade 3 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			806
PD Grade 4 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 2,657,818
Loan balances percentage of total			11.00%
Allowance for loan losses			$ 738
PD Grade 4 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,237,772
PD Grade 4 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			692,971
PD Grade 4 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			46,375
PD Grade 4 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			680,223
PD Grade 4 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			477
PD Grade 5 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 3,725,003
Loan balances percentage of total			15.00%
Allowance for loan losses			$ 8,265
PD Grade 5 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,986,761
PD Grade 5 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			670,402
PD Grade 5 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			72,512
PD Grade 5 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			993,628
PD Grade 5 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,700
PD Grade 6 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 4,683,029
Loan balances percentage of total			19.00%
Allowance for loan losses			$ 12,054
PD Grade 6 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			2,511,290
PD Grade 6 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,410,387
PD Grade 6 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			27,263
PD Grade 6 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			717,062
PD Grade 6 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			17,027
PD Grade 7 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 3,908,971
Loan balances percentage of total			16.00%
Allowance for loan losses			$ 20,409
PD Grade 7 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			2,708,707
PD Grade 7 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			509,616
PD Grade 7 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			18,378
PD Grade 7 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			641,345
PD Grade 7 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			30,925
PD Grade 8 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 2,166,241
Loan balances percentage of total			9.00%
Allowance for loan losses			$ 22,514
PD Grade 8 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,743,364
PD Grade 8 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			136,771
PD Grade 8 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 8 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			269,407
PD Grade 8 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			16,699
PD Grade 9 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 1,393,514
Loan balances percentage of total			6.00%
Allowance for loan losses			$ 17,484
PD Grade 9 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,101,873
PD Grade 9 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			77,139
PD Grade 9 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			31,909
PD Grade 9 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			169,586
PD Grade 9 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			13,007
PD Grade 10 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 665,145
Loan balances percentage of total			3.00%
Allowance for loan losses			$ 10,197
PD Grade 10 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			563,635
PD Grade 10 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			21,229
PD Grade 10 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			18,536
PD Grade 10 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			59,592
PD Grade 10 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			2,153
PD Grade 11 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 579,124
Loan balances percentage of total			2.00%
Allowance for loan losses			$ 13,454
PD Grade 11 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			495,140
PD Grade 11 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 11 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 11 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			81,682
PD Grade 11 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			2,302
PD Grade 12 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 307,945
Loan balances percentage of total			1.00%
Allowance for loan losses			$ 8,471
PD Grade 12 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			262,906
PD Grade 12 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			15,158
PD Grade 12 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 12 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			28,807
PD Grade 12 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,074
PD Grade 13 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 266,915
Loan balances percentage of total			1.00%
Allowance for loan losses			$ 8,142
PD Grade 13 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			232,823
PD Grade 13 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 13 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 13 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			32,966
PD Grade 13 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			1,126
PD Grade 14 15 16 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 307,102
Loan balances percentage of total			1.00%
Allowance for loan losses			$ 29,318
PD Grade 14 15 16 | C&I | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			263,076
PD Grade 14 15 16 | Loans to Mortgage Companies | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 14 15 16 | TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			0
PD Grade 14 15 16 | Income CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			43,400
PD Grade 14 15 16 | Residential CRE | Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan balance			$ 626

Loans - Loans by FICO Score, Co

Loans - Loans by FICO Score, Consumer (Details) - USD ($) $ in Thousands	Jun. 30, 2020		Dec. 31, 2019		Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, net of unearned income	$ 32,708,937	[1]	$ 31,061,111	[1]	$ 29,712,810
Consumer | Consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	525,422
2019	789,595
2018	514,908
2017	539,006
2016	684,993
Prior to 2016	1,801,009
Revolving loans	884,134
Revolving loans converted to term loans (c)	313,326
Total loans, net of unearned income	6,052,393		6,177,139		6,303,134
Consumer | Consumer real estate | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	394,137
2019	576,132
2018	410,188
2017	420,822
2016	527,019
Prior to 2016	1,255,357
Revolving loans	626,844
Revolving loans converted to term loans (c)	135,436
Total loans, net of unearned income	4,345,935
Consumer | Consumer real estate | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	43,808
2019	67,904
2018	26,383
2017	37,259
2016	48,677
Prior to 2016	132,407
Revolving loans	76,045
Revolving loans converted to term loans (c)	28,913
Total loans, net of unearned income	461,396
Consumer | Consumer real estate | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	31,459
2019	66,155
2018	28,201
2017	26,164
2016	45,038
Prior to 2016	110,244
Revolving loans	54,941
Revolving loans converted to term loans (c)	29,613
Total loans, net of unearned income	391,815
Consumer | Consumer real estate | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	41,314
2019	51,096
2018	33,382
2017	32,745
2016	36,625
Prior to 2016	153,335
Revolving loans	76,593
Revolving loans converted to term loans (c)	44,067
Total loans, net of unearned income	469,157
Consumer | Consumer real estate | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	12,524
2019	17,140
2018	10,922
2017	12,789
2016	13,178
Prior to 2016	70,067
Revolving loans	24,185
Revolving loans converted to term loans (c)	29,940
Total loans, net of unearned income	190,745
Consumer | Consumer real estate | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	2,180
2019	11,168
2018	5,832
2017	9,227
2016	14,456
Prior to 2016	79,599
Revolving loans	25,526
Revolving loans converted to term loans (c)	45,357
Total loans, net of unearned income	193,345
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	26,822
2019	55,913
2018	32,571
2017	17,220
2016	10,011
Prior to 2016	26,315
Revolving loans	269,748
Revolving loans converted to term loans (c)	10,710
Total loans, net of unearned income	449,310		495,864		$ 494,376
Consumer | Other Consumer | FICO score 740 or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	16,160
2019	36,450
2018	21,476
2017	10,499
2016	3,988
Prior to 2016	14,774
Revolving loans	173,832
Revolving loans converted to term loans (c)	4,401
Total loans, net of unearned income	281,580
Consumer | Other Consumer | FICO score 720-739
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	3,238
2019	5,226
2018	2,784
2017	1,615
2016	747
Prior to 2016	1,844
Revolving loans	27,603
Revolving loans converted to term loans (c)	1,319
Total loans, net of unearned income	44,376
Consumer | Other Consumer | FICO score 700-719
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	2,168
2019	4,246
2018	2,542
2017	1,521
2016	706
Prior to 2016	1,980
Revolving loans	19,983
Revolving loans converted to term loans (c)	1,052
Total loans, net of unearned income	34,198
Consumer | Other Consumer | FICO score 660-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	3,654
2019	6,546
2018	3,149
2017	2,172
2016	1,423
Prior to 2016	2,737
Revolving loans	27,534
Revolving loans converted to term loans (c)	1,581
Total loans, net of unearned income	48,796
Consumer | Other Consumer | FICO score 620-659
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	1,269
2019	2,386
2018	1,576
2017	891
2016	836
Prior to 2016	1,813
Revolving loans	10,759
Revolving loans converted to term loans (c)	963
Total loans, net of unearned income	20,493
Consumer | Other Consumer | FICO score less than 620
Accounts, Notes, Loans and Financing Receivable [Line Items]
2020	333
2019	1,059
2018	1,044
2017	522
2016	2,311
Prior to 2016	3,167
Revolving loans	10,037
Revolving loans converted to term loans (c)	1,394
Total loans, net of unearned income	19,867
Unsecured Debt | Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revolving loans converted to term loans (c)	3,900
HELOC | Consumer | Consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revolving loans converted to term loans (c)	10,800
Total loans, net of unearned income	$ 1,197,460		$ 1,286,875
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Loans by FICO Score Per

Loans - Loans by FICO Score Percentage, Consumer (Details) - Accounts Receivable - Credit Concentration Risk	12 Months Ended
	Dec. 31, 2019
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	100.00%
R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	100.00%
FICO score 740 or greater | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	62.00%
FICO score 740 or greater | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	71.90%
FICO score 720-739 | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	8.60%
FICO score 720-739 | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	8.30%
FICO score 700-719 | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	7.60%
FICO score 700-719 | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	6.30%
FICO score 660-699 | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	10.80%
FICO score 660-699 | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	8.10%
FICO score 620-659 | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	4.70%
FICO score 620-659 | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	2.80%
FICO score less than 620 | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	6.30%
FICO score less than 620 | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	2.60%

