10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

QUARTERLY PERIOD ENDED March 31, 2017

Commission File Number 1-34073

Huntington Bancshares Incorporated

Maryland	31-0724920
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

41 South High Street, Columbus, Ohio 43287

Registrant’s telephone number, including area code (614) 480-8300

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days.     x  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     x  Yes    ¨  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)
		Smaller reporting company	¨
		Emerging growth company	¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     ¨  Yes    x  No

There were 1,087,119,978 shares of Registrant’s common stock ($0.01 par value) outstanding on March 31, 2017.

HUNTINGTON BANCSHARES INCORPORATED

INDEX

PART I. FINANCIAL INFORMATION
Item 1. Financial Statements (Unaudited)	37
Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016	37
Condensed Consolidated Statements of Income for the three months ended March 31, 2017 and 2016	38
Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2017 and 2016	40
Condensed Consolidated Statements of Changes in Shareholders’ Equity for the three months ended March 31, 2017 and 2016	41
Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2017 and 2016	42
Notes to Unaudited Condensed Consolidated Financial Statements	44
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	6
Executive Overview	7
Discussion of Results of Operations	7
Risk Management and Capital:	15
Credit Risk	16
Market Risk	23
Liquidity Risk	24
Operational Risk	27
Compliance Risk	27
Capital	27
Fair Value	29
Business Segment Discussion	29
Additional Disclosures	34
Item 3. Quantitative and Qualitative Disclosures about Market Risk	90
Item 4. Controls and Procedures	90
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	91
Item 1A. Risk Factors	91
Item 6. Exhibits	92
Signatures	94

2

Glossary of Acronyms and Terms

The following listing provides a comprehensive reference of common acronyms and terms used throughout the document:

ABS	Asset-Backed Securities
ACL	Allowance for Credit Losses
AFS	Available-for-Sale
ALCO	Asset-Liability Management Committee
ALLL	Allowance for Loan and Lease Losses
ANPR	Advance Notice of Proposed Rulemaking
ASC	Accounting Standards Codification
ATM	Automated Teller Machine
AULC	Allowance for Unfunded Loan Commitments
Basel III	Refers to the final rule issued by the FRB and OCC and published in the Federal Register on October 11, 2013
BHC	Bank Holding Companies
BHC Act	Bank Holding Company Act of 1956
C&I	Commercial and Industrial
Camco Financial	Camco Financial Corp.
CCAR	Comprehensive Capital Analysis and Review
CDO	Collateralized Debt Obligations
CDs	Certificate of Deposit
CET1	Common equity tier 1 on a transitional Basel III basis
CFPB	Bureau of Consumer Financial Protection
CISA	Cybersecurity Information Sharing Act
CMO	Collateralized Mortgage Obligations
CRA	Community Reinvestment Act
CRE	Commercial Real Estate
CREVF	Commercial Real Estate and Vehicle Finance
DIF	Deposit Insurance Fund
Dodd-Frank Act	Dodd-Frank Wall Street Reform and Consumer Protection Act
EFT	Electronic Fund Transfer
EPS	Earnings Per Share
EVE	Economic Value of Equity
FASB	Financial Accounting Standards Board
FDIC	Federal Deposit Insurance Corporation
FDICIA	Federal Deposit Insurance Corporation Improvement Act of 1991
FHA	Federal Housing Administration
FHC	Financial Holding Company
FHLB	Federal Home Loan Bank

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FICO	Fair Isaac Corporation
FIRSTMERIT	FirstMerit Corporation
FRB	Federal Reserve Bank
FTE	Fully-Taxable Equivalent
FTP	Funds Transfer Pricing
GAAP	Generally Accepted Accounting Principles in the United States of America
HAA	Huntington Asset Advisors, Inc.
HASI	Huntington Asset Services, Inc.
HQLA	High Quality Liquid Asset
HTM	Held-to-Maturity
IRS	Internal Revenue Service
LCR	Liquidity Coverage Ratio
LGD	Loss-Given-Default
LIBOR	London Interbank Offered Rate
LIHTC	Low Income Housing Tax Credit
LTV	Loan to Value
Macquarie	Macquarie Equipment Finance, Inc. (U.S. operations)
MBS	Mortgage-Backed Securities
MD&A	Management’s Discussion and Analysis of Financial Condition and Results of Operations
MSA	Metropolitan Statistical Area
MSR	Mortgage Servicing Rights
NAICS	North American Industry Classification System
NALs	Nonaccrual Loans
NCO	Net Charge-off
NII	Net Interest Income
NIM	Net Interest Margin
NPAs	Nonperforming Assets
N.R.	Not relevant. Denominator of calculation is a gain in the current period compared with a loss in the prior period, or vice-versa
OCC	Office of the Comptroller of the Currency
OCI	Other Comprehensive Income (Loss)
OCR	Optimal Customer Relationship
OLEM	Other Loans Especially Mentioned
OREO	Other Real Estate Owned
OTTI	Other-Than-Temporary Impairment
PD	Probability-Of-Default
Plan	Huntington Bancshares Retirement Plan
RBHPCG	Regional Banking and The Huntington Private Client Group
REIT	Real Estate Investment Trust

4

ROC	Risk Oversight Committee
RWA	Risk-Weighted Assets
SAD	Special Assets Division
SBA	Small Business Administration
SEC	Securities and Exchange Commission
SERP	Supplemental Executive Retirement Plan
SRIP	Supplemental Retirement Income Plan
TCE	Tangible Common Equity
TDR	Troubled Debt Restructured Loan
U.S. Treasury	U.S. Department of the Treasury
UCS	Uniform Classification System
Unified	Unified Financial Securities, Inc.
UPB	Unpaid Principal Balance
USDA	U.S. Department of Agriculture
VIE	Variable Interest Entity
XBRL	eXtensible Business Reporting Language

5

PART I. FINANCIAL INFORMATION

When we refer to “we”, “our”, and “us”, and "the Company" in this report, we mean Huntington Bancshares Incorporated and our consolidated subsidiaries, unless the context indicates that we refer only to the parent company, Huntington Bancshares Incorporated. When we refer to the “Bank” in this report, we mean our only bank subsidiary, The Huntington National Bank, and its subsidiaries.

Item 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations

INTRODUCTION

We are a multi-state diversified regional bank holding company organized under Maryland law in 1966 and headquartered in Columbus, Ohio. Through the Bank, we have 150 years of servicing the financial needs of our customers. Through our subsidiaries, we provide full-service commercial and consumer banking services, mortgage banking services, automobile financing, recreational vehicle and marine financing, equipment leasing, investment management, trust services, brokerage services, insurance programs, and other financial products and services. Our 996 branches and private client group offices are located in Ohio, Illinois, Indiana, Kentucky, Michigan, Pennsylvania, West Virginia, and Wisconsin. Select financial services and other activities are also conducted in various other states. International banking services are available through the headquarters office in Columbus, Ohio. Our foreign banking activities, in total or with any individual country, are not significant.

This MD&A provides information we believe necessary for understanding our financial condition, changes in financial condition, results of operations, and cash flows. The MD&A included in our 2016 Form 10-K should be read in conjunction with this MD&A as this discussion provides only material updates to the 2016 Form 10-K. This MD&A should also be read in conjunction with the Unaudited Condensed Consolidated Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, and other information contained in this report.

6

EXECUTIVE OVERVIEW

Summary of 2017 First Quarter Results Compared to 2016 First Quarter

For the quarter, we reported net income of $208 million, or $0.17 per common share, compared with $171 million, or $0.20 per common share, in the year-ago quarter (see Table 1). Reported net income was impacted by FirstMerit acquisition-related net expenses totaling $71 million pre-tax, or $0.04 per common share.

Fully-taxable equivalent net interest income was $742 million, up $230 million, or 45%. The results reflected the benefit from a $24.9 billion, or 38%, increase in average earning assets and a 19 basis point improvement in the net interest margin to 3.30%. Average earning asset growth included a $16.4 billion, or 32%, increase in average loans and leases, and an $8.6 billion, or 57%, increase in average securities, both of which were impacted by the FirstMerit acquisition. The net interest margin expansion reflected a 26 basis point increase in earning asset yields, including the impact of purchase accounting, and a 1 basis point increase in the benefit from noninterest-bearing funds, partially offset by an 8 basis point increase in funding costs.

The provision for credit losses was $68 million, up $40 million, or 145%. NCOs increased $31 million to $39 million, primarily as a result of material CRE recoveries in the year-ago quarter. NCOs represented an annualized 0.24% of average loans and leases, which remains below our long-term target of 35 to 55 basis points.

Noninterest income was $312 million, up $71 million, or 29%. The increase was primarily a result of the FirstMerit acquisition. In addition, service charges on deposit accounts increased, reflecting the benefit of the FirstMerit acquisition and continued new customer acquisition. Also, mortgage banking income increased, reflecting an increase in mortgage origination volume and an increase from net MSR hedging-related activities.

Noninterest expense was $707 million, up $216 million, or 44%, reflecting the impact of the FirstMerit acquisition. Personnel costs increased, reflecting acquisition-related personnel expense and an increase in average full-time equivalent employees. Also, other expense increased, due to an increase in OREO and foreclosure expense. Further, deposit and other insurance expense increased, as a result of the larger assessment base as well as the FDIC Large Institution Surcharge implemented during the 2016 third quarter.

The tangible common equity to tangible assets ratio was 7.28%, down 61 basis points. The CET1 risk-based capital ratio was 9.74% at March 31, 2017, compared to 9.73% a year ago. The regulatory tier 1 risk-based capital ratio was 11.11% compared to 10.99% at March 31, 2016. Capital ratios were impacted by the goodwill created and the issuance of common stock as part of the FirstMerit acquisition. The regulatory Tier 1 risk-based and total risk-based capital ratios benefited from the issuance of Class D preferred equity during the 2016 second quarter and the issuance of Class C preferred equity during the 2016 third quarter in exchange for FirstMerit preferred equity in conjunction with the acquisition. The total risk-based capital ratio was impacted by the repurchase of trust preferred securities during the 2016 third quarter and fourth quarter. In addition, certain trust preferred securities were acquired in the FirstMerit acquisition and subsequently were redeemed. There were no common shares repurchased over the past five quarters.

Business Overview

General

Our general business objectives are: (1) grow net interest income and fee income, (2) deliver positive operating leverage, (3) increase primary customer relationships across all business segments, (4) continue to strengthen risk management and (5) maintain capital and liquidity positions consistent with our risk appetite.

Economy

We expect ongoing consumer and business confidence to translate into private sector investment fueling continued economic momentum. We are seeing solid manufacturing and infrastructure growth in the Midwest. Businesses are adding jobs and investing more, and growth in our pipelines has followed.

DISCUSSION OF RESULTS OF OPERATIONS

This section provides a review of financial performance from a consolidated perspective. It also includes a “Significant Items” section that summarizes key issues important for a complete understanding of performance trends. Key Unaudited Condensed Consolidated Balance Sheet and Unaudited Condensed Statement of Income trends are discussed. All earnings per share data are reported on a diluted basis. For additional insight on financial performance, please read this section in conjunction with the “Business Segment Discussion.”

7

Table 1 - Selected Quarterly Income Statement Data (1)
(dollar amounts in thousands, except per share amounts)
	Three months ended
	March 31,			December 31,			September 30,			June 30,			March 31,
	2017			2016			2016			2016			2016
Interest income	$	820,360		$	814,858		$	694,346		$	565,658		$	557,251
Interest expense	90,385			79,877			68,956			59,777			54,185
Net interest income	729,975			734,981			625,390			505,881			503,066
Provision for credit losses	67,638			74,906			63,805			24,509			27,582
Net interest income after provision for credit losses	662,337			660,075			561,585			481,372			475,484
Service charges on deposit accounts	83,420			91,577			86,847			75,613			70,262
Cards and payment processing income	47,169			49,113			44,320			39,184			36,447
Mortgage banking income	31,692			37,520			40,603			31,591			18,543
Trust and investment management services	33,869			34,016			28,923			22,497			22,838
Insurance income	15,264			16,486			15,865			15,947			16,225
Brokerage income	15,758			17,014			14,719			14,599			15,502
Capital markets fees	14,200			18,730			14,750			13,037			13,010
Bank owned life insurance income	17,542			17,067			14,452			12,536			13,513
Gain on sale of loans	12,822			24,987			7,506			9,265			5,395
Securities gains (losses)	(8		)	(1,771		)	1,031			656			—
Other income	40,735			29,598			33,399			36,187			30,132
Total noninterest income	312,463			334,337			302,415			271,112			241,867
Personnel costs	382,000			359,755			405,024			298,949			285,397
Outside data processing and other services	87,202			88,695			91,133			63,037			61,878
Equipment	46,700			59,666			40,792			31,805			32,576
Net occupancy	67,700			49,450			41,460			30,704			31,476
Professional services	18,295			23,165			47,075			21,488			13,538
Marketing	13,923			21,478			14,438			14,773			12,268
Deposit and other insurance expense	20,099			15,772			14,940			12,187			11,208
Amortization of intangibles	14,355			14,099			9,046			3,600			3,712
Other expense	57,148			49,417			48,339			47,118			39,027
Total noninterest expense	707,422			681,497			712,247			523,661			491,080
Income before income taxes	267,378			312,915			151,753			228,823			226,271
Provision for income taxes	59,284			73,952			24,749			54,283			54,957
Net income	208,094			238,963			127,004			174,540			171,314
Dividends on preferred shares	18,878			18,865			18,537			19,874			7,998
Net income applicable to common shares	$	189,216		$	220,098		$	108,467		$	154,666		$	163,316
Average common shares—basic	1,086,374			1,085,253			938,578			798,167			795,755
Average common shares—diluted	1,108,617			1,104,358			952,081			810,371			808,349
Net income per common share—basic	$	0.17		$	0.20		$	0.12		$	0.19		$	0.21
Net income per common share—diluted	0.17			0.20			0.11			0.19			0.20
Cash dividends declared per common share	0.08			0.08			0.07			0.07			0.07
Return on average total assets	0.84		%	0.95		%	0.58		%	0.96		%	0.96		%
Return on average common shareholders’ equity	8.2			9.4			5.4			9.6			10.4
Return on average tangible common shareholders’ equity (2)	11.3			12.9			7.0			11.0			11.9
Net interest margin (3)	3.30			3.25			3.18			3.06			3.11
Efficiency ratio (4)	65.7			61.6			75.0			66.1			64.6
Effective tax rate	22.2			23.6			16.3			23.7			24.3
Revenue—FTE
Net interest income	$	729,975		$	734,981		$	625,390		$	505,881		$	503,066
FTE adjustment	12,058			12,560			10,598			10,091			9,159
Net interest income (3)	742,033			747,541			635,988			515,972			512,225
Noninterest income	312,463			334,337			302,415			271,112			241,867
Total revenue (3)	$	1,054,496		$	1,081,878		$	938,403		$	787,084		$	754,092

8

(1) Comparisons for presented periods are impacted by a number of factors. Refer to the “Significant Items” for additional discussion regarding these key factors.

(2) Net income excluding expense for amortization of intangibles for the period divided by average tangible common shareholders’ equity. Average tangible common shareholders’ equity equals average total common shareholders’ equity less average intangible assets and goodwill. Expense for amortization of intangibles and average intangible assets are net of deferred tax liability, and calculated assuming a 35% tax rate.

(3) On a fully-taxable equivalent (FTE) basis assuming a 35% tax rate.

(4) Noninterest expense less amortization of intangibles and goodwill impairment divided by the sum of FTE net interest income and noninterest income excluding securities gains.

Significant Items

Earnings comparisons are impacted by the Significant Items summarized below:

1. Mergers and Acquisitions. Significant events relating to mergers and acquisitions, and the impacts of those events on our reported results, are as follows:

• During the 2017first quarter, $73 million of noninterest expense and $2 million of noninterest income was recorded related to the acquisition of FirstMerit. This resulted in a negative impact of $0.04 per common share.

• During the 2016 fourth quarter, $95 million of noninterest expense and a decrease of $1 million of noninterest income was recorded related to the acquisition of FirstMerit. This resulted in a negative impact of $0.06 per common share.

• During the 2016 first quarter, $6 million of noninterest expense was recorded related to the acquisition of FirstMerit. This resulted in a negative impact of $0.01 per common share.

2. Litigation reserves. During the 2016 fourth quarter, a $42 million reduction of litigation reserves was recorded as other noninterest expense. This resulted in a positive impact of $0.02 per common share.

The following table reflects the earnings impact of the above-mentioned Significant Items for periods affected:

Table 2 - Significant Items Influencing Earnings Performance Comparison
(dollar amounts in thousands, except per share amounts)
	Three Months Ended
	March 31, 2017						December 31, 2016						March 31, 2016
	Amount			EPS (1)			Amount			EPS (1)			Amount			EPS (1)
Net income	$	208,094					$	238,963					$	171,314
Earnings per share, after-tax				$	0.17					$	0.20					$	0.20
Significant Items—favorable (unfavorable) impact:	Earnings			EPS			Earnings			EPS			Earnings			EPS
Mergers and acquisitions, net expenses	$	(71,145	)				$	(96,142	)				$	(6,406	)
Tax impact	24,901						33,457						2,006
Mergers and acquisitions, after-tax	$	(46,244	)	$	(0.04	)	$	(62,685	)	$	(0.06	)	$	(4,400	)	$	(0.01	)
Litigation reserves	$	—					$	41,587					$	—
Tax impact	—						(14,888		)				—
Litigation reserves, after-tax	$	—		$	—		$	26,699		$	0.02		$	—		$	—

(1) Based upon the quarterly average outstanding diluted common shares.

Net Interest Income / Average Balance Sheet

The following tables detail the change in our average balance sheet and the net interest margin:

9

Table 3 - Consolidated Average Balance Sheet and Net Interest Margin Analysis
(dollar amounts in millions)
	Average Balances
	Three Months Ended															Change
	March 31,			December 31,			September 30,			June 30,			March 31,			1Q17 vs. 1Q16
	2017			2016			2016			2016			2016			Amount			Percent
Assets:
Interest-bearing deposits in banks	$	100		$	110		$	95		$	99		$	98		$	2		2	%
Loans held for sale	415			2,507			695			571			433			(18		)	(4	)
Securities:
Available-for-sale and other securities:
Taxable	12,800			13,734			9,785			6,904			6,633			6,167			93
Tax-exempt	3,049			3,136			2,854			2,510			2,358			691			29
Total available-for-sale and other securities	15,849			16,870			12,639			9,414			8,991			6,858			76
Trading account securities	137			139			49			41			40			97			245
Held-to-maturity securities—taxable	7,656			5,432			5,487			5,806			6,054			1,602			26
Total securities	23,643			22,441			18,175			15,261			15,085			8,558			57
Loans and leases: (1)
Commercial:
Commercial and industrial	27,922			27,727			24,957			21,344			20,649			7,273			35
Commercial real estate:
Construction	1,314			1,413			1,132			881			923			391			42
Commercial	6,039			5,805			5,227			4,345			4,283			1,756			41
Commercial real estate	7,353			7,218			6,359			5,226			5,206			2,147			41
Total commercial	35,276			34,945			31,316			26,570			25,855			9,421			36
Consumer:
Automobile	11,063			10,866			11,402			10,146			9,730			1,333			14
Home equity	10,072			10,101			9,260			8,416			8,441			1,631			19
Residential mortgage	7,777			7,690			7,012			6,187			6,018			1,759			29
RV and marine finance	1,874			1,844			915			—			—			N.R.			N.R.
Other consumer	919			959			817			613			574			345			60
Total consumer	31,705			31,460			29,406			25,362			24,763			6,942			28
Total loans and leases	66,981			66,405			60,722			51,932			50,618			16,363			32
Allowance for loan and lease losses	(636		)	(614		)	(623		)	(616		)	(604		)	(32		)	5
Net loans and leases	66,345			65,791			60,099			51,316			50,014			16,331			33
Total earning assets	91,139			91,463			79,687			67,863			66,234			24,905			38
Cash and due from banks	2,011			1,538			1,325			1,001			1,013			998			99
Intangible assets	2,387			2,421			1,547			726			730			1,657			227
All other assets	5,442			5,559			4,962			4,149			4,223			1,219			29
Total assets	$	100,343		$	100,367		$	86,898		$	73,123		$	71,596		$	28,747		40	%
Liabilities and Shareholders’ Equity:
Deposits:
Demand deposits—noninterest-bearing	$	21,730		$	23,250		$	20,033		$	16,507		$	16,334		$	5,396		33	%
Demand deposits—interest-bearing	16,805			15,294			12,362			8,445			7,776			9,029			116
Total demand deposits	38,535			38,544			32,395			24,952			24,110			14,425			60
Money market deposits	18,653			18,618			18,453			19,534			19,682			(1,029		)	(5	)
Savings and other domestic deposits	11,970			12,272			8,889			5,402			5,306			6,664			126
Core certificates of deposit	2,342			2,636			2,285			2,007			2,265			77			3
Total core deposits	71,500			72,070			62,022			51,895			51,363			20,137			39
Other domestic time deposits of $250,000 or more	470			391			382			402			455			15			3
Brokered deposits and negotiable CDs	3,969			4,273			3,904			2,909			2,897			1,072			37
Deposits in foreign offices	—			152			194			208			264			(264		)	—

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Total deposits	75,939		76,886		66,502		55,414		54,979		20,960		38
Short-term borrowings	3,792		2,628		1,306		1,032		1,145		2,647		231
Long-term debt	8,529		8,594		8,488		7,899		7,202		1,327		18
Total interest-bearing liabilities	66,530		64,858		56,263		47,838		46,992		19,538		42
All other liabilities	1,661		1,833		1,608		1,416		1,515		146		10
Shareholders’ equity	10,422		10,426		8,994		7,362		6,755		3,667		54
Total liabilities and shareholders’ equity	$	100,343	$	100,367	$	86,898	$	73,123	$	71,596	$	28,747	40	%

Table 3 - Consolidated Average Balance Sheet and Net Interest Margin Analysis (Continued)
	Average Yield Rates (2)
	Three Months Ended
	March 31,		December 31,		September 30,		June 30,		March 31,
Fully-taxable equivalent basis (3)	2017		2016		2016		2016		2016
Assets:
Interest-bearing deposits in banks	1.09	%	0.64	%	0.64	%	0.25	%	0.21	%
Loans held for sale	3.82		2.95		3.53		3.89		3.99
Securities:
Available-for-sale and other securities:
Taxable	2.38		2.43		2.35		2.37		2.39
Tax-exempt	3.79		3.60		3.01		3.38		3.40
Total available-for-sale and other securities	2.65		2.65		2.50		2.64		2.65
Trading account securities	0.11		0.18		0.58		0.98		0.50
Held-to-maturity securities—taxable	2.36		2.43		2.41		2.44		2.43
Total securities	2.54		2.58		2.47		2.56		2.56
Loans and leases: (1)
Commercial:
Commercial and industrial	3.98		3.83		3.68		3.49		3.52
Commercial real estate:
Construction	3.95		3.65		3.76		3.70		3.51
Commercial	3.69		3.54		3.54		3.35		3.59
Commercial real estate	3.74		3.56		3.58		3.41		3.57
Total commercial	3.93		3.78		3.66		3.47		3.53
Consumer:
Automobile	3.55		3.57		3.37		3.15		3.17
Home equity	4.45		4.24		4.21		4.17		4.20
Residential mortgage	3.63		3.58		3.61		3.65		3.69
RV and marine finance	5.63		5.64		5.70		—		—
Other consumer	12.05		10.91		10.93		10.28		10.02
Total consumer	4.23		4.13		3.97		3.79		3.81
Total loans and leases	4.07		3.95		3.81		3.63		3.67
Total earning assets	3.70		3.60		3.52		3.41		3.44
Liabilities:
Deposits:
Demand deposits—noninterest-bearing	—		—		—		—		—
Demand deposits—interest-bearing	0.15		0.11		0.11		0.09		0.09
Total demand deposits	0.07		0.04		0.04		0.03		0.03
Money market deposits	0.26		0.24		0.24		0.24		0.24
Savings and other domestic deposits	0.22		0.25		0.21		0.11		0.13
Core certificates of deposit	0.39		0.29		0.43		0.79		0.82
Total core deposits	0.22		0.20		0.20		0.22		0.23
Other domestic time deposits of $250,000 or more	0.45		0.39		0.40		0.40		0.41
Brokered deposits and negotiable CDs	0.72		0.48		0.44		0.40		0.38

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Deposits in foreign offices	—		0.13		0.13		0.13		0.13
Total deposits	0.26		0.23		0.22		0.23		0.24
Short-term borrowings	0.63		0.36		0.29		0.36		0.32
Long-term debt	2.33		2.19		1.97		1.85		1.68
Total interest-bearing liabilities	0.54		0.48		0.49		0.50		0.46
Net interest rate spread	3.16		3.12		3.03		2.91		2.98
Impact of noninterest-bearing funds on margin	0.14		0.13		0.15		0.15		0.13
Net interest margin	3.30	%	3.25	%	3.18	%	3.06	%	3.11	%

(1) For purposes of this analysis, NALs are reflected in the average balances of loans.

(2) Loan and lease, and deposit average rates include impact of applicable derivatives, non-deferrable fees, and amortized fees.

(3) FTE yields are calculated assuming a 35% tax rate.

N.R. - Not relevant.

2017 First Quarter versus 2016 First Quarter

FTE net interest income for the 2017 first quarterincreased$230 million, or 45%, from the 2016 first quarter. This reflected the benefit from the $24.9 billion, or 38%, increase in average earning assets coupled with a 19 basis point improvement in the FTE net interest margin to 3.30%. The NIM expansion reflected a 26 basis point increase in earning asset yields, including the 16 basis point impact of purchase accounting, and a 1 basis point increase in the benefit from noninterest-bearing funds, partially offset by an 8 basis point increase in funding costs.

Average earning assets for the 2017 first quarterincreased$24.9 billion, or 38%, from the year-ago quarter, primarily reflecting the impact of the FirstMerit acquisition. Average securities increased $8.6 billion, or 57%, which included $2.8 billion of direct purchase municipal instruments in our commercial banking segment compared to $2.1 billion in the year-ago quarter. Average residential mortgage loans increased $1.8 billion, or 29%, as we continue to see increased demand for residential mortgage loans across our footprint.

Average total deposits for the 2017 first quarterincreased$21.0 billion, or 38%, from the year-ago quarter, while average total core deposits increased$20.1 billion, or 39%, primarily reflecting the impact of the FirstMerit acquisition. Average demand deposits increased $14.4 billion, or 60%, comprised of a $10.3 billion, or 67%, increase in average commercial demand deposits and a $4.2 billion, or 47%, increase in average consumer demand deposits. Average short-term borrowings increased $2.6 billion, or 231%, reflecting the maintenance of excess liquidity surrounding the branch conversion. Average long-term debt increased $1.3 billion, or 18%, reflecting the issuance of $3.0 billion and maturity of $1.0 billion of senior debt over the past five quarters.

2017 First Quarter versus 2016 Fourth Quarter

Compared to the 2016 fourth quarter, FTE net interest income decreased $6 million, or 1%. The impact of a $0.3 billion decrease in average earning assets was partially offset by a 5 basis points increase in NIM. The increase in the NIM reflected a 10 basis point increase in earning asset yields and a 1 basis point increase in the benefit from noninterest-bearing funds, partially offset by a 6 basis point increase in funding costs.

Average earning assets decreased$0.3 billion, or less than 1% from the 2016 fourth quarter. Average loans held for sale and other earnings assets decreased $2.1 billion, or 80%, primarily reflecting the $1.5 billion automobile loan securitization and the balance sheet optimization-related loan sales completed during the 2016 fourth quarter. Average securities increased $1.2 billion, or 5%, reflecting the reinvestment of the proceeds from the 2016 fourth quarter automobile loan securitization into securities qualifying as High Quality Liquid Assets for the LCR. Average loans and leases increased$0.6 billion, or 1%, primarily reflecting growth in automobile loans and core middle market and small business C&I lending.

Average total core deposits decreased$0.6 billion, or 1%, primarily reflecting the divestiture of thirteen branches, including $0.6 billion of deposits, in the 2016 fourth quarter. Average demand deposits were flat as a $1.5 billion, or 10%, increase in average interest-bearing demand deposits offset a $1.5 billion, or 7%, decrease in average noninterest-bearing demand deposits. Average total debt increased $1.1 billion, driven by an increase in short-term borrowings of $1.2 billion, or 44%, reflecting the maintenance of excess liquidity surrounding the branch conversion.

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Provision for Credit Losses

(This section should be read in conjunction with the Credit Risk section.)

The provision for credit losses is the expense necessary to maintain the ALLL and the AULC at levels appropriate to absorb our estimate of credit losses in the loan and lease portfolio and the portfolio of unfunded loan commitments and letters-of-credit (See Credit Quality discussion).

The provision for credit losses was $68 million, up $40 million, or 145%. NCOs increased$31 million to $39 million, primarily as a result of material CRE recoveries in the year-ago quarter. Net charge-offs represented an annualized 0.24% of average loans and leases, which remains below our long-term target of 35 to 55 basis points.

Noninterest Income

The following table reflects noninterest income for each of the past five quarters:

Table 4 - Noninterest Income
(dollar amounts in thousands)
	Three Months Ended												1Q17 vs. 1Q16					1Q17 vs. 4Q16
	March 31,			December 31,			September 30,		June 30,		March 31,		Change					Change
	2017			2016			2016		2016		2016		Amount			Percent		Amount			Percent
Service charges on deposit accounts	$	83,420		$	91,577		$	86,847	$	75,613	$	70,262	$	13,158		19	%	$	(8,157	)	(9	)%
Cards and payment processing income	47,169			49,113			44,320		39,184		36,447		10,722			29		(1,944		)	(4	)
Mortgage banking income	31,692			37,520			40,603		31,591		18,543		13,149			71		(5,828		)	(16	)
Trust and investment management services	33,869			34,016			28,923		22,497		22,838		11,031			48		(147		)	—
Insurance income	15,264			16,486			15,865		15,947		16,225		(961		)	(6	)	(1,222		)	(7	)
Brokerage income	15,758			17,014			14,719		14,599		15,502		256			2		(1,256		)	(7	)
Capital markets fees	14,200			18,730			14,750		13,037		13,010		1,190			9		(4,530		)	(24	)
Bank owned life insurance income	17,542			17,067			14,452		12,536		13,513		4,029			30		475			3
Gain on sale of loans	12,822			24,987			7,506		9,265		5,395		7,427			138		(12,165		)	(49	)
Securities gains (losses)	(8		)	(1,771		)	1,031		656		—		(8		)	—		1,763			(100	)
Other income	40,735			29,598			33,399		36,187		30,132		10,603			35		11,137			38
Total noninterest income	$	312,463		$	334,337		$	302,415	$	271,112	$	241,867	$	70,596		29	%	$	(21,874	)	(7	)%

2017 First Quarter versus 2016 First Quarter

Noninterest income for the 2017 first quarterincreased$71 million, or 29%, from the year-ago quarter, primarily reflecting the impact of the FirstMerit acquisition. Service charges on deposit accounts increased$13 million, or 19%, reflecting the benefit of the FirstMerit acquisition and continued new customer acquisition. Of the increase, $8 million was attributable to consumer deposit accounts, and $6 million was attributable to commercial deposit accounts. Mortgage banking income increased$13 million, or 71%, reflecting a 35% increase in mortgage origination volume and an $8 million increase from net mortgage servicing rights hedging-related activities.

2017 First Quarter versus 2016 Fourth Quarter

Compared to the 2016 fourth quarter, total noninterest income decreased$22 million, or 7%. Gain on sale of loans decreased$12 million, or 49%, primarily reflecting the $11 million of gains related to the balance sheet optimization strategy completed in the 2016 fourth quarter. Service charges on deposit accounts decreased$8 million, or 9%, primarily reflecting a $7 million seasonal decline in service charges on consumer accounts. Mortgage banking income decreased$6 million, or 16%, primarily driven by a decline in net MSR activity. These decreases were partially offset by an $11 million, or 38%, increase in other income, primarily reflecting the $8 million unfavorable impact recorded in the prior quarter, related to ineffectiveness of derivatives used to hedge fixed-rate, long-term debt.

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Noninterest Expense

(This section should be read in conjunction with Significant Items 1 and 2.)

The following table reflects noninterest expense for each of the past five quarters:

Table 5 - Noninterest Expense
(dollar amounts in thousands)
	Three Months Ended										1Q17 vs. 1Q16				1Q17 vs. 4Q16
	March 31,		December 31,		September 30,		June 30,		March 31,		Change				Change
	2017		2016		2016		2016		2016		Amount		Percent		Amount			Percent
Personnel costs	$	382,000	$	359,755	$	405,024	$	298,949	$	285,397	$	96,603	34	%	$	22,245		6	%
Outside data processing and other services	87,202		88,695		91,133		63,037		61,878		25,324		41		(1,493		)	(2	)
Equipment	46,700		59,666		40,792		31,805		32,576		14,124		43		(12,966		)	(22	)
Net occupancy	67,700		49,450		41,460		30,704		31,476		36,224		115		18,250			37
Professional services	18,295		23,165		47,075		21,488		13,538		4,757		35		(4,870		)	(21	)
Marketing	13,923		21,478		14,438		14,773		12,268		1,655		13		(7,555		)	(35	)
Deposit and other insurance expense	20,099		15,772		14,940		12,187		11,208		8,891		79		4,327			27
Amortization of intangibles	14,355		14,099		9,046		3,600		3,712		10,643		287		256			2
Other expense	57,148		49,417		48,339		47,118		39,027		18,121		46		7,731			16
Total noninterest expense	$	707,422	$	681,497	$	712,247	$	523,661	$	491,080	$	216,342	44	%	$	25,925		4	%
Number of employees (average full-time equivalent)	16,331		15,993		14,511		12,363		12,386		3,945		32	%	338			2	%

Impacts of Significant Items:

	Three Months Ended
	March 31,		December 31,			March 31,
(dollar amounts in thousands)	2017		2016			2016
Personnel costs	$	19,555	$	(5,385	)	$	474
Outside data processing and other services	14,475		15,420			363
Equipment	5,763		20,000			—
Net occupancy	23,342		7,146			20
Professional services	4,218		9,141			4,288
Marketing	816		4,340			13
Other expense	5,126		2,742			1,248
Total noninterest expense adjustments	$	73,295	$	53,404		$	6,406

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Adjusted Noninterest Expense (See Non-GAAP Financial Measures in the Additional Disclosures section):

	Three Months Ended						1Q17 vs. 1Q16				1Q17 vs. 4Q16
	March 31,		December 31,		March 31,		Change				Change
(dollar amounts in thousands)	2017		2016		2016		Amount		Percent		Amount			Percent
Personnel costs	$	362,445	$	365,140	$	284,923	$	77,522	27	%	$	(2,695	)	(1	)%
Outside data processing and other services	72,727		73,275		61,515		11,212		18		(548		)	(1	)
Equipment	40,937		39,666		32,576		8,361		26		1,271			3
Net occupancy	44,358		42,304		31,456		12,902		41		2,054			5
Professional services	14,077		14,024		9,250		4,827		52		53			—
Marketing	13,107		17,138		12,255		852		7		(4,031		)	(24	)
Deposit and other insurance expense	20,099		15,772		11,208		8,891		79		4,327			27
Amortization of intangibles	14,355		14,099		3,712		10,643		287		256			2
Other expense	52,022		46,675		37,779		14,243		38		5,347			11
Total adjusted noninterest expense (Non-GAAP)	$	634,127	$	628,093	$	484,674	$	149,453	31	%	$	6,034		1	%

2017 First Quarter versus 2016 First Quarter

Reported noninterest expense for the 2017 first quarterincreased$216 million, or 44%, from the year-ago quarter, primarily reflecting the impact of the FirstMerit acquisition, including Significant Items. Personnel costs increased $97 million, or 34%, primarily reflecting $20 million of acquisition-related personnel expense and a 32% increase in average full-time equivalent employees. Other expense increased $18 million, or 46%, including a $5 million increase in OREO and foreclosure expense as well as the $4 million net increase in acquisition-related expenses. Deposit and other insurance expense increased $9 million, or 79%, reflecting the larger assessment base as well as the FDIC Large Institution Surcharge implemented during the 2016 third quarter.

2017 First Quarter versus 2016 Fourth Quarter

Reported noninterest expense increased$26 million, or 4%, from the 2016 fourth quarter, including a $20 million net increase in Significant Items. Personnel costs increased$22 million, or 6%, primarily related to the $18 million gain on the settlement of a portion of the FirstMerit pension plan liability during the 2016 fourth quarter. Other expense increased$8 million, or 16%, primarily reflecting the $6 million benefit related to the extinguishment of trust preferred securities in the 2016 fourth quarter. Marketing expense decreased$8 million, or 35%, primarily reflecting the $3 million net decrease in acquisition-related expenses and the timing of advertising campaigns.

Provision for Income Taxes

The provision for income taxes in the 2017 first quarter was $59 million. This compared with a provision for income taxes of $55 million in the 2016 first quarter and $74 million in the 2016 fourth quarter. All periods included the benefits from tax-exempt income, tax-advantaged investments, general business credits, investments in qualified affordable housing projects, excess tax deductions for stock-based compensation, and capital losses. The net federal deferred tax asset was $91 million and the net state deferred tax asset was $41 million at March 31, 2017.

We file income tax returns with the IRS and various state, city, and foreign jurisdictions. Federal income tax audits have been completed for tax years through 2009. The IRS is currently examining our 2010 and 2011 consolidated federal income tax returns. Various state and other jurisdictions remain open to examination, including Ohio, Kentucky, Indiana, Michigan, Pennsylvania, West Virginia, Wisconsin, and Illinois.

RISK MANAGEMENT AND CAPITAL

We use a multi-faceted approach to risk governance. It begins with the board of directors defining our risk appetite as aggregate moderate-to-low. Risk awareness, identification and assessment, reporting, and active management are key elements in overall risk management. Controls include, among others, effective segregation of duties, access, authorization and reconciliation procedures, as well as staff education and a disciplined assessment process.

We believe that our primary risk exposures are credit, market, liquidity, operational, and compliance oriented. More information on risk can be found in the Risk Factors section included in Item 1A of our 2016 Form 10-K and subsequent filings

15

with the SEC. The MD&A included in our 2016 Form 10-K should be read in conjunction with this MD&A as this discussion provides only material updates to the Form 10-K. This MD&A should also be read in conjunction with the financial statements, notes and other information contained in this report. Our definition, philosophy, and approach to risk management have not materially changed from the discussion presented in the 2016 Form 10-K.

Credit Risk

Credit risk is the risk of financial loss if a counterparty is not able to meet the agreed upon terms of the financial obligation. The majority of our credit risk is associated with lending activities, as the acceptance and management of credit risk is central to profitable lending. We also have credit risk associated with our AFS and HTM securities portfolios (see Note 4 and Note 5 of the Notes to the Unaudited Condensed Consolidated Financial Statements). We engage with other financial counterparties for a variety of purposes including investing, asset and liability management, mortgage banking, and trading activities. While there is credit risk associated with derivative activity, we believe this exposure is minimal.

We continue to focus on the identification, monitoring, and managing of our credit risk. In addition to the traditional credit risk mitigation strategies of credit policies and processes, market risk management activities, and portfolio diversification, we use quantitative measurement capabilities utilizing external data sources, enhanced use of modeling technology, and internal stress testing processes. Our portfolio management resources demonstrate our commitment to maintaining an aggregate moderate-to-low risk profile. In our efforts to continue to identify risk mitigation techniques, we have focused on product design features, origination policies, and solutions for delinquent or stressed borrowers.

Loan and Lease Credit Exposure Mix

Refer to the “Loan and Lease Credit Exposure Mix” section of our 2016 Form 10-K for a brief description of each portfolio segment.

The table below provides the composition of our total loan and lease portfolio:

Table 6 - Loan and Lease Portfolio Composition
(dollar amounts in millions)
	March 31, 2017				December 31, 2016				September 30, 2016				June 30, 2016				March 31, 2016
Ending Balances by Type:
Commercial:
Commercial and industrial	$	28,176	42	%	$	28,059	42	%	$	27,668	42	%	$	21,372	41	%	$	21,254	41	%
Commercial real estate:
Construction	1,107		2		1,446		2		1,414		2		856		2		939		2
Commercial	5,986		9		5,855		9		5,842		9		4,466		7		4,343		8
Commercial real estate	7,093		11		7,301		11		7,256		11		5,322		9		5,282		10
Total commercial	35,269		53		35,360		53		34,924		53		26,694		50		26,536		51
Consumer:
Automobile	11,155		17		10,969		16		10,791		16		10,381		20		9,920		19
Home equity	9,974		15		10,106		15		10,120		15		8,447		17		8,422		17
Residential mortgage	7,829		12		7,725		12		7,665		12		6,377		12		6,082		12
RV and marine finance	1,935		2		1,846		3		1,840		3		—		—		—		—
Other consumer	936		1		956		1		964		1		644		1		579		1
Total consumer	31,829		47		31,602		47		31,380		47		25,849		50		25,003		49
Total loans and leases	$	67,098	100	%	$	66,962	100	%	$	66,304	100	%	$	52,543	100	%	$	51,539	100	%

Our loan portfolio is composed of a managed mix of consumer and commercial credits. At the corporate level, we manage the overall credit exposure and portfolio composition in part via a credit concentration policy. The policy designates specific loan types, collateral types, and loan structures to be formally tracked and assigned maximum exposure limits as a percentage of capital. C&I lending by NAICS categories, specific limits for CRE project types, loans secured by residential real estate, shared national credit exposure, and designated high risk loan definitions represent examples of specifically tracked components of our concentration management process. There are no identified concentrations that exceed the assigned exposure

16

limit. Our concentration management policy is approved by the ROC of the Board and is one of the strategies used to ensure a high quality, well diversified portfolio that is consistent with our overall objective of maintaining an aggregate moderate-to-low risk profile. Changes to existing concentration limits require the approval of the ROC prior to implementation, incorporating specific information relating to the potential impact on the overall portfolio composition and performance metrics.

Commercial Credit

Refer to the “Commercial Credit” section of our 2016 Form 10-K for our commercial credit underwriting and on-going credit management processes.

Consumer Credit

Refer to the “Consumer Credit” section of our 2016 Form 10-K for our consumer credit underwriting and on-going credit management processes.

Credit Quality

(This section should be read in conjunction with Note 3 of the Notes to Unaudited Condensed Consolidated Financial Statements.)

We believe the most meaningful way to assess overall credit quality performance is through an analysis of credit quality performance ratios. This approach forms the basis of most of the discussion in the sections immediately following: NPAs and NALs, TDRs, ACL, and NCOs. In addition, we utilize delinquency rates, risk distribution and migration patterns, and product segmentation in the analysis of our credit quality performance.

Credit quality performance in the 2017 first quarter reflected continued overall positive results with stable delinquencies, and a 5%decline in NPAs from the prior quarter to $458 million. Net charge-offs decreased by $4 million from the prior quarter. Total NCOs were $39 million, or 0.24%, of average total loans and leases. The ACL to total loans and leases ratio increased by 4 basis point to 1.14%.

NPAs, NALs, AND TDRs

(This section should be read in conjunction with Note 3 of the Notes to Unaudited Condensed Consolidated Financial Statements and "Credit Quality" section of our 2016 Form 10-K.)

NPAs and NALs

Of the $246 million of CRE and C&I-related NALs at March 31, 2017, $165 million, or 67%, represented loans that were less than 30-days past due, demonstrating our continued commitment to proactive credit risk management. With the exception of residential mortgage loans guaranteed by government organizations which continue to accrue interest, first-lien loans secured by residential mortgage collateral are placed on nonaccrual status at 150-days past due. Junior-lien home equity loans are placed on nonaccrual status at the earlier of 120-days past due or when the related first-lien loan has been identified as nonaccrual. Automobile and other consumer loans are charged-off at 120-days past due.

The following table reflects period-end NALs and NPAs detail for each of the last five quarters:

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Table 7 - Nonaccrual Loans and Leases and Nonperforming Assets
(dollar amounts in thousands)
	March 31, 2017			December 31, 2016			September 30, 2016			June 30, 2016			March 31, 2016
Nonaccrual loans and leases (NALs):
Commercial and industrial	$	232,171		$	234,184		$	220,862		$	289,811		$	307,824
Commercial real estate	13,889			20,508			21,300			23,663			30,801
Automobile	4,881			5,766			4,777			5,049			7,598
Residential mortgage	80,686			90,502			88,155			85,174			90,303
RV and marine finance	106			245			96			—			—
Home equity	69,575			71,798			69,044			56,845			62,208
Other consumer	2			—			—			5			—
Total nonaccrual loans and leases	401,310			423,003			404,234			460,547			498,734
Other real estate:
Residential	31,786			30,932			34,421			26,653			23,175
Commercial	18,101			19,998			36,915			2,248			2,957
Total other real estate	49,887			50,930			71,336			28,901			26,132
Other NPAs (1)	6,910			6,968			—			376			—
Total nonperforming assets	$	458,107		$	480,901		$	475,570		$	489,824		$	524,866
Nonaccrual loans and leases as a % of total loans and leases	0.60		%	0.63		%	0.61		%	0.88		%	0.97		%
NPA ratio (2)	0.68			0.72			0.72			0.93			1.02
(NPA+90days)/(Loan+OREO)	0.87			0.91			0.92			1.12			1.22

(1) Other nonperforming assets includes certain impaired investment securities.

(2) Nonperforming assets divided by the sum of loans and leases, other real estate owned, and other NPAs.

2017 First Quarter versus 2016 Fourth Quarter

Total NPAs decreased by $23 million, or 5%, compared with December 31, 2016 primarily as a result of decreases in the CRE and residential portfolios, while other NPAs remained constant. The residential mortgage decline was a function of improved delinquencies partially as a result of the efforts by our Home Savers Group actively working with our customers.

TDR Loans

(This section should be read in conjunction with Note 3 of the Notes to Unaudited Condensed Consolidated Financial Statements and "TDR Loans" section of our 2016 Form 10-K.)

Over the past five quarters, the accruing component of the total TDR balance has been between 80% and 84%, as borrowers continue to make their monthly payments in accordance with the modified terms.  From a payment standpoint, over 80% of the $510 million of accruing TDRs secured by residential real estate (Residential mortgage and Home Equity in Table 8) are current on their required payments.  In addition, over 60% of the accruing pool have had no delinquency at all in the past 12 months. There is very limited migration from the accruing to non-accruing components, and virtually all of the charge-offs come from the non-accruing TDR balances.

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The table below presents our accruing and nonaccruing TDRs at period-end for each of the past five quarters:

Table 8 - Accruing and Nonaccruing Troubled Debt Restructured Loans
(dollar amounts in thousands)
	March 31, 2017		December 31, 2016		September 30, 2016		June 30, 2016		March 31, 2016
Troubled debt restructured loans—accruing:
Commercial and industrial	$	222,303	$	210,119	$	232,740	$	232,112	$	205,989
Commercial real estate	81,202		76,844		80,553		85,015		108,861
Automobile	27,968		26,382		27,843		25,892		25,856
Home equity	271,258		269,709		275,601		203,047		204,244
Residential mortgage	239,175		242,901		251,529		256,859		259,750
RV and marine finance	581		—		—		—		—
Other consumer	4,128		3,780		4,102		4,522		4,768
Total troubled debt restructured loans—accruing	846,615		829,735		872,368		807,447		809,468
Troubled debt restructured loans—nonaccruing:
Commercial and industrial	88,759		107,087		70,179		77,592		83,600
Commercial real estate	4,357		4,507		5,672		6,833		14,607
Automobile	4,763		4,579		4,437		4,907		7,407
Home equity	29,090		28,128		28,009		21,145		23,211
Residential mortgage	59,773		59,157		62,027		63,638		68,918
RV and marine finance	106		—		—		—		—
Other consumer	117		118		142		142		191
Total troubled debt restructured loans—nonaccruing	186,965		203,576		170,466		174,257		197,934
Total troubled debt restructured loans	$	1,033,580	$	1,033,311	$	1,042,834	$	981,704	$	1,007,402

ACL

(This section should be read in conjunction with Note 3 of the Notes to Unaudited Condensed Consolidated Financial Statements.)

Our total credit reserve is comprised of two different components, both of which in our judgment are appropriate to absorb credit losses inherent in our loan and lease portfolio: the ALLL and the AULC. Combined, these reserves comprise the total ACL. Our ACL Methodology Committee is responsible for developing the methodology, assumptions and estimates used in the calculation, as well as determining the appropriateness of the ACL. The ALLL represents the estimate of losses inherent in the loan portfolio at the reported date. Additions to the ALLL result from recording provision expense for the recognition of loan losses due to increased risk levels resulting from loan risk-rating downgrades. Reductions reflect charge-offs (net of recoveries), decreased risk levels resulting from loan risk-rating upgrades, or the sale of loans. The AULC is determined by applying the same quantitative reserve determination process to the unfunded portion of the loan exposures adjusted by an applicable funding expectation.

Loans originated for investment are stated at their principal amount outstanding adjusted for partial charge-offs, and net deferred loan fees and costs. Acquired loans are those purchased in the FirstMerit acquisition. These loans were recorded at estimated fair value at the acquisition date with no carryover of the related ALLL. The difference between acquired contractual balance and estimated fair value at acquisition date was recorded as a purchase premium or discount.

An ALLL for acquired loans is estimated using a methodology similar to that used for originated loans. The allowance determined for each acquired loan is compared to the remaining fair value adjustment for that loan. If the computed allowance is greater, the excess is added to the allowance through a provision for loan losses. If the computed allowance is less, no additional allowance is recognized.

Our ACL evaluation process includes the on-going assessment of credit quality metrics, and a comparison of certain ACL benchmarks to current performance.

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The table below reflects the allocation of our ACL among our various loan categories during each of the past five quarters:

Table 9 - Allocation of Allowance for Credit Losses (1)
(dollar amounts in thousands)
	March 31, 2017				December 31, 2016				September 30, 2016				June 30, 2016				March 31, 2016
Allowance for Credit Losses
Commercial
Commercial and industrial	$	380,504	42	%	$	355,424	42	%	$	333,101	42	%	$	323,465	41	%	$	320,367	41	%
Commercial real estate	99,804		11		95,667		11		98,694		11		101,042		9		102,074		10
Total commercial	480,308		53		451,091		53		431,795		53		424,507		50		422,441		51
Consumer
Automobile	46,402		17		47,970		16		42,584		16		50,531		20		48,032		19
Home equity	64,900		15		65,474		15		69,866		15		76,482		17		78,102		17
Residential mortgage	35,559		12		33,398		12		36,510		12		42,392		12		40,842		12
RV and marine finance	4,022		2		5,311		3		4,289		3		—		—		—		—
Other consumer	41,389		1		35,169		1		31,854		1		29,152		1		24,302		1
Total consumer	192,272		47		187,322		47		185,103		47		198,557		50		191,278		49
Total allowance for loan and lease losses	672,580		100	%	638,413		100	%	616,898		100	%	623,064		100	%	613,719		100	%
Allowance for unfunded loan commitments	91,838				97,879				88,433				73,748				75,325
Total allowance for credit losses	$	764,418			$	736,292			$	705,331			$	696,812			$	689,044
Total allowance for loan and leases losses as % of:
Total loans and leases			1.00	%			0.95	%			0.93	%			1.19	%			1.19	%
Nonaccrual loans and leases			168				151				153				135				123
Nonperforming assets			147				133				130				127				117
Total allowance for credit losses as % of:
Total loans and leases			1.14	%			1.10	%			1.06	%			1.33	%			1.34	%
Nonaccrual loans and leases			190				174				174				151				138
Nonperforming assets			167				153				148				142				131

(1) Percentages represent the percentage of each loan and lease category to total loans and leases.

2017 First Quarter versus 2016 Fourth Quarter

At March 31, 2017, the ALLL was $673 million, compared to $638 million at December 31, 2016. The $34 million, or 5%, increase in the ALLL is primarily driven by an increase in Criticized/Classified assets in the C&I portfolio, partially offset by improved delinquency performances in automobile, home equity, and RV and marine finance classes.

The ACL to total loans ratio of 1.14% at March 31, 2017, increased compared to 1.10% at December 31, 2016. Management believes the ratio is appropriate given the risk profile of our loan portfolio. We continue to focus on early identification of loans with changes in credit metrics and proactive action plans for these loans. Given the combination of these noted positive and negative factors, we believe that our ACL is appropriate and its coverage level is reflective of the quality of our portfolio and the current operating environment.

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NCOs

Any loan in any portfolio may be charged-off if a loss confirming event has occurred or in accordance with the policies described below, whichever is earlier. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure, or receipt of an asset valuation indicating a collateral deficiency where that asset is the sole source of repayment. Additionally, discharged, collateral dependent non-reaffirmed debt in Chapter 7 bankruptcy filings will result in a charge-off to estimated collateral value, less anticipated selling costs.

C&I and CRE loans are either charged-off or written down to net realizable value at 90-days past due with the exception of administrative small ticket lease delinquencies. Automobile loans, RV and marine finance and other consumer loans are generally charged-off at 120-days past due. First-lien and junior-lien home equity loans are charged-off to the estimated fair value of the collateral, less anticipated selling costs, at 150-days past due and 120-days past due, respectively. Residential mortgages are charged-off to the estimated fair value of the collateral, less anticipated selling costs, at 150-days past due.

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Table 10 - Quarterly Net Charge-off Analysis
(dollar amounts in thousands)
	Three months ended
	March 31,			December 31,			September 30,			June 30,			March 31,
	2017			2016			2016			2016			2016
Net charge-offs (recoveries) by loan and lease type:
Commercial:
Commercial and industrial	$	8,096		$	15,674		$	19,225		$	3,702		$	6,514
Commercial real estate:
Construction	(3,137		)	(1,332		)	(271		)	(377		)	(104		)
Commercial	895			(4,160		)	(2,427		)	(296		)	(17,372		)
Commercial real estate	(2,242		)	(5,492		)	(2,698		)	(673		)	(17,476		)
Total commercial	5,854			10,182			16,527			3,029			(10,962		)
Consumer:
Automobile	12,407			13,132			7,769			4,320			6,770
Home equity	1,662			1,621			2,624			1,078			3,681
Residential mortgage	2,595			1,673			1,728			776			1,647
RV and marine finance	2,363			2,182			106			—			—
Other consumer	14,557			14,734			11,311			7,552			7,416
Total consumer	33,584			33,342			23,538			13,726			19,514
Total net charge-offs	$	39,438		$	43,524		$	40,065		$	16,755		$	8,552
	Three months ended
	March 31,			December 31,			September 30,			June 30,			March 31,
	2017			2016			2016			2016			2016
Net charge-offs (recoveries)—annualized percentages:
Commercial:
Commercial and industrial	0.12		%	0.23		%	0.31		%	0.07		%	0.13		%
Commercial real estate:
Construction	(0.96		)	(0.38		)	(0.10		)	(0.17		)	(0.05		)
Commercial	0.06			(0.29		)	(0.19		)	(0.03		)	(1.62		)
Commercial real estate	(0.12		)	(0.30		)	(0.17		)	(0.05		)	(1.34		)
Total commercial	0.07			0.12			0.21			0.05			(0.17		)
Consumer:
Automobile	0.45			0.48			0.27			0.17			0.28
Home equity	0.07			0.06			0.11			0.05			0.17
Residential mortgage	0.13			0.09			0.10			0.05			0.11
RV and marine finance	0.50			0.47			0.05			—			—
Other consumer	6.33			6.14			5.54			4.93			5.17
Total consumer	0.42			0.42			0.32			0.22			0.32
Net charge-offs as a % of average loans	0.24		%	0.26		%	0.26		%	0.13		%	0.07		%

In assessing NCO trends, it is helpful to understand the process of how commercial loans are treated as they deteriorate over time. The ALLL established is consistent with the level of risk associated with the original underwriting. As a part of our normal portfolio management process for commercial loans, the loan is periodically reviewed and the ALLL is increased or decreased based on the updated risk rating. In certain cases, the standard ALLL is determined to not be appropriate, and a specific reserve is established based on the projected cash flow or collateral value of the specific loan. Charge-offs, if necessary, are generally recognized in a period after the specific ALLL was established. If the previously established ALLL exceeds the estimated loss on the loan, a reduction in the overall level of the ALLL could be recognized. Consumer loans are treated in

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much the same manner as commercial loans, with increasing reserve factors applied based on the risk characteristics of the loan, although specific reserves are not identified for consumer loans. In summary, if loan quality deteriorates, the typical credit sequence would be periods of reserve building, followed by periods of higher NCOs as the previously established ALLL is utilized. Additionally, an increase in the ALLL either precedes or is in conjunction with increases in NALs. When a loan is classified as NAL, it is evaluated for specific ALLL or charge-off. As a result, an increase in NALs does not necessarily result in an increase in the ALLL or an expectation of higher future NCOs.

2017 First Quarter versus 2016 Fourth Quarter

NCOs were an annualized 0.24% of average loans and leases in the current quarter, a decrease from 0.26% in the 2016 fourth quarter, still below our long-term expectation of 0.35% - 0.55%. Commercial charge-offs were positively impacted by continued recoveries in both the C&I and CRE portfolio and broader continued successful workout strategies, while consumer charge-offs remain within our expected range and were relatively flat compared to the prior period. Given the low level of C&I and CRE NCO’s, we expect some volatility on a quarter-to-quarter comparison basis.

Market Risk

Market risk refers to potential losses arising from changes in interest rates, foreign exchange rates, equity prices and commodity prices, including the correlation among these factors and their volatility. When the value of an instrument is tied to such external factors, the holder faces market risk. We are primarily exposed to interest rate risk as a result of offering a wide array of financial products to our customers and secondarily to price risk from trading securities, securities owned by our broker-dealer subsidiary, foreign exchange positions, equity investments, and investments in securities backed by mortgage loans.

Interest Rate Risk

(This section should be read in conjunction with the “Market Risk” section of our 2016 Form 10-K for our on-going market risk management processes.)

Table 11 - Net Interest Income at Risk
	Net Interest Income at Risk (%)
Basis point change scenario	-25		+100		+200
Board policy limits	N/A		-2.0	%	-4.0	%
March 31, 2017	-0.7	%	3.0	%	5.9	%
December 31, 2016	-1.0	%	2.7	%	5.6	%

The NII at Risk results included in the table above reflect the analysis used monthly by management. It models gradual -25, +100 and +200 basis point parallel shifts in market interest rates, implied by the forward yield curve over the next twelve months. Due to the current low level of short-term interest rates, the analysis reflects a declining interest rate scenario of 25 basis points, the point at which many assets and liabilities reach zero percent.

Our NII at Risk is within our board of director's policy limits for the +100 and +200 basis point scenarios. There is no policy limit for the -25 basis point scenario. The NII at Risk reported shows that the balance sheet is asset sensitive at March 31, 2017, reflecting a slight increase from December 31, 2016.

Table 12 - Economic Value of Equity at Risk
	Economic Value of Equity at Risk (%)
Basis point change scenario	-25		+100		+200
Board policy limits	N/A		-5.0	%	-12.0	%
March 31, 2017	-1.1	%	3.0	%	4.3	%
December 31, 2016	-0.6	%	0.9	%	0.2	%

The EVE results included in the table above reflect the analysis used monthly by management. It models immediate -25, +100 and +200 basis point parallel shifts in market interest rates. Due to the current low level of short-term interest rates, the analysis reflects a declining interest rate scenario of 25 basis points, the point at which deposit costs reach zero percent.

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We are within our board of director's policy limits for the +100 and +200 basis point scenarios. There is no policy limit for the -25 basis point scenario. The EVE depicts a moderate level of long-term interest rate risk, which indicates the balance sheet is positioned favorably for rising interest rates.

MSRs

(This section should be read in conjunction with Note 6 of Notes to Unaudited Condensed Consolidated Financial Statements.)

At March 31, 2017, we had a total of $191 million of capitalized MSRs representing the right to service $19.1 billion in mortgage loans. Of this $191 million, $13 million was recorded using the fair value method and $178 million was recorded using the amortization method.

MSR fair values are sensitive to movements in interest rates as expected future net servicing income depends on the projected outstanding principal balances of the underlying loans, which can be reduced by prepayments. Prepayments usually increase when mortgage interest rates decline and decrease when mortgage interest rates rise. We have employed hedging strategies to reduce the risk of MSR fair value changes or impairment. However, volatile changes in interest rates can diminish the effectiveness of these economic hedges. We report MSR fair value adjustments net of hedge-related trading activity in the mortgage banking income category of noninterest income. Changes in fair value between reporting dates are recorded as an increase or a decrease in mortgage banking income.

MSRs recorded using the amortization method generally relate to loans originated with historically low interest rates, resulting in a lower probability of prepayments and, ultimately, impairment. MSR assets are included in servicing rights in the Unaudited Condensed Consolidated Financial Statements.

Price Risk

Price risk represents the risk of loss arising from adverse movements in the prices of financial instruments that are carried at fair value and are subject to fair value accounting. We have price risk from trading securities, securities owned by our broker-dealer subsidiary, foreign exchange positions, equity investments, and investments in securities backed by mortgage loans. We have established loss limits on the trading portfolio, on the amount of foreign exchange exposure that can be maintained, and on the amount of marketable equity securities that can be held.

Liquidity Risk

(This section should be read in conjunction with the “Liquidity Risk” section of our 2016 Form 10-K for our on-going liquidity risk management processes.)

Our primary source of liquidity is our core deposit base. Core deposits comprised approximately 95% of total deposits at March 31, 2017. We also have available unused wholesale sources of liquidity, including advances from the FHLB of Cincinnati, issuance through dealers in the capital markets, and access to certificates of deposit issued through brokers. Liquidity is further provided by unencumbered, or unpledged, investment securities that totaled $15.1 billion as of March 31, 2017. The treasury department also prepares a contingency funding plan that details the potential erosion of funds in the event of a systemic financial market crisis or institutional-specific stress. An example of an institution specific event would be a downgrade in our public credit rating by a rating agency due to factors such as deterioration in asset quality, a large charge to earnings, a decline in profitability or other financial measures, or a significant merger or acquisition. Examples of systemic events unrelated to us that could have an effect on our access to liquidity would be terrorism or war, natural disasters, political events, or the default or bankruptcy of a major corporation, mutual fund or hedge fund. Similarly, market speculation or rumors about us, or the banking industry in general, may adversely affect the cost and availability of normal funding sources. The liquidity contingency plan therefore outlines the process for addressing a liquidity crisis. The plan provides for an evaluation of funding sources under various market conditions. It also assigns specific roles and responsibilities for effectively managing liquidity through a problem period. Please see the Liquidity Risk section in Item 1A of our 2016 Form 10-K for more details.

Bank Liquidity and Sources of Funding

Our primary sources of funding for the Bank are retail and commercial core deposits. At March 31, 2017, these core deposits funded 73% of total assets (109% of total loans). Other sources of liquidity include non-core deposits, FHLB advances, wholesale debt instruments, and securitizations. Demand deposit overdrafts that have been reclassified as loan balances were $18 million and $23 million at March 31, 2017 and December 31, 2016, respectively.

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The following tables reflect deposit composition and short-term borrowings detail for each of the last five quarters:

Table 13 - Deposit Composition
(dollar amounts in millions)
	March 31,				December 31,				September 30,				June 30,				March 31,
	2017				2016				2016				2016				2016
By Type:
Demand deposits—noninterest-bearing	$	21,489	28	%	$	22,836	30	%	$	23,426	30	%	$	16,324	30	%	$	16,571	30	%
Demand deposits—interest-bearing	18,618		24		15,676		21		15,730		20		8,412		15		8,174		15
Money market deposits	18,664		24		18,407		24		18,604		24		19,480		34		19,844		35
Savings and other domestic deposits	12,043		16		11,975		16		12,418		16		5,341		10		5,423		10
Core certificates of deposit	2,188		3		2,535		3		2,724		4		1,866		4		2,123		4
Total core deposits:	73,002		95		71,429		94		72,902		94		51,423		93		52,135		94
Other domestic deposits of $250,000 or more	524		1		394		1		391		1		380		1		424		—
Brokered deposits and negotiable CDs	3,897		4		3,784		5		3,972		5		3,017		6		2,890		5
Deposits in foreign offices	—		—		—		—		140		—		223		—		180		—
Total deposits	$	77,423	100	%	$	75,608	100	%	$	77,405	100	%	$	55,043	100	%	$	55,629	100	%
Total core deposits:
Commercial	$	32,963	45	%	$	31,887	45	%	$	32,936	45	%	$	24,308	47	%	$	24,543	47	%
Consumer	40,039		55		39,542		55		39,966		55		27,115		53		27,592		53
Total core deposits	$	73,002	100	%	$	71,429	100	%	$	72,902	100	%	$	51,423	100	%	$	52,135	100	%

Table 14 - Federal Funds Purchased and Repurchase Agreements
(dollar amounts in millions)
	March 31,			December 31,			September 30,			June 30,			March 31,
	2017			2016			2016			2016			2016
Balance at period-end
Federal Funds purchased and securities sold under agreements to repurchase	$	837		$	1,248		$	1,537		$	149		$	204
Federal Home Loan Bank advances	400			2,425			600			1,800			250
Other short-term borrowings	26			20			11			8			18
Weighted average interest rate at period-end
Federal Funds purchased and securities sold under agreements to repurchase	0.01		%	0.17		%	0.18		%	0.05		%	0.04		%
Federal Home Loan Bank advances	0.73			0.16			0.40			0.42			0.41
Other short-term borrowings	1.54			2.28			3.03			4.19			2.13
Maximum amount outstanding at month-end during the period
Federal Funds purchased and securities sold under agreements to repurchase	$	1,020		$	1,444		$	1,537		$	258		$	401
Federal Home Loan Bank advances	3,800			2,425			600			1,800			1,575
Other short-term borrowings	32			64			34			21			20
Average amount outstanding during the period

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Federal Funds purchased and securities sold under agreements to repurchase	$	702		$	1,043		$	618		$	515		$	582
Federal Home Loan Bank advances	3,069			1,557			668			504			553
Other short-term borrowings	21			28			20			13			9
Weighted average interest rate during the period
Federal Funds purchased and securities sold under agreements to repurchase	0.02		%	0.14		%	0.07		%	0.25		%	0.18		%
Federal Home Loan Bank advances	0.18			0.44			0.43			0.42			0.40
Other short-term borrowings	1.49			2.86			2.53			1.81			3.69

The Bank maintains borrowing capacity at the FHLB and the Federal Reserve Bank Discount Window. The Bank does not consider borrowing capacity from the Federal Reserve Bank Discount Window as a primary source of liquidity. Total loans and securities pledged to the Federal Reserve Discount Window and the FHLB are $29.3 billion and $19.7 billion at March 31, 2017 and December 31, 2016, respectively.

During the first quarter, the Bank issued $1 billion of senior notes. For further information related to debt issuances, please see Note 7 of Notes to Unaudited Condensed Consolidated Financial Statements.

At March 31, 2017, total wholesale funding was $15.0 billion, a decrease from $16.2 billion at December 31, 2016. The decrease from prior year-end primarily relates to a decrease in short-term borrowings.

Liquidity Coverage Ratio

On September 3, 2014, the U.S. banking regulators adopted a final LCR for internationally active banking organizations, generally those with $250 billion or more in total assets, and a Modified LCR rule for banking organizations, similar to Huntington, with $50 billion or more in total assets that are not internationally active banking organizations. The LCR is designed to promote the short-term resilience of the liquidity risk profile of banks to which it applies. The Modified LCR requires Huntington to maintain HQLA to meet its net cash outflows over a prospective 30 calendar-day period, which takes into account the potential impact of idiosyncratic and market-wide shocks. The Modified LCR transition period began on January 1, 2016, with Huntington required to maintain HQLA equal to 90 percent of the stated requirement. The ratio increased to 100 percent on January 1, 2017. At March 31, 2017, Huntington was in compliance with the Modified LCR requirement.

