10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_______________________________________________

FORM 10-K

_______________________________________________

(Mark One)

x Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2016

or

¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number 1-34073

_______________________________________________

Huntington Bancshares Incorporated

(Exact name of registrant as specified in its charter)

_______________________________________________

Maryland	31-0724920
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
41 S. High Street, Columbus, Ohio	43287
(Address of principal executive offices)	(Zip Code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of class	Name of exchange on which registered
8.50% Series A non-voting, perpetual convertible preferred stock	NASDAQ
5.875% Series C Non-Cumulative, perpetual preferred stock	NASDAQ
6.250% Series D Non-Cumulative, perpetual preferred stock	NASDAQ
Common Stock—Par Value $0.01 per Share	NASDAQ

Securities registered pursuant to Section 12(g) of the Act:

Title of class

Floating Rate Series B Non-Cumulative Perpetual Preferred Stock

Depositary Shares (each representing a 1/40th interest in a share of Floating Rate Series B Non-Cumulative Perpetual Preferred Stock)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Exchange Act.  x    Yes  ¨    No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.  ¨    Yes  x    No

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 (or for such shorter period that the registrant was required to file such reports), 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 if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

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 definition 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	¨

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

The aggregate market value of voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2016, determined by using a per share closing price of $8.94, as quoted by NASDAQ on that date, was $6,959,125,311. As of January 31, 2017, there were 1,085,887,404 shares of common stock with a par value of $0.01 outstanding.

Documents Incorporated By Reference

Part III of this Form 10-K incorporates by reference certain information from the registrant’s definitive Proxy Statement for the 2017 Annual Shareholders’ Meeting.

HUNTINGTON BANCSHARES INCORPORATED

INDEX

Part I.
Item 1.	Business	6
Item 1A.	Risk Factors	17
Item 1B.	Unresolved Staff Comments	25
Item 2.	Properties	25
Item 3.	Legal Proceedings	26
Item 4.	Mine Safety Disclosures	26
Part II.
Item 5.	Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities	26
Item 6.	Selected Financial Data	28
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
	Introduction	30
	Executive Overview	30
	Discussion of Results of Operations	33
	Risk Management and Capital:	43
	Credit Risk	43
	Market Risk	61
	Liquidity Risk	64
	Operational Risk	70
	Compliance Risk	71
	Capital	71
	Business Segment Discussion	75
	Results for the Fourth Quarter	82
	Additional Disclosures	92
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	97
Item 8.	Financial Statements and Supplementary Data	97
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	189
Item 9A.	Controls and Procedures	189
Item 9B.	Other Information	190
Part III.
Item 10.	Directors, Executive Officers and Corporate Governance	190

Item 11.	Executive Compensation	190
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	190
Item 13.	Certain Relationships and Related Transactions, and Director Independence	191
Item 14.	Principal Accountant Fees and Services	191
Part IV.
Item 15.	Exhibits and Financial Statement Schedules	191
Item 16.	Form 10-K Summary	192
Signatures

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	Consumer Financial Protection Bureau
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
EPS	Earnings Per Share
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
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 Assets
HTM	Held-to-Maturity
IRS	Internal Revenue Service
LCR	Liquidity Coverage Ratio
LIBOR	London Interbank Offered Rate
LGD	Loss-Given-Default
LIHTC	Low Income Housing Tax Credit

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LTV	Loan to Value
NAICS	North American Industry Classification System
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
NALs	Nonaccrual Loans
NCO	Net Charge-off
NII	Noninterest 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
Problem Loans	Includes nonaccrual loans and leases (Table 13), accruing loans and leases past due 90 days or more (Table 14), troubled debt restructured loans (Table 15), and criticized commercial loans (credit quality indicators section of Footnote 4).
RBHPCG	Regional Banking and The Huntington Private Client Group
REIT	Real Estate Investment Trust
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
VA	U.S. Department of Veteran Affairs
VIE	Variable Interest Entity
XBRL	eXtensible Business Reporting Language

5

Huntington Bancshares Incorporated

PART I

When we refer to "Huntington", "we", "our", "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 1: Business

We are a multi-state diversified regional bank holding company organized under Maryland law in 1966 and headquartered in Columbus, Ohio. We have 15,993 average full-time equivalent employees. Through the Bank, we have 150 years of serving 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. The Bank, organized in 1866, is our only bank subsidiary. At December 31, 2016, the Bank had 24 private client group offices and 1,091 branches as follows:

•    523 branches in Ohio	•    39 branches in Illinois
•    353 branches in Michigan	•    37 branches in Wisconsin
•    53 branches in Pennsylvania	•    30 branches in West Virginia
•    46 branches in Indiana	•    10 branches in Kentucky

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.

Our business segments are based on our internally-aligned segment leadership structure, which is how we monitor results and assess performance. For each of our five business segments, we expect the combination of our business model and exceptional service to provide a competitive advantage that supports revenue and earnings growth. Our business model emphasizes the delivery of a complete set of banking products and services offered by larger banks, but distinguished by local delivery and customer service.

A key strategic emphasis has been for our business segments to operate in cooperation to provide products and services to our customers and to build stronger and more profitable relationships using our OCR sales and service process. The objectives of OCR are to:

1.Use a consultative sales approach to provide solutions that are specific to each customer.

2.Leverage each business segment in terms of its products and expertise to benefit customers.

3.Develop prospects who may want to have multiple products and services as part of their relationship with us.

Following is a description of our five business segments and a Treasury / Other function:

• 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, investments, 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. Huntington serves customers through our network of branches in Ohio, Illinois, Indiana, Kentucky, Michigan, Pennsylvania, West Virginia, and Wisconsin. In addition to our extensive branch network, customers can access Huntington through online banking, mobile banking, telephone banking and ATMs.

We have a "Fair Play" banking philosophy; providing differentiated products and services, built on a strong foundation of customer advocacy. Our brand resonates with consumers and businesses; earning us new customers and deeper relationships with current customers.

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Business Banking is a dynamic part of our business and we are committed to being the bank of choice for businesses in our markets. Business Banking is defined as serving companies with revenues up to $20 million and consists of approximately 254,000 businesses. Huntington continues to develop products and services that are designed specifically to meet the needs of small business and look for ways to help companies find solutions to their financing needs.

• 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.

Middle Market Banking primarily focuses on providing banking solutions to companies with annual revenues of $20 million to $500 million. Through a relationship management approach, various products, capabilities and solutions are seamlessly delivered in a client centric way.

Large Corporate Banking works with larger, often more complex companies with revenues greater than $500 million. These entities, many of which are publicly traded, require a different and customized approach to their banking needs.

Specialty Banking offers tailored products and services to select industries that have a foothold in the Midwest. Each team is comprised of industry experts with a dynamic understanding of the market and industry. Many of these industries are experiencing tremendous change, which creates opportunities for Huntington to leverage our expertise and help clients navigate, adapt, and succeed.

Asset Finance is a combination of our Equipment Finance, Public Capital, Asset Based Lending, Technology and Healthcare Equipment Leasing, and Lender Finance divisions that focus on providing financing solutions against these respective asset classes.

Capital Markets has two distinct product offerings: corporate risk management services and institutional sales, trading, and underwriting. The Capital Markets Group offers a full suite of risk management tools including commodities, foreign exchange, and interest rate hedging services. The Institutional Sales, Trading & Underwriting team provides access to capital and investment solutions for both municipal and corporate institutions.

Treasury Management teams help businesses manage their working capital programs and reduce expenses. Our liquidity solutions help customers save and invest wisely, while our payables and receivables capabilities help them manage purchases and the receipt of payments for goods and services. All of this is provided while helping customers take a sophisticated approach to managing their overhead, inventory, equipment, and labor.

Insurance brokerage business specializes in commercial property and casualty, employee benefits, personal lines, life, disability and specialty lines of insurance. The group also provides brokerage and agency services for residential and commercial title insurance and excess and surplus product lines of insurance. As an agent and broker, this business does not assume underwriting risks but alternatively provides our customers with access to quality, noninvestment insurance contracts.

• 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 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, and 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. Products and services are delivered through highly specialized relationship-focused bankers and product partners. Huntington creates well-defined relationship plans which identify needs where solutions are developed and customer commitments are obtained.

The Commercial Real Estate team serves real estate developers, REITs, and other customers with lending needs that are secured by commercial properties. Most of these customers are located within our footprint. Within Commercial Real Estate, Huntington Community Development focuses on improving the quality of life for our communities and the residents of low-to moderate-income neighborhoods by developing and delivering innovative products and services to support affordable housing and neighborhood stabilization.

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The Vehicle Finance team services automobile dealerships, its owners, and consumers buying automobiles through these franchised dealerships. Huntington has provided new and used automobile financing and dealer services throughout the Midwest since the early 1950s. This consistency in the market and our focus on working with strong dealerships has allowed us to expand into select markets outside of the Midwest and to actively deepen relationships while building a strong reputation. RV and marine loans are originated on an indirect basis through a series of dealerships.

• Regional Banking and The Huntington Private Client Group: Regional Banking and The Huntington Private Client Group is closely aligned with our regional banking markets. A fundamental point of differentiation is our commitment to be actively engaged within our local markets - building connections with community and business leaders and offering a uniquely personal experience delivered by colleagues working within those markets.

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 and 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.

The Treasury / Other function includes technology and operations, other unallocated assets, liabilities, revenue, and expense.

The financial results for each of these business segments are included in Note 24 of Notes to Consolidated Financial Statements and are discussed in the Business Segment Discussion of our MD&A.

Business Combination

On August 16, 2016, Huntington completed its acquisition of FirstMerit Corporation in a stock and cash transaction valued at approximately $3.7 billion. FirstMerit Corporation was a diversified financial services company headquartered in Akron, Ohio, with operations in Ohio, Michigan, Wisconsin, Illinois and Pennsylvania. Post acquisition, Huntington now operates across an eight-state Midwestern footprint. The acquisition resulted in a combined company with a larger market presence and more diversified loan portfolio, as well as a larger core deposit funding base and economies of scale associated with a larger financial institution. For further discussion, see Note 3 of the Notes to Consolidated Financial Statements.

Competition

We compete with other banks and financial services companies such as savings and loans, credit unions, and finance and trust companies, as well as mortgage banking companies, automobile and equipment financing companies (including captive automobile finance companies), insurance companies, mutual funds, investment advisors, and brokerage firms, both within and outside of our primary market areas. FinTech startups are also providing nontraditional, but increasingly strong, competition for our borrowers, depositors, and other customers.

We compete for loans primarily on the basis of a combination of value and service by building customer relationships as a result of addressing our customers’ entire suite of banking needs, demonstrating expertise, and providing convenience to our customers. We also consider the competitive pricing pressures in each of our markets.

We compete for deposits similarly on a basis of a combination of value and service and by providing convenience through a banking network of branches and ATMs within our markets and our website at www.huntington.com. We have also instituted customer friendly practices, such as our 24-Hour Grace^® account feature, which gives customers an additional business day to cover overdrafts to their consumer account without being charged overdraft fees.

The table below shows our combined Huntington and FirstMerit competitive ranking and market share based on deposits of FDIC-insured institutions as of June 30, 2016, in the top 10 metropolitan statistical areas (MSA) in which we compete:

8

MSA	Rank	Deposits (in millions)		Market Share
Columbus, OH	1	$	20,453	32	%
Cleveland, OH	5	8,976		14
Detroit, MI	7	6,542		5
Akron, OH	1	5,611		39
Indianapolis, IN	4	3,272		7
Cincinnati, OH	4	2,727		3
Pittsburgh, PA	9	2,689		2
Chicago, IL	16	2,581		1
Toledo, OH	1	2,474		25
Grand Rapids, MI	2	2,466		12
Source: FDIC.gov, based on June 30, 2016 survey.

Many of our nonfinancial institution competitors have fewer regulatory constraints, broader geographic service areas, greater capital, and, in some cases, lower cost structures. In addition, competition for quality customers has intensified as a result of changes in regulation, advances in technology and product delivery systems, consolidation among financial service providers, and bank failures.

Financial Technology, or FinTech, startups are emerging in key areas of banking.  In response, we are monitoring activity in marketplace lending along with businesses engaged in money transfer, investment advice, and money management tools. Our strategy involves assessing the marketplace, determining our near term plan, while developing a longer term approach to effectively service our existing customers and attract new customers. This includes evaluating which products we develop in-house, as well as evaluating partnership options, where applicable.

Regulatory Matters

General

We are subject to supervision, regulation and examination by various federal and state regulators, including the Federal Reserve, OCC, SEC, CFPB, FDIC, FINRA, and various state regulatory agencies. The statutory and regulatory framework that governs us is generally intended to protect depositors and customers, the DIF, the banking and financial system, and financial markets as a whole. Any change in the statutes, regulations or regulatory policies applicable to us, including changes in their interpretation or implementation, could have a material effect on our business or organization.

The banking industry is highly regulated. During the past several years, there has been a significant increase in regulation and regulatory oversight of U.S. financial services firms, primarily resulting from the Dodd-Frank Act. The Dodd-Frank Act implements numerous and far-reaching changes that affect financial companies, including banking organizations. Many of the provisions of the Dodd-Frank Act and other laws are subject to further rulemaking, guidance and interpretation by the applicable federal regulators. Some of the regulations related to these reforms are still in the implementation stage and, as a result, there is significant uncertainty concerning their ultimate impact on us.

The following discussion describes certain elements of the comprehensive regulatory framework applicable to us.

Supervision, Regulation and Examination

Huntington is registered as a BHC with the Federal Reserve under the BHC Act and qualifies for and has elected to become a FHC under the Gramm-Leach-Bliley Act of 1999. As a FHC, Huntington is subject to primary supervision, regulation and examination by the Federal Reserve, and is permitted to engage in, and be affiliated with companies engaging in, a broader range of activities than permitted for a BHC, including underwriting, dealing and making markets in securities, and making merchant banking investments in non-financial companies. Huntington and the Bank must each remain “well-capitalized” and “well-managed” in order for Huntington to maintain its status as a FHC. In addition, the Bank must receive a CRA rating of at least “Satisfactory” at its most recent examination for Huntington to engage in the full range of activities permissible for FHCs.

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The Bank is a national banking association chartered under the laws of the United States and is subject to comprehensive primary supervision, regulation and examination by the OCC. As a national bank, the activities of the Bank are limited to those specifically authorized under the National Bank Act and related regulations and interpretations by the OCC. As a member of the DIF, the Bank is also subject to regulation and examination by the FDIC. In addition, the Bank is subject to supervision, regulation and examination by the CFPB, which is the primary administrator of most federal consumer financial statutes and the primary consumer financial regulator of banking organizations with $10 billion or more in assets.

Under the system of “functional regulation” established under the BHC Act, the Federal Reserve serves as the primary regulator of our consolidated organization. The primary regulators of our non-bank subsidiaries directly regulate the activities of those subsidiaries, with the Federal Reserve exercising a supervisory role. Such “functionally regulated” non-bank subsidiaries include, for example, broker-dealers registered with the SEC and investment advisers registered with the SEC with respect to their investment advisory activities.

Regulatory Capital Requirements

Huntington and the Bank are subject to certain risk-based capital and leverage ratio requirements. The Federal Reserve establishes capital and leverage requirements for Huntington and evaluates its compliance with such requirements. The OCC establishes similar capital and leverage requirements for the Bank. In 2013, the Federal Reserve and OCC issued final rules (and the FDIC issued interim final rules that were adopted as final rules in April 2014) to implement the Basel III capital accord, as well as certain requirements of the Dodd-Frank Act. The final capital rules made a number of significant changes to the regulatory capital ratios applicable to Huntington and the Bank, as well as all other banks and BHCs of their size. In addition, the capital rules modified the types of capital instruments that may be included in regulatory capital and how certain assets are risk-weighted for purposes of these calculations.

Under the final capital rules, Huntington and the Bank must maintain a minimum CET1 risk-based ratio, a minimum Tier I risk-based capital ratio, a minimum total risk-based capital ratio, and a minimum leverage ratio. The final capital rules also limit capital distributions and certain discretionary bonuses if a banking organization does not maintain certain capital ratios. The preamble to the final capital rules states that these quantitative calculations are minimums and that the agencies may determine that a banking organization, based on its size, complexity or risk profile, must maintain a higher level of capital in order to be operate in a safe and sound manner.

In addition, the final capital rules generally provide that trust preferred securities and certain preferred securities no longer count as Tier I capital. Banking organizations with more than $15 billion in total consolidated assets were required to phase-out of additional Tier 1 capital any non-qualifying capital instruments (such as trust preferred securities and cumulative preferred shares) issued before September 12, 2010. We have phased out the additional tier 1 capital treatment of our trust preferred securities but are including these instruments in tier 2 capital as allowed by Basel III.

The final capital rules take effect in phases. Huntington and the Bank were required to be in compliance with certain calculation requirements and begin transitioning to other requirements by January 1, 2015, with full compliance with the modified calculations on January 1, 2019. The rules concerning capital conservation and countercyclical capital buffers became effective on January 1, 2016.

The following are the minimum Basel III regulatory capital levels that we must satisfy to avoid limitations on capital distributions and discretionary bonus payments during the applicable transition period, from January 1, 2016, until January 1, 2019:

	Minimum Basel III Regulatory Capital Levels
	January 1, 2016		January 1, 2017		January 1, 2018		January 1, 2019
Common equity tier 1 risk-based capital ratio	5.125	%	5.75	%	6.375	%	7.0	%
Tier 1 risk-based capital ratio	6.625	%	7.25	%	7.875	%	8.5	%
Total risk-based capital ratio	8.625	%	9.25	%	9.875	%	10.5	%

Failure to meet applicable capital guidelines may subject a financial institution to a variety of enforcement remedies available to the federal regulatory authorities. These include limitations on the ability to pay dividends, the issuance by the regulatory authority of a directive to increase capital, and the termination of deposit insurance by the FDIC. In addition, the financial institution could be subject to the measures described below under “Prompt Corrective Action” as applicable to under-capitalized institutions.

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Huntington’s regulatory capital ratios and those of the Bank were in excess of the levels established for well-capitalized institutions throughout 2016. An institution is deemed to be “well-capitalized” if it meets or exceeds the well-capitalized minimums listed below, and is not subject to a regulatory order, agreement, or directive to meet and maintain a specific capital level for any capital measure.

				At December 31, 2016
(dollar amounts in billions)		Well-capitalized minimums		Actual		Excess Capital (1)
Ratios:
Tier 1 leverage ratio	Consolidated	N/A		8.70	%	N/A
	Bank	5.00	%	9.29		$	4.2
Common equity tier 1 risk-based capital ratio	Consolidated	N/A		9.56		N/A
	Bank	6.50		10.42		3.1
Tier 1 risk-based capital ratio	Consolidated	6.00		10.92		2.7
	Bank	8.00		11.61		1.3
Total risk-based capital ratio	Consolidated	10.00		13.05		2.4
	Bank	10.00		13.83		3.0

(1) Amount greater than the well-capitalized minimum percentage.

Enhanced Prudential Standardsand Early Remediation Requirements

Under the Dodd-Frank Act, BHCs with consolidated assets of more than $50 billion, such as Huntington, are subject to certain enhanced prudential standards and early remediation requirements. As a result, Huntington is subject to more stringent standards and requirements, including liquidity and capital requirements, leverage limits, stress testing, risk management standards, than those applicable to smaller institutions. With regard to resiliency, we are expected to ensure that the consolidated organization and its core business lines can survive under a broad range of internal or external stresses. This requires financial resilience by maintaining sufficient capital and liquidity, and operational resilience by maintaining effective corporate governance, risk management, and recovery planning. With respect to lowering the probability of failure, we are expected to ensure the sustainability of our critical operations and banking offices under a broad range of internal or external stresses.

Comprehensive Capital Analysis and Review

Huntington is required to submit a capital plan annually to the Federal Reserve for supervisory review in connection with its annual CCAR process. Huntington is required to include within its capital plan an assessment of the expected uses and sources of capital and a description of all planned capital actions over the planning horizon, a detailed description of the process for assessing capital adequacy, its capital policy, and a discussion of any expected changes to its business plan that are likely to have a material impact on its capital adequacy. The planning horizon for the most recently completed capital planning and stress testing cycle encompassed the nine-quarter period from the first quarter of 2016 through the first quarter of 2018.

Currently, the Federal Reserve may object to a BHC’s capital plan based on either quantitative or qualitative grounds. If the Federal Reserve objects to a BHC’s capital plan, the BHC may not make any capital distribution unless the Federal Reserve indicates in writing that it does not object to the distribution. Under CCAR, the Federal Reserve makes a qualitative assessment of capital adequacy on a forward-looking basis and reviews the strength of a BHC’s capital adequacy process. The Federal Reserve also makes a quantitative assessment of capital based on supervisory-run stress tests that assess the ability to maintain capital levels above certain minimum ratios, after taking all capital actions included in a BHC’s capital plan, under baseline and stressful conditions throughout a nine-quarter planning horizon. As part of CCAR, the Federal Reserve evaluates whether BHCs have sufficient capital to continue operations throughout times of economic and financial market stress and whether they have robust, forward-looking capital planning processes that account for their unique risks.

The Federal Reserve expects BHCs subject to CCAR, such as Huntington, to have sufficient capital to withstand a highly adverse operating environment and to be able to continue operations, maintain ready access to funding, meet obligations to creditors and counterparties, and serve as credit intermediaries. In addition, the Federal Reserve evaluates the planned capital actions of these BHCs, including planned capital distributions such as dividend payments or stock repurchases. We generally may pay dividends and repurchase stock only in accordance with a capital plan that has been reviewed by the Federal Reserve and as to which the Federal Reserve has not objected. In addition, we are generally prohibited from making a capital distribution unless, after giving effect to the distribution, we will meet all minimum regulatory capital ratios.

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On September 30, 2016, the Federal Reserve issued a proposed rule to amend the capital plan and stress test rules for large and non-complex BHCs, such as Huntington, to provide, among other things, that beginning with the 2017 CCAR cycle, such BHCs would continue to submit a capital plan for quantitative assessment but would no longer be subject to a non-objection from a qualitative aspect. The Federal Reserve is proposing to evaluate the strength of a large and non-complex company’s qualitative capital planning process through the regular supervisory process and targeted horizontal reviews of particular aspects of capital planning. A final rule implementing the changes described above was issued on February 3, 2017.

Huntington submitted its 2016 capital plan to the Federal Reserve in April 2016. The Federal Reserve did not object to Huntington’s 2016 capital plan. Huntington is required and intends to submit to the Federal Reserve its capital plan for 2017 by April 5, 2017. There can be no assurance that the Federal Reserve will respond favorably to Huntington’s 2017 capital plan, capital actions or stress test results.

Stress Testing

The Dodd-Frank Act requires a semi-annual supervisory stress test of BHCs, including Huntington, with $50 billion or more of total consolidated assets. This Dodd-Frank Act supervisory stress testing is a forward-looking quantitative evaluation of the impact of stressful economic and financial market conditions on BHC capital. The Dodd-Frank Act also requires BHCs to conduct company-run annual and semi-annual stress tests, the results of which are filed with the Federal Reserve and publicly disclosed. A BHC’s ability to make capital distributions is limited to the extent the BHC’s actual capital levels are less than the amount indicated in its capital plan submission.

The Dodd-Frank Act also requires a national bank, such as the Bank, with total consolidated assets of more than $10 billion to conduct annual company-run stress tests. The objective of the annual company-run stress test is to ensure that covered institutions have robust, forward-looking capital planning processes that account for their unique risks, and to help ensure that institutions have sufficient capital to continue operations throughout times of economic and financial stress. A covered institution is required to publish a summary of the results of its annual stress tests.

Liquidity Coverage Ratio

On September 3, 2014, the U.S. banking regulators approved a final rulewhich became effective on January 1, 2015 to implement a minimum LCR requirement for banking organizations with total consolidated assets of $250 billion or more, and a less stringent modified LCR requirement to depository institution holding companies, such as Huntington, below the threshold but with total consolidated assets of $50 billion or more. The LCR requires covered banking organizations to maintain HQLA equal to projected stressed cash outflows over a 30 calendar-day stress scenario. Huntington is covered by the “modified LCR” requirement and therefore subject to the phase-in of the rule beginning January 2016 at 90% and January 2017 at 100%. Huntington is required to calculate the LCR monthly. The LCR assigns less severe outflow assumptions to certain types of customer deposits, which should increase the demand, and perhaps the cost, among banks for these deposits. Additionally, the HQLA requirements has increased the demand for direct U.S. government and U.S. government-guaranteed debt that, while high quality, generally carry lower yields than other securities that banks hold in their investment portfolios.

Restrictions on Dividends

At the holding company level, Huntington relies on dividends, distributions and other payments from its subsidiaries, particularly the Bank, to fund the dividends paid to its shareholders, as well as to satisfy its debt and other obligations. Certain federal and state statutes, regulations and contractual restrictions limit the ability of our subsidiaries, including the Bank, to pay dividends to us. The OCC has authority to prohibit or limit the payment of dividends by the Bank if, in the OCC’s view, payment of a dividend would constitute an unsafe or unsound practice in light of the financial condition of the Bank.

In addition, Huntington’s ability to pay dividends or return capital to its shareholders, whether through an increase in common stock dividends or through a share repurchase program, is subject to the oversight of the Federal Reserve. The dividend and share repurchase policies of certain BHCs, such as Huntington, are reviewed by the Federal Reserve through the CCAR process, based on capital plans and stress tests submitted by the BHC, and are assessed against, among other things, the BHC’s ability to meet and exceed minimum regulatory capital ratios under stressed scenarios, its expected sources and uses of capital over the planning horizon under baseline and stressed scenarios, and any potential impact of changes to its business plan and activities on its capital adequacy and liquidity. The Federal Reserve’s capital planning rule includes a limitation on capital distributions to the extent that actual capital issuances are less than the amount indicated in the capital plan submission.

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Volcker Rule

The Dodd-Frank Act introduced restrictions to prohibit or restrict the ability of banking entities from engaging in short-term proprietary trading and sponsoring of or investing in private equity and hedge funds (the “Volcker Rule”). The final regulations implementing the Volcker Rule were adopted by the regulatory agencies on December 10, 2013.

The Volcker Rule and final regulations contain a number of exceptions to the prohibition on proprietary trading and sponsoring or acquiring any ownership interest in private equity or hedge funds (“covered funds”). The Volcker Rule permits banking entities to engage in certain activities such as underwriting, market-making and risk-mitigation hedging, and exempts from the definition of a covered fund certain entities, such as wholly-owned subsidiaries, joint ventures, and acquisitions vehicles, as well as SEC registered investment companies. In addition, the Volcker Rule limits certain types of transactions between a banking entity and any covered fund forwhich it serves as investment manager or investment advisor.

The final rules implementing the Volcker Rule extended the conformance period generally until July 21, 2015. On December 18, 2014, the Federal Reserve announced that it would give banking entities an additional one year, until July 21, 2016, to conform investments in and relationships with covered funds that were in place prior to December 31, 2013 (“legacy covered funds”). On July 7, 2016, the Federal Reserve granted banking entities an additional one-year extension of the conformance period until July 21, 2017, to conform ownership interests in and relationships to legacy covered funds. In February 2017, the Federal Reserve approved our application for an extended transition period with respect to certain legacy illiquid fund investments.

On January 14, 2014, the five federal agencies approved an interim final rule to permit banking entities to retain interests in certain collateralized debt obligations backed primarily by trust preferred securities from the investment prohibitions of the Volcker Rule. Under the interim final rule, the agencies permit the retention of an interest in or sponsorship of covered funds by banking entities if certain qualifications are met. In addition, the agencies released a non-exclusive list of issuers that meet the requirements of the interim final rule. At December 31, 2016, we had investments in seven different pools of trust preferred securities. Six of our pools are included in the list of non-exclusive issuers. We have analyzed the other pool that was not included on the list and believe that we will continue to be able to own this investment under the final Volcker Rule regulations as well.

Resolution Planning

As a BHC with assets of $50 billion or more, Huntington is required to submit annually to the Federal Reserve and the FDIC a plan for the orderly resolution of Huntington and its significant legal entities under the U.S. Bankruptcy Code or other applicable insolvency laws in a rapid and orderly fashion in the event of future material financial distress or failure (a “resolution plan”). If the Federal Reserve and the FDIC jointly determine that the resolution plan is not credible and the deficiencies are not cured in a timely manner, they may jointly impose on us more stringent capital, leverage or liquidity requirements or restrictions on our growth, activities or operations. In addition, the FDIC requires each insured depository institution with $50 billion or more in assets, such the Bank, periodically to file a resolution plan with the FDIC.

In July 2016, we were informed that the FDIC extended the date for submission of the Bank’s 2016 resolution plan to December 31, 2017. In August 2016, we were informed that the Federal Reserve and the FDIC also had extended the date for the submission of Huntington’s 2016 resolution plan to December 31, 2017. In each case, we were informed that the submission of a resolution plan in 2017 will satisfy the 2016 resolution plan requirement.

On September 29, 2016, the OCC published final guidelines establishing standards for recovery planning by insured national bankswith average total consolidated assets of $50 billion or more, including the Bank. The final guidelines provide, among other things, that a covered bank should develop and maintain a recovery plan that is appropriate for its individual size, risk profile, activities, and complexity, including the complexity of its organizational and legal entity structure. OCC examiners will assess the appropriateness and adequacy of a covered bank’s ongoing recovery planning process as part of the agency’s regular supervisory activities. Our compliance date is within 18 months from January 1, 2017.

Source of Strength

Huntington is required to serve as a source of financial and managerial strength to the Bank and to commit resources to support the Bank. This support may be required by the Federal Reserve at times when we might otherwise determine not to provide it or when doing so is not otherwise in the interests of Huntington or our stockholders or creditors. The Federal Reserve may require a BHC to make capital injections into a troubled subsidiary bank and may charge the BHC with engaging in unsafe and unsound practices if the BHC fails to commit resources to such a subsidiary bank or if it undertakes actions that the Federal Reserve believes might jeopardize the BHC’s ability to commit resources to such subsidiary bank.

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Prompt Corrective Action

FDICIA requires federal banking agencies to take “prompt corrective action” against banks that do not meet minimum capital requirements. Under this regime, the FDICIA imposes progressively more restrictive constraints on a bank’s operations, management and capital distributions, depending on the capital category in which an institution is classified. For instance, only a well-capitalized bank may accept brokered deposits without prior regulatory approval and an adequately capitalized bank may only do so with such prior approval.

Under FDICIA, five capital levels or categories are established: well capitalized; adequately capitalized; undercapitalized; significantly undercapitalized; and critically undercapitalized. These capital categories are determined solely for purposes of applying the prompt corrective action provisions, and such capital categories may not constitute an accurate representation of our overall financial condition or prospects. An institution may be downgraded to, or deemed to be in, a capital category that is lower than is indicated by its capital ratios if it is determined to be in an unsafe or unsound condition or if it receives an unsatisfactory examination rating with respect to certain matters. FDICIA imposes progressively more restrictive constraints on operations, management and capital distributions, as the capital category of an institution declines. Failure to meet the capital requirements could also require a depository institution to raise capital. Ultimately, critically undercapitalized institutions are subject to the appointment of a receiver or conservator.

Upon the insolvency of an insured depository institution, such as the Bank, the FDIC may be appointed as the conservator or receiver of the institution. The FDIC has broad powers to transfer any assets and liabilities without the approval of the institution’s creditors.

Transactions between a Bank and its Affiliates

Federal banking laws and regulations impose qualitative standards and quantitative limitations upon certain transactions between a bank and its affiliates, including between a bank and its holding company and companies that the BHC may be deemed to control for these purposes. Transactions covered by these provisions must be on arm’s-length terms, and cannot exceed certain amounts which are determined with reference to the bank’s regulatory capital. Moreover, if the transaction is a loan or other extension of credit, it must be secured by collateral in an amount and quality expressly prescribed by statute, and if the affiliate is unable to pledge sufficient collateral, the BHC may be required to provide it. The Dodd-Frank Act expanded the coverage and scope of these regulations, including by applying them to the credit exposure arising under derivative transactions, repurchase and reverse repurchase agreements, and securities borrowing and lending transactions.

Heightened Governance and Risk Management Standards

The OCC has published final guidelines to update expectations for the governance and risk management practices of certain large financial institutions, including national banks with $50 billion or more in average total consolidated assets, such as the Bank. The guidelines, which became effective on November 10, 2014, require covered banks to establish and adhere to a written governance framework in order to manage and control their risk-taking activities. In addition, the guidelines provide standards for the institutions’ boards of directors to oversee the risk governance framework. Given its size and the phased implementation schedule, the Bank became subject to these heightened standards effective May 2016. As discussed in Item 1A: Risk Factors, the Bank currently has a written governance framework and associated controls.

Anti-Money Laundering

The Bank Secrecy Act, as amended by the Patriot Act, contains anti-money laundering and financial transparency laws and mandated the implementation of various regulations applicable to all financial institutions, including standards for verifying client identification at account opening, and obligations to monitor client transactions and report suspicious activities.

The Patriot Act is intended to strengthen the ability of U.S. law enforcement agencies and intelligence communities to cooperate in the prevention, detection and prosecution of international money laundering and the financing of terrorism. The Patriot Act contains anti-money laundering measures requiring insured depository institutions, broker-dealers, and certain other financial institutions to have policies, procedures, and controls to detect, prevent, and report money laundering and terrorist financing. Failure to comply with these regulations may result in fines, penalties, lawsuits, regulatory sanctions, reputation damage, or restrictions on business. Federal banking regulators are required, when reviewing bank holding company acquisition and bank merger applications, to take into account the effectiveness of the anti-money laundering activities of the applicants.

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Privacy

Federal law contains extensive consumer privacy protection provisions, including substantial consumer privacy protections provided under the Gramm-Leach-Bliley Act of 1999. Under these provisions, a financial institution must provide to its customers, at the inception of the customer relationship and generally annually thereafter, the institution’s policies and procedures regarding the handling and safeguarding of customers’ nonpublic personal information. These provisions also provide that, except for certain limited exceptions, an institution may not provide such nonpublic personal information to unaffiliated third parties unless the institution discloses to the customer that such information may be so provided and the customer is given the opportunity to opt out of such disclosure. Federal law makes it a criminal offense, except in limited circumstances, to obtain or attempt to obtain customer information of a financial nature by fraudulent or deceptive means.

FDIC Insurance

DIF provides insurance coverage for certain deposits, which is funded through assessments on banks. The Bank accepts deposits that are insured by the DIF. As a DIF member, the Bank must pay insurance premiums. The FDIC may take action to increase the Bank’s insurance premiums based on various factors, including the FDIC’s assessment of its risk profile. The Dodd-Frank Act required the FDIC to change the deposit insurance assessment base from deposits to average consolidated total assets minus average tangible equity. In March 2016, the FDIC issued a final rule to increase the DIF from 1.15% to the statutorily required minimum level of 1.35%. Under the Dodd-Frank Act, banks with $10 billion or more in total assets, such as the Bank, are responsible for funding this increase.

On November 15, 2016, the FDIC adopted a final rule to facilitate prompt payment of FDIC-insured deposits when large insured depository institutions (those with more than two million deposit accounts) fail. The final rule, which is expected to become effective on April 1, 2017, requires us to configure our information technology system to be capable of calculating the insured and uninsured amount in each deposit account by ownership right and capacity, which would be used by the FDIC to make deposit insurance determinations in the event of our failure, and maintain complete and accurate information needed by the FDIC to determine deposit insurance coverage with respect to each deposit account, except as otherwise provided. We will have three years after the effective date for implementation.

Compensation

Our compensation practices are subject to oversight by the Federal Reserve and, with respect to some of our subsidiaries and employees, by other financial regulatory bodies. The scope and content of compensation regulation in the financial industry are continuing to develop, and we expect that these regulations and resulting market practices will continue to evolve over a number of years.

The federal bank regulatory agencies have provided guidance designed to ensure that incentive compensation arrangements at banking organizations take into account risk and are consistent with safe and sound practices. The guidance provides that supervisory findings with respect to incentive compensation will be incorporated, as appropriate, into the organization’s supervisory ratings, which can affect its ability to make acquisitions or perform other actions. The guidance also provides that enforcement actions may be taken against a banking organization if its incentive compensation arrangements or related risk management, control or governance processes pose a risk to the organization’s safety and soundness.

In 2016 the federal banking regulatory agencies, including the Federal Reserve, the OCC and the SEC, jointly proposed a rule to implement Section 956 of the Dodd-Frank Act. Section 956 generally requires the federal bank regulatory agencies to jointly issue regulations or guidelines: (1) prohibiting incentive-based payment arrangements that the agencies determine encourage inappropriate risks by certain financial institutions by providing excessive compensation or that could lead to material financial loss; and (2) requiring those financial institutions to disclose information concerning incentive-based compensation arrangements to the appropriate federal regulator.

Cyber Security

The CISA, which became effective on December 18, 2015, is intended to improve cyber security in the United States by enhanced sharing of information about security threats among the U.S. government and private sector entities, including financial institutions. The CISA also authorizes companies to monitor their own systems notwithstanding any other provision of law, and allows companies to carry out defensive measures on their own systems from cyber-attacks. The law includes liability protections for companies that share cyber threat information with third parties so long as such sharing activity is conducted in accordance with CISA.

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Enhanced Cyber Risk Management Standards

On November 22, 2016, the federal banking agencies released an ANPR regarding enhanced cyber risk management standards (enhanced standards) for large and interconnected entities under their supervision. The agencies stated that they were considering establishing enhanced standards to increase the operational resilience of covered entities and reduce the impact on the financial system in case of a cyber event experienced by a covered entity. The ANPR describes potential enhanced cyber standards that are divided into five general categories: cyber risk governance; cyber risk management; internal dependency management; external dependency management; and incident response, cyber resilience, and situational awareness. The agencies are considering implementing the enhanced standards in a tiered manner, imposing more stringent standards on the systems of those entities that are critical to the functioning of the financial sector. The Federal Reserve is considering applying the enhanced standards on an enterprise-wide basis to all BHCs, such as us, with total consolidated assets of $50 billion or more. The OCC is considering applying the standards to any national bank, such as the Bank, that is a subsidiary of a bank holding company with total consolidated assets of $50 billion or more.

Community Reinvestment Act

The CRA requires the Bank’s primary federal bank regulatory agency, the OCC, to assess the bank’s record in meeting the credit needs of the communities served by the Bank, including low- and moderate-income neighborhoods and persons. Institutions are assigned one of four ratings: “Outstanding,” “Satisfactory,” “Needs to Improve” or “Substantial Noncompliance.” This assessment is reviewed for any bank that applies to merge or consolidate with or acquire the assets or assume the liabilities of an insured depository institution, or to open or relocate a branch office. The CRA record of each subsidiary bank of a BHC, such as the Bank, also is assessed by the Federal Reserve in connection with any acquisition or merger application.

CFPB Regulation and Supervision

We are subject to supervision and regulation by the CFPB with respect to federal consumerprotection laws, including laws relating to fair lending and the prohibition of unfair, deceptive or abusive acts or practices in connection with the offer, sale or provision of consumer financial products and services.

On October 3, 2015, the CFPB’s final rules on integrated mortgage disclosures under the Truth in Lending Act and the Real Estate Settlement Procedures Act became effective. On January 1, 2016, most requirements of the OCC’s Final Rule in Loans in Areas Having Special Flood Hazards (the Flood Final Rule) became effective, including the requirement that flood insurance premiums and fees for most mortgage loans be escrowed subject to certain exceptions. The Flood Final Rule also incorporated other existing flood insurance requirements and exceptions (e.g. the exemption from flood insurance requirements for non-residential detached structures - a discretionary item) with those portions of the Flood Final Rule becoming effective on October 1, 2015.

Throughout 2016, the CFPB continued its focus on fair lending practices of indirect automobile lenders. This focus led to some lenders to enter into consent orders with the CFPB and Department of Justice. Indirect automobile lenders have also received continued pressure from the CFPB to limit or eliminate discretionary pricing by dealers. Finally, the CFPB has implemented its larger participant rule for indirect automobile lending which brings larger non-bank indirect automobile lenders under CFPB supervision.

Banking regulatory agencies have increasingly used their authority under Section 5 of the Federal Trade Commission Act to take supervisory or enforcement action with respect to unfair or deceptive acts or practices by banks under standards developed many years ago by the Federal Trade Commission in order to address practices that may not necessarily fall within the scope of a specific banking or consumer finance law.  The Dodd-Frank Act also gave to the CFPB similar authority to take action in connection with unfair, deceptive, or abusive acts or practices by entities subject to CFPB supervisory or enforcement authority.  Banks face considerable uncertainty as to the regulatory interpretation of “abusive” practices.

Available Information

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. You can obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. 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 free of charge at our Internet web site. The address of the site is http://www.huntington.com. Except as specifically incorporated by reference into this Annual Report on Form 10-K, 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.

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Item 1A: Risk Factors

Risk Governance

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. This does not preclude engagement in select higher risk activities. Rather, the definition is intended to represent an aggregate view of where we want our overall risk to be managed.

Three board committees primarily oversee implementation of this desired risk appetite and monitoring of our risk profile:

• The Audit Committee oversees the integrity of the consolidated financial statements, including policies, procedures, and practices regarding the preparation of financial statements, the financial reporting process, disclosures, and internal control over financial reporting. The Audit Committee also provides assistance to the board in overseeing the internal audit division and the independent registered public accounting firm’s qualifications and independence; compliance with our Financial Code of Ethics for the chief executive officer and senior financial officers; and compliance with corporate securities trading policies.

• The Risk Oversight Committee assists the board of directors in overseeing management of material risks, the approval and monitoring of the Company’s capital position and plan supporting our overall aggregate moderate-to-low risk profile, the risk governance structure, compliance with applicable laws and regulations, and determining adherence to the board’s stated risk appetite. The committee has oversight responsibility with respect to the full range of inherent risks: market, credit, liquidity, legal, compliance/regulatory, operational, strategic, and reputational. This committee also oversees our capital management and planning process, ensures that the amount and quality of capital are adequate in relation to expected and unexpected risks, and that our capital levels exceed “well-capitalized” requirements.

• The Technology Committee assists the board of directors in fulfilling its oversight responsibilities with respect to all technology, cyber security, and third-party risk management strategies and plans. The committee is charged with evaluating Huntington’s capability to properly perform all technology functions necessary for its business plan, including projected growth, technology capacity, planning, operational execution, product development, and management capacity. The committee provides oversight of technology investments and plans to drive efficiency as well as to meet defined standards for risk, security, and redundancy. The Committee oversees the allocation of technology costs and ensures that they are understood by the board of directors. The Technology Committee monitors and evaluates innovation and technology trends that may affect the Company’s strategic plans, including monitoring of overall industry trends. The Technology Committee reviews and provides oversight of the company’s continuity and disaster recovery planning and preparedness.

The Audit and Risk Oversight Committees routinely hold executive sessions with our key officers engaged in accounting and risk management. On a periodic basis, the two committees meet in joint session to cover matters relevant to both, such as the construct and appropriateness of the ACL, which is reviewed quarterly. All directors have access to information provided to each committee and all scheduled meetings are open to all directors.

Further, through its Compensation Committee, the board of directors seeks to ensure its system of rewards is risk-sensitive and aligns the interests of management, creditors, and shareholders. We utilize a variety of compensation-related tools to induce appropriate behavior, including common stock ownership thresholds for the chief executive officer and certain members of senior management, a requirement to hold until retirement or exit from the Company, a portion of net shares received upon exercise of stock options or release of restricted stock awards (50% for executive officers and 25% for other award recipients), equity deferrals, recoupment provisions, and the right to terminate compensation plans at any time.

Management has implemented an Enterprise Risk Management and Risk Appetite Framework. Critically important is our self-assessment process, in which each business segment produces an analysis of its risks and the strength of its risk controls. The segment analyses are combined with assessments by our risk management organization of major risk sectors (e.g., credit, market, liquidity, operational, legal, compliance, reputational, and strategic) to produce an overall enterprise risk assessment. Outcomes of the process include a determination of the quality of the overall control process, the direction of risk, and our position compared to the defined risk appetite.

Management also utilizes a wide series of metrics (key risk indicators) to monitor risk positions throughout the Company. In general, a range for each metric is established, which allows the Company, in aggregate, to operate within an aggregate moderate-to-low risk profile. Deviations from the range will indicate if the risk being measured exceeds desired tolerance, which may then necessitate corrective action.

We also have four executive level committees to manage risk: ALCO, Credit Policy and Strategy, Risk Management, and Capital Management. Each committee focuses on specific categories of risk and is supported by a series of subcommittees that are tactical in nature. We believe this structure helps ensure appropriate escalation of issues and overall communication of strategies.

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Huntington utilizes three lines of defense with regard to risk management: (1) business segments, (2) corporate risk management, and (3) internal audit and credit review. To induce greater ownership of risk within its business segments, segment risk officers have been embedded in the business to identify and monitor risk, elevate and remediate issues, establish controls, perform self-testing, and oversee the self-assessment process. Corporate Risk Management establishes policies, sets operating limits, reviews new or modified products/processes, ensures consistency and quality assurance within the segments, and produces the enterprise risk assessment. The Chief Risk Officer has significant input into the design and outcome of incentive compensation plans as they apply to risk. Internal Audit and Credit Review provide additional assurance that risk-related functions are operating as intended.

Risk Overview

We, like other financial companies, are subject to a number of risks that may adversely affect our financial condition or results of operations, many of which are outside of our direct control, though efforts are made to manage those risks while optimizing returns. Among the risks assumed are:

•Credit risk, which is the risk of loss due to loan and lease customers or other counterparties not being able to meet their financial obligations under agreed upon terms;

•Market risk, which occurs when fluctuations in interest rates impact earnings and capital. Financial impacts are realized through changes in the interest rates of balance sheet assets and liabilities (net interest margin) or directly through valuation changes of capitalized MSR and/or trading assets (noninterest income);

•Liquidity risk, which is the risk to current or anticipated earnings or capital arising from an inability to meet obligations when they come due. Liquidity risk includes the inability to access funding sources or manage fluctuations in funding levels. Liquidity risk also results from the failure to recognize or address changes in market conditions that affect the Bank’s ability to liquidate assets quickly and with minimal loss in value;

•Operational and legal risk, which is the risk of loss arising from inadequate or failed internal processes or systems, human errors or misconduct, or adverse external events. Operational losses result from internal fraud; external fraud, inadequate or inappropriate employment practices and workplace safety, failure to meet professional obligations involving customers, products, and business practices, damage to physical assets, business disruption and systems failures, and failures in execution, delivery, and process management.  Legal risk includes, but is not limited to, exposure to orders, fines, penalties, or punitive damages resulting from litigation, as well as regulatory actions;

•Compliance risk, which exposes us to money penalties, enforcement actions or other sanctions as a result of non-conformance with laws, rules, and regulations that apply to the financial services industry; and

•Strategic risk, which is defined as risk to current or anticipated earnings, capital, or enterprise value arising from adverse business decisions, improper implementation of business decisions or lack of responsiveness to industry / market changes.

We also expend considerable effort to protect our reputation. Reputation risk does not easily lend itself to traditional methods of measurement. Rather, we closely monitor it through processes such as new product / initiative reviews, colleague and client surveys, monitoring media tone, periodic discussions between management and our board, and other such efforts.

In addition to the other information included or incorporated by reference into this report, readers should carefully consider that the following important factors, among others, could negatively impact our business, future results of operations, and future cash flows materially.

Credit Risks:

1. Our ACL level may prove to be inappropriate or be negatively affected by credit risk exposures which could adversely affect our net income and capital.

Our business depends on the creditworthiness of our customers. Our ACL of $736 million at December 31, 2016, represented Management’s estimate of probable losses inherent in our loan and lease portfolio as well as our unfunded loan commitments and letters of credit. We regularly review our ACL for appropriateness. In doing so, we consider economic conditions and trends, collateral values, and credit quality indicators, such as past charge-off experience, levels of past due loans, and NPAs. There is no certainty that our ACL will be appropriate over time to cover losses in the portfolio because of unanticipated adverse changes in the economy, market conditions, or events adversely affecting specific customers, industries, or markets. If the credit quality of our customer base materially decreases, if the risk profile of a market, industry, or group of customers changes materially, or if the ACL is not appropriate, our net income and capital could be materially adversely affected, which could have a material adverse effect on our financial condition and results of operations.

In addition, regulatory review of risk ratings and loan and lease losses may impact the level of the ACL and could have a material adverse effect on our financial condition and results of operations.

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2. Weakness in economic conditions could adversely affect our business.

Our performance could be negatively affected to the extent there is deterioration in business and economic conditions which have direct or indirect material adverse impacts on us, our customers, and our counterparties. These conditions could result in one or more of the following:

• A decrease in the demand for loans and other products and services offered by us;

• A decrease in customer savings generally and in the demand for savings and investment products offered by us; and

• An increase in the number of customers and counterparties who become delinquent, file for protection under bankruptcy laws, or default on their loans or other obligations to us.

An increase in the number of delinquencies, bankruptcies, or defaults could result in a higher level of NPAs, NCOs, provision for credit losses, and valuation adjustments on loans held for sale. The markets we serve are dependent on industrial and manufacturing businesses and, thus, are particularly vulnerable to adverse changes in economic conditions affecting these sectors.

Market Risks:

1. Changes in interest rates could reduce our net interest income, reduce transactional income, and negatively impact the value of our loans, securities, and other assets. This could have an adverse impact on our cash flows, financial condition, results of operations, and capital.

Our results of operations depend substantially on net interest income, which is the difference between interest earned on interest earning assets (such as investments and loans) and interest paid on interest bearing liabilities (such as deposits and borrowings). Interest rates are highly sensitive to many factors, including governmental monetary policies and domestic and international economic and political conditions. Conditions such as inflation, deflation, recession, unemployment, money supply, and other factors beyond our control may also affect interest rates. If our interest earning assets mature or reprice faster than interest bearing liabilities in a declining interest rate environment, net interest income could be materially adversely impacted. Likewise, if interest bearing liabilities mature or reprice more quickly than interest earning assets in a rising interest rate environment, net interest income could be adversely impacted.

Changes in interest rates can affect the value of loans, securities, assets under management, and other assets, including mortgage and nonmortgage servicing rights. An increase in interest rates that adversely affects the ability of borrowers to pay the principal or interest on loans and leases may lead to an increase in NPAs and a reduction of income recognized, which could have a material adverse effect on our results of operations and cash flows. When we place a loan on nonaccrual status, we reverse any accrued but unpaid interest receivable, which decreases interest income. However, we continue to incur interest expense as a cost of funding NALs without any corresponding interest income. In addition, transactional income, including trust income, brokerage income, and gain on sales of loans can vary significantly from period-to-period based on a number of factors, including the interest rate environment. A decline in interest rates along with a flattening yield curve limits our ability to reprice deposits given the current historically low level of interest rates and could result in declining net interest margins if longer duration assets reprice faster than deposits.

Rising interest rates reduce the value of our fixed-rate securities and cash flow hedging derivatives portfolio. Any unrealized loss from these portfolios impacts OCI, shareholders’ equity, and the Tangible Common Equity ratio. Any realized loss from these portfolios impacts regulatory capital ratios. In a rising interest rate environment, pension and other post-retirement obligations somewhat mitigate negative OCI impacts from securities and financial instruments. For more information, refer to “Market Risk” of the MD&A.

Certain investment securities, notably mortgage-backed securities, are very sensitive to rising and falling rates. Generally, when rates rise, prepayments of principal and interest will decrease and the duration of mortgage-backed securities will increase. Conversely, when rates fall, prepayments of principal and interest will increase and the duration of mortgage-backed securities will decrease. In either case, interest rates have a significant impact on the value of mortgage-backed securities.

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.

In addition to volatility associated with interest rates, the Company also has exposure to equity markets related to the investments within the benefit plans and other income from client based transactions.

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2. Industry competition may have an adverse effect on our success.

Our profitability depends on our ability to compete successfully. We operate in a highly competitive environment, and we expect competition to intensify. Certain of our competitors are larger and have more resources than we do, enabling them to be more aggressive than us in competing for loans and deposits. In our market areas, we face competition from other banks and financial service companies that offer similar services. Some of our non-bank competitors are not subject to the same extensive regulations we are and, therefore, may have greater flexibility in competing for business. Our ability to compete successfully depends on a number of factors, including customer convenience, quality of service by investing in new products and services, personal contacts, pricing, and range of products. If we are unable to successfully compete for new customers and retain our current customers, our business, financial condition, or results of operations may be adversely affected. In particular, if we experience an outflow of deposits as a result of our customers seeking investments with higher yields or greater financial stability, or a desire to do business with our competitors, we may be forced to rely more heavily on borrowings and other sources of funding to operate our business and meet withdrawal demands, thereby adversely affecting our net interest margin.  For more information, refer to “Competition” section of Item 1: Business.

Liquidity Risks:

1. Changes in either Huntington’s financial condition or in the general banking industry could result in a loss of depositor confidence.

Liquidity is the ability to meet cash flow needs on a timely basis at a reasonable cost. The Bank uses its liquidity to extend credit and to repay liabilities as they become due or as demanded by customers. The board of directors establishes liquidity policies, including contingency funding plans, and limits and management establishes operating guidelines for liquidity.

Our primary source of liquidity is our large supply of deposits from consumer and commercial customers. The continued availability of this supply depends on customer willingness to maintain deposit balances with banks in general and us in particular. The availability of deposits can also be impacted by regulatory changes (e.g. changes in FDIC insurance, the Liquidity Coverage Ratio, etc.), and other events which can impact the perceived safety or economic benefits of bank deposits. While we make significant efforts to consider and plan for hypothetical disruptions in our deposit funding, market related, geopolitical, or other events could impact the liquidity derived from deposits.

2. We are a holding company and depend on dividends by our subsidiaries for most of our funds.

Huntington is an entity separate and distinct from the Bank. The Bank conducts most of our operations and Huntington depends upon dividends from the Bank to service Huntington's debt and to pay dividends to Huntington's shareholders. The availability of dividends from the Bank is limited by various statutes and regulations. It is possible, depending upon the financial condition including liquidity and capital adequacy of the Bank and other factors, that the OCC could limit the payment of dividends or other payments by the Bank. In addition, the payment of dividends by our other subsidiaries is also subject to the laws of the subsidiary’s state of incorporation, and regulatory capital and liquidity requirements applicable to such subsidiaries. In the event that the Bank was unable to pay dividends to us, we in turn would likely have to reduce or stop paying dividends on our Preferred and Common Stock. Our failure to pay dividends on our Preferred and Common Stock could have a material adverse effect on the market price of our Common Stock. Additional information regarding dividend restrictions is provided in Item 1. Regulatory Matters.