Loans - Accruing And Non-Accrui

Loans - Accruing And Non-Accruing Loans By Class (Details) - USD ($) $ in Thousands	Jun. 30, 2020		Mar. 31, 2020	Dec. 31, 2019		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	$ 32,441,292			$ 30,841,035
Total Accruing	32,482,946			30,898,946
Current, Non-Accruing	153,299			100,382
Total Non-Accruing	225,991			162,165
Total loans, net of unearned income	32,708,937	[1]		31,061,111	[1]	$ 29,712,810
Allowance for loan losses	537,881		$ 444,490	200,307		192,749	$ 184,911	$ 180,424
30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	27,156			36,052
Past Due, Non-Accruing	4,128			20,217
90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	14,498			21,859
Past Due, Non-Accruing	68,564			41,566
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses				158,598
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	21,260,765			19,967,302
Total Accruing	21,266,548			19,976,779
Current, Non-Accruing	79,022			36,564
Total Non-Accruing	127,345			74,312
Total loans, net of unearned income	21,393,893			20,051,091		19,054,269
Allowance for loan losses	318,722		254,516	122,486		116,096	103,713	98,947
Commercial | Commercial, financial, and industrial | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	5,496			7,442
Past Due, Non-Accruing	254			14,385
Commercial | Commercial, financial, and industrial | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	287			2,035
Past Due, Non-Accruing	48,069			23,363
Commercial | Commercial, financial, and industrial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	17,031,822			15,314,292
Total Accruing	17,036,780			15,321,684
Current, Non-Accruing	79,022			36,564
Total Non-Accruing	127,345			74,312
Total loans, net of unearned income	17,164,125			15,395,996
Nonaccrual, no allowance	65,300
Commercial | Commercial, financial, and industrial | C&I | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	4,671			7,155
Past Due, Non-Accruing	254			14,385
Commercial | Commercial, financial, and industrial | C&I | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	287			237
Past Due, Non-Accruing	48,069			23,363
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	4,019,766			4,410,883
Total Accruing	4,020,591			4,410,883
Current, Non-Accruing	0			0
Total Non-Accruing	0			0
Total loans, net of unearned income	4,020,591			4,410,883
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	825			0
Past Due, Non-Accruing	0			0
Commercial | Commercial, financial, and industrial | Loans to Mortgage Companies | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			0
Past Due, Non-Accruing	0			0
Commercial | Commercial, financial, and industrial | TRUPS
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	209,177			218,287
Total Accruing	209,177			218,287
Current, Non-Accruing	0			0
Total Non-Accruing	0			0
Total loans, net of unearned income	209,177			218,287
Allowance for loan losses	18,400			19,100
Commercial | Commercial, financial, and industrial | TRUPS | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			0
Past Due, Non-Accruing	0			0
Commercial | Commercial, financial, and industrial | TRUPS | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			0
Past Due, Non-Accruing	0			0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing				23,840
Total Accruing				25,925
Current, Non-Accruing				0
Total Non-Accruing				0
Total loans, net of unearned income				25,925
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				287
Past Due, Non-Accruing				0
Commercial | Commercial, financial, and industrial | C&I Purchase Credit Impaired Loans | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				1,798
Past Due, Non-Accruing				0
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	4,811,179			4,334,283
Total Accruing	4,811,274			4,335,192
Current, Non-Accruing	797			0
Total Non-Accruing	2,067			1,825
Total loans, net of unearned income	4,813,341			4,337,017		3,861,031
Allowance for loan losses	57,285		47,625	36,112		32,953	34,382	31,311
Commercial | Commercial real estate | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	95			814
Past Due, Non-Accruing	0			485
Commercial | Commercial real estate | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			95
Past Due, Non-Accruing	1,270			1,340
Commercial | Commercial real estate | Income CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	4,766,561			4,242,044
Total Accruing	4,766,656			4,242,723
Current, Non-Accruing	797			0
Total Non-Accruing	2,067			1,359
Total loans, net of unearned income	4,768,723			4,244,082
Commercial | Commercial real estate | Income CRE | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	95			679
Past Due, Non-Accruing	0			19
Commercial | Commercial real estate | Income CRE | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			0
Past Due, Non-Accruing	1,270			1,340
Commercial | Commercial real estate | Residential CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	44,618			87,487
Total Accruing	44,618			87,494
Current, Non-Accruing	0			0
Total Non-Accruing	0			466
Total loans, net of unearned income	44,618			87,960
Commercial | Commercial real estate | Residential CRE | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			7
Past Due, Non-Accruing	0			466
Commercial | Commercial real estate | Residential CRE | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	0			0
Past Due, Non-Accruing	0			0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing				4,752
Total Accruing				4,975
Current, Non-Accruing				0
Total Non-Accruing				0
Total loans, net of unearned income				4,975
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				128
Past Due, Non-Accruing				0
Commercial | Commercial real estate | CRE Purchase Credit Impaired Loans | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				95
Past Due, Non-Accruing				0
Consumer | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	5,923,755			6,048,510
Total Accruing	5,956,069			6,091,445
Current, Non-Accruing	73,394			63,717
Total Non-Accruing	96,324			85,694
Total loans, net of unearned income	6,052,393			6,177,139		6,303,134
Allowance for loan losses	143,757		123,022	28,443		31,532	34,154	37,439
Consumer | Consumer Real Estate (a) | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	19,514			24,820
Past Due, Non-Accruing	3,797			5,303
Consumer | Consumer Real Estate (a) | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	12,800			18,115
Past Due, Non-Accruing	19,133			16,674
Consumer | Consumer Real Estate (a) | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	1,136,288			1,217,344
Total Accruing	1,148,824			1,232,169
Current, Non-Accruing	41,608			43,007
Total Non-Accruing	48,636			54,706
Total loans, net of unearned income	1,197,460			1,286,875
Consumer | Consumer Real Estate (a) | HELOC | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	5,736			9,156
Past Due, Non-Accruing	1,720			4,227
Consumer | Consumer Real Estate (a) | HELOC | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	6,800			5,669
Past Due, Non-Accruing	5,308			7,472
Consumer | Consumer Real Estate (a) | R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	4,787,467			4,812,446
Total Accruing	4,807,245			4,834,510
Current, Non-Accruing	31,786			20,710
Total Non-Accruing	47,688			30,988
Total loans, net of unearned income	4,854,933			4,865,498
Consumer | Consumer Real Estate (a) | R/E Installment Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	13,778			12,894
Past Due, Non-Accruing	2,077			1,076
Consumer | Consumer Real Estate (a) | R/E Installment Loans | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	6,000			9,170
Past Due, Non-Accruing	13,825			9,202
Consumer | Consumer Real Estate (a) | RE Installment Purchase Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing				18,720
Total Accruing				24,766
Current, Non-Accruing				0
Total Non-Accruing				0
Total loans, net of unearned income				24,766
Consumer | Consumer Real Estate (a) | RE Installment Purchase Credit Impaired Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				2,770
Past Due, Non-Accruing				0
Consumer | Consumer Real Estate (a) | RE Installment Purchase Credit Impaired Loans | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				3,276
Past Due, Non-Accruing				0
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	445,593			490,940
Total Accruing	449,055			495,530
Current, Non-Accruing	86			101
Total Non-Accruing	255			334
Total loans, net of unearned income	449,310			495,864		494,376
Allowance for loan losses	18,117		$ 19,327	13,266		$ 12,168	$ 12,662	$ 12,727
Consumer | Credit Card and Other | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	2,051			2,976
Past Due, Non-Accruing	77			44
Consumer | Credit Card and Other | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	1,411			1,614
Past Due, Non-Accruing	92			189
Consumer | Credit Card and Other | Credit Card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	164,527			198,917
Total Accruing	167,344			201,171
Current, Non-Accruing	0			0
Total Non-Accruing	0			0
Total loans, net of unearned income	167,344			201,171
Consumer | Credit Card and Other | Credit Card | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	1,520			1,076
Past Due, Non-Accruing	0			0
Consumer | Credit Card and Other | Credit Card | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	1,297			1,178
Past Due, Non-Accruing	0			0
Consumer | Credit Card and Other | Other Consumer Loans Class
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing	281,066			291,700
Total Accruing	281,711			293,839
Current, Non-Accruing	86			101
Total Non-Accruing	255			334
Total loans, net of unearned income	281,966			294,173
Consumer | Credit Card and Other | Other Consumer Loans Class | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	531			1,802
Past Due, Non-Accruing	77			44
Consumer | Credit Card and Other | Other Consumer Loans Class | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing	114			337
Past Due, Non-Accruing	$ 92			189
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current, Accruing				323
Total Accruing				520
Current, Non-Accruing				0
Total Non-Accruing				0
Total loans, net of unearned income				520
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				98
Past Due, Non-Accruing				0
Consumer | Credit Card and Other | Other Purchased Credit Impaired Loans | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due, Accruing				99
Past Due, Non-Accruing				$ 0
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2020		Dec. 31, 2019		Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 32,708,937,000	[1]	$ 31,061,111,000	[1]		$ 29,712,810,000
Troubled debt restructurings loans	192,600,000		206,300,000
Allowance for loan losses	$ 537,881,000		200,307,000		$ 444,490,000	192,749,000	$ 184,911,000	$ 180,424,000
Loans to Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loans collateralized with government guaranteed loans	95.00%
Allowance For TDRs To Recorded Investment Of TDRs
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 13,600,000		$ 19,700,000
Ratio of the allowance for loan losses to loans	7.00%		10.00%
Loans Held For Sale, Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings loans	$ 45,100,000		$ 51,100,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses			158,598,000
Allowance - purchased credit-impaired loans			848,000
Commercial | Loans to Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss	$ 4,000,000,000
Percentage of commercial & industrial loan portfolio	19.00%
Percentage contributed in total loan	12.00%
Commercial | Finance Insurance And Loans To Mortgage Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of commercial & industrial loan portfolio	31.00%
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 21,393,893,000		20,051,091,000			19,054,269,000
Allowance for loan losses	318,722,000		122,486,000		254,516,000	116,096,000	103,713,000	98,947,000
Commercial | Finance And Insurance Companies
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss	$ 2,500,000,000
Percentage of commercial & industrial loan portfolio	12.00%
Percentage contributed in total loan	8.00%
Consumer | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 6,052,393,000		6,177,139,000			6,303,134,000
Modified interest rate increase	1.00%
TDRS Maturities	40 years
Allowance for loan losses	$ 143,757,000		28,443,000		123,022,000	31,532,000	34,154,000	37,439,000
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	449,310,000		495,864,000			494,376,000
Allowance for loan losses	$ 18,117,000		13,266,000		$ 19,327,000	12,168,000	$ 12,662,000	$ 12,727,000
Consumer | Permanent Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR, reduction of interest rate by increment, basis points	0.25%
Consumer | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	19.00%
Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forbearance agreements time period	6 months
Minimum | Consumer | Consumer Real Estate (a)
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 | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate time period	5 years
TRUPS
Accounts, Notes, Loans and Financing Receivable [Line Items]
Small bank and business loan, total asset maximum cap	$ 15,000,000,000
TRUPS | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	209,177,000		218,287,000
Allowance for loan losses	$ 18,400,000		19,100,000
Heloc And Real Estate Installment Classes | Consumer | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified interest rate increase	2.00%
TDR, reduction of interest rate by increment, basis points	0.25%
Heloc And Real Estate Installment Classes | Minimum | Consumer | Consumer Real Estate (a)
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 (a)
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]
Loans, net of unearned income	$ 167,344,000		201,171,000
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
Purchased credit-impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						68,799,000
Allowance for loan losses						1,989,000
Allowance - purchased credit-impaired loans			2,000,000
Allowance for loan and lease losses write-offs, net			5,800,000
Provision for loan, lease, and other losses			1,300,000
Purchased credit-impaired loans | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						33,840,000
Allowance for loan losses						854,000
Purchased credit-impaired loans | Consumer | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						26,829,000
Allowance for loan losses						1,078,000
Purchased credit-impaired loans | Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income						903,000
Allowance for loan losses						$ 57,000
PD Grade 1 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lowest expected default probability	1
Allowance for loan losses			69,000
PD Grade 1 | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 2,674,017,000
Loss | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Loss | Maximum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	16
Pass | Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
Pass | Maximum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
Special Mention | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Special Mention | Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	13
Substandard | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	14
Doubtful | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	15
Loan Reassessed | Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 1,000,000
PD Grade 13 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses			$ 8,142,000
PD Grade 13 | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	336,048,000
PD Grade 13 | Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 500,000
LGD Grade 1 | Minimum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	1
LGD Grade 12 | Maximum | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loan grades	12
Paycheck Protection Plan | Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 2,100,000,000
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Loans - Schedule Of Troubled De