Parent Company Liquidity

The parent company’s funding requirements consist primarily of dividends to shareholders, debt service, income taxes, operating expenses, funding of nonbank subsidiaries, repurchases of our stock, and acquisitions. The parent company obtains funding to meet obligations from dividends and interest received from the Bank, interest and dividends received from direct subsidiaries, net taxes collected from subsidiaries included in the federal consolidated tax return, fees for services provided to subsidiaries, and the issuance of debt securities.

At both March 31, 2017 and December 31, 2016, the parent company had $1.8 billion in cash and cash equivalents.

On April 18, 2017, the board of directors declared a quarterly common stock cash dividend of $0.08 per common share. The dividend is payable on July 3, 2017, to shareholders of record on June 19, 2017. Based on the current quarterly dividend of $0.08 per common share, cash demands required for common stock dividends are estimated to be approximately $87 million per quarter. On April 18, 2017, the board of directors declared a quarterly Series A, Series B, Series C, and Series D Preferred Stock dividend payable on July 17, 2017 to shareholders of record on July 1, 2017. Based on the current dividend, cash demands required for Series A, Series B, Series C, and Series D Preferred Stock are estimated to be approximately $8 million, $0.3 million, $1.5 million, and $9 million per quarter, respectively.

During the first quarter, the Bank returned capital totaling $174 million to the holding company. The Bank declared a return of capital to the holding company of $225 million payable in the 2017second quarter. To meet any additional liquidity needs, the parent company may issue debt or equity securities from time to time.

Off-Balance Sheet Arrangements

In the normal course of business, we enter into various off-balance sheet arrangements. These arrangements include commitments to extend credit (See Note 14), interest rate swaps (See Note 12), financial guarantees contained in standby letters-of-credit issued by the Bank (See Note 14), and commitments by the Bank to sell mortgage loans (See Note 14).

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Operational Risk

Operational risk is the risk of loss due to human error; inadequate or failed internal systems and controls, including the use of financial or other quantitative methodologies that may not adequately predict future results; violations of, or noncompliance with, laws, rules, regulations, prescribed practices, or ethical standards; and external influences such as market conditions, fraudulent activities, disasters, and security risks. We continuously strive to strengthen our system of internal controls to ensure compliance with laws, rules, and regulations, and to improve the oversight of our operational risk. We actively and continuously monitor cyber-attacks such as attempts related to online deception and loss of sensitive customer data. We evaluate internal systems, processes and controls to mitigate loss from cyber-attacks and, to date, have not experienced any material losses.

Our objective for managing cyber security risk is to avoid or minimize the impacts of external threat events or other efforts to penetrate our systems. We work to achieve this objective by hardening networks and systems against attack, and by diligently managing visibility and monitoring controls within our data and communications environment to recognize events and respond before the attacker has the opportunity to plan and execute on its own goals. To this end we employ a set of defense in-depth strategies, which include efforts to make us less attractive as a target and less vulnerable to threats, while investing in threat analytic capabilities for rapid detection and response. Potential concerns related to cyber security may be escalated to our board-level Technology Committee, as appropriate. As a complement to the overall cyber security risk management, we use a number of internal training methods, both formally through mandatory courses and informally through written communications and other updates. Internal policies and procedures have been implemented to encourage the reporting of potential phishing attacks or other security risks. We also use third-party services to test the effectiveness of our cyber security risk management framework, and any such third parties are required to comply with our policies regarding information security and confidentiality.

To mitigate operational risks, we have a senior management Operational Risk Committee and a senior management Legal, Regulatory, and Compliance Committee. The responsibilities of these committees, among other duties, include establishing and maintaining management information systems to monitor material risks and to identify potential concerns, risks, or trends that may have a significant impact and ensuring that recommendations are developed to address the identified issues. In addition, we have a senior management Model Risk Oversight Committee that is responsible for policies and procedures describing how model risk is evaluated and managed and the application of the governance process to implement these practices throughout the enterprise. These committees report any significant findings and recommendations to the Risk Management Committee. Potential concerns may be escalated to our ROC, as appropriate.

The FirstMerit integration was inherently large and complex. Our objective for managing execution risk was to minimize impacts to daily operations. We established an Integration Management Office led by senior management. Responsibilities included central management, reporting, and escalation of key integration deliverables. In addition, a board level Integration Governance Committee was established to assist in the oversight of the integration of people, systems, and processes of FirstMerit with Huntington. While the systems' conversion is now largely completed, continued oversight will occur until all converted systems are fully decommissioned.

The goal of this framework is to implement effective operational risk techniques and strategies, minimize operational fraud, and legal losses; minimize the impact of inadequately designed models and enhance our overall performance.

Compliance Risk

Financial institutions are subject to many laws, rules, and regulations at both the federal and state levels. These broad-based laws, rules, and regulations include, but are not limited to, expectations relating to anti-money laundering, lending limits, client privacy, fair lending, prohibitions against unfair, deceptive or abusive acts or practices, protections for military members as they enter active duty, and community reinvestment. Additionally, the volume and complexity of recent regulatory changes have increased our overall compliance risk. As such, we utilize various resources to help ensure expectations are met, including a team of compliance experts dedicated to ensuring our conformance with all applicable laws, rules, and regulations. Our colleagues receive training for several broad-based laws and regulations including, but not limited to, anti-money laundering and customer privacy. Additionally, colleagues engaged in lending activities receive training for laws and regulations related to flood disaster protection, equal credit opportunity, fair lending, and/or other courses related to the extension of credit. We set a high standard of expectation for adherence to compliance management and seek to continuously enhance our performance.

Capital

Both regulatory capital and shareholders’ equity are managed at the Bank and on a consolidated basis. We have an active program for managing capital and maintain a comprehensive process for assessing the Company’s overall capital adequacy. We believe our current levels of both regulatory capital and shareholders’ equity are adequate.

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The following table presents certain regulatory capital data at both the consolidated and Bank levels for each of the past five quarters:

Table 15 - Regulatory Capital Data
(dollar amounts in millions)
		Basel III
		March 31, 2017			December 31, 2016			September 30, 2016			June 30, 2016			March 31, 2016
Total risk-weighted assets	Consolidated	$	77,559		$	78,263		$	80,513		$	60,720		$	59,798
	Bank	77,534			78,242			80,345			60,673			59,723
Common equity tier I risk-based capital	Consolidated	7,551			7,486			7,315			5,949			5,821
	Bank	8,146			8,153			8,019			5,578			5,518
Tier 1 risk-based capital	Consolidated	8,619			8,547			8,371			6,905			6,574
	Bank	9,015			9,086			8,661			6,221			5,672
Tier 2 risk-based capital	Consolidated	1,663			1,668			1,741			1,287			1,300
	Bank	1,745			1,732			1,600			1,331			1,119
Total risk-based capital	Consolidated	10,282			10,215			10,112			8,193			7,874
	Bank	10,760			10,818			10261			7,552			6,791
Tier 1 leverage ratio	Consolidated	8.76		%	8.70		%	9.89		%	9.55		%	9.29		%
	Bank	9.18			9.29			8.61			8.61			8.02
Common equity tier I risk-based capital ratio	Consolidated	9.74			9.56			9.80			9.80			9.73
	Bank	10.51			10.42			9.19			9.19			9.24
Tier 1 risk-based capital ratio	Consolidated	11.11			10.92			10.40			11.37			10.99
	Bank	11.63			11.61			10.25			10.25			9.50
Total risk-based capital ratio	Consolidated	13.26			13.05			12.56			13.49			13.17
	Bank	13.88			13.83			12.45			12.45			11.37

At March 31, 2017, we maintained Basel III transitional capital ratios in excess of the well-capitalized standards established by the FRB.

Shareholders’ Equity

We generate shareholders’ equity primarily through the retention of earnings, net of dividends and share repurchases. Other potential sources of shareholders’ equity include issuances of common and preferred stock. Our objective is to maintain capital at an amount commensurate with our risk profile and risk tolerance objectives, to meet both regulatory and market expectations, and to provide the flexibility needed for future growth and business opportunities.

Shareholders’ equity totaled $10.4 billion at March 31, 2017, an increase of $0.1 billion when compared with December 31, 2016.

On June 29, 2016, we announced that the Federal Reserve did not object to our proposed capital actions included in our capital plan submitted to the Federal Reserve in April 2016 as part of the 2016 Comprehensive Capital Analysis and Review (“CCAR”). These actions included a 14% increase in the quarterly dividend per common share to $0.08, starting in the fourth quarter of 2016. Our capital plan also included the issuance of capital in connection with the acquisition of FirstMerit Corporation and continues the previously announced suspension of our share repurchase program.

Dividends

We consider disciplined capital management as a key objective, with dividends representing one component. Our strong capital ratios and expectations for continued earnings growth positions us to continue to actively explore additional capital management opportunities.

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Fair Value

At the end of each quarter, we assess the valuation hierarchy for each asset or liability measured. As necessary, assets or liabilities may be transferred within hierarchy levels due to changes in availability of observable market inputs at the measurement date. The fair values measured at each level of the fair value hierarchy, additional discussion regarding fair value measurements, and a brief description of how fair value is determined for categories that have unobservable inputs, can be found in Note 11 of the Notes to Unaudited Condensed Consolidated Financial Statements.

BUSINESS SEGMENT DISCUSSION

Overview

Our business segments are based on our internally-aligned segment leadership structure, which is how we monitor results and assess performance. We have five major business segments: Consumer and Business Banking, Commercial Banking, Commercial Real Estate and Vehicle Finance(CREVF), Regional Banking and The Huntington Private Client Group(RBHPCG), and Home Lending. A Treasury / Other function includes technology and operations, other unallocated assets, liabilities, revenue, and expense.

Business segment results are determined based upon our management reporting system, which assigns balance sheet and income statement items to each of the business segments. The process is designed around our organizational and management structure and, accordingly, the results derived are not necessarily comparable with similar information published by other financial institutions.

We recently announced a change within our executive leadership team, which will become effective during the 2017 second quarter. As a result, management is currently evaluating the business segment structure which may impact how we monitor future results and assess performance.

Revenue Sharing

Revenue is recorded in the business segment responsible for the related product or service. Fee sharing is recorded to allocate portions of such revenue to other business segments involved in selling to, or providing service to, customers. Results of operations for the business segments reflect these fee sharing allocations.

Expense Allocation

The management accounting process that develops the business segment reporting utilizes various estimates and allocation methodologies to measure the performance of the business segments. Expenses are allocated to business segments using a two-phase approach. The first phase consists of measuring and assigning unit costs (activity-based costs) to activities related to product origination and servicing. These activity-based costs are then extended, based on volumes, with the resulting amount allocated to business segments that own the related products. The second phase consists of the allocation of overhead costs to all five business segments from Treasury / Other. We utilize a full-allocation methodology, where all Treasury / Other expenses, except reported Significant Items, and a small amount of other residual unallocated expenses, are allocated to the five business segments.

Funds Transfer Pricing (FTP)

We use an active and centralized FTP methodology to attribute appropriate income to the business segments. The intent of the FTP methodology is to transfer interest rate risk from the business segments by providing matched duration funding of assets and liabilities. The result is to centralize the financial impact, management, and reporting of interest rate risk in the Treasury / Other function where it can be centrally monitored and managed. The Treasury / Other function charges (credits) an internal cost of funds for assets held in (or pays for funding provided by) each business segment. The FTP rate is based on prevailing market interest rates for comparable duration assets (or liabilities).

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Net Income by Business Segment

The segregation of net income by business segment for the three-month periods ending March 31, 2017 and March 31, 2016 is presented in the following table:

Table 16 - Net Income (Loss) by Business Segment
(dollar amounts in thousands)
	Three months ended March 31,
	2017			2016
Consumer and Business Banking	$	87,691		$	60,117
Commercial Banking	69,513			23,541
CREVF	58,912			51,578
RBHPCG	18,126			12,910
Home Lending	1,725			1,410
Treasury / Other	(27,873		)	21,758
Net income	$	208,094		$	171,314

Treasury / Other

The Treasury / Other function includes revenue and expense related to assets, liabilities, and equity not directly assigned or allocated to one of the five business segments. Other assets include investment securities and bank owned life insurance. The financial impact associated with our FTP methodology, as described above, is also included.

Net interest income includes the impact of administering our investment securities portfolios and the net impact of derivatives used to hedge interest rate sensitivity. Noninterest income includes miscellaneous fee income not allocated to other business segments, such as bank owned life insurance income and any investment security and trading asset gains or losses. Noninterest expense includes $73 million of FirstMerit acquisition-related expense in the current period, certain corporate administrative, and other miscellaneous expenses not allocated to other business segments. The provision for income taxes for the business segments is calculated at a statutory 35% tax rate, though our overall effective tax rate is lower. As a result, Treasury / Other reflects a credit for income taxes representing the difference between the lower actual effective tax rate and the statutory tax rate used to allocate income taxes to the business segments.

Consumer and Business Banking
Table 17 - Key Performance Indicators for Consumer and Business Banking
(dollar amounts in thousands unless otherwise noted)
	Three months ended March 31,						Change
	2017			2016			Amount			Percent
Net interest income	$	393,496		$	264,529		$	128,967		49	%
Provision for credit losses	31,294			12,177			19,117			157
Noninterest income	146,790			120,257			26,533			22
Noninterest expense	374,083			280,121			93,962			34
Provision for income taxes	47,218			32,371			14,847			46
Net income	$	87,691		$	60,117		$	27,574		46	%
Number of employees (average full-time equivalent)	7,848			5,742			2,106			37	%
Total average assets (in millions)	$	21,707		$	15,751		$	5,956		38
Total average loans/leases (in millions)	17,611			13,614			3,997			29
Total average deposits (in millions)	44,636			30,834			13,802			45
Net interest margin	3.68		%	3.54		%	0.14		%	4
NCOs	$	22,649		$	13,891		$	8,758		63
NCOs as a % of average loans and leases	0.51		%	0.41		%	0.10		%	24

2017 First Three Months vs. 2016 First Three Months

Consumer and Business Banking reported net income of $88 million in the first three-month period of 2017, an increase of $28 million, or 46%, compared to the year-ago period. Results were impacted by the FirstMerit acquisition. Segment net interest income increased $129 million, or 49%, primarily due to an increase in total average loans and deposits. The provision

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for credit losses increased $19 million, or 157%, driven by an increase in the allowance as well as increased NCOs. Noninterest income increased $27 million, or 22%, due to an increase in card and payment processing income and service charges on deposit accounts, which were driven by higher debit card-related transaction volumes and an increase in the number of households. In addition, SBA sales and servicing rights gains contributed to improved noninterest income. Noninterest expense increased $94 million, or 34%, due to an increase in personnel expense related to the addition of FirstMerit branches and colleagues, and an increase in allocated noninterest expense.

Commercial Banking
Table 18 - Key Performance Indicators for Commercial Banking
(dollar amounts in thousands unless otherwise noted)
	Three months ended March 31,						Change
	2017			2016			Amount			Percent
Net interest income	$	174,563		$	105,350		$	69,213		66	%
Provision for credit losses	22,137			35,054			(12,917		)	(37	)
Noninterest income	69,487			58,916			10,571			18
Noninterest expense	114,970			92,995			21,975			24
Provision for income taxes	37,430			12,676			24,754			195
Net income	$	69,513		$	23,541		$	45,972		195	%
Number of employees (average full-time equivalent)	1,459			1,215			244			20	%
Total average assets (in millions)	$	24,206		$	17,313		$	6,893		40
Total average loans/leases (in millions)	19,202			13,535			5,667			42
Total average deposits (in millions)	18,731			14,278			4,453			31
Net interest margin	3.42		%	2.90		%	0.52		%	18
NCOs	$	2,301		$	17,108		$	(14,807	)	(87	)
NCOs as a % of average loans and leases	0.05		%	0.51		%	(0.46		)%	(90	)

2017 First Three Months vs. 2016 First Three Months

Commercial Banking reported net income of $70 million in the first three-month period of 2017, an increase of $46 million, or 195%, compared to the year-ago period. Results were impacted by the FirstMerit acquisition. Segment net interest income increased $69 million, or 66%, primarily due to an increase in both average earning assets and deposits. In addition, the NIM increased 52 basis points as a result of the recapture of interest income on nonaccrual loans and a significant mix shift to lower cost deposits as well as the impact of purchase accounting. The provision for credit losses decreased $13 million, or 37%, primarily from a reduction in NCOs. Noninterest income increased $11 million, or 18%, primarily due to an increase in loan commitment, other fees and treasury management related revenue. Noninterest expense increased $22 million, or 24%, primarily due to an increase in personnel expense, allocated noninterest expense, and operating lease expense intangible amortization.

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Commercial Real Estate and Vehicle Finance
Table 19 - Commercial Real Estate and Vehicle Finance
(dollar amounts in thousands unless otherwise noted)
	Three months ended March 31,						Change
	2017			2016			Amount			Percent
Net interest income	$	139,333		$	95,597		$	43,736		46	%
Provision (reduction in allowance) for credit losses	9,549			(16,649		)	26,198			N.R.
Noninterest income	11,209			7,311			3,898			53
Noninterest expense	50,359			40,206			10,153			25
Provision for income taxes	31,722			27,773			3,949			14
Net income	$	58,912		$	51,578		$	7,334		14	%
Number of employees (average full-time equivalent)	396			309			87			28	%
Total average assets (in millions)	$	23,715		$	18,029		$	5,686		32
Total average loans/leases (in millions)	22,620			17,022			5,598			33
Total average deposits (in millions)	1,800			1,637			163			10
Net interest margin	2.47		%	2.21		%	0.26		%	12
NCOs	$	12,901		$	(21,054	)	$	33,955		N.R.
NCOs as a % of average loans and leases	0.23		%	(0.49		)%	0.72		%	N.R.

N.R.—Not relevant.

2017 First Three Months vs. 2016 First Three Months

CREVF reported net income of $59 million in the first three-month period of 2017, an increase of $7 million, or 14%, compared to the year-ago period. Results were impacted by the FirstMerit acquisition as well as a higher provision for credit losses reflecting significant commercial real estate recoveries in the year ago quarter. Segment net interest income increased $44 million or 46%, due to both higher loan balances and a 26 basis point increase in the net interest margin reflecting the purchase accounting impact of the acquired loan portfolios. Noninterest income increased $4 million, or 53%, primarily due to an increase in unrealized gains on various equity investments associated with mezzanine lending related activities. Noninterest expense increased $10 million, or 25%, primarily due to an increase in personnel costs and other allocated costs attributed to higher production and portfolio balance levels.

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Regional Banking and The Huntington Private Client Group
Table 20 - Key Performance Indicators for Regional Banking and The Huntington Private Client Group
(dollar amounts in thousands unless otherwise noted)
	Three months ended March 31,						Change
	2017			2016			Amount			Percent
Net interest income	$	46,649		$	34,923		$	11,726		34	%
Provision (reduction in allowance) for credit losses	2,771			(725		)	3,496			(482	)
Noninterest income	36,170			24,717			11,453			46
Noninterest expense	52,162			40,503			11,659			29
Provision for income taxes	9,760			6,952			2,808			40
Net income	$	18,126		$	12,910		$	5,216		40	%
Number of employees (average full-time equivalent)	689			577			112			19	%
Total average assets (in millions)	$	5,230		$	4,111		$	1,119		27
Total average loans/leases (in millions)	4,640			3,821			819			21
Total average deposits (in millions)	5,918			4,719			1,199			25
Net interest margin	3.29		%	2.98		%	0.31		%	10
NCOs	$	783		$	(2,549	)	$	3,332		N.R.
NCOs as a % of average loans and leases	0.07		%	(0.27		)%	0.34		%	N.R.
Total assets under management (in billions)—eop (1)	$	18.4		$	16.9		$	1.5		9
Total trust assets (in billions)—eop (1)	100.6			91.3			9.3			10

N.R.—Not relevant.

eop—End of Period.

(1) Includes assets associated with FirstMerit.

2017 First Three Months vs. 2016 First Three Months

RBHPCG reported net income of $18 million in the first three-month period of 2017, an increase of $5 million, or 40%, compared to the year-ago period. Results were impacted by the FirstMerit acquisition. Net interest income increased $12 million, or 34%, due to an increase in average total loans and deposits combined with a 31 basis point increase in net interest margin driven by the impact of purchase accounting. The provision for credit losses increased $3 million, due to lower recoveries in the current period. Noninterest income increased $11 million, or 46%, primarily due to increased trust and investment management revenue related to the increase in trust assets and assets under management. Noninterest expense increased $12 million, or 29%, as a result of increased personnel expenses, amortization of intangibles, and allocated product costs resulting from the FirstMerit acquisition.

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Home Lending
Table 21 - Key Performance Indicators for Home Lending
(dollar amounts in thousands unless otherwise noted)
	Three months ended March 31,						Change
	2017			2016			Amount			Percent
Net interest income	$	15,215		$	12,985		$	2,230		17	%
Provision (reduction in allowance) for credit losses	1,887			(2,274		)	4,161			N.R.
Noninterest income	23,981			11,503			12,478			108
Noninterest expense	34,655			24,593			10,062			41
Provision for income taxes	929			759			170			22
Net income	$	1,725		$	1,410		$	315		22
Number of employees (average full-time equivalent)	1,119			872			247			28	%
Total average assets (in millions)	$	3,447		$	3,042		$	405		13
Total average loans/leases (in millions)	2,822			2,533			289			11
Total average deposits (in millions)	579			308			271			88
Net interest margin	1.92		%	1.83		%	0.09		%	5
NCOs	$	802		$	1,155		$	(353	)	(31	)
NCOs as a % of average loans and leases	0.11		%	0.18		%	(0.07		)%	(39	)
Mortgage banking origination volume (in millions)	$	1,266		$	936		$	330		35

2017 First Three Months vs. 2016 First Three Months

Home Lending reported net income of $2 million in the first three-month period of 2017, an increase compared to the year-ago period. Results were impacted by the FirstMerit acquisition. Net interest income increased $2 million, or 17%, which primarily reflects higher residential mortgage balances and lower funding costs. The provision for credit losses increased $4 million, primarily due to an increase in the allowance in the residential mortgage portfolio. Noninterest income increased by $12 million, or 108%, primarily due to favorable net MSR hedge-related activities and higher origination volume. Noninterest expense increased $10 million, or 41%, primarily due to higher personnel costs related to the FirstMerit acquisition, higher origination volume and higher allocated expenses.

ADDITIONAL DISCLOSURES

Forward-Looking Statements

This report, including MD&A, contains certain forward-looking statements, including, but not limited to, certain plans, expectations, goals, projections, and statements, which are not historical facts and are subject to numerous assumptions, risks, and uncertainties. Statements that do not describe historical or current facts, including statements about beliefs and expectations, are forward-looking statements. Forward-looking statements may be identified by words such as expect, anticipate, believe, intend, estimate, plan, target, goal, or similar expressions, or future or conditional verbs such as will, may, might, should, would, could, or similar variations. The forward-looking statements are intended to be subject to the safe harbor provided by Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and the Private Securities Litigation Reform Act of 1995.

While there is no assurance that any list of risks and uncertainties or risk factors is complete, below are certain factors which could cause actual results to differ materially from those contained or implied in the forward-looking statements: changes in general economic, political, or industry conditions; uncertainty in U.S. fiscal and monetary policy, including the interest rate policies of the Federal Reserve Board; volatility and disruptions in global capital and credit markets; movements in interest rates; competitive pressures on product pricing and services; success, impact, and timing of our business strategies, including market acceptance of any new products or services implementing our “Fair Play” banking philosophy; the nature, extent, timing, and results of governmental actions, examinations, reviews, reforms, regulations, and interpretations, including those related to the Dodd-Frank Wall Street Reform and Consumer Protection Act and the Basel III regulatory capital reforms, as well as those involving the OCC, Federal Reserve, FDIC, and CFPB; the possibility that the anticipated benefits of the merger with FirstMerit Corporation are not realized when expected or at all, including as a result of the impact of, or problems arising from, the integration of the two companies or as a result of the strength of the economy and competitive factors in the areas where we do business; diversion of management’s attention from ongoing business operations and opportunities; potential adverse reactions or changes to business or employee relationships, including those resulting from the completion of the merger with FirstMerit Corporation; our ability to complete the integration of FirstMerit Corporation successfully; and other factors

34

that may affect our future results. Additional factors that could cause results to differ materially from those described above can be found in our Annual Report on Form 10-K for the year ended December 31, 2016, which is on file with the Securities and Exchange Commission (the “SEC”) and available in the “Investor Relations” section of our website, http://www.huntington.com, under the heading “Publications and Filings” and in other documents we file with the SEC.

All forward-looking statements speak only as of the date they are made and are based on information available at that time. We do not assume any obligation to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements were made or to reflect the occurrence of unanticipated events except as required by federal securities laws. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements.

Non-GAAP Financial Measures

This document contains GAAP financial measures and non-GAAP financial measures where management believes it to be helpful in understanding Huntington’s results of operations or financial position. Where non-GAAP financial measures are used, the comparable GAAP financial measure, as well as the reconciliation to the comparable GAAP financial measure, can be found herein where applicable.

Significant Items

From time-to-time, revenue, expenses, or taxes are impacted by items judged by us to be outside of ordinary banking activities and/or by items that, while they may be associated with ordinary banking activities, are so unusually large that their outsized impact is believed by us at that time to be infrequent or short-term in nature. We refer to such items as Significant Items. Most often, these Significant Items result from factors originating outside the Company; e.g., regulatory actions / assessments, windfall gains, changes in accounting principles, one-time tax assessments / refunds, litigation actions, etc. In other cases, they may result from our decisions associated with significant corporate actions outside of the ordinary course of business; e.g., merger / restructuring charges, recapitalization actions, goodwill impairment, etc.

Even though certain revenue and expense items are naturally subject to more volatility than others due to changes in market and economic environment conditions, as a general rule volatility alone does not define a Significant Item. For example, changes in the provision for credit losses, gains / losses from investment activities, asset valuation writedowns, etc., reflect ordinary banking activities and are, therefore, typically excluded from consideration as a Significant Item.

We believe the disclosure of Significant Items provides a better understanding of our performance and trends to ascertain which of such items, if any, to include or exclude from an analysis of our performance; i.e., within the context of determining how that performance differed from expectations, as well as how, if at all, to adjust estimates of future performance accordingly. To this end, we adopted a practice of listing Significant Items in our external disclosure documents; e.g., earnings press releases, investor presentations, Forms 10-Q and 10-K.

Significant Items for any particular period are not intended to be a complete list of items that may materially impact current or future period performance.

Fully-Taxable Equivalent Basis

Interest income, yields, and ratios on a FTE basis are considered non-GAAP financial measures.  Management believes net interest income on a FTE basis provides an insightful picture of the interest margin for comparison purposes.  The FTE basis also allows management to assess the comparability of revenue arising from both taxable and tax-exempt sources.  The FTE basis assumes a federal statutory tax rate of 35 percent. We encourage readers to consider the consolidated financial statements and other financial information contained in this Form 10-Q in their entirety, and not to rely on any single financial measure.

Non-Regulatory Capital Ratios

In addition to capital ratios defined by banking regulators, the Company considers various other measures when evaluating capital utilization and adequacy, including:

• Tangible common equity to tangible assets, and

• Tangible common equity to risk-weighted assets using Basel III definitions.

These non-regulatory capital ratios are viewed by management as useful additional methods of reflecting the level of capital available to withstand unexpected market conditions. Additionally, presentation of these ratios allows readers to compare the Company’s capitalization to other financial services companies. These ratios differ from capital ratios defined by banking regulators principally in that the numerator excludes preferred securities, the nature and extent of which varies among different financial services companies. These ratios are not defined in Generally Accepted Accounting Principles (“GAAP”) or

35

federal banking regulations. As a result, these non-regulatory capital ratios disclosed by the Company are considered non-GAAP financial measures.

Because there are no standardized definitions for these non-regulatory capital ratios, the Company’s calculation methods may differ from those used by other financial services companies. Also, there may be limits in the usefulness of these measures to investors. As a result, the Company encourages readers to consider the consolidated financial statements and other financial information contained in this Form 10-Q in their entirety, and not to rely on any single financial measure.

Risk Factors

Information on risk is discussed in the Risk Factors section included in Item 1A of our 2016 Form 10-K. Additional information regarding risk factors can also be found in the Risk Management and Capital discussion of this report.

Critical Accounting Policies and Use of Significant Estimates

Our financial statements are prepared in accordance with GAAP. The preparation of financial statements in conformity with GAAP requires us to establish critical accounting policies and make accounting estimates, assumptions, and judgments that affect amounts recorded and reported in our financial statements. Note 1 of Notes to Consolidated Financial Statements included in our December 31, 2016 Form 10-K, as supplemented by this report, lists significant accounting policies we use in the development and presentation of our financial statements. This MD&A, the significant accounting policies, and other financial statement disclosures identify and address key variables and other qualitative and quantitative factors necessary for an understanding and evaluation of our company, financial position, results of operations, and cash flows.

An accounting estimate requires assumptions about uncertain matters that could have a material effect on the financial statements if a different amount within a range of estimates were used or if estimates changed from period to period. Estimates are made under facts and circumstances at a point in time, and changes in those facts and circumstances could produce results that significantly differ from when those estimates were made.

Our most significant accounting estimates relate to our ACL, valuation of financial instruments, contingent liabilities, income taxes, and deferred tax assets. These significant accounting estimates and their related application are discussed in our December 31, 2016 Form 10-K.

Recent Accounting Pronouncements and Developments

Note 2 of the Notes to Unaudited Condensed Consolidated Financial Statements discusses new accounting pronouncements adopted during 2017 and the expected impact of accounting pronouncements recently issued but not yet required to be adopted. To the extent the adoption of new accounting standards materially affect financial condition, results of operations, or liquidity, the impacts are discussed in the applicable section of this MD&A and the Notes to Unaudited Condensed Consolidated Financial Statements.

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Item 1: Financial Statements

Huntington Bancshares Incorporated

Condensed Consolidated Balance Sheets

(Unaudited)

(dollar amounts in thousands, except number of shares)	March 31,			December 31,
	2017			2016
Assets
Cash and due from banks	$	1,308,813		$	1,384,770
Interest-bearing deposits in banks	63,055			58,267
Trading account securities	97,785			133,295
Loans held for sale (includes $423,324 and $438,224 respectively, measured at fair value)(1)	518,238			512,951
Available-for-sale and other securities	16,173,605			15,562,837
Held-to-maturity securities	7,533,517			7,806,939
Loans and leases (includes $98,342 and $82,319 respectively, measured at fair value)(1)	67,098,269			66,961,996
Allowance for loan and lease losses	(672,580		)	(638,413		)
Net loans and leases	66,425,689			66,323,583
Bank owned life insurance	2,445,545			2,432,086
Premises and equipment	852,582			815,508
Goodwill	1,992,849			1,992,849
Other intangible assets	388,103			402,458
Servicing rights	227,678			225,578
Accrued income and other assets	2,018,047			2,062,976
Total assets	$	100,045,506		$	99,714,097
Liabilities and shareholders’ equity
Liabilities
Deposits	$	77,422,510		$	75,607,717
Short-term borrowings	1,263,430			3,692,654
Long-term debt	9,279,140			8,309,159
Accrued expenses and other liabilities	1,643,279			1,796,421
Total liabilities	89,608,359			89,405,951
Shareholders’ equity
Preferred stock	1,071,227			1,071,227
Common stock	10,900			10,886
Capital surplus	9,898,889			9,881,277
Less treasury shares, at cost	(26,765		)	(27,384		)
Accumulated other comprehensive loss	(390,860		)	(401,016		)
Retained (deficit) earnings	(126,244		)	(226,844		)
Total shareholders’ equity	10,437,147			10,308,146
Total liabilities and shareholders’ equity	$	100,045,506		$	99,714,097
Common shares authorized (par value of $0.01)	1,500,000,000			1,500,000,000
Common shares issued	1,089,986,453			1,088,641,251
Common shares outstanding	1,087,119,978			1,085,688,538
Treasury shares outstanding	2,866,475			2,952,713
Preferred stock, authorized shares	6,617,808			6,617,808
Preferred shares issued	2,705,571			2,702,571
Preferred shares outstanding	1,098,006			1,098,006

(1) Amounts represent loans for which Huntington has elected the fair value option. See Note 11.

See Notes to Unaudited Condensed Consolidated Financial Statements

37

Huntington Bancshares Incorporated
Condensed Consolidated Statements of Income
(Unaudited)
(dollar amounts in thousands, except per share amounts)
	Three months ended March 31,
	2017			2016
Interest and fee income:
Loans and leases	$	675,934		$	463,422
Available-for-sale and other securities
Taxable	76,109			39,614
Tax-exempt	18,862			13,019
Held-to-maturity securities—taxable	45,195			36,789
Other	4,260			4,407
Total interest income	820,360			557,251
Interest expense:
Deposits	34,790			23,018
Short-term borrowings	5,866			898
Federal Home Loan Bank advances	66			69
Subordinated notes and other long-term debt	49,663			30,200
Total interest expense	90,385			54,185
Net interest income	729,975			503,066
Provision for credit losses	67,638			27,582
Net interest income after provision for credit losses	662,337			475,484
Service charges on deposit accounts	83,420			70,262
Cards and payment processing income	47,169			36,447
Mortgage banking income	31,692			18,543
Trust and investment management services	33,869			22,838
Insurance income	15,264			16,225
Brokerage income	15,758			15,502
Capital markets fees	14,200			13,010
Bank owned life insurance income	17,542			13,513
Gain on sale of loans	12,822			5,395
Net gains on sales of securities	16			—
Impairment losses recognized in earnings on available-for-sale securities	(24		)	—
Other noninterest income	40,735			30,132
Total noninterest income	312,463			241,867
Personnel costs	382,000			285,397
Outside data processing and other services	87,202			61,878
Equipment	46,700			32,576
Net occupancy	67,700			31,476
Professional services	18,295			13,538
Marketing	13,923			12,268
Deposit and other insurance expense	20,099			11,208
Amortization of intangibles	14,355			3,712
Other noninterest expense	57,148			39,027
Total noninterest expense	707,422			491,080
Income before income taxes	267,378			226,271
Provision for income taxes	59,284			54,957
Net income	208,094			171,314
Dividends on preferred shares	18,878			7,998
Net income applicable to common shares	$	189,216		$	163,316

38

Average common shares—basic	1,086,374			795,755
Average common shares—diluted	1,108,617			808,349
Per common share:
Net income—basic	$	0.17		$	0.21
Net income—diluted	0.17			0.20
Cash dividends declared	0.08			0.07
OTTI losses for the periods presented:
Total OTTI losses	$	(26	)	$	(3,733	)
Noncredit-related portion of loss recognized in OCI	2			3,733
Impairment losses recognized in earnings on available-for-sale securities	$	(24	)	$	—
See Notes to Unaudited Condensed Consolidated Financial Statements

39

Huntington Bancshares Incorporated

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

	Three Months Ended March 31,
(dollar amounts in thousands)	2017			2016
Net income	$	208,094		$	171,314
Other comprehensive income, net of tax:
Unrealized gains (losses) on available-for-sale and other securities:
Non-credit-related impairment recoveries (losses) on debt securities not expected to be sold	524			(2,349		)
Unrealized net gains (losses) on available-for-sale and other securities arising during the period, net of reclassification for net realized gains and losses	9,998			51,551
Total unrealized gains (losses) on available-for-sale and other securities	10,522			49,202
Unrealized gains (losses) on cash flow hedging derivatives, net of reclassifications to income	(826		)	8,829
Change in accumulated unrealized losses for pension and other post-retirement obligations	460			841
Other comprehensive income (loss), net of tax	10,156			58,872
Comprehensive income	$	218,250		$	230,186

See Notes to Unaudited Condensed Consolidated Financial Statements

40

Huntington Bancshares Incorporated

Condensed Consolidated Statements of Changes in Shareholders’ Equity

(Unaudited)

														Accumulated Other Comprehensive Gain (Loss)			Retained Earnings (Deficit)
(dollar amounts in thousands, except per share amounts)	Preferred Stock		Common Stock			Capital Surplus			Treasury Stock
	Amount		Shares	Amount					Shares		Amount									Total
Three months ended March 31, 2016
Balance, beginning of period	$	386,291	796,970	$	7,970	$	7,038,502		(2,041	)	$	(17,932	)	$	(226,158	)	$	(594,067	)	$	6,594,606
Net income																	171,314			171,314
Other comprehensive income (loss)														58,872						58,872
Net proceeds from issuance of Series D preferred stock	386,348																			386,348
Cash dividends declared:
Common ($0.07 per share)																	(55,774		)	(55,774		)
Preferred Series A ($21.25 per share)																	(7,703		)	(7,703		)
Preferred Series B ($8.31 per share)																	(295		)	(295		)
Recognition of the fair value of share-based compensation						11,268														11,268
Other share-based compensation activity			1,811	18		683											(1,166		)	(465		)
Other			—	—		10			(51	)	(485		)				(26		)	(501		)
Balance, end of period	$	772,639	798,781	$	7,988	$	7,050,463		(2,092	)	$	(18,417	)	$	(167,286	)	$	(487,717	)	$	7,157,670
Three months ended March 31, 2017
Balance, beginning of period	$	1,071,227	1,088,641	$	10,886	$	9,881,277		(2,953	)	$	(27,384	)	$	(401,016	)	$	(226,844	)	$	10,308,146
Net income																	208,094			208,094
Other comprehensive income (loss)														10,156						10,156
Cash dividends declared:
Common ($0.08 per share)																	(87,069		)	(87,069		)
Preferred Series A ($21.25 per share)																	(7,703		)	(7,703		)
Preferred Series B ($9.31 per share)																	(330		)	(330		)
Preferred Series C ($14.69 per share)																	(1,469		)	(1,469		)
Preferred Series D ($15.63 per share)																	(9,375		)	(9,375		)
Recognition of the fair value of share-based compensation						(1,885		)												(1,885		)
Other share-based compensation activity			1,338	13		19,089											(1,326		)	17,776
Other			7	1		408			87		619						(222		)	806
Balance, end of period	$	1,071,227	1,089,986	$	10,900	$	9,898,889		(2,866	)	$	(26,765	)	$	(390,860	)	$	(126,244	)	$	10,437,147

See Notes to Unaudited Condensed Consolidated Financial Statements

41

Huntington Bancshares Incorporated

Condensed Consolidated Statements of Cash Flows

(Unaudited)

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Operating activities
Net income	$	208,094		$	171,314
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	67,638			27,582
Depreciation and amortization	211,198			105,103
Share-based compensation expense	(1,885		)	11,268
Net change in:
Trading account securities	35,510			(8,927		)
Loans held for sale	23,544			(39,502		)
Accrued income and other assets	54,010			(41,066		)
Deferred income taxes	(20,271		)	(4,366		)
Accrued expense and other liabilities	(188,072		)	(25,580		)
Other, net	5,985			(4,036		)
Net cash provided by (used for) operating activities	395,751			191,790
Investing activities
Change in interest bearing deposits in banks	16,876			(14,830		)
Proceeds from:
Maturities and calls of available-for-sale and other securities	116,261			217,015
Maturities of held-to-maturity securities	279,077			210,606
Sales of available-for-sale and other securities	165,364			—
Purchases of available-for-sale and other securities	(887,880		)	(691,607		)
Purchases of held-to-maturity securities	(8,616		)	—
Net proceeds from sales of portfolio loans	118,626			74,831
Net loan and lease activity, excluding sales and purchases	(437,084		)	(714,140		)
Purchases of premises and equipment	(55,485		)	(12,157		)
Proceeds from sales of other real estate	5,860			6,950
Purchases of loans and leases	(43,972		)	(667,031		)
Other, net	(6,094		)	920
Net cash provided by (used for) investing activities	(737,067		)	(1,589,443		)
Financing activities
Increase (decrease) in deposits	1,814,793			363,177
Increase (decrease) in short-term borrowings	(2,433,055		)	(147,339		)
Net proceeds from issuance of long-term debt	1,029,231			1,024,068
Maturity/redemption of long-term debt	(47,434		)	(195,475		)
Dividends paid on preferred stock	(18,865		)	(7,998		)
Dividends paid on common stock	(87,015		)	(56,195		)
Proceeds from stock options exercised	4,822			1,126
Net proceeds from issuance of preferred stock	—			386,348
Other, net	2,882			(967		)
Net cash provided by (used for) financing activities	265,359			1,366,745
Increase (decrease) in cash and cash equivalents	(75,957		)	(30,908		)
Cash and cash equivalents at beginning of period	1,384,770			847,156
Cash and cash equivalents at end of period	$	1,308,813		$	816,248

42

Supplemental disclosures:
Interest paid	$	86,477	$	41,398
Income taxes paid	1,059		1,051
Non-cash activities
Loans transferred to held-for-sale from portfolio	158,735		145,210
Loans transferred to portfolio from held-for-sale	168		9,259
Transfer of loans to OREO	10,271		6,468

See Notes to Unaudited Condensed Consolidated Financial Statements.

43

Huntington Bancshares Incorporated

Notes to Unaudited Condensed Consolidated Financial Statements

1. BASIS OF PRESENTATION

The accompanying Unaudited Condensed Consolidated Financial Statements of Huntington reflect all adjustments consisting of normal recurring accruals which are, in the opinion of Management, necessary for a fair statement of the consolidated financial position, the results of operations, and cash flows for the periods presented. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. These Unaudited Condensed Consolidated Financial Statements have been prepared according to the rules and regulations of the SEC and, therefore, certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted. The Notes to Consolidated Financial Statements appearing in Huntington’s 2016 Form 10-K, which include descriptions of significant accounting policies, as updated by the information contained in this report, should be read in conjunction with these interim financial statements.

For statement of cash flows purposes, cash and cash equivalents are defined as the sum of “Cash and due from banks” which includes amounts on deposit with the Federal Reserve and “Federal funds sold and securities purchased under resale agreements.”

In conjunction with applicable accounting standards, all material subsequent events have been either recognized in the Unaudited Condensed Consolidated Financial Statements or disclosed in the Notes to Unaudited Condensed Consolidated Financial Statements.

2. ACCOUNTING STANDARDS UPDATE

ASU 2014-09—Revenue from Contracts with Customers (Topic 606): The amendments in ASU 2014-09 supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The general principle of the amendments require an entity to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance sets forth a five step approach for revenue recognition. The amendments are effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Management intends to adopt the new guidance on January 1, 2018 using the modified retrospective approach and is well into its outlined implementation plan. In this regard, management has completed a preliminary analysis that includes (a) identification of all revenue streams included in the financial statements; (b) determination of scope exclusions to identify ‘in-scope’ revenue streams; (c) determination of size, timing, and amount of revenue recognition for in-scope items; (d) determination of sample size of contracts for further analysis; and (e) completion of limited analysis on selected contracts to evaluate the potential impact of the new guidance. The key revenue streams identified include service charges, credit card and payment processing fees, trust services fees, insurance income, brokerage services, and mortgage banking income. The new guidance is not expected to have a significant impact on Huntington’s Unaudited Consolidated Financial Statements.

ASU 2016-01 - Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this Update make targeted improvements to GAAP including, but not limited to, requiring an entity to measure its equity investments with changes in the fair value recognized in the income statement; requiring an entity to present separately in OCI the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments (i.e., FVO liability); requiring public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; assessing deferred tax assets related to a net unrealized loss on AFS securities in combination with the entity’s other deferred tax assets; and eliminating some of the disclosures required by the existing GAAP while requiring entities to present and disclose some additional information. The new guidance is effective for the fiscal period beginning after December 15, 2017, including interim periods within those fiscal years. An entity should apply the amendments as a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-02 - Leases. This Update sets forth a new lease accounting model for lessors and lessees. For lessees, virtually all leases will be required to be recognized on the balance sheet by recording a right-of-use asset and lease liability. Subsequent accounting for leases varies depending on whether the lease is an operating lease or a finance lease. The accounting applied by a lessor is largely unchanged from that applied under the existing guidance. The ASU requires additional qualitative and quantitative disclosures with the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Update is effective for the fiscal period beginning after December 15, 2018, with early application permitted. Management is currently assessing the impact of the new guidance on Huntington's Unaudited

44

Consolidated Financial Statements. Huntington expects to recognize a right-of-use asset and a lease liability for its operating lease commitments.

ASU 2016-05 - Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. This Update provides accounting clarification for changes in the counterparty to a derivative instrument that has been designated as a qualified hedging instrument. Specifically, a change in the derivative counterparty does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-06 - Contingent Put and Call Options in Debt Instruments. This Update clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt instruments. An entity performing the assessment set forth in this Update will be required to assess embedded call (put) options solely in accordance with the four-step decision sequence. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-07 - Simplifying the Transition to the Equity Method of Accounting. This Update eliminates the requirement for the retrospective use of the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence of an investor. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for the equity method accounting. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-13 - Financial Instruments - Credit Losses. The amendments in this Update eliminate the probable recognition threshold for credit losses on financial assets measured at amortized cost. The Update requires those financial assets to be presented at the net amount expected to be collected (i.e., net of expected credit losses). The measurement of expected credit losses should be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The Update is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018. The amendments should be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. Management currently intends to adopt the guidance on January 1, 2020 and is assessing the impact of this Update on Huntington's Unaudited Consolidated Financial Statements. Management has formed a working group comprised of teams from different disciplines including credit and finance. The working group is currently evaluating the requirements of the new standard and the impact it will have on our processes. The early stages of this evaluation include a review of existing credit models to identify areas where existing credit models used to comply with other regulatory requirements may be leveraged and areas where new impairment models may be required.

ASU 2016-15 - Classification of Certain Cash Receipts and Cash Payments. The amendments in this Update add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows. Current guidance lacks consistent principles for evaluating the classification of cash payments and receipts in the statement of cash flows. This has led to diversity in practice and, in certain circumstances, financial statement restatements. Therefore, the FASB issued the ASU with the intent of reducing diversity in practice with respect to several types of cash flows. The amendments in this Update are effective using a retrospective transition approach for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-17 - Consolidation - Interests Held Through Related Parties that are Under Common Control. The Update amends the guidance included in ASU 2015-02, Consolidation: Amendments to Consolidation Analysis adopted by Huntington in 2016. The Update makes a narrow amendment and requires that a single decision maker should consider indirect economic interests in the entity held through related parties that are under common control on a proportionate basis when determining whether it is the primary beneficiary of that VIE. Prior to this amendment, indirect interests held through related parties that are under common control were to be considered equivalent of single decision maker’s direct interests in their entirety. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-04 - Simplifying the Test for Goodwill Impairment. The Update simplifies the goodwill impairment test. Under the new guidance, Step 2 of the goodwill impairment process that requires an entity to determine the implied fair value of its

45

goodwill by assigning fair value to all its assets and liabilities, is eliminated. Instead, the entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The new guidance is effective for annual and interim goodwill tests performed in fiscal years beginning after December 15, 2019. Early adoption is permitted. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-07 - Improving the Presentation of Net Periodic Pension Cost and Periodic Postretirement Benefit Cost. The amendments in this Update require that an employer report the service cost component of the pension cost and postretirement benefit cost in the same line items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of the net benefit cost should be presented in the income statement separately from the service cost component. The amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-08 - Premium Amortization on Purchased Callable Debt Securities. The Update amends the guidance related to amortization for certain callable debt securities held at a premium. The new guidance requires the premium to be amortized to the earliest call date. The guidance does not require an accounting change for securities purchased at discount. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

3. LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

Loans and leases for which Huntington has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are classified in the Unaudited Condensed Consolidated Balance Sheets as loans and leases. Except for loans which are accounted for at fair value, loans are carried at the principal amount outstanding, net of unamortized premiums and discounts and deferred loan fees and costs and purchase accounting adjustments, which resulted in a net premium of $179 million and $120 million at March 31, 2017 and December 31, 2016, respectively.

Loan and Lease Portfolio Composition

The following table provides a detailed listing of Huntington’s loan and lease portfolio at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Loans and leases:
Commercial and industrial	$	28,175,924		$	28,058,712
Commercial real estate	7,093,118			7,300,901
Automobile	11,155,094			10,968,782
Home equity	9,974,294			10,105,774
Residential mortgage	7,829,137			7,724,961
RV and marine finance	1,934,983			1,846,447
Other consumer	935,719			956,419
Loans and leases	67,098,269			66,961,996
Allowance for loan and lease losses	(672,580		)	(638,413		)
Net loans and leases	$	66,425,689		$	66,323,583

46

Purchased Credit-Impaired Loans

The following table presents a rollforward of the accretable yield for purchased credit impaired loans for the three-month period ended March 31, 2017: and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017
FirstMerit
Balance, beginning of period	$	36,669
Accretion	(4,702		)
Reclassification (to) from nonaccretable difference	5,405
Balance, end of period	$	37,372

The following table reflects the ending and unpaid balances of the purchase credit impaired loans at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance		Ending Balance		Unpaid Balance
FirstMerit
Commercial and industrial	$	67,514	$	97,946	$	68,338	$	100,031
Commercial real estate	22,597		38,045		34,042		56,320
Total	$	90,111	$	135,991	$	102,380	$	156,351

NALs and Past Due Loans

Loans are considered past due when the contractual amounts due with respect to principal and interest are not received within 30 days of the contractual due date.

The following table presents NALs by loan class at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Commercial and industrial	$	232,171	$	234,184
Commercial real estate	13,889		20,508
Automobile	4,881		5,766
Home equity	69,575		71,798
Residential mortgage	80,686		90,502
RV and marine finance	106		245
Other consumer	2		—
Total nonaccrual loans	$	401,310	$	423,003

The following table presents an aging analysis of loans and leases, including past due loans, by loan class at March 31, 2017 and December 31, 2016: (1)

	March 31, 2017
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	$	77,998	$	11,428	$	77,392	$	166,818	$	27,941,592	$	67,514	$	—	$	28,175,924	$	15,054	(2)
Commercial real estate	38,046		460		26,281		64,787		7,005,734		22,597		—		7,093,118		14,499
Automobile	70,564		15,517		8,331		94,412		11,058,889		—		1,793		11,155,094		8,123

47

Home equity	43,532		18,464		58,631		120,627		9,850,680		—		2,987		9,974,294		15,453
Residential mortgage	91,831		38,144		112,207		242,182		7,495,211		—		91,744		7,829,137		69,244		(3)
RV and marine finance	10,101		3,064		2,202		15,367		1,918,199		—		1,417		1,934,983		2,200
Other consumer	9,234		3,766		3,369		16,369		918,949		—		401		935,719		3,370
Total loans and leases	$	341,306	$	90,843	$	288,413	$	720,562	$	66,189,254	$	90,111	$	98,342	$	67,098,269	$	127,943

	December 31, 2016
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	42,052		20,136		74,174		136,362		27,854,012		68,338		—		28,058,712		18,148		(2)
Commercial real estate	21,187		3,202		29,659		54,048		7,212,811		34,042		—		7,300,901		17,215
Automobile loans	76,283		17,188		10,442		103,913		10,862,715		—		2,154		10,968,782		10,182
Home equity	38,899		23,903		53,002		115,804		9,986,697		—		3,273		10,105,774		11,508
Residential mortgage	122,469		37,460		116,682		276,611		7,373,414		—		74,936		7,724,961		66,952		(3)
RV and marine finance	10,009		2,230		1,566		13,805		1,831,123		—		1,519		1,846,447		1,462
Other consumer	9,442		4,324		3,894		17,660		938,322		—		437		956,419		3,895
Total loans and leases	$	320,341	$	108,443	$	289,419	$	718,203	$	66,059,094	$	102,380	$	82,319	$	66,961,996	$	129,362

(1) NALs are included in this aging analysis based on the loan’s past due status.

(2) Amounts include Huntington Technology Finance administrative lease delinquencies.

(3) Amounts include loans guaranteed by government organizations.

Allowance for Credit Losses

Huntington maintains two reserves, both of which reflect management’s judgment regarding the appropriate level necessary to absorb credit losses inherent in our loan and lease portfolio: the ALLL and the AULC. Combined, these reserves comprise the total ACL. The determination of the ACL requires significant estimates, including the timing and amounts of expected future cash flows on impaired loans and leases, consideration of current economic conditions, and historical loss experience pertaining to pools of homogeneous loans and leases, all of which may be susceptible to change.

The appropriateness of the ACL is based on management’s current judgments about the credit quality of the loan portfolio. These judgments consider on-going evaluations of the loan and lease portfolio, including such factors as the differing economic risks associated with each loan category, the financial condition of specific borrowers, the level of delinquent loans, the value of any collateral and, where applicable, the existence of any guarantees or other documented support. Further, management evaluates the impact of changes in interest rates and overall economic conditions on the ability of borrowers to meet their financial obligations when quantifying our exposure to credit losses and assessing the appropriateness of our ACL at each reporting date. In addition to general economic conditions and the other factors described above, additional factors also considered include: the impact of increasing or decreasing commercial real estate values and the development of new or expanded Commercial business segments. Also, the ACL assessment includes the on-going assessment of credit quality metrics, and a comparison of certain ACL benchmarks to current performance.

The ALLL consists of two components: (1) the transaction reserve, which includes a loan level allocation, specific reserves related to loans considered to be impaired, and loans involved in troubled debt restructurings, and (2) the general reserve. The transaction reserve component includes both (1) an estimate of loss based on pools of commercial and consumer loans and leases with similar characteristics, and (2) an estimate of loss based on an impairment review of each impaired C&I and CRE loan where obligor balance is greater than $1 million. For the C&I and CRE portfolios, the estimate of loss based on pools of loans and leases with similar characteristics is made by applying a PD factor and a LGD factor to each individual loan based on a regularly updated loan grade, using a standardized loan grading system. The PD factor and an LGD factor are determined for each loan grade using statistical models based on historical performance data. The PD factor considers on-going reviews of the financial performance of the specific borrower, including cash flow, debt-service coverage ratio, earnings power, debt level, and equity position, in conjunction with an assessment of the borrower’s industry and future prospects. The LGD factor considers analysis of the type of collateral and the relative LTV ratio. These reserve factors are developed based on credit migration models that track historical movements of loans between loan ratings over time and a combination of long-term average loss experience of our own portfolio and external industry data.

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In the case of more homogeneous portfolios, such as automobile loans, home equity loans, residential mortgage loans and RV and marine finance, the determination of the transaction reserve also incorporates PD and LGD factors. The estimate of loss is based on pools of loans and leases with similar characteristics. The PD factor considers current credit scores unless the account is delinquent, in which case a higher PD factor is used. The credit score provides a basis for understanding the borrower’s past and current payment performance, and this information is used to estimate expected losses over the emergence period. The performance of first-lien loans ahead of our junior-lien loans is available to use as part of our updated score process. The LGD factor considers analysis of the type of collateral and the relative LTV ratio. Credit scores, models, analyses, and other factors used to determine both the PD and LGD factors are updated frequently to capture the recent behavioral characteristics of the subject portfolios, as well as any changes in loss mitigation or credit origination strategies, and adjustments to the reserve factors are made as required.

The general reserve consists of various risk-profile reserve components. The risk-profile component considers items unique to our structure, policies, processes, and portfolio composition, as well as qualitative measurements and assessments of the loan portfolios including, but not limited to, management quality, concentrations, portfolio composition, industry comparisons, and internal review functions.

The estimate for the AULC is determined using the same procedures and methodologies as used for the ALLL. The loss factors used in the AULC are the same as the loss factors used in the ALLL while also considering a historical utilization of unused commitments. The AULC is reflected in accrued expenses and other liabilities in the Unaudited Condensed Consolidated Balance Sheets.

The acquired loans were recorded at their fair value as of the acquisition date and the prior ALLL was eliminated. An ALLL for acquired loans is estimated using a methodology similar to that used for originated loans. The allowance determined for each acquired loan is compared to the remaining fair value adjustment for that loan. If the computed allowance is greater, the excess is added to the allowance through a provision for loan losses. If the computed allowance is less, no additional allowance is recognized.

The ACL is increased through a provision for credit losses that is charged to earnings, based on Management’s quarterly evaluation of the factors previously mentioned, and is reduced by charge-offs, net of recoveries, and the ACL associated with loans sold or transferred to held for sale.

The following table presents ALLL and AULC activity by portfolio segment for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2017:
ALLL balance, beginning of period	$	451,091		$	187,322		$	638,413
Loan charge-offs	(23,669		)	(47,046		)	(70,715		)
Recoveries of loans previously charged-off	17,815			13,462			31,277
Provision (reduction in allowance) for loan and lease losses	35,145			38,534			73,679
Allowance for loans sold or transferred to loans held for sale	(74		)	—			(74		)
ALLL balance, end of period	$	480,308		$	192,272		$	672,580
AULC balance, beginning of period	$	86,543		$	11,336		$	97,879
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,356			(8,397		)	(6,041		)
AULC balance, end of period	$	88,899		$	2,939		$	91,838
ACL balance, end of period	$	569,207		$	195,211		$	764,418

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(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(28,949		)	(30,743		)	(59,692		)
Recoveries of loans previously charged-off	39,911			11,229			51,140
Provision for (reduction in allowance) loan and lease losses	12,726			11,612			24,338
Allowance for loans sold or transferred to loans held for sale	—			90			90
ALLL balance, end of period	$	422,441		$	191,278		$	613,719
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,424			820			3,244
AULC balance, end of period	$	65,872		$	9,453		$	75,325
ACL balance, end of period	$	488,313		$	200,731		$	689,044

Any loan in any portfolio may be charged-off prior to the policies described below if a loss confirming event has occurred. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure, or receipt of an asset valuation indicating a collateral deficiency and that asset is the sole source of repayment. Additionally, discharged, collateral dependent non-reaffirmed debt in Chapter 7 bankruptcy filings will result in a charge-off to estimated collateral value, less anticipated selling costs.

C&I and CRE loans are either fully or partially charged-off at 90-days past due. Automobile, RV and marine finance loans and other consumer loans are charged-off at 120-days past due. First-lien and junior-lien home equity loans are charged-off to the estimated fair value of the collateral, less anticipated selling costs, at 150-days past due and 120-days past due, respectively. Residential mortgages are charged-off to the estimated fair value of the collateral at 150-days past due.

Credit Quality Indicators

To facilitate the monitoring of credit quality for C&I and CRE loans, and for purposes of determining an appropriate ACL level for these loans, Huntington utilizes the following internally defined categories of credit grades:

Pass - Higher quality loans that do not fit any of the other categories described below.

OLEM - The credit risk may be relatively minor yet represent a risk given certain specific circumstances. If the potential weaknesses are not monitored or mitigated, the loan may weaken or the collateral may be inadequate to protect Huntington’s position in the future.

Substandard - Inadequately protected loans by the borrower’s ability to repay, equity, and/or the collateral pledged to secure the loan. These loans have identified weaknesses that could hinder normal repayment or collection of the debt. It is likely Huntington will sustain some loss if any identified weaknesses are not mitigated.

Doubtful - Loans that have all of the weaknesses inherent in those loans classified as Substandard, with the added elements of the full collection of the loan is improbable and that the possibility of loss is high.

The categories above, which are derived from standard regulatory rating definitions, are assigned upon initial approval of the loan or lease and subsequently updated as appropriate.

Commercial loans categorized as OLEM, Substandard, or Doubtful are considered Criticized loans. Commercial loans categorized as Substandard or Doubtful are both considered Classified loans.

For all classes within the consumer loan portfolios, each loan is assigned a specific PD factor that is partially based on the borrower’s most recent credit bureau score, which we update quarterly. A credit bureau score is a credit score developed by Fair Isaac Corporation based on data provided by the credit bureaus. The credit bureau score is widely accepted as the standard measure of consumer credit risk used by lenders, regulators, rating agencies, and consumers. The higher the credit bureau score, the higher likelihood of repayment and therefore, an indicator of higher credit quality.

Huntington assesses the risk in the loan portfolio by utilizing numerous risk characteristics. The classifications described above, and also presented in the table below, represent one of those characteristics that are closely monitored in the overall credit risk management processes.

The following table presents each loan and lease class by credit quality indicator at March 31, 2017 and December 31, 2016:

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	March 31, 2017
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,216,400	$	808,467	$	1,131,835	$	19,222	$	28,175,924
Commercial real estate	6,867,440		120,212		103,983		1,483		7,093,118
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,445,124	$	4,254,397	$	1,172,859	$	280,921	$	11,153,301
Home equity	6,131,710		2,924,593		631,268		283,736		9,971,307
Residential mortgage	4,643,664		2,406,782		611,675		75,272		7,737,393
RV and marine finance	1,179,561		699,701		16,202		38,102		1,933,566
Other consumer	333,683		440,599		142,515		18,521		935,318

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,211,885	$	810,287	$	1,028,819	$	7,721	$	28,058,712
Commercial real estate	7,042,304		96,975		159,098		2,524		7,300,901
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,369,085	$	4,043,611	$	1,298,460	$	255,472	$	10,966,628
Home equity	6,280,328		2,891,330		637,560		293,283		10,102,501
Residential mortgage	4,662,777		2,285,121		615,067		87,060		7,650,025
RV and marine finance	1,064,143		644,039		72,995		63,751		1,844,928
Other consumer	346,867		455,959		133,243		19,913		955,982

(1) Excludes loans accounted for under the fair value option.

(2) Reflects most recent customer credit scores.

(3) Reflects deferred fees and costs, loans in process, loans to legal entities, etc.

Impaired Loans

For all classes within the C&I and CRE portfolios, all loans with an obligor balance of $1 million or greater are evaluated on a quarterly basis for impairment. Generally, consumer loans within any class are not individually evaluated on a regular basis for impairment. However, certain home equity and residential mortgage loans are measured for impairment based on the underlying collateral value. All TDRs, regardless of the outstanding balance amount, are also considered to be impaired. Loans acquired with evidence of deterioration of credit quality since origination for which it is probable at acquisition that all contractually required payments will not be collected are also considered to be impaired.

Once a loan has been identified for an assessment of impairment, the loan is considered impaired when, based on current information and events, it is probable that all amounts due according to the contractual terms of the loan agreement will not be collected. This determination requires significant judgment and use of estimates, and the eventual outcome may differ significantly from those estimates.

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When a loan in any class has been determined to be impaired, the amount of the impairment is measured using the present value of expected future cash flows discounted at the loan’s effective interest rate or, as a practical expedient, the observable market price of the loan, or the fair value of the collateral, less anticipated selling costs, if the loan is collateral dependent. When the present value of expected future cash flows is used, the effective interest rate is the original contractual interest rate of the loan adjusted for any cost, fee, premium, or discount. When the contractual interest rate is variable, the effective interest rate of the loan changes over time. A specific reserve is established as a component of the ALLL when a loan has been determined to be impaired. Subsequent to the initial measurement of impairment, if there is a significant change to the impaired loan’s expected future cash flows, or if actual cash flows are significantly different from the cash flows previously estimated, Huntington recalculates the impairment and appropriately adjusts the specific reserve. Similarly, if Huntington measures impairment based on the observable market price of an impaired loan or the fair value of the collateral of an impaired collateral dependent loan, Huntington will adjust the specific reserve.

When a loan within any class is impaired, the accrual of interest income is discontinued unless the receipt of principal and interest is no longer in doubt. Interest income on TDRs is accrued when all principal and interest is expected to be collected under the post-modification terms. Cash receipts on nonaccruing impaired loans within any class are generally applied entirely against principal until the loan has been collected in full (including already charged-off portion), after which time any additional cash receipts are recognized as interest income. Cash receipts on accruing impaired loans within any class are applied in the same manner as accruing loans that are not considered impaired.

The following tables present the balance of the ALLL attributable to loans by portfolio segment individually and collectively evaluated for impairment and the related loan and lease balance at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at March 31, 2017:
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	24,519	$	11,888	$	36,407
Attributable to loans collectively evaluated for impairment	455,789		180,384		636,173
Total ALLL balance	$	480,308	$	192,272	$	672,580
Loan and Lease Ending Balances at March 31, 2017: (1)
Portion of loan and lease ending balance:
Purchased credit-impaired loans	$	90,111	$	—	$	90,111
Individually evaluated for impairment	425,793		457,790		883,583
Collectively evaluated for impairment	34,753,138		31,273,095		66,026,233
Total loans and leases evaluated for impairment	$	35,269,042	$	31,730,885	$	66,999,927

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2016
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	10,525	$	11,021	$	21,546
Attributable to loans collectively evaluated for impairment	440,566		176,301		616,867
Total ALLL balance:	$	451,091	$	187,322	$	638,413
Loan and Lease Ending Balances at December 31, 2016 (1)
Portion of loan and lease ending balances:
Purchased credit-impaired loans	$	102,380	$	—	$	102,380
Individually evaluated for impairment	415,624		457,890		873,514
Collectively evaluated for impairment	34,841,609		31,062,174		65,903,783
Total loans and leases evaluated for impairment	$	35,359,613	$	31,520,064	$	66,879,677

(1) Excludes loans accounted for under the fair value option.

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The following tables present by class the ending, unpaid principal balance, and the related ALLL, along with the average balance and interest income recognized only for impaired loans and leases and purchased credit-impaired loans: (1), (2)

	March 31, 2017						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	250,789	$	290,673	$	—	$	275,409	$	4,500
Commercial real estate	86,621		117,745		—		85,829		2,000
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (3)	278,368		306,613		33,678		334,179		1,906
Commercial real estate (4)	41,416		49,444		2,810		69,094		467
Automobile	32,731		32,942		2,004		31,846		534
Home equity (6)	326,755		360,622		16,232		323,079		3,949
Residential mortgage (6) (7)	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57
Total
Commercial and industrial	529,157		597,286		33,678		609,588		6,406
Commercial real estate	128,037		167,189		2,810		154,923		2,467
Automobile	32,731		32,942		2,004		31,846		534
Home equity	326,755		360,622		16,232		323,079		3,949
Residential mortgage	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57

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	December 31, 2016						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	261,144	$	1,233
Commercial real estate	88,817		126,152		—		71,807		1,616
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		1,473		2
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		45		102
With an allowance recorded:
Commercial and industrial (3)	406,243		448,121		22,259		264,084		3,086
Commercial real estate (4)	97,238		107,512		3,434		79,857		758
Automobile	30,961		31,298		1,850		32,284		578
Home equity (6)	319,404		352,722		15,032		250,016		2,968
Residential mortgage (6) (7)	327,753		363,099		12,849		362,280		3,036
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,799		66
Total
Commercial and industrial	705,849		806,833		22,259		525,228		4,319
Commercial real estate	186,055		233,664		3,434		151,664		2,374
Automobile	30,961		31,298		1,850		32,284		578
Home equity	319,404		352,722		15,032		250,016		2,968
Residential mortgage	327,753		363,099		12,849		363,753		3,038
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,844		168

(1) These tables do not include loans fully charged-off.

(2) All automobile, RV and marine finance and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(3) At March 31, 2017 and December 31, 2016, commercial and industrial loans with an allowance recorded of $117 million and $293 million, respectively, were considered impaired due to their status as a TDR.

(4) At March 31, 2017 and December 31, 2016, commercial real estate loans with an allowance recorded of $24 million and $81 million, respectively, were considered impaired due to their status as a TDR.

(5) The differences between the ending balance and unpaid principal balance amounts represent partial charge-offs.

(6) Includes home equity and residential mortgages considered to be collateral dependent as well as home equity and mortgage loans considered impaired due to their status as a TDR.