3. If we lose access to capital markets, we may not be able to meet the cash flow requirements of our depositors, creditors, and borrowers, or have the operating cash needed to fund corporate expansion and other corporate activities.

Wholesale funding sources include securitization, federal funds purchased, securities sold under repurchase agreements, non-core deposits, and long-term debt. The Bank is also a member of the Federal Home Loan Bank of Cincinnati, which provides members access to funding through advances collateralized with mortgage-related assets. We maintain a portfolio of highly-rated, marketable securities that is available as a source of liquidity.

Capital markets disruptions can directly impact the liquidity of Huntington and the Bank. The inability to access capital markets funding sources as needed could adversely impact our financial condition, results of operations, cash flows, and level of regulatory-qualifying capital. We may, from time-to-time, consider using our existing liquidity position to opportunistically retire outstanding securities in privately negotiated or open market transactions.

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4. A reduction in our credit rating could adversely affect our ability to raise funds including capital, and/or the holders of our securities.

The credit rating agencies regularly evaluate Huntington and the Bank, and credit ratings are based on a number of factors, including our financial strength and ability to generate earnings, as well as factors not entirely within our control, including conditions affecting the financial services industry, the economy, and changes in rating methodologies. There can be no assurance that we will maintain our current credit ratings. A downgrade of the credit ratings of Huntington or the Bank could adversely affect our access to liquidity and capital, and could significantly increase our cost of funds, trigger additional collateral or funding requirements, and decrease the number of investors and counterparties willing to lend to us or purchase our securities. This could affect our growth, profitability and financial condition, including liquidity.

Operational and Legal Risks:

1. We face security risks, including denial of service attacks, hacking, social engineering attacks targeting our colleagues and customers, malware intrusion or data corruption attempts, and identity theft that could result in the disclosure of confidential information, adversely affect our business or reputation, and create significant legal and financial exposure.

Our computer systems and network infrastructure are subject to security risks and could be susceptible to cyber-attacks, such as denial of service attacks, hacking, terrorist activities or identity theft. Financial services institutions and companies engaged in data processing have reported breaches in the security of their websites or other systems, some of which have involved sophisticated and targeted attacks intended to obtain unauthorized access to confidential information, destroy data, disable or degrade service, or sabotage systems, often through the introduction of computer viruses or malware, cyber-attacks and other means. Denial of service attacks have been launched against a number of large financial services institutions, including us. None of these events against us resulted in a breach of our client data or account information; however, the performance of our website, www.huntington.com, was adversely affected, and in some instances customers were prevented from accessing our website. We expect to be subject to similar attacks in the future. While events to date primarily resulted in inconvenience, future cyber-attacks could be more disruptive and damaging. Hacking and identity theft risks, in particular, could cause serious reputational harm. Cyber threats are rapidly evolving and we may not be able to anticipate or prevent all such attacks and could be held liable for any security breach or loss.

Despite efforts to ensure the integrity of our systems, we may not be able to anticipate all security breaches of these types, nor may we be able to implement guaranteed preventive measures against such security breaches. Persistent attackers may succeed in penetrating defenses given enough resources, time, and motive. The techniques used by cyber criminals change frequently, may not be recognized until launched and can originate from a wide variety of sources, including outside groups such as external service providers, organized crime affiliates, terrorist organizations or hostile foreign governments. These risks may increase in the future as we continue to increase our mobile-payment and other internet-based product offerings and expand our internal usage of web-based products and applications.

Even the most advanced internal control environment may be vulnerable to compromise. Targeted social engineering attacks and "spear phishing" attacks are becoming more sophisticated and are extremely difficult to prevent. The successful social engineer will attempt to fraudulently induce colleagues, customers or other users of our systems to disclose sensitive information in order to gain access to its data or that of its clients.

A successful penetration or circumvention of system security could cause us serious negative consequences, including significant disruption of operations, misappropriation of confidential information, or damage to our computers or systems or those of our customers and counterparties. A successful security breach could result in violations of applicable privacy and other laws, financial loss to us or to our customers, loss of confidence in our security measures, significant litigation exposure, and harm to our reputation, all of which could have a material adverse effect on the Company.

2. The resolution of significant pending litigation, if unfavorable, could have an adverse effect on our results of operations for a particular period.

We face legal risks in our businesses, and the volume of claims and amount of damages and penalties claimed in litigation and regulatory proceedings against financial institutions remain high. Substantial legal liability against us could have material adverse financial effects or cause significant reputational harm to us, which in turn could seriously harm our business prospects. It is possible that the ultimate resolution of these matters, if unfavorable, may be material to the results of operations for a particular reporting period.

Note 21 of the Notes to Consolidated Financial Statements updates the status of certain material litigation including litigation related to the bankruptcy of Cyberco Holdings, Inc.

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3. We face significant operational risks which could lead to financial loss, expensive litigation, and loss of confidence by our customers, regulators, and capital markets.

We are exposed to many types of operational risks, including the risk of fraud or theft by colleagues or outsiders, unauthorized transactions by colleagues or outsiders, operational errors by colleagues, business disruption, and system failures. Huntington executes against a significant number of controls, a large percent of which are manual and dependent on adequate execution by colleagues and third-party service providers. There is inherent risk that unknown single points of failure through the execution chain could give rise to material loss through inadvertent errors or malicious attack. These operational risks could lead to financial loss, expensive litigation, and loss of confidence by our customers, regulators, and the capital markets.

Moreover, negative public opinion can result from our actual or alleged conduct in any number of activities, including clients, products and business practices; corporate governance; acquisitions; and from actions taken by government regulators and community organizations in response to those activities. Negative public opinion can adversely affect our ability to attract and retain customers and can also expose us to litigation and regulatory action.

Relative to acquisitions, we incur risks and challenges associated with the integration of employees, accounting systems, and technology platforms from acquired businesses and institutions in a timely and efficient manner, and we cannot guarantee that we will be successful in retaining existing customer relationships or achieving anticipated operating efficiencies expected from such acquisitions.  Acquisitions may be subject to the receipt of approvals from certain governmental authorities, including the Federal Reserve, the OCC, and the United States Department of Justice, as well as the approval of our shareholders and the shareholders of companies that we seek to acquire. These approvals for acquisitions may not be received, may take longer than expected, or may impose conditions that are not presently anticipated or that could have an adverse effect on the combined company following the acquisitions. Subject to requisite regulatory approvals, future business acquisitions may result in the issuance and payment of additional shares of stock, which would dilute current shareholders’ ownership interests.  Additionally, acquisitions may involve the payment of a premium over book and market values. Therefore, dilution of our tangible book value and net income per common share could occur in connection with any future transaction.

4. Failure to maintain effective internal controls over financial reporting could impair our ability to accurately and timely report our financial results or prevent fraud, resulting in loss of investor confidence and adversely affecting our business and our stock price.

Effective internal controls over financial reporting are necessary to provide reliable financial reports and prevent fraud. We are subject to regulation that focuses on effective internal controls and procedures. Such controls and procedures are modified, supplemented, and changed from time-to-time as necessitated by our growth and in reaction to external events and developments. Any failure to maintain an effective internal control environment could impact our ability to report our financial results on an accurate and timely basis, which could result in regulatory actions, loss of investor confidence, and an adverse impact on our business and our stock price.

5. We rely on quantitative models to measure risks and to estimate certain financial values.

Quantitative models may be used to help manage certain aspects of our business and to assist with certain business decisions, including estimating probable loan losses, measuring the fair value of financial instruments when reliable market prices are unavailable, estimating the effects of changing interest rates and other market measures on our financial condition and results of operations, managing risk, and for capital planning purposes (including during the CCAR capital planning and capital adequacy process). Our measurement methodologies rely on many assumptions, historical analyses, and correlations. These assumptions may not capture or fully incorporate conditions leading to losses, particularly in times of market distress, and the historical correlations on which we rely may no longer be relevant. Additionally, as businesses and markets evolve, our measurements may not accurately reflect this evolution. Even if the underlying assumptions and historical correlations used in our models are adequate, our models may be deficient due to errors in computer code, inaccurate data, misuse of data, or the use of a model for a purpose outside the scope of the model’s design.

All models have certain limitations. Reliance on models presents the risk that our business decisions based on information incorporated from models will be adversely affected due to incorrect, missing, or misleading information. In addition, our models may not capture or fully express the risks we face, may suggest that we have sufficient capitalization when we do not, or may lead us to misjudge the business and economic environment in which we will operate. If our models fail to produce reliable results on an ongoing basis, we may not make appropriate risk management, capital planning, or other business or financial decisions. Strategies that we employ to manage and govern the risks associated with our use of models may not be effective or fully reliable. Also, information that we provide to the public or regulators based on poorly designed models could be inaccurate or misleading.

Banking regulators continue to focus on the models used by banks and bank holding companies in their businesses. Some of our decisions that the regulators evaluate, including distributions to our shareholders, could be affected adversely due to their perception that the quality of the models used to generate the relevant information is insufficient.

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6. We rely on third parties to provide key components of our business infrastructure.

We rely on third-party service providers to leverage subject matter expertise and industry best practice, provide enhanced products and services, and reduce costs. Although there are benefits in entering into third-party relationships with vendors and others, there are risks associated with such activities. When entering a third-party relationship, the risks associated with that activity are not passed to the third-party but remain our responsibility. The Technology Committee of the board of directors provides oversight related to the overall risk management process associated with third-party relationships. Management is accountable for the review and evaluation of all new and existing third-party relationships. Management is responsible for ensuring that adequate controls are in place to protect us and our customers from the risks associated with vendor relationships.

Increased risk could occur based on poor planning, oversight, control, and inferior performance or service on the part of the third-party, and may result in legal costs or loss of business. While we have implemented a vendor management program to actively manage the risks associated with the use of third-party service providers, any problems caused by third-party service providers could adversely affect our ability to deliver products and services to our customers and to conduct our business. Replacing a third-party service provider could also take a long period of time and result in increased expenses.

7. Changes in accounting policies, standards, and interpretations could affect how we report our financial condition and results of operations.

The FASB, regulatory agencies, and other bodies that establish accounting standards periodically change the financial accounting and reporting standards governing the preparation of our financial statements. Additionally, those bodies that establish and interpret the accounting standards (such as the FASB, SEC, and banking regulators) may change prior interpretations or positions on how these standards should be applied. These changes can be difficult to predict and can materially affect how we record and report our financial condition and results of operations.

For further discussion, see Note 2 of the Notes to Consolidated Financial Statements.

8. Impairment of goodwill could require charges to earnings, which could result in a negative impact on our results of operations.

Our goodwill could become impaired in the future. If goodwill were to become impaired, it could limit the ability of the Bank to pay dividends to Huntington Bancshares Incorporated, adversely impacting Huntington Bancshares Incorporated's liquidity and ability to pay dividends or repay debt. The most significant assumptions affecting our goodwill impairment evaluation are variables including the market price of our Common Stock, projections of earnings, and the control premium above our current stock price that an acquirer would pay to obtain control of us. We are required to test goodwill for impairment at least annually or when impairment indicators are present. If an impairment determination is made in a future reporting period, our earnings and book value of goodwill will be reduced by the amount of the impairment. If an impairment loss is recorded, it will have little or no impact on the tangible book value of our Common Stock, or our regulatory capital levels, but such an impairment loss could significantly reduce the Bank’s earnings and thereby restrict the Bank's ability to make dividend payments to us without prior regulatory approval, because Federal Reserve policy states the bank holding company dividends should be paid from current earnings. At December 31, 2016, the book value of our goodwill was $2.0 billion, all of which was recorded at the Bank. Any such write down of goodwill or other acquisition related intangibles will reduce Huntington’s earnings, as well.

9. Negative publicity could damage our reputation and could significantly harm our business.

Our ability to attract and retain customers, clients, investors, and highly-skilled management and employees is affected by our reputation. Public perception of the financial services industry in general was damaged as a result of the credit crisis that started in 2008. We face increased public and regulatory scrutiny resulting from the credit crisis and economic downturn. Significant harm to our reputation can also arise from other sources, including employee misconduct, actual or perceived unethical behavior, conflicts of interest, litigation, GSE or regulatory actions, failing to deliver minimum or required standards of service and quality, failing to address customer and agency complaints, compliance failures, unauthorized release of confidential information due to cyber-attacks or otherwise, and the activities of our clients, customers and counterparties, including vendors. Actions by the financial service industry generally or by institutions or individuals in the industry can adversely affect our reputation, indirectly by association. All of these could adversely affect our growth, results of operation and financial condition.

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Compliance Risks:

1. Bank regulations regarding capital and liquidity, including the annual CCAR assessment process and the Basel III capital and liquidity standards, could require higher levels of capital and liquidity. Among other things, these regulations could impact our ability to pay common stock dividends, repurchase common stock, attract cost-effective sources of deposits, or require the retention of higher amounts of low yielding securities.

The Federal Reserve administers the annual CCAR, an assessment of the capital adequacy of bank holding companies with consolidated assets of $50 billion or more and of the practices used by covered banks to assess capital needs. Under CCAR, the Federal Reserve makes a qualitative assessment of capital adequacy on a forward-looking basis and reviews the strength of a bank holding company’s capital adequacy process. The Federal Reserve also makes a quantitative assessment of capital based on supervisory-run stress tests that assess the ability to maintain capital levels above each minimum regulatory capital ratio and above a CET1 ratio of 4.5%, after making all capital actions included in a bank holding company’s capital plan, under baseline and stressful conditions throughout a nine-quarter planning horizon. Capital plans for 2017 are required to be submitted by April 5, 2017, and the Federal Reserve will either object to the capital plan and/or planned capital actions, or provide a notice of non-objection, no later than June 30, 2017. We intend to submit our capital plan to the Federal Reserve on or before April 5, 2017. The Bank also must submit a capital plan to the OCC on or before April 5, 2017. There can be no assurance that the Federal Reserve will respond favorably to our capital plan, capital actions or stress test and the Federal Reserve, OCC, or other regulatory capital requirements may limit or otherwise restrict how we utilize our capital, including common stock dividends and stock repurchases.

In 2013, the Federal Reserve and the OCC adopted final rules to implement the Basel III capital rules for U.S. Banking organizations. The final rules establish an integrated regulatory capital framework and will implement in the United States the Basel III regulatory capital reforms from the Basel Committee on Banking Supervision and certain changes required by the Dodd-Frank Act. Under the final rule, minimum requirements will increase for both the quantity and quality of capital held by banking organizations. As a Standardized Approach institution, the Basel III minimum capital requirements became effective for us on January 1, 2015, and will be fully phased-in on January 1, 2019.

On September 3, 2014, the U.S. banking regulators approved a final rule to implement a minimum LCR requirement for banking organizations with total consolidated assets of $250 billion or more, and a less stringent modified LCR requirement to depository institution holding companies below the threshold but with total consolidated assets of $50 billion or more. The LCR requires covered banking organizations to maintain HQLA equal to projected stressed cash outflows over a 30 calendar-day stress scenario. We are covered by the modified LCR requirement and therefore subject to the phase-in of the rule which, as of January 2017, is at 100%. We will also be required to calculate the LCR monthly. The LCR assigns less severe outflow assumptions to certain types of customer deposits, which should increase the demand, and perhaps the cost, among banks for these deposits. Additionally, the HQLA requirements will increase the demand for direct US government and US government- guaranteed debt that, while high quality, generally carry lower yields than other securities that banks hold in their investment portfolios.

2. If our regulators deem it appropriate, they can take regulatory actions that could result in a material adverse impact on our financial results, ability to compete for new business, or preclude mergers or acquisitions. In addition, regulatory actions could constrain our ability to fund our liquidity needs or pay dividends. Any of these actions could increase the cost of our services.

We are subject to the supervision and regulation of various state and federal regulators, including the OCC, Federal Reserve, FDIC, SEC, CFPB, Financial Industry Regulatory Authority, and various state regulatory agencies. As such, we are subject to a wide variety of laws and regulations, many of which are discussed in Item 1. Regulatory Matters. As part of their supervisory process, which includes periodic examinations and continuous monitoring, the regulators have the authority to impose restrictions or conditions on our activities and the manner in which we manage the organization. Such actions could negatively impact us in a variety of ways, including charging monetary fines, impacting our ability to pay dividends, precluding mergers or acquisitions, limiting our ability to offer certain products or services, or imposing additional capital requirements.

Under the supervision of the CFPB, our consumer products and services are subject to increasing regulatory oversight and scrutiny with respect to compliance under consumer laws and regulations. We may face a greater number or wider scope of investigations, enforcement actions, and litigation in the future related to consumer practices, thereby increasing costs associated with responding to or defending such actions. In addition, increased regulatory inquiries and investigations, as well as any additional legislative or regulatory developments affecting our consumer businesses, and any required changes to our business operations resulting from these developments, could result in significant loss of revenue, require remuneration to our customers, trigger fines or penalties, limit the products or services we offer, require us to increase our prices and, therefore, reduce demand for our products, impose additional compliance costs on us, cause harm to our reputation, or otherwise adversely affect our consumer businesses.

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3. Legislative and regulatory actions taken now or in the future that impact the financial industry may materially adversely affect us by increasing our costs, adding complexity in doing business, impeding the efficiency of our internal business processes, negatively impacting the recoverability of certain of our recorded assets, requiring us to increase our regulatory capital, limiting our ability to pursue business opportunities, and otherwise resulting in a material adverse impact on our financial condition, results of operation, liquidity, or stock price.

The Dodd-Frank Act was a comprehensive overhaul of the financial services industry within the United States, established the CFPB, and required the CFPB and other federal agencies to implement many new and significant rules and regulations. Compliance with these new laws and regulations have and will continue to result in additional costs, which could be significant, and may have a material and adverse effect on our results of operations. In addition, if we do not appropriately comply with current or future legislation and regulations that apply to our consumer operations, we may be subject to fines, penalties or judgments, or material regulatory restrictions on our businesses, which could adversely affect operations and, in turn, financial results.

4. We may become subject to more stringent regulatory requirements and activity restrictions if the Federal Reserve and FDIC determine that our resolution plan is not credible.

The Dodd-Frank Act and implementing regulations jointly issued by Federal Reserve and the FDIC require bank holding companies with more than $50 billion in assets to annually submit a resolution plan to the Federal Reserve and the FDIC that, in the event of material financial distress or failure, establish the rapid, orderly resolution of the Company under the U.S. Bankruptcy Code. If the Federal Reserve and the FDIC jointly determine that our 2015 resolution plan is not “credible,” we could become subjected to more stringent capital, leverage or liquidity requirements or restrictions, or restrictions on our growth, activities or operations, and could eventually be required to divest certain assets or operations in ways that could negatively impact its operations and strategy.

5. Our business, financial condition, and results of operations could be adversely affected if we lose our financial holding company status.

In order for us to maintain our status as a financial holding company, we and the Bank must remain “well capitalized,” and “well managed.” If we or our Bank cease to meet the requirements necessary for us to continue to qualify as a financial holding company, the Federal Reserve may impose upon us corrective capital and managerial requirements, and may place limitations on our ability to conduct all of the business activities that we conduct as a financial holding company. If the failure to meet these standards persists, we could be required to divest our Bank, or cease all activities other than those activities that may be conducted by bank holding companies that are not financial holding companies. In addition, our ability to commence or engage in certain activities as a financial holding company will be restricted if the Bank fails to maintain at least a “Satisfactory” rating on its most recent Community Reinvestment Act examination.

Item 1B: Unresolved Staff Comments

None.

Item 2: Properties

Our headquarters, as well as the Bank’s, is located in the Huntington Center, a thirty seven story office building located in Columbus, Ohio. Of the building’s total office space available, we lease approximately 22%. The lease term expires in 2030, with six five-year renewal options for up to 30 years but with no purchase option. The Bank has an indirect minority equity interest of 18.4% in the building.

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Our other major properties consist of the following:

Description	Location	Own	Lease
13 story office building, located adjacent to the Huntington Center	Columbus, Ohio	ü
12 story office building, located adjacent to the Huntington Center	Columbus, Ohio	ü
3 story office building - the Crosswoods building (1)	Columbus, Ohio		ü
A portion of 200 Public Square Building	Cleveland, Ohio		ü
12 story office building	Youngstown, Ohio	ü
10 story office building	Warren, Ohio		ü
10 story office building	Toledo, Ohio	ü
A portion of the Grant Building	Pittsburgh, Pennsylvania		ü
18 story office building	Charleston, West Virginia		ü
3 story office building	Holland, Michigan		ü
2 building office complex	Troy, Michigan		ü
Data processing and operations center (Easton)	Columbus, Ohio	ü
Data processing and operations center (Northland) (1)	Columbus, Ohio		ü
Data processing and operations center (Parma)	Cleveland, Ohio		ü
8 story office building	Indianapolis, Indiana	ü
A portion of Huntington Center at 525 Vine	Cincinnati, OH		ü
A portion of 222 LaSalle St.	Chicago, IL		ü
A portion of Two Towne Square	Southfield, MI		ü
7 story office building	Akron, OH		ü
27 story office building	Akron, OH		ü
Operations Center	Akron, OH		ü
12 story office building	Saginaw, MI		ü
2 building office complex	Flint, MI		ü
4 story office building	Melrose Park, IL		ü

(1) During the 2016 fourth quarter, we announced our intent to vacate these properties and invest in a facility in Columbus, Ohio.

Item 3: Legal Proceedings

Information required by this item is set forth in Note 21 of the Notes to Consolidated Financial Statements under the caption "Litigation" and is incorporated into this Item by reference.

Item 4: Mine Safety Disclosures

Not applicable.

PART II

Item 5: Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities

The common stock of Huntington Bancshares Incorporated is traded on the NASDAQ Stock Market under the symbol “HBAN”. The stock is listed as “HuntgBcshr” or “HuntBanc” in most newspapers. As of January 31, 2017, we had 34,831 shareholders of record.

Information regarding the high and low sale prices of our common stock and cash dividends declared on such shares, as required by this Item, is set forth in Tables 46 and 48 Selected Quarterly Income Statement Data and is incorporated into this Item by reference. Information regarding restrictions on dividends, as required by this Item, is set forth in Item 1: Business - Regulatory Matters and in Note 22 of the Notes to Consolidated Financial Statements and incorporated into this Item by reference.

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The following graph shows the changes, over the five-year period, in the value of $100 invested in (i) shares of Huntington’s Common Stock; (ii) the Standard & Poor’s 500 Stock Index (the S&P 500 Index) and (iii) Keefe, Bruyette & Woods Bank Index, for the period December 31, 2011, through December 31, 2016. The KBW Bank Index is a market capitalization-weighted bank stock index published by Keefe, Bruyette & Woods. The index is composed of the largest banking companies and includes all money center banks and regional banks, including Huntington. An investment of $100 on December 31, 2011, and the reinvestment of all dividends, are assumed. The plotted points represent the cumulative total return on the last trading day of the fiscal year indicated.

	2011	2012	2013	2014	2015	2016
HBAN	$100	$116	$180	$200	$215	$265
S&P 500	$100	$114	$151	$172	$174	$195
KBW Bank Index	$100	$129	$177	$194	$195	$251

For information regarding securities authorized for issuance under Huntington's equity compensation plans, see Part III, Item 12.

During the three-month period ended December 31, 2016, Huntington did not repurchase any of its common stock. The approximate dollar value of common stock that may yet be purchased under publicly announced stock repurchase authorizations was $166 million.

On June 29, 2016, Huntington announced that the Federal Reserve did not object to the proposed capital actions included in Huntington's capital plan submitted to the Federal Reserve in April 2016 as part of the 2016 CCAR. These actions included an increase in the quarterly dividend per common share to $0.08, starting in the fourth quarter of 2016. Huntington’s capital plan also included the issuance of capital in connection with the acquisition of FirstMerit Corporation and continues the previously announced suspension of the company’s 2015 share repurchase program.

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Item 6: Selected Financial Data
Table 1 - Selected Annual Income Statement Data (1)
(dollar amounts in thousands, except per share amounts)
	Year Ended December 31,
	2016			2015			2014			2013			2012
Interest income	$	2,632,113		$	2,114,521		$	1,976,462		$	1,860,637		$	1,930,263
Interest expense	262,795			163,784			139,321			156,029			219,739
Net interest income	2,369,318			1,950,737			1,837,141			1,704,608			1,710,524
Provision for credit losses	190,802			99,954			80,989			90,045			147,388
Net interest income after provision for credit losses	2,178,516			1,850,783			1,756,152			1,614,563			1,563,136
Noninterest income	1,149,731			1,038,730			979,179			1,012,196			1,106,321
Noninterest expense	2,408,485			1,975,908			1,882,346			1,758,003			1,835,876
Income before income taxes	919,762			913,605			852,985			868,756			833,581
Provision for income taxes	207,941			220,648			220,593			227,474			202,291
Net income	711,821			692,957			632,392			641,282			631,290
Dividends on preferred shares	65,274			31,873			31,854			31,869			31,989
Net income applicable to common shares	$	646,547		$	661,084		$	600,538		$	609,413		$	599,301
Net income per common share—basic	$	0.72		$	0.82		$	0.73		$	0.73		$	0.70
Net income per common share—diluted	0.70			0.81			0.72			0.72			0.69
Cash dividends declared per common share	0.29			0.25			0.21			0.19			0.16
Balance sheet highlights
Total assets (period end)	$	99,714,097		$	71,018,301		$	66,283,130		$	59,454,113		$	56,131,660
Total long-term debt (period end)	8,309,159			7,041,364			4,321,082			2,445,493			1,356,570
Total shareholders’ equity (period end)	10,308,146			6,594,606			6,328,170			6,090,153			5,778,500
Average total assets	83,054,283			68,560,023			62,483,232			56,289,181			55,661,162
Average total long-term debt	8,048,477			5,585,458			3,479,438			1,661,169			1,975,990
Average total shareholders’ equity	8,391,361			6,536,018			6,269,884			5,914,914			5,671,455
Key ratios and statistics
Margin analysis—as a % of average earnings assets
Interest income(2)	3.50		%	3.41		%	3.47		%	3.66		%	3.85		%
Interest expense	0.34			0.26			0.24			0.30			0.44
Net interest margin(2)	3.16		%	3.15		%	3.23		%	3.36		%	3.41		%
Return on average total assets	0.86		%	1.01		%	1.01		%	1.14		%	1.13		%
Return on average common shareholders’ equity	8.6			10.7			10.2			11.0			11.3
Return on average tangible common shareholders’ equity(3), (7)	10.7			12.4			11.8			12.7			13.3
Efficiency ratio(4)	66.8			64.5			65.1			62.6			63.2
Dividend payout ratio	40.3			30.5			28.8			26.0			22.9
Average shareholders’ equity to average assets	10.10			9.53			10.03			10.51			10.19
Effective tax rate	22.6			24.2			25.9			26.2			24.3
Non-regulatory capital
Tangible common equity to tangible assets (period end) (5), (7)	7.16			7.82			8.17			8.82			8.74
Tangible equity to tangible assets (period end)(6), (7)	8.26			8.37			8.76			9.48			9.44
Tier 1 common risk-based capital ratio (period end)(7), (8)	N.A.			N.A.			10.23			10.90			10.48
Tier 1 leverage ratio (period end)(9), (10)	N.A.			N.A.			9.74			10.67			10.36
Tier 1 risk-based capital ratio (period end)(9), (10)	N.A.			N.A.			11.50			12.28			12.02
Total risk-based capital ratio (period end)(9), (10)	N.A.			N.A.			13.56			14.57			14.50
Capital under current regulatory standards (Basel III)
Common equity tier 1 risk-based capital ratio	9.56			9.79		%	N.A.			N.A.			N.A.
Tier 1 leverage ratio (period end)	8.70			8.79		%	N.A.			N.A.			N.A.
Tier 1 risk-based capital ratio (period end)	10.92			10.53		%	N.A.			N.A.			N.A.
Total risk-based capital ratio (period end)	13.05			12.64		%	N.A.			N.A.			N.A.
Other data
Full-time equivalent employees (average)	15,993			12,243			11,873			11,964			11,494
Domestic banking offices (period end)	1,115			777			729			711			705

(1) Comparisons for presented periods are impacted by a number of factors. Refer to the "Significant Items" in the Discussion of Results of Operations for additional discussion regarding these key factors.

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(2) On an FTE basis assuming a 35% tax rate.

(3) Net income applicable to common shares excluding expense for amortization of intangibles for the period divided by average tangible shareholders’ equity. Average tangible shareholders’ equity equals average total 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.

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

(5) Tangible common equity (total common equity less goodwill and other intangible assets) divided by tangible assets (total assets less goodwill and other intangible assets). Other intangible assets are net of deferred tax and calculated assuming a 35% tax rate. (Non-GAAP)

(6) Tangible equity (total equity less goodwill and other intangible assets) divided by tangible assets (total assets less goodwill and other intangible assets). Other intangible assets are net of deferred tax and calculated assuming a 35% tax rate.

(7) Tier 1 common equity, tangible equity, tangible common equity, and tangible assets are non-GAAP financial measures. Additionally, any ratios utilizing these financial measures are also non-GAAP. These financial measures have been included as they are considered to be critical metrics with which to analyze and evaluate financial condition and capital strength. Other companies may calculate these financial measures differently.

(8) In accordance with applicable regulatory reporting guidance, we are not required to retrospectively update historical filings for newly adopted accounting principles. Therefore, tier 1 capital, tier 1 common equity, and risk-weighted assets have not been updated for the adoption of ASU 2014-01.

(9) In accordance with applicable regulatory reporting guidance, we are not required to retrospectively update historical filings for newly adopted accounting principles. Therefore, regulatory capital data has not been updated for the adoption of ASU 2014-01.

(10) Ratios are calculated on the Basel I basis.

N.A. On January 1, 2015, we became subject to the Basel III capital requirements and the standardized approach for calculating risk-weighted assets in accordance with subpart D of the final capital rule.

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Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations

INTRODUCTION

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 should be read in conjunction with the Consolidated Financial Statements, Notes to Consolidated Financial Statements, and other information contained in this report. The forward-looking statements in this section and other parts of this report involve assumptions, risks, uncertainties, and other factors, including statements regarding our plans, objectives, goals, strategies, and financial performance. Our actual results could differ materially from the results anticipated in these forward-looking statements as a result of factors set forth under the caption "Forward-Looking Statements" and those set forth in Item 1A.

EXECUTIVE OVERVIEW

Business Combinations

On August 16, 2016, Huntington completed its acquisition of FirstMerit Corporation in a stock and cash transaction valued at approximately $3.7 billion. FirstMerit Corporation was a diversified financial services company headquartered in Akron, Ohio, with operations in Ohio, Michigan, Wisconsin, Illinois and Pennsylvania. Post acquisition, Huntington now operates across an eight-state Midwestern footprint. The acquisition resulted in a combined company with a larger market presence and more diversified loan portfolio, as well as a larger core deposit funding base and economies of scale associated with a larger financial institution. For further discussion, see Note 3 of the Notes to Consolidated Financial Statements.

2016 Financial Performance Review

In 2016, we reported net income of $712 million, a 3%increase from the prior year. Earnings per common share on a diluted basis for the year was $0.70, down 14% from the prior year. Reported net income was impacted by FirstMerit acquisition related expenses totaling $282 million pre-tax, or $0.20 per common share and a reduction to the litigation reserve totaling $42 million pre-tax, or $0.03 per common share.

Fully-taxable equivalent net interest income was $2.4 billion, up $0.4 billion, or 22%. This reflected the impact of 21% earning asset growth, 22% interest-bearing liability growth, and a 1 basis point increase in the NIM to 3.16%. The average earning asset growth included an $8.8 billion, or 18%, increase in average loans and leases and a $4.1 billion, or 30%, increase in average securities, both of which were impacted by the FirstMerit acquisition. The net interest margin expansion reflected a 9 basis point positive impact from the mix and yield on earning assets, a 3 basis point increase in the benefit from noninterest-bearing funds, partially offset by an 11 basis point increase in funding costs.

The provision for credit losses was $191 million, up $91 million, or 91%. The higher provision expense was due to several factors, including the migration of the acquired portfolio to the originated portfolio, and the corresponding reserve build, portfolio growth and transitioning the FirstMerit portfolio to Huntington’s reserving methodology. Net charge-offs represented an annualized 0.19% of average loans and leases, which remains below our long-term target of 35 to 55 basis points.

Noninterest income was $1.1 billion, up $111 million, or 11%. Service charges on deposit accounts increased $44 million, or 16%, reflecting the benefit of continued new customer acquisition. In addition, cards and payment processing income increased $26 million, or 18%, due to higher card related income and underlying customer growth. Also, mortgage banking income increased $16 million, or 15%, reflecting a 24% increase in mortgage origination volume. Finally, gain on sale of loans increased $14 million, or 43%, primarily reflecting an increase of $6 million in SBA loan sales gains and the $7 million gains on non-relationship C&I and CRE loan sales, both of which were related to the balance sheet optimization strategy completed in the 2016 fourth quarter.

Noninterest expense was $2.4 billion, up $433 million, or 22%. Reported noninterest expense was impacted by FirstMerit acquisition-related expenses totaling $282 million. Personnel costs increased $227 million, or 20%, primarily reflecting $76 million of acquisition-related expense and a 31% increase in the number of average full-time equivalent employees largely related to the in-store branch expansion and the addition of colleagues from FirstMerit. In addition, outside data processing and other services, professional services, equipment expense, and net occupancy expense all increased as a result of acquisition-related expenses. Also, other expense decreased$17 million, or 8%, primarily reflecting a $42 million reduction to litigation reserves, which was mostly offset by a $40 million contribution in the 2016 fourth quarter to achieve the philanthropic plans related to FirstMerit.

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The tangible common equity to tangible assets ratio was 7.16%, down 66 basis points. The CET1 risk-based capital ratio was 9.56%, down 23 basis points. The regulatory tier 1 risk-based capital ratio was 10.92%, up 39 basis points. All capital ratios were impacted by the $1.3 billion of goodwill created and the issuance of $2.8 billion 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 $600 million of Class D preferred equity and separately, the issuance of $100 million of Class C preferred equity in exchange for FirstMerit preferred equity in conjunction with the acquisition. The total risk-based capital ratio was impacted by the repurchase of $65 million of trust preferred securities. In addition, $5 million of trust preferred securities acquired in the FirstMerit acquisition were subsequently redeemed. There were no common shares repurchased during 2016.

Business Overview

General

Our general business objectives are: (1) grow net interest income and fee income, (2) deliver positive operating leverage, (3) increase primary relationships across all business segments, (4) continue to strengthen risk management, and (5) maintain capital and liquidity positions consistent with our risk appetite. Additionally, we are focused on the successful integration of FirstMerit in 2017.

Economy

Looking forward into 2017, we are optimistic that improved consumer confidence and jobs growth will translate into overall economic growth in the markets where we do business. Operationally, we expect to realize the full financial benefits of integration completion within the second half of the year, meeting our commitment for cost savings. We are driving revenue synergies and organic revenue growth, leveraging our expanded footprint and customer base. We will see minor benefits from the Federal Reserve’s December interest rate action, and any additional rate increases in 2017 would be additive to our bottom line.

Legislative and Regulatory

A comprehensive discussion of legislative and regulatory matters affecting us can be found in the Regulatory Matters section included in Item 1 of this Form 10-K.

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Table 2 - Selected Annual Income Statements (1)
(dollar amounts in thousands, except per share amounts)
	Year Ended December 31,
				Change from 2015							Change from 2014
	2016			Amount			Percent		2015		Amount			Percent		2014
Interest income	$	2,632,113		$	517,592		24	%	$	2,114,521	$	138,059		7	%	$	1,976,462
Interest expense	262,795			99,011			60		163,784		24,463			18		139,321
Net interest income	2,369,318			418,581			21		1,950,737		113,596			6		1,837,141
Provision for credit losses	190,802			90,848			91		99,954		18,965			23		80,989
Net interest income after provision for credit losses	2,178,516			327,733			18		1,850,783		94,631			5		1,756,152
Service charges on deposit accounts	324,299			43,950			16		280,349		6,608			2		273,741
Cards and payment processing income	169,064			26,349			18		142,715		37,314			35		105,401
Mortgage banking income	128,257			16,404			15		111,853		26,966			32		84,887
Trust services	108,274			2,441			2		105,833		(10,139		)	(9	)	115,972
Insurance income	64,523			(741		)	(1	)	65,264		(209		)	—		65,473
Brokerage income	61,834			1,629			3		60,205		(8,072		)	(12	)	68,277
Capital markets fees	59,527			5,911			11		53,616		9,885			23		43,731
Bank owned life insurance income	57,567			5,167			10		52,400		(4,648		)	(8	)	57,048
Gain on sale of loans	47,153			14,116			43		33,037		11,946			57		21,091
Securities gains (losses)	(84		)	(828		)	(111	)	744		(16,810		)	(96	)	17,554
Other income	129,317			(3,397		)	(3	)	132,714		6,710			5		126,004
Total noninterest income	1,149,731			111,001			11		1,038,730		59,551			6		979,179
Personnel costs	1,349,124			226,942			20		1,122,182		73,407			7		1,048,775
Outside data processing and other services	304,743			73,390			32		231,353		18,767			9		212,586
Equipment	164,839			39,882			32		124,957		5,294			4		119,663
Net occupancy	153,090			31,209			26		121,881		(6,195		)	(5	)	128,076
Professional services	105,266			54,975			109		50,291		(9,264		)	(16	)	59,555
Marketing	62,957			10,744			21		52,213		1,653			3		50,560
Deposit and other insurance expense	54,107			9,498			21		44,609		(4,435		)	(9	)	49,044
Amortization of intangibles	30,456			2,589			9		27,867		(11,410		)	(29	)	39,277
Other expense	183,903			(16,652		)	(8	)	200,555		25,745			15		174,810
Total noninterest expense	2,408,485			432,577			22		1,975,908		93,562			5		1,882,346
Income before income taxes	919,762			6,157			1		913,605		60,620			7		852,985
Provision for income taxes	207,941			(12,707		)	(6	)	220,648		55			—		220,593
Net income	711,821			18,864			3		692,957		60,565			10		632,392
Dividends on preferred shares	65,274			33,401			105		31,873		19			—		31,854
Net income applicable to common shares	$	646,547		$	(14,537	)	(2	)%	$	661,084	$	60,546		10	%	$	600,538
Average common shares—basic	904,438			101,026			13	%	803,412		(16,505		)	(2	)%	819,917
Average common shares—diluted	918,790			101,661			12		817,129		(15,952		)	(2	)	833,081
Per common share:
Net income—basic	$	0.72		$	(0.10	)	(12	)%	$	0.82	$	0.09		12	%	$	0.73
Net income—diluted	0.70			(0.11		)	(14	)	0.81		0.09			13		0.72
Cash dividends declared	0.29			0.04			16		0.25		0.04			19		0.21
Revenue—FTE
Net interest income	$	2,369,318		$	418,581		21	%	$	1,950,737	$	113,596		6	%	$	1,837,141
FTE adjustment	42,408			10,293			32		32,115		4,565			17		27,550
Net interest income(2)	2,411,726			428,874			22		1,982,852		118,161			6		1,864,691
Noninterest income	1,149,731			111,001			11		1,038,730		59,551			6		979,179
Total revenue(2)	$	3,561,457		$	539,875		18	%	$	3,021,582	$	177,712		6	%	$	2,843,870

(1) Comparisons for presented periods are impacted by a number of factors. Refer to “Significant Items” in the Discussion of Results of Operations.

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

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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 consolidated balance sheet and income statement 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.”

Significant Items

Earnings comparisons among the three years ended December 31, 2016, 2015, and 2014 were impacted by a number of 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, were as follows:

• During 2016, $282 million of noninterest expense and $1 million of noninterest income was recorded related to the acquisition of FirstMerit. This resulted in a negative impact of $0.20 per common share in 2016.

• During 2015, $9 million of noninterest expense was recorded related to the acquisition of Macquarie Equipment Finance, which was rebranded Huntington Technology Finance. Also during 2015, $4 million of noninterest expense and $3 million of noninterest income was recorded related to the sale of HAA, HASI, and Unified. This resulted in a negative impact of $0.01 per common share in 2015.

• During 2014, $16 million of net noninterest expense was recorded related to the acquisition of 24 Bank of America branches and Camco Financial. This resulted in a net negative impact of $0.01 per common share in 2014.

2. Litigation Reserve. Significant events relating to our litigation reserve, and the impacts of those events on our reported results, were as follows:

• During 2016, a $42 million reduction to litigation reserves was recorded as other noninterest expense. This resulted in a positive impact of $0.03 per common share in 2016.

• During 2015 and 2014, $38 million and $21 million of net additions to litigation reserves were recorded as other noninterest expense, respectively. This resulted in a negative impact of $0.03 and $0.02 per common share in 2015 and 2014, respectively.

3. Franchise Repositioning Related Expense. Significant events relating to franchise repositioning, and the impacts of those events on our reported results, were as follows:

• During 2015, $8 million of franchise repositioning related expense was recorded. This resulted in a negative impact of $0.01 per common share in 2015.

• During 2014, $28 million of franchise repositioning related expense was recorded. This resulted in a negative impact of $0.02 per common share in 2014.

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The following table reflects the earnings impact of the above-mentioned Significant Items for periods affected by this Results of Operations discussion:

Table 3 - Significant Items Influencing Earnings Performance Comparison
(dollar amounts in thousands, except per share amounts)
	2016						2015						2014
	Amount			EPS (1)			Amount			EPS (1)			Amount			EPS (1)
Net income	$	711,821					$	692,957					$	632,392
Earnings per share, after-tax				$	0.70					$	0.81					$	0.72
Significant items—favorable (unfavorable) impact:	Earnings			EPS			Earnings			EPS			Earnings			EPS
Mergers and acquisitions, net expenses	$	(282,086	)				$	(9,323	)				$	(15,818	)
Tax impact	94,709						3,263						5,436
Mergers and acquisitions, after-tax	$	(187,377	)	$	(0.20	)	$	(6,060	)	$	(0.01	)	$	(10,382	)	$	(0.01	)
Litigation reserves	$	41,587					$	(38,186	)				$	(20,909	)
Tax impact	(14,888		)				13,365						7,318
Litigation reserves, after-tax	$	26,699		$	0.03		$	(24,821	)	$	(0.03	)	$	(13,591	)	$	(0.02	)
Franchise repositioning related expense	$	—					$	(7,588	)				$	(27,976	)
Tax impact	—						2,656						9,792
Franchise repositioning related expense, after-tax	$	—		$	—		$	(4,932	)	$	(0.01	)	$	(18,184	)	$	(0.02	)

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

Net Interest Income / Average Balance Sheet

Our primary source of revenue is net interest income, which is the difference between interest income from earning assets (primarily loans, securities, and direct financing leases), and interest expense of funding sources (primarily interest-bearing deposits and borrowings). Earning asset balances and related funding sources, as well as changes in the levels of interest rates, impact net interest income. The difference between the average yield on earning assets and the average rate paid for interest-bearing liabilities is the net interest spread. Noninterest-bearing sources of funds, such as demand deposits and shareholders’ equity, also support earning assets. The impact of the noninterest-bearing sources of funds, often referred to as “free” funds, is captured in the net interest margin, which is calculated as net interest income divided by average earning assets. Both the net interest margin and net interest spread are presented on a fully-taxable equivalent basis, which means that tax-free interest income has been adjusted to a pretax equivalent income, assuming a 35% tax rate.

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The following table shows changes in fully-taxable equivalent interest income, interest expense, and net interest income due to volume and rate variances for major categories of earning assets and interest-bearing liabilities:

Table 4 - Change in Net Interest Income Due to Changes in Average Volume and Interest Rates (1)
(dollar amounts in millions)
	2016							2015
	Increase (Decrease) From Previous Year Due To							Increase (Decrease) From Previous Year Due To
Fully-taxable equivalent basis(2)	Volume		Yield/ Rate			Total		Volume			Yield/ Rate			Total
Loans and leases	$	332.3	$	87.0		$	419.3	$	117.6		$	(35.1	)	$	82.5
Investment securities	104.7		(7.0		)	97.7		45.8			3.2			49.0
Other earning assets	12.5		(1.7		)	10.8		10.4			0.7			11.1
Total interest income from earning assets	449.5		78.3			527.8		173.8			(31.2		)	142.6
Deposits	16.3		3.5			19.8		5.6			(9.9		)	(4.3		)
Short-term borrowings	0.2		3.3			3.5		(1.6		)	0.3			(1.3		)
Long-term debt	42.2		33.5			75.7		30.1			—			30.1
Total interest expense of interest-bearing liabilities	58.7		40.3			99.0		34.1			(9.6		)	24.5
Net interest income	$	390.8	$	38.0		$	428.8	$	139.7		$	(21.6	)	$	118.1

(1) The change in interest rates due to both rate and volume has been allocated between the factors in proportion to the relationship of the absolute dollar amounts of the change in each.

(2) Calculated assuming a 35% tax rate.

Table 5 - Consolidated Average Balance Sheet and Net Interest Margin Analysis (3)
(dollar amounts in millions)
	Average Balances
			Change from 2015						Change from 2014
Fully-taxable equivalent basis (1)	2016		Amount		Percent		2015		Amount			Percent		2014
Assets
Interest-bearing deposits in banks	$	100	$	10	11	%	$	90	$	5		6	%	$	85
Loans held for sale	1,054		400		61		654		331			102		323
Available-for-sale and other securities:
Taxable	9,278		1,279		16		7,999		1,214			18		6,785
Tax-exempt	2,716		641		31		2,075		646			45		1,429
Total available-for-sale and other securities	11,994		1,920		19		10,074		1,860			23		8,214
Trading account securities	67		21		46		46		—			—		46
Held-to-maturity securities—taxable	5,693		2,180		62		3,513		(99		)	(3	)	3,612
Total securities	17,754		4,121		30		13,633		1,761			15		11,872
Loans and leases: (2)
Commercial:
Commercial and industrial	23,684		3,950		20		19,734		1,392			8		18,342
Commercial real estate:
Construction	1,088		71		7		1,017		289			40		728
Commercial	4,919		709		17		4,210		(61		)	(1	)	4,271
Commercial real estate	6,007		780		15		5,227		228			5		4,999
Total commercial	29,691		4,730		19		24,961		1,620			7		23,341
Consumer:
Automobile loans and leases	10,540		1,780		20		8,760		1,090			14		7,670
Home equity	9,058		564		7		8,494		99			1		8,395

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Residential mortgage	6,730			780			13		5,950			327			6		5,623
RV and marine finance	693			693			—		—			—			—		—
Other consumer	742			261			54		481			85			21		396
Total consumer	27,763			4,078			17		23,685			1,601			7		22,084
Total loans and leases	57,454			8,808			18		48,646			3,221			7		45,425
Allowance for loan and lease losses	(614		)	(8		)	1		(606		)	32			(5	)	(638		)
Net loans and leases	56,840			8,800			18		48,040			3,253			7		44,787
Total earning assets	76,362			13,339			21		63,023			5,318			9		57,705
Cash and due from banks	1,220			(3		)	—		1,223			325			36		898
Intangible assets	1,359			656			93		703			125			22		578
All other assets	4,727			510			12		4,217			276			7		3,941
Total assets	$	83,054		$	14,494		21	%	$	68,560		$	6,076		10	%	$	62,484
Liabilities and Shareholders’ Equity
Deposits:
Demand deposits—noninterest-bearing	$	19,045		$	2,703		17	%	$	16,342		$	2,354		17	%	$	13,988
Demand deposits—interest-bearing	10,985			4,412			67		6,573			677			11		5,896
Total demand deposits	30,030			7,115			31		22,915			3,031			15		19,884
Money market deposits	19,069			(314		)	(2	)	19,383			1,466			8		17,917
Savings and other domestic deposits	7,981			2,761			53		5,220			189			4		5,031
Core certificates of deposit	2,300			(303		)	(12	)	2,603			(712		)	(21	)	3,315
Total core deposits	59,380			9,259			18		50,121			3,974			9		46,147
Other domestic time deposits of $250,000 or more	408			152			59		256			14			6		242
Brokered time deposits and negotiable CDs	3,499			746			27		2,753			614			29		2,139
Deposits in foreign offices	204			(298		)	(59	)	502			127			34		375
Total deposits	63,491			9,859			18		53,632			4,729			10		48,903
Short-term borrowings	1,530			184			14		1,346			(1,415		)	(51	)	2,761
Long-term debt	8,048			2,463			44		5,585			2,105			60		3,480
Total interest-bearing liabilities	54,024			9,803			22		44,221			3,065			7		41,156
All other liabilities	1,594			133			9		1,461			391			37		1,070
Shareholders’ equity	8,391			1,855			28		6,536			266			4		6,270
Total liabilities and shareholders’ equity	$	83,054		$	14,494		21	%	$	68,560		$	6,076		10	%	$	62,484

(3) Yield/rates and amounts include the effects of hedge and risk management activities associated with the respective asset and liability categories.

Table 6 - Consolidated Average Balance Sheet and Net Interest Margin Analysis (Continued) (3)
(dollar amounts in thousands)
	Interest Income / Expense						Average Rate (2)
Fully-taxable equivalent basis (1)	2016		2015		2014		2016		2015		2014
Assets
Interest-bearing deposits in banks	$	443	$	90	$	103	0.44	%	0.10	%	0.12	%
Loans held for sale	34,480		23,812		12,728		3.27		3.64		3.94
Securities:
Available-for-sale and other securities:
Taxable	221,782		202,104		171,080		2.39		2.53		2.52
Tax-exempt	90,972		64,637		44,562		3.35		3.11		3.12

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Total available-for-sale and other securities	312,754		266,741		215,642		2.61		2.65		2.63
Trading account securities	284		493		421		0.42		1.06		0.92
Held-to-maturity securities—taxable	138,312		86,614		88,724		2.43		2.47		2.46
Total securities	451,350		353,848		304,787		2.54		2.60		2.57
Loans and leases: (2)
Commercial:
Commercial and industrial	878,873		700,139		643,484		3.71		3.55		3.51
Commercial real estate:
Construction	40,467		36,956		31,414		3.72		3.63		4.31
Commercial	175,491		146,526		163,192		3.57		3.48		3.82
Commercial real estate	215,958		183,482		194,606		3.60		3.51		3.89
Total commercial	1,094,831		883,621		838,090		3.69		3.54		3.59
Consumer:
Automobile loans and leases	350,358		282,379		262,931		3.32		3.22		3.43
Home equity	381,002		340,342		343,281		4.21		4.01		4.09
Residential mortgage	244,077		220,678		213,268		3.63		3.71		3.79
RV and marine finance	39,243		—		—		5.67		—		—
Other consumer	78,737		41,866		28,824		10.62		8.71		7.30
Total consumer	1,093,417		885,265		848,304		3.94		3.74		3.84
Total loans and leases	2,188,248		1,768,886		1,686,394		3.81		3.64		3.71
Total earning assets	$	2,674,521	$	2,146,636	$	2,004,012	3.50	%	3.41	%	3.47	%
Liabilities and Shareholders’ Equity
Deposits:
Demand deposits—noninterest-bearing	$	—	$	—	$	—	—	%	—	%	—	%
Demand deposits—interest-bearing	11,278		4,278		2,272		0.10		0.07		0.04
Total demand deposits	11,278		4,278		2,272		0.04		0.02		0.01
Money market deposits	45,411		43,406		42,156		0.24		0.22		0.24
Savings and other domestic deposits	15,337		7,340		8,779		0.19		0.14		0.17
Core certificates of deposit	12,961		20,646		26,998		0.56		0.79		0.81
Total core deposits	84,987		75,670		80,205		0.21		0.22		0.25
Other domestic time deposits of $250,000 or more	1,624		1,078		1,036		0.40		0.42		0.43
Brokered time deposits and negotiable CDs	15,125		4,767		4,728		0.43		0.17		0.22
Deposits in foreign offices	268		659		483		0.13		0.13		0.13
Total deposits	102,004		82,174		86,452		0.23		0.22		0.25
Short-term borrowings	5,140		1,584		2,940		0.34		0.12		0.11
Long-term debt	155,651		80,026		49,929		1.93		1.43		1.43
Total interest-bearing liabilities	262,795		163,784		139,321		0.48		0.37		0.34
Net interest income	$	2,411,726	$	1,982,852	$	1,864,691
Net interest rate spread							3.02		3.04		3.13
Impact of noninterest-bearing funds on margin							0.14		0.11		0.10
Net interest margin							3.16	%	3.15	%	3.23	%

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

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

(3) Yield/rates and amounts include the effects of hedge and risk management activities associated with the respective asset and liability categories.

2016 vs. 2015

Fully-taxable equivalent net interest income for 2016 increased $429 million, or 22%, from 2015. This reflected the impact of 21% earning asset growth, a 1 basis point increase in the NIM to 3.16%, partially offset by 22% interest-bearing liability growth.

Average earning assets increased $13.3 billion, or 21%, from the prior year, driven by:

• $4.1 billion, or 30%, increase in average securities, primarily reflecting the FirstMerit acquisition, as well as the reinvestment of cash flows and additional investment in LCR Level 1 qualifying securities. The 2016 average balance also included $2.1 billion of direct purchase municipal instruments in our Commercial segment, up from $1.7 billion in the year-ago period.

• $4.0 billion, or 20%, increase in average C&I loans and leases was impacted by the FirstMerit acquisition. The increase in average C&I loans and leases also reflects organic growth in equipment finance leases, automobile dealer floorplan lending, and corporate banking.

• $1.8 billion, or 20%, increase in average automobile loans, which reflects continued strength in new and used automobile originations, while maintaining our underwriting consistency and discipline. This increase was also impacted by the FirstMerit acquisition and was partially offset by the $1.5 billion auto loan securitization during the 2016 fourth quarter.

Average noninterest-bearing demand deposits increased $2.7 billion, or 17%, while average total interest-bearing liabilities increased $9.8 billion, or 22%, primarily reflecting:

• $4.4 billion, or 67%, increase in average interest-bearing demand deposits.