Loans - Schedule Of Troubled Debt Restructurings Occurring During The Year (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	61	63	106	146
Pre-Modification Outstanding Recorded Investment	$ 12,690	$ 5,136	$ 21,198	$ 28,634
Post-Modification Outstanding Recorded Investment	$ 12,682	$ 5,083	$ 19,649	$ 28,471
Commercial | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	1	1	4	3
Pre-Modification Outstanding Recorded Investment	$ 4,649	$ 222	$ 10,576	$ 14,117
Post-Modification Outstanding Recorded Investment	$ 4,699	$ 222	$ 9,132	$ 14,042
Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	44	44	62	110
Pre-Modification Outstanding Recorded Investment	$ 7,945	$ 4,805	$ 10,368	$ 14,334
Post-Modification Outstanding Recorded Investment	$ 7,892	$ 4,758	$ 10,280	$ 14,255
Consumer | Credit Card and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	16	18	40	33
Pre-Modification Outstanding Recorded Investment	$ 96	$ 109	$ 254	$ 183
Post-Modification Outstanding Recorded Investment	$ 91	$ 103	$ 237	$ 174
C&I | Commercial | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	1	1	4	3
Pre-Modification Outstanding Recorded Investment	$ 4,649	$ 222	$ 10,576	$ 14,117
Post-Modification Outstanding Recorded Investment	$ 4,699	$ 222	$ 9,132	$ 14,042
HELOC | Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	4	25	12	44
Pre-Modification Outstanding Recorded Investment	$ 152	$ 3,271	$ 1,064	$ 5,375
Post-Modification Outstanding Recorded Investment	$ 151	$ 3,235	$ 1,042	$ 5,319
R/E Installment Loans | Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	40	19	50	66
Pre-Modification Outstanding Recorded Investment	$ 7,793	$ 1,534	$ 9,304	$ 8,959
Post-Modification Outstanding Recorded Investment	$ 7,741	$ 1,523	$ 9,238	$ 8,936

Loans - Schedule Of Troubled _2

Loans - Schedule Of Troubled Debt Restructurings Within The Previous 12 Months (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2020USD ($)loan	Jun. 30, 2019USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	15	9	31	18
Recorded Investment | $	$ 2,262	$ 118	$ 3,597	$ 169
Commercial | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	0	0	0
Recorded Investment | $	$ 0	$ 0	$ 0	$ 0
Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	8	2	17	3
Recorded Investment | $	$ 2,233	$ 104	$ 3,537	$ 137
Consumer | Credit Card and Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	7	7	14	15
Recorded Investment | $	$ 29	$ 14	$ 60	$ 32
C&I | Commercial | C&I
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	0	0	0	0
Recorded Investment | $	$ 0	$ 0	$ 0	$ 0
HELOC | Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	3	1	7	2
Recorded Investment | $	$ 882	$ 66	$ 1,842	$ 99
R/E Installment Loans | Consumer | Consumer Real Estate (a)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number | loan	5	1	10	1
Recorded Investment | $	$ 1,351	$ 38	$ 1,695	$ 38

Loans - Accrued Interest (Detai

Loans - Accrued Interest (Details) $ in Thousands	Jun. 30, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	$ 92,062
Allowance for Credit Losses on COVID-19 Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	(860)
Commercial | Commercial, financial, and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	56,828
Commercial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	16,528
Consumer | Consumer Real Estate (a)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	18,020
Consumer | Credit Card and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	$ 1,546

Loans - Certain Loans Acquired

Loans - Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 13,375
Accretion	(5,792)
Adjustment for payoffs	(2,438)
Adjustment for charge-offs	(479)
Adjustment for pool excess recovery	0
Increase/(decrease) in accretable yield	5,513
Disposal	(4)
Other	(367)
Balance, end of period	$ 9,808

Loans - Schedule Of Acquired Pu

Loans - Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment (Details) $ in Thousands	Dec. 31, 2019USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	$ 54,221
Unpaid balance	58,216
Commercial, financial, and industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	24,973
Unpaid balance	25,938
Commercial Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	5,078
Unpaid balance	5,466
Consumer Real Estate (a) | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	23,681
Unpaid balance	26,245
Credit Card and Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	489
Unpaid balance	$ 567

Loans - Information By Class Re

Loans - Information By Class Related To Individually Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2019
Recorded Investment
Recorded Investment			$ 246,900
Unpaid Principal Balance
Unpaid Principal Balance			281,089
Related Allowance			25,916
Average Recorded Investment
Average Recorded Investment	$ 287,938	$ 272,890
Interest Income Recognized
Interest Income Recognized	1,514	3,065
Commercial
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			54,235
Impaired loans with related allowance recorded, Recorded investment			29,766
Recorded Investment			84,001
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			65,165
Impaired loans with related allowance recorded, Unpaid principal balance			31,536
Unpaid Principal Balance			96,701
Related Allowance			6,196
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	87,446	72,384
Impaired loans with related allowance recorded, Average recorded investment	13,913	12,218
Average Recorded Investment	101,359	84,602
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	191	384
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	9
Interest Income Recognized	191	393
Consumer
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			12,533
Impaired loans with related allowance recorded, Recorded investment			150,366
Recorded Investment			162,899
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			20,492
Impaired loans with related allowance recorded, Unpaid principal balance			163,896
Unpaid Principal Balance			184,388
Related Allowance			19,720
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	15,372	15,803
Impaired loans with related allowance recorded, Average recorded investment	171,207	172,485
Average Recorded Investment	186,579	188,288
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	1,323	2,672
Interest Income Recognized	1,323	2,672
Commercial, financial, and industrial | Commercial | C&I
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			52,672
Impaired loans with related allowance recorded, Recorded investment			29,766
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			63,602
Impaired loans with related allowance recorded, Unpaid principal balance			31,536
Related Allowance			6,196
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	67,337	61,552
Impaired loans with related allowance recorded, Average recorded investment	10,760	9,026
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	178	357
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	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	9,314
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Commercial, financial, and industrial | Commercial | TRUPS
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment			0
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance			0
Related Allowance			0
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	2,806	2,835
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0
Commercial real estate | Commercial | Income CRE
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			1,563
Impaired loans with related allowance recorded, Recorded investment			0
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			1,563
Impaired loans with related allowance recorded, Unpaid principal balance			0
Related Allowance			0
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	1,481	1,518
Impaired loans with related allowance recorded, Average recorded investment	347	357
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	13	27
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	9
Commercial real estate | Commercial | Residential CRE
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	0	0
Impaired loans with related allowance recorded, Average recorded investment	0	0
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	0	0
Consumer real estate | Consumer | HELOC
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			4,940
Impaired loans with related allowance recorded, Recorded investment			55,522
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			10,438
Impaired loans with related allowance recorded, Unpaid principal balance			59,122
Related Allowance			7,016
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	6,462	7,030
Impaired loans with related allowance recorded, Average recorded investment	62,623	63,819
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	504	1,026
Consumer real estate | Consumer | R/E Installment Loans
Recorded Investment
Impaired loans with no related allowance recorded, Recorded investment			7,593
Impaired loans with related allowance recorded, Recorded investment			94,191
Unpaid Principal Balance
Impaired loans with no related allowance recorded, Unpaid principal balance			10,054
Impaired loans with related allowance recorded, Unpaid principal balance			104,121
Related Allowance			12,282
Average Recorded Investment
Impaired loans with no related allowance recorded, Average recorded investment	8,910	8,773
Impaired loans with related allowance recorded, Average recorded investment	107,892	107,975
Interest Income Recognized
Impaired loans with no related allowance recorded, Interest income recognized	0	0
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	815	1,637
Credit Card and Other | Consumer
Recorded Investment
Impaired loans with related allowance recorded, Recorded investment			653
Unpaid Principal Balance
Impaired loans with related allowance recorded, Unpaid principal balance			653
Related Allowance			$ 422
Average Recorded Investment
Impaired loans with related allowance recorded, Average recorded investment	692	691
Interest Income Recognized
Impaired Financing Impaired loans with related allowance recorded, Interest income recognized	$ 4	$ 9

Allowance for Loan Losses - Nar

Allowance for Loan Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020		Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019		Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 32,708,937	[1]	$ 29,712,810	$ 32,708,937	[1]	$ 29,712,810		$ 31,061,111	[1]
Allowance for loan losses	537,881		192,749	$ 537,881		192,749	$ 444,490	200,307		$ 184,911	$ 180,424
Forecast period to estimate expected credit losses				4 years
Term to estimate expected credit losses determined by macroeconomics variable				3 years
Additional term to estimated expected credit losses determined by microeconomics variable diminishing				1 year
Measurement period of historical losses, pro rata period				1 year
Expense/(Credit) on unfunded commitments	11,158		(489)	$ 20,388		(93)
Consumer real estate | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average life				3 years
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses								158,598
Commercial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	21,393,893		19,054,269	$ 21,393,893		19,054,269		20,051,091
Allowance for loan losses	318,722		$ 116,096	$ 318,722		$ 116,096	$ 254,516	122,486		$ 103,713	$ 98,947
HELOC and R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average life				5 years
General C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral for secured borrowings	65,000			$ 65,000
Collateral, charge off	1,500			13,000
General C&I | Commercial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	17,164,125			17,164,125				$ 15,395,996
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral for secured borrowings	10,000			10,000
R/E Installment Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral for secured borrowings	26,000			26,000
COVID-19 Deferrals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	860			860
Paycheck Protection Plan | Commercial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 2,100,000			$ 2,100,000
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.