(7) At March 31, 2017 and December 31, 2016, residential mortgage loans with an allowance recorded of $30 million and $29 million, respectively, were guaranteed by the U.S. government.

TDR Loans

TDRs are modified loans where a concession was provided to a borrower experiencing financial difficulties. Loan modifications are considered TDRs when the concessions provided are not available to the borrower through either normal channels or other sources. However, not all loan modifications are TDRs. Acquired, non-purchased credit impaired loan are only considered for TDR reporting for modifications made subsequent to acquisition.

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The following table presents by class and by the reason for the modification, the number of contracts, post-modification outstanding balance, and the financial effects of the modification for the three-month periods ended March 31, 2017 an 2016:

	New Troubled Debt Restructurings During The Three-Month Period Ended (1)
	March 31, 2017						March 31, 2016
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)			Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)
Commercial and industrial:
Interest rate reduction	1	$	19	$	6		1	$	17	$	(1	)
Amortization or maturity date change	236	112,425		(1,002		)	184	122,658		572
Other	3	160		(27		)	8	858		(4		)
Total Commercial and industrial	240	112,604		(1,023		)	193	123,533		567
Commercial real estate:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	24	31,263		(388		)	24	33,795		(559		)
Other	—	—		—			2	263		16
Total commercial real estate:	24	31,263		(388		)	26	34,058		(543		)
Automobile:
Interest rate reduction	14	178		5			4	42		2
Amortization or maturity date change	477	4,301		111			421	3,901		220
Chapter 7 bankruptcy	240	1,822		29			317	2,562		115
Other	—	—		—			—	—		—
Total Automobile	731	6,301		145			742	6,505		337
Home equity:
Interest rate reduction	8	562		7			20	1,384		67
Amortization or maturity date change	106	5,496		(674		)	229	11,890		(1,282		)
Chapter 7 bankruptcy	87	3,619		1,038			99	3,597		733
Other	58	3,729		(326		)	—	—		—
Total Home equity	259	13,406		45			348	16,871		(482		)
Residential mortgage:
Interest rate reduction	2	110		(9		)	5	657		(32		)
Amortization or maturity date change	99	11,071		(258		)	92	10,759		(577		)
Chapter 7 bankruptcy	24	2,691		(136		)	17	1,505		70
Other	16	1,920		14			—	—		—
Total Residential mortgage	141	15,792		(389		)	114	12,921		(539		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	14	476		12			—	—		—
Chapter 7 bankruptcy	15	210		4			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	29	686		16			—	—		—

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Other consumer:
Interest rate reduction	1	78		2			—	—		—
Amortization or maturity date change	2	267		7			4	555		24
Chapter 7 bankruptcy	1	4		—			7	66		7
Other	—	—		—			—	—		—
Total Other consumer	4	349		9			11	621		31
Total new troubled debt restructurings	1,428	$	180,401	$	(1,585	)	1,434	$	194,509	$	(629	)

(1) TDRs may include multiple concessions and the disclosure classifications are based on the primary concession provided to the borrower.

(2) Amount represents the financial impact via provision for loan and lease losses as a result of the modification.

Pledged Loans and Leases

At March 31, 2017, the Bank has access to the Federal Reserve’s discount window and advances from the FHLB – Cincinnati. As of March 31, 2017, these borrowings and advances are secured by $29.3 billion of loans and securities.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which we have re-branded Huntington Technology Finance. Huntington assumed debt associated with a related securitization. As of March 31, 2017, the debt is secured by $55 million of leases held by the trust.

4. AVAILABLE-FOR-SALE AND OTHER SECURITIES

Listed below are the contractual maturities of available-for-sale and other securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
U.S. Treasury, Federal agency, and other agency securities:
U.S. Treasury:
1 year or less	$	6,379	$	6,383	$	4,978	$	4,988
After 1 year through 5 years	502		507		502		509
After 5 years through 10 years	—		—		—		—
After 10 years	—		—		—		—
Total U.S. Treasury	6,881		6,890		5,480		5,497
Federal agencies: mortgage-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	41,925		41,995		46,591		46,762
After 5 years through 10 years	273,555		274,738		173,941		176,404
After 10 years	11,099,533		10,905,134		10,630,929		10,450,176
Total Federal agencies: mortgage-backed securities	11,415,013		11,221,867		10,851,461		10,673,342
Other agencies:
1 year or less	4,354		4,417		4,302		4,367
After 1 year through 5 years	9,503		9,690		5,092		5,247
After 5 years through 10 years	75,673		75,736		63,618		63,928
After 10 years	—		—		—		—
Total other agencies	89,530		89,843		73,012		73,542

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Total U.S. Treasury, Federal agency, and other agency securities	11,511,424		11,318,600		10,929,953		10,752,381
Municipal securities:
1 year or less	180,536		178,416		169,636		166,887
After 1 year through 5 years	951,261		953,776		933,893		933,903
After 5 years through 10 years	1,481,804		1,493,797		1,463,459		1,464,583
After 10 years	689,993		691,165		693,440		684,684
Total municipal securities	3,303,594		3,317,154		3,260,428		3,250,057
Asset-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	88,216		88,681		80,700		80,560
After 5 years through 10 years	168,634		170,102		223,352		224,565
After 10 years	537,534		508,154		520,072		488,356
Total asset-backed securities	794,384		766,937		824,124		793,481
Corporate debt:
1 year or less	59,021		59,429		43,223		43,603
After 1 year through 5 years	64,529		66,027		78,430		80,196
After 5 years through 10 years	34,681		35,362		32,523		32,865
After 10 years	36,098		37,863		40,361		42,019
Total corporate debt	194,329		198,681		194,537		198,683
Other:
1 year or less	1,652		1,652		1,650		1,650
After 1 year through 5 years	2,300		2,275		2,302		2,283
After 5 years through 10 years	—		—		—		—
After 10 years	46		46		10		10
Nonmarketable equity securities	552,628		552,628		547,704		547,704
Mutual funds	14,331		14,331		15,286		15,286
Marketable equity securities	861		1,301		861		1,302
Total other	571,818		572,233		567,813		568,235
Total available-for-sale and other securities	$	16,375,549	$	16,173,605	$	15,776,855	$	15,562,837

Other securities at March 31, 2017 and December 31, 2016 include nonmarketable equity securities of $249 million and $249 million of stock issued by the FHLB and $303 million and $299 million of Federal Reserve Bank stock, respectively. Non-marketable equity securities are recorded at amortized cost. Other securities also include Mutual funds and marketable equity securities.

The following tables provide amortized cost, fair value, and gross unrealized gains and losses recognized in OCI by investment category at March 31, 2017 and December 31, 2016:

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			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
U.S. Treasury	$	6,881	$	9	$	—		$	6,890
Federal agencies:
Mortgage-backed securities	11,415,013		10,882		(204,028		)	11,221,867
Other agencies	89,530		356		(43		)	89,843
Total U.S. Treasury, Federal agency securities	11,511,424		11,247		(204,071		)	11,318,600
Municipal securities	3,303,594		39,687		(26,127		)	3,317,154
Asset-backed securities	794,384		2,225		(29,672		)	766,937
Corporate debt	194,329		4,357		(5		)	198,681
Other securities	571,818		441		(26		)	572,233
Total available-for-sale and other securities	$	16,375,549	$	57,957	$	(259,901	)	$	16,173,605

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
U.S. Treasury	$	5,480	$	17	$	—		$	5,497
Federal agencies:
Mortgage-backed securities	10,851,461		12,548		(190,667		)	10,673,342
Other agencies	73,012		536		(6		)	73,542
Total U.S. Treasury, Federal agency securities	10,929,953		13,101		(190,673		)	10,752,381
Municipal securities	3,260,428		28,431		(38,802		)	3,250,057
Asset-backed securities	824,124		1,492		(32,135		)	793,481
Corporate debt	194,537		4,161		(15		)	198,683
Other securities	567,813		441		(19		)	568,235
Total available-for-sale and other securities	$	15,776,855	$	47,626	$	(261,644	)	$	15,562,837

The following tables provide detail on investment securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	9,846,004	$	(202,610	)	$	40,432	$	(1,418	)	$	9,886,436	$	(204,028	)
Other agencies	25,475		(43		)	—		—			25,475		(43		)
Total Federal agency securities	9,871,479		(202,653		)	40,432		(1,418		)	9,911,911		(204,071		)
Municipal securities	859,848		(19,825		)	257,829		(6,302		)	1,117,677		(26,127		)
Asset-backed securities	260,870		(2,268		)	201,436		(27,404		)	462,306		(29,672		)
Corporate debt	694		(5		)	200		—			894		(5		)
Other securities	785		(15		)	1,489		(11		)	2,274		(26		)
Total temporarily impaired securities	$	10,993,676	$	(224,766	)	$	501,386	$	(35,135	)	$	11,495,062	$	(259,901	)

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	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	8,908,470	$	(189,318	)	$	41,706	$	(1,349	)	$	8,950,176	$	(190,667	)
Other agencies	924		(6		)	—		—			924		(6		)
Total Federal agency securities	8,909,394		(189,324		)	41,706		(1,349		)	8,951,100		(190,673		)
Municipal securities	1,412,152		(29,175		)	272,292		(9,627		)	1,684,444		(38,802		)
Asset-backed securities	361,185		(3,043		)	178,924		(29,092		)	540,109		(32,135		)
Corporate debt	3,567		(15		)	200		—			3,767		(15		)
Other securities	790		(11		)	1,492		(8		)	2,282		(19		)
Total temporarily impaired securities	$	10,687,088	$	(221,568	)	$	494,614	$	(40,076	)	$	11,181,702	$	(261,644	)

At March 31, 2017, the carrying value of investment securities pledged to secure public and trust deposits, trading account liabilities, U.S. Treasury demand notes, and security repurchase agreements totaled $5.2 billion. There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10% of shareholders’ equity at March 31, 2017.

The following table is a summary of realized securities gains and losses for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Gross gains on sales of securities	$	545		$	—
Gross (losses) on sales of securities	(553		)	—
Net gain on sales of securities	$	(8	)	$	—

Security Impairment

Huntington evaluates the available-for-sale securities portfolio on a quarterly basis for impairment. The Company conducts a comprehensive security-level assessment on all available-for-sale securities. Huntington does not intend to sell, nor does it believe it will be required to sell these securities until the amortized cost is recovered, which may be maturity. Impairment would exist when the present value of the expected cash flows are not sufficient to recover the entire amortized cost basis at the balance sheet date. Under these circumstances, any credit impairment would be recognized in earnings. The contractual terms and/or cash flows of the investments do not permit the issuer to settle the securities at a price less than the amortized cost.

The highest risk segment in our investment portfolio is the trust preferred CDO securities which are in the asset-backed securities portfolio. This portfolio is in run off, and the Company has not purchased these types of securities since 2005. The fair values of the CDO assets have been impacted by various market conditions. The unrealized losses are primarily the result of wider liquidity spreads on asset-backed securities and the longer expected average lives of the trust-preferred CDO securities, due to changes in the expectations of when the underlying securities will be repaid.

Collateralized Debt Obligations are backed by a pool of debt securities issued by financial institutions. The collateral generally consists of trust-preferred securities and subordinated debt securities issued by banks, bank holding companies, and insurance companies. Many collateral issuers have the option of deferring interest payments on their debt for up to five years. A full cash flow analysis is used to estimate fair values and assess impairment for each security within this portfolio. A third party pricing specialist with direct industry experience in pooled-trust-preferred security evaluations is engaged to provide assistance estimating the fair value and expected cash flows on this portfolio. The full cash flow analysis is completed by evaluating the relevant credit and structural aspects of each pooled-trust-preferred security in the portfolio, including collateral performance projections for each piece of collateral in the security and terms of the security’s structure. The credit review includes an analysis of profitability, credit quality, operating efficiency, leverage, and liquidity using available financial and regulatory information for each underlying collateral issuer. The analysis also includes a review of historical industry default data, current / near-term operating conditions, and the impact of macroeconomic and regulatory changes. Using the results of the analysis, the Company estimates appropriate default and recovery probabilities for each piece of collateral then estimates the expected cash flows for each security. The fair value of each security is obtained by discounting the expected cash flows at a

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market discount rate. The market discount rate is determined by reference to yields observed in the market for similarly rated collateralized debt obligations, specifically high-yield collateralized loan obligations. The relatively high market discount rate is reflective of the uncertainty of the cash flows and illiquid nature of these securities. The large differential between the fair value and amortized cost of some of the securities reflects the high market discount rate and the expectation that the majority of the cash flows will not be received until near the final maturity of the security (the final maturities range from 2032 to 2035).

The following table summarizes the relevant characteristics of the Company's CDO securities portfolio, which are included in asset-backed securities, at March 31, 2017. Each security is part of a pool of issuers and supports a more senior tranche of securities except for the MM Comm III securities which are the most senior class.

Collateralized Debt Obligation Securities

(dollar amounts in thousands)

Deal Name	Par Value		Amortized Cost		Fair Value		Unrealized Loss (2)			Lowest Credit Rating (3)	# of Issuers Currently Performing/ Remaining (4)	Actual Deferrals and Defaults as a % of Original Collateral	Expected Defaults as a % of Remaining Performing Collateral	Excess Subordination (5)
ICONS	$	18,594	$	18,594	$	15,416	$	(3,178	)	BB	19/21	7	13	55
MM Comm III	4,573		4,369		3,625		(744		)	BB+	5/8	5	6	39
Pre TSL IX (1)	5,000		3,955		3,285		(670		)	C	27/37	16	8	10
Pre TSL XI (1)	25,000		19,413		15,923		(3,490		)	C	43/53	14	8	14
Reg Diversified (1)	25,500		4,195		1,832		(2,363		)	D	20/36	33	8	—
Tropic III	31,000		31,000		19,411		(11,589		)	BB	27/36	16	7	42
Total at March 31, 2017	$	109,667	$	81,526	$	59,492	$	(22,034	)
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)

(1) Security was determined to have OTTI. As such, the amortized cost is net of recorded credit impairment.

(2) The majority of securities have been in a continuous loss position for 12 months or longer.

(3) For purposes of comparability, the lowest credit rating expressed is equivalent to Fitch ratings even where the lowest rating is based on another nationally recognized credit rating agency.

(4) Includes both banks and/or insurance companies.

(5) Excess subordination percentage represents the additional defaults in excess of both current and projected defaults that the CDO can absorb before the bond experiences credit impairment. Excess subordinated percentage is calculated by (a) determining what percentage of defaults a deal can experience before the bond has credit impairment, and (b) subtracting from this default breakage percentage both total current and expected future default percentages.

For the three-month periods ended March 31, 2017 and 2016, the following table summarizes by security type the total OTTI losses recognized in the Unaudited Condensed Consolidated Statements of Income for securities evaluated for impairment as described above.

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—	$	—
Municipal Securities	24		—
Total available-for-sale and other securities	$	24	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the three-month periods ended March 31, 2017 and 2016 as follows:

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	Three Months Ended March 31,
(dollar amounts in thousands)	2017			2016
Balance, beginning of period	$	11,796		$	18,368
Reductions from sales	(4,558		)	—
Additional credit losses	24			—
Balance, end of period	$	7,262		$	18,368

5. HELD-TO-MATURITY SECURITIES

These are debt securities that Huntington has the intent and ability to hold until maturity. The debt securities are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts using the interest method.

Listed below are the contractual maturities of held-to-maturity securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Federal agencies: mortgage-backed securities:
1 year or less	$	—	$	—	$	—	$	—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	59,710		59,420		41,261		40,791
After 10 years	6,887,466		6,857,540		7,157,083		7,139,943
Total Federal agencies: mortgage-backed securities	6,947,176		6,916,960		7,198,344		7,180,734
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	382,617		383,290		398,341		399,452
After 10 years	197,714		195,990		204,083		201,180
Total other agencies	580,331		579,280		602,424		600,632
Total U.S. Government backed agencies	7,527,507		7,496,240		7,800,768		7,781,366
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,010		5,862		6,171		5,902
Total municipal securities	6,010		5,862		6,171		5,902
Total held-to-maturity securities	$	7,533,517	$	7,502,102	$	7,806,939	$	7,787,268

The following table provides amortized cost, gross unrealized gains and losses, and fair value by investment category at March 31, 2017 and December 31, 2016:

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	6,947,176	$	11,534	$	(41,750	)	$	6,916,960
Other agencies	580,331		1,886		(2,937		)	579,280
Total U.S. Government backed agencies	7,527,507		13,420		(44,687		)	7,496,240
Municipal securities	6,010		—		(148		)	5,862
Total held-to-maturity securities	$	7,533,517	$	13,420	$	(44,835	)	$	7,502,102

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			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	7,198,344	$	20,883	$	(38,493	)	$	7,180,734
Other agencies	602,424		1,690		(3,482		)	600,632
Total U.S. Government backed agencies	7,800,768		22,573		(41,975		)	7,781,366
Municipal securities	6,171		—		(269		)	5,902
Total held-to-maturity securities	$	7,806,939	$	22,573	$	(42,244	)	$	7,787,268

The following tables provide detail on held-to-maturity securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	4,852,958	$	(35,507	)	$	169,422	$	(6,243	)	$	5,022,380	$	(41,750	)
Other agencies	412,793		(2,937		)	—		—			412,793		(2,937		)
Total U.S. Government backed securities	5,265,751		(38,444		)	169,422		(6,243		)	5,435,173		(44,687		)
Municipal securities	5,862		(148		)	—		—			5,862		(148		)
Total temporarily impaired securities	$	5,271,613	$	(38,592	)	$	169,422	$	(6,243	)	$	5,441,035	$	(44,835	)

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	2,855,360	$	(31,470	)	$	186,226	$	(7,023	)	$	3,041,586	$	(38,493	)
Other agencies	413,207		(3,482		)	—		—			413,207		(3,482		)
Total U.S. Government backed securities	3,268,567		(34,952		)	186,226		(7,023		)	3,454,793		(41,975		)
Municipal securities	5,902		(269		)	—		—			5,902		(269		)
Total temporarily impaired securities	$	3,274,469	$	(35,221	)	$	186,226	$	(7,023	)	$	3,460,695	$	(42,244	)

Security Impairment

Huntington evaluates the held-to-maturity securities portfolio on a quarterly basis for impairment. Impairment would exist when the present value of the expected cash flows is not sufficient to recover the entire amortized cost basis at the balance sheet date. Under these circumstances, any impairment would be recognized in earnings. As of March 31, 2017, Management has evaluated held-to-maturity securities with unrealized losses for impairment and concluded no OTTI is required.

6. LOAN SALES AND SECURITIZATIONS

Residential Mortgage Loans

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

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	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Residential mortgage loans sold with servicing retained	$	845,415	$	632,466
Pretax gains resulting from above loan sales (1)	22,190		14,113

(1) Recorded in mortgage banking income.

A MSR is established only when the servicing is contractually separated from the underlying mortgage loans by sale or securitization of the loans with servicing rights retained. At initial recognition, the MSR asset is established at its fair value using assumptions consistent with assumptions used to estimate the fair value of existing MSRs. Subsequent to the initial recognition, MSRs may be measured using either the fair value method or the amortization method. The election of the fair value method or amortization method is made at the time each servicing class is established. Subsequently, servicing rights are accounted for based on the methodology chosen for each respective servicing class. Any increase or decrease in the fair value of MSRs carried under the fair value method, as well as amortization or impairment of MSRs recorded using the amortization method, during the period is recorded as an increase or decrease in mortgage banking income, which is reflected in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the three-month periods ended March 31, 2017 and 2016:

Fair Value Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Fair value, beginning of period	$	13,747		$	17,585
Change in fair value during the period due to:
Time decay (1)	(231		)	(273		)
Payoffs (2)	(364		)	(504		)
Changes in valuation inputs or assumptions (3)	155			(1,989		)
Fair value, end of period:	$	13,307		$	14,819
Weighted-average life (years)	5.6			5.2

(1) Represents decrease in value due to passage of time, including the impact from both regularly scheduled loan principal payments and partial loan paydowns.

(2) Represents decrease in value associated with loans that paid off during the period.

(3) Represents change in value resulting primarily from market-driven changes in interest rates and prepayment speeds.

Amortization Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	172,466		$	143,133
New servicing assets created	9,635			6,109
Impairment (charge) / recovery	1,800			(16,340		)
Amortization and other	(6,089		)	(5,627		)
Carrying value, end of period	$	177,812		$	127,275
Fair value, end of period	$	178,581		$	127,516
Weighted-average life (years)	7.1			6.5

MSRs do not trade in an active, open market with readily observable prices. While sales of MSRs occur, the precise terms and conditions are typically not readily available. Therefore, the fair value of MSRs is estimated using a discounted future cash flow model. The model considers portfolio characteristics, contractually specified servicing fees and assumptions related to prepayments, delinquency rates, late charges, other ancillary revenues, costs to service, and other economic factors. Changes in the assumptions used may have a significant impact on the valuation of MSRs.

MSR values are very sensitive to movements in interest rates as expected future net servicing income depends on the projected outstanding principal balances of the underlying loans, which can be greatly impacted by the level of prepayments.

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Huntington hedges the value of certain MSRs against changes in value attributable to changes in interest rates using a combination of derivative instruments and trading securities.

For MSRs under the fair value method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	11.90	%	$	(522	)	$	(1,007	)	10.90	%	$	(501	)	$	(970	)
Spread over forward interest rate swap rates	839 bps		(411		)	(798		)	536 bps		(454		)	(879		)

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	8.10	%	$	(4,756	)	$	(9,242	)	7.80	%	$	(4,510	)	$	(8,763	)
Spread over forward interest rate swap rates	1,064 bps		(5,518		)	(10,692		)	1,173 bps		(5,259		)	(10,195		)

Total servicing, late and other ancillary fees included in mortgage banking income amounted to $14 million and $12 million for the three-month periods ended March 31, 2017 and 2016, respectively. The unpaid principal balance of residential mortgage loans serviced for third parties was $19.1 billion and $18.9 billion at March 31, 2017 and December 31, 2016, respectively.

Automobile Loans

Huntington has retained servicing responsibilities on sold automobile loans and receives annual servicing fees and other ancillary fees on the outstanding loan balances. Automobile loan servicing rights are accounted for using the amortization method. A servicing asset is established at fair value at the time of the sale. The servicing asset is then amortized against servicing income. Impairment, if any, is recognized when carrying value exceeds the fair value as determined by calculating the present value of expected net future cash flows. The primary risk characteristic for measuring servicing assets is payoff rates of the underlying loan pools. Valuation calculations rely on the predicted payoff assumption and, if actual payoff is quicker than expected, then future value would be impaired.

Changes in the carrying value of automobile loan servicing rights for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	18,285		$	8,771
New servicing assets created	—			—
Amortization and other	(3,126		)	(1,742		)
Carrying value, end of period	$	15,159		$	7,029
Fair value, end of period	$	15,278		$	7,250
Weighted-average life (years)	4.0			3.3

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

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	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	19.95	%	$	(877	)	$	(1,695	)	19.98	%	$	(1,047	)	$	(2,026	)
Spread over forward interest rate swap rates	500 bps		(22		)	(45		)	500 bps		(26		)	(53		)

Servicing income amounted to $5 million and $3 million for the three-month periods ending March 31, 2017, and 2016, respectively. The unpaid principal balance of automobile loans serviced for third parties was $1.5 billion and $1.7 billion at March 31, 2017 and December 31, 2016, respectively.

Small Business Administration (SBA) Portfolio

The following table summarizes activity relating to SBA loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
SBA loans sold with servicing retained	$	77,672	$	45,889
Pretax gains resulting from above loan sales (1)	5,818		3,521

(1) Recorded in gain on sale of loans.

Huntington has retained servicing responsibilities on sold SBA loans and receives annual servicing fees on the outstanding loan balances. SBA loan servicing rights are accounted for using the amortization method. A servicing asset is established at fair value at the time of the sale using a discounted future cash flow model. The servicing asset is then amortized against servicing income. Impairment, if any, is recognized when carrying value exceeds the fair value as determined by calculating the present value of expected net future cash flows.

The following tables summarize the changes in the carrying value of the servicing asset for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	21,080		$	19,747
New servicing assets created	1,475			1,511
Amortization and other	(1,156		)	(1,733		)
Carrying value, end of period	$	21,399		$	19,525
Fair value, end of period	$	25,857		$	23,048
Weighted-average life (years)	3.3			3.3

A summary of key assumptions and the sensitivity of the SBA loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	7.40	%	$	(346	)	$	(687	)	7.40	%	$	(324	)	$	(644	)
Discount rate	15.00		(696		)	(1,363		)	15.00		(1,270		)	(1,870		)

Servicing income amounted to $3 million and $2 million for the three-month periods ending March 31, 2017, and 2016, respectively. The unpaid principal balance of SBA loans serviced for third parties was $1.2 billion and $1.1 billion at March 31, 2017 and December 31, 2016, respectively.

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7. LONG-TERM DEBT

In March 2017, the Bank issued $0.7 billion of senior notes at 99.994% of face value. The senior notes mature on March 10, 2020 and have a fixed coupon rate of 2.375%. The senior notes may be redeemed one month prior to the maturity date at 100% of principal plus accrued and unpaid interest. Also, in March 2017, the Bank issued $0.3 billion of senior notes at 100% of face value. The senior notes mature on March 10, 2020 and have a variable coupon rate of three month LIBOR + 51 basis points.

8. OTHER COMPREHENSIVE INCOME

The components of other comprehensive income for the three-month periods ended March 31, 2017 and 2016, were as follows:

	Three Months Ended March 31, 2017
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	810		$	(286	)	$	524
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	8,996			(2,795		)	6,201
Less: Reclassification adjustment for net losses (gains) included in net income	5,874			(2,077		)	3,797
Net change in unrealized holding gains (losses) on available-for-sale debt securities	15,680			(5,158		)	10,522
Net change in unrealized holding gains (losses) on available-for-sale equity securities	—			—			—
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	(1,831		)	641			(1,190		)
Less: Reclassification adjustment for net (gains) losses included in net income	560			(196		)	364
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	(1,271		)	445			(826		)
Net change in pension and other post-retirement obligations	708			(248		)	460
Total other comprehensive income (loss)	$	15,117		$	(4,961	)	$	10,156

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	Three Months Ended March 31, 2016
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	(3,634	)	$	1,285		$	(2,349	)
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	80,468			(28,685		)	51,783
Less: Reclassification adjustment for net losses (gains) included in net income	(464		)	164			(300		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	76,370			(27,236		)	49,134
Net change in unrealized holding gains (losses) on available-for-sale equity securities	104			(36		)	68
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	14,229			(4,980		)	9,249
Less: Reclassification adjustment for net (gains) losses included in net income	(644		)	224			(420		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	13,585			(4,756		)	8,829
Net change in pension and other post-retirement obligations	1,293			(452		)	841
Total other comprehensive income (loss)	$	91,352		$	(32,480	)	$	58,872

The following table presents activity in accumulated other comprehensive income (loss), net of tax, for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Unrealized gains and (losses) on debt securities (1)			Unrealized gains and (losses) on equity securities		Unrealized gains and (losses) on cash flow hedging derivatives			Unrealized gains (losses) for pension and other post- retirement obligations			Total
December 31, 2015	$	8,361		$	176	$	(3,948	)	$	(230,747	)	$	(226,158	)
Other comprehensive income before reclassifications	49,434			68		9,249			—			58,751
Amounts reclassified from accumulated OCI to earnings	(300		)	—		(420		)	841			121
Period change	49,134			68		8,829			841			58,872
March 31, 2016	$	57,495		$	244	$	4,881		$	(229,906	)	$	(167,286	)
December 31, 2016	$	(192,764	)	$	287	$	(2,634	)	$	(205,905	)	$	(401,016	)
Other comprehensive income before reclassifications	6,725			—		(1,190		)	—			5,535
Amounts reclassified from accumulated OCI to earnings	3,797			—		364			460			4,621
Period change	10,522			—		(826		)	460			10,156
March 31, 2017	$	(182,242	)	$	287	$	(3,460	)	$	(205,445	)	$	(390,860	)

(1) Amounts at March 31, 2017 and December 31, 2016 include $81 million and $82 million, respectively, of net unrealized gains on securities transferred from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. The net unrealized gains will be recognized in earnings over the remaining life of the security using the effective interest method.

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The following table presents the reclassification adjustments out of accumulated OCI included in net income and the impacted line items as listed on the Unaudited Condensed Consolidated Statements of Income for the three-month periods ended March 31, 2017 and 2016:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
	Three Months Ended
(dollar amounts in thousands)	March 31, 2017			March 31, 2016
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	(3,606	)	$	464		Interest income - held-to-maturity securities - taxable
Realized gain (loss) on sale of securities	(2,244		)	—			Noninterest income - net gains (losses) on sale of securities
OTTI recorded	(24		)	—			Noninterest income - net gains (losses) on sale of securities
	(5,874		)	464			Total before tax
	2,077			(164		)	Tax (expense) benefit
	$	(3,797	)	$	300		Net of tax
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	(560	)	$	645		Interest income - loans and leases
Interest rate contracts	—			(1		)	Noninterest income - other income
	(560		)	644			Total before tax
	196			(224		)	Tax (expense) benefit
	$	(364	)	$	420		Net of tax
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(1,200	)	$	(1,785	)	Noninterest expense - personnel costs
Prior service credit	492			492			Noninterest expense - personnel costs
	(708		)	(1,293		)	Total before tax
	248			452			Tax (expense) benefit
	$	(460	)	$	(841	)	Net of tax

9. EARNINGS PER SHARE

Basic earnings per share is the amount of earnings (adjusted for dividends declared on preferred stock) available to each share of common stock outstanding during the reporting period. Diluted earnings per share is the amount of earnings available to each share of common stock outstanding during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares include incremental shares issued for stock options, restricted stock units and awards, distributions from deferred compensation plans, and the conversion of the Company’s convertible preferred. Potentially dilutive common shares are excluded from the computation of diluted earnings per share in periods in which the effect would be antidilutive. For diluted earnings per share, net income available to common shares can be affected by the conversion of the Company’s convertible preferred stock. Where the effect of this conversion would be dilutive, net income available to common shareholders is adjusted by the associated preferred dividends and deemed dividend. The calculation of basic and diluted earnings per share for the three-month periods ended March 31, 2017 and 2016, was as follows:

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	Three Months Ended March 31,
(dollar amounts in thousands, except per share amounts)	2017			2016
Basic earnings per common share:
Net income	$	208,094		$	171,314
Preferred stock dividends	(18,878		)	(7,998		)
Net income available to common shareholders	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Basic earnings per common share	$	0.17		$	0.21
Diluted earnings per common share:
Net income available to common shareholders	$	189,216		$	163,316
Effect of assumed preferred stock conversion	—			—
Net income applicable to diluted earnings per share	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Dilutive potential common shares:
Stock options and restricted stock units and awards	19,139			10,385
Shares held in deferred compensation plans	2,953			2,075
Other	151			134
Dilutive potential common shares:	22,243			12,594
Total diluted average common shares issued and outstanding	1,108,617			808,349
Diluted earnings per common share	$	0.17		$	0.20

For the three-month periods ended March 31, 2017 and 2016, approximately 0.9 million and 3.5 million, respectively, of options to purchase shares of common stock were not included in the computation of diluted earnings per share because the effect would be antidilutive.

10. BENEFIT PLANS

Huntington sponsors a non-contributory defined benefit pension plan covering substantially all employees hired or rehired prior to January 1, 2010. The plan, which was modified in 2013 and no longer accrues service benefits to participants, provides benefits based upon length of service and compensation levels. The funding policy of Huntington is to contribute an annual amount that is at least equal to the minimum funding requirements but not more than the amount deductible under the Internal Revenue Code. There is no required minimum contribution for 2017.

In addition, Huntington has an unfunded defined benefit post-retirement plan that provides certain healthcare and life insurance benefits to retired employees who have attained the age of 55 and have at least 10 years of vesting service under this plan. For additional information on benefit plans, see the Benefit Plan footnote in our 2016 Form 10-K.

As part of the FirstMerit acquisition, Huntington agreed to assume and honor all FirstMerit benefit plans. The FirstMerit Pension Plan was frozen for nonvested employees and closed to new entrants after December 31, 2006. Effective December 31, 2012, the FirstMerit Pension Plan was frozen for vested employees. Additionally, FirstMerit had a post-retirement benefit plan which provided medical and life insurance for retired employees.

The following table shows the components of net periodic (benefit) cost for all plans:

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	Pension Benefits								Post Retirement Benefits
	Three Months Ended March 31,								Three Months Ended March 31,
(dollar amounts in thousands)	2017					2016			2017					2016
Service cost	$	640				$	1,025		$	22				$	—
Interest cost	7,477					6,748			99					55
Expected return on plan assets	(13,803		)			(10,223		)	—					—
Amortization of prior service cost	—					—			(492		)			(492		)
Amortization of (gain) loss	1,747					1,864			(55		)			(72		)
Settlements	2,500					3,400			—					—
Net periodic (benefit) cost	$	(1,439	)	(1	)	$	2,814		$	(426	)	(1	)	$	(509	)

(1) Includes expense associated with FirstMerit plans.

Huntington has a defined contribution plan that is available to eligible employees. Huntington matches participant contributions, up to the first 4% of base pay contributed to the defined contribution plan. For 2016, a discretionary profit-sharing contribution equal to 1% of eligible participants’ 2016 base pay was awarded during the 2017 first quarter. Huntington's expense related to the defined contribution plans during the first quarter 2017 and 2016 was $11 million and $8 million, respectively.

11. FAIR VALUES OF ASSETS AND LIABILITIES

See Note 17 “Fair Value of Assets and Liabilities” to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2016 for a description of additional valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the three-month periods ended March 31, 2017 and 2016.

Assets and Liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2017 and December 31, 2016 are summarized below:

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	423,324	$	—	$	—		$	423,324
Loans held for investment	—		54,123		44,219		—			98,342
Trading account securities:
Municipal securities	—		3,434		—		—			3,434
Other securities	94,201		150		—		—			94,351
	94,201		3,584		—		—			97,785
Available-for-sale and other securities:
U.S. Treasury securities	6,890		—		—		—			6,890
Federal agencies: Mortgage-backed	—		11,221,867		—		—			11,221,867
Federal agencies: Other agencies	—		89,843		—		—			89,843
Municipal securities	—		449,502		2,867,652		—			3,317,154
Asset-backed securities	—		707,445		59,492		—			766,937
Corporate debt	—		198,681		—		—			198,681
Other securities	15,632		3,973		—		—			19,605
	22,522		12,671,311		2,927,144		—			15,620,977
MSRs	—		—		13,307		—			13,307
Derivative assets	—		342,584		9,439		(173,603		)	178,420
Liabilities
Derivative liabilities	—		322,999		6,745		(246,192		)	83,552
Short-term borrowings	1,420		—		—		—			1,420

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	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	438,224	$	—	$	—		$	438,224
Loans held for investment	—		34,439		47,880		—			82,319
Trading account securities:
Municipal securities	—		1,148		—		—			1,148
Other securities	132,147		—		—		—			132,147
	132,147		1,148		—		—			133,295
Available-for-sale and other securities:
U.S. Treasury securities	5,497		—		—		—			5,497
Federal agencies: Mortgage-backed	—		10,673,342		—		—			10,673,342
Federal agencies: Other agencies	—		73,542		—		—			73,542
Municipal securities	—		452,013		2,798,044		—			3,250,057
Asset-backed securities	—		717,478		76,003		—			793,481
Corporate debt	—		198,683		—		—			198,683
Other securities	16,588		3,943		—		—			20,531
	22,085		12,119,001		2,874,047		—			15,015,133
MSRs	—		—		13,747		—			13,747
Derivative assets	—		414,412		5,747		(181,940		)	238,219
Liabilities
Derivative liabilities	—		362,777		7,870		(272,361		)	98,286
Short-term borrowings	474		—		—		—			474

(1) Amounts represent the impact of legally enforceable master netting agreements that allow the Company to settle positive and negative positions and cash collateral held or placed with the same counterparties.

The tables below present a rollforward of the balance sheet amounts for the three-month periods ended March 31, 2017 and 2016, for financial instruments measured on a recurring basis and classified as Level 3. The classification of an item as Level 3 is based on the significance of the unobservable inputs to the overall fair value measurement. However, Level 3 measurements may also include observable components of value that can be validated externally. Accordingly, the gains and losses in the table below include changes in fair value due in part to observable factors that are part of the valuation methodology.

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	Level 3 Fair Value Measurements Three months ended March 31, 2017
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(333		)	—			—			—
Total gains/losses for the period:
Included in earnings	(440		)	5,150			(1,386		)	28			(63		)
Included in OCI	—			—			20,475			3,172			—
Purchases/originations	—			—			132,666			—			—
Sales	—			—			—			(19,133		)	—
Repayments	—			—			—			—			(3,598		)
Issues	—			—			—			—			—
Settlements	—			—			(82,147		)	(578		)	—
Closing balance	$	13,307		$	2,694		$	2,867,652		$	59,492		$	44,219
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(440	)	$	5,150		$	20,269		$	1,212		$	—

	Level 3 Fair Value Measurements Three months ended March 31, 2016
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	17,585		$	6,056		$	2,095,551		$	100,337		$	1,748
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(915		)	—			—			—
Total gains/losses for the period:
Included in earnings	(2,766		)	5,206			—			—			—
Included in OCI	—			—			11,840			(5,168		)	—
Purchases/originations	—			—			237,450			—			—
Sales	—			—			—			—			—
Repayments	—			—			—			—			(532		)
Issues	—			—			—			—			—
Settlements	—			—			(63,098		)	(840		)	—
Closing balance	$	14,819		$	10,347		$	2,281,743		$	94,329		$	1,216
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(2,766	)	$	5,306		$	—		$	—		$	—

(1) Transfers out of Level 3 represent the settlement value of the derivative instruments (i.e. interest rate lock agreements) that were transferred to loans held for sale, which are classified as Level 2.

The tables below summarize the classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities for the three-month periods ended March 31, 2017 and 2016:

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	Level 3 Fair Value Measurements Three months ended March 31, 2017
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities			Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(440	)	$	5,150	$	—		$	—	$	—
Securities gains (losses)	—			—		(1,386		)	28		—
Interest and fee income	—			—		—			—		—
Noninterest income	—			—		—			—		(63		)
Total	$	(440	)	$	5,150	$	(1,386	)	$	28	$	(63	)

	Level 3 Fair Value Measurements Three months ended March 31, 2016
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(2,766	)	$	5,206	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		—
Interest and fee income	—			—		—		—		—
Noninterest income	—			—		—		—		—
Total	$	(2,766	)	$	5,206	$	—	$	—	$	—

Assets and liabilities under the fair value option

The following table presents the fair value and aggregate principal balance of certain assets and liabilities under the fair value option:

	March 31, 2017
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	423,324	$	408,424	$	14,900		$	—	$	—	$	—
Loans held for investment	98,342		110,234		(11,892		)	8,572		11,507		(2,935		)

	December 31, 2016
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	438,224	$	433,760	$	4,464		$	—	$	—	$	—
Loans held for investment	82,319		91,998		(9,679		)	8,408		11,082		(2,674		)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the three-month periods ended March 31, 2017 and 2016:

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	Net gains (losses) from fair value changes
	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Assets
Loans held for sale	$	9,076		$	4,649
Loans held for investment	(63		)	—

	Gains (losses) included in fair value changes associated with instrument specific credit risk
	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Assets
Loans held for investment	$	—	$	90

Assets and Liabilities measured at fair value on a nonrecurring basis

Certain assets and liabilities may be required to be measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition. These assets and liabilities are not measured at fair value on an ongoing basis; however, they are subject to fair value adjustments in certain circumstances, such as when there is evidence of impairment. For the three months ended March 31, 2017, assets measured at fair value on a nonrecurring basis were as follows:

			Fair Value Measurements Using
(dollar amounts in thousands)	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Total Gains/(Losses) Three months ended March 31, 2017
MSRs	$	176,747	$	—	$	—	$	176,747	$	1,800
Impaired loans	52,367		—		—		52,367		5,267
Other real estate owned	49,887		—		—		49,887		2,363

MSRs accounted for under the amortization method are subject to nonrecurring fair value measurement when the fair value is lower than the carrying amount.

Periodically, Huntington records nonrecurring adjustments of collateral-dependent loans measured for impairment when establishing the ACL. Such amounts are generally based on the fair value of the underlying collateral supporting the loan. Appraisals are generally obtained to support the fair value of the collateral and incorporate measures such as recent sales prices for comparable properties and cost of construction. In cases where the carrying value exceeds the fair value of the collateral less cost to sell, an impairment charge is recognized.

Other real estate owned properties are included in accrued income and other assets and valued based on appraisals and third party price opinions, less estimated selling costs.

Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis

The table below presents quantitative information about the significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at March 31, 2017 and December 31, 2016:

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	Quantitative Information about Level 3 Fair Value Measurements at March 31, 2017
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,307	Discounted cash flow	Constant prepayment rate	8.00% - 30.0% (12.0%)
				Spread over forward interest rate swap rates	3.0% - 10.0% (8.4%)
Derivative assets	9,439		Consensus Pricing	Net market price	-4.7% - 26.7% (2.0%)
Derivative liabilities	6,745			Estimated Pull through %	9.0% - 99.0% (78.0%)
Municipal securities	2,867,652		Discounted cash flow	Discount rate	0.0% - 10.3% (3.7%)
				Cumulative default	0.0% - 38.4% (3.1%)
				Loss given default	5.0% - 90.0% (24.0%)
Asset-backed securities	59,492		Discounted cash flow	Discount rate	5.1% - 12.1% (6.4%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	0.9% - 100% (10.9%)
				Loss given default	85% - 100% (96.1%)
				Cure given deferral	0.0% - 75.0% (32.7%)
Loans held for investment	44,219		Discounted cash flow	Discount rate	5.4% - 16.8% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	176,747		Discounted cash flow	Constant prepayment rate	6.30% - 21.2% (8.1%)
				Spread over forward interest rate swap rates	3.0% - 20.0% (10.6%)
Impaired loans	52,367		Appraisal value	NA	NA
Other real estate owned	49,887		Appraisal value	NA	NA

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	Quantitative Information about Level 3 Fair Value Measurements at December 31, 2016
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,747	Discounted cash flow	Constant prepayment rate	5.63% - 34.4% (10.9%)
				Spread over forward interest rate swap rates	3.0% - 9.2% (5.4%)
Derivative assets	5,747		Consensus Pricing	Net market price	-7.1% - 25.4% (1.1%)
Derivative liabilities	7,870			Estimated Pull through %	8.1% - 99.8% (76.9%)
Municipal securities	2,798,044		Discounted cash flow	Discount rate	0.0% - 10.0% (3.6%)
				Cumulative default	0.3% - 37.8% (4.0%)
				Loss given default	5.0% - 80.0% (24.1%)
Asset-backed securities	76,003		Discounted cash flow	Discount rate	5.0% - 12.0% (6.3%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	1.1% - 100% (11.2%)
				Loss given default	85% - 100% (96.3%)
				Cure given deferral	0.0% - 75.0% (36.2%)
Loans held for investment	47,880		Discounted cash flow	Constant prepayment rate	5.4% - 16.2% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	171,309		Discounted cash flow	Constant prepayment rate	5.57% - 30.4% (7.8%)
				Spread over forward interest rate swap rates	4.2% - 20.0% (11.7%)
Impaired loans	53,818		Appraisal value	NA	NA
Other real estate owned	50,930		Appraisal value	NA	NA

The following provides a general description of the impact of a change in an unobservable input on the fair value measurement and the interrelationship between unobservable inputs, where relevant/significant. Interrelationships may also exist between observable and unobservable inputs. Such relationships have not been included in the discussion below.

A significant change in the unobservable inputs may result in a significant change in the ending fair value measurement of Level 3 instruments. In general, prepayment rates increase when market interest rates decline and decrease when market interest rates rise and higher prepayment rates generally result in lower fair values for MSR assets, Asset-backed securities, and Automobile loans.

Credit loss estimates, such as probability of default, constant default, cumulative default, loss given default, cure given deferral, and loss severity, are driven by the ability of the borrowers to pay their loans and the value of the underlying collateral and are impacted by changes in macroeconomic conditions, typically increasing when economic conditions worsen and decreasing when conditions improve. An increase in the estimated prepayment rate typically results in a decrease in estimated credit losses and vice versa. Higher credit loss estimates generally result in lower fair values. Credit spreads generally increase when liquidity risks and market volatility increase and decrease when liquidity conditions and market volatility improve.

Discount rates and spread over forward interest rate swap rates typically increase when market interest rates increase and/or credit and liquidity risks increase and decrease when market interest rates decline and/or credit and liquidity conditions improve. Higher discount rates and credit spreads generally result in lower fair market values.

Net market price and pull through percentages generally increase when market interest rates increase and decline when market interest rates decline. Higher net market price and pull through percentages generally result in higher fair values.

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Fair values of financial instruments

The following table provides the carrying amounts and estimated fair values of Huntington’s financial instruments that are carried either at fair value or cost at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and short-term assets	$	1,371,868	$	1,371,868	$	1,443,037	$	1,443,037
Trading account securities	97,785		97,785		133,295		133,295
Loans held for sale	518,238		522,121		512,951		515,640
Available-for-sale and other securities	16,173,605		16,173,605		15,562,837		15,562,837
Held-to-maturity securities	7,533,517		7,502,102		7,806,939		7,787,268
Net loans and direct financing leases	66,425,689		66,275,735		66,323,583		66,294,639
Derivatives	178,420		178,420		238,219		238,219
Financial Liabilities
Deposits	77,422,510		78,238,093		75,607,717		76,161,091
Short-term borrowings	1,263,430		1,263,430		3,692,654		3,692,654
Long-term debt	9,279,140		9,419,853		8,309,159		8,387,444
Derivatives	83,552		83,552		98,286		98,286

The following table presents the level in the fair value hierarchy for the estimated fair values of only Huntington’s financial instruments that are not already on the Unaudited Condensed Consolidated Balance Sheets at fair value at March 31, 2017 and December 31, 2016:

	Estimated Fair Value Measurements at Reporting Date Using						March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,502,102	$	—	$	7,502,102
Net loans and direct financing leases	—		—		66,275,735		66,275,735
Financial Liabilities
Deposits	—		74,456,322		3,781,771		78,238,093
Short-term borrowings	1,420		—		1,262,010		1,263,430
Long-term debt	—		9,013,768		406,085		9,419,853

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,787,268	$	—	$	7,787,268
Net loans and direct financing leases	—		—		66,294,639		66,294,639
Financial Liabilities
Deposits	—		72,319,328		3,841,763		76,161,091
Short-term borrowings	474		—		3,692,180		3,692,654
Long-term debt	—		7,980,176		407,268		8,387,444

The short-term nature of certain assets and liabilities result in their carrying value approximating fair value. These include trading account securities, customers’ acceptance liabilities, short-term borrowings, bank acceptances outstanding, FHLB advances, and cash and short-term assets, which include cash and due from banks, interest-bearing deposits in banks, and federal funds sold and securities purchased under resale agreements. Loan commitments and letters-of-credit generally have short-term, variable-rate features and contain clauses that limit Huntington’s exposure to changes in customer credit quality.

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Accordingly, their carrying values, which are immaterial at the respective balance sheet dates, are reasonable estimates of fair value.

Certain assets, the most significant being operating lease assets, bank owned life insurance, and premises and equipment, do not meet the definition of a financial instrument and are excluded from this disclosure. Similarly, mortgage and nonmortgage servicing rights, deposit base, and other customer relationship intangibles are not considered financial instruments and are not included above. Accordingly, this fair value information is not intended to, and does not, represent Huntington’s underlying value. Many of the assets and liabilities subject to the disclosure requirements are not actively traded, requiring fair values to be estimated by Management. These estimations necessarily involve the use of judgment about a wide variety of factors, including but not limited to, relevancy of market prices of comparable instruments, expected future cash flows, and appropriate discount rates.

The following methods and assumptions were used by Huntington to estimate the fair value of the remaining classes of financial instruments:

Held-to-maturity securities

Fair values are determined by using models that are based on security-specific details, as well as relevant industry and economic factors. The most significant of these inputs are quoted market prices, and interest rate spreads on relevant benchmark securities.

Loans and Direct Financing Leases

Variable-rate loans that reprice frequently are based on carrying amounts, as adjusted for estimated credit losses. The fair values for other loans and leases are estimated using discounted cash flow analyses and employ interest rates currently being offered for loans and leases with similar terms. The rates take into account the position of the yield curve, as well as an adjustment for prepayment risk, operating costs, and profit. This value is also reduced by an estimate of expected losses and the credit risk associated in the loan and lease portfolio. The valuation of the loan portfolio reflected discounts that Huntington believed are consistent with transactions occurring in the marketplace.

Deposits

Demand deposits, savings accounts, and money market deposits are, by definition, equal to the amount payable on demand. The fair values of fixed-rate time deposits are estimated by discounting cash flows using interest rates currently being offered on certificates with similar maturities.

Debt

Long-term debt is based upon quoted market prices, which are inclusive of Huntington’s credit risk. In the absence of quoted market prices, discounted cash flows using market rates for similar debt with the same maturities are used in the determination of fair value.

12. DERIVATIVE FINANCIAL INSTRUMENTS

Derivative financial instruments are recorded in the Consolidated Balance Sheets as either an asset or a liability (in accrued income and other assets or accrued expenses and other liabilities, respectively) and measured at fair value.

Derivative financial instruments can be designated as accounting hedges under GAAP. Designating a derivative as an accounting hedge allows Huntington to recognize gains and losses, less any ineffectiveness, in the income statement within the same period that the hedged item affects earnings. Gains and losses on derivatives that are not designated to an effective hedge relationship under GAAP immediately impact earnings within the period they occur.

Derivatives used in Asset and Liability Management Activities

Huntington engages in balance sheet hedging activity, principally for asset liability management purposes, to convert fixed rate assets or liabilities into floating rate or vice versa. Balance sheet hedging activity is arranged to receive hedge accounting treatment and is classified as either fair value or cash flow hedges. Fair value hedges are purchased to convert deposits and subordinated and other long-term debt from fixed-rate obligations to floating rate. Cash flow hedges are also used to convert floating rate loans made to customers into fixed rate loans.

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The following table presents the gross notional values of derivatives used in Huntington’s asset and liability management activities at March 31, 2017, identified by the underlying interest rate-sensitive instruments:

(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	2,550,000	$	2,550,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	7,225,000		—		7,225,000
Total notional value at March 31, 2017	$	8,175,000	$	2,550,000	$	10,725,000

The following table presents additional information about the interest rate swaps used in Huntington’s asset and liability management activities at March 31, 2017:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	2,550,000	0.5	$	(4,371	)	1.08	%	1.19	%
Liability conversion swaps
Receive fixed—generic	8,175,000		2.8	(64,090		)	1.51		1.02
Total swap portfolio at March 31, 2017	$	10,725,000	2.3	$	(68,461	)	1.41	%	1.06	%

These derivative financial instruments were entered into for the purpose of managing the interest rate risk of assets and liabilities. Consequently, net amounts receivable or payable on contracts hedging either interest earning assets or interest bearing liabilities were accrued as an adjustment to either interest income or interest expense. The net amounts resulted in an increase to net interest income of $10 million and $21 million for the three-month periods ended March 31, 2017, and 2016, respectively.

In connection with the sale of Huntington’s Class B Visa^® shares, Huntington entered into a swap agreement with the purchaser of the shares. The swap agreement adjusts for dilution in the conversion ratio of Class B shares resulting from the Visa^® litigation. At March 31, 2017, the fair value of the swap liability of $6 million is an estimate of the exposure liability based upon Huntington’s assessment of the potential Visa^® litigation losses.

The following table presents the fair values at March 31, 2017 and December 31, 2016 of Huntington’s derivatives that are designated and not designated as hedging instruments. Amounts in the table below are presented gross without the impact of any net collateral arrangements:

Asset derivatives included in accrued income and other assets:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	42,421	$	46,440
Interest rate contracts not designated as hedging instruments	197,221		213,587
Foreign exchange contracts not designated as hedging instruments	18,431		23,265
Commodities contracts not designated as hedging instruments	73,996		108,026
Equity contracts not designated as hedging instruments	10,081		9,775
Total contracts	$	342,150	$	401,093

Liability derivatives included in accrued expenses and other liabilities:

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(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	110,882	$	99,996
Interest rate contracts not designated as hedging instruments	127,260		143,976
Foreign exchange contracts not designated as hedging instruments	17,285		19,576
Commodities contracts not designated as hedging instruments	70,705		104,328
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	326,132	$	367,876

The changes in fair value of the fair value hedges are, to the extent that the hedging relationship is effective, recorded through earnings and offset against changes in the fair value of the hedged item.

The following table presents the change in fair value for derivatives designated as fair value hedges as well as the offsetting change in fair value on the hedged item:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	—		$	(82	)
Change in fair value of hedged deposits (1)	—			72
Change in fair value of interest rate swaps hedging subordinated notes (2)	(4,708		)	6,804
Change in fair value of hedged subordinated notes (2)	5,403			(6,804		)
Change in fair value of interest rate swaps hedging other long-term debt (2)	(10,282		)	61,032
Change in fair value of hedged other long-term debt (2)	8,535			(59,786		)

(1) Effective portion of the hedging relationship is recognized in Interest expense—deposits in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

(2) Effective portion of the hedging relationship is recognized in Interest expense—subordinated notes and other long-term debt in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

The following table presents the gains and (losses) recognized in OCI and the location in the Unaudited Condensed Consolidated Statements of Income of gains and (losses) reclassified from OCI into earnings for derivatives designated as effective cash flow hedges:

Derivatives in cash flow hedging relationships	Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (after-tax)					Location of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion)
	Three months ended March 31,						Three months ended March 31,
(dollar amounts in thousands)	2017			2016			2017		2016
Interest rate contracts
Loans	$	(1,190	)	$	9,249	Interest and fee income - loans and leases	$	560	$	(645	)
Investment Securities	—			—		Noninterest income - other income	—		1
	$	(1,190	)	$	9,249		$	560	$	(644	)

Reclassified gains and losses on swaps related to loans and investment securities and swaps related to subordinated debt are recorded within interest income and interest expense, respectively. During the next twelve months, Huntington expects to reclassify to earnings approximately $(3) million after-tax of unrealized gains (losses) on cash flow hedging derivatives currently in OCI.

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To the extent these derivatives are effective in offsetting the variability of the hedged cash flows, changes in the derivatives’ fair value will not be included in current earnings but are reported as a component of OCI in the Unaudited Condensed Consolidated Statements of Changes in Shareholders’ Equity. These changes in fair value will be included in earnings of future periods when earnings are also affected by the changes in the hedged cash flows. To the extent these derivatives are not effective, changes in their fair values are immediately included in noninterest income.

The following table presents the gains and (losses) recognized in noninterest income for the ineffective portion of interest rate contracts for derivatives designated as cash flow hedges for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Derivatives in cash flow hedging relationships
Interest rate contracts
Loans	$	(103	)	$	421

Derivatives used in mortgage banking activities

Mortgage loan origination hedging activity

Huntington’s mortgage origination hedging activity is related to the hedging of the mortgage pricing commitments to customers and the secondary sale to third parties. The value of a newly originated mortgage is not firm until the interest rate is committed or locked. The interest rate lock commitments are derivative positions offset by forward commitments to sell loans.

Huntington uses two types of mortgage-backed securities in its forward commitments to sell loans. The first type of forward commitment is a “To Be Announced” (or TBA), the second is a “Specified Pool” mortgage-backed security. Huntington uses these derivatives to hedge the value of mortgage-backed securities until they are sold.

The following table summarizes the derivative assets and liabilities used in mortgage banking activities:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Derivative assets:
Interest rate lock agreements	$	9,439		$	5,747
Forward trades and options	434			13,319
Total derivative assets	9,873			19,066
Derivative liabilities:
Interest rate lock agreements	(565		)	(1,598		)
Forward trades and options	(3,047		)	(1,173		)
Total derivative liabilities	(3,612		)	(2,771		)
Net derivative asset (liability)	$	6,261		$	16,295

MSR hedging activity

Huntington’s MSR economic hedging activity uses securities and derivatives to manage the value of the MSR asset and to mitigate the various types of risk inherent in the MSR asset, including risks related to duration, basis, convexity, volatility, and yield curve. The hedging instruments include forward commitments, interest rate swaps, and options on interest rate swaps.

The total notional value of these derivative financial instruments at March 31, 2017 and December 31, 2016, was $0.2 billion and $0.3 billion, respectively. The total notional amount at March 31, 2017, corresponds to trading assets with a fair value of $1 million and trading liabilities with a fair value of $2 million. Net trading gains and (losses) related to MSR hedging for the three-month periods ended March 31, 2017 and 2016, were $(1) million and $12 million, respectively. These amounts are included in mortgage banking income in the Unaudited Condensed Consolidated Statements of Income.

Derivatives used in trading activities

Various derivative financial instruments are offered to enable customers to meet their financing and investing objectives and for their risk management purposes. Derivative financial instruments used in trading activities consisted of commodity, interest rate, and foreign exchange contracts. The derivative contracts grant the option holder the right to buy or sell an underlying financial instrument for a predetermined price before the contract expires. Huntington may enter into offsetting

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third-party contracts with approved, reputable counterparties with substantially matching terms and currencies in order to economically hedge significant exposure related to derivatives used in trading activities.

The interest rate risk of customer derivatives is mitigated by entering into similar derivatives having offsetting terms with other counterparties. The credit risk to these customers is evaluated and included in the calculation of fair value. Foreign currency derivatives help the customer hedge risk and reduce exposure to fluctuations in exchange rates. Transactions are primarily in liquid currencies with Canadian dollars and Euros comprising a majority of all transactions.

The net fair values of these derivative financial instruments, for which the gross amounts are included in accrued income and other assets or accrued expenses and other liabilities at March 31, 2017 and December 31, 2016, were $81 million and $80 million, respectively. The total notional values of derivative financial instruments used by Huntington on behalf of customers, including offsetting derivatives, were $21.0 billion and $20.6 billion at March 31, 2017 and December 31, 2016, respectively. Huntington’s credit risks from interest rate swaps used for trading purposes were $171 million and $196 million at the same dates, respectively.

Share Swap Economic Hedge

Huntington acquires and holds shares of Huntington common stock in a Rabbi Trust for the Executive Deferred Compensation Plan. Huntington common stock held in the Rabbi Trust is recorded at cost and the corresponding deferred compensation liability is recorded at fair value using Huntington's share price as a significant input.

During the second quarter of 2016, Huntington entered into an economic hedge with a $20 million notional amount to hedge deferred compensation expense related to the Executive Deferred Compensation Plan. The economic hedge is recorded at fair value within other assets or liabilities. Changes in the fair value are recorded directly through other noninterest expense in the Unaudited Condensed Consolidated Statements of Income. At March 31, 2017, the fair value of the share swap was $10 million.

Risk Participation Agreements

Huntington periodically enters into risk participation agreements in order to manage credit risk of its derivative positions. These agreements transfer counterparty credit risk related to interest rate swaps to and from other financial institutions. Huntington can mitigate exposure to certain counterparties or take on exposure to generate additional income. Huntington’s notional exposure for interest rate swaps originated by other financial institutions was $596 million and $582 million at March 31, 2017 and December 31, 2016, respectively. Huntington will make payments under these agreements if a customer defaults on its obligation to perform under the terms of the underlying interest rate derivative contract. The amount Huntington would have to pay if all counterparties defaulted on their swap contracts is the fair value of these risk participations, which was a positive value (receivable) of $4 million and $3 million at March 31, 2017 and December 31, 2016, respectively. These contracts mature between 2017 and 2043 and are deemed investment grade.

Financial assets and liabilities that are offset in the Unaudited Condensed Consolidated Balance Sheets

Huntington records derivatives at fair value as further described in Note 11. Huntington records these derivatives net of any master netting arrangement in the Unaudited Condensed Consolidated Balance Sheets. Collateral agreements are regularly entered into as part of the underlying derivative agreements with Huntington’s counterparties to mitigate counterparty credit risk.

All derivatives are carried on the Unaudited Condensed Consolidated Balance Sheets at fair value. Derivative balances are presented on a net basis taking into consideration the effects of legally enforceable master netting agreements. Cash collateral exchanged with counterparties is also netted against the applicable derivative fair values. Huntington enters into derivative transactions with two primary groups: broker-dealers and banks, and Huntington’s customers. Different methods are utilized for managing counterparty credit exposure and credit risk for each of these groups.

Huntington enters into transactions with broker-dealers and banks for various risk management purposes. These types of transactions generally are high dollar volume. Huntington enters into bilateral collateral and master netting agreements with these counterparties, and routinely exchange cash and high quality securities collateral with these counterparties. Huntington enters into transactions with customers to meet their financing, investing, payment and risk management needs. These types of transactions generally are low dollar volume. Huntington generally enters into master netting agreements with customer counterparties, however collateral is generally not exchanged with customer counterparties.

At March 31, 2017 and December 31, 2016, aggregate credit risk associated with these derivatives, net of collateral that has been pledged by the counterparty, was $27 million and $26 million, respectively. The credit risk associated with interest rate swaps is calculated after considering master netting agreements with broker-dealers and banks.

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At March 31, 2017, Huntington pledged $140 million of investment securities and cash collateral to counterparties, while other counterparties pledged $78 million of investment securities and cash collateral to Huntington to satisfy collateral netting agreements. In the event of credit downgrades, Huntington would not be required to provide additional collateral.

The following tables present the gross amounts of these assets and liabilities with any offsets to arrive at the net amounts recognized in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

Offsetting of Financial Assets and Derivative Assets

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of assets presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
March 31, 2017	Derivatives	$	352,023	$	(173,603	)	$	178,420	$	(20,393	)	$	(11,120	)	$	146,907
December 31, 2016	Derivatives	420,159		(181,940		)	238,219		(34,328		)	(5,428		)	198,463

Offsetting of Financial Liabilities and Derivative Liabilities

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of liabilities presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
March 31, 2017	Derivatives	$	329,744	$	(246,192	)	$	83,552	$	—		$	(21,427	)	$	62,125
December 31, 2016	Derivatives	370,647		(272,361		)	98,286		(7,550		)	(23,943		)	66,793

13. VIEs

Consolidated VIEs

Consolidated VIEs at March 31, 2017, consisted of certain loan and lease securitization trusts. Huntington has determined the trusts are VIEs. Huntington has concluded that it is the primary beneficiary of these trusts because it has the power to direct the activities of the entity that most significantly affect the entity’s economic performance and it has either the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the VIE.

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

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	March 31, 2017
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,565	$	—	$	1,565
Net loans and leases	55,358		—		55,358
Accrued income and other assets	—		275		275
Total assets	$	56,923	$	275	$	57,198
Liabilities:
Other long-term debt	$	45,906	$	—	$	45,906
Accrued interest and other liabilities	—		275		275
Total liabilities	45,906		275		46,181
Equity:
Beneficial Interest owned by third party	11,017		—		11,017
Total liabilities and equity	$	56,923	$	275	$	57,198

	December 31, 2016
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,564	$	—	$	1,564
Net loans and leases	69,825		—		69,825
Accrued income and other assets	—		281		281
Total assets	$	71,389	$	281	$	71,670
Liabilities:
Other long-term debt	$	57,494	$	—	$	57,494
Accrued interest and other liabilities	—		281		281
Total liabilities	57,494		281		57,775
Equity:
Beneficial Interest owned by third party	13,895		—		13,895
Total liabilities and equity	$	71,389	$	281	$	71,670

The loans and leases were designated to repay the securitized notes. Huntington services the loans and leases and uses the proceeds from principal and interest payments to pay the securitized notes during the amortization period. Huntington has not provided financial or other support that was not previously contractually required.

Unconsolidated VIEs

The following tables provide a summary of the assets and liabilities included in Huntington’s Unaudited Condensed Consolidated Financial Statements, as well as the maximum exposure to losses, associated with its interests related to unconsolidated VIEs for which Huntington holds an interest, but is not the primary beneficiary, to the VIE at March 31, 2017, and December 31, 2016:

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	March 31, 2017
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	12,435	$	—	$	12,435
2015-1 Automobile Trust	2,698		—		2,698
Trust Preferred Securities	13,919		252,560		—
Low Income Housing Tax Credit Partnerships	559,819		279,270		559,819
Other Investments	95,033		41,232		95,033
Total	$	683,904	$	573,062	$	669,985

	December 31, 2016
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	14,770	$	—	$	14,770
2015-1 Automobile Trust	2,227		—		2,227
Trust Preferred Securities	13,919		252,552		—
Low Income Housing Tax Credit Partnerships	576,880		292,721		576,880
Other Investments	79,195		42,316		79,195
Total	$	686,991	$	587,589	$	673,072

The following table provides a summary of automobile transfers to trusts in separate securitization transactions.

(dollar amounts in millions)	Year	Amount Transferred
2016-1 Automobile Trust	2016	$	1,500
2015-1 Automobile Trust	2015	750

The securitizations and the resulting sale of all underlying securities qualified for sale accounting. Huntington has concluded that it is not the primary beneficiary of these trusts because it has neither the obligation to absorb losses of the entities that could potentially be significant to the VIEs nor the right to receive benefits from the entities that could potentially be significant to the VIEs. Huntington is not required and does not currently intend to provide any additional financial support to the trusts. Investors and creditors only have recourse to the assets held by the trusts. The interest Huntington holds in the VIEs relates to servicing rights which are included within servicing rights of Huntington’s Unaudited Consolidated Balance Sheets. The maximum exposure to loss is equal to the carrying value of the servicing asset. See Note 6 for more information.

TRUST PREFERRED SECURITIES

Huntington has certain wholly-owned trusts whose assets, liabilities, equity, income, and expenses are not included within Huntington’s Unaudited Condensed Consolidated Financial Statements. These trusts have been formed for the sole purpose of issuing trust-preferred securities, from which the proceeds are then invested in Huntington junior subordinated debentures, which are reflected in Huntington’s Unaudited Condensed Consolidated Balance Sheets as subordinated notes. The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Unaudited Condensed Consolidated Financial Statements. A list of trust preferred securities outstanding at March 31, 2017 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.74	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.76		(3)	32,093		3,093
Sky Financial Capital Trust III	2.55		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.40		(4)	74,320		2,320
Camco Financial Trust	3.59		(5)	4,252		155
Total				$	252,560	$	13,919

(1) Represents the principal amount of debentures issued to each trust, including unamortized original issue discount.

(2) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.70%.

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(3) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.625%.

(4) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.40%.

(5) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.33%.

Each issue of the junior subordinated debentures has an interest rate equal to the corresponding trust securities distribution rate. Huntington has the right to defer payment of interest on the debentures at any time, or from time-to-time for a period not exceeding five years provided that no extension period may extend beyond the stated maturity of the related debentures. During any such extension period, distributions to the trust securities will also be deferred and Huntington’s ability to pay dividends on its common stock will be restricted. Periodic cash payments and payments upon liquidation or redemption with respect to trust securities are guaranteed by Huntington to the extent of funds held by the trusts. The guarantee ranks subordinate and junior in right of payment to all indebtedness of the Company to the same extent as the junior subordinated debt. The guarantee does not place a limitation on the amount of additional indebtedness that may be incurred by Huntington.

LOW INCOME HOUSING TAX CREDIT PARTNERSHIPS

Huntington makes certain equity investments in various limited 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, to facilitate the sale of additional affordable housing product offerings, and to assist in achieving goals associated with the Community Reinvestment Act. The primary activities of the limited partnerships include the identification, development, and operation of multi family housing that is leased to qualifying residential tenants. Generally, these types of investments are funded through a combination of debt and equity.