• $2.8 billion, or 53%, increase in savings and other domestic deposits, reflecting continued banker focus across all segments on obtaining our customers' full deposit relationship.

• $2.4 billion, or 44% increase in average long-term debt, reflecting the issuance of $2.0 billion of senior debt during 2016, as well as $0.5 billion of subordinate debt assumed during the acquisition of FirstMerit.

The 1 basis point increase in NIM primary reflected:

• 9 basis point positive impact from the mix and yield on earning assets, a 3 basis point increase in the benefit from noninterest-bearing funds, partially offset by an 11 basis point increase in funding costs.

2015 vs. 2014

Fully-taxable equivalent net interest income for 2015 increased $118 million, or 6%, from 2014. This reflected the impact of 9% earning asset growth, partially offset by 7% interest-bearing liability growth and an 8 basis point decrease in the NIM to 3.15%.

Average earning assets increased $5.3 billion, or 9%, from the prior year, driven by:

• $1.8 billion, or 15%, increase in average securities, primarily reflecting additional investment in LCR Level 1 qualifying securities. The 2015 average balance also included $1.7 billion of direct purchase municipal instruments originated by our Commercial segment, up from $1.0 billion in the year-ago period.

• $1.4 billion, or 8%, increase in average C&I loans and leases, primarily reflecting the $0.9 billion increase in asset finance, including the $0.8 billion of equipment finance leases acquired in the Huntington Technology Finance transaction at the end of the 2015 first quarter.

• $1.1 billion, or 14%, increase in average Automobile loans, as originations remained strong.

• $0.3 billion, or 6%, increase in average Residential mortgage loans.

Average noninterest-bearing demand deposits increased $2.4 billion, or 17%, while average total interest-bearing liabilities increased $3.1 billion, or 7%, primarily reflecting:

• $1.5 billion, or 8%, increase in money market deposits, reflecting continued banker focus across all segments on obtaining our customers’ full deposit relationship.

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• $0.7 billion, or 11%, increase in average interest-bearing demand deposits. The increase reflected growth in both consumer and commercial accounts.

• $0.7 billion, or 11%, increase in average total debt, reflecting a $2.1 billion, or 60%, increase in average long-term debt partially offset by a $1.4 billion, or 51%, reduction in average short-term borrowings. The increase in average long-term debt reflected the issuance of $3.1 billion of bank-level senior debt during 2015, including $0.9 billion during the 2015 fourth quarter, as well as $0.5 billion of debt assumed in the Huntington Technology Finance acquisition at the end of the 2015 first quarter.

• $0.6 billion, or 29%, increase in brokered deposits and negotiated CDs, which were used to efficiently finance balance sheet growth while continuing to manage the overall cost of funds.

Partially offset by:

• $0.7 billion, or 21%, decrease in average core certificates of deposit due to the strategic focus on changing the funding sources to low- and no-cost demand deposits and money market deposits.

The primary items impacting the decrease in the NIM were:

• 6 basis point negative impact from the mix and yield on earning assets, primarily reflecting lower rates on loans and the impact of an increase in total securities balances.

• 3 basis point negative impact from the mix and yield of total interest-bearing liabilities.

Partially offset by:

• 1 basis point increase in the benefit to the margin of noninterest-bearing funds.

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 inherent in the loan and lease portfolio and the portfolio of unfunded loan commitments and letters-of-credit.

The provision for credit losses in 2016 was $191 million, up $91 million, or 91%, from 2015. The higher provision expense was due to several factors, including the migration of the acquired loan portfolio to the originated portfolio, which requires a reserve build, portfolio growth and transitioning the FirstMerit portfolio to our reserve methodology. NCOs represented 19 basis points of average loans and leases, consistent with 2015, and below our long-term target of 35 to 55 basis points.

The provision for credit losses in 2015 was $100 million, up $19 million, or 23%, from 2014, reflecting a $37 million, or 30%, decrease in NCOs. The provision for credit losses in 2015 was $12 million more than total NCOs.

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Noninterest Income

The following table reflects noninterest income for the past three years:

Table 7 - Noninterest Income
(dollar amounts in thousands)
	Year Ended December 31,
				Change from 2015							Change from 2014
	2016			Amount			Percent		2015		Amount			Percent		2014
Service charges on deposit accounts	$	324,299		$	43,950		16	%	$	280,349	$	6,608		2	%	$	273,741
Cards and payment processing income	169,064			26,349			18		142,715		37,314			35		105,401
Mortgage banking income	128,257			16,404			15		111,853		26,966			32		84,887
Trust services	108,274			2,441			2		105,833		(10,139		)	(9	)	115,972
Insurance income	64,523			(741		)	(1	)	65,264		(209		)	—		65,473
Brokerage income	61,834			1,629			3		60,205		(8,072		)	(12	)	68,277
Capital markets fees	59,527			5,911			11		53,616		9,885			23		43,731
Bank owned life insurance income	57,567			5,167			10		52,400		(4,648		)	(8	)	57,048
Gain on sale of loans	47,153			14,116			43		33,037		11,946			57		21,091
Securities gains (losses)	(84		)	(828		)	(111	)	744		(16,810		)	(96	)	17,554
Other income	129,317			(3,397		)	(3	)	132,714		6,710			5		126,004
Total noninterest income	$	1,149,731		$	111,001		11	%	$	1,038,730	$	59,551		6	%	$	979,179

2016 vs. 2015

Noninterest income increased $111 million, or 11%, from the prior year, primarily reflecting:

• $44 million, or 16%, increase in service charges on deposit accounts, reflecting the benefit of continued new customer acquisition.

• $26 million, or 18%, increase in cards and payment processing income, due to higher card related income and underlying customer growth.

• $16 million, or 15%, increase in mortgage banking income, reflecting a 24% increase in mortgage origination volume.

• $14 million, or 43%, increase in gain on sale of loans primarily reflecting an increase of $6 million in SBA loan sales gains. In addition, there was a $7 million gain on non-relationship C&I and CRE loan sales, which was related to the balance sheet optimization strategy completed in the 2016 fourth quarter.

2015 vs. 2014

Noninterest income increased $60 million, or 6%, from the prior year, primarily reflecting:

• $37 million, or 35%, increase in cards and payment processing income due to higher card related income and underlying customer growth.

• $27 million, or 32%, increase in mortgage banking income primarily driven by a $33 million, or 58%, increase in origination and secondary marketing revenue.

• $12 million, or 57%, increase in gain on sale of loans primarily reflecting an increase of $7 million in SBA loan sales gains and the $5 million automobile loan securitization gain during the 2015 second quarter.

• $10 million, or 23%, increase in capital market fees primarily related to customer foreign exchange and commodities derivatives products.

Partially offset by:

• $17 million, or 96% decrease in securities gains as we adjusted the mix of our securities portfolio to prepare for the LCR requirements during the 2014 first quarter.

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• $10 million, or 9%, decrease in trust services primarily related to our fiduciary trust businesses moving to a more open architecture platform and a decline in assets under management in proprietary mutual funds. During the 2015 fourth quarter, Huntington sold HAA, HASI, and Unified.

Noninterest Expense
(This section should be read in conjunction with Significant Items section.)
The following table reflects noninterest expense for the past three years:
Table 8 - Noninterest Expense
(dollar amounts in thousands)
	Year Ended December 31,
			Change from 2015							Change from 2014
	2016		Amount			Percent		2015		Amount			Percent		2014
Personnel costs	$	1,349,124	$	226,942		20	%	$	1,122,182	$	73,407		7	%	$	1,048,775
Outside data processing and other services	304,743		73,390			32		231,353		18,767			9		212,586
Equipment	164,839		39,882			32		124,957		5,294			4		119,663
Net occupancy	153,090		31,209			26		121,881		(6,195		)	(5	)	128,076
Professional services	105,266		54,975			109		50,291		(9,264		)	(16	)	59,555
Marketing	62,957		10,744			21		52,213		1,653			3		50,560
Deposit and other insurance expense	54,107		9,498			21		44,609		(4,435		)	(9	)	49,044
Amortization of intangibles	30,456		2,589			9		27,867		(11,410		)	(29	)	39,277
Other expense	183,903		(16,652		)	(8	)	200,555		25,745			15		174,810
Total noninterest expense	$	2,408,485	$	432,577		22	%	$	1,975,908	$	93,562		5	%	$	1,882,346
Number of employees (average full-time equivalent)	15,993		3,750			31	%	12,243		370			3	%	11,873

Impact of Significant Items:
	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Personnel costs	$	76,020	$	5,457	$	19,850
Outside data processing and other services	46,467		4,365		5,507
Equipment	24,742		110		2,248
Net occupancy	14,772		4,587		11,153
Professional services	57,817		5,087		2,228
Marketing	5,520		28		1,357
Other expense	14,010		38,733		23,140
Total impact of significant items on noninterest expense	$	239,348	$	58,367	$	65,483

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Adjusted Noninterest Expense (See Non-GAAP Financial Measures in the Additional Disclosures section):
	Year Ended December 31,						Change from 2015				Change from 2014
(dollar amounts in thousands)	2016		2015		2014		Amount		Percent		Amount			Percent
Personnel costs	1,273,104		1,116,725		1,028,925		156,379		14		87,800			9
Outside data processing and other services	258,276		226,988		207,079		31,288		14		19,909			10
Equipment	140,097		124,847		117,415		15,250		12		7,432			6
Net occupancy	138,318		117,294		116,923		21,024		18		371			—
Professional services	47,449		45,204		57,327		2,245		5		(12,123		)	(21	)
Marketing	57,437		52,185		49,203		5,252		10		2,982			6
Deposit and other insurance expense	54,107		44,609		49,044		9,498		21		(4,435		)	(9	)
Amortization of intangibles	30,456		27,867		39,277		2,589		9		(11,410		)	(29	)
Other expense	169,893		161,822		151,670		8,071		5		10,152			7
Total adjusted noninterest expense (Non-GAAP)	$	2,169,137	$	1,917,541	$	1,816,863	$	251,596	13	%	$	100,678		6	%

2016 vs. 2015

Noninterest expense increased $433 million, or 22%, from 2015:

• $227 million, or 20%, increase in personnel costs, primarily reflecting a 31% increase in the number of average full-time equivalent employees largely related to the in-store branch expansion and the addition of colleagues from FirstMerit.

• $73 million, or 32%, increase in outside data processing and other services, primarily reflecting $46 million of acquisition-related expense and ongoing technology investments.

• $55 million, or 109%, increase in professional services, primarily reflecting $58 million of acquisition-related expense.

• $40 million, or 32%, increase in equipment expense, primarily reflecting $25 million of acquisition-related expense.

• $31 million, or 26%, increase in net occupancy expense, primarily reflecting $15 million of acquisition-related expense.

Partially offset by:

• $17 million, or 8%, decrease in other expense, primarily reflecting a $42 million reduction to litigation reserves which was mostly offset by a $40 million contribution in the 2016 fourth quarter to achieve the philanthropic plans related to FirstMerit.

2015 vs. 2014

Noninterest expense increased $94 million, or 5%, from 2014:

• $73 million, or 7%, increase in personnel costs. Excluding the impact of significant items, personnel costs increased $88 million, or 9%, reflecting a $79 million increase in salaries related to the 2015 second quarter implementation of annual merit increases, the addition of Huntington Technology Finance, and a 3% increase in the number of average full-time equivalent employees, largely related to the build-out of the in-store strategy.

• $26 million, or 15%, increase in other noninterest expense. Excluding the impact of significant items, other noninterest expense increased $10 million, or 7%, due to an increase in operating lease expense related to Huntington Technology Finance.

• $19 million, or 9%, increase in outside data processing and other services. Excluding the impact of significant items, outside data processing and other services increased $20 million, or 10%, primarily reflecting higher debit and credit card processing costs and increased other technology investment expense, as we continue to invest in technology supporting our products, services, and our Continuous Improvement initiatives.

Partially offset by:

• $11 million, or 29%, decrease in amortization of intangibles reflecting the full amortization of the core deposit intangible at the end of the 2015 second quarter from the Sky Financial acquisition.

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• $9 million, or 16%, decrease in professional services. Excluding the impact of significant items, professional services decreased $12 million, or 21%, reflecting a decrease in outside consultant expenses related to strategic planning.

$6 million, or 5%, decrease in net occupancy. Excluding the impact of significant items, net occupancy remained relatively unchanged.

Provision for Income Taxes

(This section should be read in conjunction with Note 17 of the Notes to Consolidated Financial Statements.)

2016 versus 2015

The provision for income taxes was $208 million for 2016 compared with a provision for income taxes of $221 million in 2015. Both years included the benefits from tax-exempt income, tax-advantaged investments, general business credits, investments in qualified affordable housing projects, and capital losses. As of December 31, 2016 and 2015 there was no valuation allowance on federal deferred taxes. In 2015, a $69 million reduction in the provision for federal income taxes was recorded for the portion of federal capital loss carryforward deferred tax asset that are more likely than not to be realized. In 2016 and 2015 there was essentially no change recorded in the provision for state income taxes, net of federal, for the portion of state deferred tax assets and state net operating loss carryforwards that are more likely than not to be realized. At December 31, 2016, we had a net federal deferred tax asset of $76 million and a net state deferred tax asset of $41 million.

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.

2015 versus 2014

The provision for income taxes was $221 million for 2015 compared with a provision for income taxes of $221 million in 2014. Both years included the benefits from tax-exempt income, tax-advantaged investments, general business credits, investments in qualified affordable housing projects, and capital losses. In 2015, a $69 million reduction in the provision for federal income taxes was recorded for the portion of federal deferred tax assets related to capital loss carryforwards that are more likely than not to be realized compared to a $27 million reduction in 2014. In 2015, there was essentially no change recorded in the provision for state income taxes, net of federal taxes, for the portion of state deferred tax assets and state net operating loss carryforwards that are more likely than not to be realized, compared to a $7 million reduction, net of federal taxes, in the 2014.

RISK MANAGEMENT AND CAPITAL

A comprehensive discussion of risk management and capital matters affecting us can be found in the Risk Governance section included in Item 1A and the Regulatory Matters section of Item 1 of this Form 10-K.

Some of the more significant processes used to manage and control credit, market, liquidity, operational, and compliance risks are described in the following sections.

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 5 and Note 6 of the Notes to 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, based on our underwriting practices we believe this exposure is minimal. (see Note 1 of the Notes to Consolidated Financial Statements)

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.

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The maximum level of credit exposure to individual credit borrowers is limited by policy guidelines based on the perceived risk of each borrower or related group of borrowers. All authority to grant commitments is delegated through the independent credit administration function and is closely monitored and regularly updated. Concentration risk is managed through limits on loan type, geography, industry, and loan quality factors. We focus predominantly on extending credit to retail and commercial customers with existing or expandable relationships within our primary banking markets, although we will consider lending opportunities outside our primary markets if we believe the associated risks are acceptable and aligned with strategic initiatives. Although we offer a broad set of products, we continue to develop new lending products and opportunities. Each of these new products and opportunities goes through a rigorous development and approval process prior to implementation to ensure our overall objective of maintaining an aggregate moderate-to-low risk portfolio profile.

The checks and balances in the credit process and the separation of the credit administration and risk management functions are designed to appropriately assess and sanction the level of credit risk being accepted, facilitate the early recognition of credit problems when they occur, and provide for effective problem asset management and resolution. For example, we do not extend additional credit to delinquent borrowers except in certain circumstances that substantially improve our overall repayment or collateral coverage position.

Loan and Lease Credit Exposure Mix

At December 31, 2016, our loans and leases totaled $67.0 billion, representing a $16.6 billion, or 33%, increase compared to $50.3 billion at December 31, 2015.

Total commercial loans and leases were $35.4 billion at December 31, 2016, and represented 53% of our total loan and lease credit exposure. Our commercial loan portfolio is diversified by product type, customer size, and geography within our footprint, and is comprised of the following (see Commercial Credit discussion):

C&I – C&I loans and leases are made to commercial customers for use in normal business operations to finance working capital needs, equipment purchases, or other projects. The majority of these borrowers are customers doing business within our geographic regions. C&I loans and leases are generally underwritten individually and secured with the assets of the company and/or the personal guarantee of the business owners. The financing of owner occupied facilities is considered a C&I loan even though there is improved real estate as collateral. This treatment is a result of the credit decision process, which focuses on cash flow from operations of the business to repay the debt. The operation, sale, rental, or refinancing of the real estate is not considered the primary repayment source for these types of loans. As we have expanded our C&I portfolio, we have developed a series of “vertical specialties” to ensure that new products or lending types are embedded within a structured, centralized Commercial Lending area with designated, experienced credit officers. These specialties are comprised of either targeted industries (for example, Healthcare, Food & Agribusiness, Energy, etc.) and/or lending disciplines (Equipment Finance, ABL, etc.), all of which requires a high degree of expertise and oversight to effectively mitigate and monitor risk. As such, we have dedicated colleagues and teams focused on bringing value added expertise to these specialty clients.

CRE – CRE loans consist of loans to developers and REITs supporting income-producing or for-sale commercial real estate properties. We mitigate our risk on these loans by requiring collateral values that exceed the loan amount and underwriting the loan with projected cash flow in excess of the debt service requirement. These loans are made to finance properties such as apartment buildings, office and industrial buildings, and retail shopping centers, and are repaid through cash flows related to the operation, sale, or refinance of the property. For loans secured by real estate, appropriate appraisals are obtained at origination and updated on an as needed basis in compliance with regulatory requirements.

Construction CRE – Construction CRE loans are loans to developers, companies, or individuals used for the construction of a commercial or residential property for which repayment will be generated by the sale or permanent financing of the property. Our construction CRE portfolio primarily consists of retail, multi family, office, and warehouse project types. Generally, these loans are for construction projects that have been presold or preleased, or have secured permanent financing, as well as loans to real estate companies with significant equity invested in each project. These loans are underwritten and managed by a specialized real estate lending group that actively monitors the construction phase and manages the loan disbursements according to the predetermined construction schedule.

Total consumer loans and leases were $31.6 billion at December 31, 2016, and represented 47% of our total loan and lease credit exposure. The consumer portfolio is comprised primarily of automobile loans, home equity loans and lines-of-credit, and residential mortgages (see Consumer Credit discussion).

Automobile – Automobile loans are comprised primarily of loans made through automotive dealerships and include exposure in selected states outside of our primary banking markets. The exposure outside of our primary banking markets represents 16% of the total exposure, with no individual state representing more than 5%. Applications are underwritten using an automated underwriting system that applies consistent policies and processes across the portfolio.

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Home equity – Home equity lending includes both home equity loans and lines-of-credit. This type of lending, which is secured by a first-lien or junior-lien on the borrower’s residence, allows customers to borrow against the equity in their home or refinance existing mortgage debt. Products include closed-end loans which are generally fixed-rate with principal and interest payments, and variable-rate, interest-only lines-of-credit which do not require payment of principal during the 10-year revolving period. The home equity line of credit may convert to a 20-year amortizing structure at the end of the revolving period. Applications are underwritten centrally in conjunction with an automated underwriting system. The home equity underwriting criteria is based on minimum credit scores, debt-to-income ratios, and LTV ratios, with current collateral valuations. The underwriting for the floating rate lines of credit also incorporates a stress analysis for a rising interest rate.

Residential mortgage – Residential mortgage loans represent loans to consumers for the purchase or refinance of a residence. These loans are generally financed over a 15-year to 30-year term, and in most cases, are extended to borrowers to finance their primary residence. Applications are underwritten centrally using consistent credit policies and processes. All residential mortgage loan decisions utilize a full appraisal for collateral valuation. Huntington has not originated or acquired residential mortgages that allow negative amortization or allow the borrower multiple payment options.

RV and marine finance – RV and marine finance loans are loans provided to consumers for the purpose of financing recreational vehicles and boats. Loans are originated on an indirect basis through a series of dealerships across 26 states. The loans are underwritten centrally using an application and decisioning system similar to automobile loans. The current portfolio includes 60% of the balances within our core footprint states.

Other consumer – Other consumer loans primarily consists of consumer loans not secured by real estate, including personal unsecured loans, overdraft balances, and credit cards.

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

Table 9 - Loan and Lease Portfolio Composition
(dollar amounts in millions)
	At December 31,
	2016				2015				2014				2013				2012
Ending Balances by Type:
Originated loans
Commercial:
Commercial and industrial	$	21,631	41	%	$	20,560	41	%	$	19,033	40	%	$	17,594	41	%	$	16,971	42	%
Commercial real estate:
Construction	979		2		1,031		2		875		2		557		1		648		2
Commercial	4,740		9		4,237		8		4,322		9		4,293		10		4,751		12
Commercial real estate	5,719		11		5,268		10		5,197		11		4,850		11		5,399		14
Total commercial	27,350		52		25,828		51		24,230		51		22,444		52		22,370		56
Consumer:
Automobile	9,619		18		9,481		19		8,690		18		6,639		15		4,634		11
Home equity	8,665		16		8,471		17		8,491		18		8,336		19		8,335		20
Residential mortgage	6,717		13		5,998		12		5,831		12		5,321		12		4,970		12
RV and marine finance	166		—		—		—		—		—		—		—		—		—
Other consumer	730		1		563		1		414		1		380		2		419		1
Total consumer	25,897		48		24,513		49		23,426		49		20,676		48		18,358		44
Total originated loans and leases	$	53,247	100	%	$	50,341	100	%	$	47,656	100	%	$	43,120	100	%	$	40,728	100	%
Acquired loans (1)
Commercial:
Commercial and industrial	$	6,428	47	%
Commercial real estate:
Construction	467		3
Commercial	1,115		8
Commercial real estate	1,582		11
Total commercial	8,010		58
Consumer:
Automobile	1,350		10
Home equity	1,441		11

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Residential mortgage	1,008		7
RV and marine finance	1,680		12
Other consumer	226		2
Total consumer	5,705		42
Total acquired loans and leases	$	13,715	100	%
Total loans
Commercial:
Commercial and industrial	$	28,059	42	%	$	20,560	41	%	$	19,033	40	%	$	17,594	41	%	$	16,971	42	%
Commercial real estate:
Construction	1,446		2		1,031		2		875		2		557		1		648		2
Commercial	5,855		9		4,237		8		4,322		9		4,293		10		4,751		12
Commercial real estate	7,301		11		5,268		10		5,197		11		4,850		11		5,399		14
Total commercial	35,360		53		25,828		51		24,230		51		22,444		52		22,370		56
Consumer:
Automobile	10,969		16		9,481		19		8,690		18		6,639		15		4,634		11
Home equity	10,106		15		8,471		17		8,491		18		8,336		19		8,335		20
Residential mortgage	7,725		12		5,998		12		5,831		12		5,321		12		4,970		12
RV and marine finance	1,846		3		—		—		—		—		—		—		—		—
Other consumer	956		1		563		1		414		1		380		2		419		1
Total consumer	31,602		47		24,513		49		23,426		49		20,676		48		18,358		44
Total loans and leases	$	66,962	100	%	$	50,341	100	%	$	47,656	100	%	$	43,120	100	%	$	40,728	100	%

(1) Represents loans from FirstMerit acquisition.

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 and are 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. The acquired loan portfolio will show a continuous decline as a result of payments, payoffs, charge-offs or other disposition, unless Huntington acquires additional loans in the future.

Our loan portfolio is composed of consumer and commercial credits. At the corporate level, we manage the 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 limits as a percentage of capital. C&I lending by NAICS categories, specific limits for CRE primary 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. Currently there are no identified concentrations that exceed the established limit, including the impact of the FirstMerit acquisition. 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.

The table below provides our total loan and lease portfolio segregated by the type of collateral securing the loan or lease. The changes in the collateral composition from December 31, 2015 are consistent with the portfolio growth metrics.

The increase in the unsecured exposure is centered in high quality commercial credit customers.

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Table 10 - Loan and Lease Portfolio by Collateral Type
(dollar amounts in millions)
	At December 31,
	2016				2015				2014				2013				2012
Secured loans:
Real estate—commercial	$	11,729	18	%	$	8,296	16	%	$	8,631	18	%	$	8,622	20	%	$	9,128	22	%
Real estate—consumer	17,831		27		14,469		29		14,322		30		13,657		32		13,305		33
Vehicles, RV and marine	15,934		24		11,880		24		10,932		23		8,989		21		6,659		16
Receivables/Inventory	6,277		9		5,961		12		5,968		13		5,534		13		5,178		13
Machinery/Equipment	9,465		14		5,171		10		3,863		8		2,738		6		2,749		7
Securities/Deposits	1,305		2		974		2		964		2		786		2		826		2
Other	1,154		1		987		2		919		2		1,016		2		1,090		3
Total secured loans and leases	63,695		95		47,738		95		45,599		96		41,342		96		38,935		96
Unsecured loans and leases	3,267		5		2,603		5		2,057		4		1,778		4		1,793		4
Total loans and leases	$	66,962	100	%	$	50,341	100	%	$	47,656	100	%	$	43,120	100	%	$	40,728	100	%

Commercial Credit

The primary factors considered in commercial credit approvals are the financial strength of the borrower, assessment of the borrower’s management capabilities, cash flows from operations, industry sector trends, type and sufficiency of collateral, type of exposure, transaction structure, and the general economic outlook. While these are the primary factors considered, there are a number of other factors that may be considered in the decision process. We utilize a centralized preview and senior loan approval committee, led by our chief credit officer. The risk rating (see next paragraph), size, and complexity of the credit determines the threshold for approval of the senior loan committee with a minimum credit exposure of $10.0 million. For loans not requiring senior loan committee approval, with the exception of small business loans, credit officers who understand each local region and are experienced in the industries and loan structures of the requested credit exposure are involved in all loan decisions and have the primary credit authority. For small business loans, we utilize a centralized loan approval process for standard products and structures. In this centralized decision environment, certain individuals who understand each local region may make credit-extension decisions to preserve our commitment to the communities in which we operate. In addition to disciplined and consistent judgmental factors, a sophisticated credit scoring process is used as a primary evaluation tool in the determination of approving a loan within the centralized loan approval process.

In commercial lending, on-going credit management is dependent on the type and nature of the loan. We monitor all significant exposures on an on-going basis. All commercial credit extensions are assigned internal risk ratings reflecting the borrower’s PD and LGD. This two-dimensional rating methodology provides granularity in the portfolio management process. The PD is rated and applied at the borrower level. The LGD is rated and applied based on the specific type of credit extension and the quality and lien position associated with the underlying collateral. The internal risk ratings are assessed at origination and updated at each periodic monitoring event. There is also extensive macro portfolio management analysis on an on-going basis. We continually review and adjust our risk-rating criteria based on actual experience, which provides us with the current risk level in the portfolio and is the basis for determining an appropriate allowance for credit losses (ACL) amount for the commercial portfolio. A centralized portfolio management team monitors and reports on the performance of the entire commercial portfolio, including small business loans, to provide consistent oversight.

In addition to the initial credit analysis conducted during the approval process, our Credit Review group performs testing to provide an independent review and assessment of the quality and risk of new loan originations. This group is part of our Risk Management area and conducts portfolio reviews on a risk-based cycle to evaluate individual loans, validate risk ratings, and test the consistency of credit processes.

Our standardized loan grading system considers many components that directly correlate to loan quality and likelihood of repayment, one of which is guarantor support. On an annual basis, or more frequently if warranted, we consider, among other things, the guarantor’s reputation and creditworthiness, along with various key financial metrics such as liquidity and net worth, assuming such information is available. Our assessment of the guarantor’s credit strength, or lack thereof, is reflected in our risk ratings for such loans, which is directly tied to, and an integral component of, our ACL methodology. When a loan goes to impaired status, viable guarantor support is considered in the determination of a credit loss.

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If our assessment of the guarantor’s credit strength yields an inherent capacity to perform, we will seek repayment from the guarantor as part of the collection process and have done so successfully.

Substantially all loans categorized as Classified (see Note 4 of Notes to Consolidated Financial Statements) are managed by SAD. SAD is a specialized group of credit professionals that handle the day-to-day management of workouts, commercial recoveries, and problem loan sales. Its responsibilities include developing and implementing action plans, assessing risk ratings, and determining the appropriateness of the allowance, the accrual status, and the ultimate collectability of the Classified loan portfolio.

C&I PORTFOLIO

We manage the risks inherent in the C&I portfolio through origination policies, a defined loan concentration policy with established limits, on-going loan level reviews and portfolio level reviews, recourse requirements, and continuous portfolio risk management activities. Our origination policies for the C&I portfolio include loan product-type specific policies such as LTV and debt service coverage ratios, as applicable. During 2016, the most volatile segment of the C&I portfolio was loans to borrowers supporting oil and gas exploration and production, and currently represents less than 1% of the total loan portfolio. While the energy industry remains a focus, the performance of the energy related portfolio has stabilized over the past three quarters.

The C&I portfolio continues to have solid origination activity as evidenced by its growth over the past 12 months and we maintain a focus on high quality originations. The loans added as a result of the FirstMerit acquisition have a very similar risk profile and composition to the legacy Huntington portfolio. The only material new geographic location is the Chicago market. Problem loans had trended downward over the last several years, reflecting a combination of proactive risk identification and effective workout strategies implemented by the SAD. However, in the first quarter of 2016 C&I problem loans began to increase, primarily as a result of oil and gas exploration and production customers and the increase in overall C&I loan portfolio size. We have seen some improvement in the Energy portfolio risk profile since the 2016 first quarter. We continue to maintain a proactive approach to identifying borrowers that may be facing financial difficulty in order to maximize the potential solutions. Subsequent to the origination of the loan, the Credit Review group provides an independent review and assessment of the quality of the underwriting and risk of new loan originations.

CRE PORTFOLIO

We manage the risks inherent in this portfolio specific to CRE lending, focusing on the quality of the developer and the specifics associated with each project. Generally, we: (1) limit our loans to 80% of the appraised value of the commercial real estate at origination, (2) require net operating cash flows to be 125% of required interest and principal payments, and (3) if the commercial real estate is non-owner occupied, require that at least 50% of the space of the project be preleased. We actively monitor both geographic and project-type concentrations and performance metrics of all CRE loan types, with a focus on loans identified as higher risk based on the risk rating methodology. Both macro-level and loan-level stress-test scenarios based on existing and forecast market conditions are part of the on-going portfolio management process for the CRE portfolio.

Dedicated real estate professionals originate and manage the portfolio. The portfolio is diversified by project type and loan size, and this diversification represents a significant portion of the credit risk management strategies employed for this portfolio. Subsequent to the origination of the loan, the Credit Review group provides an independent review and assessment of the quality of the underwriting and risk of new loan originations.

Appraisal values are obtained in conjunction with all originations and renewals, and on an as needed basis, in compliance with regulatory requirements and to ensure appropriate decisions regarding the on-going management of the portfolio reflect the changing market conditions. Appraisals are obtained from approved vendors and are reviewed by an internal appraisal review group comprised of certified appraisers to ensure the quality of the valuation used in the underwriting process. We continue to perform on-going portfolio level reviews within the CRE portfolio. These reviews generate action plans based on occupancy levels or sales volume associated with the projects being reviewed. This highly individualized process requires working closely with all of our borrowers, as well as an in-depth knowledge of CRE project lending and the market environment.

Consumer Credit

Consumer credit approvals are based on, among other factors, the financial strength and payment history of the borrower, type of exposure, and transaction structure. Consumer credit decisions are generally made in a centralized environment utilizing decision models. Importantly, certain individuals who understand each local region have the authority to make credit extension decisions to preserve our focus on the local communities in which we operate. Each credit extension is assigned a specific PD and LGD. The PD is generally based on the borrower’s most recent credit bureau score (FICO), which we update quarterly, providing an ongoing view of the borrowers PD. The LGD is related to the type of collateral associated with the credit extension, which typically does not change over the course of the loan term. This allows Huntington to maintain a current view of the customer for credit risk management and ACL purposes.

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In consumer lending, credit risk is managed from a segment (i.e., loan type, collateral position, geography, etc.) and vintage performance analysis. All portfolio segments are continuously monitored for changes in delinquency trends and other asset quality indicators. We make extensive use of portfolio assessment models to continuously monitor the quality of the portfolio, which may result in changes to future origination strategies. The ongoing analysis and review process results in a determination of an appropriate ALLL amount for our consumer loan portfolio. The independent risk management group has a consumer process review component to ensure the effectiveness and efficiency of the consumer credit processes.

Collection actions by our customer assistance team are initiated as needed through a centrally managed collection and recovery function. We employ a series of collection methodologies designed to maintain a high level of effectiveness, while maximizing efficiency. In addition to the consumer loan portfolio, the customer assistance team is responsible for collection activity on all sold and securitized consumer loans and leases. Collection practices include a single contact point for the majority of the residential real estate secured portfolios.

AUTOMOBILE PORTFOLIO

Our strategy in the automobile portfolio continues to focus on high quality borrowers as measured by both FICO and internal custom scores, combined with appropriate LTVs, terms, and profitability. Our strategy and operational capabilities allow us to appropriately manage the origination quality across the entire portfolio, including our newer markets. Although increased origination volume and entering new markets can be associated with increased risk levels, we believe our disciplined strategy and operational processes significantly mitigate these risks.

We have continued to consistently execute our value proposition and take advantage of available market opportunities. Importantly, we have maintained our high credit quality standards while expanding the portfolio.

RESIDENTIAL REAL ESTATE SECURED PORTFOLIOS

The properties securing our residential mortgage and home equity portfolios are primarily located within our geographic footprint. Huntington continues to support our local markets with consistent underwriting across all residential secured products. The residential-secured portfolio originations continue to be of high quality, with the majority of the negative credit impact coming from loans originated in 2006 and earlier. Our portfolio management strategies associated with our Home Savers group allow us to focus on effectively helping our customers with appropriate solutions for their specific circumstances.

Table 11 - Selected Home Equity and Residential Mortgage Portfolio Data
(dollar amounts in millions)
	Home Equity							Residential Mortgage
	December 31,
		2016			2015			2016			2015
Ending balance		$	10,106		$	8,471		$	7,725		$	5,998
Portfolio weighted-average LTV ratio (1)		75		%	75		%	75		%	75		%
Portfolio weighted-average FICO score (2)		760			760			748			752
	Home Equity							Residential Mortgage (3)
	Twelve months ended December 31,
		2016			2015			2016			2015
Originations		$	2,717		$	2,606		$	1,878		$	1,409
Origination weighted-average LTV ratio (1)		78		%	77		%	84		%	83		%
Origination weighted-average FICO score (2)		775			774			751			754

(1) The LTV ratios for home equity loans and home equity lines-of-credit are cumulative and reflect the balance of any senior loans. LTV ratios reflect collateral values at the time of loan origination.

(2) Portfolio weighted average FICO scores reflect currently updated customer credit scores whereas origination weighted-average FICO scores reflect the customer credit scores at the time of loan origination.

(3) Represents only owned-portfolio originations.

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Home Equity Portfolio

Within the home equity portfolio, the standard product is a 10-year interest-only draw period with a 20-year fully amortizing term at the end of the draw period. Prior to 2006, the standard product was a 10-year draw period with a balloon payment. In either case, after the 10-year draw period, the borrower must reapply, subject to full underwriting guidelines, to continue with the interest only revolving structure or begin repaying the debt in a term structure. The principal and interest payment associated with the term structure will be higher than the interest-only payment, resulting in end of draw period risk. Our HELOC risk can be segregated into two distinct segments: (1) home equity lines-of-credit underwritten with a balloon payment at maturity acquired from FirstMerit and (2) home equity lines-of-credit with an automatic conversion to a 20-year amortizing loan. We manage this risk based on both the actual maturity date of the line-of-credit structure and at the end of the 10-year draw period. This risk is embedded in the portfolio which we address with proactive contact strategies beginning one year prior to either maturity or the end of draw period. In certain circumstances, our Home Saver group is able to provide payment and structure relief to borrowers experiencing significant financial hardship associated with the payment adjustment.

The table below summarizes our home equity line-of-credit portfolio by end of draw period described above:

Table 12 - Draw Schedule of Home Equity Line-of-Credit Portfolio
(dollar amounts in millions)
	December 31, 2016
	Amortizing		1 year or less		1 to 2 years		2 to 3 years		3 to 4 years		More than 4 years		Total
Current Balance
First Lien	$	94	$	98	$	255	$	134	$	168	$	3,486	$	4,235
Second Lien	380		220		256		115		127		2,403		3,501
Total Current Balance	$	474	$	318	$	511	$	249	$	295	$	5,889	$	7,736

Residential Mortgages Portfolio

Huntington underwrites all applications centrally, with a focus on higher quality borrowers. We do not originate residential mortgages that allow negative amortization or allow the borrower multiple payment options and have incorporated regulatory requirements and guidance into our underwriting process. Residential mortgages are originated based on a completed full appraisal during the credit underwriting process. We update values in compliance with applicable regulations to facilitate our portfolio management, as well as our workout and loss mitigation functions.

We are subject to repurchase risk associated with residential mortgage loans sold in the secondary market. An appropriate level of reserve for representations and warranties related to residential mortgage loans sold has been established to address this repurchase risk inherent in the portfolio.

RV AND MARINE FINANCE PORTFOLIO

Our strategy in the RV and Marine portfolio focuses on high quality borrowers, combined with appropriate LTVs, terms, and profitability. Although entering new markets can be associated with increased risk levels, we believe our disciplined strategy and operational processes significantly mitigate these risks.

Credit Quality

(This section should be read in conjunction with Note 4 of the Notes to 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 2016, including the FirstMerit acquisition, reflected continued overall positive results. Total NCOs were $109 million or 0.19% of average total loans and leases. The ACL to total loans and leases ratio decreased by 23 basis points to 1.10%, due to the impact of the FirstMerit acquisition as acquired loans are recorded at fair value with no associated ALLL on the date of acquisition.

NPAs and NALs

NPAs consist of (1) NALs, which represent loans and leases no longer accruing interest, (2) OREO properties, and (3) other NPAs. Any loan in our portfolio may be placed on nonaccrual status prior to the policies described below when collection of principal

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or interest is in doubt. Also, when a borrower with discharged non-reaffirmed debt in a Chapter 7 bankruptcy is identified and the loan is determined to be collateral dependent, the loan is placed on nonaccrual status.

C&I and CRE loans (except for purchased credit impaired loans) are placed on nonaccrual status at 90-days past due, or earlier if repayment of principal and interest is in doubt. Of the $255 million of CRE and C&I-related NALs at December 31, 2016, $173 million, or 68%, 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.

When loans are placed on nonaccrual, accrued interest income is reversed with current year accruals charged to interest income and prior year amounts generally charged-off as a credit loss. When, in our judgment, the borrower’s ability to make required interest and principal payments has resumed and collectability is no longer in doubt, the loan or lease could be returned to accrual status.

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

Table 13 - Nonaccrual Loans and Leases and Nonperforming Assets
(dollar amounts in thousands)
	December 31,
	2016		2015		2014		2013		2012
Nonaccrual loans and leases (NALs): (1)
Originated NALs
Commercial and industrial	$	225,162	$	175,195	$	71,974	$	56,615	$	90,705
Commercial real estate	19,565		28,984		48,523		73,417		127,128
Automobile	4,696		6,564		4,623		6,303		7,823
Residential mortgage	83,159		94,560		96,564		119,532		122,452
RV and marine	—		—		—		—		—
Home equity	66,033		66,278		78,515		66,169		59,519
Other consumer	—		—		45		20		6
Total nonaccrual loans and leases	398,615		371,581		300,244		322,056		407,633
Other real estate, net:
Residential	23,326		24,194		29,291		23,447		21,378
Commercial	3,404		3,148		5,748		4,217		6,719
Total other real estate, net	26,730		27,342		35,039		27,664		28,097
Other NPAs(2)	6,968		—		2,440		2,440		10,045
Total nonperforming assets (4)	$	432,313	$	398,923	$	337,723	$	352,160	$	445,775
Acquired NALs (5)
Commercial and industrial	$	9,022
Commercial real estate	943
Automobile	1,070
Residential mortgage	7,343
RV and marine	245
Home equity	5,765
Other consumer	—
Total nonaccrual loans and leases	24,388
Other real estate, net:
Residential	7,606
Commercial	16,594
Total other real estate, net	24,200
Other NPAs(2)	—

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Total nonperforming assets (4)	$	48,588
Total NALs
Commercial and industrial	$	234,184		$	175,195		$	71,974		$	56,615		$	90,705
Commercial real estate	20,508			28,984			48,523			73,417			127,128
Automobile	5,766			6,564			4,623			6,303			7,823
Residential mortgage	90,502			94,560			96,564			119,532			122,452
RV and marine	245			—			—			—			—
Home equity	71,798			66,278			78,515			66,169			59,519
Other consumer	—			—			45			20			6
Total nonaccrual loans and leases	423,003			371,581			300,244			322,056			407,633
Other real estate, net:
Residential	30,932			24,194			29,291			23,447			21,378
Commercial	19,998			3,148			5,748			4,217			6,719
Total other real estate, net	50,930			27,342			35,039			27,664			28,097
Other NPAs(2)	6,968			—			2,440			2,440			10,045
Total nonperforming assets (4)	$	480,901		$	398,923		$	337,723		$	352,160		$	445,775
Nonaccrual loans and leases as a % of total loans and leases	0.63		%	0.74		%	0.63		%	0.75		%	1.00		%
NPA ratio(3)	0.72			0.79			0.71			0.82			1.09

(1) Excludes loans transferred to held-for-sale.

(2) Other nonperforming assets represent an investment security backed by a municipal bond.

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

(4) Nonaccruing troubled debt restructured loans are included in the total nonperforming assets balance.

(5) Represents loans from FirstMerit acquisition.

The $82 million, or 21%, increase in NPAs compared with December 31, 2015, primarily reflected:

• $59 million, or 34%, increase in C&I NALs, with the majority of the increase in our energy related portfolios, noting that the performance of the energy portfolio has stabilized since the 2016 first quarter.

• $24 million, or 86%, increase in OREO, predominantly associated with an increase in commercial properties from the FirstMerit acquisition.

Partially offset by declines in the Residential and CRE portfolios.

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The following table reflects period-end accruing loans and leases 90 days or more past due for each of the last five years:

Table 14 - Accruing Past Due Loans and Leases
(dollar amounts in thousands)
	December 31,
	2016			2015			2014			2013			2012
Accruing loans and leases past due 90 days or more:
Commercial and industrial (1)	$	18,148		$	8,724		$	4,937		$	14,562		$	26,648
Commercial real estate (2)	17,215			9,549			18,793			39,142			56,660
Automobile	10,182			7,162			5,703			5,055			4,418
Residential mortgage (excluding loans guaranteed by the U.S. Government)	15,074			14,082			33,040			2,469			2,718
RV and marine finance	1,462			—			—			—			—
Home equity	11,508			9,044			12,159			13,983			18,200
Other consumer	3,895			1,394			837			998			1,672
Total, excl. loans guaranteed by the U.S. Government	77,484			49,955			75,469			76,209			110,316
Add: loans guaranteed by U.S. Government	51,878			55,835			55,012			87,985			90,816
Total accruing loans and leases past due 90 days or more, including loans guaranteed by the U.S. Government	$	129,362		$	105,790		$	130,481		$	164,194		$	201,132
Ratios:
Excluding loans guaranteed by the U.S. Government, as a percent of total loans and leases	0.12		%	0.10		%	0.16		%	0.18		%	0.27		%
Guaranteed by U.S. Government, as a percent of total loans and leases	0.08			0.11			0.12			0.20			0.22
Including loans guaranteed by the U.S. Government, as a percent of total loans and leases	0.19			0.21			0.27			0.38			0.49

(1) Amounts include Huntington Technology Finance administrative lease delinquencies and accruing purchase impaired loans related to acquisitions.

(2) Amounts include accruing purchase impaired loans related to acquisitions.

TDR Loans

TDRs are modified loans where a concession was provided to a borrower experiencing financial difficulties. TDRs can be classified as either accruing or nonaccruing loans. Nonaccruing TDRs are included in NALs whereas accruing TDRs are excluded from NALs, as it is probable that all contractual principal and interest due under the restructured terms will be collected. TDRs primarily reflect our loss mitigation efforts to proactively work with borrowers in financial difficulty or to comply with regulations regarding the treatment of certain bankruptcy filing and discharge situations. Acquired, non-purchased credit impaired loans are only considered for TDR reporting for modifications made subsequent to acquisition. Over the past five quarters, the accruing component of the total TDR balance has been between 80% and 84% indicating there is no identified credit loss and the borrowers continue to make their monthly payments.  In fact, over 80% of the $513 million of accruing TDRs secured by residential real estate (Residential mortgage and Home Equity in Table 15) 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 as presented in Table 16 come from the non-accruing TDR balances.

53

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

Table 15 - Accruing and Nonaccruing Troubled Debt Restructured Loans
(dollar amounts in thousands)
	December 31,
	2016		2015		2014		2013		2012
TDRs—accruing:
Commercial and industrial	$	210,119	$	235,689	$	116,331	$	83,857	$	76,586
Commercial real estate	76,844		115,074		177,156		204,668		208,901
Automobile	26,382		24,893		26,060		30,781		35,784
Home equity	269,709		199,393		252,084		188,266		110,581
Residential mortgage	242,901		264,666		265,084		305,059		290,011
RV and marine finance	—		—		—		—		—
Other consumer	3,780		4,488		4,018		1,041		2,544
Total TDRs—accruing	829,735		844,203		840,733		813,672		724,407
TDRs—nonaccruing:
Commercial and industrial	107,087		56,919		20,580		7,291		19,268
Commercial real estate	4,507		16,617		24,964		23,981		32,548
Automobile	4,579		6,412		4,552		6,303		7,823
Home equity	28,128		20,996		27,224		20,715		6,951
Residential mortgage	59,157		71,640		69,305		82,879		84,515
RV and marine finance	—		—		—		—		—
Other consumer	118		151		70		—		113
Total TDRs—nonaccruing	203,576		172,735		146,695		141,169		151,218
Total TDRs	$	1,033,311	$	1,016,938	$	987,428	$	954,841	$	875,625

Our strategy is to structure TDRs in a manner that avoids new concessions subsequent to the initial TDR terms. However, there are times when subsequent modifications are required, such as when the modified loan matures. Often the loans are performing in accordance with the TDR terms, and a new note is originated with similar modified terms. These loans are subjected to the normal underwriting standards and processes for other similar credit extensions, both new and existing. If the loan is not performing in accordance with the existing TDR terms, typically an individualized approach to repayment is established. In accordance with GAAP, the refinanced note is evaluated to determine if it is considered a new loan or a continuation of the prior loan. A new loan is considered for removal of the TDR designation. A continuation of the prior note requires the continuation of the TDR designation, and because the refinanced note constitutes a new or amended debt instrument, it is included in our TDR activity table (below) as a new TDR and a restructured TDR removal during the period.

The types of concessions granted for existing TDRs are consistent with those granted on new TDRs and include interest rate reductions, amortization or maturity date changes beyond what the collateral supports, and principal forgiveness based on the borrower’s specific needs at a point in time. Our policy does not limit the number of times a loan may be modified. A loan may be modified multiple times if it is considered to be in the best interest of both the borrower and us.

Commercial loans are not automatically considered to be accruing TDRs upon the granting of a new concession. If the loan is in accruing status and no loss is expected based on the modified terms, the modified TDR remains in accruing status. For loans that are on nonaccrual status before the modification, collection of both principal and interest must not be in doubt, and the borrower must be able to exhibit sufficient cash flows for at least a six-month period of time to service the debt in order to return to accruing status. This six-month period could extend before or after the restructure date.

Any granted change in terms or conditions that are not readily available in the market for that borrower, requires the designation as a TDR. There are no provisions for the removal of the TDR designation based on payment activity for consumer loans. A loan may be returned to accrual status when all contractually due interest and principal has been paid and the borrower demonstrates the financial capacity to continue to pay as agreed, with the risk of loss diminished. During the 2016 third quarter, Huntington transferred $81 million of home equity TDRs from loans held for sale back to loans.

54

The following table reflects TDR activity during the periods indicated:

Table 16 - Troubled Debt Restructured Loan Activity
(dollar amounts in thousands)
	Year Ended December 31,
	2016			2015
TDRs—accruing: (3)
TDRs, beginning of period	$	844,203		$	840,733
New TDRs	543,006			731,783
Payments	(214,144		)	(225,219		)
Charge-offs	(3,547		)	(5,816		)
Sales	(18,801		)	(14,204		)
Transfer from (to) held-for-sale	74,424			(88,415		)
Transfer to OREO	(435		)	(668		)
Restructured TDRs—accruing (1)	(289,745		)	(297,688		)
Restructured TDRs—nonaccruing (1)	—			—
Other (2)	(105,226		)	(96,303		)
TDRs, end of period	$	829,735		$	844,203
TDRs—nonaccruing: (3)
TDRs, beginning of period	$	172,735		$	146,695
New TDRs	134,708			162,917
Payments	(82,258		)	(65,139		)
Charge-offs	(34,605		)	(37,675		)
Sales	(1,445		)	(2,858		)
Transfer from (to) held-for-sale	6,656			(8,371		)
Transfer to OREO	(10,140		)	(9,444		)
Restructured TDRs—accruing (1)	—			—
Restructured TDRs—nonaccruing (1)	(42,937		)	(98,474		)
Other (2)	60,862			85,084
TDRs, end of period	$	203,576		$	172,735
	Year Ended December 31,
	2016			2015			2014			2013			2012
Total TDRs, beginning of period (3)	$	1,016,938		$	987,428		$	954,841		$	875,625		$	805,650
New TDRs	677,714			894,700			667,315			611,556			597,425
Payments	(296,402		)	(290,358		)	(252,285		)	(191,367		)	(191,035		)
Charge-offs	(38,152		)	(43,491		)	(35,150		)	(29,897		)	(81,115		)
Sales	(20,246		)	(17,062		)	(23,424		)	(11,164		)	(13,787		)
Transfer from (to) held-for-sale	81,080			(96,786		)	—			—			—
Transfer to OREO	(10,575		)	(10,112		)	(12,668		)	(8,242		)	(21,709		)
Restructured TDRs—accruing (1)	(289,745		)	(297,688		)	(243,225		)	(211,131		)	(153,583		)
Restructured TDRs—nonaccruing (1)	(42,937		)	(98,474		)	(45,705		)	(26,772		)	(63,080		)
Other	(44,364		)	(11,219		)	(22,271		)	(53,767		)	(3,141		)
Total TDRs, end of period	$	1,033,311		$	1,016,938		$	987,428		$	954,841		$	875,625

55

(1) Represents existing TDRs that were underwritten with new terms providing a concession. A corresponding amount is included in the New TDRs amount above.

(2) Primarily includes transfers between accruing and nonaccruing categories.

(3) Effective 2015, we began tracking accruing and non-accruing TDR information.

ACL

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 loan losses or increased risk levels resulting from loan risk-rating downgrades, while 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. (see Note 1 of the Notes to Consolidated Financial Statements)

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.

Our ACL evaluation process includes the on-going assessment of credit quality metrics, and a comparison of certain ACL benchmarks to current performance. While the total ACL balance increased year over year, all of the relevant benchmarks remain strong.