Allowance for Loan Losses (Deta

Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020		Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 444,490		$ 184,911	$ 200,307		$ 180,424
Charge-offs	(22,907)		(12,223)	(36,360)		(22,750)
Recoveries	6,298		7,061	12,540		13,075
Provision/(provision credit) for loan losses	110,000		13,000	255,000		22,000
Ending Balance	537,881		192,749	537,881		192,749
Allowance - individually evaluated for impairment	30,204		31,181	30,204		31,181
Allowance - collectively evaluated for impairment	507,677		159,579	507,677		159,579
Individually evaluated for impairment	289,917		300,726	289,917		300,726
Collectively evaluated for impairment	32,419,020		29,343,285	32,419,020		29,343,285
Loans, net of unearned income	32,708,937	[1]	29,712,810	32,708,937	[1]	29,712,810	$ 31,061,111	[1]
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				158,598
Allowance - individually evaluated for impairment							6,196
Allowance - collectively evaluated for impairment							151,554
Individually evaluated for impairment							84,001
Collectively evaluated for impairment							24,273,207
Commercial | C&I
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	254,516		103,713	122,486		98,947
Charge-offs	(18,201)		(6,590)	(24,952)		(9,691)
Recoveries	1,073		519	2,008		1,348
Provision/(provision credit) for loan losses	81,334		18,454	200,398		25,492
Ending Balance	318,722		116,096	318,722		116,096
Allowance - individually evaluated for impairment	16,577		8,484	16,577		8,484
Allowance - collectively evaluated for impairment	302,145		106,758	302,145		106,758
Individually evaluated for impairment	140,526		115,808	140,526		115,808
Collectively evaluated for impairment	21,253,367		18,904,621	21,253,367		18,904,621
Loans, net of unearned income	21,393,893		19,054,269	21,393,893		19,054,269	20,051,091
Commercial | Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	47,625		34,382	36,112		31,311
Charge-offs	(61)		(121)	(642)		(555)
Recoveries	156		(88)	729		(31)
Provision/(provision credit) for loan losses	9,565		(1,220)	28,434		2,228
Ending Balance	57,285		32,953	57,285		32,953
Allowance - individually evaluated for impairment	0		0	0		0
Allowance - collectively evaluated for impairment	57,285		32,953	57,285		32,953
Individually evaluated for impairment	160		1,777	160		1,777
Collectively evaluated for impairment	4,813,181		3,852,027	4,813,181		3,852,027
Loans, net of unearned income	4,813,341		3,861,031	4,813,341		3,861,031	4,337,017
Consumer | Consumer Real Estate (a)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	123,022		34,154	28,443		37,439
Charge-offs	(1,968)		(1,714)	(4,278)		(4,518)
Recoveries	3,987		5,525	7,542		9,566
Provision/(provision credit) for loan losses	18,716		(6,433)	19,058		(10,955)
Ending Balance	143,757		31,532	143,757		31,532
Allowance - individually evaluated for impairment	13,275		22,255	13,275		22,255
Allowance - collectively evaluated for impairment	130,482		8,199	130,482		8,199
Individually evaluated for impairment	148,543		182,442	148,543		182,442
Collectively evaluated for impairment	5,903,850		6,093,863	5,903,850		6,093,863
Loans, net of unearned income	6,052,393		6,303,134	6,052,393		6,303,134	6,177,139
Consumer | Credit Card and Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	19,327		12,662	13,266		12,727
Charge-offs	(2,677)		(3,798)	(6,488)		(7,986)
Recoveries	1,082		1,105	2,261		2,192
Provision/(provision credit) for loan losses	385		2,199	7,110		5,235
Ending Balance	18,117		12,168	18,117		12,168
Allowance - individually evaluated for impairment	352		442	352		442
Allowance - collectively evaluated for impairment	17,765		11,669	17,765		11,669
Individually evaluated for impairment	688		699	688		699
Collectively evaluated for impairment	448,622		492,774	448,622		492,774
Loans, net of unearned income	$ 449,310		494,376	449,310		494,376	$ 495,864
Cumulative Effect, Period Of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				106,394
Cumulative Effect, Period Of Adoption, Adjustment | Commercial | C&I
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				18,782
Cumulative Effect, Period Of Adoption, Adjustment | Commercial | Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(7,348)
Cumulative Effect, Period Of Adoption, Adjustment | Consumer | Consumer Real Estate (a)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				92,992
Cumulative Effect, Period Of Adoption, Adjustment | Consumer | Credit Card and Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ 1,968
Purchased credit-impaired loans
Allowance for Loan and Lease Losses [Roll Forward]
Ending Balance			1,989			1,989
Loans, net of unearned income			68,799			68,799
Purchased credit-impaired loans | Commercial | C&I
Allowance for Loan and Lease Losses [Roll Forward]
Ending Balance			854			854
Loans, net of unearned income			33,840			33,840
Purchased credit-impaired loans | Commercial | Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Ending Balance			0			0
Loans, net of unearned income			7,227			7,227
Purchased credit-impaired loans | Consumer | Consumer Real Estate (a)
Allowance for Loan and Lease Losses [Roll Forward]
Ending Balance			1,078			1,078
Loans, net of unearned income			26,829			26,829
Purchased credit-impaired loans | Consumer | Credit Card and Other
Allowance for Loan and Lease Losses [Roll Forward]
Ending Balance			57			57
Loans, net of unearned income			$ 903			$ 903
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 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	Jun. 30, 2020	Dec. 31, 2019
Intangible Assets [Line Items]
Gross Carrying Amount	$ 185,772	$ 240,637
Accumulated Amortization	(66,164)	(110,437)
Net Carrying Value	119,608	130,200
Core deposit intangibles
Intangible Assets [Line Items]
Gross Carrying Amount	157,150	157,150
Accumulated Amortization	(56,561)	(47,372)
Net Carrying Value	100,589	109,778
Customer relationships (a)
Intangible Assets [Line Items]
Gross Carrying Amount	23,000	77,865
Accumulated Amortization	(6,158)	(60,150)
Net Carrying Value	16,842	17,715
Finite-lived intangible assets, fully amortized		54,900
Other
Intangible Assets [Line Items]
Gross Carrying Amount	5,622	5,622
Accumulated Amortization	(3,445)	(2,915)
Net Carrying Value	2,177	2,707
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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 5,300,000	$ 6,200,000	$ 10,600,000	$ 12,400,000
Goodwill [Line Items]
Goodwill	1,432,787,000	$ 1,432,787,000	1,432,787,000	$ 1,432,787,000	$ 1,432,787,000	$ 1,432,787,000
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	Jun. 30, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2020	$ 10,568
2021	19,547
2022	17,412
2023	16,117
2024	14,679
2025	$ 12,580

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	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Goodwill, Beginning balance	$ 1,432,787	$ 1,432,787
Additions	0	0
Goodwill, Ending balance	1,432,787	1,432,787
Regional Banking
Goodwill [Roll Forward]
Goodwill, Beginning balance	1,289,819	1,289,819
Additions	0	0
Goodwill, Ending balance	1,289,819	1,289,819
Fixed Income
Goodwill [Roll Forward]
Goodwill, Beginning balance	142,968	142,968
Additions	0	0
Goodwill, Ending balance	$ 142,968	$ 142,968

Other Income And Other Expens_2

Other Income And Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
All other income and commissions:
Deferred compensation	$ 8,171	$ 1,938	$ (1,336)	$ 7,412
Other service charges	4,582	5,624	9,801	9,493
Mortgage banking	4,138	2,572	6,569	4,458
ATM and interchange fees	4,009	4,262	8,221	7,503
Letter of credit fees	1,559	1,253	3,021	2,621
Electronic banking fees	1,182	1,267	2,212	2,538
Dividend income	1,057	1,809	2,187	4,122
Insurance commissions	401	566	1,190	1,190
Gain/(loss) on extinguishment of debt	0	0	0	(1)
Other	4,890	6,376	12,488	10,962
Total	29,989	25,667	44,353	50,298
All other expense:
Expense/(Credit) on unfunded commitments	11,158	(489)	20,388	(93)
Non-service components of net periodic pension and post-retirement cost	2,961	559	5,469	991
Other insurance and taxes	2,599	2,495	5,278	5,189
Miscellaneous loan costs	2,356	857	3,450	1,884
Supplies	1,933	1,342	4,344	3,146
Employee training and dues	654	1,251	1,995	2,708
Customer relations	632	1,540	2,636	3,139
Travel and entertainment	474	2,906	3,183	5,618
OREO	437	25	253	(341)
Tax credit investments	426	267	772	942
Litigation and regulatory matters (c)	(3)	8,230	(16)	8,217
Other	12,118	26,158	21,193	33,046
Total	35,751	28,681	68,977	48,012
Non-Strategic
All other income and commissions:
Total	$ 710	567	$ 1,506	1,515
All other expense:
Litigation and regulatory matters (c)		$ 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								6 Months Ended
	Jun. 30, 2020		Mar. 31, 2020		Jun. 30, 2019		Mar. 31, 2019		Jun. 30, 2020		Jun. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 5,055,580		$ 5,076,008		$ 4,846,521		$ 4,785,380		$ 5,076,008		$ 4,785,380
Net unrealized gains/(losses)	610				55,566				102,043		108,117
Amounts reclassified from AOCI	756				3,096				2,767		6,010
Other comprehensive income/(loss)	1,366		103,444		58,662		55,465		104,810		114,127
Balance, end of period	5,208,385		5,055,580		4,926,081		4,846,521		5,208,385		4,926,081
Securities AFS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	119,357		31,079		(27,121)		(75,736)		31,079		(75,736)
Net unrealized gains/(losses)	(1,030)				47,991				87,248		96,606
Amounts reclassified from AOCI	0				201				0		201
Other comprehensive income/(loss)	(1,030)				48,192				87,248		96,807
Balance, end of period	118,327		119,357		21,071		(27,121)		118,327		21,071
Cash Flow Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	16,288		3,227		(6,725)		(12,112)		3,227		(12,112)
Net unrealized gains/(losses)	1,640				7,575				14,795		11,511
Amounts reclassified from AOCI	(1,623)				1,334				(1,717)		2,785
Other comprehensive income/(loss)	17				8,909				13,078		14,296
Balance, end of period	16,305		16,288		2,184		(6,725)		16,305		2,184
Pension and Post-retirement Plans
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	(271,809)		(273,914)		(287,305)		(288,768)		(273,914)		(288,768)
Net unrealized gains/(losses)	0				0				0		0
Amounts reclassified from AOCI	2,379				1,561				4,484		3,024
Other comprehensive income/(loss)	2,379				1,561				4,484		3,024
Balance, end of period	(269,430)		(271,809)		(285,744)		(287,305)		(269,430)		(285,744)
Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	(136,164)	[1]	(239,608)	[1]	(321,151)	[2]	(376,616)	[2]	(239,608)	[1]	(376,616)	[2]
Other comprehensive income/(loss)	1,366	[1]	103,444	[1]	58,662	[1]	55,465	[2]
Balance, end of period	$ (134,798)	[1]	$ (136,164)	[1]	$ (262,489)	[2]	$ (321,151)	[2]	$ (134,798)	[1]	$ (262,489)	[2]
[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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest and fees on loans	$ 305,913	$ 352,112	$ 632,512	$ 684,050
Provision/(benefit) for income taxes	12,780	34,467	17,547	61,525
Amounts reclassified from AOCI	756	3,096	2,767	6,010
All other expense	35,751	28,681	68,977	48,012
Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	0	201	0	201
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	(1,623)	1,334	(1,717)	2,785
Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	2,379	1,561	4,484	3,024
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	756	3,096	2,767	6,010
Reclassification out of Accumulated Other Comprehensive Income | Securities AFS
Accumulated Other Comprehensive Income (Loss) [Line Items]
Debt securities gains/(losses), net	0	267	0	267
Provision/(benefit) for income taxes	0	(66)	0	(66)
Amounts reclassified from AOCI	0	201	0	201
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest and fees on loans	(2,153)	1,772	(2,277)	3,699
Provision/(benefit) for income taxes	530	(438)	560	(914)
Amounts reclassified from AOCI	(1,623)	1,334	(1,717)	2,785
Reclassification out of Accumulated Other Comprehensive Income | Pension and Post-retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI	2,379	1,561	4,484	3,024
All other expense	3,155	2,074	5,946	4,017
Reclassification from AOCI, current period, tax	$ (776)	$ (513)	$ (1,462)	$ (993)