Huntington uses the proportional amortization method to account for all qualified investments in these entities. These investments are included in accrued income and other assets. Investments that do not meet the requirements of the proportional amortization method are recognized using the equity method. Investment gains/losses related to these investments are included in noninterest-income in the Unaudited Condensed Consolidated Statements of Income.

The following table presents the balances of Huntington’s affordable housing tax credit investments and related unfunded commitments at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Affordable housing tax credit investments	$	870,421		$	877,237
Less: amortization	(310,602		)	(300,357		)
Net affordable housing tax credit investments	$	559,819		$	576,880
Unfunded commitments	$	279,270		$	292,721

The following table presents other information relating to Huntington’s affordable housing tax credit investments for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Tax credits and other tax benefits recognized	$	23,283	$	18,285
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	16,961		12,407
Equity method
Tax credit investment (gains) losses included in non-interest income	109		132

Huntington recognized immaterial impairment losses on tax credit investments during the three-month periods ended March 31, 2017 and 2016. The impairment losses recognized related to the fair value of the tax credit investments that were less than carrying value.

OTHER INVESTMENTS

Other investments determined to be VIE’s include investments in New Market Tax Credit Investments, Historic Tax Credit Investments, Small Business Investment Companies, Rural Business Investment Companies, certain equity method investments and other miscellaneous investments.

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14. COMMITMENTS AND CONTINGENT LIABILITIES

Commitments to extend credit

In the ordinary course of business, Huntington makes various commitments to extend credit that are not reflected in the Unaudited Condensed Consolidated Financial Statements. The contract amounts of these financial agreements at March 31, 2017 and December 31, 2016, were as follows:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Contract amount represents credit risk:
Commitments to extend credit
Commercial	$	15,030,796	$	15,190,056
Consumer	12,523,637		12,235,943
Commercial real estate	1,531,769		1,697,671
Standby letters-of-credit	560,718		637,182
Commercial letters-of-credit	5,160		4,610

Commitments to extend credit generally have fixed expiration dates, are variable-rate, and contain clauses that permit Huntington to terminate or otherwise renegotiate the contracts in the event of a significant deterioration in the customer’s credit quality. These arrangements normally require the payment of a fee by the customer, the pricing of which is based on prevailing market conditions, credit quality, probability of funding, and other relevant factors. Since many of these commitments are expected to expire without being drawn upon, the contract amounts are not necessarily indicative of future cash requirements. The interest rate risk arising from these financial instruments is insignificant as a result of their predominantly short-term, variable-rate nature.

Standby letters-of-credit are conditional commitments issued to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. Most of these arrangements mature within two years. The carrying amount of deferred revenue associated with these guarantees was $7 million and $8 million at March 31, 2017 and December 31, 2016, respectively.

Commercial letters-of-credit represent short-term, self-liquidating instruments that facilitate customer trade transactions and generally have maturities of no longer than 90 days. The goods or cargo being traded normally secures these instruments.

Commitments to sell loans

Activity related to our mortgage origination activity supports the hedging of the mortgage pricing commitments to customers and the secondary sale to third parties. At March 31, 2017 and December 31, 2016, Huntington had commitments to sell residential real estate loans of $855 million and $819 million, respectively. These contracts mature in less than one year.

Litigation

The nature of Huntington’s business ordinarily results in a certain amount of pending as well as threatened claims, litigation, investigations, regulatory and legal and administrative cases, matters and proceedings, all of which are considered incidental to the normal conduct of business. When the Company determines it has meritorious defenses to the claims asserted, it vigorously defends itself. The Company considers settlement of cases when, in Management’s judgment, it is in the best interests of both the Company and its shareholders to do so.

On at least a quarterly basis, Huntington assesses its liabilities and contingencies in connection with threatened and outstanding legal cases, matters and proceedings, utilizing the latest information available. For cases, matters and proceedings where it is both probable the Company will incur a loss and the amount can be reasonably estimated, Huntington establishes an accrual for the loss. Once established, the accrual is adjusted as appropriate to reflect any relevant developments. For cases, matters or proceedings where a loss is not probable or the amount of the loss cannot be estimated, no accrual is established.

In certain cases, matters and proceedings, exposure to loss exists in excess of the accrual to the extent such loss is reasonably possible, but not probable. Management believes an estimate of the aggregate range of reasonably possible losses, in excess of amounts accrued, for current legal proceedings is up to $70 million at March 31, 2017. For certain other cases, and matters, Management cannot reasonably estimate the possible loss at this time. Any estimate involves significant judgment, given the varying stages of the proceedings (including the fact that many of them are currently in preliminary stages), the existence of multiple defendants in several of the current proceedings whose share of liability has yet to be determined, the

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numerous unresolved issues in many of the proceedings, and the inherent uncertainty of the various potential outcomes of such proceedings. Accordingly, Management’s estimate will change from time-to-time, and actual losses may be more or less than the current estimate. $0

While the final outcome of legal cases, matters, and proceedings is inherently uncertain, based on information currently available, advice of counsel, and available insurance coverage, Management believes that the amount it has already accrued is adequate and any incremental liability arising from the Company’s legal cases, matters, or proceedings will not have a material negative adverse effect on the Company’s consolidated financial position as a whole. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these cases, matters, and proceedings, if unfavorable, may be material to the Company’s consolidated financial position in a particular period.

Meoli v. The Huntington National Bank (Cyberco Litigation). The Bank has been named a defendant in a lawsuit arising from the Banks’s commercial lending, depository, and equipment leasing relationships with Cyberco Holdings, Inc. (Cyberco), based in Grand Rapids, Michigan. In November 2004, an equipment leasing fraud was uncovered, whereby Cyberco sought financing from equipment lessors and financial institutions, including Huntington, allegedly to purchase computer equipment from Teleservices Group, Inc. (Teleservices). Cyberco created fraudulent documentation to close the financing transactions when, in fact, no computer equipment was ever purchased or leased from Teleservices, which later proved to be a shell corporation. Bankruptcy proceedings for both Cyberco and Teleservices later ensued.

On September 28, 2015, adopting the bankruptcy court's recommendation, the U.S. District Court for the Western District of Michigan entered a judgment against Huntington in the amount of $72 million plus costs and pre- and post-judgment interest. Huntington increased its legal reserve by approximately $38 million to fully accrue for the amount of the judgment in the third quarter of 2015 while appealing the decision to the U.S. Sixth Circuit Court of Appeals. On February 8, 2017, the appellate court reversed the district court decision in part and remanded the case to the district court for further proceedings. Consistent with its reading of the appellate court opinion, Huntington decreased its legal reserve by approximately $42 million in the fourth quarter of 2016.

Powell v. Huntington National Bank.  Huntington is a defendant in a class action filed on October 15, 2013 alleging Huntington charged late fees on mortgage loans in a method that violated West Virginia law and the loan documents. Plaintiffs seek statutory civil penalties, compensatory damages and attorney’s fees. Huntington filed a motion for summary judgment on the plaintiffs’ claims, which was granted by the U.S. District Court on December 28, 2016.  Plaintiffs have filed a notice of appeal to the U.S. Fourth Circuit Court of Appeals.

FirstMerit Overdraft Litigation. Commencing in December 2010, two separate lawsuits were filed in the Summit County Court of Common Pleas and the Lake County Court of Common Pleas against FirstMerit. The complaints were brought as class actions on behalf of Ohio residents who maintained a checking account at FirstMerit and who incurred one or more overdraft fees as a result of the alleged re-sequencing of debit transactions. The parties have reached a global settlement for approximately $9 million cash to a common fund plus an additional $7 million in debt forgiveness. Attorneys' fees will be paid from the fund, with any remaining funds going to charity. FirstMerit’s insurer has agreed to reimburse Huntington 49% of the approximately $9 million, which totals approximately $4.4 million. The court preliminarily approved the settlement on December 5, 2016 and the cash portion of the settlement was funded on December 12, 2016. The final approval hearing is scheduled for June 2, 2017.

15. SEGMENT REPORTING

Our business segments are based on our internally-aligned segment leadership structure, which is how we monitor results and assess performance. We have five major business segments: Consumer and Business Banking, Commercial Banking, Commercial Real Estate and Vehicle Finance(CREVF), Regional Banking and The Huntington Private Client Group(RBHPCG), and Home Lending. The Treasury / Other function includes our technology and operations, other unallocated assets, liabilities, revenue, and expense.

Business segment results are determined based upon our management reporting system, which assigns balance sheet and income statement items to each of the business segments. The process is designed around our organizational and management structure and, accordingly, the results derived are not necessarily comparable with similar information published by other financial institutions. Additionally, because of the interrelationships of the various segments, the information presented is not indicative of how the segments would perform if they operated as independent entities.

Revenue is recorded in the business segment responsible for the related product or service. Fee sharing is recorded to allocate portions of such revenue to other business segments involved in selling to, or providing service to customers. Results of operations for the business segments reflect these fee sharing allocations.

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The management accounting process that develops the business segment reporting utilizes various estimates and allocation methodologies to measure the performance of the business segments. Expenses are allocated to business segments using a two-phase approach. The first phase consists of measuring and assigning unit costs (activity-based costs) to activities related to product origination and servicing. These activity-based costs are then extended, based on volumes, with the resulting amount allocated to business segments that own the related products. The second phase consists of the allocation of overhead costs to all five business segments from Treasury / Other. We utilize a full-allocation methodology, where all Treasury / Other expenses, except reported Significant Items, and a small amount of other residual unallocated expenses, are allocated to the five business segments.

The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike financial accounting, are not based on authoritative guidance similar to GAAP. As a result, reported segment results are not necessarily comparable with similar information reported by other financial institutions. Furthermore, changes in management structure or allocation methodologies and procedures result in changes in reported segment
financial data. Accordingly, certain amounts have been reclassified to conform to the current period presentation.

We use an active and centralized Funds Transfer Pricing (FTP) methodology to attribute appropriate income to the business segments. The intent of the FTP methodology is to transfer interest rate risk from the business segments by providing matched duration funding of assets and liabilities. The result is to centralize the financial impact, management, and reporting of interest rate risk in the Treasury / Other function where it can be centrally monitored and managed. The Treasury / Other function charges (credits) an internal cost of funds for assets held in (or pays for funding provided by) each business segment. The FTP rate is based on prevailing market interest rates for comparable duration assets (or liabilities).

We recently announced a reorganization among our executive leadership team, which will become effective during the 2017 second quarter. As a result, management is currently evaluating the business segment structure which may impact how we monitor future results and assess performance.

Consumer and Business Banking - The Consumer and Business Banking segment provides a wide array of financial products and services to consumer and small business customers including but not limited to checking accounts, savings accounts, money market accounts, certificates of deposit, consumer loans, credit cards, and small business loans. Other financial services available to consumer and small business customers include mortgages, insurance, interest rate risk protection, foreign exchange, and treasury management. Business Banking is defined as serving companies with revenues up to $20 million and consists of approximately 254,000 businesses.

Commercial Banking - Through a relationship banking model, this segment provides a wide array of products and services to the middle market, large corporate, and government public sector customers located primarily within our geographic footprint. The segment is divided into seven business units: middle market, large corporate, specialty banking, asset finance, capital markets, treasury management, and insurance.

Commercial Real Estate and Vehicle Finance - This segment provides lending and other banking products and services to customers outside of our traditional retail and commercial banking segments. Our products and services include providing financing for the purchase of automobiles, light-duty trucks, recreational vehicles and marine craft at franchised dealerships, financing the acquisition of new and used vehicle inventory of franchised automotive dealerships, and financing for land, buildings, and other commercial real estate owned or constructed by real estate developers, automobile dealerships, or other customers with real estate project financing needs. Products and services are delivered through highly specialized relationship-focused bankers and product partners.

Regional Banking and The Huntington Private Client Group - The core business of The Huntington Private Client Group is The Huntington Private Bank, which consists of Private Banking, Wealth & Investment Management, and Retirement plan services. The Huntington Private Bank provides high net-worth customers with deposit, lending (including specialized lending options), and banking services. The Huntington Private Bank also delivers wealth management and legacy planning through investment and portfolio management, fiduciary administration, and trust services. This group also provides retirement plan services to corporate businesses. The Huntington Private Client Group also provides corporate trust services and institutional and mutual fund custody services.

Home Lending - Home Lending originates and services consumer loans and mortgages for customers who are generally located in our primary banking markets. Consumer and mortgage lending products are primarily distributed through the Consumer and Business Banking and Regional Banking and The Huntington Private Client Group segments, as well as through commissioned loan originators. Home Lending earns interest on portfolio loans held-for-sale, earns fee income from the origination and servicing of mortgage loans, and recognizes gains or losses from the sale of mortgage loans. Home Lending supports the origination and servicing of mortgage loans across all segments.

Listed below is certain operating basis financial information reconciled to Huntington’s March 31, 2017, December 31, 2016, and March 31, 2016, reported results by business segment:

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	Three Months Ended March 31,
Income Statements	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
(dollar amounts in thousands)
2017
Net interest income	$	393,496	$	174,563	$	139,333		$	46,649		$	15,215		$	(39,281	)	$	729,975
Provision for credit losses	31,294		22,137		9,549			2,771			1,887			—			67,638
Noninterest income	146,790		69,487		11,209			36,170			23,981			24,826			312,463
Noninterest expense	374,083		114,970		50,359			52,162			34,655			81,193			707,422
Income taxes	47,218		37,430		31,722			9,760			929			(67,775		)	59,284
Net income	$	87,691	$	69,513	$	58,912		$	18,126		$	1,725		$	(27,873	)	$	208,094
2016
Net interest income	$	264,529	$	105,350	$	95,597		$	34,923		$	12,985		$	(10,318	)	$	503,066
Provision (reduction in allowance) for credit losses	12,177		35,054		(16,649		)	(725		)	(2,274		)	(1		)	27,582
Noninterest income	120,257		58,916		7,311			24,717			11,503			19,163			241,867
Noninterest expense	280,121		92,995		40,206			40,503			24,593			12,662			491,080
Income taxes	32,371		12,676		27,773			6,952			759			(25,574		)	54,957
Net income	$	60,117	$	23,541	$	51,578		$	12,910		$	1,410		$	21,758		$	171,314

	Assets at				Deposits at
(dollar amounts in thousands)	March 31, 2017		December 31, 2016		March 31, 2017		December 31, 2016
Consumer & Business Banking	$	21,747,257	$	21,831,681	$	45,802,879	$	44,724,252
Commercial Banking	24,233,720		24,236,490		19,041,629		18,053,208
CREVF	23,953,670		23,576,832		1,890,433		1,893,072
RBHPCG	5,280,791		5,213,530		5,981,930		6,214,250
Home Lending	3,524,718		3,502,069		349,765		631,494
Treasury / Other	21,305,350		21,353,495		4,355,874		4,091,441
Total	$	100,045,506	$	99,714,097	$	77,422,510	$	75,607,717

Item 3: Quantitative and Qualitative Disclosures about Market Risk

Quantitative and qualitative disclosures for the current period can be found in the Market Risk section of this report, which includes changes in market risk exposures from disclosures presented in Huntington’s 2016 Form 10-K.

Item 4: Controls and Procedures

Disclosure Controls and Procedures

Huntington maintains disclosure controls and procedures designed to ensure that the information required to be disclosed in the reports that it files or submits under the Securities Exchange Act of 1934, as amended, are recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by an issuer in the reports that it files or submits under the Exchange Act is accumulated and communicated to the issuer’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Huntington’s Management, with the participation of its Chief Executive Officer and the Chief Financial Officer, evaluated the effectiveness of Huntington’s disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based upon such evaluation, Huntington’s Chief Executive Officer and Chief Financial Officer have concluded that, as of the end of such period, Huntington’s disclosure controls and procedures were effective.

There have not been any changes in Huntington’s internal controls over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the fiscal quarter to which this report relates that have materially affected, or are reasonably likely to materially affect, Huntington’s internal controls over financial reporting.

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PART II. OTHER INFORMATION

In accordance with the instructions to Part II, the other specified items in this part have been omitted because they are not applicable or the information has been previously reported.

Item 1: Legal Proceedings

Information required by this item is set forth in Note 14 of the Notes to Unaudited Condensed Consolidated Financial Statements included in Item 1 of this report and incorporated herein by reference.

Item 1A: Risk Factors

Information required by this item is set forth in Part 1 Item 2- Management’s Discussion and Analysis of Financial Condition and Results of Operations of this report and incorporated herein by reference.

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Item 6. Exhibits

Exhibit Index

This report incorporates by reference the documents listed below that we have previously filed with the SEC. The SEC allows us to incorporate by reference information in this document. The information incorporated by reference is considered to be a part of this document, except for any information that is superseded by information that is included directly in this document.

This information may be read and copied at the Public Reference Room of the SEC at 100 F Street, N.E., Washington, D.C. 20549. The SEC also maintains an Internet web site that contains reports, proxy statements, and other information about issuers, like us, who file electronically with the SEC. The address of the site is http://www.sec.gov. The reports and other information filed by us with the SEC are also available at our Internet web site. The address of the site is http://www.huntington.com. Except as specifically incorporated by reference into this Quarterly Report on Form 10-Q, information on those web sites is not part of this report. You also should be able to inspect reports, proxy statements, and other information about us at the offices of the NASDAQ National Market at 33 Whitehall Street, New York, New York.

Exhibit Number	Document Description	Report or Registration Statement	SEC File or Registration Number	Exhibit Reference
3.1	Articles of Restatement of Charter.	Annual Report on Form 10-K for the year ended December 31, 1993	000-02525	3	(i)
3.2	Articles of Amendment to Articles of Restatement of Charter.	Current Report on Form 8-K dated May 31, 2007	000-02525	3.1
3.3	Articles of Amendment to Articles of Restatement of Charter.	Current Report on Form 8-K dated May 7, 2008	000-02525	3.1
3.4	Articles of Amendment to Articles of Restatement of Charter.	Current Report on Form 8-K dated April 27, 2010	001-34073	3.1
3.5	Articles Supplementary of Huntington Bancshares Incorporated, as of April 22, 2008.	Current Report on Form 8-K dated April 22, 2008	000-02525	3.1
3.6	Articles Supplementary of Huntington Bancshares Incorporated, as of April 22. 2008.	Current Report on Form 8-K dated April 22, 2008	000-02525	3.2
3.7	Articles Supplementary of Huntington Bancshares Incorporated, as of November 12, 2008.	Current Report on Form 8-K dated November 12, 2008	001-34073	3.1
3.8	Articles Supplementary of Huntington Bancshares Incorporated, as of December 31, 2006.	Annual Report on Form 10-K for the year ended December 31, 2006	000-02525	3.4
3.9	Articles Supplementary of Huntington Bancshares Incorporated, as of December 28, 2011.	Current Report on Form 8-K dated December 28, 2011.	001-34073	3.1
3.10	Articles Supplementary of Huntington Bancshares Incorporated, as of March 18, 2016.	Current Report on Form 8-K dated March 21, 2016.	001-34073	3.1
3.11	Articles Supplementary of Huntington Bancshares Incorporated, as of May 3, 2016.	Current Report on Form 8-K dated May 5, 2016.	001-34073	3.2
3.12	Articles Supplementary of Huntington Bancshares Incorporated, effective as of August 15, 2016.	Registration Statement on Form 8-A dated August 15, 2016	001-34073	3.12
3.13	Bylaws of Huntington Bancshares Incorporated, as amended and restated, as of July 16, 2014.	Current Report on Form 8-K dated July 17, 2014	001-34073	3.1

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4.1	Instruments defining the Rights of Security Holders—reference is made to Articles Fifth, Eighth, and Tenth of Articles of Restatement of Charter, as amended and supplemented. Instruments defining the rights of holders of long-term debt will be furnished to the Securities and Exchange Commission upon request.
10.1	* Director Deferred Compensation Plan
10.2	* First Amendment to the 2015 Long-Term Incentive Plan
31.1	**Rule 13a-14(a) Certification – Chief Executive Officer.
31.2	**Rule 13a-14(a) Certification – Chief Financial Officer.
32.1	***Section 1350 Certification – Chief Executive Officer.
32.2	***Section 1350 Certification – Chief Financial Officer.
101	**The following material from Huntington’s Form 10-Q Report for the quarterly period ended March 31, 2017, formatted in XBRL: (1) Unaudited Condensed Consolidated Balance Sheets, (2) Unaudited Condensed Consolidated Statements of Income, (3) Unaudited Condensed Consolidated Statements of Comprehensive Income (4) Unaudited Condensed Consolidated Statement of Changes in Shareholders’ Equity, (5) Unaudited Condensed Consolidated Statements of Cash Flows, and (6) the Notes to Unaudited Condensed Consolidated Financial Statements.

*	Denotes management contract or compensatory plan or arrangement
**	Filed herewith
***	Furnished herewith

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Huntington Bancshares Incorporated

(Registrant)

Date:	April 28, 2017	/s/ Stephen D. Steinour
		Stephen D. Steinour
		Chairman, Chief Executive Officer and President
Date:	April 28, 2017	/s/ Howell D. McCullough III
		Howell D. McCullough III
		Chief Financial Officer

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EX-10.1

Exhibit 10.1

HUNTINGTON BANCSHARES INCORPORATED

DIRECTOR DEFERRED COMPENSATION PLAN

This Plan is hereby established effective January 1, 2017.

ARTICLE I

BACKGROUND AND PURPOSES

1.1Background and Purposes. The Corporation previously maintained the Deferred Compensation Plan and Trust for Huntington Bancshares Incorporated Directors (the “Prior Plan”). The Corporation desires that effective January 1, 2017, a new plan be adopted to potentially expand participation in the deferred compensation program to formally elected directors on the Corporation’s Board, and, when and if selected, members of certain Affiliate board of directors, and members of the Corporation’s various advisory boards. Accordingly, this Plan is effective for all deferrals of Compensation earned on or after January 1, 2017. The Prior Plan shall be frozen as of January 1, 2017. Any deferrals made before January 1, 2017, shall be governed under the Prior Plan.

The purposes of the Plan are (i) to provide a select group of Directors with flexibility with respect to the form and timing of the payment of Compensation, (ii) to more closely align the interests of Directors with the interests of the Corporation's shareholders, and (iii) to assist the Corporation and its Affiliates in attracting and retaining qualified individuals to serve as Directors.

ARTICLE II

DEFINITIONS

Whenever used in the Plan, the following terms shall have the meaning set forth or referenced below:

2.1Account. “Account” means an entry on the records of the Corporation equal to the amount to be paid to the Participant or his or her Beneficiary under this Plan. Where appropriate, reference to a Participant’s Account shall include reference to each applicable Cash Deferral Subaccount, LTIP Deferral Subaccount and Transferred DSU Subaccount. The Account shall be a bookkeeping entry only and shall be utilized solely as a device for the measurement and determination of the amounts to be paid to a Participant, or his or her Beneficiary, pursuant to this Plan.

2.2Affiliates. “Affiliates” means affiliated or subsidiary entities of the Corporation as defined in Code Sections 414(b) and (c).

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2.3Aggregated Plan. “Aggregated Plan” means any agreement, method, program or other arrangement that, along with the Plan, would be treated as a single nonqualified deferred compensation plan under Code Section 409A.

2.4Beneficiary. “Beneficiary” means the person, persons, or entity (including without limitation any trustee) last designated by the Participant to receive benefits specified hereunder in the event of the Participant's death.

2.5Beneficiary Designation Form. “Beneficiary Designation Form” shall mean the form established from time to time by the Committee that a Participant completes, signs and returns to the Committee to designate one or more Beneficiaries.

2.6Board. “Board” means the Board of Directors of the Corporation.

2.7Business Day. “Business Day” means a day, except for a Saturday, Sunday, a legal holiday or a day when the primary stock exchange on which the Common Stock is traded is not open.

2.8Cash Deferral Sub-Account. “Cash Deferral Sub-Account” means the sub-account or the sub-accounts maintained under this Plan with respect to amounts deferred by a Participant that otherwise would have been paid to a Participant as cash fees.

2.9Code. “Code” means the Internal Revenue Code of 1986, as amended, and including any rules or regulations promulgated thereunder.

2.10Committee. “Committee” means the Compensation Committee of the Board.

2.11Common Stock. “Common Stock” means the common shares, $0.01 par value, of the Corporation.

2.12Compensation. “Compensation” means all fees payable to a Director for services to the Corporation and/or an Affiliate as a Director, including any cash retainers or fees and any LTIP Awards payable to a Director.

2.13Corporation. “Corporation” means Huntington Bancshares Incorporated, a Maryland corporation, and any successor to the business thereto.

2.14Director. “Director” means any individual who is not an employee of the Corporation or an Affiliate and who is serving on the Board or on the board of directors of an Affiliate, or who is serving on an advisory board of the Corporation or an Affiliate. Notwithstanding the foregoing, a Director shall not include an individual who serves on the board of directors or advisory board of an Affiliate that is exempt from federal income tax.

2.15Election Form. “Election Form” means the form or forms which may be in electronic format established from time to time by the Committee that a Participant completes, signs, and returns to the Corporation to make elections under the Plan.

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2.16LTIP Award. “LTIP Award” means an equity-based-award granted under the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan or any successor plan.

2.17LTIP Deferral Sub-Account. “LTIP Deferral Sub-Account” means the sub-account or sub-accounts maintained by the Committee with respect to LTIP Awards deferred by a Participant.

2.18Participant. “Participant” means (a) a Director (i) who has been selected by the Committee to participate in this Plan and (ii) whose Election Form has been accepted by the Corporation; or (b) a Director or former Director who has an outstanding Account balance under the Plan. For purposes of this Plan, a Director who has been elected to serve on the Board shall automatically be deemed to have been selected by the Committee under (a)(i) above to become a Participant.

2.19Plan. “Plan” means the Huntington Bancshares Incorporated Director Deferred Compensation Plan, as amended from time-to-time.

2.20Plan Year. “Plan Year” means the calendar year.

2.21Separation from Service. “Separation from Service” means the Participant's “separation from service” (as defined in Code Section 409A) with the Corporation and all Affiliates.

2.22Specified Employee. “Specified Employee” means any Participant who is determined to be a “key employee” (as defined under Code Section 416(i) without regard to paragraph (5) thereof) for the applicable period, as determined annually by the Corporation in accordance with Treas. Reg. §1.409A-1(i). In determining whether a Participant is a Specified Employee, the following provisions shall apply:

(a) The Corporation’s identification of the individuals who fall within the definition of “key employee” under Code Section 416(i) (without regard to paragraph (5) thereof) shall be based upon the 12-month period ending on each December 31^st (referred to below as the “identification date”). In applying the applicable provisions of Code Section 416(i) to identify such individuals, “compensation” shall be determined in accordance with Treas. Reg. §1.415(c)-2(a) without regard to (i) any safe harbor provided in Treas. Reg. §1.415(c)-2(d), (ii) any of the special timing rules provided in Treas. Reg. §1.415(c)-2(e), and (iii) any of the special rules provided in Treas. Reg. §1.415(c)-2(g); and

(b) Each Participant who is among the individuals identified as a “key employee” in accordance with part (a) of this Section shall be treated as a Specified Employee for purposes of this Plan if such Participant experiences a Separation from Service during the 12-month period that begins on the April 1^st following the applicable identification date and ends March 31^st of the following year.

2.23Specified Payment Date. “Specified Payment Date” means a specific date selected by a Director in his or her Election Form to receive a distribution of all or a portion of the Director’s Account under the Plan.

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2.24Transferred DSU Sub-Account. “Transferred DSU Sub-Account” means the award of deferred stock units that previously were deferred under the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan that have been credited to the Participant’s Account under this Plan.

2.25Unforeseeable Emergency. “Unforeseeable Emergency” means a severe financial hardship of the Participant resulting from (a) an illness or accident of the Participant, the Participant’s spouse, the Participant’s Beneficiary or the Participant’s dependent (as defined in Code Section 152 without regard to paragraphs (b)(1), (b)(2) and (d)(1)(b) thereof), (b) a loss of the Participant’s property due to casualty, or (c) such other similar extraordinary and unforeseeable circumstances arising as a result of events beyond the control of the Participant, all as determined by the Committee based on the relevant facts and circumstances.

ARTICLE III

ELIGIBILITY AND PARTICIPATION IN THE PLAN; DEFERRAL ELECTIONS

3.1Eligibility and Committee Selection of Participants. All Directors generally shall be eligible to participate in the Plan. Participation in the Plan, however, shall be limited to those Directors that the Committee has selected, in its sole and absolute discretion, to participate in the Plan. Notwithstanding the foregoing, those Directors who have been elected to serve on the Board are automatically deemed to have been selected by the Committee to participate in the Plan.

3.2Commencement of Participation. A selected Director may elect to participate in the Plan each Plan Year by filing with the Committee an Election Form prior to January 1 of the Plan Year in which Compensation is earned for services performed during such Plan Year, except as set forth in Section 3.3 herein. Such Election Form shall be irrevocable as of the December 31 immediately preceding the Plan Year for which the election is made and shall remain in effect for one (1) Plan Year only.

3.3Initial Year of Eligibility. A Director who first becomes eligible and selected to participate in this Plan after January 1^st of a Plan Year and who was not previously eligible to participate in an Aggregated Plan may elect to participate in the Plan by filing with the Committee an Election Form no later than thirty (30) days after the date on which the individual becomes a Director. Any deferral or payment election made in accordance with this section shall become irrevocable no later than the 30^th day after the date the Director became eligible to participate in this Plan and shall apply to Compensation earned for services performed after the date the Election Form becomes irrevocable. Notwithstanding the foregoing, this Section 3.3 shall not apply if, at the time the Director is selected to participate in this Plan, the Director also is eligible to participate in any Aggregated Plan.

3.4Deferral and Payment Elections. Except as provided in Section 3.3, a Director may make deferral and payment elections with respect to Compensation earned for services performed during the immediately succeeding Plan Year by filing an Election Form with the Committee pursuant to Section 3.2. Pursuant to his or her Election Form for a Plan Year, a Director may make separate elections with respect to cash fee amounts to be deferred into the Cash Deferral

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Sub-Account and LTIP Awards to be deferred into the LTIP Deferral Sub-Account, subject to any minimum and maximum deferral amounts specified by the Committee.

ARTICLE IV

ACCOUNTS

4.1Account. The Compensation deferred by a Participant under the Plan shall be credited to the Participant’s Account. Separate Cash Deferral Sub-Accounts, LTIP Deferral Sub-Accounts, and Transferred DSU Sub-Accounts may be maintained to reflect deferrals of different types of Compensation, and additional sub-accounts may be maintained to reflect different times and forms of distribution with respect to these deferrals. The Account shall be a bookkeeping device utilized for the sole purpose of determining the benefits payable under the Plan and shall not constitute a separate fund of assets.

4.2Timing of Credits A Participant’s deferred Compensation shall be credited to the Participant’s Account at the time it would have been payable to the Participant.

4.3Determination of Value of an Account. Prior to a distribution, each Participant’s Account shall consist of the balance determined as follows:

(a)Deferrals. The Account shall be increased by any deferred Compensation credited.

(b)Distributions. The Account shall be reduced by any benefits previously distributed from the Account to the Participant.

(c)Earnings Credits. The Account shall be increased or decreased by the aggregate hypothetical earnings, gains and losses on such Account. Such earnings, gains, expenses and losses are hypothetical and not actual, but they shall be applied to measure the value of a Participant’s Account and the amount of the Corporation’s liability to make deferred payments to or on behalf of the Participant.

4.4Investment Elections. Each Participant may elect to have earnings (or losses) credited to his or her Account from among the investment option or options that the Committee establishes for this purpose. One such investment option shall be the Corporation’s Common Stock fund. Such elections shall be made in the manner that the Committee directs. The Committee may prescribe rules that govern the timing of investment elections and the frequency in which investment elections may be changed, regulate the amount or increment a Participant may allocate to a particular investment option, require or allow an election to relate only to future deferrals, require an election to apply consistently to all sub-accounts and provide for the investment of an Account of a Participant who fails to make an investment election. If a Participant does not make any investment election, the Participant’s Account balance shall be allocated to a default investment fund selected by the Committee in its sole discretion.

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4.5Statement of Account The Committee shall provide or make available to each Participant a statement showing the balance in the Participant’s Account periodically, at such times as may be determined by the Committee, in written or electronic form.

ARTICLE V

PAYMENTS AND DISTRIBUTIONS

5.1Distributions/Events Generally. Participants will be entitled to begin to receive a distribution of their Accounts either (a) when they incur a Separation from Service for any reason or (b) before Separation from Service, upon (i) an Unforeseeable Emergency that occurs before Separation from Service, or (ii) a Specified Payment Date that has been designated in accordance with this Article V. If a Participant does not make a payment election, the payment or payments shall commence as a result of the Participant’s Separation from Service. Notwithstanding the foregoing, distributions of a Participant’s LTIP Deferral Sub-Account may be made only upon a Participant’s Separation from Service.

5.2Form of Payment.    Regardless of whether the Participant elects to receive payment on a Specified Payment Date or upon Separation from Service, the Participant, in an Election Form, may elect to receive distribution in either a lump sum or annual installments over a period specified in an Election Form. If a Participant does not make such an election, the payment shall be made in a lump sum. If a Participant elects (or is deemed to have elected) to receive payment in a lump sum, the amount of the lump sum payment will be based on the value of the Participant’s Account as of the Business Day coincident with or, if that is not administratively practicable, immediately preceding, the date payment is made. If a Participant elects to receive installments, the amount of each installment payment will be equal to the value of the Participant’s Account as of the Business Day coincident with or, if that is not administratively practicable, immediately preceding, the date an installment payment is made, divided by the number of remaining installment payments. For purposes of the Plan, the term “payment” means each separate installment and not the group of installment payments.

5.3Distributions With Respect to Separation from Service.

(a) General Payment Timing.    If a Participant is scheduled to receive payment or payments as a result of Separation from Service, payment shall commence on the last Business Day of the month after the month in which the participant incurred a Separation from Service, or such other objectively determinable time that is specified in an Election Form that governs the payment of a Participant’s Account or subaccount. If the Participant has elected to receive installment payments, each installment shall be made on each anniversary of the initial payment date, or if such date is not a Business Day, the first Business Day immediately after the applicable anniversary date. In no event may payment be made at an earlier or later date except as permitted under Code Section 409A. The value of the Participant’s Account to be distributed shall be determined in accordance with Section 4.3 of this Plan and measured on the Business Day described in Section 5.2 of this Plan for lump sum and installment payments, as applicable.

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(b) Specified Employee. Notwithstanding subsection (a), if the Participant is classified as a “Specified Employee” within the meaning of Code Section 409A and regulations promulgated thereunder at the time of the Participant’s Separation from Service (or at such other time for determining Specified Employee status as may apply under Code Section 409A), then such Participant’s Account shall not be paid, as a result of the Participant’s Separation from Service, earlier than the date that is at least six (6) months after the Participant’s Separation from Service. The value of the Participant’s Account to be distributed shall be determined in accordance with Section 4.3 of this Plan and measured on the Business Day described in Section 5.2 of this Plan for lump sum and installment payments, as applicable.

5.4Distributions on a Specified Payment Date. If a Participant has elected to receive payment upon a Specified Payment Date, commencement of such Specified Payment Date distributions shall occur on the last Business Day of the month in which the Specified Payment Date is designated. If the Participant has elected to receive installment payments, each installment shall be made on each anniversary of the initial payment date, or if such date is not a Business Day, the first Business Day immediately after the applicable anniversary date. The value of the Participant’s Account to be distributed shall be determined in accordance with Section 4.3 of this Plan and measured on the Business Day described in Section 5.2 of this Plan for lump sum and installment payments, as applicable.

5.5Modifying Elections. The Committee, in its discretion, may allow a Participant to modify the election as to the time and form of payment of amounts credited to the Participant’s Account, and earnings thereon, if all of the following requirements are satisfied:

a. If a Participant’s initial election specified payment based on a Specified Payment Date, the Participant’s modified election must be made at least 12 months before the Participant’s original Specified Payment Date and such election will not be effective until 12 months after it is made. In addition, the Participant’s modified election must specify one of the following two new Specified Payment Dates: (i) a new Specified Payment Date that is at least 5 years after the original Specified Payment Date, or (ii) a new Specified Payment Date that is at least 5 years after the original Specified Payment Date or, if later, Separation from Service.

b. If a Participant’s initial election specified payment based on the Participant’s Separation from Service, the Participant’s modified election must be made at least 12 months before the Participant’s Separation from Service and such election will not be effective until 12 months after it is made. In addition, the Participant must elect a payment date that is at least 5 years after the Participant’s Separation from Service.

5.6Transferred DSU Account. A Participant who previously elected to defer an LTIP Award of Deferred Stock Units shall receive payment of such Deferred Stock Units at such time and in such form as the Participant previously elected on his election form under the applicable LTIP Award, unless the Participant elects to modify the time and form of payment of such Deferred Stock Units in accordance with Section 5.3 of this Plan.

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5.7Automatic Cash-Out. In the event a Participant’s Account balance at the time distribution begins is two times the then current limit under Code Section 402(g) or less, that balance shall be paid to the Participant or his Beneficiary in a lump sum on the next annual installment distribution date notwithstanding any form of benefit payment elected by the Participant.

5.8Payment to Guardian or Beneficiary. The Committee may direct payment to the duly appointed guardian, conservator or other similar legal representative of a Participant or Beneficiary to whom payment is due. In the absence of such a legal representative, the Committee may, in its sole and absolute discretion, make payment to a person having the care and custody of a minor, incompetent or person incapable of handling the disposition of property upon proof satisfactory to the Committee of incompetency, status as a minor, or incapacity. Such distribution shall completely discharge the Corporation from all liability with respect to such benefit.

5.9Unforeseeable Emergency. Upon finding that a Participant has suffered an Unforeseeable Emergency, the Committee may, in its sole discretion, make distributions from the Participant’s Account and/or allow a Participant to suspend the elections made on his or her Election Form entirely. The amount of such distribution shall be limited to the amount necessary to satisfy such Unforeseeable Emergency plus amounts necessary to pay taxes reasonably anticipated as a result of the distribution, after taking into account the extent to which such hardship is or may be relieved through reimbursement or compensation by insurance or otherwise or by liquidation of the Participant’s assets (to the extent the liquidation of such assets would not itself cause severe financial hardship). Any distribution pursuant to this Section shall be payable in a lump sum. The distribution shall be paid within 30 days after the determination of an Unforeseeable Emergency.

ARTICLE VI

BENEFICIARY DESIGNATION

6.1Beneficiary. Each Participant shall have the right, at any time, to designate his or her Beneficiary(ies) (both primary as well as contingent) to receive any benefits payable under the Plan to a beneficiary upon the death of a Participant. The Beneficiary designated under this Plan may be the same as or different from the Beneficiary designation under any other plan of the Corporation in which the Participant participates.

6.2Designation and Changing of Beneficiary; Spousal Consent. A Participant shall designate his or her Beneficiary by completing and signing the Beneficiary Designation Form, and returning it to the Corporation or its designated agent. A Participant shall have the right to change a Beneficiary by completing, signing and otherwise complying with the terms of the Beneficiary Designation Form and the Corporation's rules and procedures, in effect from time to time. Upon the acceptance by the Corporation of a new Beneficiary Designation Form, all Beneficiary designations previously filed shall be canceled. The Corporation shall be entitled to rely on the last Beneficiary Designation Form filed by the Participant and accepted by the Corporation prior to his or her death. No designation or change in designation of a Beneficiary shall be effective until received and acknowledged in writing by the Corporation or its designated agent.

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6.3No Beneficiary Designation. If any Participant fails to designate a Beneficiary in the manner provided under this Plan, if the designation is void or if the Beneficiary designated by a deceased Participant dies before the Participant or before complete distribution of the Participant’s benefits, the Participant’s Beneficiary shall be the person in the first of the following classes in which there is a survivor:

(a)The Participant’s then-current spouse as of the date of the Participant’s death; or,

(b)If the Participant has no such surviving spouse, the executor or personal representative of the Participant's estate.

ARTICLE VII

ADMINISTRATION

7.1Committee; Duties. The Plan shall be administered by the Committee. The Committee shall have the authority to make, amend, interpret, and enforce all appropriate rules and regulations for the administration of the Plan and decide or resolve any and all questions, including interpretations of the Plan and any factual questions, as may arise in such administration. The Committee may adopt resolutions to clarify or resolve any ambiguous or unresolved issues that arise under the Plan and take such other actions as it deems necessary or appropriate for the proper administration of the Plan. Any individual who is serving on the Committee who is a Participant shall not vote or act on any matter relating solely to himself or herself. When making a determination or calculation, the Committee shall be allowed to relay on information furnished by a Participant, the Corporation, or an Affiliate.

7.2Agents. The Committee may, from time to time, employ agents or third party administrators and delegate to them such administrative duties as it sees fit, and may from time to time consult with counsel who may be counsel to the Corporation.

7.3Binding Effect of Decisions. The Committee has the exclusive and discretionary authority to construe and to interpret the Plan, to decide all questions of eligibility for benefits, to determine the amount and manner of payment of such benefits and to make any determinations that are contemplated by (or permissible under) the terms of this Plan, and its decisions on such matters will be final and conclusive on all parties. Any such decision or determination shall be made in the absolute and unrestricted discretion of the Committee, even if (1) such discretion is not expressly granted by the Plan provisions in question, or (2) a determination is not expressly called for by the Plan provisions in question, and even though other Plan provisions expressly grant discretion or call for a determination. As a result, benefits under this Plan will be paid only if the Committee decides in its discretion that the applicant is entitled to them. In the event of a review by a court, arbitrator or any other tribunal, any exercise of the Committee’s discretionary authority shall not be disturbed unless it is clearly shown to be arbitrary and capricious.

ARTICLE VIII

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AMENDMENT AND TERMINATION OF PLAN

8.1Amendment. The Committee may at any time amend the Plan by written instrument. Notwithstanding the preceding sentence, no amendment shall reduce the amount accrued in any Account prior to the date such notice of the amendment is given.

8.2Corporation’s Right to Terminate. The Committee may at any time freeze or terminate the Plan if, in its judgment, the continuance of the Plan would not be in the best interests of the Corporation or any Affiliate.

(a)Plan Freeze. The Committee may freeze the Plan by providing that no additional deferral elections may be made under the Plan. If such a freeze occurs, the Plan shall continue to operate and be effective with regard to deferral elections made on Election Forms entered into prior to the effective date of such Plan freeze.

(b)Termination. The Committee reserves the right to terminate the Plan with respect to all Participants. In the event of a Plan termination no new deferral elections shall be permitted for the affected Participants. However, after the Plan termination, the Accounts of such Participants shall continue to be credited with deferrals attributable to a deferral election that was in effect prior to the Plan termination to the extent deemed necessary to comply with Code Section 409A, and additional amounts shall continue to credited or debited to such Participants’ Account Balances pursuant to Article IV. The investment options available to Participants following the termination of the Plan shall be comparable in number and type to those investment options available to Participants in the Plan Year preceding the Plan Year in which the Plan termination is effective. In addition,following a Plan termination, Participant Accounts shall remain in the Plan and shall not be distributed until such amounts become eligible for distribution in accordance with the other applicable provisions of the Plan.Notwithstanding the preceding sentence, to the extent permitted by Treas. Reg. §1.409A-3(j)(4)(ix), the Corporation may provide that upon termination of the Plan, all Accounts of the Participants shall be distributed, subject to and in accordance with any rules established by the Corporation deemed necessary to comply with the applicable requirements and limitations of Treas. Reg. §1.409A-3(j)(4)(ix).

ARTICLE IX

CLAIMS PROCEDURES

9.1Presentation of Claim. Any Participant or Beneficiary of a deceased Participant (such Participant or Beneficiary being referred to below as a “Claimant”) may deliver to the Committee a written claim for a determination with respect to the amounts distributable to such Claimant from the Plan. If such a claim relates to the contents of a notice received by the Claimant, the claim must be made within 60 days after such notice was received by the Claimant. All other claims must be made within 180 days of the date on which the event that caused the claim to arise occurred. The claim must state with particularity the determination desired by the Claimant.

9.2Notification of Decision. The Committee shall consider a Claimant's claim within a reasonable time, but no later than 90 days after receiving the claim. If the Committee determines

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that special circumstances require an extension of time for processing the claim, written notice of the extension shall be furnished to the Claimant prior to the termination of the initial 90 day period. In no event shall such extension exceed a period of 90 days from the end of the initial period. The extension notice shall indicate the special circumstances requiring an extension of time and the date by which the Corporation expects to render the benefit determination. The Committee shall notify the Claimant in writing:

(a)that the Claimant's requested determination has been made, and that the claim has been allowed in full; or

(b)that the Committee has reached a conclusion contrary, in whole or in part, to the Claimant's requested determination, and such notice must set forth in a manner calculated to be understood by the Claimant:

(i) the specific reason(s) for the denial of the claim, or any part of it;

(ii) specific reference(s) to pertinent provisions of the Plan upon which such denial was based;

(iii) a description of any additional material or information necessary for the Claimant to perfect the claim, and an explanation of why such material or information is necessary; and

(iv) an explanation of the claim review procedure set forth in Section 9.3 below.

9.3Review of a Denied Claim. On or before 60 days after receiving a notice from the Committee that a claim has been denied, in whole or in part, a Claimant (or the Claimant's duly authorized representative) may file with the Board a written request for a review of the denial of the claim. The Claimant (or the Claimant's duly authorized representative):

(a)may, upon request and free of charge, have reasonable access to, and copies of, all documents, records and other information relevant to the claim for benefits;

(b)may submit written comments or other documents; and/or

(a)may request a hearing, which the Board, in its sole discretion, may grant.

9.4Decision on Review. The Board shall render its decision on review promptly, and no later than 60 days after the Board receives the Claimant’s written request for a review of the denial of the claim. If the Board determines that special circumstances require an extension of time for processing the claim, written notice of the extension shall be furnished to the Claimant prior to the termination of the initial 60 day period. In no event shall such extension exceed a period of 60 days from the end of the initial period. The extension notice shall indicate the special circumstances requiring an extension of time and the date by which the Board expects to render the benefit determination. In rendering its decision, the Board shall take into account all comments, documents, records and other information submitted by the Claimant relating to the claim, without regard to whether such information was submitted or considered in the initial benefit determination. The

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decision must be written in a manner calculated to be understood by the Claimant, and it must contain:

(a)specific reasons for the decision;

(b)specific reference(s) to the pertinent Plan provisions upon which the decision was based;

(c)a statement that the Claimant is entitled to receive, upon request and free of charge, reasonable access to and copies of, all documents, records and other information relevant to the Claimant’s claim for benefits; and

(d)a statement of the Claimant’s right to bring a civil action.

The Board has the right, but not the obligation, to confer with the Committee concerning any appeal.

9.5Legal Action. A Claimant's compliance with the foregoing provisions of this Article IX is a mandatory prerequisite to a Claimant's right to commence any legal action with respect to any claim for benefits under this Plan.

ARTICLE X

TRUST

10.1Establishment of the Trust. In order to provide assets from which to fulfill its obligations to the Participants and their Beneficiaries under the Plan, the Corporation has established or may establish a rabbi trust in accordance with Revenue Procedure 92‑64, to which the Corporation and any Affiliate may, in its discretion, contribute cash or other property, including securities issued by the Corporation, to provide for the benefit payments under the Plan (the “Trust”).

10.2Interrelationship of the Plan and the Trust. The provisions of the Plan and the Participant’s Election Form shall govern the rights of a Participant to receive distributions pursuant to the Plan. If a Participant’s Election Form could be construed to be in contradiction of or different from the terms of the Plan, the Plan controls. The provisions of the Trust shall govern the rights of the Corporation, Affiliates, Participants and the creditors of the Corporation and Affiliates to the assets transferred to the Trust. The Corporation and each Affiliate shall at all times remain liable to carry out its obligations under the Plan.

10.3Distributions From the Trust. The Corporation and each Affiliate's obligations under the Plan may be satisfied with Trust assets distributed pursuant to the terms of the Trust, and any such distribution shall reduce the Corporation and any Affiliate's obligations under this Plan.

ARTICLE XI

MISCELLANEOUS

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11.1Unfunded Plan. No promise hereunder shall be secured by any specific assets of the Corporation or any Affiliate, nor shall any assets of the Corporation or its Affiliates be designated as attributable or allocated to the satisfaction of such promises. Participants shall have no rights under the Plan other than as unsecured general creditors of the Corporation and its Affiliates.

11.2Corporation’s Liability. The Corporation’s liability for the payment of benefits shall be defined only by the Plan. The Corporation shall have no obligation to a Participant under the Plan except as expressly provided in the Plan.

11.3Nonassignability. Neither a Participant nor any other person shall have any right to commute, sell, assign, transfer, pledge, anticipate, mortgage or otherwise encumber, transfer, hypothecate, alienate or convey in advance of actual receipt, the amounts, if any, payable hereunder, or any part thereof, which are, and all rights to which are expressly declared to be, unassignable and non-transferable. No part of the amounts payable shall, prior to actual payment, be subject to seizure, attachment, garnishment or sequestration for the payment of any debts, judgments, alimony or separate maintenance owed by a Participant or any other person, be transferable by operation of law in the event of a Participant's or any other person's bankruptcy or insolvency or be transferable to a spouse as a result of a property settlement or otherwise, except as provided in this Plan regarding domestic relations orders.

11.4Invalidity. If any term or provision contained herein is to any extent invalid or unenforceable, such term or provision will be reformed so that it is valid, and such invalidity or unenforceability will not affect any other provision or part hereof.

11.5Governing Law. This Plan shall be governed by the laws of the State of Ohio, without regard to the conflict of law provisions thereof.

11.6Successors and Heirs. The Plan and any properly executed elections hereunder shall be binding upon the Corporation, its Affiliates and Participants, and upon any assignee or successor in interest to the Corporation or any Affiliate and upon the heirs, legal representatives and Beneficiaries of any Participant.

11.7Status as Shareholders. Credits to Participant’s LTIP Deferral Sub-Account in common stock of the Corporation are not, and do not constitute, actual shares of common stock, and no right as a holder of shares of common stock shall devolve upon a Participant unless and until such shares are issued to the Participant or Beneficiary.

11.8Rights. Participation in this Plan shall not give any Director the right to continue to serve as a member of the Board or the board of directors of any Affiliate or any rights or interests other than as herein provided.

11.9Use of Terms. The masculine includes the feminine and the plural includes the singular, unless the context clearly indicates otherwise.

11.10Statement of Accounts. Each Participant in the Plan during the immediately preceding Plan Year shall receive a statement of his Accounts under the Plan as of December 31 of

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such preceding Plan Year. Such statement shall be in a form and contain such information as is deemed appropriate by the Committee.

11.11Compliance with Laws. This Plan and the payment and deferral of Compensation under this Plan are subject to compliance with all applicable federal and state laws, rules and regulations (including but not limited to state and federal reporting, registration, insider trading and other securities laws) and to such approvals by any listing agency or any regulatory or governmental authority as may, in the opinion of counsel for the Corporation, be necessary or advisable in connection therewith. Any securities delivered under this Plan shall be subject to such restrictions, and the person acquiring the securities shall, if requested by the Corporation, provide such assurances and representations to the Corporation as the Corporation may deem necessary or desirable to assure compliance with all applicable legal requirements.

11.12Headings Not Part of Plan.     Headings and subheadings in the Plan are inserted for reference only and are not to be considered in the construction of the Plan.

11.13Extension of Plan to Affiliates. By action of its Board, the Corporation may terminate an Affiliate's eligibility to participate in the Plan; provided, however, that such termination shall not be effective until the last day of the calendar year in which such action was taken. Upon termination of an Affiliate's eligibility, the Affiliate shall remain obligated to pay such deferred compensation in accordance with the provisions of the Plan in effect immediately prior to the date of such termination.

11.14Domestic Relations Orders. If necessary to comply with a domestic relations order, as defined in Code Section 414(p)(1)(B), pursuant to which a court has determined that a spouse or former spouse of a Participant has an interest in the Participant’s benefits under the Plan, the Committee shall have the right to immediately distribute the spouse’s or former spouse’s interest in the Participant’s benefits under the Plan to such spouse or former spouse.

11.15Permitted Delays for Potential Federal Securities Laws or Other Violations. Notwithstanding any provision of the Plan to the contrary, any payment to a Participant under the Plan shall be delayed where the Corporation reasonably anticipates that making such payment will violate federal securities laws or other applicable law; provided that any payment that is delayed under this section shall be made at the earliest date at which the Corporation reasonably anticipates that the making of the payment will not cause a violation of Federal securities laws or other applicable law.

ARTICLE XII

CODE SECTION 409A

12.1Compliance with Code Section 409A. Notwithstanding anything herein to the contrary, all provisions in this document shall be interpreted, to the extent possible, to be in compliance with Code Section 409A. However, in the event any provision of this Plan is determined to not be in compliance with Code Section 409A and any guidance promulgated thereunder, such provision shall be null and void to the extent of such noncompliance. Nothing in this Plan shall be

14

construed as an entitlement to or guarantee of any particular tax treatment for any Participant, and none of the Corporation, any of its Affiliates, the Board or the Committee shall have any liability with respect to any failure to comply with the requirements of Code Section 409A.

12.2Payments Upon Income Inclusion Under Code Section 409A. Notwithstanding anything to the contrary contained herein, the Corporation may accelerate the time or schedule of a distribution to a Participant at any time the Plan fails to meet the requirements of Code Section 409A. Such distribution may not exceed the amount required to be included in income as a result of the failure to comply with the requirements of Code Section 409A.

12.3Correction of Code Section 409A Compliance Errors. If the Corporation unintentionally fails to operate this Plan or follow the terms of this Plan in such a way that is not compliant with Code Section 409A, the Corporation may take any steps necessary to correct the error, as provided in Internal Revenue Service guidance for correcting operational and document errors, or other applicable guidance.

This Plan shall become effective on the January 1, 2017 effective date by reason of the signature of the authorized officer of the Corporation below.

HUNTINGTON BANCSHARES INCORPORATED

By:    /s/ Richard A. Cheap            

Its:    General Counsel & Secretary        

Dated:    December 23, 2016            

15

EX-10.2

Exhibit 10.2

HUNTINGTON BANCSHARES INCORPORATED

FIRST AMENDMENT TO THE

2015 LONG-TERM INCENTIVE PLAN

Background

A. Huntington Bancshares Incorporated (the “Corporation”) currently maintains the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan (the “Plan”).

B. The Corporation desires to amend the Plan to eliminate the mandatory minimum 6-month vesting period requirement for awards of stock options, stock appreciation rights, restricted stock, and restricted stock units granted under the Plan.

C. Article 18 of the Plan gives the Corporation the authority to amend the Plan from time to time.

Amendment

The following amendments are made to the Plan, effective for Awards granted on or after January 1, 2017.

1. Section 2.32 of the Plan is deleted in its entirety and replaced with the following:

2.32    “PERIOD OF RESTRICTION” means the period during which the transfer of Shares of Restricted Stock or Restricted Stock Units is limited in some way, which may be the achievement of performance objectives or the passage of time, or both, such that the Shares or RSUs are subject to a substantial risk of forfeiture. A restriction based on the passage of time shall not fully lapse until the date that is three (3) years after the date of grant, except as otherwise may be provided in the Award Agreement for (a) new hires, (b) Retirement, (c) involuntary terminations of employment without Cause, (d) achievement of specific performance objectives, (e) death, (f) Disability, or (g) other circumstances that the Committee determines is in the best interests of the Corporation.

2.    Section 6.2 of the Plan is deleted in its entirety and replaced with the following:

6.2    AWARD AGREEMENT. Each Option grant shall be evidenced by an Award Agreement that shall specify the Option Price, the duration of the Option, the number of Shares to which the Option pertains, the date of grant, vesting restrictions, if any,and such other provisions as the Committee shall determine. The Award Agreement also shall specify whether the Option is intended to be an ISO or an NQSO. Notwithstanding the foregoing, an NQSO shall become fully vested no earlier than the date that is three (3) years after the date of grant of such NQSO, except as otherwise may be provided in the Award Agreement for (a) new hires, (b) Retirement, (c) involuntary terminations of employment without Cause, (d) achievement of specific performance

objectives, (e) death, (f) Disability, or (g) other circumstances that the Committee determines is in the best interests of the Corporation.

3. Section 7.3 of the Plan is deleted in its entirety and replaced with the following:

7.3    OTHER RESTRICTIONS. The Committee shall impose such other conditions and/or restrictions on any Shares of Restricted Stock granted pursuant to the Plan as it may deem advisable including, without limitation, a requirement that Participants pay a stipulated purchase price for each Share of Restricted Stock, restrictions based upon the achievement of specific performance objectives (Corporation-wide, business unit, and/or individual), Qualifying Performance Criteria, a Performance Cycle, time-based restrictions, and/or restrictions under applicable federal or state securities laws. Notwithstanding the foregoing, the Period of Restriction under any Restricted Stock Agreement generally may not fully lapse until the date that is three (3) years after the date of grant of such Restricted Stock, except as otherwise may be provided in a Restricted Stock Agreement for (a) new hires, (b) Retirement, (c) involuntary terminations of employment without Cause, (d) achievement of specific performance objectives, (e) death, (f) Disability, or (g) other circumstances that the Committee determines is in the best interests of the Corporation.

4. Section 8.3 of the Plan is deleted in its entirety and replaced with the following:

8.3    OTHER RESTRICTIONS. The Committee shall impose such other conditions and/or restrictions on any RSUs granted pursuant to the Plan as it may deem advisable including, without limitation, a requirement that Participants pay a stipulated purchase price for each RSU, restrictions based upon the achievement of specific performance objectives (Corporation-wide, business unit, and/or individual), Qualifying Performance Criteria, a Performance Cycle, time-based restrictions, and/or restrictions under applicable federal or state securities laws. Notwithstanding the foregoing, the Period of Restriction under any Restricted Stock Unit Award Agreement generally may not fully lapse until the date that is three (3) years after the date of grant of such RSU, except as otherwise may be provided in a Restricted Stock Unit Award Agreement for (a) new hires, (b) Retirement, (c) involuntary terminations of employment without Cause, (d) achievement of specific performance objectives, (e) death, (f) Disability, or (g) other circumstances that the Committee determines is in the best interests of the Corporation.

5. Section 9.2 of the Plan is deleted in its entirety and replaced with the following:

9.2    AWARD AGREEMENT. Each SAR grant shall be evidenced by an Award Agreement that shall specify the SAR exercise price, the duration of the SAR, the number of Shares to which the SAR pertains, whether the SAR is granted in tandem with the grant of an Option or is freestanding, the form of payment of the SAR upon exercise, and such other provisions as the Committee shall determine. SARs granted under this Article 9 shall be exercisable at such times and be subject to such restrictions and conditions as the Committee shall in each instance approve and which shall be set forth in the applicable Award Agreement, which need not be the same for each grant or for each Participant. Notwithstanding the

foregoing, a SAR shall not fully vest until the date that is three (3) years after the date of grant of such SAR, except as otherwise may be provided in the Award Agreement for (a) new hires, (b) Retirement, (c) involuntary terminations of employment without Cause, (d) achievement of specific performance objectives, (e) death, (f) Disability, or (g) other circumstances that the Committee determines is in the best interests of the Corporation.

6. The remainder of the Plan shall remain unchanged.

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Stephen D. Steinour, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Huntington Bancshares Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	April 28, 2017
		/s/	Stephen D. Steinour
			Stephen D. Steinour
			Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Howell D. McCullough III, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Huntington Bancshares Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), for the registrant and have:

5. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

a) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

b) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

c) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

6. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	April 28, 2017
		/s/	Howell D. McCullough III
			Howell D. McCullough III
			Chief Financial Officer

EX-32.1

Exhibit 32.1

SECTION 1350 CERTIFICATION

In connection with the Quarterly Report of Huntington Bancshares Incorporated (the “Company”) on Form 10-Q for the three months ended March 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen D. Steinour, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/	Stephen D. Steinour
	Stephen D. Steinour
	Chief Executive Officer
	April 28, 2017

EX-32.2

Exhibit 32.2

SECTION 1350 CERTIFICATION

In connection with the Quarterly Report of Huntington Bancshares Incorporated (the “Company”) on Form 10-Q for the three months ended March 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Howell D. McCullough III, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/	Howell D. McCullough III
	Howell D. McCullough III
	Chief Financial Officer
	April 28, 2017

XML

Document and Entity Information	3 Months Ended
	Mar. 31, 2017 shares
Document and Entity Information [Abstract]
Entity Registrant Name	HUNTINGTON BANCSHARES INC/MD
Entity Central Index Key	0000049196
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)	1,087,119,978

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks		$ 1,308,813	$ 1,384,770
Interest-bearing deposits in banks		63,055	58,267
Trading account securities		97,785	133,295
Loans held for sale (includes $423,324 and $438,224 respectively, measured at fair value)(1)	[1]	518,238	512,951
Available-for-sale and other securities		16,173,605	15,562,837
Held-to-maturity securities		7,533,517	7,806,939
Loans and leases (includes $98,342 and $82,319 respectively, measured at fair value)(1)	[1]	67,098,269	66,961,996
Allowance for loan and lease losses		(672,580)	(638,413)
Net loans and leases		66,425,689	66,323,583
Bank owned life insurance		2,445,545	2,432,086
Premises and equipment		852,582	815,508
Goodwill		1,992,849	1,992,849
Other intangible assets		388,103	402,458
Servicing rights		227,678	225,578
Accrued income and other assets		2,018,047	2,062,976
Total assets		100,045,506	99,714,097
Liabilities
Deposits		77,422,510	75,607,717
Short-term borrowings		1,263,430	3,692,654
Long-term debt		9,279,140	8,309,159
Accrued expenses and other liabilities		1,643,279	1,796,421
Total liabilities		89,608,359	89,405,951
Shareholders’ equity
Preferred Stock		1,071,227	1,071,227
Common stock		10,900	10,886
Capital surplus		9,898,889	9,881,277
Less treasury shares, at cost		(26,765)	(27,384)
Accumulated other comprehensive loss		(390,860)	(401,016)
Retained (deficit) earnings		(126,244)	(226,844)
Total shareholders’ equity		10,437,147	10,308,146
Total liabilities and shareholders’ equity		$ 100,045,506	$ 99,714,097
Common shares authorized (par value of $0.01) (in shares)		1,500,000,000	1,500,000,000
Common shares issued (in shares)		1,089,986,453	1,088,641,251
Common shares outstanding (in shares)		1,087,119,978	1,085,688,538
Treasury shares outstanding (in shares)		2,866,475	2,952,713
Preferred stock, authorized shares (in shares)		6,617,808	6,617,808
Preferred shares issued (in shares)		2,705,571	2,702,571
Preferred shares outstanding (in shares)		1,098,006	1,098,006

[1] Amounts represent loans for which Huntington has elected the fair value option.

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Loans held for sale, fair value	$ 423,324	$ 438,224
Loans and leases, fair value	$ 98,342	$ 82,319
Shareholders’ equity
Common stock, par value	$ 0.01	$ 0.01

XML

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest and fee income:
Loans and leases	$ 675,934	$ 463,422
Available-for-sale and other securities
Taxable	76,109	39,614
Tax-exempt	18,862	13,019
Held-to-maturity securities—taxable	45,195	36,789
Other	4,260	4,407
Total interest income	820,360	557,251
Interest expense:
Deposits	34,790	23,018
Short-term borrowings	5,866	898
Federal Home Loan Bank advances	66	69
Subordinated notes and other long-term debt	49,663	30,200
Total interest expense	90,385	54,185
Net interest income	729,975	503,066
Provision for credit losses	67,638	27,582
Net interest income after provision for credit losses	662,337	475,484
Service charges on deposit accounts	83,420	70,262
Cards and payment processing income	47,169	36,447
Mortgage banking income	31,692	18,543
Trust and investment management services	33,869	22,838
Insurance income	15,264	16,225
Brokerage income	15,758	15,502
Capital markets fees	14,200	13,010
Bank owned life insurance income	17,542	13,513
Gain on sale of loans	12,822	5,395
Net gains on sales of securities	16	0
Other noninterest income	40,735	30,132
Total noninterest income	312,463	241,867
Personnel costs	382,000	285,397
Outside data processing and other services	87,202	61,878
Equipment	46,700	32,576
Net occupancy	67,700	31,476
Professional services	18,295	13,538
Marketing	13,923	12,268
Deposit and other insurance expense	20,099	11,208
Amortization of intangibles	14,355	3,712
Other noninterest expense	57,148	39,027
Total noninterest expense	707,422	491,080
Income before income taxes	267,378	226,271
Provision for income taxes	59,284	54,957
Net income	208,094	171,314
Dividends on preferred shares	18,878	7,998
Net income applicable to common shares	$ 189,216	$ 163,316
Average common shares—basic (in shares)	1,086,374	795,755
Average common shares—diluted (in shares)	1,108,617	808,349
Per common share:
Net income—basic (in usd per share)	$ 0.17	$ 0.21
Net income—diluted (in usd per share)	0.17	0.20
Cash dividends declared (in usd per share)	$ 0.08	$ 0.07
OTTI losses for the periods presented:
Total OTTI losses	$ (26)	$ (3,733)
Noncredit-related portion of loss recognized in OCI	2	3,733
Impairment losses recognized in earnings on available-for-sale securities	$ (24)	$ 0

XML

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 208,094	$ 171,314
Unrealized gains (losses) on available-for-sale and other securities:
Non-credit-related impairment recoveries (losses) on debt securities not expected to be sold	524	(2,349)
Unrealized net gains (losses) on available-for-sale and other securities arising during the period, net of reclassification for net realized gains and losses	(9,998)	(51,551)
Total unrealized gains (losses) on available-for-sale and other securities	10,522	49,202
Unrealized gains (losses) on cash flow hedging derivatives, net of reclassifications to income	(826)	8,829
Change in accumulated unrealized losses for pension and other post-retirement obligations	460	841
Other comprehensive income (loss), net of tax	10,156	58,872
Comprehensive income	$ 218,250	$ 230,186

XML

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital Surplus	Treasury Stock	Accumulated Other Comprehensive Loss	Retained Earnings (Deficit)	Preferred Stock	Series A Preferred Stock	Series A Preferred Stock Retained Earnings (Deficit)	Series B Preferred Stock	Series B Preferred Stock Retained Earnings (Deficit)	Series C Preferred Stock	Series C Preferred Stock Retained Earnings (Deficit)	Series D Preferred Stock	Series D Preferred Stock Retained Earnings (Deficit)
Balance, beginning of period (in shares) at Dec. 31, 2015		796,970		(2,041)
Balance, beginning of period at Dec. 31, 2015	$ 6,594,606	$ 7,970	$ 7,038,502	$ (17,932)	$ (226,158)	$ (594,067)	$ 386,291
Comprehensive Income:
Net income	171,314					171,314
Other comprehensive income (loss)	58,872				58,872
Cash dividends declared:
Common stock, dividend	(55,774)					(55,774)
Preferred stock, dividend								$ (7,703)	$ (7,703)	$ (295)	$ (295)
Recognition of the fair value of share-based compensation	11,268		11,268
Other share-based compensation activity (in shares)		1,811
Other share-based compensation activity	(465)	$ 18	683			(1,166)
Other (in shares)		0		(51)
Other	(501)	$ 0	10	$ (485)		(26)
Balance, end of period (in shares) at Mar. 31, 2016		798,781		(2,092)
Balance, end of period at Mar. 31, 2016	7,157,670	$ 7,988	7,050,463	$ (18,417)	(167,286)	(487,717)	772,639
Cash dividends declared:
Stock Issued During Period, Value, New Issues	386,348													$ 386,348
Balance, beginning of period (in shares) at Dec. 31, 2016		1,088,641		(2,953)
Balance, beginning of period at Dec. 31, 2016	10,308,146	$ 10,886	9,881,277	$ (27,384)	(401,016)	(226,844)	1,071,227
Comprehensive Income:
Net income	208,094					208,094
Other comprehensive income (loss)	10,156				10,156
Cash dividends declared:
Common stock, dividend	(87,069)					(87,069)
Preferred stock, dividend								$ (7,703)	$ (7,703)	$ (330)	$ (330)	$ (1,469)	$ (1,469)	$ (9,375)	$ (9,375)
Recognition of the fair value of share-based compensation	(1,885)		(1,885)
Other share-based compensation activity (in shares)		1,338
Other share-based compensation activity	17,776	$ 13	19,089			(1,326)
Other (in shares)		(7)		(87)
Other	806	$ 1	408	$ 619		(222)
Balance, end of period (in shares) at Mar. 31, 2017		1,089,986		(2,866)
Balance, end of period at Mar. 31, 2017	$ 10,437,147	$ 10,900	$ 9,898,889	$ (26,765)	$ (390,860)	$ (126,244)	$ 1,071,227

XML

Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash dividends declared:
Common stock, Cash dividend per share (in usd per share)	$ 0.08	$ 0.07
Series A Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	21.25	21.25
Series B Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	9.31	8.31
Series C Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	14.69	0
Series D Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	$ 15.63	$ 0

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities
Net income	$ 208,094	$ 171,314
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	67,638	27,582
Depreciation and amortization	211,198	105,103
Share-based compensation expense	(1,885)	11,268
Net change in:
Trading account securities	35,510	(8,927)
Loans held for sale	23,544	(39,502)
Accrued income and other assets	54,010	(41,066)
Deferred income taxes	(20,271)	(4,366)
Accrued expense and other liabilities	(188,072)	(25,580)
Other, net	5,985	(4,036)
Net cash provided by (used for) operating activities	395,751	191,790
Investing activities
Change in interest bearing deposits in banks	16,876	(14,830)
Proceeds from:
Maturities and calls of available-for-sale and other securities	116,261	217,015
Maturities of held-to-maturity securities	279,077	210,606
Sales of available-for-sale and other securities	165,364	0
Purchases of available-for-sale and other securities	(887,880)	(691,607)
Purchases of held-to-maturity securities	(8,616)	0
Net proceeds from sales of portfolio loans	118,626	74,831
Net loan and lease activity, excluding sales and purchases	(437,084)	(714,140)
Purchases of premises and equipment	(55,485)	(12,157)
Proceeds from sales of other real estate	5,860	6,950
Purchases of loans and leases	(43,972)	(667,031)
Other, net	(6,094)	920
Net cash provided by (used for) investing activities	(737,067)	(1,589,443)
Financing activities
Increase (decrease) in deposits	1,814,793	363,177
Increase (decrease) in short-term borrowings	(2,433,055)	(147,339)
Net proceeds from issuance of long-term debt	1,029,231	1,024,068
Maturity/redemption of long-term debt	(47,434)	(195,475)
Dividends paid on preferred stock	(18,865)	(7,998)
Dividends paid on common stock	(87,015)	(56,195)
Proceeds from stock options exercised	4,822	1,126
Proceeds from Issuance of Preferred Stock and Preference Stock	0	386,348
Other, net	2,882	(967)
Net cash provided by (used for) financing activities	265,359	1,366,745
Increase (decrease) in cash and cash equivalents	(75,957)	(30,908)
Cash and cash equivalents at beginning of period	1,384,770	847,156
Cash and cash equivalents at end of period	1,308,813	816,248
Supplemental disclosures:
Interest paid	86,477
Income taxes paid (refunded)	1,059
Non-cash activities
Loans transferred to held-for-sale from portfolio	158,735	145,210
Loans transferred to portfolio from held-for-sale	168	9,259
Transfer of loans to OREO	$ 10,271	$ 6,468

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BASIS OF PRESENTATION

3 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

The accompanying Unaudited Condensed Consolidated Financial Statements of Huntington reflect all adjustments consisting of normal recurring accruals which are, in the opinion of Management, necessary for a fair statement of the consolidated financial position, the results of operations, and cash flows for the periods presented. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. These Unaudited Condensed Consolidated Financial Statements have been prepared according to the rules and regulations of the SEC and, therefore, certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted. The Notes to Consolidated Financial Statements appearing in Huntington’s 2016 Form 10-K, which include descriptions of significant accounting policies, as updated by the information contained in this report, should be read in conjunction with these interim financial statements.