56

The following table reflects activity in the ALLL and AULC for each of the last five years:

Table 17 - Summary of Allowance for Credit Losses
(dollar amounts in thousands)
	Year Ended December 31,
	2016			2015			2014			2013			2012
ALLL, beginning of year	$	597,843		$	605,196		$	647,870		$	769,075		$	964,828
Loan and lease charge-offs
Commercial:
Commercial and industrial	(76,802		)	(79,724		)	(76,654		)	(45,904		)	(101,475		)
Commercial real estate:
Construction	(2,124		)	(1,843		)	(5,626		)	(9,585		)	(12,131		)
Commercial	(12,988		)	(16,233		)	(19,078		)	(59,927		)	(105,920		)
Commercial real estate	(15,112		)	(18,076		)	(24,704		)	(69,512		)	(118,051		)
Total commercial	(91,914		)	(97,800		)	(101,358		)	(115,416		)	(219,526		)
Consumer:
Automobile	(49,541		)	(36,489		)	(31,330		)	(23,912		)	(26,070		)
Home equity	(25,527		)	(36,481		)	(54,473		)	(98,184		)	(124,286		)
Residential mortgage	(10,851		)	(15,696		)	(25,946		)	(34,236		)	(52,228		)
RV and marine finance	(2,769		)	—			—			—			—
Other consumer	(46,712		)	(31,415		)	(33,494		)	(34,568		)	(33,090		)
Total consumer	(135,400		)	(120,081		)	(145,243		)	(190,900		)	(235,674		)
Total charge-offs	(227,314		)	(217,881		)	(246,601		)	(306,316		)	(455,200		)
Recoveries of loan and lease charge-offs
Commercial:
Commercial and industrial	31,687			51,800			44,531			29,514			37,227
Commercial real estate:
Construction	4,208			2,667			4,455			3,227			4,090
Commercial	37,243			31,952			29,616			41,431			35,532
Total commercial real estate	41,451			34,619			34,071			44,658			39,622
Total commercial	73,138			86,419			78,602			74,172			76,849
Consumer:
Automobile	17,550			16,198			13,762			13,375			16,628
Home equity	16,523			16,631			17,526			15,921			7,907
Residential mortgage	5,027			5,570			6,194			7,074			4,305
RV and marine finance	481			—			—			—			—
Other consumer	5,699			5,270			5,890			7,108			7,049
Total consumer	45,280			43,669			43,372			43,478			35,889
Total recoveries	118,418			130,088			121,974			117,650			112,738
Net loan and lease charge-offs	(108,896		)	(87,793		)	(124,627		)	(188,666		)	(342,462		)
Provision for loan and lease losses	169,407			88,679			83,082			67,797			155,193
Allowance for assets sold and securitized or transferred to loans held for sale	(19,941		)	(8,239		)	(1,129		)	(336		)	(8,484		)
ALLL, end of year	638,413			597,843			605,196			647,870			769,075
AULC, beginning of year	72,081			60,806			62,899			40,651			48,456
(Reduction in) Provision for unfunded loan commitments and letters of credit losses	21,395			11,275			(2,093		)	22,248			(7,805		)
AULC recorded at acquisition	4,403			—			—			—			—
AULC, end of year	97,879			72,081			60,806			62,899			40,651
ACL, end of year	$	736,292		$	669,924		$	666,002		$	710,769		$	809,726

57

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

Table 18 - Allocation of Allowance for Credit Losses (1)
(dollar amounts in thousands)
	December 31,
	2016				2015				2014				2013				2012
ACL
Originated loans
Commercial
Commercial and industrial	$	324,737	41	%	$	298,746	41	%	$	286,995	40	%	$	265,801	41	%	$	241,051	42	%
Commercial real estate	95,483		11		100,007		10		102,839		11		162,557		11		285,369		14
Total commercial	420,220		52		398,753		51		389,834		51		428,358		52		526,420		56
Consumer
Automobile	47,970		18		49,504		19		33,466		18		31,053		15		34,979		11
Home equity	65,474		16		83,671		17		96,413		18		111,131		19		118,764		20
Residential mortgage	30,986		13		41,646		12		47,211		12		39,577		12		61,658		12
RV and marine finance	832		—		—		—		—		—		—		—		—		—
Other consumer	34,233		1		24,269		1		38,272		1		37,751		2		27,254		1
Total consumer	179,495		48		199,090		49		215,362		49		219,512		48		242,655		44
Total ALLL	599,715		100	%	597,843		100	%	605,196		100	%	647,870		100	%	769,075		100	%
AULC	81,299				72,081				60,806				62,899				40,651
Total ACL	$	681,014			$	669,924			$	666,002			$	710,769			$	809,726
Acquired loans (2)
Commercial
Commercial and industrial	$	30,687	47	%
Commercial real estate	184		11
Total commercial	30,871		58
Consumer
Automobile	—		10
Home equity	—		11
Residential mortgage	2,412		7
RV and marine finance	4,479		12
Other consumer	936		2
Total consumer	7,827		42
Total ALLL	38,698		100	%
AULC	16,580
Total ACL	$	55,278
Total loans
Commercial
Commercial and industrial	$	355,424	42	%	$	298,746	41	%	$	286,995	40	%	$	265,801	41	%	$	241,051	42	%
Commercial real estate	95,667		11		100,007		10		102,839		11		162,557		11		285,369		14
Total commercial	451,091		53		398,753		51		389,834		51		428,358		52		526,420		56
Consumer
Automobile	47,970		16		49,504		19		33,466		18		31,053		15		34,979		11
Home equity	65,474		15		83,671		17		96,413		18		111,131		19		118,764		20
Residential mortgage	33,398		12		41,646		12		47,211		12		39,577		12		61,658		12
RV and marine finance	5,311		3		—		—		—		—		—		—		—		—
Other consumer	35,169		1		24,269		1		38,272		1		37,751		2		27,254		1
Total consumer	187,322		47		199,090		49		215,362		49		219,512		48		242,655		44
Total ALLL	638,413		100	%	597,843		100	%	605,196		100	%	647,870		100	%	769,075		100	%
AULC	97,879				72,081				60,806				62,899				40,651
Total ACL	$	736,292			$	669,924			$	666,002			$	710,769			$	809,726
Total ALLL as % of:

58

Total loans and leases	0.95	%	1.19	%	1.27	%	1.50	%	1.89	%
Nonaccrual loans and leases	151		161		202		201		189
NPAs	133		150		179		184		173
Total ACL as % of:
Total loans and leases	1.10	%	1.33	%	1.40	%	1.65	%	1.99	%
Nonaccrual loans and leases	174		180		222		221		199
NPAs	153		168		197		202		182

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

(2) Represents loans from FirstMerit acquisition.

The $66 million, or 10%, increase in the ACL compared with December 31, 2015, was driven by:

• $57 million, or 19%, increase in the ALLL of the C&I portfolio was primary driven by the impact of the acquisition and loan growth within the portfolio along with an increase in NALs within our energy related portfolios.

• $26 million, or 36%, increase in the AULC driven primarily by acquired commercial exposures.

• $11 million, or 45%, increase in the ALLL of the other consumer portfolio driven primarily by growth within the credit card portfolio.

Partially offset by:

• $18 million, or 22%, decline in the ALLL of the home equity portfolio. The decline was driven by a reduction in delinquent and nonaccrual loans.

• $8 million, or 20%, decline in the ALLL of the residential mortgage portfolio, also driven by a reduction in delinquency rates within the portfolio.

The ACL to total loans declined to 1.10% at December 31, 2016, compared to 1.33% at December 31, 2015. The reduction in the ratio can be attributed directly to the acquisition of the FirstMerit loan portfolio. We believe 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.

NCOs

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 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 at the time of discharge.

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.

59

The following table reflects NCO detail for each of the last five years: 

Table 19 - Net Loan and Lease Charge-offs
(dollar amounts in thousands)
	Year Ended December 31,
	2016 (2)			2015			2014			2013		2012
Net charge-offs by loan and lease type:
Originated Loans
Commercial:
Commercial and industrial	$	43,929		$	27,924		$	32,123		$	16,390	$	64,248
Commercial real estate:
Construction	(2,084		)	(824		)	1,171			6,358		8,041
Commercial	(24,460		)	(15,719		)	(10,538		)	18,496		70,388
Commercial real estate	(26,544		)	(16,543		)	(9,367		)	24,854		78,429
Total commercial	17,385			11,381			22,756			41,244		142,677
Consumer:
Automobile	27,057			20,291			17,568			10,537		9,442
Home equity	8,073			19,850			36,947			82,263		116,379
Residential mortgage	5,560			10,126			19,752			27,162		47,923
RV and marine finance	—			—			—			—		—
Other consumer	38,627			26,145			27,604			27,460		26,041
Total consumer	79,317			76,412			101,871			147,422		199,785
Total originated net charge-offs	$	96,702		$	87,793		$	124,627		$	188,666	$	342,462
Acquired loans (1)
Commercial:
Commercial and industrial	$	1,186
Commercial real estate:
Construction	—
Commercial	205
Commercial real estate	205
Total commercial	1,391
Consumer:
Automobile	4,934
Home equity	931
Residential mortgage	264
RV and marine finance	2,288
Other consumer	2,386
Total consumer	10,803
Total acquired net charge-offs	$	12,194
Total Loans
Commercial:
Commercial and industrial	$	45,115		$	27,924		$	32,123		$	16,390	$	64,248
Commercial real estate:
Construction	(2,084		)	(824		)	1,171			6,358		8,041
Commercial	(24,255		)	(15,719		)	(10,538		)	18,496		70,388
Commercial real estate	(26,339		)	(16,543		)	(9,367		)	24,854		78,429
Total commercial	18,776			11,381			22,756			41,244		142,677
Consumer:
Automobile	31,991			20,291			17,568			10,537		9,442
Home equity	9,004			19,850			36,947			82,263		116,379

60

Residential mortgage	5,824			10,126			19,752			27,162			47,923
RV and marine finance	2,288			—			—			—			—
Other consumer	41,013			26,145			27,604			27,460			26,041
Total consumer	90,120			76,412			101,871			147,422			199,785
Total net charge-offs	$	108,896		$	87,793		$	124,627		$	188,666		$	342,462
Net charge-offs - annualized percentages:
Commercial:
Commercial and industrial	0.19		%	0.14		%	0.18		%	0.10		%	0.40		%
Commercial real estate:
Construction	(0.19		)	(0.08		)	0.16			1.10			1.38
Commercial	(0.49		)	(0.37		)	(0.25		)	0.42			1.35
Commercial real estate	(0.44		)	(0.32		)	(0.19		)	0.49			1.36
Total commercial	0.06			0.05			0.10			0.19			0.66
Consumer:
Automobile	0.30			0.23			0.23			0.19			0.21
Home equity	0.10			0.23			0.44			0.99			1.40
Residential mortgage	0.09			0.17			0.35			0.52			0.92
RV and marine finance	0.33			—			—			—			—
Other consumer	5.53			5.44			6.99			6.30			5.72
Total consumer	0.32			0.32			0.46			0.75			1.08
Net charge-offs as a % of average loans	0.19		%	0.18		%	0.27		%	0.45		%	0.85		%

(1) Represents loans from FirstMerit acquisition.

(2) Amounts presented above exclude write-downs of loans transferred to loans held-for-sale.

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 that necessary to satisfactorily resolve the problem loan, a reduction in the overall level of the ALLL could be recognized. Consumer loans are treated in 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.

All residential mortgage loans greater than 150-days past due are charged-down to the estimated value of the collateral, less anticipated selling costs. The remaining balance is in delinquent status until a modification can be completed, or the loan goes through the foreclosure process.

2016 versus 2015

NCOs increased $21 million, or 24%, in 2016. Given the low level of C&I and CRE NCO’s, there will continue to be some volatility on a period-to-period 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.

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Interest Rate Risk

OVERVIEW

We actively manage interest rate risk, as changes in market interest rates can have a significant impact on reported earnings. Changes in market interest rates may result in changes in the fair market value of our financial instruments, cash flows, and net interest income. We seek to achieve consistent growth in net interest income and capital while managing volatility arising from shifts in market interest rates. ALCO oversees market risk management, establishing risk measures, limits, and policy guidelines for managing the amount of interest rate risk and its effect on net interest income and capital. According to these policies, responsibility for measuring and the management of interest rate risk resides in the corporate treasury group.

Interest rate risk on our balance sheet consists of reprice, option, and basis risks. Reprice risk results from differences in the maturity, or repricing, of asset and liability portfolios. Option risk arises from embedded options present in the investment portfolio and in many financial instruments such as loan prepayment options, deposit early withdrawal options, and interest rate options. These options allow customers opportunities to benefit when market interest rates change, which typically results in higher costs or lower revenue for us. Basis risk refers to the potential for changes in the underlying relationship between market rates or indices, which subsequently result in a narrowing of profit spread on an earning asset or liability. Basis risk is also present in administered rate liabilities, such as interest-bearing checking accounts, savings accounts, and money market accounts where historical pricing relationships to market rates may change due to the level or directional change in market interest rates. The interest rate risk position is measured and monitored using risk management tools, including earnings simulation modeling and EVE sensitivity analysis, which capture both short-term and long-term interest rate risk exposures. Combining the results from these separate risk measurement processes allows a reasonably comprehensive view of our short-term and long-term interest rate risk.

Interest rate risk measurement is calculated and reported to the ALCO monthly and ROC at least quarterly. The information reported includes period-end results and identifies any policy limits exceeded, along with an assessment of the policy limit breach and the action plan and timeline for resolution, mitigation, or assumption of the risk.

We use two approaches to model interest rate risk: Net interest income at risk (NII at risk) and EVE.

NII at risk uses net interest income simulation analysis which involves forecasting net interest earnings under a variety of scenarios including changes in the level of interest rates, the shape of the yield curve, and spreads between market interest rates. The sensitivity of net interest income to changes in interest rates is measured using numerous interest rate scenarios including shocks, gradual ramps, curve flattening, curve steepening as well as forecasts of likely interest rates scenarios. Modeling the sensitivity of net interest earnings to changes in market interest rates is highly dependent on numerous assumptions incorporated into the modeling process. To the extent that actual performance is different than what was assumed, actual net interest earnings sensitivity may be different than projected. The assumptions used in the models are our best estimates based on studies conducted by the treasury department. The treasury department uses a data warehouse to study interest rate risk at a transactional level and uses various ad-hoc reports to refine assumptions continuously. Assumptions and methodologies regarding administered rate liabilities (e.g., savings, money market and interest-bearing checking accounts), balance trends, and repricing relationships reflect our best estimate of expected behavior and these assumptions are reviewed regularly.

We also have longer-term interest rate risk exposure, which may not be appropriately measured by earnings sensitivity analysis. ALCO uses economic value of equity at risk modeling, or EVE, sensitivity analysis to study the impact of long-term cash flows on earnings and capital. EVE involves discounting present values of all cash flows of on-balance sheet and off-balance sheet items under different interest rate scenarios. The discounted present value of all cash flows represents our EVE. The analysis requires modifying the expected cash flows in each interest rate scenario, which will impact the discounted present value. The amount of base-case measurement and its sensitivity to shifts in the yield curve allow us to measure longer-term repricing and option risk in the balance sheet.

Table 20 - Net Interest Income at Risk
	Net Interest Income at Risk (%)
Basis point change scenario	-25		+100		+200
Board policy limits	—	%	-2.0	%	-4.0	%
December 31, 2016	-1.0	%	2.7	%	5.6	%
December 31, 2015	-0.3	%	0.7	%	0.3	%

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.

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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 our earnings are more asset sensitive at December 31, 2016 than at December 31, 2015, as a result of the $4.9 billion notional value reduction in asset receive-fixed cash flow swaps, the introduction of new non-maturity deposit models in the 2016 first quarter, and the FirstMerit acquisition in the third quarter.

As of December 31, 2016, we had $10.8 billion of notional value in receive-fixed cash flow swaps, which we use for asset and liability management purposes. At December 31, 2016, the following table shows the expected maturity for asset and liability receive-fixed cash flow swaps:

Table 21 - Expected Maturity for Asset and Liability Receive-Fixed Cash Flow Swaps
(dollar amounts in thousands)	Asset receive fixed-generic cash flow swaps		Liability receive fixed-generic cash flow swaps
2017	$	3,250,000	$	500,000
2018	75,000		2,610,000
2019	—		575,000
2020	—		1,300,000
2021	—		990,000
2022	—		1,000,000
Thereafter	—		500,000

Table 22 - Economic Value of Equity at Risk
	Economic Value of Equity at Risk (%)
Basis point change scenario	-25		+100		+200
Board policy limits	—	%	-5.0	%	-12.0	%
December 31, 2016	-0.6	%	0.9	%	0.2	%
December 31, 2015	-0.4	%	0.5	%	-2.1	%

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 many deposit costs reach zero percent.

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 7 of Notes to the Consolidated Financial Statements.)

At December 31, 2016, we had a total of $186 million of capitalized MSRs representing the right to service $18.9 billion in mortgage loans. Of this $186 million, $13.7 million was recorded using the fair value method and $172.5 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 Consolidated Financial Statements.

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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

Liquidity risk is the possibility of us being unable to meet current and future financial obligations in a timely manner. Liquidity is managed to ensure stable, reliable, and cost-effective sources of funds to satisfy demand for credit, deposit withdrawals and investment opportunities. We consider core earnings, strong capital ratios, and credit quality essential for maintaining high credit ratings, which allows us cost-effective access to market-based liquidity. We rely on a large, stable core deposit base and a diversified base of wholesale funding sources to manage liquidity risk. The ALCO is appointed by the ROC to oversee liquidity risk management and the establishment of liquidity risk policies and limits. The treasury department is responsible for identifying, measuring, and monitoring our liquidity profile. The position is evaluated daily, weekly, and monthly by analyzing the composition of all funding sources, reviewing projected liquidity commitments by future months, and identifying sources and uses of funds. The overall management of our liquidity position is also integrated into retail and commercial pricing policies to ensure a stable core deposit base. Liquidity risk is reviewed and managed continuously for the Bank and the parent company, as well as its subsidiaries. In addition, liquidity working groups meet regularly to identify and monitor liquidity positions, provide policy guidance, review funding strategies, and oversee the adherence to, and maintenance of, the contingency funding plans.

Our primary source of liquidity is our core deposit base. Core deposits comprised approximately 94% of total deposits at December 31, 2016. 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 $15.0 billion as of December 31, 2016. 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 scenario. 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 and communication protocols for effectively managing liquidity through a problem period.

Available-for-sale and other securities portfolio

(This section should be read in conjunction with Note 5 of the Notes to Consolidated Financial Statements.)

Our investment securities portfolio is evaluated under established asset/liability management objectives. Changing market conditions could affect the profitability of the portfolio, as well as the level of interest rate risk exposure.

The composition and maturity of the portfolio is presented on the following two tables:

Table 23 - Available-for-sale and other securities Portfolio Summary at Fair Value
(dollar amounts in thousands)	At December 31,
	2016		2015		2014
U.S. Treasury, Federal agency, and other agency securities	$	10,752,381	$	4,643,073	$	5,679,696
Other	4,810,456		4,132,368		3,704,974
Total available-for-sale and other securities	$	15,562,837	$	8,775,441	$	9,384,670
Duration in years (1)	4.7		5.2		3.9

(1) The average duration assumes a market driven prepayment rate on securities subject to prepayment.

Table 24 - Available-for-sale and other securities Portfolio Composition and Maturity
(dollar amounts in thousands)	At December 31, 2016
	Amortized

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	Cost		Fair Value		Yield (1)
U.S. Treasury, Federal agency, and other agency securities:
U.S. Treasury:
1 year or less	$	4,978	$	4,988	1.12	%
After 1 year through 5 years	502		509		1.94
After 5 years through 10 years	—		—		—
After 10 years	—		—		—
Total U.S. Treasury	5,480		5,497		1.20
Federal agencies: mortgage-backed securities:
1 year or less	—		—		—
After 1 year through 5 years	46,591		46,762		2.72
After 5 years through 10 years	173,941		176,404		2.90
After 10 years	10,630,929		10,450,176		2.22
Total Federal agencies: mortgage-backed securities	10,851,461		10,673,342		2.24
Other agencies:
1 year or less	4,302		4,367		3.39
After 1 year through 5 years	5,092		5,247		3.00
After 5 years through 10 years	63,618		63,928		2.48
After 10 years	—		—		—
Total other agencies	73,012		73,542		2.57
Total U.S. Treasury, Federal agency, and other agency securities	10,929,953		10,752,381		—
Municipal securities:
1 year or less	169,636		166,887		3.70
After 1 year through 5 years	933,893		933,903		3.36
After 5 years through 10 years	1,463,459		1,464,583		3.58
After 10 years	693,440		684,684		4.28
Total municipal securities	3,260,428		3,250,057		3.68
Private-label CMO:					—
1 year or less	—		—		—
After 1 year through 5 years	—		—		3.19
After 5 years through 10 years	—		—		—
After 10 years	—		—		3.21
Total private-label CMO	—		—		3.21
Asset-backed securities:
1 year or less	—		—		—
After 1 year through 5 years	80,700		80,560		2.54
After 5 years through 10 years	223,352		224,565		2.80
After 10 years	520,072		488,356		2.93
Total asset-backed securities	824,124		793,481		2.86
Corporate debt:
1 year or less	43,223		43,603		4.29
After 1 year through 5 years	78,430		80,196		3.74
After 5 years through 10 years	32,523		32,865		3.66
After 10 years	40,361		42,019		3.15
Total corporate debt	194,537		198,683		3.73
Other:
1 year or less	1,650		1,650		2.39

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After 1 year through 5 years	2,302		2,283		2.76
After 5 years through 10 years	—		—		N/A
After 10 years	10		10		N/A
Non-marketable equity securities (2)	547,704		547,704		3.17
Mutual funds	15,286		15,286		N/A
Marketable equity securities (3)	861		1,302		N/A
Total other	567,813		568,235		3.07
Total available-for-sale and other securities	$	15,776,855	$	15,562,837	2.61	%

(1) Weighted average yields were calculated using amortized cost on a fully-taxable equivalent basis, assuming a 35% tax rate.

(2) Consists of FHLB and FRB restricted stock holding carried at par. For 2016, the Federal Reserve reduced the dividend rate on FRB stock from 6% to 2.45%, the current 10-year Treasury rate for banks with more than $10 billion in assets.

(3) Consists of certain mutual fund and equity security holdings.

Investment securities portfolio

The expected weighted average maturities of our AFS and HTM portfolios are significantly shorter than their contractual maturities as reflected in Note 5 and Note 6 of the Notes to Consolidated Financial Statements. Particularly regarding the MBS and ABS, prepayments of principal and interest that historically occur in advance of scheduled maturities will shorten the expected life of these portfolios. The expected weighted average maturities, which take into account expected prepayments of principal and interest under existing interest rate conditions, are shown in the following table:

Table 25 - Expected Life of Investment Securities
(dollar amounts in thousands)	At December 31, 2016
	Available-for-Sale & Other Securities				Held-to-Maturity Securities
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
1 year or less	$	394,532	$	389,422	$	11,479	$	11,469
After 1 year through 5 years	4,135,992		4,131,335		2,544,725		2,534,949
After 5 years through 10 years (1)	9,895,629		9,709,394		5,244,564		5,234,948
After 10 years	786,442		767,986		6,171		5,902
Other securities	564,260		564,700		—		—
Total	$	15,776,855	$	15,562,837	$	7,806,939	$	7,787,268

(1) The average duration of the securities with an average life of 5 years to 10 years is 5.28 years

Bank Liquidity and Sources of Funding

Our primary sources of funding for the Bank are retail and commercial core deposits. At December 31, 2016, these core deposits funded 72% of total assets (107% 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 and were $23 million and $16 million at December 31, 2016 and December 31, 2015, respectively.

The following tables reflect contractual maturities of other domestic time deposits of $250,000 or more and brokered deposits and negotiable CDs as well as other domestic time deposits of $100,000 or more and brokered deposits and negotiable CDs at December 31, 2016.

Table 26 - Maturity Schedule of time deposits, brokered deposits, and negotiable CDs
(dollar amounts in millions)	At December 31, 2016
	3 Months or Less		3 Months to 6 Months		6 Months to 12 Months		12 Months or More		Total
Other domestic time deposits of $250,000 or more and brokered deposits and negotiable CDs	$	3,770	$	60	$	145	$	203	$	4,178
Other domestic time deposits of $100,000 or more and brokered deposits and negotiable CDs	$	3,938	$	170	$	350	$	438	$	4,896

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The following table reflects deposit composition detail for each of the last three years:

Table 27 - Deposit Composition
(dollar amounts in millions)	At December 31,
	2016				2015				2014
By Type:
Demand deposits—noninterest-bearing	$	22,836	30	%	$	16,480	30	%	$	15,393	30	%
Demand deposits—interest-bearing	15,676		21		7,682		14		6,248		12
Money market deposits	18,407		24		19,792		36		18,986		37
Savings and other domestic deposits	11,975		16		5,246		9		5,048		10
Core certificates of deposit	2,535		3		2,382		4		2,936		5
Total core deposits:	71,429		94		51,582		93		48,612		94
Other domestic deposits of $250,000 or more	394		1		501		1		198		—
Brokered deposits and negotiable CDs	3,784		5		2,944		5		2,522		5
Deposits in foreign offices	—		—		268		1		401		1
Total deposits	$	75,608	100	%	$	55,295	100	%	$	51,733	100	%
Total core deposits:
Commercial	$	31,887	45	%	$	24,474	47	%	$	19,982	44	%
Consumer	39,542		55		27,108		53		25,355		56
Total core deposits	$	71,429	100	%	$	51,582	100	%	$	45,337	100	%

The following table reflects short-term borrowings detail for each of the last three years:

Table 28 - Federal Funds Purchased and Repurchase Agreements
(dollar amounts in millions)	At December 31,
	2016			2015			2014
Weighted average interest rate at year-end
Federal Funds purchased and securities sold under agreements to repurchase	0.35		%	0.13		%	0.08		%
Federal Home Loan Bank advances	0.65			—			0.14
Other short-term borrowings	0.66			0.27			1.11
Maximum amount outstanding at month-end during the year
Federal Funds purchased and securities sold under agreements to repurchase	$	1,537		$	1,120		$	1,491
Federal Home Loan Bank advances	2,425			1,850			2,375
Other short-term borrowings	64			43			56
Average amount outstanding during the year
Federal Funds purchased and securities sold under agreements to repurchase	$	690		$	784		$	987
Federal Home Loan Bank advances	822			542			1,753
Other short-term borrowings	18			20			21
Weighted average interest rate during the year
Federal Funds purchased and securities sold under agreements to repurchase	0.14		%	0.06		%	0.07		%
Federal Home Loan Bank advances	0.44			0.16			0.06
Other short-term borrowings	2.86			1.17			1.63

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. Information regarding amounts pledged, for the ability to borrow if necessary, and the unused borrowing capacity at both the Federal Reserve Bank and the FHLB, is outlined in the following table:

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Table 29 - Federal Reserve Bank and FHLB Borrowing Capacity
(dollar amounts in billions)	At December 31,
	2016		2015
Loans and securities pledged:
Federal Reserve Bank	$	10.0	$	8.3
FHLB	9.7		9.2
Total loans and securities pledged	$	19.7	$	17.5
Total unused borrowing capacity at Federal Reserve Bank and FHLB	$	14.1	$	13.6

(For further information related to debt issuances please see Note 11 of the Notes to Consolidated Financial Statements.)

To the extent we are unable to obtain sufficient liquidity through core deposits, we may meet our liquidity needs through sources of wholesale funding, asset securitization, or sale.  Sources of wholesale funding include other domestic deposits of $250,000 or more, brokered deposits and negotiable CDs, deposits in foreign offices, short-term borrowings, and long-term debt. At December 31, 2016, total wholesale funding was $16.2 billion, an increase from $11.4 billion at December 31, 2015. The increase from prior year-end primarily relates to an increase in short-term borrowings, brokered time deposits and negotiable CDs, and long-term debt, partially offset by a decrease in deposits in foreign offices and domestic time deposits of $250,000 or more.

Liquidity Coverage Ratio

At December 31, 2016, we believe the Bank had sufficient liquidity to be in compliance with the LCR requirements and to meet its cash flow obligations for the foreseeable future.

Table 30 - Maturity Schedule of Commercial Loans
(dollar amounts in millions)	At December 31, 2016
	One Year or Less			One to Five Years			After Five Years			Total			Percent of total
Commercial and industrial	$	6,557		$	16,805		$	4,697		$	28,059		79	%
Commercial real estate—construction	536			823			87			1,446			4
Commercial real estate—commercial	1,374			3,465			1,016			5,855			17
Total	$	8,467		$	21,093		$	5,800		$	35,360		100	%
Variable-interest rates	$	7,170		$	16,487		$	3,419		$	27,076		77	%
Fixed-interest rates	1,297			4,606			2,381			8,284			23
Total	$	8,467		$	21,093		$	5,800		$	35,360		100	%
Percent of total	24		%	60		%	16		%	100		%

At December 31, 2016, 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 $5.0 billion. There were no securities of a non-governmental single issuer that exceeded 10% of shareholders’ equity at December 31, 2016.

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 December 31, 2016 and December 31, 2015, the parent company had $1.8 billion and $0.9 billion, respectively, in cash and cash equivalents. The increase primarily relates to 2016 issuances of long-term debt and preferred stock.

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On January 18, 2017, the board of directors declared a quarterly common stock cash dividend of $0.08 per common share. The dividend is payable on April 3 2017, to shareholders of record on March 20, 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 January 18, 2017, the board of directors declared a quarterly Series A, Series, B, Series, C, and Series D Preferred Stock dividend payable on April 17, 2017 to shareholders of record on April 1, 2017. Based on the current dividend, cash demands required for Series A Preferred Stock are estimated to be approximately $8 million per quarter. Cash demands required for Series B Preferred Stock are expected to be less than $1 million per quarter. Cash demands required for Series C Preferred Stock are expected to be approximately $2 million per quarter. Cash demands required for Series D Preferred Stock are expected to be approximately $9 million per quarter.

During the fourth quarter, the Bank declared a return of capital to the holding company of $225 million payable in the 2017 first quarter. To help meet any additional liquidity needs, the parent company may issue debt or equity securities from time to time. In April 2016, the Bank issued $490 million of preferred stock to the holding company. In the 2016 third and fourth quarter, the Bank declared and paid a preferred dividend of $7 million to the holding company.

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, interest rate swaps, financial guarantees contained in standby letters-of-credit issued by the Bank, and commitments by the Bank to sell mortgage loans.

COMMITMENTS TO EXTEND CREDIT

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. See Note 21 for more information.

INTEREST RATE SWAPS

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 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. See Note 19 for more information.

STANDBY LETTERS-OF-CREDIT

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 and are expected to expire without being drawn upon. Standby letters-of-credit are included in the determination of the amount of risk-based capital that the parent company and the Bank are required to hold. Through our credit process, we monitor the credit risks of outstanding standby letters-of-credit. When it is probable that a standby letter-of-credit will be drawn and not repaid in full, a loss is recognized in the provision for credit losses. See Note 21 for more information.

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. In addition, we have commitments to sell residential real estate loans. These contracts mature in less than one year. See Note 21 for more information.

We believe that off-balance sheet arrangements are properly considered in our liquidity risk management process.

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Table 31 - Contractual Obligations (1)
(dollar amounts in millions)	At December 31, 2016
	One Year or Less		1 to 3 Years		3 to 5 Years		More than 5 Years		Total
Deposits without a stated maturity	$	67,786	$	—	$	—	$	—	$	67,786
Certificates of deposit and other time deposits	4,498		1,839		1,164		321		7,822
Short-term borrowings	3,693		—		—		—		3,693
Long-term debt	814		3,385		2,426		1,758		8,383
Operating lease obligations	59		102		76		152		389
Purchase commitments	96		112		34		16		258

(1) Amounts do not include associated interest payments.

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 is inherently large and complex. Our objective for managing execution risk is to minimize impacts to daily operations. We have an established Integration Management Office led by senior management. Responsibilities include central management, reporting, and escalation of key integration deliverables. In addition, a board level Integration Governance Committee has been established to assist in the oversight of the integration of people, systems, and processes of FirstMerit with Huntington.

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.

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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

(This section should be read in conjunction with the Regulatory Matters section included in Part 1, Item 1 and Note 22 of the Notes to Consolidated Financial Statements.)

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.

Regulatory Capital

We are subject to the Basel III capital requirements including the standardized approach for calculating risk-weighted assets in accordance with subpart D of the final capital rule. The following table presents risk-weighted assets and other financial data necessary to calculate certain financial ratios, including the common CET1 on a Basel III basis, which we use to measure capital adequacy.

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Table 32 - Capital Under Current Regulatory Standards (transitional Basel III basis) (Non-GAAP)
(dollar amounts in millions, except per share amounts)
	At December 31,
	2016			2015
Common equity tier 1 risk-based capital ratio:
Total shareholders’ equity	$	10,308		$	6,595
Regulatory capital adjustments:
Shareholders’ preferred equity and related surplus	(1,076		)	(386		)
Accumulated other comprehensive loss (income) offset	401			226
Goodwill and other intangibles, net of taxes	(2,126		)	(695		)
Deferred tax assets that arise from tax loss and credit carryforwards	(21		)	(19		)
Common equity tier 1 capital	7,486			5,721
Additional tier 1 capital
Shareholders’ preferred equity	1,076			386
Qualifying capital instruments subject to phase-out	—			76
Other	(15		)	(29		)
Tier 1 capital	8,547			6,154
LTD and other tier 2 qualifying instruments	932			563
Qualifying allowance for loan and lease losses	736			670
Tier 2 capital	1,668			1,233
Total risk-based capital	$	10,215		$	7,387
Risk-weighted assets (RWA)	$	78,263		$	58,420
Common equity tier 1 risk-based capital ratio	9.56		%	9.79		%
Other regulatory capital data:
Tier 1 leverage ratio	8.70			8.79
Tier 1 risk-based capital ratio	10.92			10.53
Total risk-based capital ratio	13.05			12.64
Tangible common equity / RWA ratio	8.92			9.41

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Table 33 - Capital Adequacy—Non-Regulatory (Non-GAAP)
(dollar amounts in millions)
	At December 31,
	2016			2015
Consolidated capital calculations:
Common shareholders’ equity	$	9,237		$	6,209
Preferred shareholders’ equity	1,071			386
Total shareholders’ equity	10,308			6,595
Goodwill	(1,993		)	(677		)
Other intangible assets	(402		)	(55		)
Other intangible asset deferred tax liability (1)	141			19
Total tangible equity	8,054			5,882
Preferred shareholders’ equity	(1,071		)	(386		)
Total tangible common equity	$	6,983		$	5,496
Total assets	$	99,714		$	71,018
Goodwill	(1,993		)	(677		)
Other intangible assets	(402		)	(55		)
Other intangible asset deferred tax liability (1)	141			19
Total tangible assets	$	97,460		$	70,305
Tangible equity / tangible asset ratio	8.26		%	8.37		%
Tangible common equity / tangible asset ratio	7.16			7.82

(1) Other intangible assets are net of deferred tax liability, and calculated assuming a 35% tax rate.

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The following table presents certain regulatory capital data at both the consolidated and Bank levels for the past two years:

Table 34 - Regulatory Capital Data (1)
(dollar amounts in millions)
		At December 31,
		Basel III
		2016			2015
Total risk-weighted assets	Consolidated	$	78,263		$	58,420
	Bank	78,242			58,351
Common equity tier 1 risk-based capital	Consolidated	7,486			5,721
	Bank	8,153			5,519
Tier 1 risk-based capital	Consolidated	8,547			6,154
	Bank	9,086			5,735
Tier 2 risk-based capital	Consolidated	1,668			1,233
	Bank	1,732			1,115
Total risk-based capital	Consolidated	10,215			7,387
	Bank	10,818			6,851
Tier 1 leverage ratio	Consolidated	8.70		%	8.79		%
	Bank	9.29			8.21
Common equity tier 1 risk-based capital ratio	Consolidated	9.56			9.79
	Bank	10.42			9.46
Tier 1 risk-based capital ratio	Consolidated	10.92			10.53
	Bank	11.61			9.83
Total risk-based capital ratio	Consolidated	13.05			12.64
	Bank	13.83			11.74

All capital ratios were impacted by the $1.3 billion of goodwill created and the issuance of $2.8 billion 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 $400 million and $200 million of Class D preferred equity during the 2016 first and second quarters, respectively, and the issuance of $100 million 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 $40 million of trust preferred securities during the 2016 fourth quarter and $20 million of trust preferred securities during the 2016 third quarter, both of which were executed under the de minimis clause of the Federal Reserve's CCAR rules. In addition, $5 million of trust preferred securities were acquired in the FirstMerit acquisition and subsequently were redeemed.

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 $10.3 billion at December 31, 2016, an increase of $3.7 billion when compared with December 31, 2015. In connection with the FirstMerit merger, during the 2016 third quarter, we issued $2.8 billion of common stock and $0.1 billion of preferred stock. During the 2016 first and second quarter, we issued $400 million and $200 million of preferred stock, respectively. Costs of $15 million related to the issuances are reported as a direct deduction from the face amount of the stock.

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.

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Dividends

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

Share Repurchases

From time to time the board of directors authorizes the Company to repurchase shares of our common stock. Although we announce when the board of directors authorizes share repurchases, we typically do not give any public notice before we repurchase our shares. Future stock repurchases may be private or open-market repurchases, including block transactions, accelerated or delayed block transactions, forward transactions, and similar transactions. Various factors determine the amount and timing of our share repurchases, including our capital requirements, the number of shares we expect to issue for employee benefit plans and acquisitions, market conditions (including the trading price of our stock), and regulatory and legal considerations, including the FRB’s response to our annual capital plan. Our capital plan continues the previously announced suspension of our share repurchase program. There were no common shares repurchased during 2016.

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.

On August 16, 2016, we completed our acquisition of FirstMerit Corporation and segment results were impacted by the mid-quarter acquisition.

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

Net income by business segment for the past three years is presented in the following table:

Table 35 - Net Income (Loss) by Business Segment
(dollar amounts in thousands)	Year ended December 31,
	2016			2015			2014
Consumer and Business Banking	$	358,146		$	236,298		$	172,199
Commercial Banking	197,375			198,008			152,653
CREVF	203,029			164,830			196,377
RBHPCG	68,504			37,861			22,010
Home Lending	17,837			(6,561		)	(19,727		)
Treasury / Other	(133,070		)	62,521			108,880
Net income	$	711,821		$	692,957		$	632,392

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.

The net loss reported by the Treasury / Other function reflected a combination of factors:

• The impact of our investment securities portfolios and the net impact of derivatives used to hedge interest rate sensitivity.

• $282 million of FirstMerit acquisition-related expense, $42 million reduction to litigation reserves, 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 36 - Key Performance Indicators for Consumer and Business Banking
(dollar amounts in thousands unless otherwise noted)
	Year ended December 31,						Change from 2015
	2016			2015			Amount			Percent		2014
Net interest income	$	1,272,713		$	1,027,950		$	244,763		24	%	$	912,992
Provision for credit losses	71,945			42,777			29,168			68		75,529
Noninterest income	558,811			478,142			80,669			17		409,746
Noninterest expense	1,208,585			1,099,779			108,806			10		982,288
Provision for income taxes	192,848			127,238			65,610			52		92,722
Net income	$	358,146		$	236,298		$	121,848		52	%	$	172,199
Number of employees (average full-time equivalent)	6,488			5,776			712			12	%	5,239
Total average assets (in millions)	$	17,963		$	15,571		$	2,392		15		$	14,861
Total average loans/leases (in millions)	15,187			13,581			1,606			12		13,034
Total average deposits (in millions)	36,442			30,200			6,242			21		29,023
Net interest margin	3.58		%	3.47		%	0.11		%	3		3.19		%
NCOs	$	70,139		$	62,729		$	7,410		12		$	90,628
NCOs as a % of average loans and leases	0.46		%	0.46		%	—		%	—	%	0.70		%

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2016 vs. 2015

Consumer and Business Banking reported net income of $358 million in 2016. This was an increase of $122 million, or 52%, compared to the year-ago period. The increase in net income reflected a combination of factors described below.

The increase in net interest income from the year-ago period reflected:

• $6.2 billion, or 21%, increase in total average deposits and a 10 basis point increase in deposit spreads, as a result of an increase in the FTP rates assigned to deposits.

• $1.6 billion or 12%, increase in total average loans combined with an 18 basis point increase in loan spreads, as a result of a reduction in the FTP rates assigned to loans and improved effective rates.

The increase in the provision for credit losses from the year-ago period reflected:

• The migration of the acquired portfolio to the originated portfolio, which required a reserve build, portfolio growth, and a $7 million, or 12%, increase in NCOs.

The increase in total average loans and leases from the year-ago period reflected:

• $1.2 billion, or 13%, increase in consumer loans, primarily due to the acquisition and core growth in home equity lines of credit, credit card, and residential mortgages.

• $0.4 billion, or 10%, increase in commercial loans, primarily due to the impact of the acquisition and core portfolio growth.

The increase in total average deposits from the year-ago period reflected:

• $6.2 billion, or 21%, increase due to the acquisition and core household growth.

The increase in noninterest income from the year-ago period reflected:

• $36 million, or 16%, increase in service charges on deposits accounts cards, primarily due to new customer acquisition.

• $35 million, or 29%, increase in cards and payment processing income, primarily due to higher debit card-related transaction volumes and an increase in the number of households.

• $12 million, or 51%, increase in mortgage banking income.

The increase in noninterest expense from the year-ago period reflected:

• $56 million, or 16%, increase in personnel costs, primarily due to the FirstMerit acquisition.

• $22 million, or 4%, increase in other noninterest expense, primarily reflecting an increase in allocated overhead expenses.

• $14 million, or 18%, increase in occupancy expense, primarily due to the FirstMerit acquisition.

2015 vs. 2014

Consumer and Business Banking reported net income of $236 million in 2015, compared with a net income of $172 million in 2014. The $64 million increase included a $33 million, or 43%, decrease in provision for credit losses, a $68 million, or 17%, increase noninterest income, and a $115 million, or 13%, increase in net interest income partially offset by a $35 million, or 37%, increase in provision for income taxes and a $117 million, or 12%, increase in noninterest expense.

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Commercial Banking
Table 37 - Key Performance Indicators for Commercial Banking
(dollar amounts in thousands unless otherwise noted)
	Year ended December 31,						Change from 2015
	2016			2015			Amount			Percent		2014
Net interest income	$	512,995		$	379,409		$	133,586		35	%	$	306,434
Provision for credit losses	98,816			49,534			49,282			99		31,521
Noninterest income	275,258			258,778			16,480			6		209,238
Noninterest expense	385,783			284,026			101,757			36		249,300
Provision for income taxes	106,279			106,619			(340		)	—		82,198
Net income	$	197,375		$	198,008		$	(633	)	—	%	$	152,653
Number of employees (average full-time equivalent)	1,307			1,208			99			8	%	1,026
Total average assets (in millions)	$	20,373		$	16,123		$	4,250		26		$	14,145
Total average loans/leases (in millions)	15,936			12,844			3,092			24		11,901
Total average deposits (in millions)	12,964			11,410			1,554			14		10,207
Net interest margin	2.95		%	2.77		%	0.18		%	6		2.53		%
NCOs	$	27,237		$	22,226		$	5,011		23		$	7,852
NCOs as a % of average loans and leases	0.17		%	0.17		%	—		%	—	%	0.07		%

2016 vs. 2015

Commercial Banking reported net income of $197 million in 2016. This was a decrease of $1 million, or less than one percent, compared to the year-ago period. The decrease in net income reflected a combination of factors described below.

The increase in net interest income from the year-ago period reflected:

• $3.1 billion, or 24%, increase in average loans/leases.

• $0.7 billion, or 41%, increase in average available-for-sale securities, primarily related to direct purchase municipal securities.

• $1.6 billion, or 14%, increase in average total deposits.

• 18 basis point increase in the net interest margin due to a 13 basis point increase in the mix and yield on earning assets, of which 5 basis point increase in the net interest margin attributed to the mix in deposits stemming from a growth of $1.0 billion, or 18%, in average non-interest bearing demand deposits.

The increase in the provision for credit losses from the year-ago period reflected:

• The migration of the acquired portfolio to the originated portfolio, which required a reserve build, portfolio growth, and a$5 million, or 23%, increase in NCOs.

The increase in total average assets from the year-ago period reflected:

• The third quarter 2016 acquisition of FirstMerit.

• $0.7 billion, or 19%, increase in the Equipment Finance loan and bond financing portfolio, which primarily reflected our focus on developing vertical strategies in Huntington Public Capital, business aircraft, rail industry, lender finance, and syndications, as well as the 2015 first quarter acquisition of Huntington Technology Finance.

• $0.4 billion, or 15%, increase in the Corporate Banking loan portfolio due to establishing relationships with targeted prospects within our footprint.

The increase in total average deposits from the year-ago period reflected:

• $1.6 billion, or 15%, increase in core deposits, which primarily reflected a $1.0 billion, or 18%, increase in noninterest-bearing demand deposits. Middle market accounts contributed $1.3 billion of the overall balance growth, while large corporate accounts declined $0.3 billion.

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The increase in noninterest income from the year-ago period reflected:

• $11 million, or 31%, increase in commitment and other loan related fees, such as syndication fees.

• $10 million, or 17%, increase in service charges on deposit accounts and other treasury management related revenue, primarily due to growth in commercial card revenue, merchant services revenue, and cash management services.

• $5 million, or 12%, increase in capital market fees, primarily due to growth in customer interest rate derivative contracts, foreign exchange, and commodities, partially offset by a decrease in underwriting fees.

Partially offset by:

• $3 million, or 7%, decrease in equipment and technology finance related fee income, primarily reflecting reduced gains on the sale of loans/leases and income on terminated leases.

• $3 million, or 5%, decrease in Insurance related fee income, primarily reflecting a decrease in property & casualty insurance, as well as an increase in fee sharing to other business segments.

• $2 million, or 15%, decrease in International fee income, primarily reflecting a decrease in bankers' acceptances.

• $1 million, or 6%, decrease in all other income, primarily reflecting a decrease in fee sharing from other business segments.

The increase in noninterest expense from the year-ago period reflected:

• $58 million, or 189%, increase in allocated overhead expense.

• $31 million, or 18%, increase in personnel expense, primarily reflecting the 2016 third quarter acquisition of FirstMerit. The increase also reflects additional cost from annual merit salary adjustments and incentives.

• $5 million, or 63%, increase in FDIC insurance premiums, primarily reflecting the 2016 third quarter acquisition of FirstMerit.

• $7 million, or 10%, increase in all other expense, primarily reflecting the 2016 third quarter acquisition of FirstMerit.

2015 vs. 2014

Commercial Banking reported net income of $198 million in 2015, compared with net income of $153 million in 2014. The $45 million increase included a $73 million, or 24%, increase in net interest income, a $50 million, or 24%, increase in noninterest income, and a $35 million, or 14%, increase in noninterest expense partially offset by $24 million, or 30%, increase in provision for income taxes and a $18 million, or 57%, increase in provision for credit losses.

Commercial Real Estate and Vehicle Finance
Table 38 - Commercial Real Estate and Vehicle Finance
(dollar amounts in thousands unless otherwise noted)
	Year ended December 31,						Change from 2015
	2016			2015			Amount			Percent		2014
Net interest income	$	468,969		$	381,231		$	87,738		23	%	$	379,363
Provision (reduction in allowance) for credit losses	26,922			4,890			22,032			451		(52,843		)
Noninterest income	40,582			29,254			11,328			39		26,628
Noninterest expense	170,276			152,010			18,266			12		156,715
Provision for income taxes	109,324			88,755			20,569			23		105,742
Net income	$	203,029		$	164,830		$	38,199		23	%	$	196,377
Number of employees (average full-time equivalent)	346			302			44			15	%	271
Total average assets (in millions)	$	20,753		$	16,894		$	3,859		23		$	14,591
Total average loans/leases (in millions)	19,386			15,812			3,574			23		14,224
Total average deposits (in millions)	1,719			1,496			223			15		1,204
Net interest margin	2.33		%	2.34		%	(0.01		)%	—		2.61		%
NCOs	$	9,460		$	(8,027	)	$	17,487		N.R.		$	2,100
NCOs as a % of average loans and leases	0.05		%	(0.05		)%	0.10		%	N.R.		0.01		%

N.R. - Not relevant.

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2016 vs. 2015

CREVF reported net income of $203 million in 2016. This was an increase of $38 million, or 23%, compared to the year-ago period. The increase in net income reflected a combination of factors described below.

The increase in net interest income from the year-ago period reflected:

• $1.8 billion, or 20%, increase in average automobile loans, primarily due to continued strong origination volume, which has exceeded $1.0 billion for each of the last 8 quarters. This increase also reflected $0.6 billion of indirect automobile loans acquired from FirstMerit and the $0.8 billion automobile securitization and sale completed in 2015 second quarter.

• $0.7 billion indirect recreational loans acquired from FirstMerit.

• $1.1 billion, or 16%, increase in commercial loans primarily due to an increase in automobile floor plan balances and commercial real estate loans acquired from FirstMerit.

Partially offset by:

• A 1 basis point decrease in the net interest margin as the impact of competitive pricing pressures was mostly offset by higher spreads on the acquired FirstMerit portfolios.

The increase in the provision for credit losses from the year-ago period reflected:

• $17 million increase in NCOs incurred with the Mezzanine portfolio.

The increase in noninterest income from the year-ago period reflected:

• $5 million, or 26%, increase in other income primarily related to fee sharing income from derivative product sales.

• $2 million, 46%, increase in gains on sales of loans related to 2016 fourth quarter balance sheet optimization strategies.

• $3 million increase in securities gains.

The increase in noninterest expense from the year-ago period reflected:

• $7 million, or 21%, increase in personnel costs due to a higher number of employees, resulting from higher production and business development activities as well as additional colleagues added from FirstMerit.

• $6 million, or 6%, increase in other noninterest expense, primarily due to an increase in allocated expenses.

• $5 million increase in allocated FDIC insurance expense.

2015 vs. 2014

CREVF reported net income of $165 million in 2015, compared with a net income of $196 million in 2014. The $31 million decrease included a $58 million, or 109%, increase in the provision for credit losses, $3 million, or 10%, increase in noninterest income partially offset by a $2 million, or less than one percent, increase in net interest income and a $17 million, or 16%, decrease in provision for income taxes.

80

Regional Banking and The Huntington Private Client Group
Table 39 - Key Performance Indicators for Regional Banking and The Huntington Private Client Group
(dollar amounts in thousands unless otherwise noted)
	Year ended December 31,						Change from 2015
	2016			2015			Amount			Percent		2014
Net interest income	$	177,431		$	139,188		$	38,243		27	%	$	101,839
Provision (reduction in allowance) for credit losses	(3,467		)	87			(3,554		)	N.R.		4,893
Noninterest income	120,687			114,814			5,873			5		173,550
Noninterest expense	196,194			195,667			527			—		236,634
Provision for income taxes	36,887			20,387			16,500			81		11,852
Net income	$	68,504		$	37,861		$	30,643		81	%	$	22,010
Number of employees (average full-time equivalent)	630			651			(21		)	(3	)%	1,022
Total average assets (in millions)	$	4,805		$	4,213		$	592		14		$	3,812
Total average loans/leases (in millions)	4,187			3,785			402			11		2,894
Total average deposits (in millions)	8,076			7,130			946			13		6,029
Net interest margin	2.26		%	1.97		%	0.29		%	15		1.75		%
NCOs	$	(2,153	)	$	4,808		$	(6,961	)	N.R.		$	8,143
NCOs as a % of average loans and leases	(0.05		)%	0.13		%	(0.18		)%	N.R.		0.28		%
Total assets under management (in billions)—eop	$	16.9		$	16.3		$	0.6		4		$	14.8
Total trust assets (in billions)—eop	94.7			84.1			10.6			13		81.5

N.R. - Not relevant.

eop—End of Period.

2016 vs. 2015

RBHPCG reported net income of $69 million in 2016. This was an increase of $31 million, or 81%, when compared to the year-ago period. The increase in net income reflected a combination of factors described below.

The increase in net interest income from the year-ago period reflected:

• $0.9 billion, or 13%, increase in average total deposits combined with a $0.4 billion, or 11% increase in average total loans primarily due to the FirstMerit acquisition. In addition, the deposit balance increase reflected strong growth in the new Private Client Account interest checking product as well as commercial deposit balances, while the loan balance increase reflected strong growth in both commercial loans and portfolio mortgage loans.

The decrease in the provision for credit losses reflected from the year-ago period reflected:

• $7 million decrease in NCOs incurred during the year.

The increase in noninterest income from the year-ago period reflected:

• $4 million, or 4%, increase in trust services, due to increased revenue from the FirstMerit acquisition, partially offset by the reduction in revenue resulting from the sale of HASI and HAA in the 2015 fourth quarter.

The increase in noninterest expense from the year-ago period reflected:

• $3 million, or 66%, increase in amortization of intangible assets, primarily due to the FirstMerit acquisition.

Partially offset by:

• $2 million, or 47%, decrease in professional services related from the 2015 fourth quarter sale of HASI and HAA.

2015 vs. 2014

RBHPCG reported net income of $38 million in 2015, compared with a net income of $22 million in 2014. The $16 million increase included a $59 million, or 34%, decrease in noninterest income, a $5 million decrease in the provision for credit losses, a $41 million, or 17% decrease in noninterest expense, partially offset by a $37 million, or 37%, increase in net interest income and a $9 million, or 72% increase in provision for income taxes.

81

Home Lending
Table 40 - Key Performance Indicators for Home Lending
(dollar amounts in thousands unless otherwise noted)
	Year ended December 31,						Change from 2015
	2016			2015			Amount			Percent		2014
Net interest income	$	58,354		$	50,404		$	7,950		16	%	$	58,015
Provision (reduction in allowance) for credit losses	(3,412		)	2,671			(6,083		)	(228	)	21,889
Noninterest income	90,358			87,021			3,337			4		69,899
Noninterest expense	124,683			144,848			(20,165		)	(14	)	136,374
Provision for income taxes	9,604			(3,533		)	13,137			(372	)	(10,622		)
Net income (loss)	$	17,837		$	(6,561	)	$	24,398		(372	)%	$	(19,727	)
Number of employees (average full-time equivalent)	1,071			952			119			13	%	971
Total average assets (in millions)	$	3,303		$	3,145		$	158		5		$	3,810
Total average loans/leases (in millions)	2,649			2,551			98			4		3,298
Total average deposits (in millions)	438			350			88			25		292
Net interest margin	1.87		%	1.71		%	0.16		%	9		1.61		%
NCOs	$	4,213		$	5,758		$	(1,545	)	(27	)	$	15,900
NCOs as a % of average loans and leases	0.16		%	0.23		%	(0.07		)%	(30	)	0.48		%
Mortgage banking origination volume (in millions)	$	5,822		$	4,705		$	1,117		24		$	3,558

2016 vs. 2015

Home Lending reported a net income of $18 million in 2016. This was an improvement of $24 million, when compared to the year-ago period. The increase in net income reflected a combination of factors described below.

The increase in net interest income from the year-ago period reflected:

• 16 basis point increase in the net interest margin, primarily due to an increase in loan spreads on consumer loans driven by lower funding costs and a $98 million increase in total loan balances.

The decrease in provision for credit losses from the year-ago period reflected:

• $2 million, or 27%, decrease in NCOs and continued improvement in credit performance during the year.

The increase in noninterest income from the year-ago period reflected:

• $2 million, or 2%, increase in mortgage banking income, primarily due to production revenue driven by higher origination volume and the impact of the net MSR hedge results, partially offset by higher fee sharing sent to other business segments.

The decrease in noninterest expense from the year-ago period reflected:

• $38 million, or 177%, decrease in other noninterest expense, primarily related to lower allocated expenses.

Partially offset by:

• $14 million, or 15%, increase in personnel costs due to incentive expense related to higher origination volume.

2015 vs. 2014

Home Lending reported a net loss of $7 million in 2015, compared to net loss of $20 million in 2014. The $13 million improvement included a $17 million, or 24%, increase in noninterest income and a $19 million, or 88%, decrease in reduction in allowance for credit losses partially offset by a $7 million increase in provision for income taxes, $8 million, or 13%, decrease in net interest income, and an $8 million, or 6%, increase in noninterest expense.

RESULTS FOR THE FOURTH QUARTER

Earnings Discussion

In the 2016 fourth quarter, we reported net income of $239 million, an increase of $61 million, or 34%, from the 2015 fourth quarter. Earnings per common share for the 2016 fourth quarter were $0.20, a decrease of $0.01 from the year-ago quarter.

82

Table 41 - Significant Items Influencing Earnings Performance Comparison
(dollar amounts in millions, except per share amounts)
Three Months Ended:	Amount			EPS (1)
December 31, 2016—Net income	$	239
Earnings per share, after-tax				$	0.20
Mergers and acquisitions	$	(96	)
Tax impact	33
Mergers and acquisitions, after-tax	$	(63	)	$	(0.06	)
Litigation reserves	$	42
Tax impact	(15		)
Litigation reserves, after-tax	$	27		$	0.02
	Amount			EPS (1)
December 31, 2015—Net income	$	178
Earnings per share, after-tax				$	0.21
Franchise repositioning related expense	$	(8	)
Tax impact	3
Franchise repositioning related expense, after-tax	$	(5	)	$	(0.01	)

(1) Based on average outstanding diluted common shares.