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				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income/(loss)	$ 56,665	$ 16,472	$ 113,742	$ 103,405	$ 73,137	$ 217,147
Net income attributable to noncontrolling interest	2,851		2,852		5,703	5,672
Net income/(loss) attributable to controlling interest	53,814		110,890		67,434	211,475
Preferred stock dividends	1,550	$ 1,550	1,550	$ 1,550	3,100	3,100
Net income/(loss) available to common shareholders	$ 52,264		$ 109,340		$ 64,334	$ 208,375
Weighted average common shares outstanding - basic (in shares)	312,090		314,063		311,843	315,740
Effect of dilutive securities (in shares)	846		1,723		949	1,980
Weighted average common shares outstanding - diluted (in shares)	312,936		315,786		312,792	317,720
Net income/(loss) per share available to common shareholders (in dollars per share)	$ 0.17		$ 0.35		$ 0.21	$ 0.66
Diluted income/(loss) per share available to common shareholders (in dollars per share)	$ 0.17		$ 0.35		$ 0.21	$ 0.66

Earnings Per Share - Schedule_2

Earnings Per Share - Schedule Of Anti-Dilutive Options and Awards (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
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)	$ 15.80	$ 21.03	$ 18.26	$ 21.39
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)	5,134	2,773	3,291	2,692
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)	4,389	2,403	3,934	1,985

Contingencies And Other Discl_2

Contingencies And Other Disclosures (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Estimated litigation liability	$ 0.3
Accrued losses on loan repurchase exposure	$ 12.9	$ 14.5

Pension, Savings, And Other E_3

Pension, Savings, And Other Employee Benefits - Narrative (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions by employer remainder of year	$ 5.2
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		$ 5.2

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8	$ 8	$ 16	$ 16
Interest cost	5,910	7,575	11,819	15,150
Expected return on plan assets	(6,169)	(9,173)	(12,337)	(18,346)
Prior service cost/(credit)	0	0	0	0
Actuarial (gain)/loss	3,224	2,435	6,448	4,870
Net periodic benefit cost/(credit)	2,973	845	5,946	1,690
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	24	24	49	48
Interest cost	307	351	611	702
Expected return on plan assets	(311)	(269)	(622)	(538)
Prior service cost/(credit)	8	0	16	0
Actuarial (gain)/loss	(79)	(117)	(154)	(234)
Net periodic benefit cost/(credit)	$ (51)	$ (11)	$ (100)	$ (22)

Business Segment Information -

Business Segment Information - Amounts Of Consolidated Revenue, Expense, Tax And Assets (Details) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jun. 30, 2020USD ($)segment	Jun. 30, 2019USD ($)
Segment Reporting, Measurement Disclosures [Abstract]
Number of operating segments | segment					4
Segment Reporting Information [Line Items]
Net interest income	$ 305,344		$ 303,610		$ 608,146	$ 598,118
Provision/(provision credit) for loan losses	110,000		13,000		255,000	22,000
Noninterest income	206,269		157,993		381,025	299,038
Noninterest expense	332,168		300,394		643,487	596,484
Income/(loss) before income taxes	69,445		148,209		90,684	278,672
Provision/(benefit) for income taxes	12,780		34,467		17,547	61,525
Net income/(loss)	56,665	$ 16,472	113,742	$ 103,405	73,137	217,147
Asset impairments, professional fees, and other customer-contact and technology-related expenses			9,100			9,000
Average assets	47,934,074		41,243,007		45,742,993	41,064,093
Regional Banking
Segment Reporting Information [Line Items]
Net interest income	349,749		297,534		649,936	583,636
Provision/(provision credit) for loan losses	108,311		17,776		253,752	31,218
Noninterest income	79,312		81,565		161,208	154,626
Noninterest expense	202,297		192,413		413,331	391,043
Income/(loss) before income taxes	118,453		168,910		144,061	316,001
Provision/(benefit) for income taxes	26,948		39,788		31,349	73,909
Net income/(loss)	91,505		129,122		112,712	242,092
Average assets	35,732,966		30,210,728		33,952,986	29,515,773
Fixed Income
Segment Reporting Information [Line Items]
Net interest income	13,545		6,171		24,459	13,503
Noninterest income	113,235		65,622		208,958	119,429
Noninterest expense	83,039		55,534		164,102	106,067
Income/(loss) before income taxes	43,741		16,259		69,315	26,865
Provision/(benefit) for income taxes	10,679		3,840		16,778	6,297
Net income/(loss)	33,062		12,419		52,537	20,568
Average assets	3,260,362		3,127,305		3,512,277	2,988,548
Corporate
Segment Reporting Information [Line Items]
Net interest income	(63,493)		(7,146)		(76,852)	(15,060)
Noninterest income	12,943		9,401		9,225	22,754
Noninterest expense	43,218		56,873		58,667	98,652
Income/(loss) before income taxes	(93,768)		(54,618)		(126,294)	(90,958)
Provision/(benefit) for income taxes	(25,097)		(13,525)		(31,469)	(25,296)
Net income/(loss)	(68,671)		(41,093)		(94,825)	(65,662)
Average assets	8,168,307		6,827,937		7,476,249	7,439,591
Non-Strategic
Segment Reporting Information [Line Items]
Net interest income	5,543		7,051		10,603	16,039
Provision/(provision credit) for loan losses	1,689		(4,776)		1,248	(9,218)
Noninterest income	779		1,405		1,634	2,229
Noninterest expense	3,614		(4,426)		7,387	722
Income/(loss) before income taxes	1,019		17,658		3,602	26,764
Provision/(benefit) for income taxes	250		4,364		889	6,615
Net income/(loss)	769		13,294		2,713	20,149
Average assets	$ 772,439		$ 1,077,037		$ 801,481	$ 1,120,181

Business Segment Information _2

Business Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Fixed income	$ 112,421	$ 66,414	$ 208,056	$ 120,163
Deposit transactions and cash management	30,787	32,374	61,077	63,995
Brokerage, management fees and commissions	13,800	14,120	29,205	26,753
Trust services and investment management	7,733	7,888	14,928	14,914
Bankcard income	6,652	6,355	13,905	13,307
Bank-owned life insurance (BOLI)	6,380	5,126	10,969	9,528
Debt securities gains (losses), net	0	(267)	0	(267)
Equity securities gains/(losses), net	(1,493)	316	(1,468)	347
All other income and commissions (Note 7)	29,989	25,667	44,353	50,298
Total noninterest income	206,269	157,993	381,025	299,038
Regional Banking
Disaggregation of Revenue [Line Items]
Fixed income	81	46	202	63
Deposit transactions and cash management	29,541	30,632	58,368	60,658
Brokerage, management fees and commissions	13,800	14,120	29,205	26,753
Trust services and investment management	7,750	7,902	14,963	14,958
Bankcard income	6,551	6,597	13,703	13,640
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 7)	21,589	22,268	44,767	38,554
Total noninterest income	79,312	81,565	161,208	154,626
Fixed Income
Disaggregation of Revenue [Line Items]
Fixed income	112,340	65,262	207,854	118,994
Deposit transactions and cash management	0	1	0	4
Brokerage, management fees and commissions	0	0	0	0
Trust services and investment management	0	0	0	0
Bankcard income	0	0	0	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 7)	895	359	1,104	431
Total noninterest income	113,235	65,622	208,958	119,429
Corporate
Disaggregation of Revenue [Line Items]
Fixed income	0	0	0	0
Deposit transactions and cash management	1,204	1,707	2,640	3,270
Brokerage, management fees and commissions	0	0	0	0
Trust services and investment management	(17)	(14)	(35)	(44)
Bankcard income	74	60	143	122
Bank-owned life insurance (BOLI)	6,380	5,126	10,969	9,528
Debt securities gains (losses), net	0	(267)	0	(267)
Equity securities gains/(losses), net	(1,493)	316	(1,468)	347
All other income and commissions (Note 7)	6,795	2,473	(3,024)	9,798
Total noninterest income	12,943	9,401	9,225	22,754
Non-Strategic
Disaggregation of Revenue [Line Items]
Fixed income	0	1,106	0	1,106
Deposit transactions and cash management	42	34	69	63
Brokerage, management fees and commissions	0	0	0	0
Trust services and investment management	0	0	0	0
Bankcard income	27	(302)	59	(455)
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 7)	710	567	1,506	1,515
Total noninterest income	779	1,405	1,634	2,229
Underwriting, portfolio advisory, and other noninterest income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 8,800	$ 7,100	$ 18,100	$ 14,400