For statement of cash flows purposes, cash and cash equivalents are defined as the sum of “Cash and due from banks” which includes amounts on deposit with the Federal Reserve and “Federal funds sold and securities purchased under resale agreements.”

In conjunction with applicable accounting standards, all material subsequent events have been either recognized in the Unaudited Condensed Consolidated Financial Statements or disclosed in the Notes to Unaudited Condensed Consolidated Financial Statements.

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ACCOUNTING STANDARDS UPDATE

3 Months Ended

Mar. 31, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

ACCOUNTING STANDARDS UPDATE

ACCOUNTING STANDARDS UPDATE

ASU 2014-09—Revenue from Contracts with Customers (Topic 606): The amendments in ASU 2014-09 supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The general principle of the amendments require an entity to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance sets forth a five step approach for revenue recognition. The amendments are effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Management intends to adopt the new guidance on January 1, 2018 using the modified retrospective approach and is well into its outlined implementation plan. In this regard, management has completed a preliminary analysis that includes (a) identification of all revenue streams included in the financial statements; (b) determination of scope exclusions to identify ‘in-scope’ revenue streams; (c) determination of size, timing, and amount of revenue recognition for in-scope items; (d) determination of sample size of contracts for further analysis; and (e) completion of limited analysis on selected contracts to evaluate the potential impact of the new guidance. The key revenue streams identified include service charges, credit card and payment processing fees, trust services fees, insurance income, brokerage services, and mortgage banking income. The new guidance is not expected to have a significant impact on Huntington’s Unaudited Consolidated Financial Statements.

ASU 2016-01 - Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this Update make targeted improvements to GAAP including, but not limited to, requiring an entity to measure its equity investments with changes in the fair value recognized in the income statement; requiring an entity to present separately in OCI the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments (i.e., FVO liability); requiring public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; assessing deferred tax assets related to a net unrealized loss on AFS securities in combination with the entity’s other deferred tax assets; and eliminating some of the disclosures required by the existing GAAP while requiring entities to present and disclose some additional information. The new guidance is effective for the fiscal period beginning after December 15, 2017, including interim periods within those fiscal years. An entity should apply the amendments as a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-02 - Leases. This Update sets forth a new lease accounting model for lessors and lessees. For lessees, virtually all leases will be required to be recognized on the balance sheet by recording a right-of-use asset and lease liability. Subsequent accounting for leases varies depending on whether the lease is an operating lease or a finance lease. The accounting applied by a lessor is largely unchanged from that applied under the existing guidance. The ASU requires additional qualitative and quantitative disclosures with the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Update is effective for the fiscal period beginning after December 15, 2018, with early application permitted. Management is currently assessing the impact of the new guidance on Huntington's Unaudited Consolidated Financial Statements. Huntington expects to recognize a right-of-use asset and a lease liability for its operating lease commitments.

ASU 2016-05 - Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. This Update provides accounting clarification for changes in the counterparty to a derivative instrument that has been designated as a qualified hedging instrument. Specifically, a change in the derivative counterparty does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-06 - Contingent Put and Call Options in Debt Instruments. This Update clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt instruments. An entity performing the assessment set forth in this Update will be required to assess embedded call (put) options solely in accordance with the four-step decision sequence. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-07 - Simplifying the Transition to the Equity Method of Accounting. This Update eliminates the requirement for the retrospective use of the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence of an investor. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for the equity method accounting. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-13 - Financial Instruments - Credit Losses. The amendments in this Update eliminate the probable recognition threshold for credit losses on financial assets measured at amortized cost. The Update requires those financial assets to be presented at the net amount expected to be collected (i.e., net of expected credit losses). The measurement of expected credit losses should be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The Update is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018. The amendments should be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. Management currently intends to adopt the guidance on January 1, 2020 and is assessing the impact of this Update on Huntington's Unaudited Consolidated Financial Statements. Management has formed a working group comprised of teams from different disciplines including credit and finance. The working group is currently evaluating the requirements of the new standard and the impact it will have on our processes. The early stages of this evaluation include a review of existing credit models to identify areas where existing credit models used to comply with other regulatory requirements may be leveraged and areas where new impairment models may be required.

ASU 2016-15 - Classification of Certain Cash Receipts and Cash Payments. The amendments in this Update add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows. Current guidance lacks consistent principles for evaluating the classification of cash payments and receipts in the statement of cash flows. This has led to diversity in practice and, in certain circumstances, financial statement restatements. Therefore, the FASB issued the ASU with the intent of reducing diversity in practice with respect to several types of cash flows. The amendments in this Update are effective using a retrospective transition approach for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-17 - Consolidation - Interests Held Through Related Parties that are Under Common Control. The Update amends the guidance included in ASU 2015-02, Consolidation: Amendments to Consolidation Analysis adopted by Huntington in 2016. The Update makes a narrow amendment and requires that a single decision maker should consider indirect economic interests in the entity held through related parties that are under common control on a proportionate basis when determining whether it is the primary beneficiary of that VIE. Prior to this amendment, indirect interests held through related parties that are under common control were to be considered equivalent of single decision maker’s direct interests in their entirety. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-04 - Simplifying the Test for Goodwill Impairment. The Update simplifies the goodwill impairment test. Under the new guidance, Step 2 of the goodwill impairment process that requires an entity to determine the implied fair value of its goodwill by assigning fair value to all its assets and liabilities, is eliminated. Instead, the entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The new guidance is effective for annual and interim goodwill tests performed in fiscal years beginning after December 15, 2019. Early adoption is permitted. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-07 - Improving the Presentation of Net Periodic Pension Cost and Periodic Postretirement Benefit Cost. The amendments in this Update require that an employer report the service cost component of the pension cost and postretirement benefit cost in the same line items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of the net benefit cost should be presented in the income statement separately from the service cost component. The amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-08 - Premium Amortization on Purchased Callable Debt Securities. The Update amends the guidance related to amortization for certain callable debt securities held at a premium. The new guidance requires the premium to be amortized to the earliest call date. The guidance does not require an accounting change for securities purchased at discount. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

3 Months Ended

Mar. 31, 2017

Receivables [Abstract]

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

Loans and leases for which Huntington has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are classified in the Unaudited Condensed Consolidated Balance Sheets as loans and leases. Except for loans which are accounted for at fair value, loans are carried at the principal amount outstanding, net of unamortized premiums and discounts and deferred loan fees and costs and purchase accounting adjustments, which resulted in a net premium of $179 million and $120 million at March 31, 2017 and December 31, 2016, respectively.

Loan and Lease Portfolio Composition

The following table provides a detailed listing of Huntington’s loan and lease portfolio at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Loans and leases:
Commercial and industrial	$	28,175,924		$	28,058,712
Commercial real estate	7,093,118			7,300,901
Automobile	11,155,094			10,968,782
Home equity	9,974,294			10,105,774
Residential mortgage	7,829,137			7,724,961
RV and marine finance	1,934,983			1,846,447
Other consumer	935,719			956,419
Loans and leases	67,098,269			66,961,996
Allowance for loan and lease losses	(672,580		)	(638,413		)
Net loans and leases	$	66,425,689		$	66,323,583

Purchased Credit-Impaired Loans

The following table presents a rollforward of the accretable yield for purchased credit impaired loans for the three-month period ended March 31, 2017: and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017
FirstMerit
Balance, beginning of period	$	36,669
Accretion	(4,702		)
Reclassification (to) from nonaccretable difference	5,405
Balance, end of period	$	37,372

The following table reflects the ending and unpaid balances of the purchase credit impaired loans at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance		Ending Balance		Unpaid Balance
FirstMerit
Commercial and industrial	$	67,514	$	97,946	$	68,338	$	100,031
Commercial real estate	22,597		38,045		34,042		56,320
Total	$	90,111	$	135,991	$	102,380	$	156,351

NALs and Past Due Loans

Loans are considered past due when the contractual amounts due with respect to principal and interest are not received within 30 days of the contractual due date.

The following table presents NALs by loan class at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Commercial and industrial	$	232,171	$	234,184
Commercial real estate	13,889		20,508
Automobile	4,881		5,766
Home equity	69,575		71,798
Residential mortgage	80,686		90,502
RV and marine finance	106		245
Other consumer	2		—
Total nonaccrual loans	$	401,310	$	423,003

The following table presents an aging analysis of loans and leases, including past due loans, by loan class at March 31, 2017 and December 31, 2016: (1)

	March 31, 2017
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	$	77,998	$	11,428	$	77,392	$	166,818	$	27,941,592	$	67,514	$	—	$	28,175,924	$	15,054	(2)
Commercial real estate	38,046		460		26,281		64,787		7,005,734		22,597		—		7,093,118		14,499
Automobile	70,564		15,517		8,331		94,412		11,058,889		—		1,793		11,155,094		8,123

Home equity	43,532		18,464		58,631		120,627		9,850,680		—		2,987		9,974,294		15,453
Residential mortgage	91,831		38,144		112,207		242,182		7,495,211		—		91,744		7,829,137		69,244		(3)
RV and marine finance	10,101		3,064		2,202		15,367		1,918,199		—		1,417		1,934,983		2,200
Other consumer	9,234		3,766		3,369		16,369		918,949		—		401		935,719		3,370
Total loans and leases	$	341,306	$	90,843	$	288,413	$	720,562	$	66,189,254	$	90,111	$	98,342	$	67,098,269	$	127,943

	December 31, 2016
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	42,052		20,136		74,174		136,362		27,854,012		68,338		—		28,058,712		18,148		(2)
Commercial real estate	21,187		3,202		29,659		54,048		7,212,811		34,042		—		7,300,901		17,215
Automobile loans	76,283		17,188		10,442		103,913		10,862,715		—		2,154		10,968,782		10,182
Home equity	38,899		23,903		53,002		115,804		9,986,697		—		3,273		10,105,774		11,508
Residential mortgage	122,469		37,460		116,682		276,611		7,373,414		—		74,936		7,724,961		66,952		(3)
RV and marine finance	10,009		2,230		1,566		13,805		1,831,123		—		1,519		1,846,447		1,462
Other consumer	9,442		4,324		3,894		17,660		938,322		—		437		956,419		3,895
Total loans and leases	$	320,341	$	108,443	$	289,419	$	718,203	$	66,059,094	$	102,380	$	82,319	$	66,961,996	$	129,362

(1) NALs are included in this aging analysis based on the loan’s past due status.

(2) Amounts include Huntington Technology Finance administrative lease delinquencies.

(3) Amounts include loans guaranteed by government organizations.

Allowance for Credit Losses

Huntington maintains two reserves, both of which reflect management’s judgment regarding the appropriate level necessary to absorb credit losses inherent in our loan and lease portfolio: the ALLL and the AULC. Combined, these reserves comprise the total ACL. The determination of the ACL requires significant estimates, including the timing and amounts of expected future cash flows on impaired loans and leases, consideration of current economic conditions, and historical loss experience pertaining to pools of homogeneous loans and leases, all of which may be susceptible to change.

The appropriateness of the ACL is based on management’s current judgments about the credit quality of the loan portfolio. These judgments consider on-going evaluations of the loan and lease portfolio, including such factors as the differing economic risks associated with each loan category, the financial condition of specific borrowers, the level of delinquent loans, the value of any collateral and, where applicable, the existence of any guarantees or other documented support. Further, management evaluates the impact of changes in interest rates and overall economic conditions on the ability of borrowers to meet their financial obligations when quantifying our exposure to credit losses and assessing the appropriateness of our ACL at each reporting date. In addition to general economic conditions and the other factors described above, additional factors also considered include: the impact of increasing or decreasing commercial real estate values and the development of new or expanded Commercial business segments. Also, the ACL assessment includes the on-going assessment of credit quality metrics, and a comparison of certain ACL benchmarks to current performance.

The ALLL consists of two components: (1) the transaction reserve, which includes a loan level allocation, specific reserves related to loans considered to be impaired, and loans involved in troubled debt restructurings, and (2) the general reserve. The transaction reserve component includes both (1) an estimate of loss based on pools of commercial and consumer loans and leases with similar characteristics, and (2) an estimate of loss based on an impairment review of each impaired C&I and CRE loan where obligor balance is greater than $1 million. For the C&I and CRE portfolios, the estimate of loss based on pools of loans and leases with similar characteristics is made by applying a PD factor and a LGD factor to each individual loan based on a regularly updated loan grade, using a standardized loan grading system. The PD factor and an LGD factor are determined for each loan grade using statistical models based on historical performance data. The PD factor considers on-going reviews of the financial performance of the specific borrower, including cash flow, debt-service coverage ratio, earnings power, debt level, and equity position, in conjunction with an assessment of the borrower’s industry and future prospects. The LGD factor considers analysis of the type of collateral and the relative LTV ratio. These reserve factors are developed based on credit migration models that track historical movements of loans between loan ratings over time and a combination of long-term average loss experience of our own portfolio and external industry data.

In the case of more homogeneous portfolios, such as automobile loans, home equity loans, residential mortgage loans and RV and marine finance, the determination of the transaction reserve also incorporates PD and LGD factors. The estimate of loss is based on pools of loans and leases with similar characteristics. The PD factor considers current credit scores unless the account is delinquent, in which case a higher PD factor is used. The credit score provides a basis for understanding the borrower’s past and current payment performance, and this information is used to estimate expected losses over the emergence period. The performance of first-lien loans ahead of our junior-lien loans is available to use as part of our updated score process. The LGD factor considers analysis of the type of collateral and the relative LTV ratio. Credit scores, models, analyses, and other factors used to determine both the PD and LGD factors are updated frequently to capture the recent behavioral characteristics of the subject portfolios, as well as any changes in loss mitigation or credit origination strategies, and adjustments to the reserve factors are made as required.

The general reserve consists of various risk-profile reserve components. The risk-profile component considers items unique to our structure, policies, processes, and portfolio composition, as well as qualitative measurements and assessments of the loan portfolios including, but not limited to, management quality, concentrations, portfolio composition, industry comparisons, and internal review functions.

The estimate for the AULC is determined using the same procedures and methodologies as used for the ALLL. The loss factors used in the AULC are the same as the loss factors used in the ALLL while also considering a historical utilization of unused commitments. The AULC is reflected in accrued expenses and other liabilities in the Unaudited Condensed Consolidated Balance Sheets.

The acquired loans were recorded at their fair value as of the acquisition date and the prior ALLL was eliminated. An ALLL for acquired loans is estimated using a methodology similar to that used for originated loans. The allowance determined for each acquired loan is compared to the remaining fair value adjustment for that loan. If the computed allowance is greater, the excess is added to the allowance through a provision for loan losses. If the computed allowance is less, no additional allowance is recognized.

The ACL is increased through a provision for credit losses that is charged to earnings, based on Management’s quarterly evaluation of the factors previously mentioned, and is reduced by charge-offs, net of recoveries, and the ACL associated with loans sold or transferred to held for sale.

The following table presents ALLL and AULC activity by portfolio segment for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2017:
ALLL balance, beginning of period	$	451,091		$	187,322		$	638,413
Loan charge-offs	(23,669		)	(47,046		)	(70,715		)
Recoveries of loans previously charged-off	17,815			13,462			31,277
Provision (reduction in allowance) for loan and lease losses	35,145			38,534			73,679
Allowance for loans sold or transferred to loans held for sale	(74		)	—			(74		)
ALLL balance, end of period	$	480,308		$	192,272		$	672,580
AULC balance, beginning of period	$	86,543		$	11,336		$	97,879
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,356			(8,397		)	(6,041		)
AULC balance, end of period	$	88,899		$	2,939		$	91,838
ACL balance, end of period	$	569,207		$	195,211		$	764,418

(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(28,949		)	(30,743		)	(59,692		)
Recoveries of loans previously charged-off	39,911			11,229			51,140
Provision for (reduction in allowance) loan and lease losses	12,726			11,612			24,338
Allowance for loans sold or transferred to loans held for sale	—			90			90
ALLL balance, end of period	$	422,441		$	191,278		$	613,719
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,424			820			3,244
AULC balance, end of period	$	65,872		$	9,453		$	75,325
ACL balance, end of period	$	488,313		$	200,731		$	689,044

Any loan in any portfolio may be charged-off prior to the policies described below if a loss confirming event has occurred. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure, or receipt of an asset valuation indicating a collateral deficiency and that asset is the sole source of repayment. Additionally, discharged, collateral dependent non-reaffirmed debt in Chapter 7 bankruptcy filings will result in a charge-off to estimated collateral value, less anticipated selling costs.

C&I and CRE loans are either fully or partially charged-off at 90-days past due. Automobile, RV and marine finance loans and other consumer loans are charged-off at 120-days past due. First-lien and junior-lien home equity loans are charged-off to the estimated fair value of the collateral, less anticipated selling costs, at 150-days past due and 120-days past due, respectively. Residential mortgages are charged-off to the estimated fair value of the collateral at 150-days past due.

Credit Quality Indicators

To facilitate the monitoring of credit quality for C&I and CRE loans, and for purposes of determining an appropriate ACL level for these loans, Huntington utilizes the following internally defined categories of credit grades:

Pass - Higher quality loans that do not fit any of the other categories described below.

OLEM - The credit risk may be relatively minor yet represent a risk given certain specific circumstances. If the potential weaknesses are not monitored or mitigated, the loan may weaken or the collateral may be inadequate to protect Huntington’s position in the future.

Substandard - Inadequately protected loans by the borrower’s ability to repay, equity, and/or the collateral pledged to secure the loan. These loans have identified weaknesses that could hinder normal repayment or collection of the debt. It is likely Huntington will sustain some loss if any identified weaknesses are not mitigated.

Doubtful - Loans that have all of the weaknesses inherent in those loans classified as Substandard, with the added elements of the full collection of the loan is improbable and that the possibility of loss is high.

The categories above, which are derived from standard regulatory rating definitions, are assigned upon initial approval of the loan or lease and subsequently updated as appropriate.

Commercial loans categorized as OLEM, Substandard, or Doubtful are considered Criticized loans. Commercial loans categorized as Substandard or Doubtful are both considered Classified loans.

For all classes within the consumer loan portfolios, each loan is assigned a specific PD factor that is partially based on the borrower’s most recent credit bureau score, which we update quarterly. A credit bureau score is a credit score developed by Fair Isaac Corporation based on data provided by the credit bureaus. The credit bureau score is widely accepted as the standard measure of consumer credit risk used by lenders, regulators, rating agencies, and consumers. The higher the credit bureau score, the higher likelihood of repayment and therefore, an indicator of higher credit quality.

Huntington assesses the risk in the loan portfolio by utilizing numerous risk characteristics. The classifications described above, and also presented in the table below, represent one of those characteristics that are closely monitored in the overall credit risk management processes.

The following table presents each loan and lease class by credit quality indicator at March 31, 2017 and December 31, 2016:

	March 31, 2017
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,216,400	$	808,467	$	1,131,835	$	19,222	$	28,175,924
Commercial real estate	6,867,440		120,212		103,983		1,483		7,093,118
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,445,124	$	4,254,397	$	1,172,859	$	280,921	$	11,153,301
Home equity	6,131,710		2,924,593		631,268		283,736		9,971,307
Residential mortgage	4,643,664		2,406,782		611,675		75,272		7,737,393
RV and marine finance	1,179,561		699,701		16,202		38,102		1,933,566
Other consumer	333,683		440,599		142,515		18,521		935,318

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,211,885	$	810,287	$	1,028,819	$	7,721	$	28,058,712
Commercial real estate	7,042,304		96,975		159,098		2,524		7,300,901
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,369,085	$	4,043,611	$	1,298,460	$	255,472	$	10,966,628
Home equity	6,280,328		2,891,330		637,560		293,283		10,102,501
Residential mortgage	4,662,777		2,285,121		615,067		87,060		7,650,025
RV and marine finance	1,064,143		644,039		72,995		63,751		1,844,928
Other consumer	346,867		455,959		133,243		19,913		955,982

(1) Excludes loans accounted for under the fair value option.

(2) Reflects most recent customer credit scores.

(3) Reflects deferred fees and costs, loans in process, loans to legal entities, etc.

Impaired Loans

For all classes within the C&I and CRE portfolios, all loans with an obligor balance of $1 million or greater are evaluated on a quarterly basis for impairment. Generally, consumer loans within any class are not individually evaluated on a regular basis for impairment. However, certain home equity and residential mortgage loans are measured for impairment based on the underlying collateral value. All TDRs, regardless of the outstanding balance amount, are also considered to be impaired. Loans acquired with evidence of deterioration of credit quality since origination for which it is probable at acquisition that all contractually required payments will not be collected are also considered to be impaired.

Once a loan has been identified for an assessment of impairment, the loan is considered impaired when, based on current information and events, it is probable that all amounts due according to the contractual terms of the loan agreement will not be collected. This determination requires significant judgment and use of estimates, and the eventual outcome may differ significantly from those estimates.

When a loan in any class has been determined to be impaired, the amount of the impairment is measured using the present value of expected future cash flows discounted at the loan’s effective interest rate or, as a practical expedient, the observable market price of the loan, or the fair value of the collateral, less anticipated selling costs, if the loan is collateral dependent. When the present value of expected future cash flows is used, the effective interest rate is the original contractual interest rate of the loan adjusted for any cost, fee, premium, or discount. When the contractual interest rate is variable, the effective interest rate of the loan changes over time. A specific reserve is established as a component of the ALLL when a loan has been determined to be impaired. Subsequent to the initial measurement of impairment, if there is a significant change to the impaired loan’s expected future cash flows, or if actual cash flows are significantly different from the cash flows previously estimated, Huntington recalculates the impairment and appropriately adjusts the specific reserve. Similarly, if Huntington measures impairment based on the observable market price of an impaired loan or the fair value of the collateral of an impaired collateral dependent loan, Huntington will adjust the specific reserve.

When a loan within any class is impaired, the accrual of interest income is discontinued unless the receipt of principal and interest is no longer in doubt. Interest income on TDRs is accrued when all principal and interest is expected to be collected under the post-modification terms. Cash receipts on nonaccruing impaired loans within any class are generally applied entirely against principal until the loan has been collected in full (including already charged-off portion), after which time any additional cash receipts are recognized as interest income. Cash receipts on accruing impaired loans within any class are applied in the same manner as accruing loans that are not considered impaired.

The following tables present the balance of the ALLL attributable to loans by portfolio segment individually and collectively evaluated for impairment and the related loan and lease balance at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at March 31, 2017:
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	24,519	$	11,888	$	36,407
Attributable to loans collectively evaluated for impairment	455,789		180,384		636,173
Total ALLL balance	$	480,308	$	192,272	$	672,580
Loan and Lease Ending Balances at March 31, 2017: (1)
Portion of loan and lease ending balance:
Purchased credit-impaired loans	$	90,111	$	—	$	90,111
Individually evaluated for impairment	425,793		457,790		883,583
Collectively evaluated for impairment	34,753,138		31,273,095		66,026,233
Total loans and leases evaluated for impairment	$	35,269,042	$	31,730,885	$	66,999,927

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2016
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	10,525	$	11,021	$	21,546
Attributable to loans collectively evaluated for impairment	440,566		176,301		616,867
Total ALLL balance:	$	451,091	$	187,322	$	638,413
Loan and Lease Ending Balances at December 31, 2016 (1)
Portion of loan and lease ending balances:
Purchased credit-impaired loans	$	102,380	$	—	$	102,380
Individually evaluated for impairment	415,624		457,890		873,514
Collectively evaluated for impairment	34,841,609		31,062,174		65,903,783
Total loans and leases evaluated for impairment	$	35,359,613	$	31,520,064	$	66,879,677

(1) Excludes loans accounted for under the fair value option.

The following tables present by class the ending, unpaid principal balance, and the related ALLL, along with the average balance and interest income recognized only for impaired loans and leases and purchased credit-impaired loans: (1), (2)

	March 31, 2017						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	250,789	$	290,673	$	—	$	275,409	$	4,500
Commercial real estate	86,621		117,745		—		85,829		2,000
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (3)	278,368		306,613		33,678		334,179		1,906
Commercial real estate (4)	41,416		49,444		2,810		69,094		467
Automobile	32,731		32,942		2,004		31,846		534
Home equity (6)	326,755		360,622		16,232		323,079		3,949
Residential mortgage (6) (7)	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57
Total
Commercial and industrial	529,157		597,286		33,678		609,588		6,406
Commercial real estate	128,037		167,189		2,810		154,923		2,467
Automobile	32,731		32,942		2,004		31,846		534
Home equity	326,755		360,622		16,232		323,079		3,949
Residential mortgage	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57

	December 31, 2016						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	261,144	$	1,233
Commercial real estate	88,817		126,152		—		71,807		1,616
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		1,473		2
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		45		102
With an allowance recorded:
Commercial and industrial (3)	406,243		448,121		22,259		264,084		3,086
Commercial real estate (4)	97,238		107,512		3,434		79,857		758
Automobile	30,961		31,298		1,850		32,284		578
Home equity (6)	319,404		352,722		15,032		250,016		2,968
Residential mortgage (6) (7)	327,753		363,099		12,849		362,280		3,036
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,799		66
Total
Commercial and industrial	705,849		806,833		22,259		525,228		4,319
Commercial real estate	186,055		233,664		3,434		151,664		2,374
Automobile	30,961		31,298		1,850		32,284		578
Home equity	319,404		352,722		15,032		250,016		2,968
Residential mortgage	327,753		363,099		12,849		363,753		3,038
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,844		168

(1) These tables do not include loans fully charged-off.

(2) All automobile, RV and marine finance and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(3) At March 31, 2017 and December 31, 2016, commercial and industrial loans with an allowance recorded of $117 million and $293 million, respectively, were considered impaired due to their status as a TDR.

(4) At March 31, 2017 and December 31, 2016, commercial real estate loans with an allowance recorded of $24 million and $81 million, respectively, were considered impaired due to their status as a TDR.

(5) The differences between the ending balance and unpaid principal balance amounts represent partial charge-offs.

(6) Includes home equity and residential mortgages considered to be collateral dependent as well as home equity and mortgage loans considered impaired due to their status as a TDR.

(7) At March 31, 2017 and December 31, 2016, residential mortgage loans with an allowance recorded of $30 million and $29 million, respectively, were guaranteed by the U.S. government.

TDR Loans

TDRs are modified loans where a concession was provided to a borrower experiencing financial difficulties. Loan modifications are considered TDRs when the concessions provided are not available to the borrower through either normal channels or other sources. However, not all loan modifications are TDRs. Acquired, non-purchased credit impaired loan are only considered for TDR reporting for modifications made subsequent to acquisition.

The following table presents by class and by the reason for the modification, the number of contracts, post-modification outstanding balance, and the financial effects of the modification for the three-month periods ended March 31, 2017 an 2016:

	New Troubled Debt Restructurings During The Three-Month Period Ended (1)
	March 31, 2017						March 31, 2016
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)			Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)
Commercial and industrial:
Interest rate reduction	1	$	19	$	6		1	$	17	$	(1	)
Amortization or maturity date change	236	112,425		(1,002		)	184	122,658		572
Other	3	160		(27		)	8	858		(4		)
Total Commercial and industrial	240	112,604		(1,023		)	193	123,533		567
Commercial real estate:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	24	31,263		(388		)	24	33,795		(559		)
Other	—	—		—			2	263		16
Total commercial real estate:	24	31,263		(388		)	26	34,058		(543		)
Automobile:
Interest rate reduction	14	178		5			4	42		2
Amortization or maturity date change	477	4,301		111			421	3,901		220
Chapter 7 bankruptcy	240	1,822		29			317	2,562		115
Other	—	—		—			—	—		—
Total Automobile	731	6,301		145			742	6,505		337
Home equity:
Interest rate reduction	8	562		7			20	1,384		67
Amortization or maturity date change	106	5,496		(674		)	229	11,890		(1,282		)
Chapter 7 bankruptcy	87	3,619		1,038			99	3,597		733
Other	58	3,729		(326		)	—	—		—
Total Home equity	259	13,406		45			348	16,871		(482		)
Residential mortgage:
Interest rate reduction	2	110		(9		)	5	657		(32		)
Amortization or maturity date change	99	11,071		(258		)	92	10,759		(577		)
Chapter 7 bankruptcy	24	2,691		(136		)	17	1,505		70
Other	16	1,920		14			—	—		—
Total Residential mortgage	141	15,792		(389		)	114	12,921		(539		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	14	476		12			—	—		—
Chapter 7 bankruptcy	15	210		4			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	29	686		16			—	—		—

Other consumer:
Interest rate reduction	1	78		2			—	—		—
Amortization or maturity date change	2	267		7			4	555		24
Chapter 7 bankruptcy	1	4		—			7	66		7
Other	—	—		—			—	—		—
Total Other consumer	4	349		9			11	621		31
Total new troubled debt restructurings	1,428	$	180,401	$	(1,585	)	1,434	$	194,509	$	(629	)

(1) TDRs may include multiple concessions and the disclosure classifications are based on the primary concession provided to the borrower.

(2) Amount represents the financial impact via provision for loan and lease losses as a result of the modification.

Pledged Loans and Leases

At March 31, 2017, the Bank has access to the Federal Reserve’s discount window and advances from the FHLB – Cincinnati. As of March 31, 2017, these borrowings and advances are secured by $29.3 billion of loans and securities.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which we have re-branded Huntington Technology Finance. Huntington assumed debt associated with a related securitization. As of March 31, 2017, the debt is secured by $55 million of leases held by the trust.

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AVAILABLE-FOR-SALE AND OTHER SECURITIES

3 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

AVAILABLE-FOR-SALE AND OTHER SECURITIES

AVAILABLE-FOR-SALE AND OTHER SECURITIES

Listed below are the contractual maturities of available-for-sale and other securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
U.S. Treasury, Federal agency, and other agency securities:
U.S. Treasury:
1 year or less	$	6,379	$	6,383	$	4,978	$	4,988
After 1 year through 5 years	502		507		502		509
After 5 years through 10 years	—		—		—		—
After 10 years	—		—		—		—
Total U.S. Treasury	6,881		6,890		5,480		5,497
Federal agencies: mortgage-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	41,925		41,995		46,591		46,762
After 5 years through 10 years	273,555		274,738		173,941		176,404
After 10 years	11,099,533		10,905,134		10,630,929		10,450,176
Total Federal agencies: mortgage-backed securities	11,415,013		11,221,867		10,851,461		10,673,342
Other agencies:
1 year or less	4,354		4,417		4,302		4,367
After 1 year through 5 years	9,503		9,690		5,092		5,247
After 5 years through 10 years	75,673		75,736		63,618		63,928
After 10 years	—		—		—		—
Total other agencies	89,530		89,843		73,012		73,542

Total U.S. Treasury, Federal agency, and other agency securities	11,511,424		11,318,600		10,929,953		10,752,381
Municipal securities:
1 year or less	180,536		178,416		169,636		166,887
After 1 year through 5 years	951,261		953,776		933,893		933,903
After 5 years through 10 years	1,481,804		1,493,797		1,463,459		1,464,583
After 10 years	689,993		691,165		693,440		684,684
Total municipal securities	3,303,594		3,317,154		3,260,428		3,250,057
Asset-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	88,216		88,681		80,700		80,560
After 5 years through 10 years	168,634		170,102		223,352		224,565
After 10 years	537,534		508,154		520,072		488,356
Total asset-backed securities	794,384		766,937		824,124		793,481
Corporate debt:
1 year or less	59,021		59,429		43,223		43,603
After 1 year through 5 years	64,529		66,027		78,430		80,196
After 5 years through 10 years	34,681		35,362		32,523		32,865
After 10 years	36,098		37,863		40,361		42,019
Total corporate debt	194,329		198,681		194,537		198,683
Other:
1 year or less	1,652		1,652		1,650		1,650
After 1 year through 5 years	2,300		2,275		2,302		2,283
After 5 years through 10 years	—		—		—		—
After 10 years	46		46		10		10
Nonmarketable equity securities	552,628		552,628		547,704		547,704
Mutual funds	14,331		14,331		15,286		15,286
Marketable equity securities	861		1,301		861		1,302
Total other	571,818		572,233		567,813		568,235
Total available-for-sale and other securities	$	16,375,549	$	16,173,605	$	15,776,855	$	15,562,837

Other securities at March 31, 2017 and December 31, 2016 include nonmarketable equity securities of $249 million and $249 million of stock issued by the FHLB and $303 million and $299 million of Federal Reserve Bank stock, respectively. Non-marketable equity securities are recorded at amortized cost. Other securities also include Mutual funds and marketable equity securities.

The following tables provide amortized cost, fair value, and gross unrealized gains and losses recognized in OCI by investment category at March 31, 2017 and December 31, 2016:

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
U.S. Treasury	$	6,881	$	9	$	—		$	6,890
Federal agencies:
Mortgage-backed securities	11,415,013		10,882		(204,028		)	11,221,867
Other agencies	89,530		356		(43		)	89,843
Total U.S. Treasury, Federal agency securities	11,511,424		11,247		(204,071		)	11,318,600
Municipal securities	3,303,594		39,687		(26,127		)	3,317,154
Asset-backed securities	794,384		2,225		(29,672		)	766,937
Corporate debt	194,329		4,357		(5		)	198,681
Other securities	571,818		441		(26		)	572,233
Total available-for-sale and other securities	$	16,375,549	$	57,957	$	(259,901	)	$	16,173,605

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
U.S. Treasury	$	5,480	$	17	$	—		$	5,497
Federal agencies:
Mortgage-backed securities	10,851,461		12,548		(190,667		)	10,673,342
Other agencies	73,012		536		(6		)	73,542
Total U.S. Treasury, Federal agency securities	10,929,953		13,101		(190,673		)	10,752,381
Municipal securities	3,260,428		28,431		(38,802		)	3,250,057
Asset-backed securities	824,124		1,492		(32,135		)	793,481
Corporate debt	194,537		4,161		(15		)	198,683
Other securities	567,813		441		(19		)	568,235
Total available-for-sale and other securities	$	15,776,855	$	47,626	$	(261,644	)	$	15,562,837

The following tables provide detail on investment securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	9,846,004	$	(202,610	)	$	40,432	$	(1,418	)	$	9,886,436	$	(204,028	)
Other agencies	25,475		(43		)	—		—			25,475		(43		)
Total Federal agency securities	9,871,479		(202,653		)	40,432		(1,418		)	9,911,911		(204,071		)
Municipal securities	859,848		(19,825		)	257,829		(6,302		)	1,117,677		(26,127		)
Asset-backed securities	260,870		(2,268		)	201,436		(27,404		)	462,306		(29,672		)
Corporate debt	694		(5		)	200		—			894		(5		)
Other securities	785		(15		)	1,489		(11		)	2,274		(26		)
Total temporarily impaired securities	$	10,993,676	$	(224,766	)	$	501,386	$	(35,135	)	$	11,495,062	$	(259,901	)

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	8,908,470	$	(189,318	)	$	41,706	$	(1,349	)	$	8,950,176	$	(190,667	)
Other agencies	924		(6		)	—		—			924		(6		)
Total Federal agency securities	8,909,394		(189,324		)	41,706		(1,349		)	8,951,100		(190,673		)
Municipal securities	1,412,152		(29,175		)	272,292		(9,627		)	1,684,444		(38,802		)
Asset-backed securities	361,185		(3,043		)	178,924		(29,092		)	540,109		(32,135		)
Corporate debt	3,567		(15		)	200		—			3,767		(15		)
Other securities	790		(11		)	1,492		(8		)	2,282		(19		)
Total temporarily impaired securities	$	10,687,088	$	(221,568	)	$	494,614	$	(40,076	)	$	11,181,702	$	(261,644	)

At March 31, 2017, the carrying value of investment securities pledged to secure public and trust deposits, trading account liabilities, U.S. Treasury demand notes, and security repurchase agreements totaled $5.2 billion. There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10% of shareholders’ equity at March 31, 2017.

The following table is a summary of realized securities gains and losses for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Gross gains on sales of securities	$	545		$	—
Gross (losses) on sales of securities	(553		)	—
Net gain on sales of securities	$	(8	)	$	—

Security Impairment

Huntington evaluates the available-for-sale securities portfolio on a quarterly basis for impairment. The Company conducts a comprehensive security-level assessment on all available-for-sale securities. Huntington does not intend to sell, nor does it believe it will be required to sell these securities until the amortized cost is recovered, which may be maturity. Impairment would exist when the present value of the expected cash flows are not sufficient to recover the entire amortized cost basis at the balance sheet date. Under these circumstances, any credit impairment would be recognized in earnings. The contractual terms and/or cash flows of the investments do not permit the issuer to settle the securities at a price less than the amortized cost.

The highest risk segment in our investment portfolio is the trust preferred CDO securities which are in the asset-backed securities portfolio. This portfolio is in run off, and the Company has not purchased these types of securities since 2005. The fair values of the CDO assets have been impacted by various market conditions. The unrealized losses are primarily the result of wider liquidity spreads on asset-backed securities and the longer expected average lives of the trust-preferred CDO securities, due to changes in the expectations of when the underlying securities will be repaid.

Collateralized Debt Obligations are backed by a pool of debt securities issued by financial institutions. The collateral generally consists of trust-preferred securities and subordinated debt securities issued by banks, bank holding companies, and insurance companies. Many collateral issuers have the option of deferring interest payments on their debt for up to five years. A full cash flow analysis is used to estimate fair values and assess impairment for each security within this portfolio. A third party pricing specialist with direct industry experience in pooled-trust-preferred security evaluations is engaged to provide assistance estimating the fair value and expected cash flows on this portfolio. The full cash flow analysis is completed by evaluating the relevant credit and structural aspects of each pooled-trust-preferred security in the portfolio, including collateral performance projections for each piece of collateral in the security and terms of the security’s structure. The credit review includes an analysis of profitability, credit quality, operating efficiency, leverage, and liquidity using available financial and regulatory information for each underlying collateral issuer. The analysis also includes a review of historical industry default data, current / near-term operating conditions, and the impact of macroeconomic and regulatory changes. Using the results of the analysis, the Company estimates appropriate default and recovery probabilities for each piece of collateral then estimates the expected cash flows for each security. The fair value of each security is obtained by discounting the expected cash flows at a market discount rate. The market discount rate is determined by reference to yields observed in the market for similarly rated collateralized debt obligations, specifically high-yield collateralized loan obligations. The relatively high market discount rate is reflective of the uncertainty of the cash flows and illiquid nature of these securities. The large differential between the fair value and amortized cost of some of the securities reflects the high market discount rate and the expectation that the majority of the cash flows will not be received until near the final maturity of the security (the final maturities range from 2032 to 2035).

The following table summarizes the relevant characteristics of the Company's CDO securities portfolio, which are included in asset-backed securities, at March 31, 2017. Each security is part of a pool of issuers and supports a more senior tranche of securities except for the MM Comm III securities which are the most senior class.

Collateralized Debt Obligation Securities

(dollar amounts in thousands)

Deal Name	Par Value		Amortized Cost		Fair Value		Unrealized Loss (2)			Lowest Credit Rating (3)	# of Issuers Currently Performing/ Remaining (4)	Actual Deferrals and Defaults as a % of Original Collateral	Expected Defaults as a % of Remaining Performing Collateral	Excess Subordination (5)
ICONS	$	18,594	$	18,594	$	15,416	$	(3,178	)	BB	19/21	7	13	55
MM Comm III	4,573		4,369		3,625		(744		)	BB+	5/8	5	6	39
Pre TSL IX (1)	5,000		3,955		3,285		(670		)	C	27/37	16	8	10
Pre TSL XI (1)	25,000		19,413		15,923		(3,490		)	C	43/53	14	8	14
Reg Diversified (1)	25,500		4,195		1,832		(2,363		)	D	20/36	33	8	—
Tropic III	31,000		31,000		19,411		(11,589		)	BB	27/36	16	7	42
Total at March 31, 2017	$	109,667	$	81,526	$	59,492	$	(22,034	)
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)

(1) Security was determined to have OTTI. As such, the amortized cost is net of recorded credit impairment.

(2) The majority of securities have been in a continuous loss position for 12 months or longer.

(3) For purposes of comparability, the lowest credit rating expressed is equivalent to Fitch ratings even where the lowest rating is based on another nationally recognized credit rating agency.

(4) Includes both banks and/or insurance companies.

(5) Excess subordination percentage represents the additional defaults in excess of both current and projected defaults that the CDO can absorb before the bond experiences credit impairment. Excess subordinated percentage is calculated by (a) determining what percentage of defaults a deal can experience before the bond has credit impairment, and (b) subtracting from this default breakage percentage both total current and expected future default percentages.

For the three-month periods ended March 31, 2017 and 2016, the following table summarizes by security type the total OTTI losses recognized in the Unaudited Condensed Consolidated Statements of Income for securities evaluated for impairment as described above.

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—	$	—
Municipal Securities	24		—
Total available-for-sale and other securities	$	24	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the three-month periods ended March 31, 2017 and 2016 as follows:

	Three Months Ended March 31,
(dollar amounts in thousands)	2017			2016
Balance, beginning of period	$	11,796		$	18,368
Reductions from sales	(4,558		)	—
Additional credit losses	24			—
Balance, end of period	$	7,262		$	18,368

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HELD-TO-MATURITY SECURITIES

3 Months Ended

Mar. 31, 2017

Held-to-maturity Securities [Abstract]

HELD-TO-MATURITY SECURITIES

HELD-TO-MATURITY SECURITIES

These are debt securities that Huntington has the intent and ability to hold until maturity. The debt securities are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts using the interest method.

Listed below are the contractual maturities of held-to-maturity securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Federal agencies: mortgage-backed securities:
1 year or less	$	—	$	—	$	—	$	—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	59,710		59,420		41,261		40,791
After 10 years	6,887,466		6,857,540		7,157,083		7,139,943
Total Federal agencies: mortgage-backed securities	6,947,176		6,916,960		7,198,344		7,180,734
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	382,617		383,290		398,341		399,452
After 10 years	197,714		195,990		204,083		201,180
Total other agencies	580,331		579,280		602,424		600,632
Total U.S. Government backed agencies	7,527,507		7,496,240		7,800,768		7,781,366
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,010		5,862		6,171		5,902
Total municipal securities	6,010		5,862		6,171		5,902
Total held-to-maturity securities	$	7,533,517	$	7,502,102	$	7,806,939	$	7,787,268

The following table provides amortized cost, gross unrealized gains and losses, and fair value by investment category at March 31, 2017 and December 31, 2016:

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	6,947,176	$	11,534	$	(41,750	)	$	6,916,960
Other agencies	580,331		1,886		(2,937		)	579,280
Total U.S. Government backed agencies	7,527,507		13,420		(44,687		)	7,496,240
Municipal securities	6,010		—		(148		)	5,862
Total held-to-maturity securities	$	7,533,517	$	13,420	$	(44,835	)	$	7,502,102

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	7,198,344	$	20,883	$	(38,493	)	$	7,180,734
Other agencies	602,424		1,690		(3,482		)	600,632
Total U.S. Government backed agencies	7,800,768		22,573		(41,975		)	7,781,366
Municipal securities	6,171		—		(269		)	5,902
Total held-to-maturity securities	$	7,806,939	$	22,573	$	(42,244	)	$	7,787,268

The following tables provide detail on held-to-maturity securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	4,852,958	$	(35,507	)	$	169,422	$	(6,243	)	$	5,022,380	$	(41,750	)
Other agencies	412,793		(2,937		)	—		—			412,793		(2,937		)
Total U.S. Government backed securities	5,265,751		(38,444		)	169,422		(6,243		)	5,435,173		(44,687		)
Municipal securities	5,862		(148		)	—		—			5,862		(148		)
Total temporarily impaired securities	$	5,271,613	$	(38,592	)	$	169,422	$	(6,243	)	$	5,441,035	$	(44,835	)

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	2,855,360	$	(31,470	)	$	186,226	$	(7,023	)	$	3,041,586	$	(38,493	)
Other agencies	413,207		(3,482		)	—		—			413,207		(3,482		)
Total U.S. Government backed securities	3,268,567		(34,952		)	186,226		(7,023		)	3,454,793		(41,975		)
Municipal securities	5,902		(269		)	—		—			5,902		(269		)
Total temporarily impaired securities	$	3,274,469	$	(35,221	)	$	186,226	$	(7,023	)	$	3,460,695	$	(42,244	)

Security Impairment

Huntington evaluates the held-to-maturity securities portfolio on a quarterly basis for impairment. Impairment would exist when the present value of the expected cash flows is not sufficient to recover the entire amortized cost basis at the balance sheet date. Under these circumstances, any impairment would be recognized in earnings. As of March 31, 2017, Management has evaluated held-to-maturity securities with unrealized losses for impairment and concluded no OTTI is required.

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LOAN SALES AND SECURITIZATIONS

3 Months Ended

Mar. 31, 2017

Transfers and Servicing [Abstract]

LOAN SALES AND SECURITIZATIONS

LOAN SALES AND SECURITIZATIONS

Residential Mortgage Loans

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Residential mortgage loans sold with servicing retained	$	845,415	$	632,466
Pretax gains resulting from above loan sales (1)	22,190		14,113

(1) Recorded in mortgage banking income.

A MSR is established only when the servicing is contractually separated from the underlying mortgage loans by sale or securitization of the loans with servicing rights retained. At initial recognition, the MSR asset is established at its fair value using assumptions consistent with assumptions used to estimate the fair value of existing MSRs. Subsequent to the initial recognition, MSRs may be measured using either the fair value method or the amortization method. The election of the fair value method or amortization method is made at the time each servicing class is established. Subsequently, servicing rights are accounted for based on the methodology chosen for each respective servicing class. Any increase or decrease in the fair value of MSRs carried under the fair value method, as well as amortization or impairment of MSRs recorded using the amortization method, during the period is recorded as an increase or decrease in mortgage banking income, which is reflected in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the three-month periods ended March 31, 2017 and 2016:

Fair Value Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Fair value, beginning of period	$	13,747		$	17,585
Change in fair value during the period due to:
Time decay (1)	(231		)	(273		)
Payoffs (2)	(364		)	(504		)
Changes in valuation inputs or assumptions (3)	155			(1,989		)
Fair value, end of period:	$	13,307		$	14,819
Weighted-average life (years)	5.6			5.2

(1) Represents decrease in value due to passage of time, including the impact from both regularly scheduled loan principal payments and partial loan paydowns.

(2) Represents decrease in value associated with loans that paid off during the period.

(3) Represents change in value resulting primarily from market-driven changes in interest rates and prepayment speeds.

Amortization Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	172,466		$	143,133
New servicing assets created	9,635			6,109
Impairment (charge) / recovery	1,800			(16,340		)
Amortization and other	(6,089		)	(5,627		)
Carrying value, end of period	$	177,812		$	127,275
Fair value, end of period	$	178,581		$	127,516
Weighted-average life (years)	7.1			6.5

MSRs do not trade in an active, open market with readily observable prices. While sales of MSRs occur, the precise terms and conditions are typically not readily available. Therefore, the fair value of MSRs is estimated using a discounted future cash flow model. The model considers portfolio characteristics, contractually specified servicing fees and assumptions related to prepayments, delinquency rates, late charges, other ancillary revenues, costs to service, and other economic factors. Changes in the assumptions used may have a significant impact on the valuation of MSRs.

MSR values are very sensitive to movements in interest rates as expected future net servicing income depends on the projected outstanding principal balances of the underlying loans, which can be greatly impacted by the level of prepayments. Huntington hedges the value of certain MSRs against changes in value attributable to changes in interest rates using a combination of derivative instruments and trading securities.

For MSRs under the fair value method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	11.90	%	$	(522	)	$	(1,007	)	10.90	%	$	(501	)	$	(970	)
Spread over forward interest rate swap rates	839 bps		(411		)	(798		)	536 bps		(454		)	(879		)

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	8.10	%	$	(4,756	)	$	(9,242	)	7.80	%	$	(4,510	)	$	(8,763	)
Spread over forward interest rate swap rates	1,064 bps		(5,518		)	(10,692		)	1,173 bps		(5,259		)	(10,195		)

Total servicing, late and other ancillary fees included in mortgage banking income amounted to $14 million and $12 million for the three-month periods ended March 31, 2017 and 2016, respectively. The unpaid principal balance of residential mortgage loans serviced for third parties was $19.1 billion and $18.9 billion at March 31, 2017 and December 31, 2016, respectively.

Automobile Loans

Huntington has retained servicing responsibilities on sold automobile loans and receives annual servicing fees and other ancillary fees on the outstanding loan balances. Automobile loan servicing rights are accounted for using the amortization method. A servicing asset is established at fair value at the time of the sale. The servicing asset is then amortized against servicing income. Impairment, if any, is recognized when carrying value exceeds the fair value as determined by calculating the present value of expected net future cash flows. The primary risk characteristic for measuring servicing assets is payoff rates of the underlying loan pools. Valuation calculations rely on the predicted payoff assumption and, if actual payoff is quicker than expected, then future value would be impaired.

Changes in the carrying value of automobile loan servicing rights for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	18,285		$	8,771
New servicing assets created	—			—
Amortization and other	(3,126		)	(1,742		)
Carrying value, end of period	$	15,159		$	7,029
Fair value, end of period	$	15,278		$	7,250
Weighted-average life (years)	4.0			3.3

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	19.95	%	$	(877	)	$	(1,695	)	19.98	%	$	(1,047	)	$	(2,026	)
Spread over forward interest rate swap rates	500 bps		(22		)	(45		)	500 bps		(26		)	(53		)

Servicing income amounted to $5 million and $3 million for the three-month periods ending March 31, 2017, and 2016, respectively. The unpaid principal balance of automobile loans serviced for third parties was $1.5 billion and $1.7 billion at March 31, 2017 and December 31, 2016, respectively.

Small Business Administration (SBA) Portfolio

The following table summarizes activity relating to SBA loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
SBA loans sold with servicing retained	$	77,672	$	45,889
Pretax gains resulting from above loan sales (1)	5,818		3,521

(1) Recorded in gain on sale of loans.

Huntington has retained servicing responsibilities on sold SBA loans and receives annual servicing fees on the outstanding loan balances. SBA loan servicing rights are accounted for using the amortization method. A servicing asset is established at fair value at the time of the sale using a discounted future cash flow model. The servicing asset is then amortized against servicing income. Impairment, if any, is recognized when carrying value exceeds the fair value as determined by calculating the present value of expected net future cash flows.

The following tables summarize the changes in the carrying value of the servicing asset for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	21,080		$	19,747
New servicing assets created	1,475			1,511
Amortization and other	(1,156		)	(1,733		)
Carrying value, end of period	$	21,399		$	19,525
Fair value, end of period	$	25,857		$	23,048
Weighted-average life (years)	3.3			3.3

A summary of key assumptions and the sensitivity of the SBA loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	7.40	%	$	(346	)	$	(687	)	7.40	%	$	(324	)	$	(644	)
Discount rate	15.00		(696		)	(1,363		)	15.00		(1,270		)	(1,870		)

Servicing income amounted to $3 million and $2 million for the three-month periods ending March 31, 2017, and 2016, respectively. The unpaid principal balance of SBA loans serviced for third parties was $1.2 billion and $1.1 billion at March 31, 2017 and December 31, 2016, respectively.

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LONG-TERM DEBT

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

LONG-TERM DEBT

LONG-TERM DEBT

In March 2017, the Bank issued $0.7 billion of senior notes at 99.994% of face value. The senior notes mature on March 10, 2020 and have a fixed coupon rate of 2.375%. The senior notes may be redeemed one month prior to the maturity date at 100% of principal plus accrued and unpaid interest. Also, in March 2017, the Bank issued $0.3 billion of senior notes at 100% of face value. The senior notes mature on March 10, 2020 and have a variable coupon rate of three month LIBOR + 51 basis points.

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OTHER COMPREHENSIVE INCOME

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

OTHER COMPREHENSIVE INCOME

OTHER COMPREHENSIVE INCOME

The components of other comprehensive income for the three-month periods ended March 31, 2017 and 2016, were as follows:

	Three Months Ended March 31, 2017
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	810		$	(286	)	$	524
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	8,996			(2,795		)	6,201
Less: Reclassification adjustment for net losses (gains) included in net income	5,874			(2,077		)	3,797
Net change in unrealized holding gains (losses) on available-for-sale debt securities	15,680			(5,158		)	10,522
Net change in unrealized holding gains (losses) on available-for-sale equity securities	—			—			—
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	(1,831		)	641			(1,190		)
Less: Reclassification adjustment for net (gains) losses included in net income	560			(196		)	364
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	(1,271		)	445			(826		)
Net change in pension and other post-retirement obligations	708			(248		)	460
Total other comprehensive income (loss)	$	15,117		$	(4,961	)	$	10,156

	Three Months Ended March 31, 2016
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	(3,634	)	$	1,285		$	(2,349	)
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	80,468			(28,685		)	51,783
Less: Reclassification adjustment for net losses (gains) included in net income	(464		)	164			(300		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	76,370			(27,236		)	49,134
Net change in unrealized holding gains (losses) on available-for-sale equity securities	104			(36		)	68
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	14,229			(4,980		)	9,249
Less: Reclassification adjustment for net (gains) losses included in net income	(644		)	224			(420		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	13,585			(4,756		)	8,829
Net change in pension and other post-retirement obligations	1,293			(452		)	841
Total other comprehensive income (loss)	$	91,352		$	(32,480	)	$	58,872

The following table presents activity in accumulated other comprehensive income (loss), net of tax, for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Unrealized gains and (losses) on debt securities (1)			Unrealized gains and (losses) on equity securities		Unrealized gains and (losses) on cash flow hedging derivatives			Unrealized gains (losses) for pension and other post- retirement obligations			Total
December 31, 2015	$	8,361		$	176	$	(3,948	)	$	(230,747	)	$	(226,158	)
Other comprehensive income before reclassifications	49,434			68		9,249			—			58,751
Amounts reclassified from accumulated OCI to earnings	(300		)	—		(420		)	841			121
Period change	49,134			68		8,829			841			58,872
March 31, 2016	$	57,495		$	244	$	4,881		$	(229,906	)	$	(167,286	)
December 31, 2016	$	(192,764	)	$	287	$	(2,634	)	$	(205,905	)	$	(401,016	)
Other comprehensive income before reclassifications	6,725			—		(1,190		)	—			5,535
Amounts reclassified from accumulated OCI to earnings	3,797			—		364			460			4,621
Period change	10,522			—		(826		)	460			10,156
March 31, 2017	$	(182,242	)	$	287	$	(3,460	)	$	(205,445	)	$	(390,860	)

(1) Amounts at March 31, 2017 and December 31, 2016 include $81 million and $82 million, respectively, of net unrealized gains on securities transferred from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. The net unrealized gains will be recognized in earnings over the remaining life of the security using the effective interest method.

The following table presents the reclassification adjustments out of accumulated OCI included in net income and the impacted line items as listed on the Unaudited Condensed Consolidated Statements of Income for the three-month periods ended March 31, 2017 and 2016:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
	Three Months Ended
(dollar amounts in thousands)	March 31, 2017			March 31, 2016
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	(3,606	)	$	464		Interest income - held-to-maturity securities - taxable
Realized gain (loss) on sale of securities	(2,244		)	—			Noninterest income - net gains (losses) on sale of securities
OTTI recorded	(24		)	—			Noninterest income - net gains (losses) on sale of securities
	(5,874		)	464			Total before tax
	2,077			(164		)	Tax (expense) benefit
	$	(3,797	)	$	300		Net of tax
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	(560	)	$	645		Interest income - loans and leases
Interest rate contracts	—			(1		)	Noninterest income - other income
	(560		)	644			Total before tax
	196			(224		)	Tax (expense) benefit
	$	(364	)	$	420		Net of tax
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(1,200	)	$	(1,785	)	Noninterest expense - personnel costs
Prior service credit	492			492			Noninterest expense - personnel costs
	(708		)	(1,293		)	Total before tax
	248			452			Tax (expense) benefit
	$	(460	)	$	(841	)	Net of tax

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EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Basic earnings per share is the amount of earnings (adjusted for dividends declared on preferred stock) available to each share of common stock outstanding during the reporting period. Diluted earnings per share is the amount of earnings available to each share of common stock outstanding during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares include incremental shares issued for stock options, restricted stock units and awards, distributions from deferred compensation plans, and the conversion of the Company’s convertible preferred. Potentially dilutive common shares are excluded from the computation of diluted earnings per share in periods in which the effect would be antidilutive. For diluted earnings per share, net income available to common shares can be affected by the conversion of the Company’s convertible preferred stock. Where the effect of this conversion would be dilutive, net income available to common shareholders is adjusted by the associated preferred dividends and deemed dividend. The calculation of basic and diluted earnings per share for the three-month periods ended March 31, 2017 and 2016, was as follows:

	Three Months Ended March 31,
(dollar amounts in thousands, except per share amounts)	2017			2016
Basic earnings per common share:
Net income	$	208,094		$	171,314
Preferred stock dividends	(18,878		)	(7,998		)
Net income available to common shareholders	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Basic earnings per common share	$	0.17		$	0.21
Diluted earnings per common share:
Net income available to common shareholders	$	189,216		$	163,316
Effect of assumed preferred stock conversion	—			—
Net income applicable to diluted earnings per share	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Dilutive potential common shares:
Stock options and restricted stock units and awards	19,139			10,385
Shares held in deferred compensation plans	2,953			2,075
Other	151			134
Dilutive potential common shares:	22,243			12,594
Total diluted average common shares issued and outstanding	1,108,617			808,349
Diluted earnings per common share	$	0.17		$	0.20

For the three-month periods ended March 31, 2017 and 2016, approximately 0.9 million and 3.5 million, respectively, of options to purchase shares of common stock were not included in the computation of diluted earnings per share because the effect would be antidilutive.

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BENEFIT PLANS

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

BENEFIT PLANS

. BENEFIT PLANS

Huntington sponsors a non-contributory defined benefit pension plan covering substantially all employees hired or rehired prior to January 1, 2010. The plan, which was modified in 2013 and no longer accrues service benefits to participants, provides benefits based upon length of service and compensation levels. The funding policy of Huntington is to contribute an annual amount that is at least equal to the minimum funding requirements but not more than the amount deductible under the Internal Revenue Code. There is no required minimum contribution for 2017.

In addition, Huntington has an unfunded defined benefit post-retirement plan that provides certain healthcare and life insurance benefits to retired employees who have attained the age of 55 and have at least 10 years of vesting service under this plan. For additional information on benefit plans, see the Benefit Plan footnote in our 2016 Form 10-K.

As part of the FirstMerit acquisition, Huntington agreed to assume and honor all FirstMerit benefit plans. The FirstMerit Pension Plan was frozen for nonvested employees and closed to new entrants after December 31, 2006. Effective December 31, 2012, the FirstMerit Pension Plan was frozen for vested employees. Additionally, FirstMerit had a post-retirement benefit plan which provided medical and life insurance for retired employees.

The following table shows the components of net periodic (benefit) cost for all plans:

	Pension Benefits								Post Retirement Benefits
	Three Months Ended March 31,								Three Months Ended March 31,
(dollar amounts in thousands)	2017					2016			2017					2016
Service cost	$	640				$	1,025		$	22				$	—
Interest cost	7,477					6,748			99					55
Expected return on plan assets	(13,803		)			(10,223		)	—					—
Amortization of prior service cost	—					—			(492		)			(492		)
Amortization of (gain) loss	1,747					1,864			(55		)			(72		)
Settlements	2,500					3,400			—					—
Net periodic (benefit) cost	$	(1,439	)	(1	)	$	2,814		$	(426	)	(1	)	$	(509	)

(1) Includes expense associated with FirstMerit plans.

Huntington has a defined contribution plan that is available to eligible employees. Huntington matches participant contributions, up to the first 4% of base pay contributed to the defined contribution plan. For 2016, a discretionary profit-sharing contribution equal to 1% of eligible participants’ 2016 base pay was awarded during the 2017 first quarter. Huntington's expense related to the defined contribution plans during the first quarter 2017 and 2016 was $11 million and $8 million, respectively.

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FAIR VALUES OF ASSETS AND LIABILITIES

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

FAIR VALUES OF ASSETS AND LIABILITIES

See Note 17 “Fair Value of Assets and Liabilities” to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2016 for a description of additional valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the three-month periods ended March 31, 2017 and 2016.

Assets and Liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2017 and December 31, 2016 are summarized below:

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	423,324	$	—	$	—		$	423,324
Loans held for investment	—		54,123		44,219		—			98,342
Trading account securities:
Municipal securities	—		3,434		—		—			3,434
Other securities	94,201		150		—		—			94,351
	94,201		3,584		—		—			97,785
Available-for-sale and other securities:
U.S. Treasury securities	6,890		—		—		—			6,890
Federal agencies: Mortgage-backed	—		11,221,867		—		—			11,221,867
Federal agencies: Other agencies	—		89,843		—		—			89,843
Municipal securities	—		449,502		2,867,652		—			3,317,154
Asset-backed securities	—		707,445		59,492		—			766,937
Corporate debt	—		198,681		—		—			198,681
Other securities	15,632		3,973		—		—			19,605
	22,522		12,671,311		2,927,144		—			15,620,977
MSRs	—		—		13,307		—			13,307
Derivative assets	—		342,584		9,439		(173,603		)	178,420
Liabilities
Derivative liabilities	—		322,999		6,745		(246,192		)	83,552
Short-term borrowings	1,420		—		—		—			1,420

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	438,224	$	—	$	—		$	438,224
Loans held for investment	—		34,439		47,880		—			82,319
Trading account securities:
Municipal securities	—		1,148		—		—			1,148
Other securities	132,147		—		—		—			132,147
	132,147		1,148		—		—			133,295
Available-for-sale and other securities:
U.S. Treasury securities	5,497		—		—		—			5,497
Federal agencies: Mortgage-backed	—		10,673,342		—		—			10,673,342
Federal agencies: Other agencies	—		73,542		—		—			73,542
Municipal securities	—		452,013		2,798,044		—			3,250,057
Asset-backed securities	—		717,478		76,003		—			793,481
Corporate debt	—		198,683		—		—			198,683
Other securities	16,588		3,943		—		—			20,531
	22,085		12,119,001		2,874,047		—			15,015,133
MSRs	—		—		13,747		—			13,747
Derivative assets	—		414,412		5,747		(181,940		)	238,219
Liabilities
Derivative liabilities	—		362,777		7,870		(272,361		)	98,286
Short-term borrowings	474		—		—		—			474

(1) Amounts represent the impact of legally enforceable master netting agreements that allow the Company to settle positive and negative positions and cash collateral held or placed with the same counterparties.

The tables below present a rollforward of the balance sheet amounts for the three-month periods ended March 31, 2017 and 2016, for financial instruments measured on a recurring basis and classified as Level 3. The classification of an item as Level 3 is based on the significance of the unobservable inputs to the overall fair value measurement. However, Level 3 measurements may also include observable components of value that can be validated externally. Accordingly, the gains and losses in the table below include changes in fair value due in part to observable factors that are part of the valuation methodology.