Net Interest Income / Average Balance Sheet

FTE net interest income for the 2016 fourth quarter increased$242 million, or 48%, from the 2015 fourth quarter. This reflected the benefit from the $26.5 billion, or 41%, increase in average earning assets partially coupled with a 16 basis point improvement in the FTE NIM to 3.25%. Average earning asset growth included a $16.6 billion, or 33%, increase in average loans and leases and a $7.9 billion, or 54%, increase in average securities. The NIM expansion reflected a 23 basis point increase related to the mix and yield of earning assets, partially offset by a 7 basis point increase in funding costs. FTE net interest income during the 2016 fourth quarter included $42 million, or approximately 18 basis points, of purchase accounting impact.

83

Table 42 - Average Earning Assets - 2016 Fourth Quarter vs. 2015 Fourth Quarter
(dollar amounts in thousands)
	Fourth Quarter				Change
	2016		2015		Amount		Percent
Loans/Leases
Commercial and industrial	$	27,727	$	20,186	$	7,541	37	%
Commercial real estate	7,218		5,266		1,952		37
Total commercial	34,945		25,452		9,493		37
Automobile	10,866		9,286		1,580		17
Home equity	10,101		8,463		1,638		19
Residential mortgage	7,690		6,079		1,611		27
RV and marine finance	1,844		—		1,844		—
Other consumer	959		547		412		75
Total consumer	31,460		24,375		7,085		29
Total loans/leases	66,405		49,827		16,578		33
Total securities	22,441		14,543		7,898		54
Loans held-for-sale and other earning assets	2,617		591		2,026		343
Total earning assets	$	91,463	$	64,961	$	26,502	41	%

Average earning assets for the 2016 fourth quarter increased$26.5 billion, or 41%, from the year-ago quarter. The increase was driven by:

• $7.9 billion, or 54%, increase in average securities, primarily reflecting the FirstMerit acquisition, as well as the reinvestment in cash flows and additional investment in LCR Level 1 qualifying securities. The 2016 fourth quarter average balance included $2.9 billion of direct purchase municipal instruments in our Commercial Banking segment, up from $2.0 billion in the year-ago quarter.

• $7.5 billion, or 37%, increase in average C&I loans and leases, primarily reflecting the impact of the FirstMerit acquisition, the $0.6 billion increase in automobile dealer floorplan loans, and the $0.4 billion increase in corporate banking.

• $2.0 billion, or 37%, increase in commercial real estate (CRE) loans, primarily reflecting the FirstMerit acquisition.

• $1.8 billion increase in average RV and marine finance loans, a new product offering for us as a result of the FirstMerit acquisition.

• $1.6 billion, or 17%, increase in average automobile loans, primarily reflecting the addition of the FirstMerit portfolio. The increase also reflects continued strength in new and used automobile originations, while maintaining our underwriting consistency and discipline, partially offset by the impact of the $1.5 billion auto loan securitization.

• $1.6 billion, or 19%, increase in average home equity loans and lines of credit, primarily reflecting the FirstMerit acquisition.

• $1.6 billion, or 27%, increase in average residential mortgage loans, reflecting increased demand for residential mortgage loans across our footprint and the addition of the FirstMerit portfolio.

84

Table 43 - Average Interest-Bearing Liabilities - 2016 Fourth Quarter vs. 2015 Fourth Quarter
(dollar amounts in millions)
	Fourth Quarter				Change
	2016		2015		Amount			Percent
Deposits
Demand deposits: noninterest-bearing	$	23,250	$	17,174	$	6,076		35	%
Demand deposits: interest-bearing	15,294		6,923		8,371			121
Total demand deposits	38,544		24,097		14,447			60
Money market deposits	18,618		19,843		(1,225		)	(6	)
Savings and other domestic deposits	12,272		5,215		7,057			135
Core certificates of deposit	2,636		2,430		206			9
Total core deposits	72,070		51,585		20,485			40
Other domestic deposits of $250,000 or more	391		426		(35		)	(8	)
Brokered deposits and negotiable CDs	4,273		2,929		1,344			46
Deposits in foreign offices	152		398		(246		)	(62	)
Total deposits	76,886		55,338		21,548			39
Short-term borrowings	2,628		524		2,104			402
Long-term debt	8,594		6,788		1,806			27
Total interest-bearing liabilities	$	64,858	$	45,476	$	19,382		43	%

Average total deposits for the 2016 fourth quarter increased $21.5 billion, or 39%, from the year-ago quarter, including a $20.5 billion, or 40%, increase in average total core deposits. The growth in average total core deposits more than fully funded the year-over-year increase in average total loans and leases. Average total interest-bearing liabilities increased $19.4 billion, or 43%, from the year-ago quarter. Including the impact of the FirstMerit acquisition, year-over-year changes in average total deposits and average total debt included:

• $14.4 billion, or 60%, increase in average total demand deposits, including a $6.1 billion, or 35%, increase in average noninterest-bearing demand deposits and an $8.4 billion, or 121%, increase in average interest-bearing demand deposits. The increase in average total demand deposits was comprised of a $9.8 billion, or 62%, increase in average commercial demand deposits and a $4.6 billion, or 55%, increase in average consumer demand deposits.

• $6.8 billion, or 158%, increase in average savings deposits, reflecting continued banker focus across all segments on obtaining our customers' full deposit relationship.

• $3.9 billion, or 53%, increase in average total debt, reflecting a $2.1 billion, or 402%, increase in average short-term borrowings and a $1.8 billion, or 27%, increase in average long-term debt. The increase in average long-term debt reflected the issuance of $2.0 billion of holding company-level senior debt during 2016.

• $1.3 billion, or 46%, increase in average brokered deposits and negotiable CDs, impacted by the FirstMerit acquisition.

Partially offset by:

• $1.2 billion, or 6%, decrease in average money market deposits. During the 2016 third quarter, changes to commercial accounts resulted in the reclassification of $2.8 billion of deposits from money market into interest bearing demand deposits. This decrease was partially offset by the impact of the FirstMerit acquisition.

Provision for Credit Losses

The provision for credit losses increased to $75 million in the 2016 fourth quarter compared to $36 million in the 2015 fourth quarter.

85

Noninterest Income

Table 44 - Noninterest Income - 2016 Fourth Quarter vs. 2015 Fourth Quarter
(dollar amounts in thousands)
	Fourth Quarter					Change
	2016			2015		Amount			Percent
Service charges on deposit accounts	$	91,577		$	72,854	$	18,723		26	%
Cards and payment processing income	49,113			37,594		11,519			31
Mortgage banking income	37,520			31,418		6,102			19
Trust services	34,016			25,272		8,744			35
Insurance income	16,486			15,528		958			6
Brokerage income	17,014			14,462		2,552			18
Capital markets fees	18,730			13,778		4,952			36
Bank owned life insurance income	17,067			13,441		3,626			27
Gain on sale of loans	24,987			10,122		14,865			147
Securities gains (losses)	(1,771		)	474		(2,245		)	N.R.
Other income	29,598			37,272		(7,674		)	(21	)
Total noninterest income	$	334,337		$	272,215	$	62,122		23	%

N.R. - Not relevant.

Noninterest income for the 2016 fourth quarter increased $62 million, or 23%, from the year-ago quarter. The year-over-year increase primarily reflected:

• $19 million, or 26%, increase in service charges on deposit accounts, reflecting the benefit of continued new customer acquisition. Of the increase, $12 million was attributable to consumer deposit accounts, while $7 million was attributable to commercial deposit accounts.

• $15 million, or 147%, increase in gain on sale of loans, reflecting a $6 million auto loan securitization gain and $5 million of gains on non-relationship C&I and CRE loan sales, both of which were related to the balance sheet optimization strategy completed in the 2016 fourth quarter.

• $12 million, or 31%, increase in cards and payment processing income, due to higher card-related income and underlying customer growth.

• $9 million, or 35%, increase in trust services, primarily related to the FirstMerit acquisition.

• $6 million, or 19%, increase in mortgage banking income, reflecting a $7 million increase from net mortgage servicing rights (MSR) hedging-related activities.

Partially offset by:

• $8 million, or 21%, decrease in other income, reflecting $8 million unfavorable impact related to ineffectiveness of derivatives used to hedge fixed-rate, long-term debt.

86

Noninterest Expense
Table 45 - Noninterest Expense - 2016 Fourth Quarter vs. 2015 Fourth Quarter
(dollar amounts in thousands)
	Fourth Quarter				Change
	2016		2015		Amount		Percent
Personnel costs	$	359,755	$	288,861	$	70,894	25	%
Outside data processing and other services	88,695		63,775		24,920		39
Equipment	59,666		31,711		27,955		88
Net occupancy	49,450		32,939		16,511		50
Professional services	23,165		13,010		10,154		78
Marketing	21,478		12,035		9,443		78
Deposit and other insurance expense	15,772		11,105		4,667		42
Amortization of intangibles	14,099		3,788		10,311		272
Other expense	49,417		41,542		7,875		19
Total noninterest expense	$	681,497	$	498,766	$	182,731	37	%
Number of employees (average full-time equivalent)	15,993		12,418		3,575		29	%

Impacts of Significant Items:	Fourth Quarter
(dollar amounts in thousands)	2016			2015
Personnel costs	$	(5,385	)	$	2,332
Outside data processing and other services	15,420			1,990
Equipment	20,000			4,587
Net occupancy	7,146			110
Professional services	9,141			1,153
Marketing	4,340			—
Other expense	2,742			318
Total noninterest expense adjustments	$	53,404		$	10,490

Adjusted Noninterest Expense (Non-GAAP):
(dollar amounts in thousands)	Fourth Quarter				Change
	2016		2015		Amount		Percent
Personnel costs	$	365,140	$	286,529	$	78,611	27	%
Outside data processing and other services	73,275		61,785		11,490		19
Equipment	39,666		27,124		12,542		46
Net occupancy	42,304		32,829		9,475		29
Professional services	14,024		11,857		2,167		18
Marketing	17,138		12,035		5,103		42
Deposit and other insurance expense	15,772		11,105		4,667		42
Amortization of intangibles	14,099		3,788		10,311		272
Other expense	46,675		41,224		5,451		13
Total adjusted noninterest expense (Non-GAAP)	$	628,093	$	488,276	$	139,817	29	%

Reported noninterest expense for the 2016 fourth quarter increased$183 million, or 37%, from the year-ago quarter. Including the impact of the FirstMerit acquisition, changes in reported noninterest expense primarily reflect:

• $71 million, or 25%, increase in personnel costs, reflecting an $84 million increase in salaries related to the May implementation of annual merit increases and a 29% increase in the number of average full-time equivalent employees, partially offset by a $13 million decrease in benefits expense related to an $18 million gain on the settlement of a portion of the FirstMerit pension plan liability during the 2016 fourth quarter.

87

• $8 million, or 19%, increase in other expense, primarily reflecting a $42 million reduction to litigation reserves, which was mostly offset by a $40 million contribution in the 2016 fourth quarter to achieve the philanthropic plans related to FirstMerit.

• $28 million, or 88%, increase in equipment expense, reflecting the impact of the FirstMerit acquisition.

• $25 million, or 39%, increase in outside data processing and other services expense, primarily related to ongoing technology investments and the impact of the FirstMerit acquisition.

• $17 million, or 50%, increase in net occupancy costs, reflecting the FirstMerit acquisition.

• $10 million, or 272%, increase in amortization of intangibles reflecting the FirstMerit acquisition.

• $10 million, or 78%, increase in professional services, primarily related to $9 million of acquisition-related Significant Items in the 2016 fourth quarter.

• $9 million, or 78%, increase in marketing, related to the FirstMerit acquisition.

Provision for Income Taxes

The provision for income taxes in the 2016 fourth quarter was $74 million and $56 million in the 2015 fourth quarter. The effective tax rates for the 2016 fourth quarter and 2015 fourth quarter were 23.6% and 23.8%, respectively. At December 31, 2016, we had a net federal deferred tax asset of $76 million and a net state deferred tax asset of $41 million.

Credit Quality

NCOs

Net charge-offs (NCOs) increased$22 million, or 99%, to $44 million. NCOs represented an annualized 0.26% of average loans and leases in the current quarter, unchanged from the prior quarter but up from 0.18% in the year-ago quarter. Commercial charge-offs continued to be positively impacted by recoveries in the CRE portfolio and broader continued successful workout strategies, while consumer charge-offs remained within our expected range.

NALs

Overall asset quality remains strong, with modest volatility. Overall consumer credit metrics, led by the Home Equity and Residential portfolios, continue to show an improving trend, while the Commercial portfolios continue to experience some quarter-to-quarter volatility based on the absolute low level of problem loans. The FirstMerit portfolio quality, composition, and geographic distribution was similar to the legacy Huntington portfolio. The only new loan classification is the RV/marine portfolio.

Nonaccrual loans and leases (NALs) of $423 million represented 0.63% of total loans and leases, down from 0.74% a year ago. The decrease in the NAL ratio reflected a 14% year-over-year increase in NALs, more than offset by the impact of the 33% year-over-year increase in total loans. Nonperforming assets (NPAs) of $481 million represented 0.72% of total loans and leases and OREO, down from 0.79% a year ago. The NAL ratio increased 2 basis points from the prior quarter, while the NPA ratio remained unchanged.

ACL

(This section should be read in conjunction with Note 4 of the Notes to Consolidated Financial Statements.)

The period-end allowance for credit losses (ACL) as a percentage of total loans and leases decreased to 1.10% from 1.33% a year ago, while the ACL as a percentage of period-end total NALs decreased to 174% from 180%. The decline in the coverage ratios is primarily a function of the purchase accounting impact associated with FirstMerit.

88

Table 46 - Selected Quarterly Financial Information (1)
(dollar amounts in thousands, except per share amounts)
	Three months ended
	December 31,			September 30,			June 30,			March 31,
	2016			2016			2016			2016
Interest income	$	814,858		$	694,346		$	565,658		$	557,251
Interest expense	79,877			68,956			59,777			54,185
Net interest income	734,981			625,390			505,881			503,066
Provision for credit losses	74,906			63,805			24,509			27,582
Net interest income after provision for credit losses	660,075			561,585			481,372			475,484
Total noninterest income	334,337			302,415			271,112			241,867
Total noninterest expense	681,497			712,247			523,661			491,080
Income before income taxes	312,915			151,753			228,823			226,271
Provision for income taxes	73,952			24,749			54,283			54,957
Net income	238,963			127,004			174,540			171,314
Dividends on preferred shares	18,865			18,537			19,874			7,998
Net income applicable to common shares	$	220,098		$	108,467		$	154,666		$	163,316
Common shares outstanding
Average—basic	1,085,253			938,578			798,167			795,755
Average—diluted(2)	1,104,358			952,081			810,371			808,349
Ending	1,085,688			1,084,783			799,154			796,689
Book value per common share	$	8.51		$	8.59		$	8.18		$	8.01
Tangible book value per common share(3)	6.43			6.48			7.29			7.12
Per common share
Net income—basic	$	0.20		$	0.12		$	0.19		$	0.21
Net income—diluted	0.20			0.11			0.19			0.20
Cash dividends declared	0.08			0.07			0.07			0.07
Common stock price, per share
High(4)	$	13.64		$	10.11		$	10.65		$	10.81
Low(4)	9.57			8.23			8.05			7.83
Close	13.22			9.86			8.94			9.54
Average closing price	11.63			9.52			9.83			9.22
Return on average total assets	0.95		%	0.58		%	0.96		%	0.96		%
Return on average common shareholders’ equity	9.4			5.4			9.6			10.4
Return on average tangible common shareholders’ equity(5)	12.9			7.0			11.0			11.9
Efficiency ratio(6)	61.6			75.0			66.1			64.6
Effective tax rate	23.6			16.3			23.7			24.3
Margin analysis-as a % of average earning assets(7)
Interest income(7)	3.60		%	3.52		%	3.41		%	3.44		%
Interest expense	0.35			0.34			0.35			0.33
Net interest margin(7)	3.25		%	3.18		%	3.06		%	3.11		%
Revenue—FTE
Net interest income	$	734,981		$	625,390		$	505,881		$	503,066
FTE adjustment	12,560			10,598			10,091			9,159
Net interest income(7)	747,541			635,988			515,972			512,225
Noninterest income	334,337			302,415			271,112			241,867
Total revenue(7)	$	1,081,878		$	938,403		$	787,084		$	754,092

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Table 47 - Selected Quarterly Capital Data (1)
	2016
Capital adequacy	December 31,			September 30,			June 30,			March 31,
Total risk-weighted assets(10)	$	78,263		$	80,513		$	60,721		$	59,798
Tier 1 leverage ratio (period end)(10)	8.70		%	9.89		%	9.55		%	9.29		%
Common equity tier 1 risk-based capital ratio(10)	9.56			9.09			9.80			9.73
Tier 1 risk-based capital ratio (period end)(10)	10.92			10.40			11.37			10.99
Total risk-based capital ratio (period end)(10)	13.05			12.56			13.49			13.17
Tangible common equity / tangible asset ratio(8)	7.16			7.14			7.96			7.89
Tangible equity / tangible asset ratio(9)	8.26			8.23			9.28			8.96
Tangible common equity / risk-weighted assets ratio(10)	8.92			8.74			9.60			9.49

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Table 48 - Selected Quarterly Financial Information (1)
(dollar amounts in thousands, except per share amounts)
	Three months ended
	December 31,			September 30,			June 30,			March 31,
	2015			2015			2015			2015
Interest income	$	544,153		$	538,477		$	529,795		$	502,096
Interest expense	47,242			43,022			39,109			34,411
Net interest income	496,911			495,455			490,686			467,685
Provision for credit losses	36,468			22,476			20,419			20,591
Net interest income after provision for credit losses	460,443			472,979			470,267			447,094
Total noninterest income	272,215			253,119			281,773			231,623
Total noninterest expense	498,766			526,508			491,777			458,857
Income before income taxes	233,892			199,590			260,263			219,860
Provision for income taxes	55,583			47,002			64,057			54,006
Net income	178,309			152,588			196,206			165,854
Dividends on preferred shares	7,972			7,968			7,968			7,965
Net income applicable to common shares	$	170,337		$	144,620		$	188,238		$	157,889
Common shares outstanding
Average—basic	796,095			800,883			806,891			809,778
Average—diluted(2)	810,143			814,326			820,238			823,809
Ending	794,929			796,659			803,066			808,528
Book value per share	$	7.81		$	7.78		$	7.61		$	7.51
Tangible book value per share(3)	6.91			6.88			6.71			6.62
Per common share
Net income—basic	$	0.21		$	0.18		$	0.23		$	0.19
Net income —diluted	0.21			0.18			0.23			0.19
Cash dividends declared	0.07			0.06			0.06			0.06
Common stock price, per share
High(4)	$	11.87		$	11.90		$	11.72		$	11.30
Low(4)	10.21			10.00			10.67			9.63
Close	11.06			10.60			11.31			11.05
Average closing price	11.18			11.16			11.19			10.56
Return on average total assets	1.00		%	0.87		%	1.16		%	1.02		%
Return on average common shareholders’ equity	10.8			9.3			12.3			10.6
Return on average tangible common shareholders’ equity(5)	12.4			10.7			14.4			12.2
Efficiency ratio(6)	63.7			69.1			61.7			63.5
Effective tax rate	23.8			23.5			24.6			24.6
Margin analysis-as a % of average earning assets(7)
Interest income(7)	3.37		%	3.42		%	3.45		%	3.38		%
Interest expense	0.28			0.26			0.25			0.23
Net interest margin(7)	3.09		%	3.16		%	3.20		%	3.15		%
Revenue—FTE
Net interest income	$	496,911		$	495,455		$	490,686		$	467,685
FTE adjustment	8,425			8,168			7,962			7,560
Net interest income(7)	505,336			503,623			498,648			475,245
Noninterest income	272,215			253,119			281,773			231,623
Total revenue(7)	$	777,551		$	756,742		$	780,421		$	706,868

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Table 49 - Selected Quarterly Capital Data (1)
	2015
Capital adequacy	December 31,			September 30,			June 30,			March 31,
Total risk-weighted assets(11)	$	58,420		$	57,839		$	57,850		$	57,840
Tier 1 leverage ratio(11)	8.79		%	8.85		%	8.98		%	9.04		%
Tier 1 risk-based capital ratio(11)	9.79			9.72			9.65			9.51
Total risk-based capital ratio(11)	10.53			10.49			10.41			10.22
Tier 1 common risk-based capital ratio(11)	12.64			12.70			12.62			12.48
Tangible common equity / tangible asset ratio(8)	7.81			7.89			7.91			7.95
Tangible equity / tangible asset ratio(9)	8.36			8.44			8.48			8.53
Tangible common equity / risk-weighted assets ratio(11)	9.41			9.48			9.32			9.25

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

(2) For all quarterly periods presented above, the impact of the convertible preferred stock issued in April of 2008 was excluded from the diluted share calculation because the result would have been higher than basic earnings per common share (anti-dilutive) for the periods.

(3) Deferred tax liability related to other intangible assets is calculated assuming a 35% tax rate.

(4) High and low stock prices are intra-day quotes obtained from Bloomberg.

(5) Net income applicable to common shares 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.

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

(7) Presented on a FTE basis assuming a 35% tax rate.

(8) Tangible common equity (total common equity less goodwill and other intangible assets) divided by tangible assets (total assets less goodwill and other intangible assets). Other intangible assets are net of deferred tax, and calculated assuming a 35% tax rate.

(9) Tangible equity (total equity less goodwill and other intangible assets) divided by tangible assets (total assets less goodwill and other intangible assets). Other intangible assets are net of deferred tax, and calculated assuming a 35% tax rate.

(10) On January 1, 2015, we became subject to the Basel III capital requirements and the standardized approach for calculating risk-weighted assets in accordance with subpart D of the final capital rule.

(11) Ratios are calculated on the Basel I basis.

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

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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 that may affect our future results.

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.

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-K 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.

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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 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-K in their entirety, and not to rely on any single financial measure.

Risk Factors

More information on risk is set forth under the heading Risk Factors included in Item 1A and incorporated by reference into this MD&A. Additional information regarding risk factors can also be found in the Risk Management and Capital discussion, as well as the Regulatory Matters section included in Item 1 and incorporated by reference into the MD&A.

Critical Accounting Policies and Use of Significant Estimates

Our Consolidated Financial Statements are prepared in accordance with GAAP. The preparation of financial statements in conformity with GAAP requires us to establish accounting policies and make estimates that affect amounts reported in our Consolidated Financial Statements. Note 1 of the Notes to Consolidated Financial Statements, which is incorporated by reference into this MD&A, describes the significant accounting policies we use in our Consolidated Financial Statements.

An accounting estimate requires assumptions and judgments about uncertain matters that could have a material effect on the Consolidated Financial Statements. Estimates are made under facts and circumstances at a point in time, and changes in those facts and circumstances could produce results substantially different from those estimates. The most significant accounting policies and estimates and their related application are discussed below.

Allowance for Credit Losses

Our ACL of $0.7 billion at December 31, 2016, represents our estimate of probable credit losses inherent in our loan and lease portfolio and our unfunded loan commitments and letters of credit. We regularly review our ACL for appropriateness by performing on-going evaluations of the loan and lease portfolio. In doing so, we consider factors such as the differing economic risk 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. We also evaluate 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. There is no certainty that our ACL will be appropriate over time to cover losses in the portfolio because of unanticipated adverse changes in the economy, market conditions, or events adversely affecting specific customers, industries, or markets. If the credit quality of our customer base materially deteriorates, the risk profile of a market, industry, or group of customers changes materially, or if the ACL is not appropriate, our net income and capital could be materially adversely affected which, in turn, could have a material adverse effect on our financial condition and results of operations.

Valuation of Financial Instruments

Assets and liabilities carried at fair value inherently result in a higher degree of financial statement volatility. Assets measured at fair value include certain loans held for sale, loans held for investment, available-for-sale and trading securities, certain securitized automobile loans, MSRs, derivatives, and certain short-term borrowings. At December 31, 2016, approximately $15.8 billion of our assets and $0.1 billion of our liabilities were recorded at fair value on a recurring basis. In addition to the above mentioned on-going fair value measurements, fair value is also used for recording business combinations and measuring other non-recurring financial assets and liabilities.

At the end of each quarter, we assess the valuation hierarchy for each asset or liability measured at fair value. As necessary, assets or liabilities may be transferred within fair value hierarchy levels due to changes in availability of observable market inputs to measure fair value at the measurement date.

Where available, we use quoted market prices to determine fair value. If quoted market prices are not available, fair value is determined, using either internally developed or independent third-party valuation models, based on inputs that are either directly observable or derived from market data. These inputs include, but are not limited to, interest rate yield curves, option volatilities, or option adjusted spreads. Where neither quoted market prices nor observable market data are available, fair value is determined using valuation models that feature one or more significant unobservable inputs based on management’s expectation that market participants

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would use in determining the fair value of the asset or liability. The determination of appropriate unobservable inputs requires exercise of significant judgment. A significant portion of our assets and liabilities that are reported at fair value are measured based on quoted market prices or observable market/ independent inputs.

The following is a description of the significant estimates used in the valuation of financial assets and liabilities for which quoted market prices and observable market parameters are not available.

Municipal and asset-backed securities

The municipal securities portion that is classified as Level 3 uses significant estimates to determine the fair value of these securities which results in greater subjectivity. The fair value is determined by utilizing third-party valuation services. The third-party service provider reviews credit worthiness, prevailing market rates, analysis of similar securities, and projected cash flows. The third-party service provider also incorporates industry and general economic conditions into their analysis. Huntington evaluates the analysis provided for reasonableness.

Our CDO preferred securities portfolios are measured at fair value using a valuation methodology involving use of significant unobservable inputs and are thus, classified as Level 3 in the fair value hierarchy. The private label CMO securities portfolio is subjected to a monthly review of the projected cash flows, while the cash flows of our CDO preferred securities portfolio is reviewed quarterly. These reviews are supported with analysis from independent third parties, and are used as a basis for impairment analysis.

CDO preferred securities are CDOs 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. A full cash flow analysis is used to estimate fair values and assess impairment for each security within this portfolio. We engage a third-party pricing specialist with direct industry experience in pooled-trust-preferred securities valuations to provide assistance in estimating the fair value and expected cash flows for each security in this portfolio. The PD of each issuer and the market discount rate are the most significant inputs in determining fair value. Management evaluates the PD assumptions provided by the third-party pricing specialist by comparing the current PD to the assumptions used the previous quarter, actual defaults and deferrals in the current period, and trend data on certain financial ratios of the issuers. Huntington also evaluates the assumptions related to discount rates. Relying on cash flows is necessary because there was a lack of observable transactions in the market and many of the original sponsors or dealers for these securities are no longer able to provide a fair value that is compliant with ASC 820.

Derivatives used for hedging purposes

Derivatives designated as qualified hedges are tested for hedge effectiveness on a quarterly basis. Assessments are made at the inception of the hedge and on a recurring basis to determine whether the derivative used in the hedging transaction has been and is expected to continue to be highly effective in offsetting changes in fair values or cash flows of the hedged item. A statistical regression analysis is performed to measure the effectiveness.

If, based on the assessment, a derivative is not expected to be a highly effective hedge or it has ceased to be a highly effective hedge, hedge accounting is discontinued as of the quarter the hedge is not highly effective. As the statistical regression analysis requires the use of estimates regarding the amount and timing of future cash flows which are sensitive to significant changes in future periods based on changes in market rates; we consider this a critical accounting estimate.

Loans held for sale

Huntington has elected to apply the fair value option to certain residential mortgage loans that are classified as held for sale at origination. The fair value of such loans is estimated based on the inputs that include prices of mortgage backed securities adjusted for other variables such as, interest rates, expected credit defaults and market discount rates. The adjusted value reflects the price we expect to receive from the sale of such loans.

Certain consumer and commercial loans are classified as held for sale and are accounted for at the lower of amortized cost or fair value. The determination of fair value for these consumer loans is based on observable prices for similar products or discounted expected cash flows, which takes into consideration factors such as future interest rates, prepayment speeds, default and loss curves, and market discount rates.

Mortgage Servicing Rights

Retained rights to service mortgage loans are recognized as a separate and distinct asset at the time the loans are sold. Mortgage servicing rights (“MSRs”) are initially recorded at fair value at the time the related loans are sold and subsequently re-measured at each reporting date under either the fair value or amortization method. The election of the fair value or amortization method is made at the time each servicing asset is established. All newly created MSRs since 2009 are recorded using the amortization method. Any increase or decrease in fair value of MSRs accounted for under the fair value method, as well as any amortization and/or impairment of MSRs recorded under the amortization method, is reflected in earnings in the period that the changes occur. MSRs are subject to

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interest rate risk in that their fair value will fluctuate as a result of changes in the interest rate environment. Fair value is determined based upon the application of an income approach valuation model. We use an independent third-party valuation model, which incorporates assumptions in estimating future cash flows. These assumptions include prepayment speeds, payoffs, and changes in valuation inputs and assumptions. The reasonableness of these pricing models is validated on a minimum of a quarterly basis by at least one independent external service broker valuation. Because the fair values of MSRs are significantly impacted by the use of estimates, the use of different assumptions can result in different estimated fair values of those MSRs.

Contingent Liabilities

We are a party to various claims, litigation, and legal proceedings resulting from ordinary business activities relating to our current and/or former operations. We estimate and provide for potential losses that may arise out of litigation and regulatory proceedings to the extent that such losses are probable and can be reasonably estimated. Significant judgment is required in making these estimates and our final liabilities may ultimately be more or less than the current estimate. Our total estimated liability in respect of litigation and regulatory proceedings is determined on a case-by-case basis and represents an estimate of probable losses after considering, among other factors, the progress of each case or proceeding, our experience and the experience of others in similar cases or proceedings, and the opinions and views of legal counsel. Litigation exposure represents a key area of judgment and is subject to uncertainty and certain factors outside of our control.

Income Taxes

The calculation of our provision for income taxes is complex and requires the use of estimates and judgments. We have two accruals for income taxes: (1) our income tax payable represents the estimated net amount currently due to the federal, state, and local taxing jurisdictions, net of any reserve for potential audit issues and any tax refunds and the net receivable balance is reported as a component of accrued income and other assets in our consolidated balance sheet; (2) our deferred federal and state income tax and related valuation accounts, reported as a component of accrued income and other assets, represents the estimated impact of temporary differences between how we recognize our assets and liabilities under GAAP, and how such assets and liabilities are recognized under federal and state tax law.

In the ordinary course of business, we operate in various taxing jurisdictions and are subject to income and non-income taxes. The effective tax rate is based in part on our interpretation of the relevant current tax laws. We believe the aggregate liabilities related to taxes are appropriately reflected in the consolidated financial statements. We review the appropriate tax treatment of all transactions taking into consideration statutory, judicial, and regulatory guidance in the context of our tax positions. In addition, we rely on various tax opinions, recent tax audits, and historical experience.

From time-to-time, we engage in business transactions that may affect our tax liabilities. Where appropriate, we obtain opinions of outside experts and assess the relative merits and risks of the appropriate tax treatment of business transactions taking into account statutory, judicial, and regulatory guidance in the context of the tax position. However, changes to our estimates of accrued taxes can occur due to changes in tax rates, implementation of new business strategies, resolution of issues with taxing authorities regarding previously taken tax positions, and newly enacted statutory, judicial, and regulatory guidance. Such changes could affect the amount of our accrued taxes and could be material to our financial position and/or results of operations. (See Note 17 of the Notes to Consolidated Financial Statements.)

Deferred Tax Assets

At December 31, 2016, we had a net federal deferred tax asset of $76 million and a net state deferred tax asset of $41 million. A valuation allowance is provided when it is more-likely-than-not some portion of the deferred tax asset will not be realized. All available evidence, both positive and negative, was considered to determine whether, based on the weight of that evidence, impairment should be recognized. Our forecast process includes judgmental and quantitative elements that may be subject to significant change. If our forecast of taxable income within the carryforward periods available under applicable law is not sufficient to cover the amount of net deferred tax assets, such assets may be impaired. Based on our analysis of both positive and negative evidence and our ability to offset the net deferred tax assets against our forecasted future taxable income, there was no impairment of the net deferred tax assets at December 31, 2016, other than a valuation allowance relating to state net operating loss carryovers.

Goodwill and Intangible Assets

The acquisition method of accounting requires that acquired assets and liabilities are recorded at their fair values as of the date of acquisition. This often involves estimates based on third party valuations or internal valuations based on discounted cash flow analyses or other valuation techniques, all of which are inherently subjective. Acquisitions typically result in goodwill, the amount by which the cost of net assets acquired in a business combination exceeds their fair value, which is subject to impairment testing at least annually. The amortization of identified intangible assets recognized in a business combination is based upon the estimated economic benefits to be received over their economic life, which is also subjective. Customer attrition rates that are based on historical

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experience are used to determine the estimated economic life of certain intangibles assets, including but not limited to, customer deposit intangibles. Refer to Note 8 of the Notes to Consolidated Financial Statements for further information regarding these items.

Recent Accounting Pronouncements and Developments

Note 2 to Consolidated Financial Statements discusses new accounting pronouncements adopted during 2016 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 Consolidated Financial Statements.

Item 7A: Quantitative and Qualitative Disclosures About Market Risk

Information required by this item is set forth under the heading of “Market Risk” in Item 7 (MD&A), which is incorporated by reference into this item.

Item 8: Financial Statements and Supplementary Data

Information required by this item is set forth in the Reports of Independent Registered Public Accounting Firm, Consolidated Financial Statements and Notes, and Selected Annual Income Statements.

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REPORT OF MANAGEMENT'S EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

The Management of Huntington Bancshares Incorporated (Huntington or the Company) is responsible for the financial information and representations contained in the Consolidated Financial Statements and other sections of this report. The Consolidated Financial Statements have been prepared in conformity with accounting principles generally accepted in the United States. In all material respects, they reflect the substance of transactions that should be included based on informed judgments, estimates, and currently available information. Management maintains a system of internal accounting controls, which includes the careful selection and training of qualified personnel, appropriate segregation of responsibilities, communication of written policies and procedures, and a broad program of internal audits. The costs of the controls are balanced against the expected benefits. During 2016, the audit committee of the board of directors met regularly with Management, Huntington’s internal auditors, and the independent registered public accounting firm, PricewaterhouseCoopers LLP, to review the scope of the audits and to discuss the evaluation of internal accounting controls and financial reporting matters. The independent registered public accounting firm and the internal auditors have free access to, and meet confidentially with, the audit committee to discuss appropriate matters. Also, Huntington maintains a disclosure review committee. This committee’s purpose is to design and maintain disclosure controls and procedures to ensure that material information relating to the financial and operating condition of Huntington is properly reported to its chief executive officer, chief financial officer, internal auditors, and the audit committee of the board of directors in connection with the preparation and filing of periodic reports and the certification of those reports by the chief executive officer and the chief financial officer.

REPORT OF MANAGEMENT’S ASSESSMENT OF INTERNAL CONTROL OVER FINANCIAL REPORTING

Management is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in Rules 13a-15(f) and 15d-15(f) of the Securities Exchange Act of 1934, as amended. Huntington’s Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2016. In making this assessment, Management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework (2013). Based on that assessment, Management concluded that, as of December 31, 2016, the Company’s internal control over financial reporting is effective based on those criteria. The Company’s internal control over financial reporting as of December 31, 2016 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report appearing on the next page.

Stephen D. Steinour – Chairman, President, and Chief Executive Officer

Howell D. McCullough III – Senior Executive Vice President and Chief Financial Officer

February 22, 2017

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of

Huntington Bancshares Incorporated

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, comprehensive income, changes in shareholders’ equity and cash flows present fairly, in all material respects, the financial position of Huntington Bancshares Incorporated and its subsidiaries at December 31, 2016 and 2015, and the results of their operations and their cash flows for each of the two years in the period ended December 31, 2016 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report of Management’s Assessment of Internal Control over Financial Reporting. Our responsibility is to express opinions on these financial statements and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed 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. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Columbus, Ohio

February 22, 2017

99

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of

Huntington Bancshares Incorporated

Columbus, Ohio

We have audited the accompanying consolidated statements of income, comprehensive income, changes in shareholders’ equity, and cash flows for the year ended December 31, 2014 of Huntington Bancshares Incorporated and subsidiaries (the “Company”). These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, such consolidated financial statements of Huntington Bancshares Incorporated and subsidiaries present fairly, in all material respects, the results of their operations and their cash flows for the year ended December 31, 2014, in conformity with accounting principles generally accepted in the United States of America.

Columbus, Ohio

February 13, 2015

100

Huntington Bancshares Incorporated

Consolidated Balance Sheets

	December 31,
(dollar amounts in thousands, except per share amounts)	2016			2015
Assets
Cash and due from banks	$	1,384,770		$	847,156
Interest-bearing deposits in banks	58,267			51,838
Trading account securities	133,295			36,997
Loans held for sale	512,951			474,621
(includes $438,224 and $337,577 respectively, measured at fair value)(1)
Available-for-sale and other securities	15,562,837			8,775,441
Held-to-maturity securities	7,806,939			6,159,590
Loans and leases (includes $82,319 and $34,637 respectively, measured at fair value)(1)
Commercial and industrial loans and leases	28,058,712			20,559,834
Commercial real estate loans	7,300,901			5,268,651
Automobile loans	10,968,782			9,480,678
Home equity loans	10,105,774			8,470,482
Residential mortgage loans	7,724,961			5,998,400
RV and marine finance loans	1,846,447			—
Other consumer loans	956,419			563,054
Loans and leases	66,961,996			50,341,099
Allowance for loan and lease losses	(638,413		)	(597,843		)
Net loans and leases	66,323,583			49,743,256
Bank owned life insurance	2,432,086			1,757,668
Premises and equipment	815,508			620,540
Goodwill	1,992,849			676,869
Other intangible assets	402,458			54,978
Servicing rights	225,578			189,237
Accrued income and other assets	2,062,976			1,630,110
Total assets	$	99,714,097		$	71,018,301
Liabilities and shareholders’ equity
Liabilities
Deposits in domestic offices
Demand deposits—noninterest-bearing	$	22,835,798		$	16,479,984
Interest-bearing	52,771,919			38,547,587
Deposits in foreign offices	—			267,408
Deposits	75,607,717			55,294,979
Short-term borrowings	3,692,654			615,279
Long-term debt	8,309,159			7,041,364
Accrued expenses and other liabilities	1,796,421			1,472,073
Total liabilities	89,405,951			64,423,695
Commitments and contingencies (Note 21)
Shareholders’ equity
Preferred stock	1,071,227			386,291
Common stock	10,886			7,970
Capital surplus	9,881,277			7,038,502
Less treasury shares, at cost	(27,384		)	(17,932		)
Accumulated other comprehensive loss	(401,016		)	(226,158		)
Retained (deficit) earnings	(226,844		)	(594,067		)
Total shareholders’ equity	10,308,146			6,594,606
Total liabilities and shareholders’ equity	$	99,714,097		$	71,018,301
Common shares authorized (par value of $0.01)	1,500,000,000			1,500,000,000
Common shares issued	1,088,641,251			796,969,694
Common shares outstanding	1,085,688,538			794,928,886
Treasury shares outstanding	2,952,713			2,040,808
Preferred stock, authorized shares	6,617,808			6,617,808
Preferred shares issued	2,702,571			1,967,071
Preferred shares outstanding	1,098,006			398,006

(1) Amounts represent loans for which Huntington has elected the fair value option. See Note 18.

See Notes to Consolidated Financial Statements

101

Huntington Bancshares Incorporated

Consolidated Statements of Income

	Year Ended December 31,
(dollar amounts in thousands, except per share amounts)	2016			2015			2014
Interest and fee income:
Loans and leases	$	2,178,044		$	1,759,525		$	1,674,563
Available-for-sale and other securities
Taxable	221,782			202,104			171,080
Tax-exempt	58,853			42,014			28,965
Held-to-maturity securities	138,312			86,614			88,724
Other	35,122			24,264			13,130
Total interest income	2,632,113			2,114,521			1,976,462
Interest expense
Deposits	102,005			82,175			86,453
Short-term borrowings	5,140			1,584			2,940
Federal Home Loan Bank advances	274			586			1,011
Subordinated notes and other long-term debt	155,376			79,439			48,917
Total interest expense	262,795			163,784			139,321
Net interest income	2,369,318			1,950,737			1,837,141
Provision for credit losses	190,802			99,954			80,989
Net interest income after provision for credit losses	2,178,516			1,850,783			1,756,152
Service charges on deposit accounts	324,299			280,349			273,741
Cards and payment processing income	169,064			142,715			105,401
Mortgage banking income	128,257			111,853			84,887
Trust services	108,274			105,833			115,972
Insurance income	64,523			65,264			65,473
Brokerage income	61,834			60,205			68,277
Capital markets fees	59,527			53,616			43,731
Bank owned life insurance income	57,567			52,400			57,048
Gain on sale of loans	47,153			33,037			21,091
Net gains on sales of securities	2,035			3,184			17,554
Impairment losses recognized in earnings on available-for-sale securities (a)	(2,119		)	(2,440		)	—
Other income	129,317			132,714			126,004
Total noninterest income	1,149,731			1,038,730			979,179
Personnel costs	1,349,124			1,122,182			1,048,775
Outside data processing and other services	304,743			231,353			212,586
Equipment	164,839			124,957			119,663
Net occupancy	153,090			121,881			128,076
Professional services	105,266			50,291			59,555
Marketing	62,957			52,213			50,560
Deposit and other insurance expense	54,107			44,609			49,044
Amortization of intangibles	30,456			27,867			39,277
Other expense	183,903			200,555			174,810
Total noninterest expense	2,408,485			1,975,908			1,882,346
Income before income taxes	919,762			913,605			852,985
Provision for income taxes	207,941			220,648			220,593
Net income	711,821			692,957			632,392
Dividends on preferred shares	65,274			31,873			31,854
Net income applicable to common shares	$	646,547		$	661,084		$	600,538
Average common shares—basic	904,438			803,412			819,917

102

Average common shares—diluted	918,790		817,129		833,081
Per common share:
Net income—basic	$	0.72	$	0.82	$	0.73
Net income—diluted	0.70		0.81		0.72
Cash dividends declared	0.29		0.25		0.21

(a) The following OTTI losses are included in securities losses for the periods presented:

Total OTTI losses	$	(5,851	)	$	(3,144	)	$	—
Noncredit-related portion of loss recognized in OCI	3,732			704			—
Net impairment credit losses recognized in earnings	$	(2,119	)	$	(2,440	)	$	—

See Notes to Consolidated Financial Statements

103

Huntington Bancshares Incorporated

Consolidated Statements of Comprehensive Income

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Net income	$	711,821		$	692,957		$	632,392
Other comprehensive income, net of tax:
Unrealized gains (losses) on available-for-sale and other securities:
Non-credit-related impairment recoveries on debt securities not expected to be sold	585			12,673			8,780
Unrealized net gains (losses) on available-for-sale and other securities arising during the period, net of reclassification for net realized gains and losses	(201,599		)	(19,757		)	45,783
Total unrealized gains (losses) on available-for-sale securities	(201,014		)	(7,084		)	54,563
Unrealized gains on cash flow hedging derivatives, net of reclassifications to income	1,314			8,285			6,611
Change in accumulated unrealized gains (losses) for pension and other post-retirement obligations	24,842			(5,067		)	(69,457		)
Other comprehensive loss, net of tax	(174,858		)	(3,866		)	(8,283		)
Comprehensive income	$	536,963		$	689,091		$	624,109

See Notes to Consolidated Financial Statements

104

Huntington Bancshares Incorporated

Consolidated Statements of Changes in Shareholders’ Equity

													Accumulated
													Other			Retained
(dollar amounts in thousands, except per share amounts)	Preferred Stock		Common Stock			Capital		Treasury Stock					Comprehensive			Earnings
	Amount		Shares	Amount		Surplus		Shares		Amount			Loss			(Deficit)			Total
Year Ended December 31, 2016
Balance, beginning of year	$	386,291	796,970	$	7,970	$	7,038,502	(2,041	)	$	(17,932	)	$	(226,158	)	$	(594,067	)	$	6,594,606
Net income																711,821			711,821
Other comprehensive income (loss)													(174,858		)				(174,858		)
FirstMerit Acquisition:
Issuance of common stock			285,425	2,854		2,763,919													2,766,773
Issuance of Series C preferred stock	100,000					4,320													104,320
Net proceeds from issuance of Series D preferred stock	584,936																		584,936
Cash dividends declared:
Common ($0.29 per share)																(274,780		)	(274,780		)
Preferred Series A ($85.00 per share)																(30,813		)	(30,813		)
Preferred Series B ($34.03 per share)																(1,208		)	(1,208		)
Preferred Series C ($26.28 per share)																(2,628		)	(2,628		)
Preferred Series D ($51.04 per share)																(30,625		)	(30,625		)
Recognition of the fair value of share-based compensation						65,608													65,608
Other share-based compensation activity			5,924	59		5,483										(4,554		)	988
Other			322	3		3,445		(912	)	(9,452		)				10			(5,994		)
Balance, end of year	$	1,071,227	1,088,641	$	10,886	$	9,881,277	(2,953	)	$	(27,384	)	$	(401,016	)	$	(226,844	)	$	10,308,146

See Notes to Consolidated Financial Statements

105

Huntington Bancshares Incorporated

Consolidated Statements of Changes in Shareholders’ Equity

																	Accumulated
																	Other			Retained
(dollar amounts in thousands, except per share amounts)	Preferred Stock			Common Stock					Capital			Treasury Stock					Comprehensive			Earnings
	Amount			Shares		Amount			Surplus			Shares		Amount			Loss			(Deficit)			Total
Year Ended December 31, 2015
Balance, beginning of year	$	386,292		813,136		$	8,131		$	7,221,745		(1,682	)	$	(13,382	)	$	(222,292	)	$	(1,052,324	)	$	6,328,170
Net income																				692,957			692,957
Other comprehensive income (loss)																	(3,866		)				(3,866		)
Repurchase of common stock				(23,036	)	(230		)	(251,614		)												(251,844		)
Cash dividends declared:
Common ($0.25 per share)																				(200,197		)	(200,197		)
Preferred Series A ($85.00 per share)																				(30,813		)	(30,813		)
Preferred Series B ($29.84 per share)																				(1,059		)	(1,059		)
Preferred share conversion	(1		)						1														—
Recognition of the fair value of share-based compensation									51,415														51,415
Other share-based compensation activity				6,784		68			16,068											(2,644		)	13,492
Other				86		1			887			(359	)	(4,550		)				13			(3,649		)
Balance, end of year	$	386,291		796,970		$	7,970		$	7,038,502		(2,041	)	$	(17,932	)	$	(226,158	)	$	(594,067	)	$	6,594,606

See Notes to Consolidated Financial Statements

106

Huntington Bancshares Incorporated

Consolidated Statements of Changes in Shareholders’ Equity

																Accumulated
																Other			Retained
(dollar amounts in thousands, except per share amounts)	Preferred Stock		Common Stock					Capital			Treasury Stock					Comprehensive			Earnings
	Amount		Shares		Amount			Surplus			Shares		Amount			Loss			(Deficit)			Total
Year Ended December 31, 2014
Balance, beginning of year	$	386,292	832,217		$	8,322		$	7,398,515		(1,331	)	$	(9,643	)	$	(214,009	)	$	(1,479,324	)	$	6,090,153
Net income																			632,392			632,392
Other comprehensive income (loss)																(8,283		)				(8,283		)
Repurchase of common stock			(35,709	)	(357		)	(334,072		)												(334,429		)
Cash dividends declared:
Common ($0.21 per share)																			(171,692		)	(171,692		)
Preferred Series A ($85.00 per share)																			(30,813		)	(30,813		)
Preferred Series B ($29.33 per share)																			(1,041		)	(1,041		)
Shares issued pursuant to acquisition			8,694		87			91,577														91,664
Recognition of the fair value of share-based compensation								43,666														43,666
Other share-based compensation activity			6,752		68			17,219											(1,774		)	15,513
Other			1,182		11			4,840			(351	)	(3,739		)				(72		)	1,040
Balance, end of year	$	386,292	813,136		$	8,131		$	7,221,745		(1,682	)	$	(13,382	)	$	(222,292	)	$	(1,052,324	)	$	6,328,170

See Notes to Consolidated Financial Statements

107

Huntington Bancshares Incorporated

Consolidated Statements of Cash Flows

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Operating activities
Net income	$	711,821		$	692,957		$	632,392
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Impairment of goodwill	—			—			3,000
Provision for credit losses	190,802			99,954			80,989
Depreciation and amortization	379,772			341,281			332,832
Share-based compensation expense	65,608			51,415			43,666
Net gains on sales of securities	(2,035		)	(3,184		)	(17,554		)
Impairment losses recognized in earnings on available-for-sale securities	2,119			2,440			—
Net Change in:
Trading account securities	(96,298		)	5,194			(6,618		)
Loans held for sale	(123,047		)	53,765			(58,803		)
Accrued income and other assets	(95,758		)	(233,624		)	(438,366		)
Deferred income taxes	164,747			68,776			35,174
Accrued expense and other liabilities	4,001			(34,846		)	282,074
Other, net	13,570			(10,766		)	—
Net cash provided by (used for) operating activities	1,215,302			1,033,362			888,786
Investing activities
Decrease (increase) in interest-bearing deposits in banks	26,067			12,721			(7,516		)
Net cash (paid) received in acquisitions	(133,218		)	(457,836		)	691,637
Proceeds from:
Maturities and calls of available-for-sale securities	2,113,383			1,907,669			1,480,505
Maturities of held-to-maturity securities	1,212,179			594,905			452,785
Sales of available-for-sale securities	6,154,326			163,224			1,152,907
Purchases of available-for-sale securities	(10,887,582		)	(4,506,764		)	(4,553,857		)
Purchases of held-to-maturity securities	—			(379,351		)	—
Net proceeds from sales of loans	2,981,184			1,304,309			353,811
Net loan and lease activity, excluding sales and purchases	(3,950,901		)	(3,186,775		)	(4,232,350		)
Proceeds from sale of operating lease assets	—			2,227			17,591
Purchases of premises and equipment	(120,438		)	(93,097		)	(58,862		)
Proceeds from sales of other real estate	50,299			36,038			38,479
Purchases of loans and leases	(410,625		)	(333,726		)	(345,039		)
Net cash paid for branch divestiture	(479,571		)	—			—
Purchases of customer lists	—			—			(946		)
Other, net	(456		)	7,802			6,074
Net cash provided by (used for) investing activities	(3,445,353		)	(4,928,654		)	(5,004,781		)
Financing activities
Increase (decrease) in deposits	(292,259		)	3,644,492			2,923,928
Increase (decrease) in short-term borrowings	1,899,561			(1,818,947		)	118,698
Sale of deposits	—			(47,521		)	—
Proceeds from issuance of long-term debt	2,127,750			3,232,227			2,000,000
Maturity/redemption of long-term debt	(1,274,838		)	(1,036,717		)	(198,922		)
Dividends paid on preferred stock	(54,380		)	(31,872		)	(31,854		)
Dividends paid on common stock	(245,208		)	(192,518		)	(166,935		)
Repurchase of common stock	—			(251,844		)	(334,429		)
Proceeds from stock options exercised	16,981			19,000			17,710
Net proceeds from issuance of common stock	—			—			2,597
Net proceeds from issuance of preferred stock	584,936			—			—
Other, net	5,122			5,583			4,635
Net cash provided by (used for) financing activities	2,767,665			3,521,883			4,335,428
Increase (decrease) in cash and cash equivalents	537,614			(373,409		)	219,433
Cash and cash equivalents at beginning of period	847,156			1,220,565			1,001,132
Cash and cash equivalents at end of period	$	1,384,770		$	847,156		$	1,220,565
Supplemental disclosures:
Interest paid	$	241,073		$	150,403		$	131,488
Income taxes paid	4,979			153,590			139,918
Non-cash activities:
Common stock issued to acquire FirstMerit	2,766,773			—			—
Preferred stock issued to acquire FirstMerit	104,320			—			—
Loans transferred to held-for-sale from portfolio	3,436,692			1,727,440			96,643
Loans transferred to portfolio from held-for-sale	481,516			278,080			45,240
Transfer of loans to OREO	78,693			24,625			39,066
Transfer of securities to held-to-maturity from available-for-sale	2,870,257			3,000,180			—

108

Huntington Bancshares Incorporated

Notes to Consolidated Financial Statements

1. SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations — Huntington Bancshares Incorporated (Huntington or the Company) is a multi-state diversified regional bank holding company organized under Maryland law in 1966 and headquartered in Columbus, Ohio. Through its subsidiaries, including its bank subsidiary, The Huntington National Bank (the Bank), Huntington is engaged in providing full-service commercial, small business, consumer banking services, mortgage banking services, automobile financing, recreational vehicle and marine financing, equipment leasing, investment management, trust services, brokerage services, customized insurance programs, and other financial products and services. Huntington’s banking offices are located in Ohio, Illinois, Michigan, Pennsylvania, Indiana, West Virginia, Wisconsin and Kentucky. 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.

Basis of Presentation — The Consolidated Financial Statements include the accounts of Huntington and its majority-owned subsidiaries and are presented in accordance with GAAP. All intercompany transactions and balances have been eliminated in consolidation. Companies in which Huntington holds more than a 50% voting equity interest, or a controlling financial interest, or are a VIE in which Huntington has the power to direct the activities of an entity that most significantly impact the entity’s economic performance and has an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are consolidated. VIEs are legal entities with insubstantial equity, whose equity investors lack the ability to make decisions about the entity’s activities, or whose equity investors do not have the obligation to absorb losses or the right to receive the residual returns of the entity if they occur. VIEs in which Huntington does not hold the power to direct the activities of the entity that most significantly impact the entity’s economic performance or does not have an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are not consolidated. For consolidated entities where Huntington holds less than a 100% interest, Huntington recognizes non-controlling interest (included in shareholders’ equity) for the equity held by others and non-controlling profit or loss (included in noninterest expense) for the portion of the entity’s earnings attributable to other’s interests. Investments in companies that are not consolidated are accounted for using the equity method when Huntington has the ability to exert significant influence. Those investments in nonmarketable securities for which Huntington does not have the ability to exert significant influence are generally accounted for using the cost method. Investments in private investment partnerships that are accounted for under the equity method or the cost method are included in Accrued income and other assets and Huntington’s proportional interest in the equity investments’ earnings are included in other noninterest income. Investment interests accounted for under the cost and equity methods are periodically evaluated for impairment.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that significantly affect amounts reported in the Consolidated Financial Statements. Huntington utilizes processes that involve the use of significant estimates and the judgments of management in determining the amount of its allowance for credit losses, income taxes deferred tax assets, and contingent liabilities, as well as fair value measurements of investment securities, derivatives, goodwill, other intangible assets, pension assets and liabilities, short-term borrowings, mortgage servicing rights, and loans held for sale. As with any estimate, actual results could differ from those estimates.