Variable Interest Entities - Su

Variable Interest Entities - Summary Of VIE Consolidated By FHN (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Assets:
Other assets	$ 2,209,235	$ 2,046,338
Total assets	48,644,659	43,310,900
Liabilities:
Other liabilities	900,884	873,079
Total liabilities	43,436,274	38,234,892
Rabbi Trusts Used for Deferred Compensation Plans
Assets:
Other assets	93,212	91,873
Total assets	93,212	91,873
Liabilities:
Other liabilities	71,783	70,830
Total liabilities	$ 71,783	$ 70,830

Variable Interest Entities - _2

Variable Interest Entities - Summary of the Impact of Qualifying LIHTC Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Low income housing tax credits
Variable Interest Entity [Line Items]
Amortization of qualifying LIHTC investments	$ 5,752	$ 4,287	$ 11,313	$ 8,285
Affordable Housing Tax Credits And Other Tax Benefits	(4,758)	(3,522)	(9,356)	(7,151)
Other tax benefits related to qualifying LIHTC investments
Variable Interest Entity [Line Items]
Affordable Housing Tax Credits And Other Tax Benefits	$ (2,583)	$ (1,609)	$ (5,138)	$ (3,219)

Variable Interest Entities - _3

Variable Interest Entities - Summary Of VIE Not Consolidated By FHN (Details) - USD ($) $ in Thousands	Jun. 30, 2020		Dec. 31, 2019		Jun. 30, 2019
Variable Interest Entity [Line Items]
Loans, net of unearned income	$ 32,708,937	[1]	$ 31,061,111	[1]	$ 29,712,810
Trading securities	1,116,450		1,346,207
Term borrowings	2,032,476		791,368
Securities available-for-sale	5,476,156		4,445,403
Low Income Housing Partnerships
Variable Interest Entity [Line Items]
Maximum Loss Exposure	248,712		237,668
Liability Recognized	124,318		136,404
Maximum loss exposure, contractual funding commitments	124,300		136,400
Low Income Housing Partnerships | Other Assets
Variable Interest Entity [Line Items]
Maximum loss exposure, current investments	124,400		101,300
Other Tax Credit Investments
Variable Interest Entity [Line Items]
Maximum Loss Exposure	5,959		6,282
Liability Recognized	0		0
Small Issuer Trust Preferred Holdings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	209,177		238,397
Liability Recognized	0		0
On Balance Sheet Trust Preferred Securitization
Variable Interest Entity [Line Items]
Maximum Loss Exposure	32,144		33,265
Liability Recognized	82,030		80,908
Loans, net of unearned income	112,500		112,500
Trading securities	1,700		1,700
Term borrowings	82,000		80,900
Proprietary & Agency Residential Mortgage Securitizations
Variable Interest Entity [Line Items]
Maximum Loss Exposure	628		941
Liability Recognized	0		0
Holdings Of Agency Mortgage Backed Securities
Variable Interest Entity [Line Items]
Maximum Loss Exposure	4,561,144		4,537,685
Liability Recognized	0		0
Trading securities	700,000		500,000
Securities available-for-sale	3,900,000		4,000,000
Commercial Loan Troubled Debt Restructurings
Variable Interest Entity [Line Items]
Maximum Loss Exposure	43,432		45,169
Liability Recognized	0		0
Maximum loss exposure, contractual funding commitments			1,800
Loans, net of unearned income	43,400		43,400
Sale Leaseback Transaction
Variable Interest Entity [Line Items]
Maximum Loss Exposure	18,052		18,111
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]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 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 Thousands	Nov. 01, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash payables		$ 361,087				$ 361,087		$ 145,334
Total trading revenues		100,300	$ 54,500			178,600	$ 99,000
Cash flow hedge length of time					5 years
Hedged amount of foreign currency denominated loans		13,800				13,800		18,400
Derivative assets (Note 14)		599,445				599,445		182,984
Derivative liability		75,226				75,226		44,238
Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)					$ 250,000
Notional				$ 650,000
Derivative, expired during period						200,000
Visa Class B Shares
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities related to sale		18,000				18,000		22,800
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		253,700				253,700		63,100
Net fair value of derivative liabilities with adjustable posting thresholds		3,800				3,800		6,400
Collateral received		340,000				340,000		148,500
Securities posted collateral		43,500				43,500		18,400
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		253,600				253,600		63,100
Net fair value of derivative liabilities with adjustable posting thresholds		25,500				25,500		10,300
Collateral received		340,000				340,000		148,500
Securities posted collateral		65,100				65,100		22,700
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		230,200				230,200		136,600
Collateral cash payables		130,600				130,600		53,000
Senior Subordinated Notes | Senior Debt Maturing In December 2019
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings		400,000				400,000
Debt redeemed	$ 400,000
Senior Subordinated Notes | Senior Debt Maturing In December 2020
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings		500,000				500,000
Derivatives, interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash payables		348,497				348,497		143,334
Derivative assets (Note 14)		564,037				564,037		162,344
Derivative liability		44,743				44,743		24,431
Derivatives, interest rate contracts | Cash Flow Hedge | Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Variability in cash flows related to debt instruments (primarily loans)		700,000				700,000		$ 900,000
Credit Risk Contract
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset, notional amount		93,800				93,800
Derivative liability, notional amount		246,100				246,100
Derivative assets (Note 14)		170				170
Derivative liability		$ 830				$ 830

Derivatives - Derivatives Assoc

Derivatives - Derivatives Associated with Fixed Income Trading Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 3,667,914	$ 2,697,522
Assets	254,246	65,768
Liabilities	1,827	6,858
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	3,667,914	2,697,522
Assets	7,454	2,583
Liabilities	17,667	3,994
Option contracts purchased | Long
Derivative Instruments, Gain (Loss) [Line Items]
Notional		40,000
Assets		131
Liabilities		0
Forwards and futures purchased
Derivative Instruments, Gain (Loss) [Line Items]
Notional	7,351,632	9,217,350
Assets	31,853	17,029
Liabilities	787	3,187
Forwards and futures sold
Derivative Instruments, Gain (Loss) [Line Items]
Notional	7,744,323	9,403,112
Assets	3,555	3,611
Liabilities	$ 29,696	$ 16,620

Derivatives - Derivatives Ass_2

Derivatives - Derivatives Associated With Interest Rate Risk Management Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	$ 3,667,914	$ 2,697,522
Assets	254,246	65,768
Liabilities	1,827	6,858
Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	3,667,914	2,697,522
Assets	7,454	2,583
Liabilities	17,667	3,994
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	3,679,991	3,044,067
Assets	297,233	90,394
Liabilities	258	3,515
Customer Interest Rate Contracts Hedging | Hedging Instruments And Hedged Items | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional	3,679,991	3,044,067
Assets	4,877	3,537
Liabilities	24,922	9,735
Debt Hedging | Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	500,000	500,000
Assets	27
Liabilities		69
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Par
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	500,000	500,000
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Cumulative Fair Value Hedging Adjustments
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	2,142	(1,604)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings, Unamortized Premium (Discount) and Issuance Costs
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	(296)	(740)
Debt Hedging | Hedging Instruments And Hedged Items | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Term borrowings	$ 501,846	$ 497,656

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Customer Interest Rate Contracts Hedging | Customer interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	$ 15,844	$ 50,706	$ 211,396	$ 79,818
Customer Interest Rate Contracts Hedging | Offsetting upstream interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	(15,844)	(50,706)	(211,396)	(79,818)
Debt Hedging | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) related to interest rate derivatives	(737)	6,697	4,197	10,976
Debt Hedging | Term Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) related to term borrowings	$ 720	$ (6,605)	$ (3,745)	$ (10,871)

Derivatives - Derivatives Ass_3

Derivatives - Derivatives Associated With Cash Flow Hedges (Details) - Cash Flow Hedge - Hedging Instruments And Hedged Items - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	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)	$ 700,000	$ 900,000
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional	700,000	900,000
Assets	29
Liabilities	$ 48	$ 241

Derivatives - Gains_(Losses) _2

Derivatives - Gains/(Losses) on Derivatives Associated with Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss) expected to be reclassified to earnings in the next twelve months			$ (9,600)
Hedging Instruments And Hedged Items
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	$ 1,640	$ 7,575	14,795	$ 11,511
Gain/(loss) reclassified from AOCI into Interest income	(1,623)	1,334	(1,717)	2,785
Hedging Instruments And Hedged Items | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), cash flow hedges	$ 69	$ 11,896	$ 17,443	$ 19,114

Derivatives - Derivative Assets

Derivatives - Derivative Assets and Collateral Received (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Gross amounts of recognized assets	$ 599,445	$ 182,984
Derivative liabilities available for offset	0	0
Net amount	599,445	182,984
Derivative liabilities available for offset	(9,180)	(18,896)
Collateral received	(361,087)	(145,334)
Net amount	229,178	18,754
Derivative assets not subject to master netting agreements	300	100
Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized assets	564,037	162,344
Derivative liabilities available for offset	0	0
Net amount	564,037	162,344
Derivative liabilities available for offset	(2,253)	(5,604)
Collateral received	(348,497)	(143,334)
Net amount	213,287	13,406
Forward Contracts
Derivative [Line Items]
Gross amounts of recognized assets	35,408	20,640
Derivative liabilities available for offset	0	0
Net amount	35,408	20,640
Derivative liabilities available for offset	(6,927)	(13,292)
Collateral received	(12,590)	(2,000)
Net amount	$ 15,891	$ 5,348