	Level 3 Fair Value Measurements Three months ended March 31, 2017
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(333		)	—			—			—
Total gains/losses for the period:
Included in earnings	(440		)	5,150			(1,386		)	28			(63		)
Included in OCI	—			—			20,475			3,172			—
Purchases/originations	—			—			132,666			—			—
Sales	—			—			—			(19,133		)	—
Repayments	—			—			—			—			(3,598		)
Issues	—			—			—			—			—
Settlements	—			—			(82,147		)	(578		)	—
Closing balance	$	13,307		$	2,694		$	2,867,652		$	59,492		$	44,219
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(440	)	$	5,150		$	20,269		$	1,212		$	—

	Level 3 Fair Value Measurements Three months ended March 31, 2016
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	17,585		$	6,056		$	2,095,551		$	100,337		$	1,748
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(915		)	—			—			—
Total gains/losses for the period:
Included in earnings	(2,766		)	5,206			—			—			—
Included in OCI	—			—			11,840			(5,168		)	—
Purchases/originations	—			—			237,450			—			—
Sales	—			—			—			—			—
Repayments	—			—			—			—			(532		)
Issues	—			—			—			—			—
Settlements	—			—			(63,098		)	(840		)	—
Closing balance	$	14,819		$	10,347		$	2,281,743		$	94,329		$	1,216
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(2,766	)	$	5,306		$	—		$	—		$	—

(1) Transfers out of Level 3 represent the settlement value of the derivative instruments (i.e. interest rate lock agreements) that were transferred to loans held for sale, which are classified as Level 2.

The tables below summarize the classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities for the three-month periods ended March 31, 2017 and 2016:

	Level 3 Fair Value Measurements Three months ended March 31, 2017
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities			Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(440	)	$	5,150	$	—		$	—	$	—
Securities gains (losses)	—			—		(1,386		)	28		—
Interest and fee income	—			—		—			—		—
Noninterest income	—			—		—			—		(63		)
Total	$	(440	)	$	5,150	$	(1,386	)	$	28	$	(63	)

	Level 3 Fair Value Measurements Three months ended March 31, 2016
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(2,766	)	$	5,206	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		—
Interest and fee income	—			—		—		—		—
Noninterest income	—			—		—		—		—
Total	$	(2,766	)	$	5,206	$	—	$	—	$	—

Assets and liabilities under the fair value option

The following table presents the fair value and aggregate principal balance of certain assets and liabilities under the fair value option:

	March 31, 2017
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	423,324	$	408,424	$	14,900		$	—	$	—	$	—
Loans held for investment	98,342		110,234		(11,892		)	8,572		11,507		(2,935		)

	December 31, 2016
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	438,224	$	433,760	$	4,464		$	—	$	—	$	—
Loans held for investment	82,319		91,998		(9,679		)	8,408		11,082		(2,674		)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the three-month periods ended March 31, 2017 and 2016:

	Net gains (losses) from fair value changes
	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Assets
Loans held for sale	$	9,076		$	4,649
Loans held for investment	(63		)	—

	Gains (losses) included in fair value changes associated with instrument specific credit risk
	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Assets
Loans held for investment	$	—	$	90

Assets and Liabilities measured at fair value on a nonrecurring basis

Certain assets and liabilities may be required to be measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition. These assets and liabilities are not measured at fair value on an ongoing basis; however, they are subject to fair value adjustments in certain circumstances, such as when there is evidence of impairment. For the three months ended March 31, 2017, assets measured at fair value on a nonrecurring basis were as follows:

			Fair Value Measurements Using
(dollar amounts in thousands)	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Total Gains/(Losses) Three months ended March 31, 2017
MSRs	$	176,747	$	—	$	—	$	176,747	$	1,800
Impaired loans	52,367		—		—		52,367		5,267
Other real estate owned	49,887		—		—		49,887		2,363

MSRs accounted for under the amortization method are subject to nonrecurring fair value measurement when the fair value is lower than the carrying amount.

Periodically, Huntington records nonrecurring adjustments of collateral-dependent loans measured for impairment when establishing the ACL. Such amounts are generally based on the fair value of the underlying collateral supporting the loan. Appraisals are generally obtained to support the fair value of the collateral and incorporate measures such as recent sales prices for comparable properties and cost of construction. In cases where the carrying value exceeds the fair value of the collateral less cost to sell, an impairment charge is recognized.

Other real estate owned properties are included in accrued income and other assets and valued based on appraisals and third party price opinions, less estimated selling costs.

Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis

The table below presents quantitative information about the significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at March 31, 2017 and December 31, 2016:

	Quantitative Information about Level 3 Fair Value Measurements at March 31, 2017
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,307	Discounted cash flow	Constant prepayment rate	8.00% - 30.0% (12.0%)
				Spread over forward interest rate swap rates	3.0% - 10.0% (8.4%)
Derivative assets	9,439		Consensus Pricing	Net market price	-4.7% - 26.7% (2.0%)
Derivative liabilities	6,745			Estimated Pull through %	9.0% - 99.0% (78.0%)
Municipal securities	2,867,652		Discounted cash flow	Discount rate	0.0% - 10.3% (3.7%)
				Cumulative default	0.0% - 38.4% (3.1%)
				Loss given default	5.0% - 90.0% (24.0%)
Asset-backed securities	59,492		Discounted cash flow	Discount rate	5.1% - 12.1% (6.4%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	0.9% - 100% (10.9%)
				Loss given default	85% - 100% (96.1%)
				Cure given deferral	0.0% - 75.0% (32.7%)
Loans held for investment	44,219		Discounted cash flow	Discount rate	5.4% - 16.8% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	176,747		Discounted cash flow	Constant prepayment rate	6.30% - 21.2% (8.1%)
				Spread over forward interest rate swap rates	3.0% - 20.0% (10.6%)
Impaired loans	52,367		Appraisal value	NA	NA
Other real estate owned	49,887		Appraisal value	NA	NA

	Quantitative Information about Level 3 Fair Value Measurements at December 31, 2016
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,747	Discounted cash flow	Constant prepayment rate	5.63% - 34.4% (10.9%)
				Spread over forward interest rate swap rates	3.0% - 9.2% (5.4%)
Derivative assets	5,747		Consensus Pricing	Net market price	-7.1% - 25.4% (1.1%)
Derivative liabilities	7,870			Estimated Pull through %	8.1% - 99.8% (76.9%)
Municipal securities	2,798,044		Discounted cash flow	Discount rate	0.0% - 10.0% (3.6%)
				Cumulative default	0.3% - 37.8% (4.0%)
				Loss given default	5.0% - 80.0% (24.1%)
Asset-backed securities	76,003		Discounted cash flow	Discount rate	5.0% - 12.0% (6.3%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	1.1% - 100% (11.2%)
				Loss given default	85% - 100% (96.3%)
				Cure given deferral	0.0% - 75.0% (36.2%)
Loans held for investment	47,880		Discounted cash flow	Constant prepayment rate	5.4% - 16.2% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	171,309		Discounted cash flow	Constant prepayment rate	5.57% - 30.4% (7.8%)
				Spread over forward interest rate swap rates	4.2% - 20.0% (11.7%)
Impaired loans	53,818		Appraisal value	NA	NA
Other real estate owned	50,930		Appraisal value	NA	NA

The following provides a general description of the impact of a change in an unobservable input on the fair value measurement and the interrelationship between unobservable inputs, where relevant/significant. Interrelationships may also exist between observable and unobservable inputs. Such relationships have not been included in the discussion below.

A significant change in the unobservable inputs may result in a significant change in the ending fair value measurement of Level 3 instruments. In general, prepayment rates increase when market interest rates decline and decrease when market interest rates rise and higher prepayment rates generally result in lower fair values for MSR assets, Asset-backed securities, and Automobile loans.

Credit loss estimates, such as probability of default, constant default, cumulative default, loss given default, cure given deferral, and loss severity, are driven by the ability of the borrowers to pay their loans and the value of the underlying collateral and are impacted by changes in macroeconomic conditions, typically increasing when economic conditions worsen and decreasing when conditions improve. An increase in the estimated prepayment rate typically results in a decrease in estimated credit losses and vice versa. Higher credit loss estimates generally result in lower fair values. Credit spreads generally increase when liquidity risks and market volatility increase and decrease when liquidity conditions and market volatility improve.

Discount rates and spread over forward interest rate swap rates typically increase when market interest rates increase and/or credit and liquidity risks increase and decrease when market interest rates decline and/or credit and liquidity conditions improve. Higher discount rates and credit spreads generally result in lower fair market values.

Net market price and pull through percentages generally increase when market interest rates increase and decline when market interest rates decline. Higher net market price and pull through percentages generally result in higher fair values.

Fair values of financial instruments

The following table provides the carrying amounts and estimated fair values of Huntington’s financial instruments that are carried either at fair value or cost at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and short-term assets	$	1,371,868	$	1,371,868	$	1,443,037	$	1,443,037
Trading account securities	97,785		97,785		133,295		133,295
Loans held for sale	518,238		522,121		512,951		515,640
Available-for-sale and other securities	16,173,605		16,173,605		15,562,837		15,562,837
Held-to-maturity securities	7,533,517		7,502,102		7,806,939		7,787,268
Net loans and direct financing leases	66,425,689		66,275,735		66,323,583		66,294,639
Derivatives	178,420		178,420		238,219		238,219
Financial Liabilities
Deposits	77,422,510		78,238,093		75,607,717		76,161,091
Short-term borrowings	1,263,430		1,263,430		3,692,654		3,692,654
Long-term debt	9,279,140		9,419,853		8,309,159		8,387,444
Derivatives	83,552		83,552		98,286		98,286

The following table presents the level in the fair value hierarchy for the estimated fair values of only Huntington’s financial instruments that are not already on the Unaudited Condensed Consolidated Balance Sheets at fair value at March 31, 2017 and December 31, 2016:

	Estimated Fair Value Measurements at Reporting Date Using						March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,502,102	$	—	$	7,502,102
Net loans and direct financing leases	—		—		66,275,735		66,275,735
Financial Liabilities
Deposits	—		74,456,322		3,781,771		78,238,093
Short-term borrowings	1,420		—		1,262,010		1,263,430
Long-term debt	—		9,013,768		406,085		9,419,853

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,787,268	$	—	$	7,787,268
Net loans and direct financing leases	—		—		66,294,639		66,294,639
Financial Liabilities
Deposits	—		72,319,328		3,841,763		76,161,091
Short-term borrowings	474		—		3,692,180		3,692,654
Long-term debt	—		7,980,176		407,268		8,387,444

The short-term nature of certain assets and liabilities result in their carrying value approximating fair value. These include trading account securities, customers’ acceptance liabilities, short-term borrowings, bank acceptances outstanding, FHLB advances, and cash and short-term assets, which include cash and due from banks, interest-bearing deposits in banks, and federal funds sold and securities purchased under resale agreements. Loan commitments and letters-of-credit generally have short-term, variable-rate features and contain clauses that limit Huntington’s exposure to changes in customer credit quality. Accordingly, their carrying values, which are immaterial at the respective balance sheet dates, are reasonable estimates of fair value.

Certain assets, the most significant being operating lease assets, bank owned life insurance, and premises and equipment, do not meet the definition of a financial instrument and are excluded from this disclosure. Similarly, mortgage and nonmortgage servicing rights, deposit base, and other customer relationship intangibles are not considered financial instruments and are not included above. Accordingly, this fair value information is not intended to, and does not, represent Huntington’s underlying value. Many of the assets and liabilities subject to the disclosure requirements are not actively traded, requiring fair values to be estimated by Management. These estimations necessarily involve the use of judgment about a wide variety of factors, including but not limited to, relevancy of market prices of comparable instruments, expected future cash flows, and appropriate discount rates.

The following methods and assumptions were used by Huntington to estimate the fair value of the remaining classes of financial instruments:

Held-to-maturity securities

Fair values are determined by using models that are based on security-specific details, as well as relevant industry and economic factors. The most significant of these inputs are quoted market prices, and interest rate spreads on relevant benchmark securities.

Loans and Direct Financing Leases

Variable-rate loans that reprice frequently are based on carrying amounts, as adjusted for estimated credit losses. The fair values for other loans and leases are estimated using discounted cash flow analyses and employ interest rates currently being offered for loans and leases with similar terms. The rates take into account the position of the yield curve, as well as an adjustment for prepayment risk, operating costs, and profit. This value is also reduced by an estimate of expected losses and the credit risk associated in the loan and lease portfolio. The valuation of the loan portfolio reflected discounts that Huntington believed are consistent with transactions occurring in the marketplace.

Deposits

Demand deposits, savings accounts, and money market deposits are, by definition, equal to the amount payable on demand. The fair values of fixed-rate time deposits are estimated by discounting cash flows using interest rates currently being offered on certificates with similar maturities.

Debt

Long-term debt is based upon quoted market prices, which are inclusive of Huntington’s credit risk. In the absence of quoted market prices, discounted cash flows using market rates for similar debt with the same maturities are used in the determination of fair value.

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DERIVATIVE FINANCIAL INSTRUMENTS

3 Months Ended

Mar. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE FINANCIAL INSTRUMENTS

DERIVATIVE FINANCIAL INSTRUMENTS

Derivative financial instruments are recorded in the Consolidated Balance Sheets as either an asset or a liability (in accrued income and other assets or accrued expenses and other liabilities, respectively) and measured at fair value.

Derivative financial instruments can be designated as accounting hedges under GAAP. Designating a derivative as an accounting hedge allows Huntington to recognize gains and losses, less any ineffectiveness, in the income statement within the same period that the hedged item affects earnings. Gains and losses on derivatives that are not designated to an effective hedge relationship under GAAP immediately impact earnings within the period they occur.

Derivatives used in Asset and Liability Management Activities

Huntington engages in balance sheet hedging activity, principally for asset liability management purposes, to convert fixed rate assets or liabilities into floating rate or vice versa. Balance sheet hedging activity is arranged to receive hedge accounting treatment and is classified as either fair value or cash flow hedges. Fair value hedges are purchased to convert deposits and subordinated and other long-term debt from fixed-rate obligations to floating rate. Cash flow hedges are also used to convert floating rate loans made to customers into fixed rate loans.

The following table presents the gross notional values of derivatives used in Huntington’s asset and liability management activities at March 31, 2017, identified by the underlying interest rate-sensitive instruments:

(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	2,550,000	$	2,550,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	7,225,000		—		7,225,000
Total notional value at March 31, 2017	$	8,175,000	$	2,550,000	$	10,725,000

The following table presents additional information about the interest rate swaps used in Huntington’s asset and liability management activities at March 31, 2017:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	2,550,000	0.5	$	(4,371	)	1.08	%	1.19	%
Liability conversion swaps
Receive fixed—generic	8,175,000		2.8	(64,090		)	1.51		1.02
Total swap portfolio at March 31, 2017	$	10,725,000	2.3	$	(68,461	)	1.41	%	1.06	%

These derivative financial instruments were entered into for the purpose of managing the interest rate risk of assets and liabilities. Consequently, net amounts receivable or payable on contracts hedging either interest earning assets or interest bearing liabilities were accrued as an adjustment to either interest income or interest expense. The net amounts resulted in an increase to net interest income of $10 million and $21 million for the three-month periods ended March 31, 2017, and 2016, respectively.

In connection with the sale of Huntington’s Class B Visa^® shares, Huntington entered into a swap agreement with the purchaser of the shares. The swap agreement adjusts for dilution in the conversion ratio of Class B shares resulting from the Visa^® litigation. At March 31, 2017, the fair value of the swap liability of $6 million is an estimate of the exposure liability based upon Huntington’s assessment of the potential Visa^® litigation losses.

The following table presents the fair values at March 31, 2017 and December 31, 2016 of Huntington’s derivatives that are designated and not designated as hedging instruments. Amounts in the table below are presented gross without the impact of any net collateral arrangements:

Asset derivatives included in accrued income and other assets:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	42,421	$	46,440
Interest rate contracts not designated as hedging instruments	197,221		213,587
Foreign exchange contracts not designated as hedging instruments	18,431		23,265
Commodities contracts not designated as hedging instruments	73,996		108,026
Equity contracts not designated as hedging instruments	10,081		9,775
Total contracts	$	342,150	$	401,093

Liability derivatives included in accrued expenses and other liabilities:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	110,882	$	99,996
Interest rate contracts not designated as hedging instruments	127,260		143,976
Foreign exchange contracts not designated as hedging instruments	17,285		19,576
Commodities contracts not designated as hedging instruments	70,705		104,328
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	326,132	$	367,876

The changes in fair value of the fair value hedges are, to the extent that the hedging relationship is effective, recorded through earnings and offset against changes in the fair value of the hedged item.

The following table presents the change in fair value for derivatives designated as fair value hedges as well as the offsetting change in fair value on the hedged item:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	—		$	(82	)
Change in fair value of hedged deposits (1)	—			72
Change in fair value of interest rate swaps hedging subordinated notes (2)	(4,708		)	6,804
Change in fair value of hedged subordinated notes (2)	5,403			(6,804		)
Change in fair value of interest rate swaps hedging other long-term debt (2)	(10,282		)	61,032
Change in fair value of hedged other long-term debt (2)	8,535			(59,786		)

(1) Effective portion of the hedging relationship is recognized in Interest expense—deposits in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

(2) Effective portion of the hedging relationship is recognized in Interest expense—subordinated notes and other long-term debt in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

The following table presents the gains and (losses) recognized in OCI and the location in the Unaudited Condensed Consolidated Statements of Income of gains and (losses) reclassified from OCI into earnings for derivatives designated as effective cash flow hedges:

Derivatives in cash flow hedging relationships	Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (after-tax)					Location of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion)
	Three months ended March 31,						Three months ended March 31,
(dollar amounts in thousands)	2017			2016			2017		2016
Interest rate contracts
Loans	$	(1,190	)	$	9,249	Interest and fee income - loans and leases	$	560	$	(645	)
Investment Securities	—			—		Noninterest income - other income	—		1
	$	(1,190	)	$	9,249		$	560	$	(644	)

Reclassified gains and losses on swaps related to loans and investment securities and swaps related to subordinated debt are recorded within interest income and interest expense, respectively. During the next twelve months, Huntington expects to reclassify to earnings approximately $(3) million after-tax of unrealized gains (losses) on cash flow hedging derivatives currently in OCI.

To the extent these derivatives are effective in offsetting the variability of the hedged cash flows, changes in the derivatives’ fair value will not be included in current earnings but are reported as a component of OCI in the Unaudited Condensed Consolidated Statements of Changes in Shareholders’ Equity. These changes in fair value will be included in earnings of future periods when earnings are also affected by the changes in the hedged cash flows. To the extent these derivatives are not effective, changes in their fair values are immediately included in noninterest income.

The following table presents the gains and (losses) recognized in noninterest income for the ineffective portion of interest rate contracts for derivatives designated as cash flow hedges for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Derivatives in cash flow hedging relationships
Interest rate contracts
Loans	$	(103	)	$	421

Derivatives used in mortgage banking activities

Mortgage loan origination hedging activity

Huntington’s mortgage origination hedging activity is related to the hedging of the mortgage pricing commitments to customers and the secondary sale to third parties. The value of a newly originated mortgage is not firm until the interest rate is committed or locked. The interest rate lock commitments are derivative positions offset by forward commitments to sell loans.

Huntington uses two types of mortgage-backed securities in its forward commitments to sell loans. The first type of forward commitment is a “To Be Announced” (or TBA), the second is a “Specified Pool” mortgage-backed security. Huntington uses these derivatives to hedge the value of mortgage-backed securities until they are sold.

The following table summarizes the derivative assets and liabilities used in mortgage banking activities:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Derivative assets:
Interest rate lock agreements	$	9,439		$	5,747
Forward trades and options	434			13,319
Total derivative assets	9,873			19,066
Derivative liabilities:
Interest rate lock agreements	(565		)	(1,598		)
Forward trades and options	(3,047		)	(1,173		)
Total derivative liabilities	(3,612		)	(2,771		)
Net derivative asset (liability)	$	6,261		$	16,295

MSR hedging activity

Huntington’s MSR economic hedging activity uses securities and derivatives to manage the value of the MSR asset and to mitigate the various types of risk inherent in the MSR asset, including risks related to duration, basis, convexity, volatility, and yield curve. The hedging instruments include forward commitments, interest rate swaps, and options on interest rate swaps.

The total notional value of these derivative financial instruments at March 31, 2017 and December 31, 2016, was $0.2 billion and $0.3 billion, respectively. The total notional amount at March 31, 2017, corresponds to trading assets with a fair value of $1 million and trading liabilities with a fair value of $2 million. Net trading gains and (losses) related to MSR hedging for the three-month periods ended March 31, 2017 and 2016, were $(1) million and $12 million, respectively. These amounts are included in mortgage banking income in the Unaudited Condensed Consolidated Statements of Income.

Derivatives used in trading activities

Various derivative financial instruments are offered to enable customers to meet their financing and investing objectives and for their risk management purposes. Derivative financial instruments used in trading activities consisted of commodity, interest rate, and foreign exchange contracts. The derivative contracts grant the option holder the right to buy or sell an underlying financial instrument for a predetermined price before the contract expires. Huntington may enter into offsetting third-party contracts with approved, reputable counterparties with substantially matching terms and currencies in order to economically hedge significant exposure related to derivatives used in trading activities.

The interest rate risk of customer derivatives is mitigated by entering into similar derivatives having offsetting terms with other counterparties. The credit risk to these customers is evaluated and included in the calculation of fair value. Foreign currency derivatives help the customer hedge risk and reduce exposure to fluctuations in exchange rates. Transactions are primarily in liquid currencies with Canadian dollars and Euros comprising a majority of all transactions.

The net fair values of these derivative financial instruments, for which the gross amounts are included in accrued income and other assets or accrued expenses and other liabilities at March 31, 2017 and December 31, 2016, were $81 million and $80 million, respectively. The total notional values of derivative financial instruments used by Huntington on behalf of customers, including offsetting derivatives, were $21.0 billion and $20.6 billion at March 31, 2017 and December 31, 2016, respectively. Huntington’s credit risks from interest rate swaps used for trading purposes were $171 million and $196 million at the same dates, respectively.

Share Swap Economic Hedge

Huntington acquires and holds shares of Huntington common stock in a Rabbi Trust for the Executive Deferred Compensation Plan. Huntington common stock held in the Rabbi Trust is recorded at cost and the corresponding deferred compensation liability is recorded at fair value using Huntington's share price as a significant input.

During the second quarter of 2016, Huntington entered into an economic hedge with a $20 million notional amount to hedge deferred compensation expense related to the Executive Deferred Compensation Plan. The economic hedge is recorded at fair value within other assets or liabilities. Changes in the fair value are recorded directly through other noninterest expense in the Unaudited Condensed Consolidated Statements of Income. At March 31, 2017, the fair value of the share swap was $10 million.

Risk Participation Agreements

Huntington periodically enters into risk participation agreements in order to manage credit risk of its derivative positions. These agreements transfer counterparty credit risk related to interest rate swaps to and from other financial institutions. Huntington can mitigate exposure to certain counterparties or take on exposure to generate additional income. Huntington’s notional exposure for interest rate swaps originated by other financial institutions was $596 million and $582 million at March 31, 2017 and December 31, 2016, respectively. Huntington will make payments under these agreements if a customer defaults on its obligation to perform under the terms of the underlying interest rate derivative contract. The amount Huntington would have to pay if all counterparties defaulted on their swap contracts is the fair value of these risk participations, which was a positive value (receivable) of $4 million and $3 million at March 31, 2017 and December 31, 2016, respectively. These contracts mature between 2017 and 2043 and are deemed investment grade.

Financial assets and liabilities that are offset in the Unaudited Condensed Consolidated Balance Sheets

Huntington records derivatives at fair value as further described in Note 11. Huntington records these derivatives net of any master netting arrangement in the Unaudited Condensed Consolidated Balance Sheets. Collateral agreements are regularly entered into as part of the underlying derivative agreements with Huntington’s counterparties to mitigate counterparty credit risk.

All derivatives are carried on the Unaudited Condensed Consolidated Balance Sheets at fair value. Derivative balances are presented on a net basis taking into consideration the effects of legally enforceable master netting agreements. Cash collateral exchanged with counterparties is also netted against the applicable derivative fair values. Huntington enters into derivative transactions with two primary groups: broker-dealers and banks, and Huntington’s customers. Different methods are utilized for managing counterparty credit exposure and credit risk for each of these groups.

Huntington enters into transactions with broker-dealers and banks for various risk management purposes. These types of transactions generally are high dollar volume. Huntington enters into bilateral collateral and master netting agreements with these counterparties, and routinely exchange cash and high quality securities collateral with these counterparties. Huntington enters into transactions with customers to meet their financing, investing, payment and risk management needs. These types of transactions generally are low dollar volume. Huntington generally enters into master netting agreements with customer counterparties, however collateral is generally not exchanged with customer counterparties.

At March 31, 2017 and December 31, 2016, aggregate credit risk associated with these derivatives, net of collateral that has been pledged by the counterparty, was $27 million and $26 million, respectively. The credit risk associated with interest rate swaps is calculated after considering master netting agreements with broker-dealers and banks.

At March 31, 2017, Huntington pledged $140 million of investment securities and cash collateral to counterparties, while other counterparties pledged $78 million of investment securities and cash collateral to Huntington to satisfy collateral netting agreements. In the event of credit downgrades, Huntington would not be required to provide additional collateral.

The following tables present the gross amounts of these assets and liabilities with any offsets to arrive at the net amounts recognized in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

Offsetting of Financial Assets and Derivative Assets

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of assets presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
March 31, 2017	Derivatives	$	352,023	$	(173,603	)	$	178,420	$	(20,393	)	$	(11,120	)	$	146,907
December 31, 2016	Derivatives	420,159		(181,940		)	238,219		(34,328		)	(5,428		)	198,463

Offsetting of Financial Liabilities and Derivative Liabilities

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of liabilities presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
March 31, 2017	Derivatives	$	329,744	$	(246,192	)	$	83,552	$	—		$	(21,427	)	$	62,125
December 31, 2016	Derivatives	370,647		(272,361		)	98,286		(7,550		)	(23,943		)	66,793

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VIEs

3 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

VIEs

VIEs

Consolidated VIEs

Consolidated VIEs at March 31, 2017, consisted of certain loan and lease securitization trusts. Huntington has determined the trusts are VIEs. Huntington has concluded that it is the primary beneficiary of these trusts because it has the power to direct the activities of the entity that most significantly affect the entity’s economic performance and it has either the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the VIE.

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

	March 31, 2017
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,565	$	—	$	1,565
Net loans and leases	55,358		—		55,358
Accrued income and other assets	—		275		275
Total assets	$	56,923	$	275	$	57,198
Liabilities:
Other long-term debt	$	45,906	$	—	$	45,906
Accrued interest and other liabilities	—		275		275
Total liabilities	45,906		275		46,181
Equity:
Beneficial Interest owned by third party	11,017		—		11,017
Total liabilities and equity	$	56,923	$	275	$	57,198

	December 31, 2016
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,564	$	—	$	1,564
Net loans and leases	69,825		—		69,825
Accrued income and other assets	—		281		281
Total assets	$	71,389	$	281	$	71,670
Liabilities:
Other long-term debt	$	57,494	$	—	$	57,494
Accrued interest and other liabilities	—		281		281
Total liabilities	57,494		281		57,775
Equity:
Beneficial Interest owned by third party	13,895		—		13,895
Total liabilities and equity	$	71,389	$	281	$	71,670

The loans and leases were designated to repay the securitized notes. Huntington services the loans and leases and uses the proceeds from principal and interest payments to pay the securitized notes during the amortization period. Huntington has not provided financial or other support that was not previously contractually required.

Unconsolidated VIEs

The following tables provide a summary of the assets and liabilities included in Huntington’s Unaudited Condensed Consolidated Financial Statements, as well as the maximum exposure to losses, associated with its interests related to unconsolidated VIEs for which Huntington holds an interest, but is not the primary beneficiary, to the VIE at March 31, 2017, and December 31, 2016:

	March 31, 2017
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	12,435	$	—	$	12,435
2015-1 Automobile Trust	2,698		—		2,698
Trust Preferred Securities	13,919		252,560		—
Low Income Housing Tax Credit Partnerships	559,819		279,270		559,819
Other Investments	95,033		41,232		95,033
Total	$	683,904	$	573,062	$	669,985

	December 31, 2016
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	14,770	$	—	$	14,770
2015-1 Automobile Trust	2,227		—		2,227
Trust Preferred Securities	13,919		252,552		—
Low Income Housing Tax Credit Partnerships	576,880		292,721		576,880
Other Investments	79,195		42,316		79,195
Total	$	686,991	$	587,589	$	673,072

The following table provides a summary of automobile transfers to trusts in separate securitization transactions.

(dollar amounts in millions)	Year	Amount Transferred
2016-1 Automobile Trust	2016	$	1,500
2015-1 Automobile Trust	2015	750

The securitizations and the resulting sale of all underlying securities qualified for sale accounting. Huntington has concluded that it is not the primary beneficiary of these trusts because it has neither the obligation to absorb losses of the entities that could potentially be significant to the VIEs nor the right to receive benefits from the entities that could potentially be significant to the VIEs. Huntington is not required and does not currently intend to provide any additional financial support to the trusts. Investors and creditors only have recourse to the assets held by the trusts. The interest Huntington holds in the VIEs relates to servicing rights which are included within servicing rights of Huntington’s Unaudited Consolidated Balance Sheets. The maximum exposure to loss is equal to the carrying value of the servicing asset. See Note 6 for more information.

TRUST PREFERRED SECURITIES

Huntington has certain wholly-owned trusts whose assets, liabilities, equity, income, and expenses are not included within Huntington’s Unaudited Condensed Consolidated Financial Statements. These trusts have been formed for the sole purpose of issuing trust-preferred securities, from which the proceeds are then invested in Huntington junior subordinated debentures, which are reflected in Huntington’s Unaudited Condensed Consolidated Balance Sheets as subordinated notes. The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Unaudited Condensed Consolidated Financial Statements. A list of trust preferred securities outstanding at March 31, 2017 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.74	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.76		(3)	32,093		3,093
Sky Financial Capital Trust III	2.55		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.40		(4)	74,320		2,320
Camco Financial Trust	3.59		(5)	4,252		155
Total				$	252,560	$	13,919

(1) Represents the principal amount of debentures issued to each trust, including unamortized original issue discount.

(2) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.70%.

(3) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.625%.

(4) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.40%.

(5) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.33%.

Each issue of the junior subordinated debentures has an interest rate equal to the corresponding trust securities distribution rate. Huntington has the right to defer payment of interest on the debentures at any time, or from time-to-time for a period not exceeding five years provided that no extension period may extend beyond the stated maturity of the related debentures. During any such extension period, distributions to the trust securities will also be deferred and Huntington’s ability to pay dividends on its common stock will be restricted. Periodic cash payments and payments upon liquidation or redemption with respect to trust securities are guaranteed by Huntington to the extent of funds held by the trusts. The guarantee ranks subordinate and junior in right of payment to all indebtedness of the Company to the same extent as the junior subordinated debt. The guarantee does not place a limitation on the amount of additional indebtedness that may be incurred by Huntington.

LOW INCOME HOUSING TAX CREDIT PARTNERSHIPS

Huntington makes certain equity investments in various limited 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, to facilitate the sale of additional affordable housing product offerings, and to assist in achieving goals associated with the Community Reinvestment Act. The primary activities of the limited partnerships include the identification, development, and operation of multi family housing that is leased to qualifying residential tenants. Generally, these types of investments are funded through a combination of debt and equity.

Huntington uses the proportional amortization method to account for all qualified investments in these entities. These investments are included in accrued income and other assets. Investments that do not meet the requirements of the proportional amortization method are recognized using the equity method. Investment gains/losses related to these investments are included in noninterest-income in the Unaudited Condensed Consolidated Statements of Income.

The following table presents the balances of Huntington’s affordable housing tax credit investments and related unfunded commitments at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Affordable housing tax credit investments	$	870,421		$	877,237
Less: amortization	(310,602		)	(300,357		)
Net affordable housing tax credit investments	$	559,819		$	576,880
Unfunded commitments	$	279,270		$	292,721

The following table presents other information relating to Huntington’s affordable housing tax credit investments for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Tax credits and other tax benefits recognized	$	23,283	$	18,285
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	16,961		12,407
Equity method
Tax credit investment (gains) losses included in non-interest income	109		132

Huntington recognized immaterial impairment losses on tax credit investments during the three-month periods ended March 31, 2017 and 2016. The impairment losses recognized related to the fair value of the tax credit investments that were less than carrying value.

OTHER INVESTMENTS

Other investments determined to be VIE’s include investments in New Market Tax Credit Investments, Historic Tax Credit Investments, Small Business Investment Companies, Rural Business Investment Companies, certain equity method investments and other miscellaneous investments.

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COMMITMENTS AND CONTINGENT LIABILITIES

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENT LIABILITIES

COMMITMENTS AND CONTINGENT LIABILITIES

Commitments to extend credit

In the ordinary course of business, Huntington makes various commitments to extend credit that are not reflected in the Unaudited Condensed Consolidated Financial Statements. The contract amounts of these financial agreements at March 31, 2017 and December 31, 2016, were as follows:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Contract amount represents credit risk:
Commitments to extend credit
Commercial	$	15,030,796	$	15,190,056
Consumer	12,523,637		12,235,943
Commercial real estate	1,531,769		1,697,671
Standby letters-of-credit	560,718		637,182
Commercial letters-of-credit	5,160		4,610

Commitments to extend credit generally have fixed expiration dates, are variable-rate, and contain clauses that permit Huntington to terminate or otherwise renegotiate the contracts in the event of a significant deterioration in the customer’s credit quality. These arrangements normally require the payment of a fee by the customer, the pricing of which is based on prevailing market conditions, credit quality, probability of funding, and other relevant factors. Since many of these commitments are expected to expire without being drawn upon, the contract amounts are not necessarily indicative of future cash requirements. The interest rate risk arising from these financial instruments is insignificant as a result of their predominantly short-term, variable-rate nature.

Standby letters-of-credit are conditional commitments issued to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. Most of these arrangements mature within two years. The carrying amount of deferred revenue associated with these guarantees was $7 million and $8 million at March 31, 2017 and December 31, 2016, respectively.

Commercial letters-of-credit represent short-term, self-liquidating instruments that facilitate customer trade transactions and generally have maturities of no longer than 90 days. The goods or cargo being traded normally secures these instruments.

Commitments to sell loans

Activity related to our mortgage origination activity supports the hedging of the mortgage pricing commitments to customers and the secondary sale to third parties. At March 31, 2017 and December 31, 2016, Huntington had commitments to sell residential real estate loans of $855 million and $819 million, respectively. These contracts mature in less than one year.

Litigation

The nature of Huntington’s business ordinarily results in a certain amount of pending as well as threatened claims, litigation, investigations, regulatory and legal and administrative cases, matters and proceedings, all of which are considered incidental to the normal conduct of business. When the Company determines it has meritorious defenses to the claims asserted, it vigorously defends itself. The Company considers settlement of cases when, in Management’s judgment, it is in the best interests of both the Company and its shareholders to do so.

On at least a quarterly basis, Huntington assesses its liabilities and contingencies in connection with threatened and outstanding legal cases, matters and proceedings, utilizing the latest information available. For cases, matters and proceedings where it is both probable the Company will incur a loss and the amount can be reasonably estimated, Huntington establishes an accrual for the loss. Once established, the accrual is adjusted as appropriate to reflect any relevant developments. For cases, matters or proceedings where a loss is not probable or the amount of the loss cannot be estimated, no accrual is established.

In certain cases, matters and proceedings, exposure to loss exists in excess of the accrual to the extent such loss is reasonably possible, but not probable. Management believes an estimate of the aggregate range of reasonably possible losses, in excess of amounts accrued, for current legal proceedings is up to $70 million at March 31, 2017. For certain other cases, and matters, Management cannot reasonably estimate the possible loss at this time. Any estimate involves significant judgment, given the varying stages of the proceedings (including the fact that many of them are currently in preliminary stages), the existence of multiple defendants in several of the current proceedings whose share of liability has yet to be determined, the numerous unresolved issues in many of the proceedings, and the inherent uncertainty of the various potential outcomes of such proceedings. Accordingly, Management’s estimate will change from time-to-time, and actual losses may be more or less than the current estimate. $0

While the final outcome of legal cases, matters, and proceedings is inherently uncertain, based on information currently available, advice of counsel, and available insurance coverage, Management believes that the amount it has already accrued is adequate and any incremental liability arising from the Company’s legal cases, matters, or proceedings will not have a material negative adverse effect on the Company’s consolidated financial position as a whole. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these cases, matters, and proceedings, if unfavorable, may be material to the Company’s consolidated financial position in a particular period.

Meoli v. The Huntington National Bank (Cyberco Litigation). The Bank has been named a defendant in a lawsuit arising from the Banks’s commercial lending, depository, and equipment leasing relationships with Cyberco Holdings, Inc. (Cyberco), based in Grand Rapids, Michigan. In November 2004, an equipment leasing fraud was uncovered, whereby Cyberco sought financing from equipment lessors and financial institutions, including Huntington, allegedly to purchase computer equipment from Teleservices Group, Inc. (Teleservices). Cyberco created fraudulent documentation to close the financing transactions when, in fact, no computer equipment was ever purchased or leased from Teleservices, which later proved to be a shell corporation. Bankruptcy proceedings for both Cyberco and Teleservices later ensued.

On September 28, 2015, adopting the bankruptcy court's recommendation, the U.S. District Court for the Western District of Michigan entered a judgment against Huntington in the amount of $72 million plus costs and pre- and post-judgment interest. Huntington increased its legal reserve by approximately $38 million to fully accrue for the amount of the judgment in the third quarter of 2015 while appealing the decision to the U.S. Sixth Circuit Court of Appeals. On February 8, 2017, the appellate court reversed the district court decision in part and remanded the case to the district court for further proceedings. Consistent with its reading of the appellate court opinion, Huntington decreased its legal reserve by approximately $42 million in the fourth quarter of 2016.

Powell v. Huntington National Bank.  Huntington is a defendant in a class action filed on October 15, 2013 alleging Huntington charged late fees on mortgage loans in a method that violated West Virginia law and the loan documents. Plaintiffs seek statutory civil penalties, compensatory damages and attorney’s fees. Huntington filed a motion for summary judgment on the plaintiffs’ claims, which was granted by the U.S. District Court on December 28, 2016.  Plaintiffs have filed a notice of appeal to the U.S. Fourth Circuit Court of Appeals.

FirstMerit Overdraft Litigation. Commencing in December 2010, two separate lawsuits were filed in the Summit County Court of Common Pleas and the Lake County Court of Common Pleas against FirstMerit. The complaints were brought as class actions on behalf of Ohio residents who maintained a checking account at FirstMerit and who incurred one or more overdraft fees as a result of the alleged re-sequencing of debit transactions. The parties have reached a global settlement for approximately $9 million cash to a common fund plus an additional $7 million in debt forgiveness. Attorneys' fees will be paid from the fund, with any remaining funds going to charity. FirstMerit’s insurer has agreed to reimburse Huntington 49% of the approximately $9 million, which totals approximately $4.4 million. The court preliminarily approved the settlement on December 5, 2016 and the cash portion of the settlement was funded on December 12, 2016. The final approval hearing is scheduled for June 2, 2017.

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SEGMENT REPORTING

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

SEGMENT REPORTING

SEGMENT REPORTING

Our business segments are based on our internally-aligned segment leadership structure, which is how we monitor results and assess performance. We have five major business segments: Consumer and Business Banking, Commercial Banking, Commercial Real Estate and Vehicle Finance(CREVF), Regional Banking and The Huntington Private Client Group(RBHPCG), and Home Lending. The Treasury / Other function includes our technology and operations, other unallocated assets, liabilities, revenue, and expense.

Business segment results are determined based upon our management reporting system, which assigns balance sheet and income statement items to each of the business segments. The process is designed around our organizational and management structure and, accordingly, the results derived are not necessarily comparable with similar information published by other financial institutions. Additionally, because of the interrelationships of the various segments, the information presented is not indicative of how the segments would perform if they operated as independent entities.

Revenue is recorded in the business segment responsible for the related product or service. Fee sharing is recorded to allocate portions of such revenue to other business segments involved in selling to, or providing service to customers. Results of operations for the business segments reflect these fee sharing allocations.

The management accounting process that develops the business segment reporting utilizes various estimates and allocation methodologies to measure the performance of the business segments. Expenses are allocated to business segments using a two-phase approach. The first phase consists of measuring and assigning unit costs (activity-based costs) to activities related to product origination and servicing. These activity-based costs are then extended, based on volumes, with the resulting amount allocated to business segments that own the related products. The second phase consists of the allocation of overhead costs to all five business segments from Treasury / Other. We utilize a full-allocation methodology, where all Treasury / Other expenses, except reported Significant Items, and a small amount of other residual unallocated expenses, are allocated to the five business segments.

The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike financial accounting, are not based on authoritative guidance similar to GAAP. As a result, reported segment results are not necessarily comparable with similar information reported by other financial institutions. Furthermore, changes in management structure or allocation methodologies and procedures result in changes in reported segment
financial data. Accordingly, certain amounts have been reclassified to conform to the current period presentation.

We use an active and centralized Funds Transfer Pricing (FTP) methodology to attribute appropriate income to the business segments. The intent of the FTP methodology is to transfer interest rate risk from the business segments by providing matched duration funding of assets and liabilities. The result is to centralize the financial impact, management, and reporting of interest rate risk in the Treasury / Other function where it can be centrally monitored and managed. The Treasury / Other function charges (credits) an internal cost of funds for assets held in (or pays for funding provided by) each business segment. The FTP rate is based on prevailing market interest rates for comparable duration assets (or liabilities).

We recently announced a reorganization among our executive leadership team, which will become effective during the 2017 second quarter. As a result, management is currently evaluating the business segment structure which may impact how we monitor future results and assess performance.

Consumer and Business Banking - The Consumer and Business Banking segment provides a wide array of financial products and services to consumer and small business customers including but not limited to checking accounts, savings accounts, money market accounts, certificates of deposit, consumer loans, credit cards, and small business loans. Other financial services available to consumer and small business customers include mortgages, insurance, interest rate risk protection, foreign exchange, and treasury management. Business Banking is defined as serving companies with revenues up to $20 million and consists of approximately 254,000 businesses.

Commercial Banking - Through a relationship banking model, this segment provides a wide array of products and services to the middle market, large corporate, and government public sector customers located primarily within our geographic footprint. The segment is divided into seven business units: middle market, large corporate, specialty banking, asset finance, capital markets, treasury management, and insurance.

Commercial Real Estate and Vehicle Finance - This segment provides lending and other banking products and services to customers outside of our traditional retail and commercial banking segments. Our products and services include providing financing for the purchase of automobiles, light-duty trucks, recreational vehicles and marine craft at franchised dealerships, financing the acquisition of new and used vehicle inventory of franchised automotive dealerships, and financing for land, buildings, and other commercial real estate owned or constructed by real estate developers, automobile dealerships, or other customers with real estate project financing needs. Products and services are delivered through highly specialized relationship-focused bankers and product partners.

Regional Banking and The Huntington Private Client Group - The core business of The Huntington Private Client Group is The Huntington Private Bank, which consists of Private Banking, Wealth & Investment Management, and Retirement plan services. The Huntington Private Bank provides high net-worth customers with deposit, lending (including specialized lending options), and banking services. The Huntington Private Bank also delivers wealth management and legacy planning through investment and portfolio management, fiduciary administration, and trust services. This group also provides retirement plan services to corporate businesses. The Huntington Private Client Group also provides corporate trust services and institutional and mutual fund custody services.

Home Lending - Home Lending originates and services consumer loans and mortgages for customers who are generally located in our primary banking markets. Consumer and mortgage lending products are primarily distributed through the Consumer and Business Banking and Regional Banking and The Huntington Private Client Group segments, as well as through commissioned loan originators. Home Lending earns interest on portfolio loans held-for-sale, earns fee income from the origination and servicing of mortgage loans, and recognizes gains or losses from the sale of mortgage loans. Home Lending supports the origination and servicing of mortgage loans across all segments.

Listed below is certain operating basis financial information reconciled to Huntington’s March 31, 2017, December 31, 2016, and March 31, 2016, reported results by business segment:

	Three Months Ended March 31,
Income Statements	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
(dollar amounts in thousands)
2017
Net interest income	$	393,496	$	174,563	$	139,333		$	46,649		$	15,215		$	(39,281	)	$	729,975
Provision for credit losses	31,294		22,137		9,549			2,771			1,887			—			67,638
Noninterest income	146,790		69,487		11,209			36,170			23,981			24,826			312,463
Noninterest expense	374,083		114,970		50,359			52,162			34,655			81,193			707,422
Income taxes	47,218		37,430		31,722			9,760			929			(67,775		)	59,284
Net income	$	87,691	$	69,513	$	58,912		$	18,126		$	1,725		$	(27,873	)	$	208,094
2016
Net interest income	$	264,529	$	105,350	$	95,597		$	34,923		$	12,985		$	(10,318	)	$	503,066
Provision (reduction in allowance) for credit losses	12,177		35,054		(16,649		)	(725		)	(2,274		)	(1		)	27,582
Noninterest income	120,257		58,916		7,311			24,717			11,503			19,163			241,867
Noninterest expense	280,121		92,995		40,206			40,503			24,593			12,662			491,080
Income taxes	32,371		12,676		27,773			6,952			759			(25,574		)	54,957
Net income	$	60,117	$	23,541	$	51,578		$	12,910		$	1,410		$	21,758		$	171,314

	Assets at				Deposits at
(dollar amounts in thousands)	March 31, 2017		December 31, 2016		March 31, 2017		December 31, 2016
Consumer & Business Banking	$	21,747,257	$	21,831,681	$	45,802,879	$	44,724,252
Commercial Banking	24,233,720		24,236,490		19,041,629		18,053,208
CREVF	23,953,670		23,576,832		1,890,433		1,893,072
RBHPCG	5,280,791		5,213,530		5,981,930		6,214,250
Home Lending	3,524,718		3,502,069		349,765		631,494
Treasury / Other	21,305,350		21,353,495		4,355,874		4,091,441
Total	$	100,045,506	$	99,714,097	$	77,422,510	$	75,607,717

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ACCOUNTING STANDARDS UPDATE (Policies)

3 Months Ended

Mar. 31, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

ACCOUNTING STANDARDS UPDATE

ACCOUNTING STANDARDS UPDATE

ASU 2014-09—Revenue from Contracts with Customers (Topic 606): The amendments in ASU 2014-09 supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. The general principle of the amendments require an entity to recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance sets forth a five step approach for revenue recognition. The amendments are effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Management intends to adopt the new guidance on January 1, 2018 using the modified retrospective approach and is well into its outlined implementation plan. In this regard, management has completed a preliminary analysis that includes (a) identification of all revenue streams included in the financial statements; (b) determination of scope exclusions to identify ‘in-scope’ revenue streams; (c) determination of size, timing, and amount of revenue recognition for in-scope items; (d) determination of sample size of contracts for further analysis; and (e) completion of limited analysis on selected contracts to evaluate the potential impact of the new guidance. The key revenue streams identified include service charges, credit card and payment processing fees, trust services fees, insurance income, brokerage services, and mortgage banking income. The new guidance is not expected to have a significant impact on Huntington’s Unaudited Consolidated Financial Statements.

ASU 2016-01 - Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this Update make targeted improvements to GAAP including, but not limited to, requiring an entity to measure its equity investments with changes in the fair value recognized in the income statement; requiring an entity to present separately in OCI the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments (i.e., FVO liability); requiring public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; assessing deferred tax assets related to a net unrealized loss on AFS securities in combination with the entity’s other deferred tax assets; and eliminating some of the disclosures required by the existing GAAP while requiring entities to present and disclose some additional information. The new guidance is effective for the fiscal period beginning after December 15, 2017, including interim periods within those fiscal years. An entity should apply the amendments as a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-02 - Leases. This Update sets forth a new lease accounting model for lessors and lessees. For lessees, virtually all leases will be required to be recognized on the balance sheet by recording a right-of-use asset and lease liability. Subsequent accounting for leases varies depending on whether the lease is an operating lease or a finance lease. The accounting applied by a lessor is largely unchanged from that applied under the existing guidance. The ASU requires additional qualitative and quantitative disclosures with the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Update is effective for the fiscal period beginning after December 15, 2018, with early application permitted. Management is currently assessing the impact of the new guidance on Huntington's Unaudited Consolidated Financial Statements. Huntington expects to recognize a right-of-use asset and a lease liability for its operating lease commitments.

ASU 2016-05 - Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. This Update provides accounting clarification for changes in the counterparty to a derivative instrument that has been designated as a qualified hedging instrument. Specifically, a change in the derivative counterparty does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-06 - Contingent Put and Call Options in Debt Instruments. This Update clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt instruments. An entity performing the assessment set forth in this Update will be required to assess embedded call (put) options solely in accordance with the four-step decision sequence. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-07 - Simplifying the Transition to the Equity Method of Accounting. This Update eliminates the requirement for the retrospective use of the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence of an investor. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for the equity method accounting. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-13 - Financial Instruments - Credit Losses. The amendments in this Update eliminate the probable recognition threshold for credit losses on financial assets measured at amortized cost. The Update requires those financial assets to be presented at the net amount expected to be collected (i.e., net of expected credit losses). The measurement of expected credit losses should be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The Update is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018. The amendments should be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. Management currently intends to adopt the guidance on January 1, 2020 and is assessing the impact of this Update on Huntington's Unaudited Consolidated Financial Statements. Management has formed a working group comprised of teams from different disciplines including credit and finance. The working group is currently evaluating the requirements of the new standard and the impact it will have on our processes. The early stages of this evaluation include a review of existing credit models to identify areas where existing credit models used to comply with other regulatory requirements may be leveraged and areas where new impairment models may be required.

ASU 2016-15 - Classification of Certain Cash Receipts and Cash Payments. The amendments in this Update add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows. Current guidance lacks consistent principles for evaluating the classification of cash payments and receipts in the statement of cash flows. This has led to diversity in practice and, in certain circumstances, financial statement restatements. Therefore, the FASB issued the ASU with the intent of reducing diversity in practice with respect to several types of cash flows. The amendments in this Update are effective using a retrospective transition approach for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2016-17 - Consolidation - Interests Held Through Related Parties that are Under Common Control. The Update amends the guidance included in ASU 2015-02, Consolidation: Amendments to Consolidation Analysis adopted by Huntington in 2016. The Update makes a narrow amendment and requires that a single decision maker should consider indirect economic interests in the entity held through related parties that are under common control on a proportionate basis when determining whether it is the primary beneficiary of that VIE. Prior to this amendment, indirect interests held through related parties that are under common control were to be considered equivalent of single decision maker’s direct interests in their entirety. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-04 - Simplifying the Test for Goodwill Impairment. The Update simplifies the goodwill impairment test. Under the new guidance, Step 2 of the goodwill impairment process that requires an entity to determine the implied fair value of its goodwill by assigning fair value to all its assets and liabilities, is eliminated. Instead, the entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The new guidance is effective for annual and interim goodwill tests performed in fiscal years beginning after December 15, 2019. Early adoption is permitted. The amendment is not expected to have a material impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-07 - Improving the Presentation of Net Periodic Pension Cost and Periodic Postretirement Benefit Cost. The amendments in this Update require that an employer report the service cost component of the pension cost and postretirement benefit cost in the same line items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of the net benefit cost should be presented in the income statement separately from the service cost component. The amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. This Update is not expected to have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

ASU 2017-08 - Premium Amortization on Purchased Callable Debt Securities. The Update amends the guidance related to amortization for certain callable debt securities held at a premium. The new guidance requires the premium to be amortized to the earliest call date. The guidance does not require an accounting change for securities purchased at discount. The Update was adopted in the current reporting period and did not have a significant impact on Huntington's Unaudited Consolidated Financial Statements.

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES (Tables)

3 Months Ended

Mar. 31, 2017

Receivables [Abstract]

Loan and Lease Portfolio

The following table provides a detailed listing of Huntington’s loan and lease portfolio at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Loans and leases:
Commercial and industrial	$	28,175,924		$	28,058,712
Commercial real estate	7,093,118			7,300,901
Automobile	11,155,094			10,968,782
Home equity	9,974,294			10,105,774
Residential mortgage	7,829,137			7,724,961
RV and marine finance	1,934,983			1,846,447
Other consumer	935,719			956,419
Loans and leases	67,098,269			66,961,996
Allowance for loan and lease losses	(672,580		)	(638,413		)
Net loans and leases	$	66,425,689		$	66,323,583

Loans Acquired with deteriorated credit quality during period

s

Loans acquired with deteriorated credit quality

The following table presents a rollforward of the accretable yield for purchased credit impaired loans for the three-month period ended March 31, 2017: and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017
FirstMerit
Balance, beginning of period	$	36,669
Accretion	(4,702		)
Reclassification (to) from nonaccretable difference	5,405
Balance, end of period	$	37,372

The following table reflects the ending and unpaid balances of the purchase credit impaired loans at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance		Ending Balance		Unpaid Balance
FirstMerit
Commercial and industrial	$	67,514	$	97,946	$	68,338	$	100,031
Commercial real estate	22,597		38,045		34,042		56,320
Total	$	90,111	$	135,991	$	102,380	$	156,351

Schedule of financing receivable, subject to loss share arrangements

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance		Ending Balance		Unpaid Balance
FirstMerit
Commercial and industrial	$	67,514	$	97,946	$	68,338	$	100,031
Commercial real estate	22,597		38,045		34,042		56,320
Total	$	90,111	$	135,991	$	102,380	$	156,351

Loan Purchases and Sales

NALs and Past Due Loans

The following table presents NALs by loan class at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Commercial and industrial	$	232,171	$	234,184
Commercial real estate	13,889		20,508
Automobile	4,881		5,766
Home equity	69,575		71,798
Residential mortgage	80,686		90,502
RV and marine finance	106		245
Other consumer	2		—
Total nonaccrual loans	$	401,310	$	423,003

Aging analysis of loans and leases

The following table presents an aging analysis of loans and leases, including past due loans, by loan class at March 31, 2017 and December 31, 2016: (1)

	March 31, 2017
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	$	77,998	$	11,428	$	77,392	$	166,818	$	27,941,592	$	67,514	$	—	$	28,175,924	$	15,054	(2)
Commercial real estate	38,046		460		26,281		64,787		7,005,734		22,597		—		7,093,118		14,499
Automobile	70,564		15,517		8,331		94,412		11,058,889		—		1,793		11,155,094		8,123

Home equity	43,532		18,464		58,631		120,627		9,850,680		—		2,987		9,974,294		15,453
Residential mortgage	91,831		38,144		112,207		242,182		7,495,211		—		91,744		7,829,137		69,244		(3)
RV and marine finance	10,101		3,064		2,202		15,367		1,918,199		—		1,417		1,934,983		2,200
Other consumer	9,234		3,766		3,369		16,369		918,949		—		401		935,719		3,370
Total loans and leases	$	341,306	$	90,843	$	288,413	$	720,562	$	66,189,254	$	90,111	$	98,342	$	67,098,269	$	127,943

	December 31, 2016
	Past Due												Loans Accounted for Under the Fair Value Option		Total Loans and Leases		90 or more days past due and accruing
(dollar amounts in thousands)	30-59 Days		60-89  Days		90 or  more days		Total		Current		Purchased Credit Impaired
Commercial and industrial	42,052		20,136		74,174		136,362		27,854,012		68,338		—		28,058,712		18,148		(2)
Commercial real estate	21,187		3,202		29,659		54,048		7,212,811		34,042		—		7,300,901		17,215
Automobile loans	76,283		17,188		10,442		103,913		10,862,715		—		2,154		10,968,782		10,182
Home equity	38,899		23,903		53,002		115,804		9,986,697		—		3,273		10,105,774		11,508
Residential mortgage	122,469		37,460		116,682		276,611		7,373,414		—		74,936		7,724,961		66,952		(3)
RV and marine finance	10,009		2,230		1,566		13,805		1,831,123		—		1,519		1,846,447		1,462
Other consumer	9,442		4,324		3,894		17,660		938,322		—		437		956,419		3,895
Total loans and leases	$	320,341	$	108,443	$	289,419	$	718,203	$	66,059,094	$	102,380	$	82,319	$	66,961,996	$	129,362

(1) NALs are included in this aging analysis based on the loan’s past due status.

(2) Amounts include Huntington Technology Finance administrative lease delinquencies.

ALLL and AULC activity by portfolio segment

The following table presents ALLL and AULC activity by portfolio segment for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2017:
ALLL balance, beginning of period	$	451,091		$	187,322		$	638,413
Loan charge-offs	(23,669		)	(47,046		)	(70,715		)
Recoveries of loans previously charged-off	17,815			13,462			31,277
Provision (reduction in allowance) for loan and lease losses	35,145			38,534			73,679
Allowance for loans sold or transferred to loans held for sale	(74		)	—			(74		)
ALLL balance, end of period	$	480,308		$	192,272		$	672,580
AULC balance, beginning of period	$	86,543		$	11,336		$	97,879
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,356			(8,397		)	(6,041		)
AULC balance, end of period	$	88,899		$	2,939		$	91,838
ACL balance, end of period	$	569,207		$	195,211		$	764,418

(dollar amounts in thousands)	Commercial			Consumer			Total
Three-month period ended March 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(28,949		)	(30,743		)	(59,692		)
Recoveries of loans previously charged-off	39,911			11,229			51,140
Provision for (reduction in allowance) loan and lease losses	12,726			11,612			24,338
Allowance for loans sold or transferred to loans held for sale	—			90			90
ALLL balance, end of period	$	422,441		$	191,278		$	613,719
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,424			820			3,244
AULC balance, end of period	$	65,872		$	9,453		$	75,325
ACL balance, end of period	$	488,313		$	200,731		$	689,044

Loan and lease balances by credit quality indicator

The following table presents each loan and lease class by credit quality indicator at March 31, 2017 and December 31, 2016:

	March 31, 2017
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,216,400	$	808,467	$	1,131,835	$	19,222	$	28,175,924
Commercial real estate	6,867,440		120,212		103,983		1,483		7,093,118
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,445,124	$	4,254,397	$	1,172,859	$	280,921	$	11,153,301
Home equity	6,131,710		2,924,593		631,268		283,736		9,971,307
Residential mortgage	4,643,664		2,406,782		611,675		75,272		7,737,393
RV and marine finance	1,179,561		699,701		16,202		38,102		1,933,566
Other consumer	333,683		440,599		142,515		18,521		935,318

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial
Commercial and industrial	$	26,211,885	$	810,287	$	1,028,819	$	7,721	$	28,058,712
Commercial real estate	7,042,304		96,975		159,098		2,524		7,300,901
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Consumer
Automobile	$	5,369,085	$	4,043,611	$	1,298,460	$	255,472	$	10,966,628
Home equity	6,280,328		2,891,330		637,560		293,283		10,102,501
Residential mortgage	4,662,777		2,285,121		615,067		87,060		7,650,025
RV and marine finance	1,064,143		644,039		72,995		63,751		1,844,928
Other consumer	346,867		455,959		133,243		19,913		955,982

(1) Excludes loans accounted for under the fair value option.

(2) Reflects most recent customer credit scores.

(3) Reflects deferred fees and costs, loans in process, loans to legal entities, etc.

Summarized data for impaired loans and the related ALLL by portfolio segment

The following tables present the balance of the ALLL attributable to loans by portfolio segment individually and collectively evaluated for impairment and the related loan and lease balance at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at March 31, 2017:
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	24,519	$	11,888	$	36,407
Attributable to loans collectively evaluated for impairment	455,789		180,384		636,173
Total ALLL balance	$	480,308	$	192,272	$	672,580
Loan and Lease Ending Balances at March 31, 2017: (1)
Portion of loan and lease ending balance:
Purchased credit-impaired loans	$	90,111	$	—	$	90,111
Individually evaluated for impairment	425,793		457,790		883,583
Collectively evaluated for impairment	34,753,138		31,273,095		66,026,233
Total loans and leases evaluated for impairment	$	35,269,042	$	31,730,885	$	66,999,927

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2016
Portion of ALLL balance:
Attributable to loans individually evaluated for impairment	$	10,525	$	11,021	$	21,546
Attributable to loans collectively evaluated for impairment	440,566		176,301		616,867
Total ALLL balance:	$	451,091	$	187,322	$	638,413
Loan and Lease Ending Balances at December 31, 2016 (1)
Portion of loan and lease ending balances:
Purchased credit-impaired loans	$	102,380	$	—	$	102,380
Individually evaluated for impairment	415,624		457,890		873,514
Collectively evaluated for impairment	34,841,609		31,062,174		65,903,783
Total loans and leases evaluated for impairment	$	35,359,613	$	31,520,064	$	66,879,677

(1) Excludes loans accounted for under the fair value option.

Detailed impaired loan information by class

The following tables present by class the ending, unpaid principal balance, and the related ALLL, along with the average balance and interest income recognized only for impaired loans and leases and purchased credit-impaired loans: (1), (2)

	March 31, 2017						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	250,789	$	290,673	$	—	$	275,409	$	4,500
Commercial real estate	86,621		117,745		—		85,829		2,000
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (3)	278,368		306,613		33,678		334,179		1,906
Commercial real estate (4)	41,416		49,444		2,810		69,094		467
Automobile	32,731		32,942		2,004		31,846		534
Home equity (6)	326,755		360,622		16,232		323,079		3,949
Residential mortgage (6) (7)	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57
Total
Commercial and industrial	529,157		597,286		33,678		609,588		6,406
Commercial real estate	128,037		167,189		2,810		154,923		2,467
Automobile	32,731		32,942		2,004		31,846		534
Home equity	326,755		360,622		16,232		323,079		3,949
Residential mortgage	349,527		383,685		14,217		338,640		3,110
RV and marine finance	687		710		26		343		11
Other consumer	4,245		4,245		248		4,071		57

	December 31, 2016						Three months ended March 31,
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (5)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	261,144	$	1,233
Commercial real estate	88,817		126,152		—		71,807		1,616
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		1,473		2
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		45		102
With an allowance recorded:
Commercial and industrial (3)	406,243		448,121		22,259		264,084		3,086
Commercial real estate (4)	97,238		107,512		3,434		79,857		758
Automobile	30,961		31,298		1,850		32,284		578
Home equity (6)	319,404		352,722		15,032		250,016		2,968
Residential mortgage (6) (7)	327,753		363,099		12,849		362,280		3,036
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,799		66
Total
Commercial and industrial	705,849		806,833		22,259		525,228		4,319
Commercial real estate	186,055		233,664		3,434		151,664		2,374
Automobile	30,961		31,298		1,850		32,284		578
Home equity	319,404		352,722		15,032		250,016		2,968
Residential mortgage	327,753		363,099		12,849		363,753		3,038
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,844		168

(1) These tables do not include loans fully charged-off.

(2) All automobile, RV and marine finance and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(3) At March 31, 2017 and December 31, 2016, commercial and industrial loans with an allowance recorded of $117 million and $293 million, respectively, were considered impaired due to their status as a TDR.

(4) At March 31, 2017 and December 31, 2016, commercial real estate loans with an allowance recorded of $24 million and $81 million, respectively, were considered impaired due to their status as a TDR.

(5) The differences between the ending balance and unpaid principal balance amounts represent partial charge-offs.

(6) Includes home equity and residential mortgages considered to be collateral dependent as well as home equity and mortgage loans considered impaired due to their status as a TDR.

(7) At March 31, 2017 and December 31, 2016, residential mortgage loans with an allowance recorded of $30 million and $29 million, respectively, were guaranteed by the U.S. government.

Detailed troubled debt restructuring information by class

The following table presents by class and by the reason for the modification, the number of contracts, post-modification outstanding balance, and the financial effects of the modification for the three-month periods ended March 31, 2017 an 2016:

	New Troubled Debt Restructurings During The Three-Month Period Ended (1)
	March 31, 2017						March 31, 2016
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)			Number of Contracts	Post-modification Outstanding Ending Balance		Financial effects of modification (2)
Commercial and industrial:
Interest rate reduction	1	$	19	$	6		1	$	17	$	(1	)
Amortization or maturity date change	236	112,425		(1,002		)	184	122,658		572
Other	3	160		(27		)	8	858		(4		)
Total Commercial and industrial	240	112,604		(1,023		)	193	123,533		567
Commercial real estate:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	24	31,263		(388		)	24	33,795		(559		)
Other	—	—		—			2	263		16
Total commercial real estate:	24	31,263		(388		)	26	34,058		(543		)
Automobile:
Interest rate reduction	14	178		5			4	42		2
Amortization or maturity date change	477	4,301		111			421	3,901		220
Chapter 7 bankruptcy	240	1,822		29			317	2,562		115
Other	—	—		—			—	—		—
Total Automobile	731	6,301		145			742	6,505		337
Home equity:
Interest rate reduction	8	562		7			20	1,384		67
Amortization or maturity date change	106	5,496		(674		)	229	11,890		(1,282		)
Chapter 7 bankruptcy	87	3,619		1,038			99	3,597		733
Other	58	3,729		(326		)	—	—		—
Total Home equity	259	13,406		45			348	16,871		(482		)
Residential mortgage:
Interest rate reduction	2	110		(9		)	5	657		(32		)
Amortization or maturity date change	99	11,071		(258		)	92	10,759		(577		)
Chapter 7 bankruptcy	24	2,691		(136		)	17	1,505		70
Other	16	1,920		14			—	—		—
Total Residential mortgage	141	15,792		(389		)	114	12,921		(539		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	14	476		12			—	—		—
Chapter 7 bankruptcy	15	210		4			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	29	686		16			—	—		—

Other consumer:
Interest rate reduction	1	78		2			—	—		—
Amortization or maturity date change	2	267		7			4	555		24
Chapter 7 bankruptcy	1	4		—			7	66		7
Other	—	—		—			—	—		—
Total Other consumer	4	349		9			11	621		31
Total new troubled debt restructurings	1,428	$	180,401	$	(1,585	)	1,434	$	194,509	$	(629	)

(1) TDRs may include multiple concessions and the disclosure classifications are based on the primary concession provided to the borrower.

(2) Amount represents the financial impact via provision for loan and lease losses as a result of the modification.