For statements 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.

Certain prior period amounts have been reclassified to conform to the current year’s presentation.

Resale and Repurchase Agreements — Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions and are recorded at the amounts at which the securities were acquired or sold plus accrued interest. The fair value of collateral either received from or provided to a third-party is continually monitored and additional collateral is obtained or requested to be returned to Huntington in accordance with the agreement.

Securities — Securities purchased with the intention of recognizing short-term profits or which are actively bought and sold are classified as trading account securities and reported at fair value. The unrealized gains or losses on trading account securities are recorded in other noninterest income, except for gains and losses on trading account securities used to economically hedge the fair value of MSRs, which are included in mortgage banking income. Debt securities purchased in which Huntington has the positive intent and ability to hold to their maturity are classified as held-to-maturity securities. Held-to-maturity securities are recorded at amortized cost. All other debt and equity securities are classified as available-for-sale and other securities. Unrealized gains or losses on available-for-sale and other securities are reported as a separate component of accumulated OCI in the Consolidated Statements of Changes in Shareholders’ Equity. Credit-related declines in the value of debt securities that are considered OTTI are recorded in noninterest income.

Huntington evaluates its investment securities portfolio on a quarterly basis for indicators of OTTI. Huntington assesses whether OTTI has occurred when the fair value of a debt security is less than the amortized cost basis at the balance sheet date. Management

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reviews the amount of unrealized loss, the length of time the security has been in an unrealized loss position, the credit rating history, market trends of similar security classes, time remaining to maturity, and the source of both interest and principal payments to identify securities which could potentially be impaired. For those debt securities that Huntington intends to sell or is more likely than not required to sell, before the recovery of their amortized cost bases, the difference between fair value and amortized cost is considered to be OTTI and is recognized in noninterest income. For those debt securities that Huntington does not intend to sell or is not more likely than not required to sell, prior to expected recovery of amortized cost bases, the credit portion of the OTTI is recognized in noninterest income while the noncredit portion is recognized on OCI. In determining the credit portion, Huntington uses a discounted cash flow analysis, which includes evaluating the timing and amount of the expected cash flows. Non-credit-related OTTI results from other factors, including increased liquidity spreads and higher interest rates. Presentation of OTTI is made in the Consolidated Statements of Income on a gross basis with a reduction for the amount of OTTI recognized in OCI.

Securities transactions are recognized on the trade date (the date the order to buy or sell is executed). The carrying value plus any related accumulated OCI balance of sold securities is used to compute realized gains and losses. Interest and dividends on securities, including amortization of premiums and accretion of discounts using the effective interest method over the period to maturity, are included in interest income.

Nonmarketable equity securities include stock acquired for regulatory purposes, such as Federal Home Loan Bank stock and Federal Reserve Bank stock. These securities are accounted for at cost, evaluated for impairment, and included in available-for-sale and other securities.

Loans and Leases — Loans and direct financing leases for which Huntington has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are classified in the Consolidated Balance Sheets as loans and leases. Except for loans for which the fair value option has been elected, loans and leases are carried at the principal amount outstanding, net of unamortized deferred loan origination fees and costs and net of unearned income. Direct financing leases are reported at the aggregate of lease payments receivable and estimated residual values, net of unearned and deferred income. Interest income is accrued as earned using the interest method based on unpaid principal balances. Huntington defers the fees it receives from the origination of loans and leases, as well as the direct costs of those activities. Huntington also acquires loans at a premium and at a discount to their contractual values. Huntington amortizes loan discounts, premiums, and net loan origination fees and costs on a level-yield basis over the contractual lives of the related loans, which would not include purchased credit impaired loans.

Troubled debt restructurings are loans for which the original contractual terms have been modified to provide a concession 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. Modifications resulting in troubled debt restructurings may include changes to one or more terms of the loan, including but not limited to, a change in interest rate, an extension of the repayment period, a reduction in payment amount, and partial forgiveness or deferment of principal or accrued interest.

Residual values on leased equipment are evaluated quarterly for impairment. Impairment of the residual values of direct financing leases determined to be other than temporary is recognized by writing the leases down to fair value with a charge to other noninterest expense. Leased equipment residual value impairment will arise if the expected fair value is less than the carrying amount, net of estimated amounts reimbursable by the lessee. Future declines in the expected residual value of the leased equipment would result in expected losses of the leased equipment.

For leased equipment, the residual component of a direct financing lease represents the estimated fair value of the leased equipment at the end of the lease term. Huntington uses industry data, historical experience, and independent appraisals to establish these residual value estimates. Additional information regarding product life cycle, product upgrades, as well as insight into competing products are obtained through relationships with industry contacts and are factored into residual value estimates where applicable.

Loans Held for Sale — Loans in which Huntington does not have the intent and ability to hold for the foreseeable future are classified as loans held for sale. Loans held for sale (excluding loans originated or acquired with the intent to sell, which are carried at fair value) are carried at the lower of cost or fair value less cost to sell. The fair value option is generally elected for mortgage loans held for sale to facilitate hedging of the loans. The fair value of such loans is estimated based on the inputs that include prices of mortgage backed securities adjusted for other variables such as, interest rates, expected credit defaults and market discount rates. The adjusted value reflects the price we expect to receive from the sale of such loans.

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.

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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 $1.0 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, and residential mortgage loans, 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 recorded in Accrued expenses and other liabilities in the Consolidated Balance Sheets.

Nonaccrual 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.

Any loan in any portfolio may be placed on nonaccrual status prior to the policies described below when collection of principal or interest is in doubt. When a borrower with debt is discharged in a Chapter 7 bankruptcy and not reaffirmed by the borrower, the loan is determined to be collateral dependent and placed on nonaccrual status, unless there is a co-borrower.

All classes within the C&I and CRE portfolios (except for purchased credit-impaired loans) are placed on nonaccrual status at 90-days past due. First-lien home equity loans 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 generally charged-off when the loan is 120-days past due. Residential mortgage loans are placed on nonaccrual status at 150-days past due, with the exception of residential mortgages guaranteed by government agencies which continue to accrue interest at the rate guaranteed by the government agency. We are reimbursed from the government agency for reasonable expenses incurred in servicing loans.

For all classes within all loan portfolios, when a loan is placed on nonaccrual status, any accrued interest income is reversed with current year accruals charged to interest income, and prior year amounts charged-off as a credit loss.

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For all classes within all loan portfolios, cash receipts on NALs are applied against principal until the loan or lease has been collected in full, including charged-off portion, after which time any additional cash receipts are recognized as interest income. However, for secured non-reaffirmed debt in a Chapter 7 bankruptcy, payments are applied to principal and interest when the borrower has demonstrated a capacity to continue payment of the debt and collection of the debt is reasonably assured. For unsecured non-reaffirmed debt in a Chapter 7 bankruptcy where the carrying value has been fully charged-off, payments are recorded as loan recoveries.

Regarding all classes within the C&I and CRE portfolios, the determination of a borrower’s ability to make the required principal and interest payments is based on an examination of the borrower’s current financial statements, industry, management capabilities, and other qualitative measures. For all classes within the consumer loan portfolio, the determination of a borrower’s ability to make the required principal and interest payments is based on multiple factors, including number of days past due and, in some instances, an evaluation of the borrower’s financial condition. When, in management’s judgment, the borrower’s ability to make required principal and interest payments resumes and collectability is no longer in doubt, supported by sustained repayment history, the loan is returned to accrual status. For these loans that have been returned to accrual status, cash receipts are applied according to the contractual terms of the loan.

Charge-off of Uncollectible Loans — 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 charged-off or written down to net realizable value at 90-days past due. Automobile 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.

Impaired Loans — For all classes within the C&I and CRE portfolios, all loans with an obligor balance of $1.0 million or greater are evaluated on a quarterly basis for impairment. Except for TDRs, consumer loans within any class are generally not individually evaluated on a regular basis for impairment. All TDRs, regardless of the outstanding balance amount, are also considered to be impaired. Loans acquired with evidence of deterioration in 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.

Purchased Credit-Impaired Loans — Purchased loans with evidence of deterioration in credit quality since origination for which it is probable at acquisition that we will be unable to collect all contractually required payments are considered to be credit impaired. Purchased credit-impaired loans are initially recorded at fair value, which is estimated by discounting the cash flows expected to be collected at the acquisition date. Because the estimate of expected cash flows reflects an estimate of future credit losses expected to be incurred over the life of the loans, an allowance for credit losses is not recorded at the acquisition date. The excess of cash flows expected at acquisition over the estimated fair value, referred to as the accretable yield, is recognized in interest income

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over the remaining life of the loan, or pool of loans, on a level-yield basis. The difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable difference. A subsequent decrease in the estimate of cash flows expected to be received on purchased credit-impaired loans generally results in the recognition of an allowance for credit losses. Subsequent increases in cash flows result in reversal of any nonaccretable difference (or allowance for loan and lease losses to the extent any has been recorded) with a positive impact on interest income subsequently recognized. The measurement of cash flows involves assumptions and judgments for interest rates, prepayments, default rates, loss severity, and collateral values. All of these factors are inherently subjective and significant changes in the cash flow estimates over the life of the loan can result.

Transfers of Financial Assets and Securitizations — Transfers of financial assets in which we have surrendered control over the transferred assets are accounted for as sales. In assessing whether control has been surrendered, we consider whether the transferee would be a consolidated affiliate, the existence and extent of any continuing involvement in the transferred financial assets, and the impact of all arrangements or agreements made contemporaneously with, or in contemplation of, the transfer, even if they were not entered into at the time of transfer. Control is generally considered to have been surrendered when (i) the transferred assets have been legally isolated from us or any of our consolidated affiliates, even in bankruptcy or other receivership, (ii) the transferee (or, if the transferee is an entity whose sole purpose is to engage in securitization or asset-backed financing that is constrained from pledging or exchanging the assets it receives, each third-party holder of its beneficial interests) has the right to pledge or exchange the assets (or beneficial interests) it received without any constraints that provide more than a trivial benefit to us, and (iii) neither we nor our consolidated affiliates and agents have (a) both the right and obligation under any agreement to repurchase or redeem the transferred assets before their maturity, (b) the unilateral ability to cause the holder to return specific financial assets that also provides us with a more-than-trivial benefit (other than through a cleanup call) or (c) an agreement that permits the transferee to require us to repurchase the transferred assets at a price so favorable that it is probable that it will require us to repurchase them.

If the sale criteria are met, the transferred financial assets are removed from our balance sheet and a gain or loss on sale is recognized. If the sale criteria are not met, the transfer is recorded as a secured borrowing in which the assets remain on our balance sheet and the proceeds from the transaction are recognized as a liability. For the majority of financial asset transfers, it is clear whether or not we have surrendered control. For other transfers, such as in connection with complex transactions or where we have continuing involvement, we generally obtain a legal opinion as to whether the transfer results in a true sale by law.

From time to time we securitize certain automobile receivables. Gains and losses on the loans and leases sold and servicing rights associated with loan and lease sales are determined when the related loans or leases are sold to either a securitization trust or third-party. For loan or lease sales with servicing retained, a servicing asset is recorded at fair value for the right to service the loans sold.

Derivative Financial Instruments — A variety of derivative financial instruments, principally interest rate swaps, caps, floors, and collars, are used in asset and liability management activities to protect against the risk of adverse price or interest rate movements. These instruments provide flexibility in adjusting Huntington’s sensitivity to changes in interest rates without exposure to loss of principal and higher funding requirements.

Huntington also uses derivatives, principally loan sale commitments, in hedging its mortgage loan interest rate lock commitments and its mortgage loans held for sale. Mortgage loan sale commitments and the related interest rate lock commitments are carried at fair value on the Consolidated Balance Sheets with changes in fair value reflected in mortgage banking income. Huntington also uses certain derivative financial instruments to offset changes in value of its MSRs. These derivatives consist primarily of forward interest rate agreements and forward mortgage contracts. The derivative instruments used are not designated as qualifying hedges. Accordingly, such derivatives are recorded at fair value with changes in fair value reflected in mortgage banking income.

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. On the date a derivative contract is entered into, we designate it as either:

• a qualifying hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge);

• a qualifying hedge of the variability of cash flows to be received or paid related to a recognized asset liability or forecasted transaction (cash flow hedge); or

• a trading instrument or a non-qualifying (economic) hedge.

Changes in the fair value of a derivative that has been designated and qualifies as a fair value hedge, along with the changes in the fair value of the hedged asset or liability that is attributable to the hedged risk, are recorded in current period earnings. Changes in the fair value of a derivative that has been designated and qualifies as a cash flow hedge, to the extent effective as a hedge, are recorded in accumulated other comprehensive income, net of income taxes, and reclassified into earnings in the period during which

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the hedged item affects earnings. Ineffectiveness in the hedging relationship is reflected in current period earnings. Changes in the fair value of derivatives held for trading purposes or which do not qualify for hedge accounting are reported in current period earnings.

For those derivatives to which hedge accounting is applied, Huntington formally documents the hedging relationship and the risk management objective and strategy for undertaking the hedge. This documentation identifies the hedging instrument, the hedged item or transaction, the nature of the risk being hedged, and, unless the hedge meets all of the criteria to assume there is no ineffectiveness, the method that will be used to assess the effectiveness of the hedging instrument and how ineffectiveness will be measured. The methods utilized to assess retrospective hedge effectiveness, as well as the frequency of testing, vary based on the type of item being hedged and the designated hedge period. For specifically designated fair value hedges of certain fixed-rate debt, Huntington utilizes the short-cut method when certain criteria are met. For other fair value hedges of fixed-rate debt, including certificates of deposit, Huntington utilizes the regression method to evaluate hedge effectiveness on a quarterly basis. For fair value hedges of portfolio loans, the regression method is used to evaluate effectiveness on a daily basis. For cash flow hedges, the regression method is applied on a quarterly basis.

Hedge accounting is discontinued prospectively when:

• the derivative is no longer effective or expected to be effective in offsetting changes in the fair value or cash flows of a hedged item (including firm commitments or forecasted transactions);

• the derivative expires or is sold, terminated, or exercised;

• it is unlikely that a forecasted transaction will occur;

• the hedged firm commitment no longer meets the definition of a firm commitment; or

• the designation of the derivative as a hedging instrument is removed.

When hedge accounting is discontinued because it is determined that the derivative no longer qualifies as an effective fair value or cash flow hedge, the derivative will continue to be carried on the balance sheet at fair value.

In the case of a discontinued fair value hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the hedged item will no longer be adjusted for changes in fair value. The basis adjustment that had previously been recorded to the hedged item during the period from the hedge designation date to the hedge discontinuation date is recognized as an adjustment to the yield of the hedged item over the remaining life of the hedged item.

In the case of a discontinued cash flow hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the effective portion of the changes in fair value of the hedging derivative will no longer be recorded to other comprehensive income. The balance applicable to the discontinued hedging relationship will be recognized in earnings over the remaining life of the hedged item as an adjustment to yield. If the discontinued hedged item was a forecasted transaction that is not expected to occur, any amounts recorded on the balance sheet related to the hedged item, including any amounts recorded in accumulated other comprehensive income, are immediately reclassified to current period earnings.

In the case of either a fair value hedge or a cash flow hedge, if the previously hedged item is sold or extinguished, the basis adjustment to the underlying asset or liability or any remaining unamortized other comprehensive income balance will be reclassified to current period earnings.

In all other situations in which hedge accounting is discontinued, the derivative will be carried at fair value on the consolidated balance sheets, with changes in its fair value recognized in current period earnings unless re-designated as a qualifying hedge.

Like other financial instruments, derivatives contain an element of credit risk, which is the possibility that Huntington will incur a loss because the counterparty fails to meet its contractual obligations. Notional values of interest rate swaps and other off-balance sheet financial instruments significantly exceed the credit risk associated with these instruments and represent contractual balances on which calculations of amounts to be exchanged are based. Credit exposure is limited to the sum of the aggregate fair value of positions that have become favorable to Huntington, including any accrued interest receivable due from counterparties. Potential credit losses are mitigated through careful evaluation of counterparty credit standing, selection of counterparties from a limited group of high quality institutions, collateral agreements, and other contract provisions. Huntington considers the value of collateral held and collateral provided in determining the net carrying value of derivatives.

Huntington offsets the fair value amounts recognized for derivative instruments and the fair value for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instrument(s) recognized at fair value executed with the same counterparty under a master netting arrangement.

Repossessed Collateral — Repossessed collateral, also referred to as OREO, is comprised principally of commercial and residential real estate properties obtained in partial or total satisfaction of loan obligations, and is carried at fair value. Collateral obtained in satisfaction of a loan is recorded at the estimated fair value less anticipated selling costs based upon the property’s

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appraised value at the date of foreclosure, with any difference between the fair value of the property and the carrying value of the loan recorded as a charge-off. If the fair value is higher than the carrying amount of the loan the excess is recognized first as a recovery and then as noninterest income. Subsequent declines in value are reported as adjustments to the carrying amount and are recorded in noninterest expense. Gains or losses resulting from the sale of collateral are recognized in noninterest expense at the date of sale.

Collateral — We pledge assets as collateral as required for various transactions including security repurchase agreements, public deposits, loan notes, derivative financial instruments, short-term borrowings and long-term borrowings. Assets that have been pledged as collateral, including those that can be sold or repledged by the secured party, continue to be reported on our Consolidated Balance Sheets.

We also accept collateral, primarily as part of various transactions including derivative and security resale agreements. Collateral accepted by us, including collateral that we can sell or repledge, is excluded from our Consolidated Balance Sheets.

The market value of collateral we have accepted or pledged is regularly monitored and additional collateral is obtained or provided as necessary to ensure appropriate collateral coverage in these transactions.

Premises and Equipment — Premises and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed principally by the straight-line method over the estimated useful lives of the related assets. Buildings and building improvements are depreciated over an average of 30 to 40 years and 10 to 30 years, respectively. Land improvements and furniture and fixtures are depreciated over an average of 5 to 20 years, while equipment is depreciated over a range of 3 to 10 years. Leasehold improvements are amortized over the lesser of the asset’s useful life or the lease term, including any renewal periods for which renewal is reasonably assured. Maintenance and repairs are charged to expense as incurred, while improvements that extend the useful life of an asset are capitalized and depreciated over the remaining useful life. Premises and equipment is evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Mortgage Servicing Rights — Huntington recognizes the rights to service mortgage loans as separate assets, which are included in Servicing Rights in the Consolidated Balance Sheets when purchased, or when servicing is contractually separated from the underlying mortgage loans by sale or securitization of the loans with servicing rights retained.

For loan sales with servicing retained, a servicing asset is recorded on the day of the sale at fair value for the right to service the loans sold. To determine the fair value of a MSR, Huntington uses an option adjusted spread cash flow analysis incorporating market implied forward interest rates to estimate the future direction of mortgage and market interest rates. The forward rates utilized are derived from the current yield curve for U.S. dollar interest rate swaps and are consistent with pricing of capital markets instruments. The current and projected mortgage interest rate influences the prepayment rate and, therefore, the timing and magnitude of the cash flows associated with the MSR. Servicing revenues on mortgage loans are included in mortgage banking income.

At the time of initial capitalization, MSRs may be grouped into servicing classes based on the availability of market inputs used in determining fair value and the method used for managing the risks of the servicing assets. MSR assets are recorded using the fair value method or the amortization method. The election of the fair value or amortization method is made at the time each servicing class is established. All newly created MSRs since 2009 were recorded using the amortization method. Any change in the fair value of MSRs carried under the fair value method, as well as amortization and impairment of MSRs under the amortization method, during the period is recorded in mortgage banking income, which is reflected in the Consolidated Statements of Income. Huntington economically hedges the value of certain MSRs using derivative instruments and trading securities. Changes in fair value of these derivatives and trading securities are reported as a component of mortgage banking income.

Goodwill and Other Intangible Assets — Under the acquisition method of accounting, the net assets of entities acquired by

Huntington are recorded at their estimated fair value at the date of acquisition. The excess cost of the acquisition over the fair value of net assets acquired is recorded as goodwill. Other intangible assets with finite useful lives are amortized either on an accelerated or straight-line basis over their estimated useful lives. Goodwill is evaluated for impairment on an annual basis at October 1^st of each year or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Indefinite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Pension and Other Postretirement Benefits — We recognize the funded status of the postretirement benefit plans on the Consolidated Balance Sheets. Net postretirement benefit cost charged to current earnings related to these plans is based on various actuarial assumptions regarding expected future experience.

Certain employees are participants in various defined contribution and other non-qualified supplemental retirement plans. Our contributions to defined contribution plans are charged to current earnings.

In addition, we maintain a 401(k) plan covering substantially all employees. Employer contributions to the plan, which are charged to current earnings, are based on employee contributions.

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Share-Based Compensation — We use the fair value based method of accounting for awards of HBAN stock granted to employees under various stock option and restricted share plans. Stock compensation costs are recognized prospectively for all new awards granted under these plans. Compensation expense relating to share options is calculated using a methodology that is based on the underlying assumptions of the Black-Scholes option pricing model and is charged to expense over the requisite service period (e.g. vesting period). Compensation expense relating to restricted stock awards is based upon the fair value of the awards on the date of grant and is charged to earnings over the requisite service period (e.g., vesting period) of the award.

Stock Repurchases — Acquisitions of Huntington stock are recorded at cost. The re-issuance of shares is recorded at weighted-average cost.

Income Taxes — Income taxes are accounted for under the asset and liability method. Accordingly, deferred tax assets and liabilities are recognized for the future book and tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are determined using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income at the time of enactment of such change in tax rates. Any interest or penalties due for payment of income taxes are included in the provision for income taxes. To the extent that we do not consider it more likely than not that a deferred tax asset will be recovered, a valuation allowance is recorded. All positive and negative evidence is reviewed when determining how much of a valuation allowance is recognized on a quarterly basis. In determining the requirements for a valuation allowance, sources of possible taxable income are evaluated including future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences and carryforwards, taxable income in appropriate carryback years, and tax-planning strategies. Huntington applies a more likely than not recognition threshold for all tax uncertainties.

Bank Owned Life Insurance — Huntington’s bank owned life insurance policies are recorded at their cash surrender value. Huntington recognizes tax-exempt income from the periodic increases in the cash surrender value of these policies and from death benefits. A portion of the cash surrender value is supported by holdings in separate accounts. Book value protection for the separate accounts is provided by the insurance carriers and a highly rated major bank.

Fair Value Measurements — The Company records or discloses certain of its assets and liabilities at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Fair value measurements are classified within one of three levels in a valuation hierarchy based upon the observability of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows:

Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Segment Results — Accounting policies for the business segments are the same as those used in the preparation of the Consolidated Financial Statements with respect to activities specifically attributable to each business segment. However, the preparation of business segment results requires management to establish methodologies to allocate funding costs and benefits, expenses, and other financial elements to each business segment, which is described in Note 24.

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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 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 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 Consolidated Financial Statements. Huntington expects to recognize a right-of-use asset and a lease liability for its operating lease commitments. Please refer to Note 21 for Huntington's commitments under operating lease obligations.

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, changes in the derivative counterparty should not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This Update is effective for financial statements issued for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. Early application is permitted. An entity has an option to apply the amendments in this Update on either a prospective basis or a modified retrospective basis. Management does not believe the new guidance will have a significant impact on Huntington's 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. This Update is effective for financial statements issued for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. Early adoption is permitted. An entity should apply this Update on a modified retrospective basis to existing debt instruments as of the beginning of the fiscal year for which the amendments are effective. This Update is not expected to have a significant impact on Huntington's 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. This Update is effective for fiscal years, and interim periods within those fiscal

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years, beginning after December 15, 2016. The amendments are not expected to have a significant impact on Huntington's Consolidated Financial Statements.

ASU 2016-09 - Improvements to Employee Share-Based Payment Accounting. This Update simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification in the statement of cash flows. The amendments, among other things, require all tax benefits and tax deficiencies related to share-based awards to be recognized in the income statement. Other changes include an election related to the accounting for forfeitures, changes to the cash flow statement presentation for excess tax benefits, as well as for cash paid by an employer when directly withholding shares for tax withholding purposes. The amendments are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any entity in any interim or annual period. This Update was adopted in the current reporting period with no significant impact recognized on Huntington’s 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 Consolidated Financial Statements. Management has formed a working group comprising 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 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 earlier this year. 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 amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The adoption of the Update is not expected to have a significant impact on Huntington’s Consolidated Financial Statements.

3.ACQUISITION OF FIRSTMERIT CORPORATION

On August 16, 2016, Huntington completed its acquisition of FirstMerit Corporation in a stock and cash transaction valued at approximately $3.7 billion. FirstMerit Corporation was a diversified financial services company headquartered in Akron, Ohio, with operations in Ohio, Michigan, Wisconsin, Illinois and Pennsylvania. Post merger, Huntington now operates across an eight-state Midwestern footprint. The merger resulted in a combined company with a larger market presence and more diversified loan portfolio, as well as a larger core deposit funding base and economies of scale associated with a larger financial institution.

Under the terms of the agreement, shareholders of FirstMerit Corporation received 1.72 shares of Huntington common stock, and $5.00 in cash, for each share of FirstMerit Corporation common stock. The aggregate purchase price was $3.7 billion, including $0.8 billion of cash, $2.8 billion of common stock, and $0.1 billion of preferred stock. Huntington issued 285 million shares of common stock that had a total fair value of $2.8 billion based on the closing market price of $9.68 per share on August 15, 2016.

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The acquisition of FirstMerit constituted a business combination. The FirstMerit merger has been accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration exchanged were recorded at estimated fair value on the acquisition date. The determination of estimated fair values required management to make certain estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and may require adjustments, which can be updated for up to a year following the acquisition. As of December 31, 2016, Management completed its review of information relating to events or circumstances existing at the acquisition date.

The following table reflects consideration paid for FirstMerit's net assets and the amounts of acquired identifiable assets and liabilities assumed as of the acquisition date:

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	FirstMerit
(dollar amounts in thousands)	UPB		Fair Value
Assets acquired:
Cash and due from banks			$	703,661
Interest-bearing deposits in banks			32,496
Loans held for sale			150,576
Available for sale and other securities			7,369,967
Loans and leases:
Commercial:
Commercial and industrial	$	7,410,503	7,252,692
Commercial real estate	1,898,875		1,844,150
Total commercial	9,309,378		9,096,842
Consumer:
Automobile	1,610,007		1,609,145
Home equity	1,579,832		1,537,791
Residential mortgage	1,098,588		1,092,050
RV and marine finance	1,823,312		1,816,575
Other consumer	324,350		323,512
Total consumer	6,436,089		6,379,073
Total loans and leases	$	15,745,467	15,475,915
Bank owned life insurance			633,612
Premises and equipment			228,635
Goodwill			1,320,818
Core deposit intangible			309,750
Other intangible assets			94,571
Servicing rights			15,317
Accrued income and other assets			506,578
Total assets acquired			26,841,896
Liabilities assumed:
Deposits			21,157,172
Short-term borrowings			1,163,851
Long-term debt			519,971
Accrued expenses and other liabilities			292,930
Total liabilities assumed			23,133,924
Total consideration paid			$	3,707,972
Consideration:
Cash paid			$	836,879
Fair value of common stock issued			2,766,773
Fair value of preferred stock exchange			104,320

Information regarding the allocation of goodwill recorded as a result of the acquisition to the Company’s reportable segments, as well as the carrying amounts and amortization of core deposit and other intangible assets, is provided in Note 8 of the Notes to Consolidated Financial Statements. The total amount of goodwill that is expected to be deductible for tax purposes is $339 million.

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The following is a description of the methods used to determine the fair values of significant assets and liabilities presented above.

Cash and due from banks, interest-bearing deposits in banks, and loans held for sale: The carrying amount of these assets is a reasonable estimate of fair value based on the short-term nature of these assets.

Securities: Fair values for securities were based on quoted market prices, where available. If quoted market prices were not available, fair value estimates were based on observable inputs including quoted market prices for similar instruments, quoted market prices that were not in an active market or other inputs that were observable in the market. In the absence of observable inputs, fair value is estimated based on pricing models and/or discounted cash flow methodologies.

Loans and leases: Fair values for loans were based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan, amortization status and current discount rates. Loans were grouped together according to similar characteristics when applying various valuation techniques. The discount rates used for loans were based on current market rates for new originations of comparable loans and include adjustments for any liquidity concerns. The discount rate does not include a factor for credit losses as that has been included as a reduction to the estimated cash flows.

CDI: This intangible asset represents the value of the relationships with deposit customers. The fair value was estimated based on a discounted cash flow methodology that gave appropriate consideration to expected customer attrition rates, net maintenance cost of the deposit base, alternative cost of funds, and the interest costs associated with customer deposits. The CDI is being amortized over 10 years based upon the period over which estimated economic benefits were estimated to be received.

Deposits: The fair values used for the demand and savings deposits by definition equal the amount payable on demand at the acquisition date. The fair values for time deposits were estimated using a discounted cash flow calculation that applies interest rates currently being offered to the contractual interest rates on such time deposits.

Debt: The fair values of long-term debt instruments were estimated based on quoted market prices for the instrument if available, or for similar instruments if not available, or by using discounted cash flow analyses, based on current incremental borrowing rates for similar types of instruments.

The following table presents financial information regarding the former FirstMerit operations included in our Consolidated Statements of Income from the date of acquisition (August 16, 2016) through December 31, 2016 under the column “Actual from acquisition date”. The following table also presents unaudited pro forma information as if the entities were combined for the full years ended December 31, 2016 and 2015, respectively under the “Unaudited Pro Forma” columns. The pro forma information does not necessarily reflect the results of operations that would have occurred had Huntington acquired FirstMerit on January 1, 2015. Furthermore, cost savings and other business synergies related to the acquisition are not reflected in the pro forma amounts.

	Actual from		Unaudited Pro Forma for
	acquisition date through		Year Ended December 31,
(dollar amounts in thousands)	December 31, 2016		2016		2015
Net interest income	$	277,143	$	2,788,074	$	2,599,840
Noninterest income	96,217		1,311,490		1,301,798
Net income	82,083		809,142		842,069

This unaudited pro forma information combines the historical consolidated results of operations of Huntington and FirstMerit for the periods presented and gives effect to the following nonrecurring adjustments:

Fair value adjustments: Pro forma adjustment to decrease net interest income by $12 million and $18 million for the years ended December 31, 2016 and 2015, to record estimated amortization of premiums and accretion of discounts on acquired loans, securities, deposits, and long-term debt.  

FirstMerit accretion /amortization: Pro forma adjustment to decrease net interest income by $34 million and $79 million for the years ended December 31, 2016 and 2015, to eliminate FirstMerit amortization of premiums and accretion of discounts on previously acquired loans, securities, and deposits.

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Amortization of acquired intangibles: Pro forma adjustment to increase noninterest expense by $28 million and $44 million for the years ended December 31, 2016 and 2015, to record estimated amortization of acquired intangible assets.

Huntington merger-related costs: Pro forma results include Huntington merger-related costs which primarily included, but were not limited to, severance costs, professional services, data processing fees, marketing and advertising expenses totaling $281 million for the year ended December 31, 2016.

Other adjustments: Pro forma results also include adjustments related to branch divestitures, incremental interest expense on the issuance on acquisition debt, elimination of FirstMerit's intangible amortization expense, FirstMerit merger-related costs, and related income-tax effects.

Branch divestiture: On December 5, 2016, Huntington completed the previously announced sale of 13 acquired branches and certain related assets and deposit liabilities to First Commonwealth Bank, the banking subsidiary of First Commonwealth Financial Corporation. The sale was in connection with an agreement reached with the U.S. Department of Justice in order to resolve its competitive concerns about Huntington’s acquisition of FirstMerit. Total deposits and loans transferred to First Commonwealth Bank in the transaction totaled $620 million and $106 million, respectively.

4. LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

Except for loans which are accounted for at fair value, loans are carried at the principal amount outstanding, net of unamortized premiums and discounts, deferred loan fees and costs and purchase accounting adjustments, which resulted in a net premium of $120 million and $262 million, at December 31, 2016 and 2015, respectively.

Loans and leases with a fair value of $15 billion were acquired by Huntington as part of the FirstMerit acquisition. The fair values of the loans were estimated using discounted cash flow analyses using interest rates currently being offered for loans with similar terms (Level 3). Of the total acquired loans and leases, Huntington has elected the fair value option for $56 million of consumer loans. These loans will subsequently be measured at fair value with any changes in fair value recognized in noninterest income in the Consolidated Statements of Income.

Direct Financing Leases

Huntington’s loan and lease portfolio includes lease financing receivables consisting of direct financing leases on equipment, which are included in C&I loans. Net investments in lease financing receivables by category at December 31, 2016 and 2015 were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Commercial and industrial:
Lease payments receivable	$	1,881,596		$	1,551,885
Estimated residual value of leased assets	797,611			711,181
Gross investment in commercial lease financing receivables	2,679,207			2,263,066
Net deferred origination costs	12,683			7,068
Deferred fees	(253,423		)	(208,669		)
Total net investment in commercial lease financing receivables	$	2,438,467		$	2,061,465

The future lease rental payments due from customers on direct financing leases at December 31, 2016, totaled $1.9 billion and therefore were as follows: $0.6 billion in 2017, $0.5 billion in 2018, $0.3 billion in 2019, $0.2 billion in 2020, $0.1 billion in 2021, and $0.2 billion thereafter.

Purchased Credit-Impaired Loans

The following table reflects the contractually required payments receivable, cash flows expected to be collected, and fair value of the credit impaired FirstMerit loans at acquisition date:

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(dollar amounts in thousands)	August 16, 2016
Contractually required payments including interest	$	283,947
Less: nonaccretable difference	(84,315		)
Cash flows expected to be collected	199,632
Less: accretable yield	(17,717		)
Fair value of loans acquired	$	181,915

The following table presents a rollforward of the accretable yield for purchased credit impaired FirstMerit loans for the year ended December 31, 2016: and 2015:

(dollar amounts in thousands)	2016
Balance, beginning of period	$	—
Impact of acquisition/purchase on August 16, 2016	17,717
Accretion	(5,401		)
Reclassification (to) from nonaccretable difference	24,353
Balance at December 31,	$	36,669

The following table reflects the ending and unpaid balances of the FirstMerit purchased credit-impaired loans at December 31, 2016: 2015

	December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance
Commercial and industrial	$	68,338	$	100,031
Commercial real estate	34,042		56,320
Total	$	102,380	$	156,351

Loan Purchases and Sales

The following table summarizes significant portfolio loan purchase and sale activity for the years ended December 31, 2016 and 2015. The table below excludes mortgage loans originated for sale.

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(dollar amounts in thousands)	2016				2015
Portfolio loans and leases purchased or transferred from held for sale:
Commercial and industrial	$	394,579			$	316,252
Commercial real estate	—				—
Automobile	—				—
Home equity	—				—
Residential mortgage	16,045				20,463
RV and marine finance	—				—
Other consumer	—				—
Total	$	410,624			$	336,715
Portfolio loans and leases sold or transferred to loans held for sale:
Commercial and industrial	$	1,293,711	(1	)	$	380,713
Commercial real estate	76,965		(2	)	—
Automobile	1,544,642				764,540		(3)
Home equity	—				96,786
Residential mortgage	—				—
RV and marine finance	—				—
Other consumer	—				—
Total	$	2,915,318			$	1,242,039

(1) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale in the 2016 third quarter, net of approximately $341 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(2) Reflects the transfer of approximately $124 million of loans to loans held-for-sale in the 2016 third quarter, net of approximately $47 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(3) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale during the 2015 first quarter, net of approximately $262 million of loans transferred to loans and leases in the 2015 second quarter.

NALs and Past Due Loans

The following table presents NALs by loan class at December 31, 2016 and 2015:

	December 31,
(dollar amounts in thousands)	2016		2015
Commercial and industrial	$	234,184	$	175,195
Commercial real estate	20,508		28,984
Automobile	5,766		6,564
Home equity	71,798		66,278
Residential mortgage	90,502		94,560
RV and marine finance	245		—
Other consumer	—		—
Total nonaccrual loans	$	423,003	$	371,581

The amount of interest that would have been recorded under the original terms for total NAL loans was $24 million, $20 million, and $21 million for 2016, 2015, and 2014, respectively. The total amount of interest recorded to interest income for these loans was $17 million, $10 million, and $8 million in 2016, 2015, and 2014, respectively.

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The following table presents an aging analysis of loans and leases, including past due loans and leases, by loan class at December 31, 2016 and 2015 (1):

	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 and leases	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
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

	December 31, 2015
	Past Due										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
Commercial and industrial	$	44,715	$	13,580	$	46,978	$	105,273	$	20,454,561	$	20,559,834	$	8,724	(2)
Commercial real estate	9,232		5,721		21,666		36,619		5,232,032		5,268,651		9,549
Automobile loans and leases	69,553		14,965		7,346		91,864		9,388,814		9,480,678		7,162
Home equity	36,477		16,905		56,300		109,682		8,360,800		8,470,482		9,044
Residential mortgage	102,773		34,298		119,354		256,425		5,741,975		5,998,400		69,917
RV and marine finance	—		—		—		—		—		—		—
Other consumer	6,469		1,852		1,395		9,716		553,338		563,054		1,394
Total loans and leases	$	269,219	$	87,321	$	253,039	$	609,579	$	49,731,520	$	50,341,099	$	105,790

(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.

Allowance for Credit Losses

The ACL is increased through a provision for credit losses that is charged to earnings, based on the Company’s quarterly evaluation of the factors disclosed in Note 1. Significant Accounting Policies and is reduced by charge-offs, net of recoveries, and the ACL associated with loans sold or transferred to held-for-sale.

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The following table presents ALLL and AULC activity by portfolio segment for the years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	Commercial			Consumer			Total
Year ended December 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(91,914		)	(135,400		)	(227,314		)
Recoveries of loans previously charged-off	73,138			45,280			118,418
Provision (reduction in allowance) for loan and lease losses	84,381			85,026			169,407
Allowance for loans sold or transferred to loans held for sale	(13,267		)	(6,674		)	(19,941		)
ALLL balance, end of period	$	451,091		$	187,322		$	638,413
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	18,692			2,703			21,395
AULC recorded at acquisition	4,403			—			4,403
AULC balance, end of period	$	86,543		$	11,336		$	97,879
ACL balance, end of period	$	537,634		$	198,658		$	736,292
Year ended December 31, 2015:
ALLL balance, beginning of period	$	389,834		$	215,362		$	605,196
Loan charge-offs	(97,800		)	(120,081		)	(217,881		)
Recoveries of loans previously charged-off	86,419			43,669			130,088
Provision (reduction in allowance) for loan and lease losses	20,300			68,379			88,679
Allowance for loans sold or transferred to loans held for sale	—			(8,239		)	(8,239		)
ALLL balance, end of period	$	398,753		$	199,090		$	597,843
AULC balance, beginning of period	$	55,029		$	5,777		$	60,806
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	8,419			2,856			11,275
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	63,448		$	8,633		$	72,081
ACL balance, end of period	$	462,201		$	207,723		$	669,924
Year ended December 31, 2014:
ALLL balance, beginning of period	$	428,358		$	219,512		$	647,870
Loan charge-offs	(101,358		)	(145,243		)	(246,601		)
Recoveries of loans previously charged-off	78,602			43,372			121,974
Provision (reduction in allowance) for loan and lease losses	(15,768		)	98,850			83,082
Allowance for loans sold or transferred to loans held for sale	—			(1,129		)	(1,129		)
ALLL balance, end of period	$	389,834		$	215,362		$	605,196
AULC balance, beginning of period	$	59,487		$	3,412		$	62,899
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(4,458		)	2,365			(2,093		)
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	55,029		$	5,777		$	60,806
ACL balance, end of period	$	444,863		$	221,139		$	666,002

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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. For these reasons, Huntington considers the loans to be potential problem loans.

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 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 December 31, 2016 and 2015:

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
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
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

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	December 31, 2015
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial and industrial	$	19,257,789	$	399,339	$	895,577	$	7,129	$	20,559,834
Commercial real estate	5,066,054		79,787		121,167		1,643		5,268,651
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Automobile	4,680,684		3,454,585		1,086,914		258,495		9,480,678
Home equity	5,210,741		2,466,425		582,326		210,990		8,470,482
Residential mortgage	3,564,064		1,813,779		567,984		52,573		5,998,400
RV and marine finance	—		—		—		—		—
Other consumer	233,969		269,746		49,650		9,689		563,054

(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. 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.

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 for the years ended December 31, 2016 and 2015:

(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 balance:
Attributable to 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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(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2015:
Portion of ALLL balance:
Attributable to purchased credit-impaired loans	$	2,602	$	127	$	2,729
Attributable to loans individually evaluated for impairment	27,428		35,008		62,436
Attributable to loans collectively evaluated for impairment	368,723		163,955		532,678
Total ALLL balance:	$	398,753	$	199,090	$	597,843
Loan and Lease Ending Balances at December 31, 2015: (1)
Portion of loan and lease ending balances:
Attributable to purchased credit-impaired loans	$	34,775	$	1,506	$	36,281
Individually evaluated for impairment	626,010		651,778		1,277,788
Collectively evaluated for impairment	25,167,700		23,859,330		49,027,030
Total loans and leases evaluated for impairment	$	25,828,485	$	24,512,614	$	50,341,099

(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 for the years ended December 31, 2016 and 2015 (1):

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							Year Ended
	December 31, 2016						December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	292,567	$	9,401
Commercial real estate	88,817		126,152		—		73,040		4,191
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (2)	406,243		448,121		22,259		301,598		8,124
Commercial real estate (3)	97,238		107,512		3,434		68,865		2,978
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage (5)	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233
Total
Commercial and industrial	705,849		806,833		22,259		594,165		17,525
Commercial real estate	186,055		233,664		3,434		141,905		7,169
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233

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							Year Ended
	December 31, 2015						December 31, 2015
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	255,801	$	279,551	$	—	$	114,389	$	2,584
Commercial real estate	68,260		125,814		—		88,173		7,199
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	52		101		—		51		17
With an allowance recorded:
Commercial and industrial (2)	246,249		274,203		21,916		267,662		15,110
Commercial real estate (3)	90,475		104,930		8,114		114,019		4,833
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage (5)	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,640		4,649		176		4,675		254
Total
Commercial and industrial	502,050		553,754		21,916		382,051		17,694
Commercial real estate	158,735		230,744		8,114		202,192		12,032
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,692		4,750		176		4,726		271

(1) All automobile, home equity, residential mortgage, and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(2) At December 31, 2016, $293 million of the $406 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $91 million of the $246 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR.

(3) At December 31, 2016, $81 million of the $97 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $35 million of the $90 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR.

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

(5) At December 31, 2016, $29 million of the $328 million residential mortgage loans with an allowance recorded were guaranteed by the U.S. government. At December 31, 2015, $29 million of the $368 million residential mortgage loans with an allowance recorded were guaranteed by the U.S. government.

TDR Loans

The amount of interest that would have been recorded under the original terms for total accruing TDR loans was $49 million, $46 million, and $45 million for 2016, 2015, and 2014, respectively. The total amount of actual interest recorded to interest income for these loans was $40 million, $41 million, and $39 million for 2016, 2015, and 2014, respectively.

TDR Concession Types

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The Company’s standards relating to loan modifications consider, among other factors, minimum verified income requirements, cash flow analyses, and collateral valuations. Each potential loan modification is reviewed individually and the terms of the loan are modified to meet a borrower’s specific circumstances at a point in time. All commercial TDRs are reviewed and approved by our SAD. The types of concessions provided to borrowers include:

• Interest rate reduction: A reduction of the stated interest rate to a nonmarket rate for the remaining original life of the debt.

• Amortization or maturity date change beyond what the collateral supports, including any of the following:

• Lengthens the amortization period of the amortized principal beyond market terms. This concession reduces the minimum monthly payment and could increase the amount of the balloon payment at the end of the term of the loan. Principal is generally not forgiven.

• Reduces the amount of loan principal to be amortized and increases the amount of the balloon payment at the end of the term of the loan. This concession also reduces the minimum monthly payment. Principal is generally not forgiven.

• Extends the maturity date or dates of the debt beyond what the collateral supports. This concession generally applies to loans without a balloon payment at the end of the term of the loan.

• Chapter 7 bankruptcy: A bankruptcy court’s discharge of a borrower’s debt is considered a concession when the borrower does not reaffirm the discharged debt.

• Other: A concession that is not categorized as one of the concessions described above. These concessions include, but are not limited to: principal forgiveness, collateral concessions, covenant concessions, and reduction of accrued interest. Principal forgiveness may result from any TDR modification of any concession type. However, the aggregate amount of principal forgiven as a result of loans modified as TDRs during the years ended December 31, 2016 and 2015, was not significant.

Following is a description of TDRs by the different loan types:

Commercial loan TDRs – Commercial accruing TDRs often result from loans receiving a concession with terms that are not considered a market transaction to Huntington. The TDR remains in accruing status as long as the customer is less than 90-days past due on payments per the restructured loan terms and no loss is expected.

Commercial nonaccrual TDRs result from either: (1) an accruing commercial TDR being placed on nonaccrual status, or (2) a workout where an existing commercial NAL is restructured and a concession is given. At times, these workouts restructure the NAL so that two or more new notes are created. The primary note is underwritten based upon our normal underwriting standards and is sized so projected cash flows are sufficient to repay contractual principal and interest. The terms on the secondary note(s) vary by situation, and may include notes that defer principal and interest payments until after the primary note is repaid. Creating two or more notes often allows the borrower to continue a project and allows Huntington to right-size a loan based upon the current expectations for a borrower’s or project’s performance.

Our strategy involving TDR borrowers includes working with these borrowers to allow them to refinance elsewhere, as well as allow them time to improve their financial position and remain a Huntington customer through refinancing their notes according to market terms and conditions in the future. A subsequent refinancing or modification of a loan may occur when either the loan matures according to the terms of the TDR-modified agreement or the borrower requests a change to the loan agreements. At that time, the loan is evaluated to determine if the borrower is creditworthy. It is subjected to the normal underwriting standards and processes for other similar credit extensions, both new and existing. The refinanced note is evaluated to determine if it is considered a new loan or a continuation of the prior loan. A new loan is considered for removal of the TDR designation, whereas a continuation of the prior note requires a continuation of the TDR designation. In order for a TDR designation to be removed, the borrower must no longer be experiencing financial difficulties and the terms of the refinanced loan must not represent a concession.

Consumer loan TDRs – Residential mortgage TDRs represent loan modifications associated with traditional first-lien mortgage loans in which a concession has been provided to the borrower. The primary concessions given to residential mortgage borrowers are amortization or maturity date changes and interest rate reductions. Residential mortgages identified as TDRs involve borrowers unable to refinance their mortgages through the Company’s normal mortgage origination channels or through other independent sources. Some, but not all, of the loans may be delinquent. The Company may make similar interest rate, term, and principal concessions for Automobile, Home Equity, RV and Marine Finance and Other Consumer loan TDRs.

TDR Impact on Credit Quality

Huntington’s ALLL is largely determined by updated risk ratings assigned to commercial loans, updated borrower credit scores on consumer loans, and borrower delinquency history in both the commercial and consumer portfolios. These updated risk ratings and credit scores consider the default history of the borrower, including payment redefaults. As such, the provision for credit losses is impacted primarily by changes in borrower payment performance rather than the TDR classification. TDRs can be classified as either accrual or nonaccrual loans. Nonaccrual TDRs are included in NALs whereas accruing TDRs are excluded from NALs as it is probable that all contractual principal and interest due under the restructured terms will be collected.

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The Company's TDRs may include multiple concessions and the disclosure classifications are presented based on the primary concession provided to the borrower. The majority of the concessions for the C&I and CRE portfolios are the extension of the maturity date, but could also include an increase in the interest rate. In these instances, the primary concession is the maturity date extension.

TDR concessions may also result in the reduction of the ALLL within the C&I and CRE portfolios. This reduction is derived from payments and the resulting application of the reserve calculation within the ALLL. The transaction reserve for non-TDR C&I and CRE loans is calculated based upon several estimated probability factors, such as PD and LGD. Upon the occurrence of a TDR in our C&I and CRE portfolios, the reserve is measured based on discounted expected cash flows or collateral value, less anticipated selling costs, of the modified loan in accordance with ASC 310-10. The resulting TDR ALLL calculation often results in a lower ALLL amount because (1) the discounted expected cash flows or collateral value, less anticipated selling costs, indicate a lower estimated loss, (2) if the modification includes a rate increase, the discounting of the cash flows on the modified loan, using the pre-modification interest rate, exceeds the carrying value of the loan, or (3) payments may occur as part of the modification. The ALLL for C&I and CRE loans may increase as a result of the modification, as the discounted cash flow analysis may indicate additional reserves are required.

TDR concessions on consumer loans may increase the ALLL. The concessions made to these borrowers often include interest rate reductions, and therefore, the TDR ALLL calculation results in a greater ALLL compared with the non-TDR calculation as the reserve is measured based on the estimation of the discounted expected cash flows or collateral value, less anticipated selling costs, on the modified loan in accordance with ASC 310-10. The resulting TDR ALLL calculation often results in a higher ALLL amount because (1) the discounted expected cash flows or collateral value, less anticipated selling costs, indicate a higher estimated loss or, (2) due to the rate decrease, the discounting of the cash flows on the modified loan, using the pre-modification interest rate, indicates a reduction in the present value of expected cash flows or collateral value, less anticipated selling costs. However, in certain instances, the ALLL may decrease as a result of payments made in connection with the modification.

Commercial loan TDRs – In instances where the bank substantiates that it will collect its outstanding balance in full, the note is considered for return to accrual status upon the borrower showing a sustained period of repayment performance for a six-month period of time. This six-month period could extend before or after the restructure date. If a charge-off was taken as part of the restructuring, any interest or principal payments received on that note are applied to first reduce the bank’s outstanding book balance and then to recoveries of charged-off principal, unpaid interest, and/or fee expenses while the TDR is in nonaccrual status.

Consumer loan TDRs – Modified consumer loans identified as TDRs are aggregated into pools for analysis. Cash flows and weighted average interest rates are used to calculate impairment at the pooled-loan level. Once the loans are aggregated into the pool, they continue to be classified as TDRs until contractually repaid or charged-off.

Residential mortgage loans not guaranteed by a U.S. government agency such as the FHA, VA, and the USDA, including TDR loans, are reported as accrual or nonaccrual based upon delinquency status. Nonaccrual TDRs are those that are greater than 150-days contractually past due. Loans guaranteed by U.S. government organizations continue to accrue interest on guaranteed rates upon delinquency.

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 years ended December 31, 2016 and 2015:

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	New Troubled Debt Restructurings During The Year Ended (1)
	December 31, 2016						December 31, 2015
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)			Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)
Commercial and industrial:
Interest rate reduction	4	161		5			13	8,243		(1,042		)
Amortization or maturity date change	872	490,488		(8,751		)	765	524,356		(5,853		)
Other	20	1,951		(13.996		)	16	29,842		(449		)
Total Commercial and industrial	896	492,600		(8,760		)	794	562,441		(7,344		)
Commercial real estate:
Interest rate reduction	2	223		—			4	2,249		(4		)
Amortization or maturity date change	111	69,192		(1,868		)	143	141,238		(1,249		)
Other	4	315		16			11	480		(30		)
Total commercial real estate:	117	69,730		(1,852		)	158	143,967		(1,283		)
Automobile:
Interest rate reduction	17	212		12			41	121		5
Amortization or maturity date change	1,593	14,542		1,065			1,591	12,268		533
Chapter 7 bankruptcy	1,059	8,418		400			926	7,390		423
Other	—	—		—			—	—		—
Total Automobile	2,669	23,172		1,477			2,558	19,779		961
Home equity:
Interest rate reduction	55	2,928		110			55	4,399		161
Amortization or maturity date change	578	32,006		(3,709		)	1,591	79,023		(10,639		)
Chapter 7 bankruptcy	282	10,035		2,819			330	9,855		4,271
Other	—	—		—			—	—		—
Total Home equity	915	44,969		(780		)	1,976	93,277		(6,207		)
Residential mortgage:
Interest rate reduction	13	1,287		(18		)	15	1,565		(61		)
Amortization or maturity date change	363	39,170		(1,650		)	518	57,859		(455		)
Chapter 7 bankruptcy	62	5,715		(86		)	139	14,183		(164		)
Other	4	424		—			11	1,266		—
Total Residential mortgage	442	46,596		(1,754		)	683	74,873		(680		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	—	—		—			—	—		—
Chapter 7 bankruptcy	—	—		—			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	—	—		—			—	—		—
Other consumer:
Interest rate reduction	—	—		—			1	96		3
Amortization or maturity date change	6	575		24			10	198		8
Chapter 7 bankruptcy	8	72		7			11	69		9
Other	—	—		—			—	—		—
Total Other consumer	14	647		31			22	363		20
Total new troubled debt restructurings	5,053	$	677,714	$	(11,638	)	6,191	$	894,700	$	(14,533	)

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

(2) Post-modification balances approximate pre-modification balances. The aggregate amount of charge-offs as a result of a restructuring are not significant.

(3) Amounts represent the financial impact via provision (recovery) for loan and lease losses as a result of the modification.