Derivatives - Derivative Liabil

Derivatives - Derivative Liabilities and Collateral Pledged (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Gross amounts of recognized liabilities	$ 75,226	$ 44,238
Derivative assets available for offset	0	0
Derivative liability	75,226	44,238
Derivative assets available for offset	(9,180)	(18,896)
Collateral pledged	(62,388)	(25,204)
Net amount	3,658	138
Derivative liabilities not subject to master netting agreements	19,200	23,200
Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	44,743	24,431
Derivative assets available for offset	0	0
Derivative liability	44,743	24,431
Derivative assets available for offset	(2,253)	(5,604)
Collateral pledged	(38,832)	(18,689)
Net amount	3,658	138
Forward Contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	30,483	19,807
Derivative assets available for offset	0	0
Derivative liability	30,483	19,807
Derivative assets available for offset	(6,927)	(13,292)
Collateral pledged	(23,556)	(6,515)
Net amount	$ 0	$ 0

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	Jun. 30, 2020	Dec. 31, 2019
Securities Purchased under Agreements to Resell [Abstract]
Gross amounts of recognized assets	$ 302,267	$ 586,629
Gross amounts offset in the Statements of Condition	0	0
Net amounts of assets presented in the Statements of Condition	302,267	586,629
Offsetting securities sold under agreements to repurchase	(23,207)	(21,004)
Securities collateral (not recognized on FHN’s Statements of Condition)	(277,660)	(562,702)
Net amount	$ 1,400	$ 2,923

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	Jun. 30, 2020	Dec. 31, 2019
Securities Sold under Agreements to Repurchase [Abstract]
Gross amounts of recognized liabilities	$ 1,482,585	$ 716,925
Gross amounts offset in the Statements of Condition	0	0
Net amounts of liabilities presented in the Statements of Condition	1,482,585	716,925
Offsetting securities purchased under agreements to resell	(23,207)	(21,004)
Securities/ government guaranteed loans collateral	(1,459,297)	(695,879)
Net amount	$ 81	$ 42

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	Jun. 30, 2020	Dec. 31, 2019
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	$ 1,482,585	$ 716,925
Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	1,462,091	712,380
Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	20,494	4,545
U.S. treasuries
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	539,974	41,364
U.S. treasuries | Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	539,974	41,364
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	526,612	345,718
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	512,170	341,173
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	14,442	4,545
Government agency issued CMO
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	6,052
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	0
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	6,052
Other U.S. government agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under agreements to repurchase	139,756	54,924
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	139,756	54,924
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	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	270,191	274,919
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	270,191	274,919
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	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	$ 1,116,450	$ 1,346,207
Loans held-for-sale	13,263	14,033
Securities available-for-sale	5,476,156	4,445,403
Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	13,263	14,033
Securities available-for-sale	5,476,156	4,445,403
Total other assets	670,968	252,573
Total assets	7,276,837	6,058,216
Total other liabilities	94,389	67,480
Total liabilities	327,131	573,061
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	106,672	90,098
Total assets	106,672	90,098
Total other liabilities	30,483	19,807
Total liabilities	30,483	19,807
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	5,450,710	4,426,267
Total other assets	564,126	162,475
Total assets	7,130,658	5,934,008
Total other liabilities	45,091	24,878
Total liabilities	277,833	530,459
Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	13,263	14,033
Securities available-for-sale	25,446	19,136
Total other assets	170	0
Total assets	39,507	34,110
Total other liabilities	18,815	22,795
Total liabilities	18,815	22,795
Deferred compensation mutual funds | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	48,572	46,815
Deferred compensation mutual funds | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	48,572	46,815
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	35,408	20,640
Total other liabilities	30,483	19,807
Derivatives, forwards and futures | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	35,408	20,640
Total other liabilities	30,483	19,807
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	563,866	162,413
Total other liabilities	44,722	24,412
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	563,866	162,413
Total other liabilities	44,722	24,412
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	430	62
Total other liabilities	19,184	23,261
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	260	62
Total other liabilities	369	466
Derivatives, other | Level 3 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	170	0
Total other liabilities	18,815	22,795
U.S. treasuries | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	999,975	100
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	999,975	100
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	2,487,382	2,348,517
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	2,487,382	2,348,517
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	1,415,265	1,670,492
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
Government agency issued CMO | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	1,415,265	1,670,492
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
Other U.S. government agencies | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities available-for-sale	417,292	306,092
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	417,292	306,092
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	90,383	60,526
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	90,383	60,526
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	40,413	40,540
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	40,413	40,540
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	22,692	22,643
Equity, mutual funds, and other | Level 1 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total other assets	22,692	22,643
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	25,446	19,136
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	25,446	19,136
Fixed Income | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	1,115,822	1,345,266
Total trading liabilities - fixed income	232,742	505,581
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	1,115,822	1,345,266
Total trading liabilities - fixed income	232,742	505,581
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	119,121	134,844
Total trading liabilities - fixed income	195,753	406,380
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	119,121	134,844
Total trading liabilities - fixed income	195,753	406,380
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	431,765	268,024
Total trading liabilities - fixed income		33
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
Total trading liabilities - fixed income		0
Fixed Income | Government agency issued MBS | Level 2 | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	431,765	268,024
Total trading liabilities - fixed income		33
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
Total trading liabilities - fixed income		0
Fixed Income | Government agency issued CMO | Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Trading securities	226,732	250,652
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	226,732	250,652
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	91,203	124,972
Total trading liabilities - fixed income	578	88
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	91,203	124,972
Total trading liabilities - fixed income	578	88
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	17,467	120,744
Total trading liabilities - fixed income	756
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	17,467	120,744
Total trading liabilities - fixed income	756
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	229,556	445,253
Total trading liabilities - fixed income	35,655	99,080
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	229,556	445,253
Total trading liabilities - fixed income	35,655	99,080
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	(22)	777
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	(22)	777
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	628	941
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	$ 628	$ 941

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	$ (20,890)	$ (28,970)	$ (22,795)	$ (31,540)
Net income	(201)	(19)	(712)	116
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	2,446	2,444	4,862	4,879
Net transfers into/(out of) Level 3	0	0	0	0
Ending balance	(18,645)	(26,545)	(18,645)	(26,545)
Net unrealized gains/(losses) included in net income	(201)	(19)	(712)	116
Trading securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	785	1,397	941	1,524
Net income	(157)	8	(313)	29
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	(150)	0	(298)
Net transfers into/(out of) Level 3	0	0	0	0
Ending balance	628	1,255	628	1,255
Net unrealized gains/(losses) included in net income	0	(36)	0	(66)
Interest- only strips- AFS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	23,104	13,195	19,136	9,902
Net income	(1,233)	(141)	(2,528)	(1,399)
Purchases	0	0	5,481	86
Sales	0	(14,199)	(8,703)	(27,211)
Settlements	0	0	0	0
Net transfers into/(out of) Level 3	3,575	18,937	12,060	36,414
Ending balance	25,446	17,792	25,446	17,792
Net unrealized gains/(losses) included in net income	(959)	(543)	(1,813)	(1,435)
Loans held- for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	13,584	15,751	14,033	16,273
Net income	422	321	751	816
Purchases	0	10	0	10
Sales	0	0	0	0
Settlements	(743)	(990)	(1,521)	(2,007)
Net transfers into/(out of) Level 3	0	0	0	0
Ending balance	13,263	15,092	13,263	15,092
Net unrealized gains/(losses) included in net income	$ 422	$ 321	$ 751	$ 816

Fair Value of Assets & Liabil_5

Fair Value of Assets & Liabilities - Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Thousands		Jun. 30, 2020		Dec. 31, 2019		Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 13,263		$ 14,033
Loans, net of unearned income		32,708,937	[1]	31,061,111	[1]	$ 29,712,810
OREO	[2]	15,134		17,838
Non Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net of unearned income		66,062		42,208
OREO		13,177		15,660
Other assets		9,835		10,608
Non Recurring | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		644,219		493,524
Non Recurring | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		504		516
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 | 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 | Small Business Administration And USDA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		643,445		492,595
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		66,062		42,208
OREO		13,177		15,660
Other assets		9,835		10,608
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		774		929
Non Recurring | Level 3 | First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale		$ 504		$ 516
[1]	June 30, 2020 and December 31, 2019 include $16.9 million and $18.8 million , respectively, of held-to-maturity consumer mortgage loans secured by residential real estate in process of foreclosure.
[2]	June 30, 2020 and December 31, 2019 include $7.8 million and $9.2 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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans, net of unearned income	$ (1,274)	$ (4,639)	$ (6,113)	$ (4,436)
Net gains/(losses), Real estate acquired by foreclosure	(142)	(9)	(169)	26
Net gains/(losses), Other assets	(426)	(267)	(772)	(942)
Gain (loss) on financial assets measured on non-recurring basis	(3,093)	(5,979)	(9,261)	(6,620)
First Mortgages
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	(4)	10	1	25
SBAs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains/(losses), Loans held for sale	$ (1,247)	$ (1,074)	$ (2,208)	$ (1,293)

Fair Value of Assets & Liabil_7

Fair Value of Assets & Liabilities - Narrative (Details) - Corporate $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Disposition of Acquired Properties
Segment Reporting Information [Line Items]
Asset impairment charges	$ 4.6
Reversed asset impairment charges	0.7
Disposition of Acquired Properties | 2019 Business Optimization
Segment Reporting Information [Line Items]
Asset impairment charges	1.5
Leased Assets | 2019 Business Optimization
Segment Reporting Information [Line Items]
Asset impairment charges	14
Reversed asset impairment charges	1.4
Leased Assets | Rebranding Initiative
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	Jun. 30, 2020USD ($)month	Dec. 31, 2019USD ($)month
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 5,476,156	$ 4,445,403
Loans held-for-sale	13,263	14,033
Derivative liability	75,226	44,238
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	18,645	22,795
Loans net of unearned income	66,062	42,208
OREO, fair value	13,177	15,660
Loans Held For Sale - SBA | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale	774	929
Other Assets | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 9,835	$ 10,608
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
Constant prepayment rate | 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
Constant prepayment rate | 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
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	0.08	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
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
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	0.63	0.64
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	0.65	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	$ 5,800,000
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	5,400,000
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	$ 6,000,000
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	0.16
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	0.50
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	24	29
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	9	15
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	33	39
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	$ 13,767	$ 14,549
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	0.058	0.041
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	0.05	0.03
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	0.15	0.14
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	0.136	0.143
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	0.03
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	0.21	0.24
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
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
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
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
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
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
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	$ 25,446	$ 19,136
Interest- only strips- AFS | Constant prepayment rate | 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 | 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	0.12
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	0.16
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	0.14	0.16
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	0.15	0.17
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
Non Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 9,835	$ 10,608
Non Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 9,835	$ 10,608
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	0.08