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AVAILABLE-FOR-SALE AND OTHER SECURITIES (Tables)

3 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Contractual maturities of investment securities

Listed below are the contractual maturities of available-for-sale and other securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
U.S. Treasury, Federal agency, and other agency securities:
U.S. Treasury:
1 year or less	$	6,379	$	6,383	$	4,978	$	4,988
After 1 year through 5 years	502		507		502		509
After 5 years through 10 years	—		—		—		—
After 10 years	—		—		—		—
Total U.S. Treasury	6,881		6,890		5,480		5,497
Federal agencies: mortgage-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	41,925		41,995		46,591		46,762
After 5 years through 10 years	273,555		274,738		173,941		176,404
After 10 years	11,099,533		10,905,134		10,630,929		10,450,176
Total Federal agencies: mortgage-backed securities	11,415,013		11,221,867		10,851,461		10,673,342
Other agencies:
1 year or less	4,354		4,417		4,302		4,367
After 1 year through 5 years	9,503		9,690		5,092		5,247
After 5 years through 10 years	75,673		75,736		63,618		63,928
After 10 years	—		—		—		—
Total other agencies	89,530		89,843		73,012		73,542

Total U.S. Treasury, Federal agency, and other agency securities	11,511,424		11,318,600		10,929,953		10,752,381
Municipal securities:
1 year or less	180,536		178,416		169,636		166,887
After 1 year through 5 years	951,261		953,776		933,893		933,903
After 5 years through 10 years	1,481,804		1,493,797		1,463,459		1,464,583
After 10 years	689,993		691,165		693,440		684,684
Total municipal securities	3,303,594		3,317,154		3,260,428		3,250,057
Asset-backed securities:
1 year or less	—		—		—		—
After 1 year through 5 years	88,216		88,681		80,700		80,560
After 5 years through 10 years	168,634		170,102		223,352		224,565
After 10 years	537,534		508,154		520,072		488,356
Total asset-backed securities	794,384		766,937		824,124		793,481
Corporate debt:
1 year or less	59,021		59,429		43,223		43,603
After 1 year through 5 years	64,529		66,027		78,430		80,196
After 5 years through 10 years	34,681		35,362		32,523		32,865
After 10 years	36,098		37,863		40,361		42,019
Total corporate debt	194,329		198,681		194,537		198,683
Other:
1 year or less	1,652		1,652		1,650		1,650
After 1 year through 5 years	2,300		2,275		2,302		2,283
After 5 years through 10 years	—		—		—		—
After 10 years	46		46		10		10
Nonmarketable equity securities	552,628		552,628		547,704		547,704
Mutual funds	14,331		14,331		15,286		15,286
Marketable equity securities	861		1,301		861		1,302
Total other	571,818		572,233		567,813		568,235
Total available-for-sale and other securities	$	16,375,549	$	16,173,605	$	15,776,855	$	15,562,837

Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income

The following tables provide amortized cost, fair value, and gross unrealized gains and losses recognized in OCI by investment category at March 31, 2017 and December 31, 2016:

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
U.S. Treasury	$	6,881	$	9	$	—		$	6,890
Federal agencies:
Mortgage-backed securities	11,415,013		10,882		(204,028		)	11,221,867
Other agencies	89,530		356		(43		)	89,843
Total U.S. Treasury, Federal agency securities	11,511,424		11,247		(204,071		)	11,318,600
Municipal securities	3,303,594		39,687		(26,127		)	3,317,154
Asset-backed securities	794,384		2,225		(29,672		)	766,937
Corporate debt	194,329		4,357		(5		)	198,681
Other securities	571,818		441		(26		)	572,233
Total available-for-sale and other securities	$	16,375,549	$	57,957	$	(259,901	)	$	16,173,605

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
U.S. Treasury	$	5,480	$	17	$	—		$	5,497
Federal agencies:
Mortgage-backed securities	10,851,461		12,548		(190,667		)	10,673,342
Other agencies	73,012		536		(6		)	73,542
Total U.S. Treasury, Federal agency securities	10,929,953		13,101		(190,673		)	10,752,381
Municipal securities	3,260,428		28,431		(38,802		)	3,250,057
Asset-backed securities	824,124		1,492		(32,135		)	793,481
Corporate debt	194,537		4,161		(15		)	198,683
Other securities	567,813		441		(19		)	568,235
Total available-for-sale and other securities	$	15,776,855	$	47,626	$	(261,644	)	$	15,562,837

Available for sale securities in an unrealized loss position table text block

The following tables provide detail on investment securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	9,846,004	$	(202,610	)	$	40,432	$	(1,418	)	$	9,886,436	$	(204,028	)
Other agencies	25,475		(43		)	—		—			25,475		(43		)
Total Federal agency securities	9,871,479		(202,653		)	40,432		(1,418		)	9,911,911		(204,071		)
Municipal securities	859,848		(19,825		)	257,829		(6,302		)	1,117,677		(26,127		)
Asset-backed securities	260,870		(2,268		)	201,436		(27,404		)	462,306		(29,672		)
Corporate debt	694		(5		)	200		—			894		(5		)
Other securities	785		(15		)	1,489		(11		)	2,274		(26		)
Total temporarily impaired securities	$	10,993,676	$	(224,766	)	$	501,386	$	(35,135	)	$	11,495,062	$	(259,901	)

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	8,908,470	$	(189,318	)	$	41,706	$	(1,349	)	$	8,950,176	$	(190,667	)
Other agencies	924		(6		)	—		—			924		(6		)
Total Federal agency securities	8,909,394		(189,324		)	41,706		(1,349		)	8,951,100		(190,673		)
Municipal securities	1,412,152		(29,175		)	272,292		(9,627		)	1,684,444		(38,802		)
Asset-backed securities	361,185		(3,043		)	178,924		(29,092		)	540,109		(32,135		)
Corporate debt	3,567		(15		)	200		—			3,767		(15		)
Other securities	790		(11		)	1,492		(8		)	2,282		(19		)
Total temporarily impaired securities	$	10,687,088	$	(221,568	)	$	494,614	$	(40,076	)	$	11,181,702	$	(261,644	)

Realized securities gains and losses

The following table is a summary of realized securities gains and losses for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Gross gains on sales of securities	$	545		$	—
Gross (losses) on sales of securities	(553		)	—
Net gain on sales of securities	$	(8	)	$	—

Trust Preferred Securities Data

The following table summarizes the relevant characteristics of the Company's CDO securities portfolio, which are included in asset-backed securities, at March 31, 2017. Each security is part of a pool of issuers and supports a more senior tranche of securities except for the MM Comm III securities which are the most senior class.

Collateralized Debt Obligation Securities

(dollar amounts in thousands)

Deal Name	Par Value		Amortized Cost		Fair Value		Unrealized Loss (2)			Lowest Credit Rating (3)	# of Issuers Currently Performing/ Remaining (4)	Actual Deferrals and Defaults as a % of Original Collateral	Expected Defaults as a % of Remaining Performing Collateral	Excess Subordination (5)
ICONS	$	18,594	$	18,594	$	15,416	$	(3,178	)	BB	19/21	7	13	55
MM Comm III	4,573		4,369		3,625		(744		)	BB+	5/8	5	6	39
Pre TSL IX (1)	5,000		3,955		3,285		(670		)	C	27/37	16	8	10
Pre TSL XI (1)	25,000		19,413		15,923		(3,490		)	C	43/53	14	8	14
Reg Diversified (1)	25,500		4,195		1,832		(2,363		)	D	20/36	33	8	—
Tropic III	31,000		31,000		19,411		(11,589		)	BB	27/36	16	7	42
Total at March 31, 2017	$	109,667	$	81,526	$	59,492	$	(22,034	)
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)

(1) Security was determined to have OTTI. As such, the amortized cost is net of recorded credit impairment.

(2) The majority of securities have been in a continuous loss position for 12 months or longer.

(3) For purposes of comparability, the lowest credit rating expressed is equivalent to Fitch ratings even where the lowest rating is based on another nationally recognized credit rating agency.

(4) Includes both banks and/or insurance companies.

(5) Excess subordination percentage represents the additional defaults in excess of both current and projected defaults that the CDO can absorb before the bond experiences credit impairment. Excess subordinated percentage is calculated by (a) determining what percentage of defaults a deal can experience before the bond has credit impairment, and (b) subtracting from this default breakage percentage both total current and expected future default percentages.

Schedule of other than temporary impairment

For the three-month periods ended March 31, 2017 and 2016, the following table summarizes by security type the total OTTI losses recognized in the Unaudited Condensed Consolidated Statements of Income for securities evaluated for impairment as described above.

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—	$	—
Municipal Securities	24		—
Total available-for-sale and other securities	$	24	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the three-month periods ended March 31, 2017 and 2016 as follows:

	Three Months Ended March 31,
(dollar amounts in thousands)	2017			2016
Balance, beginning of period	$	11,796		$	18,368
Reductions from sales	(4,558		)	—
Additional credit losses	24			—
Balance, end of period	$	7,262		$	18,368

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HELD-TO-MATURITY SECURITIES (Tables)

3 Months Ended

Mar. 31, 2017

Held-to-maturity Securities [Abstract]

Contractual maturities of held-to-maturity securities

Listed below are the contractual maturities of held-to-maturity securities at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Federal agencies: mortgage-backed securities:
1 year or less	$	—	$	—	$	—	$	—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	59,710		59,420		41,261		40,791
After 10 years	6,887,466		6,857,540		7,157,083		7,139,943
Total Federal agencies: mortgage-backed securities	6,947,176		6,916,960		7,198,344		7,180,734
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	382,617		383,290		398,341		399,452
After 10 years	197,714		195,990		204,083		201,180
Total other agencies	580,331		579,280		602,424		600,632
Total U.S. Government backed agencies	7,527,507		7,496,240		7,800,768		7,781,366
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,010		5,862		6,171		5,902
Total municipal securities	6,010		5,862		6,171		5,902
Total held-to-maturity securities	$	7,533,517	$	7,502,102	$	7,806,939	$	7,787,268

Amortized cost, gross unrealized gains and losses, and fair value by investment category

The following table provides amortized cost, gross unrealized gains and losses, and fair value by investment category at March 31, 2017 and December 31, 2016:

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	6,947,176	$	11,534	$	(41,750	)	$	6,916,960
Other agencies	580,331		1,886		(2,937		)	579,280
Total U.S. Government backed agencies	7,527,507		13,420		(44,687		)	7,496,240
Municipal securities	6,010		—		(148		)	5,862
Total held-to-maturity securities	$	7,533,517	$	13,420	$	(44,835	)	$	7,502,102

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	7,198,344	$	20,883	$	(38,493	)	$	7,180,734
Other agencies	602,424		1,690		(3,482		)	600,632
Total U.S. Government backed agencies	7,800,768		22,573		(41,975		)	7,781,366
Municipal securities	6,171		—		(269		)	5,902
Total held-to-maturity securities	$	7,806,939	$	22,573	$	(42,244	)	$	7,787,268

Investment securities in an unrealized loss position

The following tables provide detail on held-to-maturity securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position, at March 31, 2017 and December 31, 2016:

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2017
Federal agencies:
Mortgage-backed securities	$	4,852,958	$	(35,507	)	$	169,422	$	(6,243	)	$	5,022,380	$	(41,750	)
Other agencies	412,793		(2,937		)	—		—			412,793		(2,937		)
Total U.S. Government backed securities	5,265,751		(38,444		)	169,422		(6,243		)	5,435,173		(44,687		)
Municipal securities	5,862		(148		)	—		—			5,862		(148		)
Total temporarily impaired securities	$	5,271,613	$	(38,592	)	$	169,422	$	(6,243	)	$	5,441,035	$	(44,835	)

	Less than 12 Months					Over 12 Months					Total
(dollar amounts in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
December 31, 2016
Federal agencies:
Mortgage-backed securities	$	2,855,360	$	(31,470	)	$	186,226	$	(7,023	)	$	3,041,586	$	(38,493	)
Other agencies	413,207		(3,482		)	—		—			413,207		(3,482		)
Total U.S. Government backed securities	3,268,567		(34,952		)	186,226		(7,023		)	3,454,793		(41,975		)
Municipal securities	5,902		(269		)	—		—			5,902		(269		)
Total temporarily impaired securities	$	3,274,469	$	(35,221	)	$	186,226	$	(7,023	)	$	3,460,695	$	(42,244	)

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LOAN SALES AND SECURITIZATIONS (Tables)

3 Months Ended

Mar. 31, 2017

Transfers and Servicing [Abstract]

Summarizes activity relating to loans securitized sold with servicing retained

The following table summarizes activity relating to SBA loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
SBA loans sold with servicing retained	$	77,672	$	45,889
Pretax gains resulting from above loan sales (1)	5,818		3,521

(1) Recorded in gain on sale of loans.

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Residential mortgage loans sold with servicing retained	$	845,415	$	632,466
Pretax gains resulting from above loan sales (1)	22,190		14,113

(1) Recorded in mortgage banking income.

Summarizes activity relating to loans sold with servicing retained using the fair value method

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the three-month periods ended March 31, 2017 and 2016:

Fair Value Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Fair value, beginning of period	$	13,747		$	17,585
Change in fair value during the period due to:
Time decay (1)	(231		)	(273		)
Payoffs (2)	(364		)	(504		)
Changes in valuation inputs or assumptions (3)	155			(1,989		)
Fair value, end of period:	$	13,307		$	14,819
Weighted-average life (years)	5.6			5.2

(1) Represents decrease in value due to passage of time, including the impact from both regularly scheduled loan principal payments and partial loan paydowns.

(2) Represents decrease in value associated with loans that paid off during the period.

(3) Represents change in value resulting primarily from market-driven changes in interest rates and prepayment speeds.

Summarizes activity relating to loans sold with servicing retained using the amortization method

Amortization Method:	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	172,466		$	143,133
New servicing assets created	9,635			6,109
Impairment (charge) / recovery	1,800			(16,340		)
Amortization and other	(6,089		)	(5,627		)
Carrying value, end of period	$	177,812		$	127,275
Fair value, end of period	$	178,581		$	127,516
Weighted-average life (years)	7.1			6.5

Changes in the carrying value of automobile loan servicing rights for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	18,285		$	8,771
New servicing assets created	—			—
Amortization and other	(3,126		)	(1,742		)
Carrying value, end of period	$	15,159		$	7,029
Fair value, end of period	$	15,278		$	7,250
Weighted-average life (years)	4.0			3.3

The following tables summarize the changes in the carrying value of the servicing asset for the three-month periods ended March 31, 2017 and 2016, and the fair value at the end of each period were as follows:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Carrying value, beginning of period	$	21,080		$	19,747
New servicing assets created	1,475			1,511
Amortization and other	(1,156		)	(1,733		)
Carrying value, end of period	$	21,399		$	19,525
Fair value, end of period	$	25,857		$	23,048
Weighted-average life (years)	3.3			3.3

Summary of key assumptions and the sensitivity of the servicing rights value to changes in the assumptions

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	19.95	%	$	(877	)	$	(1,695	)	19.98	%	$	(1,047	)	$	(2,026	)
Spread over forward interest rate swap rates	500 bps		(22		)	(45		)	500 bps		(26		)	(53		)

For MSRs under the fair value method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	11.90	%	$	(522	)	$	(1,007	)	10.90	%	$	(501	)	$	(970	)
Spread over forward interest rate swap rates	839 bps		(411		)	(798		)	536 bps		(454		)	(879		)

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value at March 31, 2017 and December 31, 2016, to changes in these assumptions follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	8.10	%	$	(4,756	)	$	(9,242	)	7.80	%	$	(4,510	)	$	(8,763	)
Spread over forward interest rate swap rates	1,064 bps		(5,518		)	(10,692		)	1,173 bps		(5,259		)	(10,195		)

A summary of key assumptions and the sensitivity of the SBA loan servicing rights value to changes in these assumptions at March 31, 2017 and December 31, 2016 follows:

	March 31, 2017								December 31, 2016
			Decline in fair value due to								Decline in fair value due to
(dollar amounts in thousands)	Actual		10% adverse change			20% adverse change			Actual		10% adverse change			20% adverse change
Constant prepayment rate (annualized)	7.40	%	$	(346	)	$	(687	)	7.40	%	$	(324	)	$	(644	)
Discount rate	15.00		(696		)	(1,363		)	15.00		(1,270		)	(1,870		)

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OTHER COMPREHENSIVE INCOME (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Components of other comprehensive income

The components of other comprehensive income for the three-month periods ended March 31, 2017 and 2016, were as follows:

	Three Months Ended March 31, 2017
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	810		$	(286	)	$	524
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	8,996			(2,795		)	6,201
Less: Reclassification adjustment for net losses (gains) included in net income	5,874			(2,077		)	3,797
Net change in unrealized holding gains (losses) on available-for-sale debt securities	15,680			(5,158		)	10,522
Net change in unrealized holding gains (losses) on available-for-sale equity securities	—			—			—
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	(1,831		)	641			(1,190		)
Less: Reclassification adjustment for net (gains) losses included in net income	560			(196		)	364
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	(1,271		)	445			(826		)
Net change in pension and other post-retirement obligations	708			(248		)	460
Total other comprehensive income (loss)	$	15,117		$	(4,961	)	$	10,156

	Three Months Ended March 31, 2016
	Tax (Expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	(3,634	)	$	1,285		$	(2,349	)
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	80,468			(28,685		)	51,783
Less: Reclassification adjustment for net losses (gains) included in net income	(464		)	164			(300		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	76,370			(27,236		)	49,134
Net change in unrealized holding gains (losses) on available-for-sale equity securities	104			(36		)	68
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	14,229			(4,980		)	9,249
Less: Reclassification adjustment for net (gains) losses included in net income	(644		)	224			(420		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	13,585			(4,756		)	8,829
Net change in pension and other post-retirement obligations	1,293			(452		)	841
Total other comprehensive income (loss)	$	91,352		$	(32,480	)	$	58,872

Activity in accumulated other comprehensive income, net of tax

The following table presents activity in accumulated other comprehensive income (loss), net of tax, for the three-month periods ended March 31, 2017 and 2016:

(dollar amounts in thousands)	Unrealized gains and (losses) on debt securities (1)			Unrealized gains and (losses) on equity securities		Unrealized gains and (losses) on cash flow hedging derivatives			Unrealized gains (losses) for pension and other post- retirement obligations			Total
December 31, 2015	$	8,361		$	176	$	(3,948	)	$	(230,747	)	$	(226,158	)
Other comprehensive income before reclassifications	49,434			68		9,249			—			58,751
Amounts reclassified from accumulated OCI to earnings	(300		)	—		(420		)	841			121
Period change	49,134			68		8,829			841			58,872
March 31, 2016	$	57,495		$	244	$	4,881		$	(229,906	)	$	(167,286	)
December 31, 2016	$	(192,764	)	$	287	$	(2,634	)	$	(205,905	)	$	(401,016	)
Other comprehensive income before reclassifications	6,725			—		(1,190		)	—			5,535
Amounts reclassified from accumulated OCI to earnings	3,797			—		364			460			4,621
Period change	10,522			—		(826		)	460			10,156
March 31, 2017	$	(182,242	)	$	287	$	(3,460	)	$	(205,445	)	$	(390,860	)

Reclassification Out Of Accumulated OCI

The following table presents the reclassification adjustments out of accumulated OCI included in net income and the impacted line items as listed on the Unaudited Condensed Consolidated Statements of Income for the three-month periods ended March 31, 2017 and 2016:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
	Three Months Ended
(dollar amounts in thousands)	March 31, 2017			March 31, 2016
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	(3,606	)	$	464		Interest income - held-to-maturity securities - taxable
Realized gain (loss) on sale of securities	(2,244		)	—			Noninterest income - net gains (losses) on sale of securities
OTTI recorded	(24		)	—			Noninterest income - net gains (losses) on sale of securities
	(5,874		)	464			Total before tax
	2,077			(164		)	Tax (expense) benefit
	$	(3,797	)	$	300		Net of tax
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	(560	)	$	645		Interest income - loans and leases
Interest rate contracts	—			(1		)	Noninterest income - other income
	(560		)	644			Total before tax
	196			(224		)	Tax (expense) benefit
	$	(364	)	$	420		Net of tax
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(1,200	)	$	(1,785	)	Noninterest expense - personnel costs
Prior service credit	492			492			Noninterest expense - personnel costs
	(708		)	(1,293		)	Total before tax
	248			452			Tax (expense) benefit
	$	(460	)	$	(841	)	Net of tax

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EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Basic and diluted earnings loss per share

The calculation of basic and diluted earnings per share for the three-month periods ended March 31, 2017 and 2016, was as follows:

	Three Months Ended March 31,
(dollar amounts in thousands, except per share amounts)	2017			2016
Basic earnings per common share:
Net income	$	208,094		$	171,314
Preferred stock dividends	(18,878		)	(7,998		)
Net income available to common shareholders	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Basic earnings per common share	$	0.17		$	0.21
Diluted earnings per common share:
Net income available to common shareholders	$	189,216		$	163,316
Effect of assumed preferred stock conversion	—			—
Net income applicable to diluted earnings per share	$	189,216		$	163,316
Average common shares issued and outstanding	1,086,374			795,755
Dilutive potential common shares:
Stock options and restricted stock units and awards	19,139			10,385
Shares held in deferred compensation plans	2,953			2,075
Other	151			134
Dilutive potential common shares:	22,243			12,594
Total diluted average common shares issued and outstanding	1,108,617			808,349
Diluted earnings per common share	$	0.17		$	0.20

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BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The following table shows the components of net periodic (benefit) cost for all plans:

	Pension Benefits								Post Retirement Benefits
	Three Months Ended March 31,								Three Months Ended March 31,
(dollar amounts in thousands)	2017					2016			2017					2016
Service cost	$	640				$	1,025		$	22				$	—
Interest cost	7,477					6,748			99					55
Expected return on plan assets	(13,803		)			(10,223		)	—					—
Amortization of prior service cost	—					—			(492		)			(492		)
Amortization of (gain) loss	1,747					1,864			(55		)			(72		)
Settlements	2,500					3,400			—					—
Net periodic (benefit) cost	$	(1,439	)	(1	)	$	2,814		$	(426	)	(1	)	$	(509	)

Schedule of Costs of Retirement Plans

defined contribution plans during the first quarter 2017 and 2016 was $11 million and $8 million, respectively.

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FAIR VALUES OF ASSETS AND LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on a recurring basis

Assets and Liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2017 and December 31, 2016 are summarized below:

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	423,324	$	—	$	—		$	423,324
Loans held for investment	—		54,123		44,219		—			98,342
Trading account securities:
Municipal securities	—		3,434		—		—			3,434
Other securities	94,201		150		—		—			94,351
	94,201		3,584		—		—			97,785
Available-for-sale and other securities:
U.S. Treasury securities	6,890		—		—		—			6,890
Federal agencies: Mortgage-backed	—		11,221,867		—		—			11,221,867
Federal agencies: Other agencies	—		89,843		—		—			89,843
Municipal securities	—		449,502		2,867,652		—			3,317,154
Asset-backed securities	—		707,445		59,492		—			766,937
Corporate debt	—		198,681		—		—			198,681
Other securities	15,632		3,973		—		—			19,605
	22,522		12,671,311		2,927,144		—			15,620,977
MSRs	—		—		13,307		—			13,307
Derivative assets	—		342,584		9,439		(173,603		)	178,420
Liabilities
Derivative liabilities	—		322,999		6,745		(246,192		)	83,552
Short-term borrowings	1,420		—		—		—			1,420

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	438,224	$	—	$	—		$	438,224
Loans held for investment	—		34,439		47,880		—			82,319
Trading account securities:
Municipal securities	—		1,148		—		—			1,148
Other securities	132,147		—		—		—			132,147
	132,147		1,148		—		—			133,295
Available-for-sale and other securities:
U.S. Treasury securities	5,497		—		—		—			5,497
Federal agencies: Mortgage-backed	—		10,673,342		—		—			10,673,342
Federal agencies: Other agencies	—		73,542		—		—			73,542
Municipal securities	—		452,013		2,798,044		—			3,250,057
Asset-backed securities	—		717,478		76,003		—			793,481
Corporate debt	—		198,683		—		—			198,683
Other securities	16,588		3,943		—		—			20,531
	22,085		12,119,001		2,874,047		—			15,015,133
MSRs	—		—		13,747		—			13,747
Derivative assets	—		414,412		5,747		(181,940		)	238,219
Liabilities
Derivative liabilities	—		362,777		7,870		(272,361		)	98,286
Short-term borrowings	474		—		—		—			474

(1) Amounts represent the impact of legally enforceable master netting agreements that allow the Company to settle positive and negative positions and cash collateral held or placed with the same counterparties.

Rollforward of financial instruments measured on a recurring basis and classified as Level 3

	Level 3 Fair Value Measurements Three months ended March 31, 2017
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(333		)	—			—			—
Total gains/losses for the period:
Included in earnings	(440		)	5,150			(1,386		)	28			(63		)
Included in OCI	—			—			20,475			3,172			—
Purchases/originations	—			—			132,666			—			—
Sales	—			—			—			(19,133		)	—
Repayments	—			—			—			—			(3,598		)
Issues	—			—			—			—			—
Settlements	—			—			(82,147		)	(578		)	—
Closing balance	$	13,307		$	2,694		$	2,867,652		$	59,492		$	44,219
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(440	)	$	5,150		$	20,269		$	1,212		$	—

	Level 3 Fair Value Measurements Three months ended March 31, 2016
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Asset- backed securities			Loans held for investment
Opening balance	$	17,585		$	6,056		$	2,095,551		$	100,337		$	1,748
Transfers into Level 3	—			—			—			—			—
Transfers out of Level 3 (1)	—			(915		)	—			—			—
Total gains/losses for the period:
Included in earnings	(2,766		)	5,206			—			—			—
Included in OCI	—			—			11,840			(5,168		)	—
Purchases/originations	—			—			237,450			—			—
Sales	—			—			—			—			—
Repayments	—			—			—			—			(532		)
Issues	—			—			—			—			—
Settlements	—			—			(63,098		)	(840		)	—
Closing balance	$	14,819		$	10,347		$	2,281,743		$	94,329		$	1,216
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$	(2,766	)	$	5,306		$	—		$	—		$	—

Classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities

The tables below summarize the classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities for the three-month periods ended March 31, 2017 and 2016:

	Level 3 Fair Value Measurements Three months ended March 31, 2017
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities			Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(440	)	$	5,150	$	—		$	—	$	—
Securities gains (losses)	—			—		(1,386		)	28		—
Interest and fee income	—			—		—			—		—
Noninterest income	—			—		—			—		(63		)
Total	$	(440	)	$	5,150	$	(1,386	)	$	28	$	(63	)

	Level 3 Fair Value Measurements Three months ended March 31, 2016
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(2,766	)	$	5,206	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		—
Interest and fee income	—			—		—		—		—
Noninterest income	—			—		—		—		—
Total	$	(2,766	)	$	5,206	$	—	$	—	$	—

Assets and liabilities under the fair value option

The following table presents the fair value and aggregate principal balance of certain assets and liabilities under the fair value option:

	March 31, 2017
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	423,324	$	408,424	$	14,900		$	—	$	—	$	—
Loans held for investment	98,342		110,234		(11,892		)	8,572		11,507		(2,935		)

	December 31, 2016
	Total Loans							Loans that are 90 or more days past due
(dollar amounts in thousands)	Fair value carrying amount		Aggregate unpaid principal		Difference			Fair value carrying amount		Aggregate unpaid principal		Difference
Assets
Loans held for sale	$	438,224	$	433,760	$	4,464		$	—	$	—	$	—
Loans held for investment	82,319		91,998		(9,679		)	8,408		11,082		(2,674		)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the three-month periods ended March 31, 2017 and 2016:

	Net gains (losses) from fair value changes
	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Assets
Loans held for sale	$	9,076		$	4,649
Loans held for investment	(63		)	—

	Gains (losses) included in fair value changes associated with instrument specific credit risk
	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Assets
Loans held for investment	$	—	$	90

Assets measured at fair value on a nonrecurring basis

ssets measured at fair value on a nonrecurring basis were as follows:

			Fair Value Measurements Using
(dollar amounts in thousands)	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Total Gains/(Losses) Three months ended March 31, 2017
MSRs	$	176,747	$	—	$	—	$	176,747	$	1,800
Impaired loans	52,367		—		—		52,367		5,267
Other real estate owned	49,887		—		—		49,887		2,363

Quantitative information about significant unobservable level 3 fair value measurement inputs

	Quantitative Information about Level 3 Fair Value Measurements at March 31, 2017
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,307	Discounted cash flow	Constant prepayment rate	8.00% - 30.0% (12.0%)
				Spread over forward interest rate swap rates	3.0% - 10.0% (8.4%)
Derivative assets	9,439		Consensus Pricing	Net market price	-4.7% - 26.7% (2.0%)
Derivative liabilities	6,745			Estimated Pull through %	9.0% - 99.0% (78.0%)
Municipal securities	2,867,652		Discounted cash flow	Discount rate	0.0% - 10.3% (3.7%)
				Cumulative default	0.0% - 38.4% (3.1%)
				Loss given default	5.0% - 90.0% (24.0%)
Asset-backed securities	59,492		Discounted cash flow	Discount rate	5.1% - 12.1% (6.4%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	0.9% - 100% (10.9%)
				Loss given default	85% - 100% (96.1%)
				Cure given deferral	0.0% - 75.0% (32.7%)
Loans held for investment	44,219		Discounted cash flow	Discount rate	5.4% - 16.8% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	176,747		Discounted cash flow	Constant prepayment rate	6.30% - 21.2% (8.1%)
				Spread over forward interest rate swap rates	3.0% - 20.0% (10.6%)
Impaired loans	52,367		Appraisal value	NA	NA
Other real estate owned	49,887		Appraisal value	NA	NA

	Quantitative Information about Level 3 Fair Value Measurements at December 31, 2016
(dollar amounts in thousands)	Fair Value		Valuation Technique	Significant Unobservable Input	Range (Weighted Average)
Measured at fair value on a recurring basis:
MSRs	$	13,747	Discounted cash flow	Constant prepayment rate	5.63% - 34.4% (10.9%)
				Spread over forward interest rate swap rates	3.0% - 9.2% (5.4%)
Derivative assets	5,747		Consensus Pricing	Net market price	-7.1% - 25.4% (1.1%)
Derivative liabilities	7,870			Estimated Pull through %	8.1% - 99.8% (76.9%)
Municipal securities	2,798,044		Discounted cash flow	Discount rate	0.0% - 10.0% (3.6%)
				Cumulative default	0.3% - 37.8% (4.0%)
				Loss given default	5.0% - 80.0% (24.1%)
Asset-backed securities	76,003		Discounted cash flow	Discount rate	5.0% - 12.0% (6.3%)
				Cumulative prepayment rate	0.0% - 73% (6.5%)
				Cumulative default	1.1% - 100% (11.2%)
				Loss given default	85% - 100% (96.3%)
				Cure given deferral	0.0% - 75.0% (36.2%)
Loans held for investment	47,880		Discounted cash flow	Constant prepayment rate	5.4% - 16.2% (5.6%)
Measured at fair value on a nonrecurring basis:
MSRs	171,309		Discounted cash flow	Constant prepayment rate	5.57% - 30.4% (7.8%)
				Spread over forward interest rate swap rates	4.2% - 20.0% (11.7%)
Impaired loans	53,818		Appraisal value	NA	NA
Other real estate owned	50,930		Appraisal value	NA	NA

Carrying amounts and estimated fair values of financial instruments

The following table provides the carrying amounts and estimated fair values of Huntington’s financial instruments that are carried either at fair value or cost at March 31, 2017 and December 31, 2016:

	March 31, 2017				December 31, 2016
(dollar amounts in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Assets
Cash and short-term assets	$	1,371,868	$	1,371,868	$	1,443,037	$	1,443,037
Trading account securities	97,785		97,785		133,295		133,295
Loans held for sale	518,238		522,121		512,951		515,640
Available-for-sale and other securities	16,173,605		16,173,605		15,562,837		15,562,837
Held-to-maturity securities	7,533,517		7,502,102		7,806,939		7,787,268
Net loans and direct financing leases	66,425,689		66,275,735		66,323,583		66,294,639
Derivatives	178,420		178,420		238,219		238,219
Financial Liabilities
Deposits	77,422,510		78,238,093		75,607,717		76,161,091
Short-term borrowings	1,263,430		1,263,430		3,692,654		3,692,654
Long-term debt	9,279,140		9,419,853		8,309,159		8,387,444
Derivatives	83,552		83,552		98,286		98,286

The following table presents the level in the fair value hierarchy for the estimated fair values of only Huntington’s financial instruments that are not already on the Unaudited Condensed Consolidated Balance Sheets at fair value at March 31, 2017 and December 31, 2016:

	Estimated Fair Value Measurements at Reporting Date Using						March 31, 2017
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,502,102	$	—	$	7,502,102
Net loans and direct financing leases	—		—		66,275,735		66,275,735
Financial Liabilities
Deposits	—		74,456,322		3,781,771		78,238,093
Short-term borrowings	1,420		—		1,262,010		1,263,430
Long-term debt	—		9,013,768		406,085		9,419,853

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2016
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	7,787,268	$	—	$	7,787,268
Net loans and direct financing leases	—		—		66,294,639		66,294,639
Financial Liabilities
Deposits	—		72,319,328		3,841,763		76,161,091
Short-term borrowings	474		—		3,692,180		3,692,654
Long-term debt	—		7,980,176		407,268		8,387,444

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DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Gross notional values of derivatives used in asset and liability management activities

The following table presents the gross notional values of derivatives used in Huntington’s asset and liability management activities at March 31, 2017, identified by the underlying interest rate-sensitive instruments:

(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	2,550,000	$	2,550,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	7,225,000		—		7,225,000
Total notional value at March 31, 2017	$	8,175,000	$	2,550,000	$	10,725,000

Additional information about the interest rate swaps used in asset and liability management activities

The following table presents additional information about the interest rate swaps used in Huntington’s asset and liability management activities at March 31, 2017:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	2,550,000	0.5	$	(4,371	)	1.08	%	1.19	%
Liability conversion swaps
Receive fixed—generic	8,175,000		2.8	(64,090		)	1.51		1.02
Total swap portfolio at March 31, 2017	$	10,725,000	2.3	$	(68,461	)	1.41	%	1.06	%

Asset and liability derivatives included in accrued income and other assets

The following table presents the fair values at March 31, 2017 and December 31, 2016 of Huntington’s derivatives that are designated and not designated as hedging instruments. Amounts in the table below are presented gross without the impact of any net collateral arrangements:

Asset derivatives included in accrued income and other assets:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	42,421	$	46,440
Interest rate contracts not designated as hedging instruments	197,221		213,587
Foreign exchange contracts not designated as hedging instruments	18,431		23,265
Commodities contracts not designated as hedging instruments	73,996		108,026
Equity contracts not designated as hedging instruments	10,081		9,775
Total contracts	$	342,150	$	401,093

Liability derivatives included in accrued expenses and other liabilities:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Interest rate contracts designated as hedging instruments	$	110,882	$	99,996
Interest rate contracts not designated as hedging instruments	127,260		143,976
Foreign exchange contracts not designated as hedging instruments	17,285		19,576
Commodities contracts not designated as hedging instruments	70,705		104,328
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	326,132	$	367,876

Increase or (decrease) to interest expense for derivatives designated as fair value hedges

The following table presents the change in fair value for derivatives designated as fair value hedges as well as the offsetting change in fair value on the hedged item:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	—		$	(82	)
Change in fair value of hedged deposits (1)	—			72
Change in fair value of interest rate swaps hedging subordinated notes (2)	(4,708		)	6,804
Change in fair value of hedged subordinated notes (2)	5,403			(6,804		)
Change in fair value of interest rate swaps hedging other long-term debt (2)	(10,282		)	61,032
Change in fair value of hedged other long-term debt (2)	8,535			(59,786		)

(1) Effective portion of the hedging relationship is recognized in Interest expense—deposits in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

(2) Effective portion of the hedging relationship is recognized in Interest expense—subordinated notes and other long-term debt in the Unaudited Condensed Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the Unaudited Condensed Consolidated Statements of Income.

Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges

The following table presents the gains and (losses) recognized in OCI and the location in the Unaudited Condensed Consolidated Statements of Income of gains and (losses) reclassified from OCI into earnings for derivatives designated as effective cash flow hedges:

Derivatives in cash flow hedging relationships	Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (after-tax)					Location of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion)
	Three months ended March 31,						Three months ended March 31,
(dollar amounts in thousands)	2017			2016			2017		2016
Interest rate contracts
Loans	$	(1,190	)	$	9,249	Interest and fee income - loans and leases	$	560	$	(645	)
Investment Securities	—			—		Noninterest income - other income	—		1
	$	(1,190	)	$	9,249		$	560	$	(644	)

Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as fair value and cash flow hedges

The following table presents the gains and (losses) recognized in noninterest income for the ineffective portion of interest rate contracts for derivatives designated as cash flow hedges for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017			2016
Derivatives in cash flow hedging relationships
Interest rate contracts
Loans	$	(103	)	$	421

Derivative assets and liabilities used in mortgage banking activities [Table Text Block]

The following table summarizes the derivative assets and liabilities used in mortgage banking activities:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Derivative assets:
Interest rate lock agreements	$	9,439		$	5,747
Forward trades and options	434			13,319
Total derivative assets	9,873			19,066
Derivative liabilities:
Interest rate lock agreements	(565		)	(1,598		)
Forward trades and options	(3,047		)	(1,173		)
Total derivative liabilities	(3,612		)	(2,771		)
Net derivative asset (liability)	$	6,261		$	16,295

Offsetting of financial liabilities and derivative liabilities

Offsetting of Financial Liabilities and Derivative Liabilities

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of liabilities presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
March 31, 2017	Derivatives	$	329,744	$	(246,192	)	$	83,552	$	—		$	(21,427	)	$	62,125
December 31, 2016	Derivatives	370,647		(272,361		)	98,286		(7,550		)	(23,943		)	66,793

Offsetting of financial assets and derivatives assets

The following tables present the gross amounts of these assets and liabilities with any offsets to arrive at the net amounts recognized in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

Offsetting of Financial Assets and Derivative Assets

									Gross amounts not offset in the condensed consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the condensed consolidated balance sheets			Net amounts of assets presented in the condensed consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
March 31, 2017	Derivatives	$	352,023	$	(173,603	)	$	178,420	$	(20,393	)	$	(11,120	)	$	146,907
December 31, 2016	Derivatives	420,159		(181,940		)	238,219		(34,328		)	(5,428		)	198,463

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VIEs (Tables)

3 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Carrying amount and classification of the trusts assets and liabilities

The following tables provide a summary of the assets and liabilities included in Huntington’s Unaudited Condensed Consolidated Financial Statements, as well as the maximum exposure to losses, associated with its interests related to unconsolidated VIEs for which Huntington holds an interest, but is not the primary beneficiary, to the VIE at March 31, 2017, and December 31, 2016:

	March 31, 2017
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	12,435	$	—	$	12,435
2015-1 Automobile Trust	2,698		—		2,698
Trust Preferred Securities	13,919		252,560		—
Low Income Housing Tax Credit Partnerships	559,819		279,270		559,819
Other Investments	95,033		41,232		95,033
Total	$	683,904	$	573,062	$	669,985

	December 31, 2016
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2016-1 Automobile Trust	$	14,770	$	—	$	14,770
2015-1 Automobile Trust	2,227		—		2,227
Trust Preferred Securities	13,919		252,552		—
Low Income Housing Tax Credit Partnerships	576,880		292,721		576,880
Other Investments	79,195		42,316		79,195
Total	$	686,991	$	587,589	$	673,072

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Unaudited Condensed Consolidated Balance Sheets at March 31, 2017 and December 31, 2016:

	March 31, 2017
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,565	$	—	$	1,565
Net loans and leases	55,358		—		55,358
Accrued income and other assets	—		275		275
Total assets	$	56,923	$	275	$	57,198
Liabilities:
Other long-term debt	$	45,906	$	—	$	45,906
Accrued interest and other liabilities	—		275		275
Total liabilities	45,906		275		46,181
Equity:
Beneficial Interest owned by third party	11,017		—		11,017
Total liabilities and equity	$	56,923	$	275	$	57,198

	December 31, 2016
	Huntington Technology Funding Trust		Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2014A
Assets:
Cash	$	1,564	$	—	$	1,564
Net loans and leases	69,825		—		69,825
Accrued income and other assets	—		281		281
Total assets	$	71,389	$	281	$	71,670
Liabilities:
Other long-term debt	$	57,494	$	—	$	57,494
Accrued interest and other liabilities	—		281		281
Total liabilities	57,494		281		57,775
Equity:
Beneficial Interest owned by third party	13,895		—		13,895
Total liabilities and equity	$	71,389	$	281	$	71,670

Summary of Outstanding Trust Preferred Securities

A list of trust preferred securities outstanding at March 31, 2017 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.74	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.76		(3)	32,093		3,093
Sky Financial Capital Trust III	2.55		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.40		(4)	74,320		2,320
Camco Financial Trust	3.59		(5)	4,252		155
Total				$	252,560	$	13,919

(1) Represents the principal amount of debentures issued to each trust, including unamortized original issue discount.

(2) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.70%.

(3) Variable effective rate at March 31, 2017, based on three-month LIBOR +0.625%.

(4) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.40%.

(5) Variable effective rate at March 31, 2017, based on three-month LIBOR +1.33%.

Affordable housing tax credit investments

The following table presents the balances of Huntington’s affordable housing tax credit investments and related unfunded commitments at March 31, 2017 and December 31, 2016:

(dollar amounts in thousands)	March 31, 2017			December 31, 2016
Affordable housing tax credit investments	$	870,421		$	877,237
Less: amortization	(310,602		)	(300,357		)
Net affordable housing tax credit investments	$	559,819		$	576,880
Unfunded commitments	$	279,270		$	292,721

The following table presents other information relating to Huntington’s affordable housing tax credit investments for the three-month periods ended March 31, 2017 and 2016:

	Three months ended March 31,
(dollar amounts in thousands)	2017		2016
Tax credits and other tax benefits recognized	$	23,283	$	18,285
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	16,961		12,407
Equity method
Tax credit investment (gains) losses included in non-interest income	109		132

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COMMITMENTS AND CONTINGENT LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Contract amounts of various commitments to extend credit

In the ordinary course of business, Huntington makes various commitments to extend credit that are not reflected in the Unaudited Condensed Consolidated Financial Statements. The contract amounts of these financial agreements at March 31, 2017 and December 31, 2016, were as follows:

(dollar amounts in thousands)	March 31, 2017		December 31, 2016
Contract amount represents credit risk:
Commitments to extend credit
Commercial	$	15,030,796	$	15,190,056
Consumer	12,523,637		12,235,943
Commercial real estate	1,531,769		1,697,671
Standby letters-of-credit	560,718		637,182
Commercial letters-of-credit	5,160		4,610

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SEGMENT REPORTING (Tables)

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Listed below is certain operating basis financial information reconciled to Huntington’s March 31, 2017, December 31, 2016, and March 31, 2016, reported results by business segment:

	Three Months Ended March 31,
Income Statements	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
(dollar amounts in thousands)
2017
Net interest income	$	393,496	$	174,563	$	139,333		$	46,649		$	15,215		$	(39,281	)	$	729,975
Provision for credit losses	31,294		22,137		9,549			2,771			1,887			—			67,638
Noninterest income	146,790		69,487		11,209			36,170			23,981			24,826			312,463
Noninterest expense	374,083		114,970		50,359			52,162			34,655			81,193			707,422
Income taxes	47,218		37,430		31,722			9,760			929			(67,775		)	59,284
Net income	$	87,691	$	69,513	$	58,912		$	18,126		$	1,725		$	(27,873	)	$	208,094
2016
Net interest income	$	264,529	$	105,350	$	95,597		$	34,923		$	12,985		$	(10,318	)	$	503,066
Provision (reduction in allowance) for credit losses	12,177		35,054		(16,649		)	(725		)	(2,274		)	(1		)	27,582
Noninterest income	120,257		58,916		7,311			24,717			11,503			19,163			241,867
Noninterest expense	280,121		92,995		40,206			40,503			24,593			12,662			491,080
Income taxes	32,371		12,676		27,773			6,952			759			(25,574		)	54,957
Net income	$	60,117	$	23,541	$	51,578		$	12,910		$	1,410		$	21,758		$	171,314

	Assets at				Deposits at
(dollar amounts in thousands)	March 31, 2017		December 31, 2016		March 31, 2017		December 31, 2016
Consumer & Business Banking	$	21,747,257	$	21,831,681	$	45,802,879	$	44,724,252
Commercial Banking	24,233,720		24,236,490		19,041,629		18,053,208
CREVF	23,953,670		23,576,832		1,890,433		1,893,072
RBHPCG	5,280,791		5,213,530		5,981,930		6,214,250
Home Lending	3,524,718		3,502,069		349,765		631,494
Treasury / Other	21,305,350		21,353,495		4,355,874		4,091,441
Total	$	100,045,506	$	99,714,097	$	77,422,510	$	75,607,717

Segment Disclosure of Assets and Deposits

	Assets at				Deposits at
(dollar amounts in thousands)	March 31, 2017		December 31, 2016		March 31, 2017		December 31, 2016
Consumer & Business Banking	$	21,747,257	$	21,831,681	$	45,802,879	$	44,724,252
Commercial Banking	24,233,720		24,236,490		19,041,629		18,053,208
CREVF	23,953,670		23,576,832		1,890,433		1,893,072
RBHPCG	5,280,791		5,213,530		5,981,930		6,214,250
Home Lending	3,524,718		3,502,069		349,765		631,494
Treasury / Other	21,305,350		21,353,495		4,355,874		4,091,441
Total	$	100,045,506	$	99,714,097	$	77,422,510	$	75,607,717

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) reserve component	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable net premium	$ 179,000,000	$ 120,000,000
Loans held for investment	98,342,000	82,319,000
Allowance for loan and lease losses	$ 672,580,000	638,413,000	$ 613,719,000	$ 597,843,000
Number of days past due	30 days
Allowance number of reserves | reserve	2
Allowance number of components of reserve | component	2
Collateral for secured borrowings	$ 29,300,000,000
Macquarie Equipment Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral for secured borrowings	55,000,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	$ 480,308,000	451,091,000	422,441,000	398,753,000
Threshold period past due for nonperforming status	90 days
Threshold outstanding balance for quarterly impairment evaluation	$ 1,000,000.0
Threshold period past due for write-off	90 days
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	$ 192,272,000	$ 187,322,000	$ 191,278,000	$ 199,090,000
Threshold period past due for nonperforming status	120 days
Threshold period past due for write-off	120 days
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for write-off	150 days
Secured by first-lien | Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for write-off	150 days
Secured by junior-lien | Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for write-off	120 days

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Loan and Lease Portfolio Composition (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Loan and Lease Portfolio
Commercial and industrial		$ 28,175,924	$ 28,058,712
Commercial real estate		7,093,118	7,300,901
Automobile		11,155,094	10,968,782
Home equity		9,974,294	10,105,774
Residential mortgage		7,829,137	7,724,961
Recreation Finance		1,934,983	1,846,447
Other consumer		935,719	956,419
Loans and leases	[1]	67,098,269	66,961,996
Allowance for loan and lease losses		(672,580)	(638,413)	$ (613,719)	$ (597,843)
Net loans and leases		$ 66,425,689	$ 66,323,583

[1] Amounts represent loans for which Huntington has elected the fair value option.

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Balances at Acquisition (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
FirstMerit Corporation
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Accretable yield	$ (37,372)	$ (36,669)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Accretable Yield Roll (Details) - FirstMerit Corporation $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 36,669
Accretion	(4,702)
Reclassification (to) from nonaccretable difference	5,405
Balance, end of period	$ 37,372

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Ending and Unpaid Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	$ 90,111	$ 102,380
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	67,514	68,338
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	22,597	34,042
FirstMerit Corporation
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	90,111	102,380
Purchased Credit Impaired, Unpaid Balance	135,991	156,351
FirstMerit Corporation | Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	67,514	68,338
Purchased Credit Impaired, Unpaid Balance	97,946	100,031
FirstMerit Corporation | Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased Credit Impaired, Ending Balance	22,597	34,042
Purchased Credit Impaired, Unpaid Balance	$ 38,045	$ 56,320

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans by Loan Class (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	$ 401,310	$ 423,003
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	232,171	234,184
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	13,889	20,508
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	4,881	5,766
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	69,575	71,798
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	80,686	90,502
Consumer | RV and Marine FInance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	106	245
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	$ 2	$ 0

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - NALs Past Due (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		$ 720,562	$ 718,203
Current		66,189,254	66,059,094
Purchased Credit Impaired		90,111	102,380
Consumer loans		98,342	82,319
Loans and leases	[1]	67,098,269	66,961,996
90 or more days past due and accruing		127,943	129,362
30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		341,306	320,341
60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		90,843	108,443
90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		288,413	289,419
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		166,818	136,362
Current		27,941,592	27,854,012
Purchased Credit Impaired		67,514	68,338
Consumer loans		0	0
Loans and leases		28,175,924	28,058,712
90 or more days past due and accruing		15,054	18,148
Commercial | Commercial and Industrial | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		77,998	42,052
Commercial | Commercial and Industrial | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		11,428	20,136
Commercial | Commercial and Industrial | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		77,392	74,174
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		64,787	54,048
Current		7,005,734	7,212,811
Purchased Credit Impaired		22,597	34,042
Consumer loans		0	0
Loans and leases		7,093,118	7,300,901
90 or more days past due and accruing		14,499	17,215
Commercial | Commercial Real Estate | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		38,046	21,187
Commercial | Commercial Real Estate | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		460	3,202
Commercial | Commercial Real Estate | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		26,281	29,659
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		94,412	103,913
Current		11,058,889	10,862,715
Purchased Credit Impaired		0	0
Consumer loans		1,793	2,154
Loans and leases		11,155,094	10,968,782
90 or more days past due and accruing		8,123	10,182
Consumer | Automobile | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		70,564	76,283
Consumer | Automobile | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		15,517	17,188
Consumer | Automobile | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		8,331	10,442
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		120,627	115,804
Current		9,850,680	9,986,697
Purchased Credit Impaired		0	0
Consumer loans		2,987	3,273
Loans and leases		9,974,294	10,105,774
90 or more days past due and accruing		15,453	11,508
Consumer | Home Equity | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		43,532	38,899
Consumer | Home Equity | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		18,464	23,903
Consumer | Home Equity | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		58,631	53,002
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		242,182	276,611
Current		7,495,211	7,373,414
Purchased Credit Impaired		0	0
Consumer loans		91,744	74,936
Loans and leases		7,829,137	7,724,961
90 or more days past due and accruing		69,244	66,952
Consumer | Residential Mortgage | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		91,831	122,469
Consumer | Residential Mortgage | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		38,144	37,460
Consumer | Residential Mortgage | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		112,207	116,682
Consumer | RV and Marine FInance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		15,367	13,805
Current		1,918,199	1,831,123
Purchased Credit Impaired		0	0
Consumer loans		1,417	1,519
Loans and leases		1,934,983	1,846,447
90 or more days past due and accruing		2,200	1,462
Consumer | RV and Marine FInance | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		10,101	10,009
Consumer | RV and Marine FInance | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		3,064	2,230
Consumer | RV and Marine FInance | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,202	1,566
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		16,369	17,660
Current		918,949	938,322
Purchased Credit Impaired		0	0
Consumer loans		401	437
Loans and leases		935,719	956,419
90 or more days past due and accruing		3,370	3,895
Consumer | Other Consumer | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		9,234	9,442
Consumer | Other Consumer | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		3,766	4,324
Consumer | Other Consumer | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		$ 3,369	$ 3,894

[1] Amounts represent loans for which Huntington has elected the fair value option.

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Allowance For Credit Losses Roll Forward [Abstract]
ALLL balance, beginning of period	$ 638,413	$ 597,843
Loan charge-offs	(70,715)	(59,692)
Recoveries of loans previously charged-off	31,277	51,140
Provision for loan and lease losses	73,679	24,338
Allowance for loans sold or transferred to loans held for sale	(74)	90
ALLL balance, end of period	672,580	613,719
AULC Balance, beginning of period	97,879	72,081
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	(6,041)	3,244
AULC Balance, end of period	91,838	75,325
ACL balance, end of period	764,418	689,044
Commercial
Allowance For Credit Losses Roll Forward [Abstract]
ALLL balance, beginning of period	451,091	398,753
Loan charge-offs	(23,669)	(28,949)
Recoveries of loans previously charged-off	17,815	39,911
Provision for loan and lease losses	35,145	12,726
Allowance for loans sold or transferred to loans held for sale	(74)	0
ALLL balance, end of period	480,308	422,441
AULC Balance, beginning of period	86,543	63,448
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	2,356	2,424
AULC Balance, end of period	88,899	65,872
ACL balance, end of period	569,207	488,313
Consumer
Allowance For Credit Losses Roll Forward [Abstract]
ALLL balance, beginning of period	187,322	199,090
Loan charge-offs	(47,046)	(30,743)
Recoveries of loans previously charged-off	13,462	11,229
Provision for loan and lease losses	38,534	11,612
Allowance for loans sold or transferred to loans held for sale	0	90
ALLL balance, end of period	192,272	191,278
AULC Balance, beginning of period	11,336	8,633
Provision for (reduction in allowance) unfunded loan commitments and letters of credit	(8,397)	820
AULC Balance, end of period	2,939	9,453
ACL balance, end of period	$ 195,211	$ 200,731

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	$ 28,175,924	$ 28,058,712
Commercial real estate	7,093,118	7,300,901
Automobile	11,155,094	10,968,782
Home equity	9,974,294	10,105,774
Residential mortgage	7,829,137	7,724,961
Other consumer	935,719	956,419
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	28,175,924	28,058,712
Commercial real estate	7,093,118	7,300,901
Commercial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	26,216,400	26,211,885
Commercial real estate	6,867,440	7,042,304
Commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	1,131,835	1,028,819
Commercial real estate	103,983	159,098
Commercial | OLEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	808,467	810,287
Commercial real estate	120,212	96,975
Commercial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial	19,222	7,721
Commercial real estate	1,483	2,524
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile	11,153,301	10,966,628
Home equity	9,971,307	10,102,501
Residential mortgage	7,737,393	7,650,025
RV and marine finance	1,933,566	1,844,928
Other consumer	935,318	955,982
Consumer | Greater than 750
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile	5,445,124	5,369,085
Home equity	6,131,710	6,280,328
Residential mortgage	4,643,664	4,662,777
RV and marine finance	1,179,561	1,064,143
Other consumer	333,683	346,867
Consumer | 650-749
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile	4,254,397	4,043,611
Home equity	2,924,593	2,891,330
Residential mortgage	2,406,782	2,285,121
RV and marine finance	699,701	644,039
Other consumer	440,599	455,959
Consumer | Less Than 650
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile	1,172,859	1,298,460
Home equity	631,268	637,560
Residential mortgage	611,675	615,067
RV and marine finance	16,202	72,995
Other consumer	142,515	133,243
Consumer | Other FICO score
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile	280,921	255,472
Home equity	283,736	293,283
Residential mortgage	75,272	87,060
RV and marine finance	38,102	63,751
Other consumer	$ 18,521	$ 19,913

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - ALLL Attributable to Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Portion of ALLL balance:
Attributable to loans collectively evaluated for impairment	$ 636,173	$ 616,867
Attributable to loans individually evaluated for impairment	36,407	21,546
Total ALLL balance	672,580	638,413	$ 613,719	$ 597,843
Portion of loan and lease ending balance:
Collectively evaluated for impairment	66,026,233	65,903,783
Individually evaluated for impairment	883,583	873,514
Financing Receivable Evaluated For Impairment	66,999,927	66,879,677
Commercial
Portion of ALLL balance:
Attributable to loans collectively evaluated for impairment	455,789	440,566
Attributable to loans individually evaluated for impairment	24,519	10,525
Total ALLL balance	480,308	451,091	422,441	398,753
Portion of loan and lease ending balance:
Collectively evaluated for impairment	34,753,138	34,841,609
Individually evaluated for impairment	425,793	415,624
Financing Receivable Evaluated For Impairment	35,269,042	35,359,613
Consumer
Portion of ALLL balance:
Attributable to loans collectively evaluated for impairment	180,384	176,301
Attributable to loans individually evaluated for impairment	11,888	11,021
Total ALLL balance	192,272	187,322	$ 191,278	$ 199,090
Portion of loan and lease ending balance:
Collectively evaluated for impairment	31,273,095	31,062,174
Individually evaluated for impairment	457,790	457,890
Financing Receivable Evaluated For Impairment	31,730,885	31,520,064
Purchased credit-impaired
Portion of loan and lease ending balance:
Collectively evaluated for impairment	90,111	102,380
Purchased credit-impaired | Commercial
Portion of loan and lease ending balance:
Collectively evaluated for impairment	90,111	102,380
Purchased credit-impaired | Consumer
Portion of loan and lease ending balance:
Collectively evaluated for impairment	$ 0	$ 0

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans with no allowance recorded	$ 0		$ 0
Average balance of impaired loans with no allowance recorded	0	$ 0
Interest income recognized on impaired loans with no allowance recorded	0	0
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans with no allowance recorded	0		0
Average balance of impaired loans with no allowance recorded	0	0
Interest income recognized on impaired loans with no allowance recorded	0	0
Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans with no allowance recorded	0		0
Average balance of impaired loans with no allowance recorded	0	1,473
Interest income recognized on impaired loans with no allowance recorded	0	2
RV and Marine FInance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of impaired loans with no allowance recorded	0
Average balance of impaired loans with no allowance recorded	0
Interest income recognized on impaired loans with no allowance recorded	0
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	250,789		299,606
Unpaid principal balance of impaired loans with no allowance recorded	290,673		358,712
Average balance of impaired loans with no allowance recorded	275,409	261,144
Interest income recognized on impaired loans with no allowance recorded	4,500	1,233
Ending balance of impaired loans with allowance recorded	278,368		406,243
Unpaid principal balance of impaired loans with allowance recorded	306,613		448,121
Related Allowance	33,678		22,259
Impaired Financing Receivable, Average Recorded Investment	609,588	525,228
Impaired Financing Receivable, Interest Income, Accrual Method	6,406	4,319
Average balance of impaired loans with allowance recorded	334,179	264,084
Interest income recognized on impaired loans with allowance recorded	1,906	3,086
Loans considered impaired due to status as a TDR	117,000		293,000
Impaired Financing Receivable, Recorded Investment	529,157		705,849
Impaired Financing Receivable, Unpaid Principal Balance	597,286		806,833
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	86,621		88,817
Unpaid principal balance of impaired loans with no allowance recorded	117,745		126,152
Average balance of impaired loans with no allowance recorded	85,829	71,807
Interest income recognized on impaired loans with no allowance recorded	2,000	1,616
Ending balance of impaired loans with allowance recorded	41,416		97,238
Unpaid principal balance of impaired loans with allowance recorded	49,444		107,512
Related Allowance	2,810		3,434
Impaired Financing Receivable, Average Recorded Investment	154,923	151,664
Impaired Financing Receivable, Interest Income, Accrual Method	2,467	2,374
Average balance of impaired loans with allowance recorded	69,094	79,857
Interest income recognized on impaired loans with allowance recorded	467	758
Loans considered impaired due to status as a TDR	24,000		81,000
Impaired Financing Receivable, Recorded Investment	128,037		186,055
Impaired Financing Receivable, Unpaid Principal Balance	167,189		233,664
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	0		0
Ending balance of impaired loans with allowance recorded	32,731		30,961
Unpaid principal balance of impaired loans with allowance recorded	32,942		31,298
Related Allowance	2,004		1,850
Impaired Financing Receivable, Average Recorded Investment	31,846	32,284
Impaired Financing Receivable, Interest Income, Accrual Method	534	578
Average balance of impaired loans with allowance recorded	31,846	32,284
Interest income recognized on impaired loans with allowance recorded	534	578
Impaired Financing Receivable, Recorded Investment	32,731		30,961
Impaired Financing Receivable, Unpaid Principal Balance	32,942		31,298
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	0		0
Ending balance of impaired loans with allowance recorded	326,755		319,404
Unpaid principal balance of impaired loans with allowance recorded	360,622		352,722
Related Allowance	16,232		15,032
Impaired Financing Receivable, Average Recorded Investment	323,079	250,016
Impaired Financing Receivable, Interest Income, Accrual Method	3,949	2,968
Average balance of impaired loans with allowance recorded	323,079	250,016
Interest income recognized on impaired loans with allowance recorded	3,949	2,968
Impaired Financing Receivable, Recorded Investment	326,755		319,404
Impaired Financing Receivable, Unpaid Principal Balance	360,622		352,722
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	0		0
Ending balance of impaired loans with allowance recorded	349,527		327,753
Unpaid principal balance of impaired loans with allowance recorded	383,685		363,099
Related Allowance	14,217		12,849
Impaired Financing Receivable, Average Recorded Investment	338,640	363,753
Impaired Financing Receivable, Interest Income, Accrual Method	3,110	3,038
Average balance of impaired loans with allowance recorded	338,640	362,280
Interest income recognized on impaired loans with allowance recorded	3,110	3,036
Amount of TDRs guaranteed by the U.S. government	30,000		29,000
Impaired Financing Receivable, Recorded Investment	349,527		327,753
Impaired Financing Receivable, Unpaid Principal Balance	383,685		363,099
Consumer | RV and Marine FInance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	0		0
Unpaid principal balance of impaired loans with no allowance recorded			0
Average balance of impaired loans with no allowance recorded		0
Interest income recognized on impaired loans with no allowance recorded		0
Ending balance of impaired loans with allowance recorded	687		0
Unpaid principal balance of impaired loans with allowance recorded	710		0
Related Allowance	26		0
Impaired Financing Receivable, Average Recorded Investment	343	0
Impaired Financing Receivable, Interest Income, Accrual Method	11	0
Average balance of impaired loans with allowance recorded	343	0
Interest income recognized on impaired loans with allowance recorded	11	0
Impaired Financing Receivable, Recorded Investment	687		0
Impaired Financing Receivable, Unpaid Principal Balance	710		0
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance of impaired loans with no allowance recorded	0		0
Unpaid principal balance of impaired loans with no allowance recorded	0		0
Average balance of impaired loans with no allowance recorded	0	45
Interest income recognized on impaired loans with no allowance recorded	0	102
Ending balance of impaired loans with allowance recorded	4,245		3,897
Unpaid principal balance of impaired loans with allowance recorded	4,245		3,897
Related Allowance	248		260
Impaired Financing Receivable, Average Recorded Investment	4,071	4,844
Impaired Financing Receivable, Interest Income, Accrual Method	57	168
Average balance of impaired loans with allowance recorded	4,071	4,799
Interest income recognized on impaired loans with allowance recorded	57	$ 66
Impaired Financing Receivable, Recorded Investment	4,245		3,897
Impaired Financing Receivable, Unpaid Principal Balance	$ 4,245		$ 3,897

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) contract	Mar. 31, 2016 USD ($) contract
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	1,428	1,434
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 180,401,000	$ 194,509,000
New Troubled Debt Restructuring, Financial effects of modification	$ 1,585,000	$ 629,000
Commercial | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts	1	1
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 19,000	$ 17,000
New Troubled Debt Restructuring, Financial effects of modification	(6,000)	$ 1,000
Commercial | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract		184
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	112,425,000	$ 122,658,000
New Troubled Debt Restructuring, Financial effects of modification	$ 1,002,000	$ (572,000)
Commercial | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	3	8
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 160,000	$ 858,000
New Troubled Debt Restructuring, Financial effects of modification	$ 27,000	$ 4,000
Commercial | Commercial and Industrial
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	240	193
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 112,604,000	$ 123,533,000
New Troubled Debt Restructuring, Financial effects of modification	$ 1,023,000	$ (567,000)
Commercial | Commercial and Industrial | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	236
Commercial | Commercial Real Estate
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	24	26
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 31,263,000	$ 34,058,000
New Troubled Debt Restructuring, Financial effects of modification	$ 388,000	$ 543,000
Commercial | Commercial Real Estate | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ 0
Commercial | Commercial Real Estate | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	24	24
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 31,263,000	$ 33,795,000
New Troubled Debt Restructuring, Financial effects of modification	$ 388,000	$ 559,000
Commercial | Commercial Real Estate | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	2
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 263,000
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ (16,000)
Consumer | Automobile
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	731	742
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 6,301,000	$ 6,505,000
New Troubled Debt Restructuring, Financial effects of modification	$ (145,000)	$ (337,000)
Consumer | Automobile | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	14	4
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 178,000	$ 42,000
New Troubled Debt Restructuring, Financial effects of modification	$ (5,000)	$ (2,000)
Consumer | Automobile | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	477	421
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 4,301,000	$ 3,901,000
New Troubled Debt Restructuring, Financial effects of modification	$ (111,000)	$ (220,000)
Consumer | Automobile | Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	240	317
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 1,822,000	$ 2,562,000
New Troubled Debt Restructuring, Financial effects of modification	$ (29,000)	$ (115,000)
Consumer | Automobile | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ 0
Consumer | Home Equity
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	259	348
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 13,406,000	$ 16,871,000
New Troubled Debt Restructuring, Financial effects of modification	$ (45,000)	$ 482,000
Consumer | Home Equity | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	8	20
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 562,000	$ 1,384,000
New Troubled Debt Restructuring, Financial effects of modification	$ (7,000)	$ (67,000)
Consumer | Home Equity | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	106	229
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 5,496,000	$ 11,890,000
New Troubled Debt Restructuring, Financial effects of modification	$ 674,000	$ 1,282,000
Consumer | Home Equity | Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	87	99
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 3,619,000	$ 3,597,000
New Troubled Debt Restructuring, Financial effects of modification	$ (1,038,000)	$ (733,000)
Consumer | Home Equity | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	58	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 3,729,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ (326,000)	$ 0
Consumer | Residential Mortgage
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	141	114
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 15,792,000	$ 12,921,000
New Troubled Debt Restructuring, Financial effects of modification	$ 389,000	$ 539,000
Consumer | Residential Mortgage | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	2	5
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 110,000	$ 657,000
New Troubled Debt Restructuring, Financial effects of modification	$ 9,000	$ 32,000
Consumer | Residential Mortgage | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	99	92
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 11,071,000	$ 10,759,000
New Troubled Debt Restructuring, Financial effects of modification	$ 258,000	$ 577,000
Consumer | Residential Mortgage | Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	24	17
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 2,691,000	$ 1,505,000
New Troubled Debt Restructuring, Financial effects of modification	$ 136,000	$ (70,000)
Consumer | Residential Mortgage | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	16	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 1,920,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 14,000	$ 0
Consumer | RV and Marine FInance
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	29	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 686,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ (16,000)	$ 0
Consumer | RV and Marine FInance | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ 0
Consumer | RV and Marine FInance | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	14	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 476,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ (12,000)	$ 0
Consumer | RV and Marine FInance | Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	15	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 210,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ (4,000)	$ 0
Consumer | RV and Marine FInance | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ 0
Consumer | Other Consumer
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	4	11
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 349,000	$ 621,000
New Troubled Debt Restructuring, Financial effects of modification	$ (9,000)	$ (31,000)
Consumer | Other Consumer | Interest rate reduction
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	1	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 78,000	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ (2,000)	$ 0
Consumer | Other Consumer | Amortization or maturity date change
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	2	4
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 267,000	$ 555,000
New Troubled Debt Restructuring, Financial effects of modification	$ (7,000)	$ (24,000)
Consumer | Other Consumer | Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	1	7
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 4,000	$ 66,000
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ (7,000)
Consumer | Other Consumer | Other
Financing Receivable, Modifications [Line Items]
New Troubled Debt Restructuring, Number of Contracts | contract	0	0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance	$ 0	$ 0
New Troubled Debt Restructuring, Financial effects of modification	$ 0	$ 0

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Pledged investment securities to secure public and trust deposits, trading account liabilities, US Treasury demand notes and security repurchase agreements	$ 5,200
Nonmarketable equity securities
Schedule of Available-for-sale Securities [Line Items]
Stock issued by Federal Reserve Banks included in other securities	303		$ 299
Federal Home Loan Bank of Cincinnati | Nonmarketable equity securities
Schedule of Available-for-sale Securities [Line Items]
Stock issued by the Federal Home Loan Bank included in other securities	249		$ 249
Commercial
Schedule of Available-for-sale Securities [Line Items]
Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets	$ 3	$ 2