Pledged Loans and Leases

The Bank has access to the Federal Reserve’s discount window and advances from the FHLB – Cincinnati. As of December 31, 2016 and 2015, these borrowings and advances are secured by $19.7 billion and $17.5 billion, respectively of loans and securities.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which was re-branded Huntington Technology Finance. Huntington assumed debt associated with two securitizations. As of December 31, 2016, the debt is secured by $70 million of on balance sheet leases held by the trusts.

5. AVAILABLE-FOR-SALE AND OTHER SECURITIES

Contractual maturities of available-for-sale and other securities as of December 31, 2016 and 2015 were:

	2016				2015
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Under 1 year	$	223,789	$	221,495	$	333,891	$	332,980
After 1 year through 5 years	1,147,510		1,149,460		1,184,454		1,189,455
After 5 years through 10 years	1,956,893		1,962,345		1,648,808		1,645,759
After 10 years	11,884,812		11,665,245		5,259,855		5,263,063
Other securities:
Nonmarketable equity securities	547,704		547,704		332,786		332,786
Mutual funds	15,286		15,286		10,604		10,604
Marketable equity securities	861		1,302		525		794
Total available-for-sale and other securities	$	15,776,855	$	15,562,837	$	8,770,923	$	8,775,441

Other securities at December 31, 2016 and 2015 include nonmarketable equity securities of $249 million and $157 million of stock issued by the FHLB and $299 million and $176 million of Federal Reserve Bank stock, respectively. Nonmarketable 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 December 31, 2016 and 2015:

			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

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			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
U.S. Treasury	$	5,457	$	15	$	—		$	5,472
Federal agencies:
Mortgage-backed securities	4,505,318		30,078		(13,708		)	4,521,688
Other agencies	115,076		888		(51		)	115,913
Total U.S. Treasury, Federal agency securities	4,625,851		30,981		(13,759		)	4,643,073
Municipal securities	2,431,943		51,558		(27,105		)	2,456,396
Asset-backed securities	901,059		535		(40,181		)	861,413
Corporate debt	464,207		4,824		(2,554		)	466,477
Other securities	347,863		271		(52		)	348,082
Total available-for-sale and other securities	$	8,770,923	$	88,169	$	(83,651	)	$	8,775,441

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 December 31, 2016 and 2015:

	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	)

	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, 2015
Federal agencies:
Mortgage-backed securities	$	1,658,516	$	(11,341	)	$	84,147	$	(2,367	)	$	1,742,663	$	(13,708	)
Other agencies	37,982		(51		)	—		—			37,982		(51		)
Total Federal agency securities	1,696,498		(11,392		)	84,147		(2,367		)	1,780,645		(13,759		)
Municipal securities	570,916		(15,992		)	248,204		(11,113		)	819,120		(27,105		)
Asset-backed securities	552,275		(5,791		)	207,639		(34,390		)	759,914		(40,181		)
Corporate debt	167,144		(1,673		)	21,965		(881		)	189,109		(2,554		)
Other securities	772		(28		)	1,476		(24		)	2,248		(52		)
Total temporarily impaired securities	$	2,987,605	$	(34,876	)	$	563,431	$	(48,775	)	$	3,551,036	$	(83,651	)

At December 31, 2016, 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 $5.0 billion. There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10% of shareholders’ equity at December 31, 2016.

The following table is a summary of realized securities gains and losses for the years ended December 31, 2016, 2015, and 2014:

136

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Gross gains on sales of securities	$	23,095		$	6,730		$	17,729
Gross (losses) on sales of securities	(21,060		)	(3,546		)	(175		)
Net gain (loss) on sales of securities	$	2,035		$	3,184		$	17,554

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.

OTTI totaling $2 million was recorded on two direct purchase municipal instruments during 2016. Direct purchase municipal instruments are underwritten and managed by Huntington. At December 31, 2016, $2.8 billion of direct purchase municipal instruments were managed by Huntington.

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 December 31, 2016 and 2015. 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.

137

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		15,307		(3,287		)	BB	19/21	7	13	54
MM Comm III	4,573		4,369		3,618		(751		)	BB	5/8	5	6	38
Pre TSL IX (1)	5,000		3,955		3,253		(702		)	C	27/37	16	9	8
Pre TSL XI (1)	25,000		19,576		15,767		(3,809		)	C	43/53	14	8	14
Pre TSL XIII (1)	27,530		19,106		17,146		(1,960		)	C	45/54	9	11	29
Reg Diversified (1)	25,500		4,610		1,752		(2,858		)	D	20/37	35	8	—
Tropic III	31,000		31,000		19,160		(11,840		)	BB	28/37	16	7	42
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)
Total at December 31, 2015	$	179,574	$	131,991	$	100,338	$	(31,654	)

(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 periods ended December 31, 2016, 2015, and 2014, the following table summarizes by security type, the total OTTI losses recognized in the Consolidated Statements of Income for securities evaluated for impairment as described above:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—		$	(2,440	)	$	—
Municipal Securities	(2,119		)	—			—
Total available-for-sale and other securities	$	(2,119	)	$	(2,440	)	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the years ended December 31, 2016, and 2015 as follows:

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015
Balance, beginning of year	$	18,368		$	30,869
Reductions from sales	(8,690		)	(14,941		)
Credit losses not previously recognized	2,119			—
Additional credit losses	—			2,440
Balance, end of year	$	11,797		$	18,368

To reduce asset risk weighting and credit risk in the investment portfolio, the remainder of the private-label CMO portfolio was sold in the 2015 third quarter.  Huntington recognized OTTI on this portfolio in prior periods.

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6. 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.

During 2016 and 2015, Huntington transferred federal agencies, mortgage-backed securities and other agency securities totaling $2.9 billion and $3.0 billion, respectively from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. At the time of the transfer, $58 million of unrealized net losses and $6 million of unrealized net gains were recognized in OCI, respectively. The amounts in OCI will be recognized in earnings over the remaining life of the securities as an offset to the adjustment of yield in a manner consistent with the amortization of the premium on the same transferred securities, resulting in an immaterial impact on net income.

Listed below are the contractual maturities of held-to-maturity securities at December 31, 2016 and December 31, 2015:

	December 31, 2016				December 31, 2015
(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	41,261		40,791		25,909		25,227
After 10 years	7,157,083		7,139,943		5,506,592		5,484,407
Total mortgage-backed securities	7,198,344		7,180,734		5,532,501		5,509,634
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	398,341		399,452		283,960		284,907
After 10 years	204,083		201,180		336,092		334,004
Total other agencies	602,424		600,632		620,052		618,911
Total U.S. Government backed agencies	7,800,768		7,781,366		6,152,553		6,128,545
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,171		5,902		7,037		6,913
Total municipal securities	6,171		5,902		7,037		6,913
Total held-to-maturity securities	$	7,806,939	$	7,787,268	$	6,159,590	$	6,135,458

The following table provides amortized cost, gross unrealized gains and losses, and fair value by investment category at December 31, 2016 and 2015:

			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

139

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
Federal agencies:
Mortgage-backed securities	$	5,532,501	$	14,637	$	(37,504	)	$	5,509,634
Other agencies	620,052		1,645		(2,786		)	618,911
Total U.S. Government backed agencies	6,152,553		16,282		(40,290		)	6,128,545
Municipal securities	7,037		—		(124		)	6,913
Total held-to-maturity securities	$	6,159,590	$	16,282	$	(40,414	)	$	6,135,458

The following tables provide detail on HTM securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position at December 31, 2016 and 2015:

	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	)

	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, 2015
Federal agencies:
Mortgage-backed securities	$	3,692,890	$	(25,418	)	$	519,872	$	(12,086	)	$	4,212,762	$	(37,504	)
Other agencies	425,410		(2,689		)	6,647		(97		)	432,057		(2,786		)
Total U.S. Government backed securities	4,118,300		(28,107		)	526,519		(12,183		)	4,644,819		(40,290		)
Municipal securities	—		—			6,913		(124		)	6,913		(124		)
Total temporarily impaired securities	$	4,118,300	$	(28,107	)	$	533,432	$	(12,307	)	$	4,651,732	$	(40,414	)

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 December 31, 2016 and 2015, The Company evaluated held-to-maturity securities with unrealized losses for impairment and concluded no OTTI is required.

7. LOAN SALES AND SECURITIZATIONS

Residential Mortgage Portfolio

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Residential mortgage loans sold with servicing retained	$	3,632,024	$	3,322,723	$	2,330,060
Pretax gains resulting from above loan sales (1)	96,585		83,148		57,590

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(1) Recorded in mortgage banking income.

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the years ended December 31, 2016 and 2015:

Fair Value Method

(dollar amounts in thousands)	2016			2015
Fair value, beginning of year	$	17,585		$	22,786
Change in fair value during the period due to:
Time decay (1)	(950		)	(1,295		)
Payoffs (2)	(1,827		)	(3,031		)
Changes in valuation inputs or assumptions (3)	(1,061		)	(875		)
Fair value, end of year	$	13,747		$	17,585
Weighted-average life (years)	5.7			4.6

(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

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	143,133		$	132,812
New servicing assets created	37,813			35,407
Servicing assets acquired	15,317			—
Impairment recovery (charge)	1,918			(2,732		)
Amortization and other	(25,715		)	(22,354		)
Carrying value, end of year	$	172,466		$	143,133
Fair value, end of year	$	172,779		$	143,435
Weighted-average life (years)	7.2			5.9

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 economically 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 to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	10.90	%	$	(501	)	$	(970	)	14.70	%	$	(864	)	$	(1,653	)
Spread over forward interest rate swap rates	536 bps		(454		)	(879		)	539 bps		(559		)	(1,083		)

141

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	7.80	%	$	(4,510	)	$	(8,763	)	11.10	%	$	(5,543	)	$	(10,648	)
Spread over forward interest rate swap rates	1,173 bps		(5,259		)	(10,195		)	875 bps		(4,662		)	(9,017		)

Total servicing, late and other ancillary fees included in mortgage banking income was $50 million, $47 million, and $44 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of residential mortgage loans serviced for third parties was $18.9 billion, $16.2 billion, and $15.6 billion at December 31, 2016, 2015, and 2014, respectively.

Automobile Loans and Leases

The following table summarizes activity relating to automobile loans securitized with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015	2014 (1)
UPB of automobile loans securitized with servicing retained	$	1,500,000	750,000	—
Net proceeds received in loan securitizations	1,551,679		780,117	—
Servicing asset recognized in loan securitizations (2)	15,670		11,180	—
Pretax gains resulting from above loan securitizations (3)	5,632		5,333	—

(1) Huntington did not sell or securitize any automobile loans in 2014.

(2) Recorded in servicing rights.

(3) Recorded in gain on sale of 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 years ended December 31, 2016, and 2015, and the fair value at the end of each period were as follows:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	8,771		$	6,898
New servicing assets created	15,670			11,180
Amortization and other	(6,156		)	(9,307		)
Carrying value, end of year	$	18,285		$	8,771
Fair value, end of year	$	18,388		$	9,127
Weighted-average life (years)	4.2			3.2

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at December 31, 2016, and 2015 follows:

142

	December 31, 2016								December 31, 2015
			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)	19.98	%	$	(1,047	)	$	(2,026	)	18.36	%	$	(500	)	$	(895	)
Spread over forward interest rate swap rates	500 bps		(26		)	(53		)	500 bps		(10		)	(19		)

Servicing income was $9 million, $5 million, and $8 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of automobile loans serviced for third parties was $1.7 billion, $0.9 billion, and $0.8 billion at December 31, 2016, 2015, and 2014, respectively.

Small Business Association (SBA) Portfolio

The following table summarizes activity relating to SBA loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
SBA loans sold with servicing retained	$	269,923	$	232,848	$	214,760
Pretax gains resulting from above loan sales (1)	20,516		18,626		24,579

(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 years ended December 31, 2016, and 2015:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	19,747		$	18,536
New servicing assets created	8,705			8,012
Amortization and other	(7,372		)	(6,801		)
Carrying value, end of year	$	21,080		$	19,747
Fair value, end of year	$	24,270		$	22,649
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 December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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	%	$	(324	)	$	(644	)	7.60	%	$	(313	)	$	(622	)
Discount rate	15.00		(1,270		)	(1,870		)	15.00		(610		)	(1,194		)

Servicing income was $9 million, $8 million, and $7 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of SBA loans serviced for third parties was $1.1 billion, $1.0 billion and $0.9 billion at December 31, 2016, 2015, and 2014, respectively.

8. GOODWILL AND OTHER INTANGIBLE ASSETS

Business segments are based on segment leadership structure, which reflects how segment performance is monitored and assessed. We have five major business segments: Consumer and Business Banking, Commercial Banking, Commercial Real Estate

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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.

A rollforward of goodwill by business segment for the years ended December 31, 2016 and 2015, is presented in the table below:

	Consumer &
	Business		Commercial							Home		Treasury/			Huntington
(dollar amounts in thousands)	Banking		Banking		CREVF		RBHPCG			Lending		Other			Consolidated
Balance, January 1, 2015	$	368,097	$	59,594	$	—	$	90,012		$	—	$	4,838		$	522,541
Goodwill acquired during the period	—		155,828		—		—			—		—			155,828
Adjustments	—		—		—		(1,500		)	—		—			(1,500		)
Balance, December 31, 2015	368,097		215,422		—		88,512			—		4,838			676,869
Goodwill acquired during the period	1,030,046		237,542		—		53,230			—		—			1,320,818
Adjustments	—		—		—		—			—		(4,838		)	(4,838		)
Balance, December 31, 2016	$	1,398,143	$	452,964	$	—	$	141,742		$	—	$	—		$	1,992,849

On August 16, 2016, Huntington completed its acquisition of FirstMerit in a stock and cash transaction valued at approximately $3.7 billion. In connection with the acquisition, the Company recorded $1.3 billion of goodwill, $310 million core deposit intangible asset and $95 million of other intangible assets. Huntington allocated goodwill recognized in the acquisition of FirstMerit to its existing operating segments. The allocation was performed using the ‘with and without’ approach, where an entity calculates the fair value of each segment before and after the acquisition, with the difference attributable to the fair value acquired via the acquisition. This method is most appropriate when multiple segments are expected to benefit from synergies realized in an acquisition. The results of the allocation are presented in the table above. For additional information on the acquisition, see Note 3 Acquisition of FirstMerit Corporation.

During the 2016 third quarter, Huntington reclassified $5 million of goodwill in the Treasury / Other segment related to a held for sale disposal group.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which was re-branded Huntington Technology Finance. As part of the transaction, Huntington recorded $156 million of goodwill and $8 million of other intangible assets.

During 2015, Huntington adjusted the goodwill in the RBHPCG segment related to a sale of HASI and HAA. The amount was adjusted based on relative fair value methodology.

Goodwill is not amortized but is evaluated for impairment on an annual basis at October 1 of each year or whenever events or changes in circumstances indicate the carrying value may not be recoverable. As a result of the 2014 first quarter reorganization in our reported business segments, goodwill was reallocated among the business segments. Immediately following the reallocation, impairment of $3 million was recorded in the Home Lending reporting segment. No impairment was recorded in 2016 or 2015.

At December 31, 2016 and 2015, Huntington’s other intangible assets consisted of the following:

(dollar amounts in thousands)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Value
December 31, 2016
Core deposit intangible	$	324,619		$	(26,778	)	$	297,841
Customer relationship	194,956		(1)	(90,383		)	104,573
Other	150			(106		)	44
Total other intangible assets	$	519,725		$	(117,267	)	$	402,458
December 31, 2015
Core deposit intangible	$	400,058		$	(384,606	)	$	15,452
Customer relationship	116,094			(76,656		)	39,438
Other	25,164			(25,076		)	88
Total other intangible assets	$	541,316		$	(486,338	)	$	54,978

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(1) During the 2016 third quarter, certain commercial merchant relationships, which resulted in an intangible of $14 million, were contributed to a joint venture in which Huntington holds a minority interest.

The estimated amortization expense of other intangible assets for the next five years is as follows:

(dollar amounts in thousands)	Amortization Expense
2017	$	56,333
2018	53,161
2019	50,446
2020	42,291
2021	39,783

9. PREMISES AND EQUIPMENT

Premises and equipment were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016			2015
Land and land improvements	$	199,193		$	140,414
Buildings	523,181			366,963
Leasehold improvements	265,384			246,222
Equipment	721,014			647,769
Total premises and equipment	1,708,772			1,401,368
Less accumulated depreciation and amortization	(893,264		)	(780,828		)
Net premises and equipment	$	815,508		$	620,540

Depreciation and amortization charged to expense and rental income credited to net occupancy expense for the three years ended December 31, 2016, 2015, and 2014 were:

(dollar amounts in thousands)	2016		2015		2014
Total depreciation and amortization of premises and equipment	$	125,856	$	85,805	$	82,296
Rental income credited to occupancy expense	12,512		12,563		11,556

10. SHORT-TERM BORROWINGS

Borrowings with original maturities of one year or less are classified as short-term and were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016		2015
Federal funds purchased and securities sold under agreements to repurchase	$	1,248,089	$	601,272
Federal Home Loan Bank advances	2,425,000		—
Other borrowings	19,565		14,007
Total short-term borrowings	$	3,692,654	$	615,279

Other borrowings consist of borrowings from the Treasury and other notes payable.

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11. LONG-TERM DEBT

Huntington’s long-term debt consisted of the following:

	At December 31,
(dollar amounts in thousands)	2016		2015
The Parent Company:
Senior Notes:
3.19% Huntington Bancshares Incorporated medium-term notes due 2021	$	972,625	$	—
2.33% Huntington Bancshares Incorporated senior note due 2022	953,674		—
2.64% Huntington Bancshares Incorporated senior note due 2018	399,278		399,169
Subordinated Notes:
7.00% Huntington Bancshares Incorporated subordinated notes due 2020	319,857		326,379
3.55% Huntington Bancshares Incorporated subordinated notes due 2023	248,156		—
Sky Financial Capital Trust IV 2.40% junior subordinated debentures due 2036 (1)	74,320		74,320
Sky Financial Capital Trust III 2.40% junior subordinated debentures due 2036 (1)	72,165		72,165
Huntington Capital I Trust Preferred 1.70% junior subordinated debentures due 2027 (2)	68,720		110,706
Huntington Capital II Trust Preferred 1.06% junior subordinated debentures due 2028 (3)	31,576		54,030
Camco Statutory Trust I 2.30% due 2037 (4)	4,244		4,212
Total notes issued by the parent	3,144,615		1,040,981
The Bank:
Senior Notes:
2.24% Huntington National Bank senior notes due 2018	843,568		841,313
2.10% Huntington National Bank senior notes due 2018	747,170		745,894
1.75% Huntington National Bank senior notes due 2018	499,732		501,006
1.43% Huntington National Bank senior note due 2019	499,686		498,678
2.23% Huntington National Bank senior note due 2017	499,445		500,416
2.43% Huntington National Bank senior notes due 2020	498,448		498,185
2.97% Huntington National Bank senior notes due 2020	495,088		495,998
1.42% Huntington National Bank senior notes due 2017 (5)	250,000		250,000
5.04% Huntington National Bank medium-term notes due 2018	36,351		37,469
1.31% Huntington National Bank senior note due 2016	—		498,360
1.40% Huntington National Bank senior note due 2016	—		349,399
Subordinated Notes:
3.86% Huntington National Bank subordinated notes due 2026	239,293		—
6.67% Huntington National Bank subordinated notes due 2018	131,910		136,227
5.45% Huntington National Bank subordinated notes due 2019	81,155		83,833
5.59% Huntington National Bank subordinated notes due 2016	—		103,357
Total notes issued by the bank	4,821,846		5,540,135
FHLB Advances:
3.47% weighted average rate, varying maturities greater than one year	7,540		7,800
Other:
Huntington Technology Finance nonrecourse debt, 3.43% effective interest rate, varying maturities	277,523		301,577
Huntington Technology Finance ABS Trust 2014 1.70% due 2020	57,494		123,577
Huntington Technology Finance ABS Trust 2012 1.79% due 2017	—		27,153
Other	141		141
Total other	335,158		452,448
Total long-term debt	$	8,309,159	$	7,041,364

(1) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.400%

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(2) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.70%

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.625%

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.33%.

(5) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.425%.

Amounts above are net of unamortized discounts and adjustments related to hedging with derivative financial instruments. The derivative instruments, principally interest rate swaps, are used to hedge the fair values of certain fixed-rate debt by converting the debt to a variable rate. See Note 18 for more information regarding such financial instruments.

In August 2016, Parent Company and Bank subordinated debt with a fair value totaling $520 million was acquired by Huntington as part of the FirstMerit acquisition. See Note 3 Acquisition of FirstMerit Corporation for additional information on the method used to determine fair value.

In August 2016, Huntington issued $1.0 billion of senior notes at 99.849% of face value. The senior notes mature on January 14, 2022 and have a fixed coupon rate of 2.3%. At December 31, 2016, debt issuance costs of $5 million related to the note are reported on the balance sheet as a direct deduction from the face amount of the note.

In March 2016, Huntington issued $1.0 billion of senior notes at 99.803% of face value. The senior notes mature on March 14, 2021 and have a fixed coupon rate of 3.15%. At December 31, 2016, debt issuance costs of $5 million related to the note are reported on the balance sheet as a direct deduction from the face amount of the note.

In November 2015, the Bank issued $850 million of senior notes at 99.88% of face value. The senior bank note issuances mature on November 6, 2018 and have a fixed coupon rate of 2.20%. The senior notes may be redeemed one month prior to maturity date at 100% of principal plus accrued and unpaid interest.

In August 2015, the Bank issued $500 million of senior notes at 99.58% of face value. The senior bank note issuances mature on August 20, 2020 and have a fixed coupon rate of 2.88%.

In June 2015, the Bank issued $750 million of senior notes at 99.71% of face value. The senior bank note issuances mature on June 30, 2018 and have a fixed coupon rate of 2.00%.

On March 31, 2015, Huntington completed its acquisition of Huntington Technology Finance. As part of the acquisition, Huntington assumed $293 million of non-recourse debt with various financial institutions and maturity dates. The effective interest rate on the non-recourse debt is 3.20%. Huntington also assumed $255 million of debt associated with two securitizations. The securitization debt has various classes and associated maturity dates and has an effective interest rate of 1.70%.

In February 2015, the Bank issued $500 million of senior notes at 99.86% of face value. The senior bank note issuances mature on February 26, 2018 and have a fixed coupon rate of 1.70%. Also, in February 2015, the Bank issued $500 million of senior notes at 99.87% of face value. The senior bank note issuances mature on April 1, 2020 and have a fixed coupon rate of 2.40%. Both senior note issuances may be redeemed one month prior to the maturity date at 100% of principal plus accrued and unpaid interest.

Long-term debt maturities for the next five years and thereafter are as follows:

(dollar amounts in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
The Parent Company:
Senior notes	$	—	$	400,000	$	—	$	—	$	1,000,000	$	1,000,000	$	2,400,000
Subordinated notes	—		—		—		300,000		—		503,463		803,463
The Bank:
Senior notes	750,000		2,135,000		500,000		1,000,000		—		—		4,385,000
Subordinated notes	—		125,539		75,716		—		—		250,000		451,255
FHLB Advances	100		1,115		325		2,368		—		3,769		7,677
Other	64,288		84,357		62,048		81,551		42,187		726		335,157
Total	$	814,388	$	2,746,011	$	638,089	$	1,383,919	$	1,042,187	$	1,757,958	$	8,382,552

These maturities are based upon the par values of the long-term debt.

The terms of the long-term debt obligations contain various restrictive covenants including limitations on the acquisition of additional debt in excess of specified levels, dividend payments, and the disposition of subsidiaries. As of December 31, 2016, Huntington was in compliance with all such covenants.

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12. OTHER COMPREHENSIVE INCOME

The components of Huntington’s OCI in the three years ended December 31, 2016, 2015, and 2014, were as follows:

	2016
	Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	905		$	(320	)	$	585
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(203,048		)	70,599			(132,449		)
Less: Reclassification adjustment for net losses (gains) included in net income	(107,145		)	37,884			(69,261		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(309,288		)	108,163			(201,125		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	171			(60		)	111
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	2,381			(833		)	1,548
Less: Reclassification adjustment for net (gains) losses included in net income	(360		)	126			(234		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	2,021			(707		)	1,314
Net change in pension and other post-retirement obligations	38,218			(13,376		)	24,842
Total other comprehensive income (loss)	$	(268,878	)	$	94,020		$	(174,858	)

	2015
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	19,606		$	(6,933	)	$	12,673
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(26,021		)	9,108			(16,913		)
Less: Reclassification adjustment for net losses (gains) included in net income	(3,901		)	1,365			(2,536		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(10,316		)	3,540			(6,776		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	(474		)	166			(308		)
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	12,966			(4,538		)	8,428
Less: Reclassification adjustment for net (gains) losses included in net income	(220		)	77			(143		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	12,746			(4,461		)	8,285
Net change in pension and other post-retirement obligations	(7,795		)	2,728			(5,067		)
Total other comprehensive income (loss)	$	(5,839	)	$	1,973		$	(3,866	)

	2014
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	13,583		$	(4,803	)	$	8,780
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	86,618			(30,914		)	55,704
Less: Reclassification adjustment for net gains (losses) included in net income	(15,559		)	5,446			(10,113		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	84,642			(30,271		)	54,371
Net change in unrealized holding gains (losses) on available-for-sale equity securities	295			(103		)	192
Unrealized gains and losses on derivatives used in cash flow hedging relationships arising during the period	14,141			(4,949		)	9,192
Less: Reclassification adjustment for net losses (gains) losses included in net income	(3,971		)	1,390			(2,581		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	10,170			(3,559		)	6,611
Net change in pension and post-retirement obligations	(106,857		)	37,400			(69,457		)
Total other comprehensive income (loss)	$	(11,750	)	$	3,467		$	(8,283	)

Activity in accumulated OCI for the two years ended December 31, were as follows:

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(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, 2014	$	15,137		$	484		$	(12,233	)	$	(225,680	)	$	(222,292	)
Other comprehensive income before reclassifications	(4,240		)	(308		)	8,428			—			3,880
Amounts reclassified from accumulated OCI to earnings	(2,536		)	—			(143		)	(5,067		)	(7,746		)
Period change	(6,776		)	(308		)	8,285			(5,067		)	(3,866		)
December 31, 2015	8,361			176			(3,948		)	(230,747		)	(226,158		)
Other comprehensive income before reclassifications	(131,864		)	111			1,548			—			(130,205		)
Amounts reclassified from accumulated OCI to earnings	(69,261		)	—			(234		)	24,842			(44,653		)
Period change	(201,125		)	111			1,314			24,842			(174,858		)
December 31, 2016	$	(192,764	)	$	287		$	(2,634	)	$	(205,905	)	$	(401,016	)

(1) Amount at December 31, 2016 includes $(82) million of net unrealized losses on securities transferred from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. The net unrealized losses 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 Consolidated Statements of Income for the years ended December 31, 2016 and 2015:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
(dollar amounts in thousands)	2016			2015
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	91,058		$	(144	)	Interest income—held-to-maturity securities—taxable
Realized gain (loss) on sale of securities	18,206			6,485			Noninterest income—net gains (losses) on sale of securities
OTTI recorded	(2,119		)	(2,440		)	Noninterest income—net gains (losses) on sale of securities
Total before tax	107,145			3,901
Tax (expense) benefit	(37,884		)	(1,365		)
Net of tax	$	69,261		$	2,536
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	361		$	210		Interest and fee income—loans and leases
Interest rate contracts	(1		)	10			Noninterest expense—other income
Total before tax	360			220
Tax (expense) benefit	(126		)	(77		)
Net of tax	$	234		$	143
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(40,186	)	$	5,827		Noninterest expense—personnel costs
Net periodic benefit costs	1,968			1,968			Noninterest expense—personnel costs
Total before tax	(38,218		)	7,795
Tax (expense) benefit	13,376			(2,728		)
Net of tax	$	(24,842	)	$	5,067

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13. SHAREHOLDERS’ EQUITY

The following is a summary of Huntington's non-cumulative perpetual preferred stock outstanding as of December 31, 2016.

(dollar amounts in thousands, except per share amounts)
Series	Issuance Date	Total Shares Outstanding	Carrying Amount		Dividend Rate		Earliest Redemption Date
Series A	11/14/2008	362,506	362,506		8.50	%	N/A
Series B	12/28/2011	35,500	23,785		3-mo. LIBOR + 270 bps		1/15/2017
Series D	3/21/2016	400,000	386,348		6.25	%	7/15/2021
Series D	5/5/2016	200,000	198,588		6.25	%	7/15/2021
Series C	8/16/2016	100,000	100,000		5.875	%	1/15/2022
Total		1,098,006	$	1,071,227

Each series of preferred stock has a liquidation value and redemption price per share of $1,000, plus any declared and unpaid dividends. All preferred stock, with the exception of Series A, has no stated maturity and redemption is solely at the option of the Company. Under current rules, any redemption of the preferred stock is subject to prior approval of the FRB.

Each share of the Series A Preferred Stock is non-voting and may be converted at any time, at the option of the holder, into 83.668 shares of common stock of Huntington, which represents an approximate initial conversion price of $11.95 per share of common stock. Since April 15, 2013, at the option of Huntington, the Series A Preferred Stock is subject to mandatory conversion into Huntington’s common stock at the prevailing conversion rate if the closing price of Huntington’s common stock exceeds 130% of the conversion price for 20 trading days during any 30 consecutive trading-day period. At the option of the holder, one share was converted to common stock during the fourth quarter of 2015.

Preferred Series C Stock issued and outstanding

In connection with the FirstMerit acquisition, during the 2016 third quarter, Huntington issued $100 million of preferred stock. As part of this transaction, Huntington issued 4,000,000 depositary shares, each representing a 1/40th ownership interest in a share of 5.875% Series C Non-Cumulative Perpetual Preferred Stock (Preferred C Stock), par value $0.01 per share, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share). Each holder of a depositary share, will be entitled to all proportional rights and preferences of the Preferred C Stock (including dividend, voting, redemption, and liquidation rights).

Dividends on the Preferred C Stock will be non-cumulative and payable quarterly in arrears, when, as and if authorized by the Company's board of directors or a duly authorized committee of the board and declared by the Company, at an annual rate of 5.875% per year on the liquidation preference of $1,000 per share, equivalent to $25 per depositary share. The dividend payment dates will be the fifteenth day of each January, April, July and October, commencing on October 15, 2016, or the next business day if any such day is not a business day.

The Preferred C Stock is perpetual and has no maturity date. Huntington may redeem the Preferred C Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after October 15, 2021 or (ii) in whole but not in part, within 90 days following a regulatory capital treatment event, in each case, at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends, without regard to any undeclared dividends, on the Series C Preferred Stock prior to the date fixed for redemption. If Huntington redeems the Preferred C Stock, the depositary will redeem a proportional number of depositary shares. Neither the holders of Preferred C Stock nor holders of depositary shares will have the right to require the redemption or repurchase of the Preferred C Stock or the depositary shares. Any redemption of the Preferred C Stock is subject to Huntington's receipt of any required prior approval by the Board of Governors of the Federal Reserve System.

Preferred Series D Stock issued and outstanding

During the 2016 first and second quarter, Huntington issued $400 million and $200 million of preferred stock, respectively. As part of these transactions, Huntington issued 24,000,000 depositary shares, each representing a 1/40th ownership interest in a share of 6.250% Series D Non-Cumulative Perpetual Preferred Stock (Preferred D Stock), par value $0.01 per share, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share). Each holder of a depositary share, will be entitled to all proportional rights and preferences of the Preferred D Stock (including dividend, voting, redemption, and liquidation rights). Costs of $15 million related to the issuance of the Preferred D Stock are reported as a direct deduction from the face amount of the stock.

Dividends on the Preferred D Stock will be non-cumulative and payable quarterly in arrears, when, as and if authorized by the Company's board of directors or a duly authorized committee of the board and declared by the Company, at an annual rate of 6.25% per year on the liquidation preference of $1,000 per share, equivalent to $25 per depositary share. The dividend payment dates will be

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the fifteenth day of each January, April, July and October, commencing on July 15, 2016, or the next business day if any such day is not a business day.

The Preferred D Stock is perpetual and has no maturity date. Huntington may redeem the Preferred D Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after April 15, 2021 or (ii) in whole but not in part, within 90 days following a regulatory capital treatment event, in each case, at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends and, in the case of a redemption following a regulatory capital treatment event, the prorated portion of dividends, whether or not declared, for the dividend period in which such redemption occurs. Notwithstanding the foregoing, pursuant to a commitment Huntington made to the Federal Reserve, for at least five years after the date of the issuance of depositary shares offered by the prospectus supplement, Huntington will not redeem or repurchase the Preferred D Stock, whether issued on March 21, 2016 or on the date of the issuance of the depositary shares offered by the prospectus supplement. If Huntington redeems the Preferred D Stock, the depositary will redeem a proportional number of depositary shares. Neither the holders of Preferred D Stock nor holders of depositary shares will have the right to require the redemption or repurchase of the Preferred D Stock or the depositary shares. Any redemption of the Preferred D Stock is subject to Huntington's receipt of any required prior approval by the Board of Governors of the Federal Reserve System.

2016 Comprehensive Capital Analysis and Review (CCAR)

On June 29, 2016, Huntington announced that the Federal Reserve did not object to the proposed capital actions included in Huntington's capital plan submitted to the Federal Reserve in April 2016 as part of the 2016 CCAR. These actions included an increase in the quarterly dividend per common share to $0.08, starting in the fourth quarter of 2016. Huntington’s capital plan also included the issuance of capital in connection with the acquisition of FirstMerit Corporation and continues the previously announced suspension of the Company’s 2015 share repurchase program.

2015 Share Repurchase Program

During 2015, Huntington repurchased a total of 23.0 million shares of common stock at a weighted average share price of $10.93.

14. 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 stock (See Note 13). 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 each of the three years ended December 31 was as follows:

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	Year ended December 31,
(dollar amounts in thousands, except per share amounts)	2016			2015			2014
Basic earnings per common share:
Net income	$	711,821		$	692,957		$	632,392
Preferred stock dividends	(65,274		)	(31,873		)	(31,854		)
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Basic earnings per common share:	$	0.72		$	0.82		$	0.73
Diluted earnings per common share
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Effect of assumed preferred stock conversion	—			—			—
Net income applicable to diluted earnings per share	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Dilutive potential common shares:
Stock options and restricted stock units and awards	11,728			11,633			11,421
Shares held in deferred compensation plans	2,486			1,912			1,420
Other	138			172			323
Dilutive potential common shares:	14,352			13,717			13,164
Total diluted average common shares issued and outstanding	918,790			817,129			833,081
Diluted earnings per common share	$	0.70		$	0.81		$	0.72

Approximately 3.1 million, 1.6 million, and 2.6 million options to purchase shares of common stock outstanding at the end of December 31, 2016, 2015, and 2014, respectively, were not included in the computation of diluted earnings per share because the effect would be antidilutive.

15. SHARE-BASED COMPENSATION

Huntington sponsors nonqualified and incentive share based compensation plans. These plans provide for the granting of stock options and other awards to officers, directors, and other employees. Compensation costs are included in personnel costs on the Consolidated Statements of Income. Stock options are granted at the closing market price on the date of the grant. Options granted typically vest ratably over four years or when other conditions are met. Stock options, which represented a portion of the grant values, have no intrinsic value until the stock price increases. Options granted on or after May 1, 2015 have a contractual term of ten years. All options granted on or before April 30, 2015 have a contractual term of seven years.

2015 Long-Term Incentive Plan

In 2015, shareholders approved the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan (the 2015 Plan). Shares remaining under the 2012 Plan have been incorporated into the 2015 Plan and reduced the full number of shares covered by all awards. Accordingly, the total number of shares authorized for awards under the 2015 Plan is 30 million shares. At December 31, 2016, 16 million shares from the Plan were available for future grants. Huntington issues shares to fulfill stock option exercises and restricted stock unit and award vesting from available authorized common shares. At December 31, 2016, Huntington believes there are adequate authorized common shares to satisfy anticipated stock option exercises and restricted stock unit and award vesting in 2017.

Huntington uses the Black-Scholes option pricing model to value options in determining the share-based compensation expense. Forfeitures are estimated at the date of grant based on historical rates, and updated as necessary, and reduce the compensation expense recognized. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the date of grant. The expected dividend yield is based on the dividend rate and stock price at the date of the grant. Expected volatility is based on the estimated volatility of Huntington’s stock over the expected term of the option.

The following table presents the weighted average assumptions used in the option-pricing model at the grant date for options granted in the three years ended December 31, 2016, 2015, and 2014:

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	2016			2015			2014
Assumptions
Risk-free interest rate	1.63		%	2.13		%	1.69		%
Expected dividend yield	3.18			2.57			2.61
Expected volatility of Huntington’s common stock	30.0			29.0			32.3
Expected option term (years)	6.5			6.5			5
Weighted-average grant date fair value per share	$	2.17		$	2.57		$	2.13

The following table presents total share-based compensation expense and related tax benefit for the three years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016		2015		2014
Share-based compensation expense	$	65,608	$	51,415	$	43,666
Tax benefit	22,496		17,618		14,779

Huntington’s stock option activity and related information for the year ended December 31, 2016, was as follows:

(amounts in thousands, except years and per share amounts)	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2016	16,121		$	7.25
Granted	1,596		10.06
Exercised	(2,372	)	5.90
Forfeited/expired	(471	)	15.73
Outstanding at December 31, 2016	14,874		$	7.50	3.6	$	85,159
Expected to vest (1)	3,656		$	9.59	7.1	$	13,267
Exercisable at December 31, 2016	10,985		$	6.75	2.4	$	71,114

(1) The number of options expected to vest includes an estimate of 233 thousand shares expected to be forfeited.

The aggregate intrinsic value represents the amount by which the fair value of underlying stock exceeds the “in-the-money” option exercise price. For the years ended December 31, 2016, 2015, and 2014, cash received for the exercises of stock options was $14 million, $26 million and $21 million, respectively. The tax benefit realized for the tax deductions from option exercises totaled $3 million, $7 million and $4 million in 2016, 2015, and 2014, respectively.

Huntington also grants restricted stock, restricted stock units, performance share awards, and other stock-based awards. Restricted stock units and awards are issued at no cost to the recipient, and can be settled only in shares at the end of the vesting period. Restricted stock awards provide the holder with full voting rights and cash dividends during the vesting period. Restricted stock units do not provide the holder with voting rights or cash dividends during the vesting period, but do accrue a dividend equivalent that is paid upon vesting, and are subject to certain service restrictions. Performance share awards are payable contingent upon Huntington achieving certain predefined performance objectives over the three-year measurement period. The fair value of these awards is the closing market price of Huntington’s common stock on the grant date.

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The following table summarizes the status of Huntington’s restricted stock units and performance share awards as of December 31, 2016, and activity for the year ended December 31, 2016:

	Restricted Stock Awards				Restricted Stock Units				Performance Share Awards
(amounts in thousands, except per share amounts)	Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share
Nonvested at January 1, 2016	7		$	9.53	12,170		$	9.11	2,893		$	8.99
Granted	—		—		6,526		9.69		981		9.04
Assumed	916		9.68		—		—		807		9.68
Vested	(241	)	9.68		(3,142	)	7.91		(1,307	)	8.05
Forfeited	(26	)	9.68		(821	)	9.52		(67	)	9.78
Nonvested at December 31, 2016	656		$	9.68	14,733		$	9.61	3,307		$	9.63

The weighted-average grant date fair value of nonvested shares granted for the years ended December 31, 2016, 2015, and 2014 were $9.59, $10.86, and $9.09, respectively. The total fair value of awards vested during the years ended December 31, 2016, 2015, and 2014 was $31 million, $30 million, and $26 million, respectively. As of December 31, 2016, the total unrecognized compensation cost related to nonvested awards was $81 million with a weighted-average expense recognition period of 2.3 years.

16. BENEFIT PLANS

Huntington sponsors the Plan, 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. Although not required, Huntington made a $150 million contribution to the Plan in the third quarter of 2016.

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 any employee retiring on or after January 1, 1993, post-retirement healthcare benefits are based upon the employee’s number of months of service and are limited to the actual cost of coverage. Life insurance benefits are a percentage of the employee’s base salary at the time of retirement, with a maximum of $50,000 of coverage. The employer paid portion of the post-retirement health and life insurance plan was eliminated for employees retiring on and after March 1, 2010. Eligible employees retiring on and after March 1, 2010, who elect retiree medical coverage, will pay the full cost of this coverage. Huntington will not provide any employer paid life insurance to employees retiring on and after March 1, 2010. Eligible employees will be able to convert or port their existing life insurance at their own expense under the same terms that are available to all terminated employees.

On January 1, 2015, Huntington terminated the company sponsored retiree health care plan for Medicare eligible retirees and their dependents. Instead, Huntington will partner with a third-party to assist the retirees and their dependents in selecting individual policies from a variety of carriers on a private exchange. This plan amendment resulted in a measurement of the liability at the approval date. The result of the measurement was a $5 million reduction of the liability and increase in accumulated other comprehensive income. It will also result in a reduction of expense over the estimated life of plan participants.

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016 and 2015, and the net periodic benefit cost for the years then ended:

154

	Pension Benefits				Post-Retirement Benefits
	2016		2015		2016		2015
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.38	%	4.54	%	3.64	%	3.81	%
Rate of compensation increase	N/A		N/A		N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (1)	4.54		4.12		3.81		3.73
Expected return on plan assets	6.75		7.00		N/A		N/A
Rate of compensation increase	N/A		N/A		N/A		N/A
N/A—Not Applicable

(1) The 2015 post-retirement benefit expense was remeasured as of September 30, 2015, for the purchase of life insurance contracts for participants due a death benefit. The discount rate was 3.72% from January 1, 2015 to September 30, 2015, and was changed to 3.77% for the period from September 30, 2015 to December 31, 2015.

The expected long-term rate of return on plan assets is an assumption reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected benefit obligation. The expected long-term rate of return is established at the beginning of the plan year based upon historical returns and projected returns on the underlying mix of invested assets.

The following table reconciles the beginning and ending balances of the benefit obligation of the Plan and the post-retirement benefit plan with the amounts recognized in the consolidated balance sheets at December 31:

	Pension Benefits						Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2016			2015
Projected benefit obligation at beginning of measurement year	$	754,714		$	799,594		$	8,025		$	15,963
Changes due to:
Service cost	4,100			1,830			—			—
Interest cost	26,992			31,937			219			506
Benefits paid	(18,306		)	(17,246		)	(1,915		)	(2,211		)
Settlements	(21,684		)	(27,976		)	—			(6,993		)
Medicare subsidies	—			—			—			117
Actuarial assumptions and gains and losses	(9,470		)	(33,425		)	963			643
Total changes	(18,368		)	(44,880		)	(733		)	(7,938		)
Projected benefit obligation at end of measurement year	$	736,346		$	754,714		$	7,292		$	8,025

The following table reconciles the beginning and ending balances of the fair value of Plan assets at the December 31, 2016 and 2015 measurement dates:

	Pension Benefits
(dollar amounts in thousands)	2016			2015
Fair value of plan assets at beginning of measurement year	$	594,217		$	653,013
Changes due to:
Actual return on plan assets	39,895			(16,122		)
Employer Contributions	150,000			—
Settlements	(20,081		)	(25,428		)
Benefits paid	(18,306		)	(17,246		)
Total changes	151,508			(58,796		)
Fair value of plan assets at end of measurement year	$	745,725		$	594,217

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Huntington’s accumulated benefit obligation under the Plan was $736 million and $755 million at December 31, 2016 and 2015. As of December 31, 2016, the difference between the accumulated benefit obligation and the fair value of Huntington's plan assets was $9 million and is recorded in noncurrent liabilities.

The following table shows the components of net periodic benefit costs recognized in the three years ended December 31, 2016:

	Pension Benefits									Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2014			2016			2015			2014
Service cost	$	4,100		$	1,830		$	1,740		$	—		$	—		$	—
Interest cost	26,992			31,937			32,398			219			506			856
Expected return on plan assets	(40,895		)	(44,175		)	(45,783		)	—			—			—
Amortization of prior service credit	—			—			—			(1,968		)	(1,968		)	(1,609		)
Amortization of (gain) / loss	7,459			7,934			5,767			(288		)	(401		)	(571		)
Settlements	9,495			12,645			11,200			—			(3,090		)	—
Benefit costs	$	7,151		$	10,171		$	5,322		$	(2,037	)	$	(4,953	)	$	(1,324	)

Included in benefit costs are $2 million, $4 million, and $2 million of plan expenses that were recognized in the three years ended December 31, 2016, 2015, and 2014. It is Huntington’s policy to recognize settlement gains and losses as incurred. Assuming no cash contributions are made to the Plan during 2017, Management expects net periodic pension benefit, excluding any expense of settlements, to approximate $14 million for 2017. The post-retirement medical and life subsidy was eliminated for anyone who retires on or after March 1, 2010. As such, there were no incremental net periodic post-retirement benefits costs associated with this plan.

The estimated transition obligation, prior service credit, and net actuarial loss for the plans that will be amortized from OCI into net periodic benefit cost over the next fiscal year is zero, $2 million, and a $7 million benefit, respectively.

At December 31, 2016 and 2015, The Huntington National Bank, as trustee, held all Plan assets. The Plan assets consisted of investments in a variety of corporate and government fixed income investments, money market funds, and mutual funds as follows:

	Fair Value
(dollar amounts in thousands)	2016				2015
Cash equivalents:
Federated-money market	$	16,087	2	%	$	15,590	3	%
Fixed income:
Corporate obligations	212,967		28		205,081		34
U.S. Government Obligations	157,764		21		64,456		11
Mutual funds-fixed income	27,851		4		32,874		6
U.S. Government Agencies	7,201		1		6,979		1
Equities:
Mutual funds-equities	134,832		18		136,026		23
Common stock	144,754		19		120,046		20
Preferred stock	4,778		1		—		—
Exchange Traded Funds	28,101		4		6,530		1
Limited Partnerships	11,390		2		6,635		1
Fair value of plan assets	$	745,725	100	%	$	594,217	100	%

Investments of the Plan are accounted for at cost on the trade date and are reported at fair value. The valuation methodologies used to measure the fair value of pension plan assets vary depending on the type of asset. For an explanation of the fair value hierarchy, refer to Note 1 “Significant Accounting Policies” under the heading “Fair Value Measurements”. At December 31, 2016, equities and money market funds are classified as Level 1; mutual funds-fixed income, corporate obligations, U.S. government obligations, and U.S. government agencies are classified as Level 2; and limited partnerships are classified as Level 3.

156

In general, investments of the Plan are exposed to various risks such as interest rate risk, credit risk, and overall market volatility. Due to the level of risk associated with certain investments, it is reasonably possible changes in the values of investments will occur in the near term and such changes could materially affect the amounts reported in the Plan assets.

The investment objective of the Plan is to maximize the return on Plan assets over a long-time period, while meeting the Plan obligations. At December 31, 2016, Plan assets were invested 2% in cash and cash equivalents, 44% in equity investments, and 54% in bonds, with an average duration of 14.2 years on bond investments. The estimated life of benefit obligations was 12.7 years. Although it may fluctuate with market conditions, Management has targeted a long-term allocation of Plan assets of 20% to 50% in equity investments and 80% to 50% in bond investments. The allocation of Plan assets between equity investments and fixed income investments will change from time to time with the allocation to fixed income investments increasing as the funding level increases.

At December 31, 2016, the following table shows when benefit payments were expected to be paid:

(dollar amounts in thousands)	Pension Benefits		Post- Retirement Benefits
2017	$	46,199	$	923
2018	45,077		761
2019	43,720		684
2020	41,827		640
2021	41,528		606
2022 through 2026	205,278		2,482

Although not required, a cash contribution can be made to the Plan up to the maximum deductible limit in the plan year. Anticipated contributions for 2017 to the post-retirement benefit plan are zero.

The 2017 healthcare cost trend rate is projected to be 6.8% for participants. This rate is assumed to decrease gradually until it reaches 4.5% in the year 2028 and remain at that level thereafter. Huntington updated the immediate healthcare cost trend rate assumption based on current market data and Huntington’s claims experience. This trend rate is expected to decline over time to a trend level consistent with medical inflation and long-term economic assumptions.

Huntington also sponsors other nonqualified retirement plans, the most significant being the SERP and the SRIP. The SERP provides certain former officers and directors, and the SRIP provides certain current and former officers and directors of Huntington and its subsidiaries with defined pension benefits in excess of limits imposed by federal tax law. At December 31, 2016 and 2015, Huntington has an accrued pension liability of $33 million and $34 million, respectively, associated with these plans. Pension expense for the plans was $1 million, $1 million, and $1 million in 2016, 2015, and 2014, respectively.

The following table presents the amounts recognized in the Consolidated Balance Sheets at December 31, 2016 and 2015, for all defined benefit plans:

(dollar amounts in thousands)	2016	2015
Noncurrent liabilities	169,657	192,734

The following tables present the amounts recognized in OCI as of December 31, 2016, 2015, and 2014, and the changes in accumulated OCI for the years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016			2015			2014
Net actuarial loss	$	(217,863	)	$	(243,984	)	$	(240,197	)
Prior service cost	11,958			13,237			14,517
Defined benefit pension plans	$	(205,905	)	$	(230,747	)	$	(225,680	)

157

	2016
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(354,997	)	$	124,250		$	(230,747	)
Net actuarial (loss) gain:
Amounts arising during the year	37,818			(13,236		)	24,582
Amortization included in net periodic benefit costs	2,368			(829		)	1,539
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(316,779	)	$	110,874		$	(205,905	)

	2015
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(347,202	)	$	121,522		$	(225,680	)
Net actuarial (loss) gain:
Amounts arising during the year	(25,520		)	8,931			(16,589		)
Amortization included in net periodic benefit costs	19,693			(6,892		)	12,801
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(354,997	)	$	124,250		$	(230,747	)

	2014
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(240,345	)	$	84,122		$	(156,223	)
Net actuarial (loss) gain:
Amounts arising during the year	(133,085		)	46,580			(86,505		)
Amortization included in net periodic benefit costs	19,056			(6,670		)	12,386
Prior service cost:
Amounts arising during the year	8,781			(3,073		)	5,708
Amortization included in net periodic benefit costs	(1,609		)	563			(1,046		)
Balance, end of year	$	(347,202	)	$	121,522		$	(225,680	)

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 Plan. For 2015 and 2016, a discretionary profit-sharing contribution equal to 1% of eligible participants’ annual base pay was awarded.

The following table shows the costs of providing the defined contribution plan:

	Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Defined contribution plan	$	36,107	$	31,896	$	31,110

The following table shows the number of shares, market value, and dividends received on shares of Huntington stock held by the defined contribution plan:

	December 31,
(dollar amounts in thousands, except share amounts)	2016		2015
Shares in Huntington common stock	11,748,379		13,076,164
Market value of Huntington common stock	$	162,245	$	144,622
Dividends received on shares of Huntington stock	3,692		3,076

158

FirstMerit Benefit Plans

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. At the time of acquisition, the benefit obligation was $330 million and the fair value of assets was $280 million. In addition, FirstMerit had a post retirement benefit plan which provided medical and life insurance for retired employees. At the time of acquisition, the benefit obligation was $7 million.

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016, and the net periodic benefit cost for the year then ended:

	Pension Benefits		Post-Retirement Benefits
	2016		2016
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.49	%	4.16	%
Rate of compensation increase	N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.12	%	3.57	%
Expected return on plan assets	6.00		N/A
Rate of compensation increase	N/A		N/A
N/A—Not Applicable

The following table reconciles the beginning and ending balances of the benefit obligation of FirstMerit's pension and post-retirement benefit plan with the amounts recognized in the consolidated balance sheet at the December 31, 2016:

	Pension Benefits			Post-Retirement Benefits
(dollar amounts in thousands)	2016			2016
Projected benefit obligation at beginning of measurement year (1)	$	329,679		$	7,196
Changes due to:
Service cost	954			49
Interest cost	3,218			70
Benefits paid	(2,463		)	(250		)
Settlements	(180,885		)	—
Actuarial assumptions and gains and losses	(35,840		)	(703		)
Total changes	(215,016		)	(834		)
Projected benefit obligation at end of measurement year	$	114,663		$	6,362

(1) The beginning measurement period started August 15, 2016.

During the 2016 fourth quarter, Huntington completed two settlements of the FirstMerit pension benefit obligation totaling $181 million. The settlements triggered settlement accounting, requiring a remeasurement of the plan as of November 30, 2016, and the recognition in the income statement of previously deferred amounts in OCI. The result was a gain of approximately $18 million and is reflected in personnel costs.

The following table reconciles the beginning and ending balances of the fair value of FirstMerit's plan assets at the December 31, 2016 measurement date:

159

	Pension Benefits
(dollar amounts in thousands)	2016
Fair value of plan assets at beginning of measurement year (1)	$	280,217
Changes due to:
Actual return on plan assets	(3,068		)
Settlements	(179,114		)
Benefits paid	(2,463		)
Total changes	(184,645		)
Fair value of plan assets at end of measurement year	$	95,572

(1) The beginning measurement period started August 15, 2016.

FirstMerit’s accumulated benefit obligation under the pension plan was $115 million at December 31, 2016. As of December 31, 2016, the difference between the accumulated benefit obligation and the fair value was $19 million and is recorded in noncurrent liabilities.

The following table shows the components of FirstMerit's net periodic benefit costs recognized in the year ended December 31, 2016:

	Pension Benefits			Post-Retirement Benefits
(dollar amounts in thousands)	2016			2016
Service cost	$	954		$	49
Interest cost	3,218			70
Expected return on plan assets	(4,893		)	—
Amortization of (gain) / loss	(20		)	—
Settlements	(17,605		)	—
Benefit costs	$	(18,346	)	$	119

Included in FirstMerit's benefit costs is $1 million of plan expenses that were recognized in the year ended December 31, 2016. It is Huntington’s policy to recognize settlement gains and losses as incurred. Assuming no cash contributions are made to the Plan during 2017, Management expects net periodic pension benefit, excluding any expense of settlements, to approximate $1 million in 2017.