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	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 13,263	$ 14,033
Fair value carrying amount less aggregate unpaid principal - Total loans	(4,594)	(5,245)
Nonaccrual loans	2,740	3,532
Fair value carrying amount less aggregate unpaid principal - Nonaccrual loans	(3,034)	(3,114)
Loans 90 days or more past due and still accruing	186	163
Fair value carrying amount less aggregate unpaid principal - Loans 90 days or more past due and still accruing	(136)	(105)
Aggregate unpaid principal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	17,857	19,278
Nonaccrual loans	5,774	6,646
Loans 90 days or more past due and still accruing	$ 322	$ 268

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
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	$ 422	$ 321	$ 751	$ 816

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	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans, net of unearned income and allowance for loan losses	$ 32,171,056	$ 30,860,804
Short-term financial assets:
Interest-bearing cash	3,135,844	482,405
Federal funds sold	113,000	46,536
Securities purchased under agreements to resell	302,267	586,629
Trading securities	1,116,450	1,346,207
Securities available-for-sale	5,476,156	4,445,403
Securities held-to-maturity	10,000	10,000
Derivative assets	599,445	182,984
Other assets:
Total assets	48,644,659	43,310,900
Liabilities:
Trading Liabilities	232,742	505,581
Short-term financial liabilities:
Federal funds purchased	778,529	548,344
Securities sold under agreements to repurchase	1,482,585	716,925
Other short-term borrowings	130,583	2,253,045
Term borrowings:
Other long term borrowings	2,032,476	791,368
Derivative liabilities	75,226	44,238
Total liabilities	43,436,274	38,234,892
Fair Value, Inputs, Level 3 | FHLB-Cincinnati Stock
Term borrowings:
Restricted investments	190,400	76,000
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	32,171,056	30,860,804
Short-term financial assets:
Interest-bearing cash	3,135,844	482,405
Federal funds sold	113,000	46,536
Securities purchased under agreements to resell	302,267	586,629
Total short-term financial assets	3,551,111	1,115,570
Trading securities	1,116,450	1,346,207
Loans held-for-sale	745,655	593,790
Securities available-for-sale	5,476,156	4,445,403
Securities held-to-maturity	10,000	10,000
Derivative assets	599,704	183,115
Other assets:
Tax credit investments	257,547	247,075
Deferred compensation assets	48,572	46,815
Equity, mutual funds, and other	343,825	229,352
Total other assets	649,944	523,242
Total assets	44,320,076	39,078,131
Liabilities:
Defined maturity	2,655,702	3,618,337
Trading Liabilities	232,742	505,581
Short-term financial liabilities:
Federal funds purchased	778,529	548,344
Securities sold under agreements to repurchase	1,482,585	716,925
Other short-term borrowings	130,583	2,253,045
Short Term Financial Liabilities	2,391,697	3,518,314
Term borrowings:
Real estate investment trust-preferred	46,270	46,236
Secured Borrowings	15,370	21,975
Junior subordinated debentures	145,262	144,593
Other long term borrowings	1,825,574	578,564
Total term borrowings	2,032,476	791,368
Derivative liabilities	94,389	67,480
Total liabilities	7,407,006	8,501,080
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	21,075,171	19,928,605
Reported Value Measurement | Commercial 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	4,756,056	4,300,905
Reported Value Measurement | Consumer 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	5,908,636	6,148,696
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	431,193	482,598
Reported Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale	13,263	14,033
Reported Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale	644,219	493,525
Reported Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale	4,758	5,197
Reported Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale	83,415	81,035
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	32,508,563	31,218,152
Short-term financial assets:
Interest-bearing cash	3,135,844	482,405
Federal funds sold	113,000	46,536
Securities purchased under agreements to resell	302,267	586,629
Total short-term financial assets	3,551,111	1,115,570
Trading securities	1,116,450	1,346,207
Loans held-for-sale	750,611	596,535
Securities available-for-sale	5,476,156	4,445,403
Securities held-to-maturity	9,881	10,001
Derivative assets	599,704	183,115
Other assets:
Tax credit investments	257,705	244,755
Deferred compensation assets	48,572	46,815
Equity, mutual funds, and other	343,825	229,352
Total other assets	650,102	520,922
Total assets	44,662,578	39,435,905
Liabilities:
Defined maturity	2,695,759	3,631,090
Trading Liabilities	232,742	505,581
Short-term financial liabilities:
Federal funds purchased	778,529	548,344
Securities sold under agreements to repurchase	1,482,585	716,925
Other short-term borrowings	130,583	2,253,045
Short Term Financial Liabilities	2,391,697	3,518,314
Term borrowings:
Real estate investment trust-preferred	47,000	47,000
Secured Borrowings	15,370	21,975
Junior subordinated debentures	138,950	142,375
Other long term borrowings	1,877,080	574,287
Total term borrowings	2,078,400	785,637
Derivative liabilities	94,389	67,480
Total liabilities	7,492,987	8,508,102
Loan commitments	2,492	3,656
Standby and other commitments	6,112	5,513
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	21,216,054	20,096,397
Estimate of Fair Value Measurement | Commercial 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	4,768,706	4,300,489
Estimate of Fair Value Measurement | Consumer 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	6,085,159	6,334,187
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	438,644	487,079
Estimate of Fair Value Measurement | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale	13,263	14,033
Estimate of Fair Value Measurement | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale	649,175	496,270
Estimate of Fair Value Measurement | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale	4,758	5,197
Estimate of Fair Value Measurement | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale	83,415	81,035
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	3,135,844	482,405
Federal funds sold	0	0
Securities purchased under agreements to resell	0	0
Total short-term financial assets	3,135,844	482,405
Trading securities	0	0
Loans held-for-sale	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Derivative assets	35,408	20,640
Other assets:
Tax credit investments	0	0
Deferred compensation assets	48,572	46,815
Equity, mutual funds, and other	22,692	22,643
Total other assets	71,264	69,458
Total assets	3,242,516	572,503
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
Secured Borrowings	0	0
Junior subordinated debentures	0	0
Other long term borrowings	0	0
Total term borrowings	0	0
Derivative liabilities	30,483	19,807
Total liabilities	30,483	19,807
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
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 (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 | 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	113,000	46,536
Securities purchased under agreements to resell	302,267	586,629
Total short-term financial assets	415,267	633,165
Trading securities	1,115,822	1,345,266
Loans held-for-sale	653,141	500,520
Securities available-for-sale	5,450,710	4,426,267
Securities held-to-maturity	0	0
Derivative assets	564,126	162,475
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	8,199,066	7,067,693
Liabilities:
Defined maturity	2,695,759	3,631,090
Trading Liabilities	232,742	505,581
Short-term financial liabilities:
Federal funds purchased	778,529	548,344
Securities sold under agreements to repurchase	1,482,585	716,925
Other short-term borrowings	130,583	2,253,045
Short Term Financial Liabilities	2,391,697	3,518,314
Term borrowings:
Real estate investment trust-preferred	0	0
Secured Borrowings	0	0
Junior subordinated debentures	0	0
Other long term borrowings	1,877,080	574,287
Total term borrowings	1,877,080	574,287
Derivative liabilities	45,091	24,878
Total liabilities	7,242,369	8,254,150
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
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 (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 | 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	648,383	495,323
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale	4,758	5,197
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	32,508,563	31,218,152
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	628	941
Loans held-for-sale	97,470	96,015
Securities available-for-sale	25,446	19,136
Securities held-to-maturity	9,881	10,001
Derivative assets	170	0
Other assets:
Tax credit investments	257,705	244,755
Deferred compensation assets	0	0
Equity, mutual funds, and other	321,133	206,709
Total other assets	578,838	451,464
Total assets	33,220,996	31,795,709
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
Secured Borrowings	15,370	21,975
Junior subordinated debentures	138,950	142,375
Other long term borrowings	0	0
Total term borrowings	201,320	211,350
Derivative liabilities	18,815	22,795
Total liabilities	220,135	234,145
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	21,216,054	20,096,397
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Commercial 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	4,768,706	4,300,489
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Consumer 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	6,085,159	6,334,187
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	438,644	487,079
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans (elected fair value)
Short-term financial assets:
Loans held-for-sale	13,263	14,033
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Government guaranteed loans (SBA and USDA)
Short-term financial assets:
Loans held-for-sale	792	947
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Other consumer loans- LOCOM
Short-term financial assets:
Loans held-for-sale	0	0
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 3 | Mortgage loans- LOCOM
Short-term financial assets:
Loans held-for-sale	83,415	81,035
Contractual Amount
Term borrowings:
Loan commitments	12,945,839	12,355,220
Standby and other commitments	$ 469,567	$ 459,268

Restructuring, Repositioning,_3

Restructuring, Repositioning, and Efficiency (Details) - 2019 Business Optimization - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Total restructuring, repositioning, and efficiency charges	$ 40	$ 18,668	$ 3	$ 30,820
Employee compensation, incentives and benefits
Restructuring Cost and Reserve [Line Items]
Total restructuring, repositioning, and efficiency charges	32	2,557	89	9,062
Professional fees
Restructuring Cost and Reserve [Line Items]
Total restructuring, repositioning, and efficiency charges	7	4,242	14	8,537
Occupancy
Restructuring Cost and Reserve [Line Items]
Total restructuring, repositioning, and efficiency charges	0	72	2	889
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring, repositioning, and efficiency charges	$ 1	$ 11,797	$ (102)	$ 12,332