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost	$ 16,375,549	$ 15,776,855
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale and other securities	16,173,605	15,562,837
U.S. Treasury
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	6,379	4,978
Amortized Cost, 1-5 years	502	502
Amortized Cost, 6-10 years	0	0
Amortized Cost, Over 10 years	0	0
Amortized Cost	6,881	5,480
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	6,383	4,988
Fair Value, 1-5 years	507	509
Fair Value, 6-10 years	0	0
Fair Value, Over 10 years	0	0
Available-for-sale and other securities	6,890	5,497
Federal agencies: Mortgage-backed securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	0	0
Amortized Cost, 1-5 years	41,925	46,591
Amortized Cost, 6-10 years	273,555	173,941
Amortized Cost, Over 10 years	11,099,533	10,630,929
Amortized Cost	11,415,013	10,851,461
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	41,995	46,762
Fair Value, 6-10 years	274,738	176,404
Fair Value, Over 10 years	10,905,134	10,450,176
Available-for-sale and other securities	11,221,867	10,673,342
Federal agencies, Other agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	4,354	4,302
Amortized Cost, 1-5 years	9,503	5,092
Amortized Cost, 6-10 years	75,673	63,618
Amortized Cost, Over 10 years	0	0
Amortized Cost	89,530	73,012
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	4,417	4,367
Fair Value, 1-5 years	9,690	5,247
Fair Value, 6-10 years	75,736	63,928
Fair Value, Over 10 years	0	0
Available-for-sale and other securities	89,843	73,542
Total U.S. Treasury, Federal agency securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost	11,511,424	10,929,953
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale and other securities	11,318,600	10,752,381
Municipal securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	180,536	169,636
Amortized Cost, 1-5 years	951,261	933,893
Amortized Cost, 6-10 years	1,481,804	1,463,459
Amortized Cost, Over 10 years	689,993	693,440
Amortized Cost	3,303,594	3,260,428
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	178,416	166,887
Fair Value, 1-5 years	953,776	933,903
Fair Value, 6-10 years	1,493,797	1,464,583
Fair Value, Over 10 years	691,165	684,684
Available-for-sale and other securities	3,317,154	3,250,057
Asset-backed securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	0	0
Amortized Cost, 1-5 years	88,216	80,700
Amortized Cost, 6-10 years	168,634	223,352
Amortized Cost, Over 10 years	537,534	520,072
Amortized Cost	794,384	824,124
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	88,681	80,560
Fair Value, 6-10 years	170,102	224,565
Fair Value, Over 10 years	508,154	488,356
Available-for-sale and other securities	766,937	793,481
Corporate debt
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	59,021	43,223
Amortized Cost, 1-5 years	64,529	78,430
Amortized Cost, 6-10 years	34,681	32,523
Amortized Cost, Over 10 years	36,098	40,361
Amortized Cost	194,329	194,537
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	59,429	43,603
Fair Value, 1-5 years	66,027	80,196
Fair Value, 6-10 years	35,362	32,865
Fair Value, Over 10 years	37,863	42,019
Available-for-sale and other securities	198,681	198,683
Other securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost, Under 1 year	1,652	1,650
Amortized Cost, 1-5 years	2,300	2,302
Amortized Cost, 6-10 years	0	0
Amortized Cost, Over 10 years	46	10
Amortized Cost	571,818	567,813
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	1,652	1,650
Fair Value, 1-5 years	2,275	2,283
Fair Value, 6-10 years	0	0
Fair Value, Over 10 years	46	10
Available-for-sale and other securities	572,233	568,235
Nonmarketable equity securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost	552,628	547,704
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale and other securities	552,628	547,704
Mutual funds
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost	14,331	15,286
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale and other securities	14,331	15,286
Marketable equity securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized Cost	861	861
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale and other securities	$ 1,301	$ 1,302

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 16,375,549	$ 15,776,855
Unrealized Gross Gains	57,957	47,626
Unrealized Gross Losses	(259,901)	(261,644)
Fair Value	16,173,605	15,562,837
U.S. Treasury
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,881	5,480
Unrealized Gross Gains	9	17
Unrealized Gross Losses	0	0
Fair Value	6,890	5,497
Federal agencies: Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,415,013	10,851,461
Unrealized Gross Gains	10,882	12,548
Unrealized Gross Losses	(204,028)	(190,667)
Fair Value	11,221,867	10,673,342
Federal agencies, Other agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	89,530	73,012
Unrealized Gross Gains	356	536
Unrealized Gross Losses	(43)	(6)
Fair Value	89,843	73,542
Total U.S. Treasury, Federal agency securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,511,424	10,929,953
Unrealized Gross Gains	11,247	13,101
Unrealized Gross Losses	(204,071)	(190,673)
Fair Value	11,318,600	10,752,381
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,303,594	3,260,428
Unrealized Gross Gains	39,687	28,431
Unrealized Gross Losses	(26,127)	(38,802)
Fair Value	3,317,154	3,250,057
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	794,384	824,124
Unrealized Gross Gains	2,225	1,492
Unrealized Gross Losses	(29,672)	(32,135)
Fair Value	766,937	793,481
Corporate debt
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	194,329	194,537
Unrealized Gross Gains	4,357	4,161
Unrealized Gross Losses	(5)	(15)
Fair Value	198,681	198,683
Other securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	571,818	567,813
Unrealized Gross Gains	441	441
Unrealized Gross Losses	(26)	(19)
Fair Value	$ 572,233	$ 568,235

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AVAILABLE-FOR-SALE AND OTHER SECURITIES AVAILABLE-FOR-SALE AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value
Less than 12 Months	$ 10,993,676	$ 10,687,088
Over 12 Months	501,386	494,614
Total	11,495,062	11,181,702
Unrealized Losses
Less than 12 Months	(224,766)	(221,568)
Over 12 Months	(35,135)	(40,076)
Total	(259,901)	(261,644)
Federal agencies: Mortgage-backed securities
Fair Value
Less than 12 Months	9,846,004	8,908,470
Over 12 Months	40,432	41,706
Total	9,886,436	8,950,176
Unrealized Losses
Less than 12 Months	(202,610)	(189,318)
Over 12 Months	(1,418)	(1,349)
Total	(204,028)	(190,667)
Federal agencies, Other agencies
Fair Value
Less than 12 Months	25,475	924
Over 12 Months	0	0
Total	25,475	924
Unrealized Losses
Less than 12 Months	(43)	(6)
Over 12 Months	0	0
Total	(43)	(6)
Total U.S. Treasury, Federal agency securities
Fair Value
Less than 12 Months	9,871,479	8,909,394
Over 12 Months	40,432	41,706
Total	9,911,911	8,951,100
Unrealized Losses
Less than 12 Months	(202,653)	(189,324)
Over 12 Months	(1,418)	(1,349)
Total	(204,071)	(190,673)
Municipal securities
Fair Value
Less than 12 Months	859,848	1,412,152
Over 12 Months	257,829	272,292
Total	1,117,677	1,684,444
Unrealized Losses
Less than 12 Months	(19,825)	(29,175)
Over 12 Months	(6,302)	(9,627)
Total	(26,127)	(38,802)
Asset-backed securities
Fair Value
Less than 12 Months	260,870	361,185
Over 12 Months	201,436	178,924
Total	462,306	540,109
Unrealized Losses
Less than 12 Months	(2,268)	(3,043)
Over 12 Months	(27,404)	(29,092)
Total	(29,672)	(32,135)
Corporate debt
Fair Value
Less than 12 Months	694	3,567
Over 12 Months	200	200
Total	894	3,767
Unrealized Losses
Less than 12 Months	(5)	(15)
Over 12 Months	0	0
Total	(5)	(15)
Other securities
Fair Value
Less than 12 Months	785	790
Over 12 Months	1,489	1,492
Total	2,274	2,282
Unrealized Losses
Less than 12 Months	(15)	(11)
Over 12 Months	(11)	(8)
Total	$ (26)	$ (19)

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AVAILABLE-FOR-SALE AND OTHER SECURITIES AVAILABLE-FOR-SALE AND OTHER SECURITIES - Gross Realized Gains (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Gross gains on sales of securities	$ 545	$ 0
Gross (losses) on sales of securities	553	0
Net gain on sales of securities	$ (8)	$ 0

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Collateralized Debt Obligation (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Unrealized Gross Losses	$ (259,901)	$ (261,644)
Pooled Trust Preferred
Schedule of Available-for-sale Securities [Line Items]
Par Value	109,667	137,197
Amortized Cost	81,526	101,210
Fair Value	59,492	76,003
Unrealized Gross Losses	(22,034)	$ (25,207)
Pooled Trust Preferred | ICONS
Schedule of Available-for-sale Securities [Line Items]
Par Value	18,594
Amortized Cost	18,594
Fair Value	15,416
Unrealized Gross Losses	$ (3,178)
Actual Deferrals and Defaults as Percent of Original Collateral	7.00%
Expected Defaults as Percent of Remaining Performing Collateral	13.00%
Excess Subordination	55.00%
Pooled Trust Preferred | MM Comm III
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 4,573
Amortized Cost	4,369
Fair Value	3,625
Unrealized Gross Losses	$ (744)
Actual Deferrals and Defaults as Percent of Original Collateral	5.00%
Expected Defaults as Percent of Remaining Performing Collateral	6.00%
Excess Subordination	39.00%
Pooled Trust Preferred | Pre TSL IX
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 5,000
Amortized Cost	3,955
Fair Value	3,285
Unrealized Gross Losses	$ (670)
Actual Deferrals and Defaults as Percent of Original Collateral	16.00%
Expected Defaults as Percent of Remaining Performing Collateral	8.00%
Excess Subordination	10.00%
Pooled Trust Preferred | Pre TSL XI
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 25,000
Amortized Cost	19,413
Fair Value	15,923
Unrealized Gross Losses	$ (3,490)
Actual Deferrals and Defaults as Percent of Original Collateral	14.00%
Expected Defaults as Percent of Remaining Performing Collateral	8.00%
Excess Subordination	14.00%
Pooled Trust Preferred | Reg Diversified
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 25,500
Amortized Cost	4,195
Fair Value	1,832
Unrealized Gross Losses	$ (2,363)
Actual Deferrals and Defaults as Percent of Original Collateral	33.00%
Expected Defaults as Percent of Remaining Performing Collateral	8.00%
Excess Subordination	0.00%
Pooled Trust Preferred | Tropic III
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 31,000
Amortized Cost	31,000
Fair Value	19,411
Unrealized Gross Losses	$ (11,589)
Actual Deferrals and Defaults as Percent of Original Collateral	16.00%
Expected Defaults as Percent of Remaining Performing Collateral	7.00%
Excess Subordination	42.00%

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AVAILABLE-FOR-SALE AND OTHER SECURITIES AVAILABLE-FOR-SALE AND OTHER SECURITIES - Security Impairment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	$ 24	$ 0
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance, beginning of year	11,796	18,368
Reductions from sales	(4,558)	0
Additional credit losses	24	0
Balance, end of year	7,262	18,368
Trust Preferred Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	0	0
Fixed Income Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	$ 24	$ 0

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HELD-TO-MATURITY SECURITIES - Narrative (Details)	3 Months Ended
	Mar. 31, 2017 USD ($)
Held-to-maturity Securities [Abstract]
Other than temporary impairment losses, held-to-maturity securities	$ 0

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HELD-TO-MATURITY SECURITIES - Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized Cost	$ 7,533,517	$ 7,806,939
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value	7,502,102	7,787,268
Federal agencies: Mortgage-backed securities
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held-to-maturity Securities, Under 1 year	0	0
Held-to-maturity Securities, 1-5 years	0	0
Held-to-maturity Securities, 6-10 years	59,710	41,261
Held-to-maturity Securities, Over 10 years	6,887,466	7,157,083
Amortized Cost	6,947,176	7,198,344
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	0	0
Fair Value, 6-10 years	59,420	40,791
Fair Value, Over 10 years	6,857,540	7,139,943
Fair Value	6,916,960	7,180,734
Federal agencies, Other agencies
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held-to-maturity Securities, Under 1 year	0	0
Held-to-maturity Securities, 1-5 years	0	0
Held-to-maturity Securities, 6-10 years	382,617	398,341
Held-to-maturity Securities, Over 10 years	197,714	204,083
Amortized Cost	580,331	602,424
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	0	0
Fair Value, 6-10 years	383,290	399,452
Fair Value, Over 10 years	195,990	201,180
Fair Value	579,280	600,632
Total U.S. Treasury, Federal agency securities
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Amortized Cost	7,527,507	7,800,768
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value	7,496,240	7,781,366
Municipal securities
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held-to-maturity Securities, Under 1 year	0	0
Held-to-maturity Securities, 1-5 years	0	0
Held-to-maturity Securities, 6-10 years	0	0
Held-to-maturity Securities, Over 10 years	6,010	6,171
Amortized Cost	6,010	6,171
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	0	0
Fair Value, 6-10 years	0	0
Fair Value, Over 10 years	5,862	5,902
Fair Value	$ 5,862	$ 5,902

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HELD-TO-MATURITY SECURITIES - Amortized Cost, Gross Unrealized Gains and Losses, & Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 7,533,517	$ 7,806,939
Unrealized Gross Gains	13,420	22,573
Unrealized Gross Losses	(44,835)	(42,244)
Fair Value	7,502,102	7,787,268
Federal agencies: Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	6,947,176	7,198,344
Unrealized Gross Gains	11,534	20,883
Unrealized Gross Losses	(41,750)	(38,493)
Fair Value	6,916,960	7,180,734
Federal agencies, Other agencies
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	580,331	602,424
Unrealized Gross Gains	1,886	1,690
Unrealized Gross Losses	(2,937)	(3,482)
Fair Value	579,280	600,632
Total U.S. Treasury, Federal agency securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	7,527,507	7,800,768
Unrealized Gross Gains	13,420	22,573
Unrealized Gross Losses	(44,687)	(41,975)
Fair Value	7,496,240	7,781,366
Municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	6,010	6,171
Unrealized Gross Gains	0	0
Unrealized Gross Losses	(148)	(269)
Fair Value	$ 5,862	$ 5,902

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HELD-TO-MATURITY SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value
Less than 12 Months	$ 5,271,613	$ 3,274,469
Over 12 Months	169,422	186,226
Total	5,441,035	3,460,695
Unrealized Losses
Less than 12 Months	(38,592)	(35,221)
Over 12 Months	(6,243)	(7,023)
Total	(44,835)	(42,244)
Federal agencies: Mortgage-backed securities
Fair Value
Less than 12 Months	4,852,958	2,855,360
Over 12 Months	169,422	186,226
Total	5,022,380	3,041,586
Unrealized Losses
Less than 12 Months	(35,507)	(31,470)
Over 12 Months	(6,243)	(7,023)
Total	(41,750)	(38,493)
Federal agencies, Other agencies
Fair Value
Less than 12 Months	412,793	413,207
Over 12 Months	0	0
Total	412,793	413,207
Unrealized Losses
Less than 12 Months	(2,937)	(3,482)
Over 12 Months	0	0
Total	(2,937)	(3,482)
Total U.S. Treasury, Federal agency securities
Fair Value
Less than 12 Months	5,265,751	3,268,567
Over 12 Months	169,422	186,226
Total	5,435,173	3,454,793
Unrealized Losses
Less than 12 Months	(38,444)	(34,952)
Over 12 Months	(6,243)	(7,023)
Total	(44,687)	(41,975)
Municipal securities
Fair Value
Less than 12 Months	5,862	5,902
Over 12 Months	0	0
Total	5,862	5,902
Unrealized Losses
Less than 12 Months	(148)	(269)
Over 12 Months	0	0
Total	$ (148)	$ (269)

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LOAN SALES AND SECURITIZATIONS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Residential Mortgage
Servicing Assets at Fair Value [Line Items]
Servicing income	$ 14	$ 12
Unpaid principal balance of third party serviced loans	19,100		$ 18,900
Automobile
Servicing Assets at Fair Value [Line Items]
Servicing income	5	3
Unpaid principal balance of third party serviced loans	1,500		1,700
Small Business Association (SBA) Loan
Servicing Assets at Fair Value [Line Items]
Servicing income	3	$ 2
Unpaid principal balance of third party serviced loans	$ 1,200		$ 1,100

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio (Details) - Residential Mortgage - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Servicing Asset at Amortized Cost [Line Items]
Loans sold with servicing retained	$ 845,415	$ 632,466
Pretax gains resulting from above loan sales	$ 22,190	$ 14,113

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method (Details) - Residential Mortgage - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Servicing Asset at Fair Value, Amount [Roll Forward]
Fair value, beginning of period	$ 13,747	$ 17,585
Time decay	(231)	(273)
Payoffs	(364)	(504)
Changes in valuation inputs or assumptions	155	(1,989)
Fair value, end of period:	$ 13,307	$ 14,819
Fair value method
Servicing Asset at Fair Value, Amount [Roll Forward]
Weighted-average life (years)	5 years 7 months	5 years 2 months

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Amortization Method (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of period	$ 227,678		$ 225,578
Residential Mortgage
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of period	172,466	$ 143,133
New servicing assets created	9,635	6,109
Impairment (charge) / recovery	1,800	(16,340)
Amortization and other	(6,089)	(5,627)
Carrying value, end of period	177,812	127,275
Fair value, end of period	$ 178,581	$ 127,516
Residential Mortgage | Amortization method
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Weighted-average life (years)	7 years 1 month	6 years 6 months

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LOAN SALES AND SECURITIZATIONS LOAN SALES AND SECURTIZIATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method Key Assumptions (Details) - Fair value method - Residential Mortgage - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Assets at Fair Value [Line Items]
Constant prepayment rate (annualized), actual	11.90%	10.90%
Constant prepayment rate (annualized), 10% adverse change	$ (522)		$ (501)
Constant prepayment rate (annualized), 20% adverse change	$ (1,007)		(970)
Spread over forward interest rate swap rates, actual	8.39%	5.36%
Spread over forward interest rate swap rates, 10% adverse change	$ (411)		(454)
Spread over forward interest rate swap rates, 20% adverse change	$ (798)		$ (879)

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Amortization Method Key Assumptions (Details) - Amortization method - Residential Mortgage - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost [Line Items]
Constant prepayment rate (annualized), actual	8.10%	7.80%
Constant prepayment rate (annualized), 10% adverse change	$ (4,756)		$ (4,510)
Constant prepayment rate (annualized), 20% adverse change	$ (9,242)		(8,763)
Spread over forward interest rate swap rates, actual	10.64%	11.73%
Spread over forward interest rate swap rates, 10% adverse change	$ (5,518)		(5,259)
Spread over forward interest rate swap rates, 20% adverse change	$ (10,692)		$ (10,195)

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LOAN SALES AND SECURITIZATIONS - Automobile Loans, MSRs Amortization Method (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of period	$ 227,678		$ 225,578
Automobile
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of period	18,285	$ 8,771
New servicing assets created	0	0
Amortization and other	(3,126)	(1,742)
Fair value, end of period	15,278	7,250
Carrying value, end of period	$ 15,159	$ 7,029
Automobile | Amortization method
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Weighted-average life (years)	4 years	3 years 4 months

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LOAN SALES AND SECURITIZATIONS - Automobile Loans, MSRs Amortizations Method Key Assumptions (Details) - Amortization method - Automobile - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost [Line Items]
Constant prepayment rate (annualized), actual	19.95%	19.98%
Constant prepayment rate (annualized), 10% adverse change	$ (877)		$ (1,047)
Constant prepayment rate (annualized), 20% adverse change	$ (1,695)		(2,026)
Spread over forward interest rate swap rates, actual	5.00%	5.00%
Spread over forward interest rate swap rates, 10% adverse change	$ (22)		(26)
Spread over forward interest rate swap rates, 20% adverse change	$ (45)		$ (53)

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LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio (Details) - Small Business Association (SBA) Loan - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Transfer of Financial Assets Accounted for as Sales [Line Items]
Loans with servicing retained sold	$ 77,672	$ 45,889
Pretax gains resulting from above loan sales	$ 5,818	$ 3,521

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LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio, MSRs Amortization Method (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of period	$ 227,678		$ 225,578
Small Business Association (SBA) Loan
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of period	21,080	$ 19,747
New servicing assets created	1,475	1,511
Amortization and other	(1,156)	(1,733)
Carrying value, end of period	21,399	19,525
Fair value, end of period	$ 25,857	$ 23,048
Weighted-average life (years)	3 years 3 months 18 days	3 years 4 months

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LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio, MSRs Amortization Method Key Assumptions (Details) - Small Business Association (SBA) Loan - Amortization method - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Servicing Asset at Amortized Cost [Line Items]
Constant prepayment rate (annualized), actual	7.40%	7.40%
Constant prepayment rate (annualized), 10% adverse change	$ (346)		$ (324)
Constant prepayment rate (annualized), 20% adverse change	$ (687)		(644)
Spread over forward interest rate swap rates, actual	15.00%	15.00%
Spread over forward interest rate swap rates, 10% adverse change	$ (696)		(1,270)
Spread over forward interest rate swap rates, 20% adverse change	$ (1,363)		$ (1,870)

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LONG-TERM DEBT (Details) - Senior Notes - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 07, 2017
Huntington National Bank Senior Note Due March 2020, 2.375 Percent [Member]
Debt Instrument [Line Items]
Debt face amount		$ 700,000,000.0
Debt percent of value		99.994%
Debt stated interest rate		2.375%
Debt Instrument, Redemption Price, Percentage	100.00%
Huntington National Bank Senior Floating Rate Notes Due March 2020 [Member]
Debt Instrument [Line Items]
Debt face amount		$ 300,000,000.0
Debt percent of value		100.00%
Debt Instrument, Description of Variable Rate Basis	three month LIBOR
Debt Instrument, Basis Spread on Variable Rate	51.00%

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OTHER COMPREHENSIVE INCOME - Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Pretax
Other comprehensive income (loss), pretax	$ 15,117	$ 91,352
Tax (Expense) Benefit
Total other comprehensive income (loss), tax (expense) benefit	(4,961)	(32,480)
After-tax
Other comprehensive income (loss), net of tax	10,156	58,872
Accumulated OTTI
Pretax
Other comprehensive income (loss), pretax	810	(3,634)
Tax (Expense) Benefit
Total other comprehensive income (loss), tax (expense) benefit	(286)	1,285
After-tax
Other comprehensive income (loss), net of tax	524	(2,349)
Unrealized gains and (losses) on debt securities | Debt Securities
Pretax
Other comprehensive income (loss), before reclassifications, before tax	8,996	80,468
Reclassification adjustment, before tax	5,874	(464)
Tax (Expense) Benefit
Other comprehensive income (loss) before reclassifications, tax	(2,795)	(28,685)
Reclassification adjustment, tax	(2,077)	164
After-tax
Other comprehensive income (loss), before reclassifications, net of tax	6,201	51,783
Reclassification adjustment, net of tax	3,797	(300)
Unrealized gains and (losses) on debt securities and Accumulated OTTI | Debt Securities
Pretax
Other comprehensive income (loss), pretax	15,680	76,370
Tax (Expense) Benefit
Total other comprehensive income (loss), tax (expense) benefit	(5,158)	(27,236)
After-tax
Other comprehensive income (loss), net of tax	10,522	49,134
Unrealized gains and (losses) on debt securities and Accumulated OTTI | Equity Securities
Pretax
Other comprehensive income (loss), pretax	0	104
Tax (Expense) Benefit
Total other comprehensive income (loss), tax (expense) benefit	0	(36)
After-tax
Other comprehensive income (loss), net of tax	0	68
Unrealized gains and (losses) on cash flow hedging derivatives
Pretax
Other comprehensive income (loss), before reclassifications, before tax	(1,831)	14,229
Reclassification adjustment, before tax	560	(644)
Other comprehensive income (loss), pretax	(1,271)	13,585
Tax (Expense) Benefit
Other comprehensive income (loss) before reclassifications, tax	641	(4,980)
Reclassification adjustment, tax	(196)	224
Total other comprehensive income (loss), tax (expense) benefit	445	(4,756)
After-tax
Other comprehensive income (loss), before reclassifications, net of tax	(1,190)	9,249
Reclassification adjustment, net of tax	364	(420)
Other comprehensive income (loss), net of tax	(826)	8,829
Unrealized gains (losses) for pension and other post- retirement obligations
Pretax
Other comprehensive income (loss), pretax	708	1,293
Tax (Expense) Benefit
Total other comprehensive income (loss), tax (expense) benefit	(248)	(452)
After-tax
Other comprehensive income (loss), net of tax	$ 460	$ 841

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OTHER COMPREHENSIVE INCOME OTHER COMPREHENSIVE INCOME - AOCI Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 10,308,146	$ 6,594,606
Other comprehensive income before reclassifications	5,535	58,751
Amounts reclassified from accumulated OCI to earnings	4,621	121
Period change		58,872
Balance, end of period	10,437,147	7,157,670
Unrealized gains and (losses) on debt securities | Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(192,764)	8,361
Other comprehensive income before reclassifications	6,725	49,434
Amounts reclassified from accumulated OCI to earnings	3,797	(300)
Period change	10,522	49,134
Balance, end of period	(182,242)	57,495
Unrealized gains and (losses) on debt securities | Equity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	287	176
Other comprehensive income before reclassifications	0	68
Amounts reclassified from accumulated OCI to earnings	0	0
Period change	0	68
Balance, end of period	287	244
Unrealized gains and (losses) on cash flow hedging derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(2,634)	(3,948)
Other comprehensive income before reclassifications	(1,190)	9,249
Amounts reclassified from accumulated OCI to earnings	364	(420)
Period change	(826)	8,829
Balance, end of period	(3,460)	4,881
Unrealized gains (losses) for pension and other post- retirement obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(205,905)	(230,747)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from accumulated OCI to earnings	460	841
Period change	460	841
Balance, end of period	(205,445)	(229,906)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(401,016)	(226,158)
Period change	10,156
Balance, end of period	(390,860)	(167,286)
Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net unrealized loss on securities transfer	$ (81,000)	$ (82,000)

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OTHER COMPREHENSIVE INCOME - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest income - held-to-maturity securities - taxable	$ 45,195	$ 36,789
Noninterest income - net gains (losses) on sale of securities	16	0
Interest income - loans and leases	675,934	463,422
Noninterest income - other income	40,735	30,132
Noninterest expense - personnel costs	(382,000)	(285,397)
Income before income taxes	267,378	226,271
Provision for income taxes	(59,284)	(54,957)
Net income applicable to common shares	189,216	163,316
Unrealized gains and (losses) on debt securities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest income - held-to-maturity securities - taxable	(3,606)	464
Noninterest income - net gains (losses) on sale of securities	(2,244)	0
Accumulated OTTI | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Noninterest income - net gains (losses) on sale of securities	(24)	0
Unrealized gains and (losses) on debt securities and Accumulated OTTI | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(5,874)	464
Provision for income taxes	2,077	(164)
Net income applicable to common shares	(3,797)	300
Unrealized gains and (losses) on cash flow hedging derivatives | Interest Rate Contract | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest income - loans and leases	(560)	645
Noninterest income - other income	0	(1)
Income before income taxes	(560)	644
Provision for income taxes	196	(224)
Net income applicable to common shares	(364)	420
Amortization of defined benefit pension and post-retirement items: actuarial gains (losses) | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Noninterest expense - personnel costs	(1,200)	(1,785)
Amortization of defined benefit pension and post-retirement items: Prior service credit | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Noninterest expense - personnel costs	492	492
Unrealized gains (losses) for pension and other post- retirement obligations | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(708)	(1,293)
Provision for income taxes	248	452
Net income applicable to common shares	$ (460)	$ (841)

XML

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Basic earnings per common share:
Net income	$ 208,094	$ 171,314
Preferred stock dividends	(18,878)	(7,998)
Net income available to common shareholders	189,216	163,316
Effect of assumed preferred stock conversion	0	0
Net income applicable to diluted earnings per share	$ 189,216	$ 163,316
Average common shares issued and outstanding (in shares)	1,086,374	795,755
Basic earnings per common share (in usd per share)	$ 0.17	$ 0.21
Dilutive potential common shares:
Stock options and restricted stock units and awards	19,139	10,385
Shares held in deferred compensation plans	2,953	2,075
Other	151	134
Dilutive potential common shares:	22,243	12,594
Total diluted average common shares issued and outstanding (in shares)	1,108,617	808,349
Diluted earnings per common share (in usd per share)	$ 0.17	$ 0.20
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding to purchase common stock shares having antidilutive effect	900	3,500

XML

BENEFIT PLANS - Narrative (Details)	3 Months Ended
	Mar. 31, 2017 year
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Match - Base pay contributed to the plan	matches participant contributions, up to the first 4%
Base Pay Contributed To Plan Profit Sharing	profit-sharing contribution equal to 1% of eligible participants’ 2016
Post Retirement Benefits
Benefit Plans (Textuals) [Abstract]
Employees retirement age for health care and life insurance benefits under unfunded defined benefit post-retirement plan	55
Deferred Compensation Arrangement With Individual Requisite Service Period	10 years

XML

BENEFIT PLANS - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Pension Benefits
Components of net periodic benefit expense [Abstract]
Service cost	$ 640	$ 1,025
Interest cost	7,477	6,748
Expected return on plan assets	(13,803)	(10,223)
Amortization of prior service cost	0	0
Amortization of gains (losses)	1,747	1,864
Settlements	2,500	3,400
Net periodic (benefit) cost	(1,439)	2,814
Post Retirement Benefits
Components of net periodic benefit expense [Abstract]
Service cost	22	0
Interest cost	99	55
Expected return on plan assets	0	0
Amortization of prior service cost	(492)	(492)
Amortization of gains (losses)	(55)	(72)
Settlements	0	0
Net periodic (benefit) cost	$ (426)	$ (509)

XML

BENEFIT PLANS - Costs of Retirement Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Cost Recognized	$ 11	$ 8

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FAIR VALUES OF ASSETS AND LIABILITIES - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 423,324	$ 438,224
Mortgages Held-to-maturity, Fair Value Disclosure	98,342	82,319
Fair Value Measured On Recurring Basis Mortgages Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held For Sale Unpaid Principal	408,424	433,760
Difference	14,900	4,464
Loans held for investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Difference	(11,892)	(9,679)
Mortgages Held-to-maturity, Fair Value Disclosure	98,342	82,319
Mortgages Held To Maturity Unpaid Principal	110,234	91,998
90 or more days | Fair Value Measured On Recurring Basis Mortgages Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgages Held For Sale Unpaid Principal	0	0
Difference	0	0
Loans held for sale	0	0
90 or more days | Loans held for investment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Difference	(2,935)	(2,674)
Mortgages Held-to-maturity, Fair Value Disclosure	8,572	8,408
Mortgages Held To Maturity Unpaid Principal	$ 11,507	$ 11,082

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FAIR VALUES OF ASSETS AND LIABILITIES - Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets measured at fair value on a recurring basis
Loans held for investment	$ 98,342	$ 82,319
Consumer loans	98,342	82,319
Trading account securities	97,785	133,295
Available-for-sale and other securities	16,173,605	15,562,837
U.S. Treasury
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	6,890	5,497
Federal agencies: Mortgage-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	11,221,867	10,673,342
Federal agencies, Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	89,843	73,542
Municipal securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	3,317,154	3,250,057
Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,681	198,683
Recurring Basis
Assets measured at fair value on a recurring basis
Loans held for sale	423,324	438,224
Trading account securities	97,785	133,295
Available-for-sale and other securities	15,620,977	15,015,133
MSRs	13,307	13,747
Derivative assets netting	(173,603)	(181,940)
Net amounts of assets presented in the condensed consolidated balance sheets	178,420	238,219
Liabilities measured at fair value on a recurring basis
Gross amounts offset in the condensed consolidated balance sheets	(246,192)	(272,361)
Derivative liabilities	83,552	98,286
Short-term borrowings	1,420	474
Recurring Basis | U.S. Treasury
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	6,890	5,497
Recurring Basis | Federal agencies: Mortgage-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	11,221,867	10,673,342
Recurring Basis | Federal agencies, Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	89,843	73,542
Recurring Basis | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	3,434	1,148
Available-for-sale and other securities	3,317,154	3,250,057
Recurring Basis | Asset-backed Securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	766,937	793,481
Recurring Basis | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,681	198,683
Recurring Basis | Other Debt Obligations [Member]
Assets measured at fair value on a recurring basis
Trading account securities	94,351	132,147
Available-for-sale and other securities	19,605	20,531
Recurring Basis | Level 1
Assets measured at fair value on a recurring basis
Loans held for sale	0	0
Loans held for investment	0	0
Trading account securities	94,201	132,147
Available-for-sale and other securities	22,522	22,085
MSRs	0	0
Gross amounts of recognized assets	0	0
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	0	0
Short-term borrowings	1,420	474
Recurring Basis | Level 1 | U.S. Treasury
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	6,890	5,497
Recurring Basis | Level 1 | Federal agencies: Mortgage-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 1 | Federal agencies, Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 1 | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	0	0
Available-for-sale and other securities	0	0
Recurring Basis | Level 1 | Asset-backed Securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 1 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 1 | Other Debt Obligations [Member]
Assets measured at fair value on a recurring basis
Trading account securities	94,201	132,147
Available-for-sale and other securities	15,632	16,588
Recurring Basis | Level 2
Assets measured at fair value on a recurring basis
Loans held for sale	423,324	438,224
Loans held for investment	54,123	34,439
Trading account securities	3,584	1,148
Available-for-sale and other securities	12,671,311	12,119,001
MSRs	0	0
Gross amounts of recognized assets	342,584	414,412
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	322,999	362,777
Short-term borrowings	0	0
Recurring Basis | Level 2 | U.S. Treasury
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 2 | Federal agencies: Mortgage-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	11,221,867	10,673,342
Recurring Basis | Level 2 | Federal agencies, Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	89,843	73,542
Recurring Basis | Level 2 | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	3,434	1,148
Available-for-sale and other securities	449,502	452,013
Recurring Basis | Level 2 | Asset-backed Securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	707,445	717,478
Recurring Basis | Level 2 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,681	198,683
Recurring Basis | Level 2 | Other Debt Obligations [Member]
Assets measured at fair value on a recurring basis
Trading account securities	150	0
Available-for-sale and other securities	3,973	3,943
Recurring Basis | Level 3
Assets measured at fair value on a recurring basis
Loans held for sale	0	0
Consumer loans	44,219	47,880
Trading account securities	0	0
Available-for-sale and other securities	2,927,144	2,874,047
MSRs	13,307	13,747
Gross amounts of recognized assets	9,439	5,747
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	6,745	7,870
Short-term borrowings	0	0
Recurring Basis | Level 3 | U.S. Treasury
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 3 | Federal agencies: Mortgage-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 3 | Federal agencies, Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 3 | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	0	0
Available-for-sale and other securities	2,867,652	2,798,044
Recurring Basis | Level 3 | Asset-backed Securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	59,492	76,003
Recurring Basis | Level 3 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0	0
Recurring Basis | Level 3 | Other Debt Obligations [Member]
Assets measured at fair value on a recurring basis
Trading account securities	0	0
Available-for-sale and other securities	$ 0	$ 0

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FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net Derivative Instruments Level 3 Roll Forward:
Opening balance	$ (2,123)	$ 6,056
Transfers into Level 3	0	0
Transfers out of Level 3 (1)	(333)	(915)
Total gains/losses for the period:
Included in earnings	5,150	5,206
Included in OCI	0	0
Purchases/originations	0	0
Sales	0	0
Repayments	0	0
Issues	0	0
Settlements	0	0
Closing balance	2,694	10,347
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	5,150	5,306
MSRs
Assets Level 3 Roll Forward:
Opening balance	13,747	17,585
Transfers into Level 3	0	0
Transfers out of Level 3 (1)	0	0
Total gains/losses for the period:
Included in earnings	(440)	(2,766)
Included in OCI	0	0
Purchases	0	0
Sales	0	0
Repayments	0	0
Issuances	0	0
Settlements	0	0
Closing balance	13,307	14,819
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	(440)	(2,766)
Municipal securities
Assets Level 3 Roll Forward:
Opening balance	2,798,044	2,095,551
Transfers into Level 3	0	0
Transfers out of Level 3 (1)	0	0
Total gains/losses for the period:
Included in earnings	(1,386)	0
Included in OCI	20,475	11,840
Purchases	132,666	237,450
Sales	0	0
Repayments	0	0
Issuances	0	0
Settlements	(82,147)	(63,098)
Closing balance	2,867,652	2,281,743
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	20,269	0
Asset-backed Securities
Assets Level 3 Roll Forward:
Opening balance	76,003	100,337
Transfers into Level 3	0	0
Transfers out of Level 3 (1)	0	0
Total gains/losses for the period:
Included in earnings	28	0
Included in OCI	3,172	(5,168)
Purchases	0	0
Sales	(19,133)	0
Repayments	0	0
Issuances	0	0
Settlements	(578)	(840)
Closing balance	59,492	94,329
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	1,212	0
Automobile
Assets Level 3 Roll Forward:
Opening balance	47,880	1,748
Transfers into Level 3	0	0
Transfers out of Level 3 (1)	0	0
Total gains/losses for the period:
Included in earnings	(63)	0
Included in OCI	0	0
Purchases	0	0
Sales	0	0
Repayments	(3,598)	(532)
Issuances	0	0
Settlements	0	0
Closing balance	44,219	1,216
Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date	$ 0	$ 0

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FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Classification of Gains/Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivative asset (liability), gain (loss) included in earnings	$ 5,150	$ 5,206
Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivative asset (liability), gain (loss) included in earnings	5,150	5,206
Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivative asset (liability), gain (loss) included in earnings	0	0
Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivative asset (liability), gain (loss) included in earnings	0	0
Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivative asset (liability), gain (loss) included in earnings	0	0
MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	(440)	(2,766)
MSRs | Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	(440)	(2,766)
MSRs | Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
MSRs | Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
MSRs | Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	(1,386)	0
Municipal securities | Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Municipal securities | Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	(1,386)	0
Municipal securities | Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Municipal securities | Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Asset-backed Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	28	0
Asset-backed Securities | Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Asset-backed Securities | Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	28	0
Asset-backed Securities | Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Asset-backed Securities | Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	(63)	0
Automobile | Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Automobile | Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Automobile | Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	0	0
Automobile | Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset, gain (loss) included in earnings	$ (63)	$ 0

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment	$ 98,342	$ 82,319
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, aggregate unpaid principal	408,424	433,760
Difference	14,900	4,464
Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment	98,342	82,319
Loans held for investment, aggregate unpaid principal	110,234	91,998
Difference	(11,892)	(9,679)
90 or more days | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, fair value carrying amount	0	0
Loans held for sale, aggregate unpaid principal	0	0
Difference	0	0
90 or more days | Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment	8,572	8,408
Loans held for investment, aggregate unpaid principal	11,507	11,082
Difference	$ (2,935)	$ (2,674)

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changs in Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gains (losses) from fair value changes	$ 9,076	$ 4,649
Consumer loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gains (losses) from fair value changes	(63)	0
Gains (losses) included in fair value changes associated with instrument specific credit risk	$ 0	$ 90

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Non-Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 9,279,140	$ 8,309,159
Held-to-maturity securities	7,533,517	7,806,939
Assets measured at fair value on a nonrecurring basis
Net loans and direct financing leases	66,425,689	66,323,583
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	9,419,853	8,387,444
Held-to-maturity securities	7,502,102	7,787,268
Assets measured at fair value on a nonrecurring basis
Net loans and direct financing leases	66,275,735	66,294,639
Level 1 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	0	0
Held-to-maturity securities	0	0
Assets measured at fair value on a nonrecurring basis
Net loans and direct financing leases	0	0
Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	9,013,768	7,980,176
Held-to-maturity securities	7,502,102	7,787,268
Assets measured at fair value on a nonrecurring basis
Net loans and direct financing leases	0	0
Level 3 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	406,085	407,268
Held-to-maturity securities	0	0
Assets measured at fair value on a nonrecurring basis
Net loans and direct financing leases	66,275,735	66,294,639
Nonrecurring Basis
Assets measured at fair value on a nonrecurring basis
Impaired loans		53,818
Nonrecurring Basis | Fair Value
Assets measured at fair value on a nonrecurring basis
MSRs	(176,747)
Impaired loans	52,367
Other real estate owned	(49,887)
Nonrecurring Basis | Total Gains/(Losses)
Assets measured at fair value on a nonrecurring basis
MSRs	1,800
Impaired loans	5,267
Other real estate owned	2,363
Nonrecurring Basis | Level 1 | Fair Value
Assets measured at fair value on a nonrecurring basis
MSRs	0
Impaired loans	0
Other real estate owned	0
Nonrecurring Basis | Level 2 | Fair Value
Assets measured at fair value on a nonrecurring basis
MSRs	0
Impaired loans	0
Other real estate owned	0
Nonrecurring Basis | Level 3
Assets measured at fair value on a nonrecurring basis
MSRs		$ (171,309)
Nonrecurring Basis | Level 3 | Fair Value
Assets measured at fair value on a nonrecurring basis
MSRs	(176,747)
Impaired loans	52,367
Other real estate owned	$ (49,887)

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Significant Unobservable Level 3 Inputs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	$ 16,173,605		$ 15,562,837
Consumer loans	98,342		82,319
Fair Value, Measurements, Recurring
Fair Value Disclosures [Abstract]
MSRs	13,307		13,747
Available-for-sale and other securities	15,620,977		15,015,133
Fair Value, Measurements, Recurring | Level 3
Fair Value Disclosures [Abstract]
MSRs	13,307		13,747
Gross amounts of recognized assets	9,439		5,747
Gross amounts of recognized liabilities	6,745		7,870
Available-for-sale and other securities	2,927,144		2,874,047
Consumer loans	44,219		47,880
Fair Value, Measurements, Nonrecurring
Fair Value Disclosures [Abstract]
Impaired loans Fair Value Disclosure			53,818
Accrued income and other assets Fair Value Disclosure			50,930
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value Disclosures [Abstract]
MSRs			171,309
Asset-backed Securities | Fair Value, Measurements, Recurring
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	766,937		793,481
Asset-backed Securities | Fair Value, Measurements, Recurring | Level 3
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	59,492		76,003
Municipal securities
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	3,317,154		3,250,057
Municipal securities | Fair Value, Measurements, Recurring
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	3,317,154		3,250,057
Municipal securities | Fair Value, Measurements, Recurring | Level 3
Fair Value Disclosures [Abstract]
Available-for-sale and other securities	$ 2,867,652		$ 2,798,044
Cost Approach Valuation Technique | Maximum | Fair Value, Measurements, Recurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	30.00%	34.40%
Spread over forward interest rate swap rates	0.1	0.092
Cost Approach Valuation Technique | Maximum | Fair Value, Measurements, Recurring | Private label CMO | Level 3
Fair Value Disclosures [Abstract]
Discount rate	10.30%	10.00%
Cumulative default	38.40%	37.80%
Loss given default	90.00%	80.00%
Cost Approach Valuation Technique | Maximum | Fair Value, Measurements, Recurring | Asset-backed Securities | Level 3
Fair Value Disclosures [Abstract]
Discount rate	12.10%	12.00%
Cumulative prepayment rate	73.00%	73.00%
Cumulative default	100.00%	100.00%
Loss given default	100.00%	100.00%
Cure given deferral	75.00%	75.00%
Cost Approach Valuation Technique | Maximum | Fair Value, Measurements, Recurring | Loans held for investment | Level 3
Fair Value Disclosures [Abstract]
Discount rate	16.80%	16.20%
Cost Approach Valuation Technique | Maximum | Fair Value, Measurements, Nonrecurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	21.20%	30.40%
Spread over forward interest rate swap rates	0.2	0.2
Cost Approach Valuation Technique | Minimum | Fair Value, Measurements, Recurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	8.00%	5.63%
Spread over forward interest rate swap rates	0.030	0.030
Cost Approach Valuation Technique | Minimum | Fair Value, Measurements, Recurring | Private label CMO | Level 3
Fair Value Disclosures [Abstract]
Discount rate	0.00%	0.00%
Cumulative default	0.00%	0.30%
Loss given default	5.00%	5.00%
Cost Approach Valuation Technique | Minimum | Fair Value, Measurements, Recurring | Asset-backed Securities | Level 3
Fair Value Disclosures [Abstract]
Discount rate	5.10%	5.00%
Cumulative prepayment rate	0.00%	0.00%
Cumulative default	0.90%	1.10%
Loss given default	85.00%	85.00%
Cure given deferral	0.00%	0.00%
Cost Approach Valuation Technique | Minimum | Fair Value, Measurements, Recurring | Loans held for investment | Level 3
Fair Value Disclosures [Abstract]
Discount rate	5.40%	5.40%
Cost Approach Valuation Technique | Minimum | Fair Value, Measurements, Nonrecurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	6.30%	5.57%
Spread over forward interest rate swap rates	0.03	0.042
Cost Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Recurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	12.00%	10.90%
Spread over forward interest rate swap rates	0.084	0.054
Cost Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Recurring | Private label CMO | Level 3
Fair Value Disclosures [Abstract]
Discount rate	3.70%	3.60%
Cumulative default	3.10%	4.00%
Loss given default	24.00%	24.10%
Cost Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Recurring | Asset-backed Securities | Level 3
Fair Value Disclosures [Abstract]
Discount rate	6.40%	6.30%
Cumulative prepayment rate	6.50%	6.50%
Cumulative default	10.90%	11.20%
Loss given default	96.10%	96.30%
Cure given deferral	32.70%	36.20%
Cost Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Recurring | Loans held for investment | Level 3
Fair Value Disclosures [Abstract]
Discount rate	5.60%	5.60%
Cost Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Nonrecurring | MSRs | Level 3
Fair Value Disclosures [Abstract]
Constant prepayment rate	8.10%	7.80%
Spread over forward interest rate swap rates	0.106	0.117
Market Approach Valuation Technique | Maximum | Fair Value, Measurements, Recurring | Derivative Instruments | Level 3
Fair Value Disclosures [Abstract]
Net market price	26.70%	25.40%
Estimated Pull through %	99.00%	99.80%
Market Approach Valuation Technique | Minimum | Fair Value, Measurements, Recurring | Derivative Instruments | Level 3
Fair Value Disclosures [Abstract]
Net market price	(4.70%)	(7.10%)
Estimated Pull through %	9.00%	8.10%
Market Approach Valuation Technique | Weighted Average | Fair Value, Measurements, Recurring | Derivative Instruments | Level 3
Fair Value Disclosures [Abstract]
Net market price	2.00%	1.10%
Estimated Pull through %	78.00%	7.70%

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FAIR VALUES OF ASSETS AND LIABILITIES - Balance Sheet Location (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Financial Assets:
Trading account securities		$ 97,785	$ 133,295
Loans held for sale	[1]	518,238	512,951
Available-for-sale and other securities		16,173,605	15,562,837
Held-to-maturity securities, Total		7,533,517	7,806,939
Net loans and direct financing leases		66,425,689	66,323,583
Financial Liabilities:
Deposits		77,422,510	75,607,717
Short-term borrowings		1,263,430	3,692,654
Long-term borrowings		9,279,140	8,309,159
Fair Value
Financial Assets:
Cash and short-term assets		1,371,868	1,443,037
Trading account securities		97,785	133,295
Loans held for sale		522,121	515,640
Available-for-sale and other securities		16,173,605	15,562,837
Held-to-maturity securities, Total		7,502,102	7,787,268
Net loans and direct financing leases		66,275,735	66,294,639
Derivatives		178,420	238,219
Financial Liabilities:
Deposits		78,238,093	76,161,091
Short-term borrowings		1,263,430	3,692,654
Long-term borrowings		9,419,853	8,387,444
Derivatives		83,552	98,286
Fair Value | Level 1
Financial Assets:
Held-to-maturity securities, Total		0	0
Net loans and direct financing leases		0	0
Financial Liabilities:
Deposits		0	0
Short-term borrowings		1,420	474
Long-term borrowings		0	0
Fair Value | Level 2
Financial Assets:
Held-to-maturity securities, Total		7,502,102	7,787,268
Net loans and direct financing leases		0	0
Financial Liabilities:
Deposits		74,456,322	72,319,328
Short-term borrowings		0	0
Long-term borrowings		9,013,768	7,980,176
Fair Value | Level 3
Financial Assets:
Held-to-maturity securities, Total		0	0
Net loans and direct financing leases		66,275,735	66,294,639
Financial Liabilities:
Deposits		3,781,771	3,841,763
Short-term borrowings		1,262,010	3,692,180
Long-term borrowings		406,085	407,268
Reported Value Measurement
Financial Assets:
Cash and short-term assets		1,371,868	1,443,037
Trading account securities		97,785	133,295
Loans held for sale		518,238	512,951
Available-for-sale and other securities		16,173,605	15,562,837
Held-to-maturity securities, Total		7,533,517	7,806,939
Net loans and direct financing leases		66,425,689	66,323,583
Derivatives		178,420	238,219
Financial Liabilities:
Deposits		77,422,510	75,607,717
Short-term borrowings		1,263,430	3,692,654
Long-term borrowings		9,279,140	8,309,159
Derivatives		$ 83,552	$ 98,286

[1] Amounts represent loans for which Huntington has elected the fair value option.

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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) group	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Increase (decrease) to net interest income due to derivative adjustment	$ 10,000,000	$ 21,000,000
Gain (loss) to be reclassified during next 12 months, net	(3,000,000)
Purchase of interest rate caps and derivative financial instruments, notional value	10,725,000,000
Total notional amount corresponds to trading assets, fair value	1,000,000
Notional amount corresponds to trading liabilities, fair value (less than)	2,000,000
Credit risks from interest rate swaps used for trading purposes	$ 171,000,000		$ 196,000,000
Number of primary groups | group	2
Aggregate credit risk, net of collateral	$ 27,000,000		26,000,000
Investment securities and cash collateral pledged by Huntington	140,000,000
Investment securities and cash collateral pledged to Huntington	78,000,000
Swap
Derivative [Line Items]
Derivative Liability	6,000,000
Derivative used in trading activity
Derivative [Line Items]
Net derivative asset (liability)	81,000,000		80,000,000
Derivative financial instruments used by Huntington on behalf of customers including offsetting derivatives, notional value	21,000,000,000		21,000,000,000
Derivative used in Mortgage Banking Activities
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	200,000,000		300,000,000
Gains (losses) related to derivative instruments Included in total MSR	(1,000,000)	$ 12,000,000
Net derivative asset (liability)	6,261,000		16,295,000
Share Swap Economic Hedge
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value			20,000,000
Derivative, Fair Value, Net	10,000,000
Other Credit Derivatives
Derivative [Line Items]
Derivative Asset, Notional Amount	596,000,000		$ 582,000,000
Deposits
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	0
Fair Value Hedging
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	8,175,000,000
Fair Value Hedging | Deposits
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	0
Cash Flow Hedging
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	2,550,000,000
Cash Flow Hedging | Deposits
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value	$ 0

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DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Management (Details)	Mar. 31, 2017 USD ($)
Notional Disclosures [Abstract]
Derivative, Notional Amount	$ 10,725,000,000
Fair Value Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	8,175,000,000
Cash Flow Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	2,550,000,000
Loan
Notional Disclosures [Abstract]
Derivative, Notional Amount	2,550,000,000
Loan | Fair Value Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	0
Loan | Cash Flow Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	2,550,000,000
Subordinated notes
Notional Disclosures [Abstract]
Derivative, Notional Amount	950,000,000
Subordinated notes | Fair Value Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	950,000,000
Subordinated notes | Cash Flow Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	0
Other long-term debt
Notional Disclosures [Abstract]
Derivative, Notional Amount	7,225,000,000
Other long-term debt | Fair Value Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	7,225,000,000
Other long-term debt | Cash Flow Hedging
Notional Disclosures [Abstract]
Derivative, Notional Amount	$ 0

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DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Managemen Add Info (Details Add Info) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Additional information about the interest rate swaps used in companies Asset and Liability Management
Notional Value	$ 10,725,000
Average Maturity (years)	2 years 4 months
Fair Value	$ (68,461)
Weighted-Average Rate Receive	1.41%
Weighted-Average Rate Pay	1.06%
Asset conversion swaps - Receive Fixed - Generic
Additional information about the interest rate swaps used in companies Asset and Liability Management
Notional Value	$ 2,550,000
Average Maturity (years)	6 months
Fair Value	$ (4,371)
Weighted-Average Rate Receive	1.08%
Weighted-Average Rate Pay	1.19%
Liability conversion swaps - Receive Fixed - Generic
Additional information about the interest rate swaps used in companies Asset and Liability Management
Notional Value	$ 8,175,000
Average Maturity (years)	2 years 10 months
Fair Value	$ (64,090)
Weighted-Average Rate Receive	1.51%
Weighted-Average Rate Pay	1.02%

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DERIVATIVE FINANCIAL INSTRUMENTS - Hedging Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accrued income and other assets
Asset derivatives included in accrued income and other assets
Interest rate contracts designated as hedging instruments	$ 42,421	$ 46,440
Interest rate contracts not designated as hedging instruments	197,221	213,587
Foreign exchange contracts not designated as hedging instruments	18,431	23,265
Commodities contracts not designated as hedging instruments	73,996	108,026
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	10,081	9,775
Total contracts	342,150	401,093
Accrued expenses and other liabilities
Liability derivatives included in accrued expenses and other liabilities
Interest rate contracts designated as hedging instruments	110,882	99,996
Interest rate contracts not designated as hedging instruments	127,260	143,976
Foreign exchange contracts not designated as hedging instruments	17,285	19,576
Commodities contracts not designated as hedging instruments	70,705	104,328
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0		$ 0
Total contracts	$ 326,132	$ 367,876

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DERIVATIVE FINANCIAL INSTRUMENTS - Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flow Hedging
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	$ (1,190)	$ 9,249
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	(560)	644
Deposits | Interest expense deposits
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	0	(82)
Hedged Deposits | Interest expense deposits
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	0	72
Subordinated notes | Interest expense subordinated notes and other long term debt
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	(4,708)	6,804
Hedged Subordinated notes | Interest expense subordinated notes and other long term debt
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	5,403	(6,804)
Other long-term debt | Interest expense subordinated notes and other long term debt
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	(10,282)	61,032
Hedged Other long term debt | Interest expense subordinated notes and other long term debt
Increase or (decrease) to interest expense for derivatives designated as fair value hedges
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	8,535	(59,786)
Loan | Interest and fee income loans and leases | Cash Flow Hedging
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	(1,190)	9,249
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	(560)	645
Securities Investment | Interest and fee income investment securities | Cash Flow Hedging
Gains and (losses) recognized in other comprehensive income (loss) (OCI) for derivatives designated as effective cash flow hedges
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	0	0
Amount of gain or (loss) reclassified from accumulated OCI into earnings (effective portion)	$ 0	$ (1)

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DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value Hedges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Loan
Derivative Instruments, Gain (Loss) [Line Items]
Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as cash flow hedges	$ (103)	$ 421

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DERIVATIVE FINANCIAL INSTRUMENTS - Mortgage Banking Activities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative used in Mortgage Banking Activities
Derivative assets:
Total derivative assets	$ 9,873	$ 19,066
Derivative liabilities:
Total derivative liabilities	(3,612)	(2,771)
Net derivative asset (liability)	6,261	16,295
Interest rate lock agreements
Derivative assets:
Total derivative assets	9,439	5,747
Derivative liabilities:
Total derivative liabilities	(565)	(1,598)
Forward trades and options
Derivative assets:
Total derivative assets	434	13,319
Derivative liabilities:
Total derivative liabilities	$ (3,047)	$ (1,173)

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DERIVATIVE FINANCIAL INSTRUMENTS DERIVATIVE FINANCIAL INSTRUMENTS - Credit Derivatives (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Credit Derivatives [Line Items]
Credit Risk Derivative Assets, at Fair Value	$ 4	$ 3
Other Credit Derivatives
Credit Derivatives [Line Items]
Derivative Asset, Notional Amount	$ 596	$ 582

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DERIVATIVE FINANCIAL INSTRUMENTS - Offsetting Assets (Details) - Derivative Contract - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	$ 352,023	$ 420,159
Gross amounts offset in the condensed consolidated balance sheets	173,603	181,940
Net amounts of assets presented in the condensed consolidated balance sheets	178,420	238,219
Gross amounts not offset in the condensed consolidated balance sheets, Financial instruments	(20,393)	(34,328)
Gross amounts not offset in the condensed consolidated balance sheets, cash collateral received	(11,120)	(5,428)
Net amount	$ 146,907	$ 198,463

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DERIVATIVE FINANCIAL INSTRUMENTS - Offsetting Liabilities (Details) - Derivative Contract - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	$ 329,744	$ 370,647
Gross amounts offset in the condensed consolidated balance sheets	(246,192)	(272,361)
Derivative liabilities	83,552	98,286
Gross amounts not offset in the condensed consolidated balance sheets, Financial instruments	0	(7,550)
Gross amounts not offset in the condensed consolidated balance sheets, Cash collateral received	(21,427)	(23,943)
Net amount	$ 62,125	$ 66,793

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VIEs - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Jun. 30, 2015
Trust 2016 Unconsolidated [Member]
Variable Interest Entity [Line Items]
Total of automobile loans transferred in securitization transactions	$ 1,500
2015-1 Automobile Trust
Variable Interest Entity [Line Items]
Total of automobile loans transferred in securitization transactions		$ 750

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VIEs - Consolidated (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash	$ 1,308,813	$ 1,384,770
Net loans and leases	66,425,689	66,323,583
Accrued income and other assets	2,018,047	2,062,976
Total assets	100,045,506	99,714,097
Liabilities
Long-term borrowings	9,279,140	8,309,159
Accrued interest and other liabilities	1,643,279	1,796,421
Total liabilities	89,608,359	89,405,951
Equity
Total liabilities and shareholders’ equity	100,045,506	99,714,097
Trust 2016 Unconsolidated [Member]
Variable Interest Entity [Line Items]
Total Assets	12,435	14,770
Total Liabilities	0	0
Maximum Exposure to Loss	12,435	14,770
Huntington Technology Funding Trust Series 2014A
Assets
Cash	1,565	1,564
Net loans and leases	55,358	69,825
Accrued income and other assets	0	0
Total assets	56,923	71,389
Liabilities
Long-term borrowings	45,906	57,494
Accrued interest and other liabilities	0	0
Total liabilities	45,906	57,494
Equity
Beneficial interest owned by third party	11,017	13,895
Total liabilities and shareholders’ equity	56,923	71,389
Franklin 2009 Trust
Assets
Cash	0	0
Net loans and leases	0	0
Accrued income and other assets	275	281
Total assets	275	281
Liabilities
Long-term borrowings	0	0
Accrued interest and other liabilities	275	281
Total liabilities	275	281
Equity
Beneficial interest owned by third party	0	0
Total liabilities and shareholders’ equity	275	281
Consolidated Trusts
Assets
Cash	1,565	1,564
Net loans and leases	55,358	69,825
Accrued income and other assets	275	281
Total assets	57,198	71,670
Liabilities
Long-term borrowings	45,906	57,494
Accrued interest and other liabilities	275	281
Total liabilities	46,181	57,775
Equity
Beneficial interest owned by third party	11,017	13,895
Total liabilities and shareholders’ equity	$ 57,198	$ 71,670

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VIEs - Unconsolidated VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Trust 2016 Unconsolidated [Member]
Variable Interest Entity [Line Items]
Total Assets	$ 12,435	$ 14,770
Total Liabilities	0	0
Maximum Exposure to Loss	12,435	14,770
2015-1 Automobile Trust
Variable Interest Entity [Line Items]
Total Assets	2,698	2,227
Total Liabilities	0	0
Maximum Exposure to Loss	2,698	2,227
Trust Preferred Securities
Variable Interest Entity [Line Items]
Total Assets	13,919	13,919
Total Liabilities	252,560	252,552
Maximum Exposure to Loss	0	0
Low Income Housing Tax Credit Partnerships
Variable Interest Entity [Line Items]
Total Assets	559,819	576,880
Total Liabilities	279,270	292,721
Maximum Exposure to Loss	559,819	576,880
Other Investments
Variable Interest Entity [Line Items]
Total Assets	95,033	79,195
Total Liabilities	41,232	42,316
Maximum Exposure to Loss	95,033	79,195
Total
Variable Interest Entity [Line Items]
Total Assets	683,904	686,991
Total Liabilities	573,062	587,589
Maximum Exposure to Loss	$ 669,985	$ 673,072

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VIEs - Trust preferred Securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Summary of Outstanding Trust Preferred Securities
Principal amount of subordinated note/ debenture issued to trust	$ 252,560
Investment in unconsolidated subsidiary	$ 13,919
Summary of Outstanding Trust Preferred Securities (Textuals) [Abstract]
Maximum year to defer payment of interest on Debenture	5 years
Huntington Capital I
Summary of Outstanding Trust Preferred Securities
Interest rate on Trust Preferred Securities	1.74%
Principal amount of subordinated note/ debenture issued to trust	$ 69,730
Investment in unconsolidated subsidiary	$ 6,186
Huntington Capital I | Three-Month LIBOR
Summary of Outstanding Trust Preferred Securities (Textuals) [Abstract]
Rate spread over three month LIBOR	0.70%
Huntington Capital II
Summary of Outstanding Trust Preferred Securities
Interest rate on Trust Preferred Securities	1.76%
Principal amount of subordinated note/ debenture issued to trust	$ 32,093
Investment in unconsolidated subsidiary	$ 3,093
Huntington Capital II | Three-Month LIBOR
Summary of Outstanding Trust Preferred Securities (Textuals) [Abstract]
Rate spread over three month LIBOR	0.625%
Sky Financial Capital Trust III
Summary of Outstanding Trust Preferred Securities
Interest rate on Trust Preferred Securities	2.55%
Principal amount of subordinated note/ debenture issued to trust	$ 72,165
Investment in unconsolidated subsidiary	$ 2,165
Sky Financial Capital Trust III | Three-Month LIBOR
Summary of Outstanding Trust Preferred Securities (Textuals) [Abstract]
Rate spread over three month LIBOR	1.40%
Sky Financial Capital Trust IV
Summary of Outstanding Trust Preferred Securities
Interest rate on Trust Preferred Securities	2.40%
Principal amount of subordinated note/ debenture issued to trust	$ 74,320
Investment in unconsolidated subsidiary	$ 2,320
Camco Financial Trust
Summary of Outstanding Trust Preferred Securities
Interest rate on Trust Preferred Securities	3.59%
Principal amount of subordinated note/ debenture issued to trust	$ 4,252
Investment in unconsolidated subsidiary	$ 155
Camco Financial Trust | Three-Month LIBOR
Summary of Outstanding Trust Preferred Securities (Textuals) [Abstract]
Rate spread over three month LIBOR	1.33%

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VIEs - Low Income Housing Tax Credit Partnership (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Low Income Housing Tax Credit Partnerships
Variable Interest Entity [Line Items]
Affordable housing tax credit investments	$ 870,421		$ 877,237
Less: amortization	(310,602)		(300,357)
Net affordable housing tax credit investments	559,819		576,880
Unfunded commitments	279,270		$ 292,721
Tax credits and other tax benefits recognized	23,283	$ 18,285
Proportional Amortization Method
Variable Interest Entity [Line Items]
Tax credit amortization expense included in provision for income taxes	16,961	12,407
Equity Method
Variable Interest Entity [Line Items]
Tax credit investment (gains) losses included in non-interest income	$ 109	$ 132

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COMMITMENTS AND CONTINGENT LIABILITIES - Commitments to Extend Credit (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Commercial
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount represents credit risk	$ 15,030,796	$ 15,190,056
Consumer
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount represents credit risk	12,523,637	12,235,943
Commercial Real Estate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount represents credit risk	1,531,769	1,697,671
Standby Letters of Credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount represents credit risk	560,718	637,182
Commercial letters-of-credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contract amount represents credit risk	$ 5,160	$ 4,610

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COMMITMENTS AND CONTINGENT LIABILITIES - Narrative (Details)	3 Months Ended			12 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2010 lawsuit	Sep. 28, 2015 USD ($)
Loss Contingencies [Line Items]
Maturity period of majority of standby letters of credit	P2Y
Maturity period of Commercial letters of credit	P90D
Maturity period of forward contracts relating mortgage banking business	1 year
Cyberco Litigation
Loss Contingencies [Line Items]
Bankruptcy Court recommended judgment amount in Cyberco case, principal					$ 72,000,000
Loss contingency period increase (decrease)		$ (42,000,000)	$ 38,000,000
FirstMerit Merger Litigation
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit				2
Standby Letters of Credit
Loss Contingencies [Line Items]
Carrying amount of deferred revenue associated with guarantees	$ 7,000,000	8,000,000
Outstanding standby letters of credit	560,718,000	637,182,000
Commercial letters-of-credit
Loss Contingencies [Line Items]
Outstanding standby letters of credit	5,160,000	4,610,000
Commitments to Sell Loans
Loss Contingencies [Line Items]
Commitments to sell residential real estate loans	900,000,000	819,000,000
Maximum
Loss Contingencies [Line Items]
Aggregate range of reasonably possible losses current legal proceedings	70,000,000
Minimum
Loss Contingencies [Line Items]
Aggregate range of reasonably possible losses current legal proceedings	$ 0
Cash [Member] | FirstMerit Overdraft Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount		9,000,000
Debt forgiveness [Member] | FirstMerit Overdraft Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount		7,000,000
Insurance Settlement [Member] | FirstMerit Overdraft Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount		$ 4,400,000

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SEGMENT REPORTING (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) reporting_unit business segments	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reporting segments | segments	5
Maximum business banking customer's revenue	$ 20,000
Number of business banking businesses | business	254,000
Net interest income	$ 729,975	$ 503,066
Provision (reduction in allowance) for credit losses	(67,638)	(27,582)
Noninterest income	312,463	241,867
Noninterest expense	707,422	491,080
Income taxes	59,284	54,957
Net income	208,094	171,314
Assets	100,045,506		$ 99,714,097
Deposits	77,422,510		75,607,717
Operating Segments | Consumer & Business Banking
Segment Reporting Information [Line Items]
Net interest income	393,496	264,529
Provision (reduction in allowance) for credit losses	(31,294)	(12,177)
Noninterest income	146,790	120,257
Noninterest expense	374,083	280,121
Income taxes	47,218	32,371
Net income	87,691	60,117
Assets	21,747,257		21,831,681
Deposits	$ 45,802,879		44,724,252
Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Number of reporting units | reporting_unit	7
Net interest income	$ 174,563	105,350
Provision (reduction in allowance) for credit losses	(22,137)	(35,054)
Noninterest income	69,487	58,916
Noninterest expense	114,970	92,995
Income taxes	37,430	12,676
Net income	69,513	23,541
Assets	24,233,720		24,236,490
Deposits	19,041,629		18,053,208
Operating Segments | CREVF
Segment Reporting Information [Line Items]
Net interest income	139,333	95,597
Provision (reduction in allowance) for credit losses	(9,549)	16,649
Noninterest income	11,209	7,311
Noninterest expense	50,359	40,206
Income taxes	31,722	27,773
Net income	58,912	51,578
Assets	23,953,670		23,576,832
Deposits	1,890,433		1,893,072
Operating Segments | RBPCG
Segment Reporting Information [Line Items]
Net interest income	46,649	34,923
Provision (reduction in allowance) for credit losses	(2,771)	725
Noninterest income	36,170	24,717
Noninterest expense	52,162	40,503
Income taxes	9,760	6,952
Net income	18,126	12,910
Assets	5,280,791		5,213,530
Deposits	5,981,930		6,214,250
Operating Segments | Home Lending
Segment Reporting Information [Line Items]
Net interest income	15,215	12,985
Provision (reduction in allowance) for credit losses	(1,887)	2,274
Noninterest income	23,981	11,503
Noninterest expense	34,655	24,593
Income taxes	929	759
Net income	1,725	1,410
Assets	3,524,718		3,502,069
Deposits	349,765		631,494
Treasury / Other
Segment Reporting Information [Line Items]
Net interest income	(39,281)	(10,318)
Provision (reduction in allowance) for credit losses	0	1
Noninterest income	24,826	19,163
Noninterest expense	81,193	12,662
Income taxes	(67,775)	(25,574)
Net income	(27,873)	$ 21,758
Assets	21,305,350		21,353,495
Deposits	$ 4,355,874		$ 4,091,441