At December 31, 2016 the fair value of FirstMerit plan assets are as follows:

	Fair Value
(dollar amounts in thousands)	2016
Cash equivalents:
Federated-money market	$	5,431	6	%
Fixed income:
Corporate obligations	5,375		6
U.S. Government Obligations	6,466		7
Mutual funds-fixed income	23,317		24
U.S. Government Agencies	2,801		3
Equities:
Mutual funds-equities	15,395		16
Common stock	36,787		38
Fair value of plan assets	$	95,572	100	%

At December 31, 2016, the following table shows when benefit payments were expected to be paid:

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(dollar amounts in thousands)	Pension Benefits		Post- Retirement Benefits
2017	$	8,673	$	904
2018	4,471		841
2019	4,811		220
2020	4,926		221
2021	4,945		222
2022 through 2026	26,853		1,150

17. INCOME TAXES

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state, city, and foreign jurisdictions. Federal income tax audits have been completed 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.

Huntington accounts for uncertainties in income taxes in accordance with ASC 740, Income Taxes. At December 31, 2016, Huntington had gross unrecognized tax benefits of $24 million in income tax liability related to uncertain tax positions. Due to the complexities of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from the current estimate of the tax liabilities. Huntington does not anticipate the total amount of gross unrecognized tax benefits to significantly change within the next 12 months.

The following table provides a reconciliation of the beginning and ending amounts of gross unrecognized tax benefits:

(dollar amounts in thousands)	2016		2015
Unrecognized tax benefits at beginning of year	$	23,104	$	1,172
Gross increases for tax positions taken during current period	657		23,104
Gross increases for tax positions taken during prior years	—		—
Gross decreases for tax positions taken during prior years	—		(1,172		)
Unrecognized tax benefits at end of year	$	23,761	$	23,104

Any interest and penalties on income tax assessments or income tax refunds are recognized in the Consolidated Statements of Income as a component of provision for income taxes. Huntington recognized, no interest expense, $0.1 million of interest benefit, and $0.1 million of interest expense for the years ended December 31, 2016, 2015 and 2014, respectively. Total interest accrued was $0.1 million and $0.1 million at December 31, 2016 and 2015, respectively. All of the gross unrecognized tax benefits would impact the Company’s effective tax rate if recognized.

The following is a summary of the provision (benefit) for income taxes:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Current tax provision (benefit)
Federal	$	39,738	$	146,195	$	186,436
State	3,456		5,677		(1,017		)
Total current tax provision (benefit)	43,194		151,872		185,419
Deferred tax provision (benefit)
Federal	160,610		66,823		41,167
State	4,137		1,953		(5,993		)
Total deferred tax provision (benefit)	164,747		68,776		35,174
Provision for income taxes	$	207,941	$	220,648	$	220,593

The following is a reconciliation for provision for income taxes:

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	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Provision for income taxes computed at the statutory rate	$	321,925		$	319,762		$	298,545
Increases (decreases):
Tax-exempt income	(27,453		)	(20,839		)	(17,971		)
Tax-exempt bank owned life insurance income	(20,149		)	(18,340		)	(19,967		)
General business credits	(64,151		)	(47,894		)	(46,047		)
State deferred tax asset valuation allowance adjustment, net	—			—			(7,430		)
Capital loss	(45,500		)	(46,288		)	(26,948		)
Affordable housing investment amortization, net of tax benefits	36,848			31,741			33,752
State income taxes, net	4,936			4,960			2,873
Other	1,485			(2,454		)	3,786
Provision for income taxes	$	207,941		$	220,648		$	220,593

The significant components of deferred tax assets and liabilities at December 31, were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Deferred tax assets:
Allowances for credit losses	$	254,977		$	238,415
Fair value adjustments	216,768			121,642
Net operating and other loss carryforward	140,842			61,492
Tax credit carryforward	76,328			1,823
Accrued expense/prepaid	64,380			44,733
Pension and other employee benefits	34,921			2,405
Partnership investments	22,514			21,614
Market discount	8,295			11,781
Purchase accounting adjustments	—			41,917
Other	10,506			11,645
Total deferred tax assets	829,531			557,467
Deferred tax liabilities:
Lease financing	325,091			261,078
Loan origination costs	137,577			114,488
Purchase accounting adjustments	74,371			6,944
Securities adjustments	55,786			19,952
Operating assets	54,372			46,685
Mortgage servicing rights	51,440			48,514
Pension and other employee benefits	—			—
Other	8,796			5,463
Total deferred tax liabilities	707,433			503,124
Net deferred tax asset before valuation allowance	122,098			54,343
Valuation allowance	(5,003		)	(3,620		)
Net deferred tax asset	$	117,095		$	50,723

At December 31, 2016, Huntington’s net deferred tax asset related to loss and other carryforwards was $217 million. This was comprised of federal net operating loss carryforwards of $97 million, which will begin expiring in 2023, $44 million of state net operating loss carryforwards, which will begin expiring in 2017, an alternative minimum tax credit carryforward of $73 million, which may be carried forward indefinitely, and a general business credit carryforward of $3 million, which will begin expiring in 2030.

In prior periods, Huntington established a valuation allowance against deferred tax assets for state deferred tax assets, and state net operating loss carryforwards. The state valuation allowance was based on the uncertainty of forecasted state taxable income

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expected in applicable jurisdictions in order to utilize the state deferred tax assets and state net operating loss carryforwards. Based on current analysis of both positive and negative evidence and projected forecasted taxable income within applicable jurisdictions, the Company believes that it is more likely than not, portions of the state deferred tax assets and state net operating loss carryforwards will be realized. As a result of this analysis, the state valuation allowance was $5 million at December 31, 2016 compared to $4 million at December 31, 2015.

At December 31, 2016 retained earnings included approximately $12 million of base year reserves of acquired thrift institutions, for which no deferred federal income tax liability has been recognized. Under current law, if these bad debt reserves are used for purposes other than to absorb bad debt losses, they will be subject to federal income tax at the current corporate rate. The amount of unrecognized deferred tax liability relating to the cumulative bad debt deduction was approximately $4 million at December 31, 2016.

18. FAIR VALUES OF ASSETS AND LIABILITIES

Following is a description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy.

Loans held for sale

Huntington has elected to apply the fair value option for mortgage loans originated with the intent to sell which are included in loans held for sale. Mortgage loans held for sale are classified as Level 2 and are estimated using security prices for similar product types.

Loans held for investment

Certain mortgage loans originated with the intent to sell have been reclassified to mortgage loans held for investment. These loans continue to be measured at fair value. The fair value is determined using fair value of similar mortgage-backed securities adjusted for loan specific variables.

Huntington elected the fair value option for consumer loans with deteriorated credit quality acquired from FirstMerit in accordance with ASC 825. Management decided to elect the fair value option on these consumer loans to allow for operational efficiencies not normally associated with purchased credit impaired loans. The consumer loans are classified as Level 3. The key assumption used to determine the fair value of the consumer loans is discounted cash flows.

Available-for-sale securities and trading account securities

Securities accounted for at fair value include both the available-for-sale and trading portfolios. Huntington uses prices obtained from third-party pricing services and recent trades to determine the fair value of securities. AFS and trading securities are classified as Level 1 using quoted market prices (unadjusted) in active markets for identical securities that Huntington has the ability to access at the measurement date. Less than 1% of the positions in these portfolios are Level 1, and consist of U.S. Treasury securities and money market mutual funds. When quoted market prices are not available, fair values are classified as Level 2 using quoted prices for similar assets in active markets, quoted prices of identical or similar assets in markets that are not active, and inputs that are observable for the asset, either directly or indirectly, for substantially the full term of the financial instrument. 81% of the positions in these portfolios are Level 2, and consist of U.S. Government and agency debt securities, agency mortgage backed securities, asset-backed securities other than the CDO-preferred securities portfolio, certain municipal securities and other securities. For Level 2 securities management uses various methods and techniques to corroborate prices obtained from the pricing service, including references to dealer or other market quotes, and by reviewing valuations of comparable instruments. If relevant market prices are limited or unavailable, valuations may require significant management judgment or estimation to determine fair value, in which case the fair values are classified as Level 3. 19% of our positions are Level 3, and consist of CDO-preferred securities and municipal securities. A significant change in the unobservable inputs for these securities may result in a significant change in the ending fair value measurement of these securities.

The municipal securities portion that is classified as Level 3 uses significant estimates to determine the fair value of these securities which results in greater subjectivity. The fair value is determined by utilizing third-party valuation services. The third-party service provider reviews credit worthiness, prevailing market rates, analysis of similar securities, and projected cash flows. The third-party service provider also incorporates industry and general economic conditions into their analysis. Huntington evaluates the analysis provided for reasonableness.

The CDO-preferred securities portfolios are classified as Level 3 and as such use significant estimates to determine the fair value of these securities which results in greater subjectivity. The CDO-preferred securities portfolio are subjected to a quarterly review of the projected cash flows. These reviews are supported with analysis from independent third parties, and are used as a basis for impairment analysis.

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CDO-preferred securities are CDOs 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. A cash flow analysis is used to estimate fair values and assess impairment for each security within this portfolio. We engage a third-party pricing specialist with direct industry experience in CDO-preferred securities valuations to provide assistance in estimating the fair value and expected cash flows for each security in this portfolio. The PD of each issuer and the market discount rate are the most significant inputs in determining fair value. The Company evaluates the PD assumptions provided by the third-party pricing specialist by comparing the current PD to the assumptions used the previous quarter, actual defaults and deferrals in the current period, and trend data on certain financial ratios of the issuers. Huntington also evaluates the assumptions related to discount rates. Relying on cash flows is necessary because there was a lack of observable transactions in the market and many of the original sponsors or dealers for these securities are no longer able to provide a fair value.

MSRs

MSRs do not trade in an active market with readily observable prices. Accordingly, the fair value of these assets is classified as Level 3. Huntington determines the fair value of MSRs using an income approach model based upon the month-end interest rate curve and prepayment assumptions. The model utilizes assumptions to estimate future net servicing income cash flows, including estimates of time decay, payoffs, and changes in valuation inputs and assumptions. Servicing brokers and other sources of information (e.g. discussion with other mortgage servicers and industry surveys) are used to obtain information on market practice and assumptions. On at least a quarterly basis, third-party marks are obtained from at least one servicing broker. Huntington reviews the valuation assumptions against this market data for reasonableness and adjusts the assumptions if deemed appropriate. Any recommended change in assumptions and/or inputs are presented for review to the Mortgage Price Risk Subcommittee for final approval.

Derivative assets and liabilities

Derivatives classified as Level 2 consist of foreign exchange and commodity contracts, which are valued using exchange traded swaps and futures market data. In addition, Level 2 includes interest rate contracts, which are valued using a discounted cash flow method that incorporates current market interest rates. Level 2 also includes exchange traded options and forward commitments to deliver mortgage-backed securities, which are valued using quoted prices.

Derivatives classified as Level 3 consist of interest rate lock agreements related to mortgage loan commitments. The determination of fair value includes assumptions related to the likelihood that a commitment will ultimately result in a closed loan, which is a significant unobservable assumption. A significant increase or decrease in the external market price would result in a significantly higher or lower fair value measurement.

Short-term borrowings

Short-term borrowings classified as Level 2 consist primarily of U.S. Treasury bond securities sold under agreement to repurchase. These securities are borrowed from other institutions and must be repaid by purchasing the securities in the open market.

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Assets and Liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at December 31, 2016 and 2015 are summarized below:

	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

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	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	337,577	$	—	$	—		$	337,577
Loans held for investment	—		32,889		1,748		—			34,637
Trading account securities:
Municipal securities	—		4,159		—		—			4,159
Other securities	32,475		363		—		—			32,838
	32,475		4,522		—		—			36,997
Available-for-sale and other securities:
U.S. Treasury securities	5,472		—		—		—			5,472
Federal agencies: Mortgage-backed	—		4,521,688		—		—			4,521,688
Federal agencies: Other agencies	—		115,913		—		—			115,913
Municipal securities	—		360,845		2,095,551		—			2,456,396
Asset-backed securities	—		761,076		100,337		—			861,413
Corporate debt	—		466,477		—		—			466,477
Other securities	11,397		3,899		—		—			15,296
	16,869		6,229,898		2,195,888		—			8,442,655
MSRs	—		—		17,585		—			17,585
Derivative assets	—		429,448		6,721		(161,297		)	274,872
Liabilities
Derivative liabilities	—		287,994		665		(144,309		)	144,350
Short-term borrowings	—		1,770		—		—			1,770

(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 years ended December 31, 2016, 2015, and 2014 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 Year ended December 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)	—			(7,251		)	—			—			—
Total gains/losses for the period:
Included in earnings	(3,838		)	(928		)	7,049			(2,593		)	(2,353		)
Included in OCI	—			—			(28,270		)	6,448			—
Purchases/originations	—			—			1,399,394			—			56,469
Sales	—			—			(37,444		)	(25,196		)	—
Repayments	—			—			—			—			(7,984		)
Settlements	—			—			(638,236		)	(2,993		)	—
Closing balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
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	$	(3,838	)	$	(928	)	$	(33,415	)	$	3,722		$	—

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

	Level 3 Fair Value Measurements Year ended December 31, 2015
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private- label CMO			Asset- backed securities			Loans held for investment
Opening balance	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			(2,793		)	—			—			—			—
Total gains/losses for the period:
Included in earnings	(5,201		)	5,489			149			47			(2,400		)	(497		)
Included in OCI	—			—			(3,652		)	1,832			24,802			—
Purchases/originations	—			—			1,002,153			—			—			—
Sales	—			—			(9,656		)	(30,077		)	—			—
Repayments	—			—			—			—			—			(8,345		)
Settlements	—			—			(311,036		)	(2,266		)	(4,803		)	—
Closing balance	$	17,585		$	6,056		$	2,095,551		$	—		$	100,337		$	1,748
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	$	(5,201	)	$	5,489		$	—		$	—		$	(2,440	)	$	(497	)

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	Level 3 Fair Value Measurements Year Ended December 31, 2014
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private label CMO			Asset- backed securities			Loans held for investment
Balance, beginning of year	$	34,236		$	2,390		$	654,537		$	32,140		$	107,419		$	52,286
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			—			—			—			—			—
Total gains/losses for the period:
Included in earnings	(11,450		)	3,047			—			36			226			(918		)
Included in OCI	—			—			14,776			452			21,839			—
Purchases/originations	—			—			1,038,348			—			—			—
Sales	—			—			—			—			(22,870		)	—
Repayments	—			—			—			—			—			(40,778		)
Settlements	—			(2,077		)	(290,068		)	(2,164		)	(23,876		)	—
Balance, end of year	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
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	$	(11,450	)	$	3,047		$	14,776		$	452		$	21,137		$	(1,624	)

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 years ended December 31, 2016, 2015, and 2014:

	Level 3 Fair Value Measurements Year ended December 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	$	(3,838	)	$	(928	)	$	—	$	—		$	—
Securities gains (losses)	—			—			788		(2,598		)	—
Interest and fee income	—			—			—		—			—
Noninterest income	—			—			6,261		5			(2,353		)
Total	$	(3,838	)	$	(928	)	$	7,049	$	(2,593	)	$	(2,353	)

	Level 3 Fair Value Measurements Year ended December 31, 2015
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private- label CMO		Asset- backed securities			Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(5,201	)	$	5,489	$	—	$	—	$	—		$	—
Securities gains (losses)	—			—		149		—		(2,440		)	—
Interest and fee income	—			—		—		47		40			(497		)
Noninterest income	—			—		—		—		—			—
Total	$	(5,201	)	$	5,489	$	149	$	47	$	(2,400	)	$	(497	)

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	Level 3 Fair Value Measurements Year Ended December 31, 2014
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private label CMO		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income (loss)	$	(11,450	)	$	3,047	$	—	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		170		—
Interest and fee income	—			—		—		36		56		(1,032		)
Noninterest income	—			—		—		—		—		114
Total	$	(11,450	)	$	3,047	$	—	$	36	$	226	$	(918	)

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:

	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		)

	December 31, 2015
	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	$	337,577	$	326,802	$	10,775		$	1,268	$	1,294	$	(26	)
Loans held for investment	34,637		35,385		$	(748	)	428		497		$	(69	)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the years ended December 31, 2016, 2015, and 2014:

	Net gains (losses) from fair value changes Year ended December 31,
(dollar amounts in thousands)	2016		2015			2014
Assets
Loans held for sale	$	6,741	$	(2,342	)	$	(1,978	)
Loans held for investment	—		(568		)	(918		)

	Gains (losses) included in fair value changes associated with instrument specific credit  risk Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Assets
Loans held for investment	$	436	$	199	$	911

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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 year ended December 31, 2016, 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) Year ended December 31, 2016
MSRs	$	171,309	$	—	$	—	$	171,309	$	1,918
Impaired loans	53,818		—		—		53,818		11,412
Other real estate owned	50,930		—		—		50,930		(620		)

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.

The appraisals supporting the fair value of the collateral to recognize loan impairment or unrealized loss on other real estate owned properties may not have been obtained as of December 31, 2016.

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 December 31, 2016:

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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	Discount 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 December 31, 2016 and December 31, 2015:

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	December 31, 2016				December 31, 2015
	Carrying		Fair		Carrying		Fair
(dollar amounts in thousands)	Amount		Value		Amount		Value
Financial Assets:
Cash and short-term assets	$	1,443,037	$	1,443,037	$	898,994	$	898,994
Trading account securities	133,295		133,295		36,997		36,997
Loans held for sale	512,951		515,640		474,621		484,511
Available-for-sale and other securities	15,562,837		15,562,837		8,775,441		8,775,441
Held-to-maturity securities	7,806,939		7,787,268		6,159,590		6,135,458
Net loans and direct financing leases	66,323,583		66,294,639		49,743,256		48,024,998
Derivatives	238,219		238,219		274,872		274,872
Financial Liabilities:
Deposits	75,607,717		76,161,091		55,294,979		55,299,435
Short-term borrowings	3,692,654		3,692,654		615,279		615,279
Long-term debt	8,309,159		8,387,444		7,041,364		7,016,789
Derivatives	98,286		98,286		144,350		144,350

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 Consolidated Balance Sheets at fair value at December 31, 2016 and December 31, 2015:

	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

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	6,135,458	$	—	$	6,135,458
Net loans and direct financing leases	—		—		48,024,998		48,024,998
Financial Liabilities
Deposits	—		51,869,105		3,430,330		55,299,435
Short-term borrowings	—		1,770		613,509		615,279
Long-term debt	—		—		7,016,789		7,016,789

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

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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.

19. 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 December 31, 2016, identified by the underlying interest rate-sensitive instruments:

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(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	3,325,000	$	3,325,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	6,525,000		—		6,525,000
Total notional value at December 31, 2016	$	7,475,000	$	3,325,000	$	10,800,000

The following table presents additional information about the interest rate swaps used in Huntington’s asset and liability management activities at December 31, 2016:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	3,325,000	0.6	$	(2,060	)	1.04	%	0.91	%
Liability conversion swaps
Receive fixed—generic	7,475,000		3.1	(51,496		)	1.49		0.88
Total swap portfolio at December 31, 2016	$	10,800,000	2.3	$	(53,556	)	1.35	%	0.89	%

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 $72 million, $108 million, and $98 million for the years ended December 31, 2016, 2015, and 2014, 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 December 31, 2016, 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 December 31, 2016 and 2015 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)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	46,440	$	80,513
Interest rate contracts not designated as hedging instruments	213,587		190,846
Foreign exchange contracts not designated as hedging instruments	23,265		37,727
Commodity contracts not designated as hedging instruments	108,026		117,894
Equity contracts not designated as hedging instruments	9,775		—
Total contracts	$	401,093	$	426,980

Liability derivatives included in accrued expenses and other liabilities:

(dollar amounts in thousands)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	99,996	$	15,215
Interest rate contracts not designated as hedging instruments	143,976		121,815
Foreign exchange contracts not designated as hedging instruments	19,576		35,283
Commodity contracts not designated as hedging instruments	104,328		114,887
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	367,876	$	287,200

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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:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	(82	)	$	(996	)	$	(1,045	)
Change in fair value of hedged deposits (1)	72			992			1,025
Change in fair value of interest rate swaps hedging subordinated notes (2)	(47,852		)	(8,237		)	476
Change in fair value of hedged subordinated notes (2)	45,019			8,237			(476		)
Change in fair value of interest rate swaps hedging long-term debt (2)	(74,481		)	3,903			1,990
Change in fair value of hedged other long-term debt (2)	67,389			(3,602		)	828

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

The following table presents the gains and (losses) recognized in OCI and the location in the 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)						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) (pre-tax)
(dollar amounts in thousands)	2016		2015		2014			2016			2015			2014
Interest rate contracts
Loans	$	1,548	$	8,428	$	9,192	Interest and fee income—loans and leases	$	(361	)	$	(210	)	$	(4,064	)
Investment securities	—		—		—		Noninterest income - other income	1			(10		)	93
Total	$	1,548	$	8,428	$	9,192		$	(360	)	$	(220	)	$	(3,971	)

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 $(2) 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 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 years ending December 31, 2016, 2015, and 2014:

	December 31,
(dollar amounts in thousands)	2016			2015			2014
Derivatives in cash flow hedging relationships
Interest rate contracts:
Loans	$	(317	)	$	(763	)	$	74

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.

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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)	December 31, 2016			December 31, 2015
Derivative assets:
Interest rate lock agreements	$	5,747		$	6,721
Forward trades and options	13,319			2,468
Total derivative assets	19,066			9,189
Derivative liabilities:
Interest rate lock agreements	(1,598		)	(220		)
Forward trades and options	(1,173		)	(1,239		)
Total derivative liabilities	(2,771		)	(1,459		)
Net derivative asset	$	16,295		$	7,730

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 December 31, 2016 and 2015, was $0.3 billion and $0.5 billion, respectively. The total notional amount at December 31, 2016 corresponds to trading assets with a fair value of $1 million and trading liabilities with a fair value of $3 million. Net trading gains (losses) related to MSR hedging for the years ended December 31, 2016, 2015, and 2014, were $(1) million, $(2) million, and $7 million, respectively. These amounts are included in mortgage banking income in the 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 December 31, 2016 and December 31, 2015, were $80 million and $76 million, respectively. The total notional values of derivative financial instruments used by Huntington on behalf of customers, including offsetting derivatives, were $20.6 billion and $14.6 billion at December 31, 2016 and December 31, 2015, respectively. Huntington’s credit risks from interest rate swaps used for trading purposes were $196 million and $224 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 Consolidated Statements of Income. At December 31, 2016, the fair value of the share swap was $10 million.

Risk Participation Agreements

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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 $582 million and $344 million at December 31, 2016 and December 31, 2015, 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 $3 million at December 31, 2016 and a negative value (payable) of $6 million at December 31, 2015. These contracts mature between 2017 and 2043 and are deemed investment grade.

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

Huntington records derivatives at fair value as further described in Note 18. Huntington records these derivatives net of any master netting arrangement in the 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 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 December 31, 2016 and December 31, 2015, aggregate credit risk associated with these derivatives, net of collateral that has been pledged by the counterparty, was $26 million and $15 million, respectively. The credit risk associated with interest rate swaps is calculated after considering master netting agreements with broker-dealers and banks.

At December 31, 2016, Huntington pledged $172 million of investment securities and cash collateral to counterparties, while other counterparties pledged $90 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 Consolidated Balance Sheets at December 31, 2016 and December 31, 2015:

Offsetting of Financial Assets and Derivative Assets
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
December 31, 2016	Derivatives	$	420,159	$	(181,940	)	$	238,219	$	(34,328	)	$	(5,428	)	$	198,463
December 31, 2015	Derivatives	436,169		(161,297		)	274,872		(39,305		)	(3,462		)	232,105

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Offsetting of Financial Liabilities and Derivative Liabilities
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
December 31, 2016	Derivatives	$	370,647	$	(272,361	)	$	98,286	$	(7,550	)	$	(23,943	)	$	66,793
December 31, 2015	Derivatives	288,659		(144,309		)	144,350		(62,460		)	(20		)	81,870

20. VIEs

Consolidated VIEs

Consolidated VIEs at December 31, 2016, 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. During the 2015 first quarter, Huntington acquired two securitization trusts with its acquisition of Huntington Technology Finance. During the 2016 first quarter, Huntington canceled the Series 2012A Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust.

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Consolidated Balance Sheets at December 31, 2016 and 2015:

	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

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	December 31, 2015
	Huntington Technology Funding Trust				Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2012A		Series 2014A
Assets:
Cash	$	1,377	$	1,561	$	—	$	2,938
Net loans and leases	32,180		152,331		—		184,511
Accrued income and other assets	—		—		229		229
Total assets	$	33,557	$	153,892	$	229	$	187,678
Liabilities:
Other long-term debt	$	27,153	$	123,577	$	—	$	150,730
Accrued interest and other liabilities	—		—		229		229
Total liabilities	27,153		123,577		229		150,959
Equity:
Beneficial Interest owned by third party	$	6,404	$	30,315	—		36,719
Total liabilities and equity	$	33,557	$	153,892	$	229	$	187,678

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 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 December 31, 2016, and 2015:

	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
2012-1 Automobile Trust	—		—		—
2012-2 Automobile Trust	—		—		—
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

	December 31, 2015
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2015-1 Automobile Trust	$	7,695	$	—	$	7,695
2012-1 Automobile Trust	94		—		94
2012-2 Automobile Trust	771		—		771
Trust Preferred Securities	13,919		317,106		—
Low Income Housing Tax Credit Partnerships	425,500		196,001		425,500
Other Investments	68,746		25,762		68,746
Total	$	516,725	$	538,869	$	502,806

AUTOMOBILE TRUST SECURITIZATIONS

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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
2012-1 Automobile Trust	2012	1,300
2012-2 Automobile Trust	2012	1,000

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 accrued income and other assets of Huntington’s Consolidated Balance Sheets. The maximum exposure to loss is equal to the carrying value of the servicing asset. See Note 7 for more information.

During the 2016 first quarter, Huntington canceled the 2012-1 Automobile Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust. During the 2016 third quarter, Huntington canceled the 2012-2 Automobile Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust.

TRUST-PREFERRED SECURITIES

Huntington has certain wholly-owned trusts whose assets, liabilities, equity, income, and expenses are not included within Huntington’s 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 Consolidated Balance Sheet as subordinated notes. The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Consolidated Financial Statements. A list of trust-preferred securities outstanding at December 31, 2016 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.59	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.59		(3)	32,093		3,093
Sky Financial Capital Trust III	2.40		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.25		(4)	74,320		2,320
Camco Financial Trust	3.43		(5)	4,244		155
Total				$	252,552	$	13,919

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

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR + 0.70.

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR + 62.5.

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR + 1.40.

(5) Variable effective rate (including impact of purchase accounting accretion) at December 31, 2016, 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.

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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 a majority of its 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 losses related to these investments are included in noninterest income in the Consolidated Statements of Income.

The following table presents the balances of Huntington’s affordable housing tax credit investments and related unfunded commitments at December 31, 2016 and 2015.

(dollar amounts in thousands)	December 31, 2016			December 31, 2015
Affordable housing tax credit investments	$	877,237		$	674,157
Less: amortization	(300,357		)	(248,657		)
Net affordable housing tax credit investments	$	576,880		$	425,500
Unfunded commitments	$	292,721		$	196,001

The following table presents other information relating to Huntington’s affordable housing tax credit investments for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Tax credits and other tax benefits recognized	$	79,696	$	59,614	$	51,317
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	52,713		42,951		39,021
Equity method
Tax credit investment losses included in noninterest income	637		355		434

There were no sales of LIHTC investments in 2016, 2015 or 2014. Huntington recognized immaterial impairment losses for the years ended December 31, 2016, 2015 and 2014. 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.

21. 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 Consolidated Financial Statements. The contract amounts of these financial agreements at December 31, 2016, and December 31, 2015 were as follows:

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	At December 31,
(dollar amounts in thousands)	2016		2015
Contract amount represents credit risk
Commitments to extend credit:
Commercial	$	15,190,056	$	11,448,927
Consumer	12,235,943		8,574,093
Commercial real estate	1,697,671		813,271
Standby letters of credit	637,182		511,706
Commercial letters-of-credit	4,610		56,119

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 $8 million and $7 million at December 31, 2016 and December 31, 2015, 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 December 31, 2016 and 2015, Huntington had commitments to sell residential real estate loans of $819 million and $659 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 $65 million at December 31, 2016. 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.

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.

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Meoli v. The Huntington National Bank (Cyberco Litigation). The Bank has been named a defendant in a lawsuit arising from the Bank’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 Merger Shareholder Litigation. Huntington is a defendant in five lawsuits filed in February and March of 2016 in state and federal courts in Ohio relating to the FirstMerit merger. The plaintiffs in each case are FirstMerit shareholders and have filed class action and derivative claims seeking to enjoin the merger. The parties in the federal court cases have entered into a tentative settlement. The defendants made agreed supplemental disclosures in advance of the shareholder vote in exchange for which plaintiffs agreed to withdraw their preliminary injunction motion and agreed to a release of all claims in the federal and state actions. The parties jointly moved for approval of the settlement by the federal court, which was granted on February 1, 2017. The plaintiffs in the state court cases did not join in the settlement, but their claims will be released in the federal court settlement.

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.

Commitments Under Operating Lease Obligations

At December 31, 2016, Huntington and its subsidiaries were obligated under noncancelable leases for land, buildings, and equipment. Many of these leases contain renewal options and certain leases provide options to purchase the leased property during or at the expiration of the lease period at specified prices. Some leases contain escalation clauses calling for rentals to be adjusted for increased real estate taxes and other operating expenses or proportionately adjusted for increases in the consumer or other price indices.

The future minimum rental payments required under operating leases that have initial or remaining noncancelable lease terms in excess of one year as of December 31, 2016, were as follows: $59 million in 2017, $54 million in 2018, $48 million in 2019, $46 million in 2020, $30 million in 2021, and $152 million thereafter. At December 31, 2016, total minimum lease payments have not been reduced by minimum sublease rentals of $8 million due in the future under noncancelable subleases. At December 31, 2016, the future minimum sublease rental payments that Huntington expects to receive were as follows: $3 million in 2017, $2 million in 2018, $2 million in 2019, $1 million in 2020, $0 million in 2021, and $0 million thereafter. The rental expense for all operating leases was $65 million, $58 million, and $57 million for 2016, 2015, and 2014, respectively. Huntington had no material obligations under capital leases.

22. OTHER REGULATORY MATTERS

Huntington and its bank subsidiary, The Huntington National Bank (the Bank), are subject to various regulatory capital requirements administered by banking regulators. These requirements involve qualitative judgments and quantitative measures of assets, liabilities, capital amounts, and certain off-balance sheet items as calculated under regulatory accounting practices. Failure to meet minimum capital requirements can initiate certain actions by regulators that, if undertaken, could have a material adverse effect on Huntington’s and the Bank’s financial statements.

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Beginning in 2015, Huntington and the Bank became subject to the Basel III capital requirements including the standardized approach for calculating risk-weighted assets in accordance with subpart D of the final capital rule. The Basel III capital requirements emphasize CET1 capital, the most loss-absorbing form of capital, and implement strict eligibility criteria for regulatory capital instruments. CET1 capital primarily includes common shareholders’ equity less certain deductions for goodwill and other intangibles net of related taxes, and deferred tax assets that arise from tax loss and credit carryforwards. Tier 1 capital is primarily comprised of CET1 capital, perpetual preferred stock and certain qualifying capital instruments (TRUPS) that are subject to eventual phase-out from tier 1 capital in 2017. Tier 2 capital primarily includes qualifying subordinated debt and qualifying ALLL. We are also subject to CCAR and must submit annual capital plans to our banking regulators. We may pay dividends and repurchase stock up to the levels submitted in our 2016 CCAR capital plan submission to which the FRB did not object.

As of December 31, 2016, Huntington and the Bank met all capital adequacy requirements and had regulatory capital ratios in excess of the levels established for well-capitalized institutions. The period-end capital amounts and capital ratios of Huntington and the Bank are as follows, including the CET1 ratio on a Basel III basis. The implementation of the Basel III capital requirements is transitional and phases-in from January 1, 2015 through the end of 2018.

		Well-				December 31,
		capitalized		Minimum		2016				2015
		Capital		Capital		Basel III
(dollar amounts in thousands)		Ratios		Ratios		Ratio		Amount		Ratio		Amount
Common equity tier 1 risk-based capital	Consolidated	N.A.		4.50	%	9.56	%	$	7,485,816	9.79	%	$	5,721,028
	Bank	6.50	%	4.50		10.42		8,153,091		9.46		5,518,748
Tier 1 risk-based capital	Consolidated	6.00		6.00		10.92		8,547,154		10.53		6,154,000
	Bank	8.00		6.00		11.61		9,085,921		9.83		5,735,274
Total risk-based capital	Consolidated	10.00		8.00		13.05		10,215,627		12.64		7,386,936
	Bank	10.00		8.00		13.83		10,817,597		11.74		6,850,596
Tier 1 leverage capital	Consolidated	N.A.		4.00		8.70		8,547,154		8.79		6,154,000
	Bank	5.00		4.00		9.29		9,085,921		8.21		5,735,274

Huntington has the ability to provide additional capital to the Bank to maintain the Bank’s risk-based capital ratios at levels at which would be considered well-capitalized.

Huntington and its subsidiaries are also subject to various regulatory requirements that impose restrictions on cash, debt, and dividends. The Bank is required to maintain cash reserves based on the level of certain of its deposits. This reserve requirement may be met by holding cash in banking offices or on deposit at the Federal Reserve Bank. During 2016 and 2015, the average balances of these deposits were $0.3 billion and $0.5 billion, respectively.

Under current Federal Reserve regulations, the Bank is limited as to the amount and type of loans it may make to the parent company and nonbank subsidiaries. At December 31, 2016, the Bank could lend $1.1 billion to a single affiliate, subject to the qualifying collateral requirements defined in the regulations.

Dividends from the Bank are one of the major sources of funds for the Company. These funds aid the Company in the payment of dividends to shareholders, expenses, and other obligations. Payment of dividends and/or return of capital to the parent company is subject to various legal and regulatory limitations. During 2016, the Bank paid dividends and returned capital of $638.2 million to the holding company. Also, there are statutory and regulatory limitations on the ability of national banks to pay dividends or make other capital distributions.

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23. PARENT-ONLY FINANCIAL STATEMENTS

The parent-only financial statements, which include transactions with subsidiaries, are as follows:

Balance Sheets	December 31,
(dollar amounts in thousands)	2016		2015
Assets
Cash and due from banks	$	1,752,889	$	917,368
Due from The Huntington National Bank	730,004		406,253
Due from non-bank subsidiaries	45,193		48,151
Investment in The Huntington National Bank	10,668,303		5,966,783
Investment in non-bank subsidiaries	499,611		489,205
Accrued interest receivable and other assets	320,666		192,444
Total assets	$	14,016,666	$	8,020,204
Liabilities and shareholders’ equity
Long-term borrowings	$	3,144,615	$	1,040,981
Dividends payable, accrued expenses, and other liabilities	563,905		384,617
Total liabilities	3,708,520		1,425,598
Shareholders’ equity (1)	10,308,146		6,594,606
Total liabilities and shareholders’ equity	$	14,016,666	$	8,020,204

(1) See Consolidated Statements of Changes in Shareholders’ Equity.

Statements of Income	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Income
Dividends from
The Huntington National Bank	$	188,200		$	822,000		$	244,000
Non-bank subsidiaries	11,378			38,883			27,773
Interest from
The Huntington National Bank	13,892			5,954			3,906
Non-bank subsidiaries	2,221			2,317			2,613
Other	—			4,529			2,994
Total income	215,691			873,683			281,286
Expense
Personnel costs	11,960			4,770			53,359
Interest on borrowings	59,027			17,428			17,031
Other	122,869			92,735			52,662
Total expense	193,856			114,933			123,052
Income (loss) before income taxes and equity in undistributed net income of subsidiaries	21,835			758,750			158,234
Provision (benefit) for income taxes	(56,255		)	(109,867		)	(62,897		)
Income (loss) before equity in undistributed net income of subsidiaries	78,090			868,617			221,131
Increase (decrease) in undistributed net income (loss) of:
The Huntington National Bank	629,220			(160,567		)	414,049
Non-bank subsidiaries	4,511			(15,093		)	(2,788		)
Net income	$	711,821		$	692,957		$	632,392
Other comprehensive income (loss) (1)	(174,858		)	(3,866		)	(8,283		)
Comprehensive income	$	536,963		$	689,091		$	624,109

(1) See Consolidated Statements of Comprehensive Income for other comprehensive income (loss) detail.

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Statements of Cash Flows	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Operating activities
Net income	$	711,821		$	692,957		$	632,392
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries	(633,730		)	175,660			(411,261		)
Depreciation and amortization	(1,390		)	609			548
Loss on sales of securities available-for-sale	—			540			—
Other, net	(23,600		)	(44,197		)	26,685
Net cash (used for) provided by operating activities	53,101			825,569			248,364
Investing activities
Repayments from subsidiaries	464,284			494,905			9,250
Advances to subsidiaries	(1,758,745		)	(612,610		)	(32,350		)
Proceeds from sale of securities available-for-sale	(1,589		)	449			—
Cash paid for acquisitions, net of cash received	(133,218		)	—			(13,452		)
Proceeds from business divestitures	—			9,029			—
Net cash (used for) provided by investing activities	(1,429,268		)	(108,227		)	(36,552		)
Financing activities
Proceeds from issuance of long-term borrowings	1,989,938			—			—
Payment of borrowings	(64,586		)	—			—
Dividends paid on stock	(299,588		)	(224,390		)	(198,789		)
Net proceeds from issuance of common stock	—			—			2,597
Net proceeds from issuance of preferred stock	584,936			—			—
Repurchases of common stock	—			(251,844		)	(334,429		)
Other, net	988			13,492			15,512
Net cash provided by (used for) financing activities	2,211,688			(462,742		)	(515,109		)
Increase (decrease) in cash and due from banks	835,521			254,600			(303,297		)
Cash and due from banks at beginning of year	917,368			662,768			966,065
Cash and due from banks at end of year	$	1,752,889		$	917,368		$	662,768
Supplemental disclosure:
Interest paid	$	36,068		$	17,384		$	21,321

24. 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

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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 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).

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, investments, 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 Private Client Group segments, as well as through commissioned loan originators. Home lending earns interest portfolio loans and 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.

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Listed below is certain financial information reconciled to Huntington’s December 31, 2016, December 31, 2015, and December 31, 2014, reported results by business segment:

Income Statements (dollar amounts in thousands)	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
2016
Net interest income	$	1,272,713	$	512,995	$	468,969		$	177,431		$	58,354		$	(121,144	)	$	2,369,318
Provision (benefit) for credit losses	71,945		98,816		26,922			(3,467		)	(3,412		)	(2		)	190,802
Noninterest income	558,811		275,258		40,582			120,687			90,358			64,035			1,149,731
Noninterest expense	1,208,585		385,783		170,276			196,194			124,683			322,964			2,408,485
Provision (benefit) for income taxes	192,848		106,279		109,324			36,887			9,604			(247,001		)	207,941
Net income (loss)	$	358,146	$	197,375	$	203,029		$	68,504		$	17,837		$	(133,070	)	$	711,821
2015
Net interest income	$	1,027,950	$	379,409	$	381,231		$	139,188		$	50,404		$	(27,445	)	$	1,950,737
Provision (benefit) for credit losses	42,777		49,534		4,890			87			2,671			(5		)	99,954
Noninterest income	478,142		258,778		29,254			114,814			87,021			70,721			1,038,730
Noninterest expense	1,099,779		284,026		152,010			195,667			144,848			99,578			1,975,908
Provision (benefit) for income taxes	127,238		106,619		88,755			20,387			(3,533		)	(118,818		)	220,648
Net income (loss)	$	236,298	$	198,008	$	164,830		$	37,861		$	(6,561	)	$	62,521		$	692,957
2014
Net interest income	$	912,992	$	306,434	$	379,363		$	101,839		$	58,015		$	78,498		$	1,837,141
Provision (benefit) for credit losses	75,529		31,521		(52,843		)	4,893			21,889			—			80,989
Noninterest income	409,746		209,238		26,628			173,550			69,899			90,118			979,179
Noninterest expense	982,288		249,300		156,715			236,634			136,374			121,035			1,882,346
Provision (benefit) for income taxes	92,722		82,198		105,742			11,852			(10,622		)	(61,299		)	220,593
Net income (loss)	$	172,199	$	152,653	$	196,377		$	22,010		$	(19,727	)	$	108,880		$	632,392

	Assets at December 31,				Deposits at December 31,
(dollar amounts in thousands)	2016		2015		2016		2015
Consumer & Business Banking	$	21,796,887	$	15,759,561	$	44,860,515	$	30,964,241
Commercial Banking	23,918,429		17,022,387		15,616,241		11,498,883
CREVF	23,580,331		17,856,358		1,886,626		1,649,301
RBHPCG	5,553,012		4,277,970		8,521,401		7,530,241
Home Lending	3,502,304		3,080,690		639,418		361,881
Treasury / Other	21,363,134		13,021,335		4,083,516		3,290,432
Total	$	99,714,097	$	71,018,301	$	75,607,717	$	55,294,979

188

25. QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

The following is a summary of the quarterly results of operations, for the years ended December 31, 2016 and 2015:

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2016		2016		2016		2016
Interest income	$	814,858	$	694,346	$	565,658	$	557,251
Interest expense	79,877		68,956		59,777		54,185
Net interest income	734,981		625,390		505,881		503,066
Provision for credit losses	74,906		63,805		24,509		27,582
Noninterest income	334,337		302,415		271,112		241,867
Noninterest expense	681,497		712,247		523,661		491,080
Income before income taxes	312,915		151,753		228,823		226,271
Provision for income taxes	73,952		24,749		54,283		54,957
Net income	238,963		127,004		174,540		171,314
Dividends on preferred shares	18,865		18,537		19,874		7,998
Net income applicable to common shares	$	220,098	$	108,467	$	154,666	$	163,316
Net income per common share — Basic	$	0.20	$	0.12	$	0.19	$	0.21
Net income per common share — Diluted	0.20		0.11		0.19		0.20

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2015		2015		2015		2015
Interest income	$	544,153	$	538,477	$	529,795	$	502,096
Interest expense	47,242		43,022		39,109		34,411
Net interest income	496,911		495,455		490,686		467,685
Provision for credit losses	36,468		22,476		20,419		20,591
Noninterest income	272,215		253,119		281,773		231,623
Noninterest expense	498,766		526,508		491,777		458,857
Income before income taxes	233,892		199,590		260,263		219,860
Provision for income taxes	55,583		47,002		64,057		54,006
Net income	178,309		152,588		196,206		165,854
Dividends on preferred shares	7,972		7,968		7,968		7,965
Net income applicable to common shares	$	170,337	$	144,620	$	188,238	$	157,889
Net income per common share — Basic	$	0.21	$	0.18	$	0.23	$	0.19
Net income per common share — Diluted	0.21		0.18		0.23		0.19

Item 9: Changes In and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A: 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 (the Exchange Act), are recorded, processed, summarized, and reported within the time periods specified in the Commission’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

189

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 December 31, 2016. Based upon such evaluation, Huntington’s Chief Executive Officer and Chief Financial Officer have concluded that, as of December 31, 2016, Huntington’s disclosure controls and procedures were effective.

Internal Control Over Financial Reporting

Information required by this item is set forth in the Report of Management's Assessment of Internal Control over Financial Reporting and the Report of Independent Registered Public Accounting Firm.

Changes in Internal Control Over Financial Reporting

There have not been any changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended December 31, 2016, that have materially affected, or are reasonably likely to materially affect, internal control over financial reporting.

Item 9B: Other Information

Not applicable.

PART III

We refer in Part III of this report to relevant sections of our 2017 Proxy Statement for the 2017 annual meeting of shareholders, which will be filed with the SEC pursuant to Regulation 14A within 120 days of the close of our 2016 fiscal year. Portions of our 2017 Proxy Statement, including the sections we refer to in this report, are incorporated by reference into this report.

Item 10: Directors, Executive Officers and Corporate Governance

Information required by this item is set forth under the captions Election of Directors, Corporate Governance, Our Executive Officers, Board Meetings and Committee Information, Report of the Audit Committee, and Section 16(a) Beneficial Ownership Reporting Compliance of our 2017 Proxy Statement, which is incorporated by reference into this item.

Item 11: Executive Compensation

Information required by this item is set forth under the captions Compensation of Executive Officers of our 2017 Proxy Statement, which is incorporated by reference into this item.

Item 12: Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The following table sets forth information about Huntington common stock authorized for issuance under Huntington’s existing equity compensation plans as of December 31, 2016.

Plan Category (1)	Number of securities to be issued upon exercise of outstanding options, warrants, and rights (2) (a)	Weighted-average exercise price of outstanding options, warrants, and rights (3) (b)		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (4) (c)
Equity compensation plans approved by security holders	33,552,345	$	3.32	15,979,699
Equity compensation plans not approved by security holders	18,263	12.86		—
Total	33,570,608	$	3.32	15,979,699

(1) All equity compensation plan authorizations for shares of common stock provide for the number of shares to be adjusted for stock splits, stock dividends, and other changes in capitalization. The Huntington Investment and Tax Savings Plan, a broad-based plan qualified under Code Section 401(a) which includes Huntington common stock as one of a number of investment options available to participants, is excluded from the table.

(2) The numbers in this column (a) reflect shares of common stock to be issued upon exercise of outstanding stock options and the vesting of outstanding awards of RSUs, RSAs and PSUs and the release of DSUs. The shares of common stock to be

190

issued upon exercise or vesting under equity compensation plans not approved by shareholders include an inducement grant issued outside of the Company’s stock plans, and awards granted under the following plans which are no longer active and for which Huntington has not reserved the right to make subsequent grants or awards: employee and director stock plans of Unizan Financial Corp. and Camco Financial Corporation assumed in the acquisitions of these companies.

(3) The weighted-average exercise prices in this column are based on outstanding options and do not take into account unvested awards of RSUs, RSAs and PSUs and unreleased DSUs as these awards do not have an exercise price.

(4) The number of shares in this column (c) reflects the number of shares remaining available for future issuance under Huntington’s 2015 Plan, excluding shares reflected in column (a). The number of shares in this column (c) does not include shares of common stock to be issued under the following compensation plans: the Executive Deferred Compensation Plan, which provides senior officers designated by the Compensation Committee the opportunity to defer up to 90% of base salary, annual bonus compensation and certain equity awards, and up to 90% of long-term incentive awards; the Supplemental Plan under which voluntary participant contributions made by payroll deduction are used to purchase shares; the Deferred Compensation for Huntington Bancshares Incorporated Directors under which directors may defer their director compensation and such amounts may be invested in shares of common stock; and the Deferred Compensation Plan for directors (now inactive) under which directors of selected subsidiaries may defer their director compensation and such amounts may be invested in shares of Huntington common stock. These plans do not contain a limit on the number of shares that may be issued under them.

Additional information required by this item is set forth under the captions Ownership of Voting Stock of our 2017 Proxy Statement, which is incorporated by reference into this item.

Item 13: Certain Relationships and Related Transactions, and Director Independence

Information required by this item is set forth under the captions Indebtedness of Management and Certain other Transactions of our 2017 Proxy Statement, which is incorporated by reference into this item.

Item 14: Principal Accountant Fees and Services

Information required by this item is set forth under the caption Proposal to Ratify the Appointment of Independent Registered Public Accounting Firm of our 2017 Proxy Statement which is incorporated by reference into this item.

PART IV

Item 15: Exhibits and Financial Statement Schedules

Financial Statements and Financial Statement Schedules

Our consolidated financial statements required in response to this Item are incorporated by reference from Item 8 of this Report.

Exhibits

Our exhibits listed on the Exhibit Index of this Form 10-K are filed with this Report or are incorporated herein by reference.

191

Item 16: 10-K Summary

Not applicable.

Signatures

Pursuant to the requirements of Section 13 or 15(d) 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, on the 22nd day of February, 2017.

HUNTINGTON BANCSHARES INCORPORATED

(Registrant)

By:	/s/ Stephen D. Steinour	By:	/s/ Howell D. McCullough III
	Stephen D. Steinour		Howell D. McCullough III
	Chairman, President, Chief Executive		Chief Financial Officer
	Officer, and Director (Principal Executive		(Principal Financial Officer)
	Officer)
		By:	/s/ Nancy E. Maloney
			Nancy E. Maloney
			Executive Vice President, Controller
			(Principal Accounting Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities indicated on the 22nd day of February, 2017.

Lizabeth Ardisana *

Lizabeth Ardisana

Director

Ann B. Crane *

Ann B. Crane

Director

Robert S. Cubbin *

Robert S. Cubbin

Director

Steven G. Elliott *

Steven G. Elliott

Director

Michael J. Endres *

Michael J. Endres

Director

Gina D. France *

Gina D. France

Director

John B. Gerlach, Jr. *

192

John B. Gerlach, Jr.

Director

J. Michael Hochschwender *

J. Michael Hochschwender

Director

John C. Inglis *

John C. Inglis

Director

Peter J. Kight *

Peter J. Kight

Director

Jonathan A. Levy *

Jonathan A. Levy

Director

Eddie R. Munson *

Eddie R. Munson

Director

Richard W. Neu *

Richard W. Neu

Director

David L. Porteous *

David L. Porteous

Director

Kathleen H. Ransier *

Kathleen H. Ransier

Director

*/s/ Richard A. Cheap

Richard A. Cheap

Attorney-in-fact for each of the persons indicated

193

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 free of charge at our Internet web site. The address of the site is http://www.huntington.com. Except as specifically incorporated by reference into this Annual Report on Form 10-K, 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
2.1	Agreement and Plan of Merger, dated as of January 25, 2016, by and among Huntington Bancshares Incorporated, FirstMerit Corporation, and West Subsidiary Corporation.	Current Report on Form 8-K dated January 28, 2016.	001-34073	2.1
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	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
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	* Form of Executive Agreement for certain executive officers.	Current Report on Form 8-K, dated November 28, 2012	001-34073	10.3
10.2	* Management Incentive Plan for Covered Officers as amended and restated effective for plan years beginning on or after January 1, 2011.	Definitive Proxy Statement for the 2011 Annual Meeting of Shareholders	001-34073	A
10.3	* Huntington Supplemental Retirement Income Plan, amended and restated, effective December 31, 2013.	Annual Report on Form 10-K for the year ended December 31, 2013.	001-34073	10.3
10.4	* Deferred Compensation Plan and Trust for Directors	Post-Effective Amendment No. 2 to Registration Statement on Form S-8 filed on January 28, 1991.	33-10546	4(a)
10.5	* Deferred Compensation Plan and Trust for Huntington Bancshares Incorporated Directors	Registration Statement on Form S-8 filed on July 19, 1991.	33-41774	4(a)
10.6	* First Amendment to Huntington Bancshares Incorporated Deferred Compensation Plan and Trust for Huntington Bancshares Incorporated Directors	Quarterly Report on Form 10-Q for the quarter ended March 31, 2001	000-02525	10(q)
10.7	* Executive Deferred Compensation Plan, as amended and restated on January 1, 2012.	Annual Report on Form 10-K for the year ended December 31, 2012	001-34073	10.7
10.8	* The Huntington Supplemental Stock Purchase and Tax Savings Plan and Trust, amended and restated, effective January 1, 2014	Annual Report on Form 10-K for the year ended December 31, 2013.	001-34073	10.8
10.9	* Form of Employment Agreement between Stephen D. Steinour and Huntington Bancshares Incorporated effective December 1, 2012.	Current Report on Form 8-K dated November 28, 2012.	001-34073	10.1
10.10	* Form of Executive Agreement between Stephen D. Steinour and Huntington Bancshares Incorporated effective December 1, 2012.	Current Report on Form 8-K dated November 28, 2012.	001-34073	10.2

194

10.11	* Restricted Stock Unit Grant Notice with three year vesting	Current Report on Form 8-K dated July 24, 2006	000-02525	99.1
10.12	* Restricted Stock Unit Grant Notice with six month vesting	Current Report on Form 8-K dated July 24, 2006	000-02525	99.2
10.13	* Restricted Stock Unit Deferral Agreement	Current Report on Form 8-K dated July 24, 2006	000-02525	99.3
10.14	* Director Deferred Stock Award Notice	Current Report on Form 8-K dated July 24, 2006	000-02525	99.4
10.15	* Huntington Bancshares Incorporated 2007 Stock and Long-Term Incentive Plan	Definitive Proxy Statement for the 2007 Annual Meeting of Stockholders	000-02525	G
10.16	* First Amendment to the 2007 Stock and Long-Term Incentive Plan	Quarterly Report on Form 10-Q for the quarter ended September 30, 2007	000-02525	10.7
10.17	* Second Amendment to the 2007 Stock and Long-Term Incentive Plan	Definitive Proxy Statement for the 2010 Annual Meeting of Shareholders	001-34073	A
10.18	* 2009 Stock Option Grant Notice to Stephen D. Steinour.	Quarterly Report on Form 10-Q for the quarter ended March 31, 2009.	001-34073	10.1
10.19	* Form of Consolidated 2012 Stock Grant Agreement for Executive Officers Pursuant to Huntington’s 2012 Long-Term Incentive Plan.	Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.	001-34073	10.2
10.20	* Form of 2014 Restricted Stock Unit Grant Agreement for Executive Officers	Quarterly Report on Form 10-Q dated July 30, 2014	001-34073	10.1
10.21	* Form of 2014 Stock Option Grant Agreement for Executive Officers	Quarterly Report on Form 10-Q for the quarter ended June 30, 2014	001-34073	10.2
10.22	* Form of 2014 Performance Stock Unit Grant Agreement for Executive Officers	Quarterly Report on Form 10-Q for the quarter ended June 30, 2014	001-34073	10.3
10.23	* Form of 2014 Restricted Stock Unit Grant Agreement for Executive Officers Version II	Quarterly Report on Form 10-Q for the quarter ended June 30, 2014	001-34073	10.4
10.24	* Form of 2014 Stock Option Grant Agreement for Executive Officers Version II	Quarterly Report on Form 10-Q for the quarter ended June 30, 2014	001-34073	10.5
10.25	*Form of 2014 Performance Stock Unit Grant Agreement for Executive Officers Version II	Quarterly Report on Form 10-Q for the quarter ended June 30, 2014	001-34073	10.6
10.26	*Huntington Bancshares Incorporated 2012 Long-Term Incentive Plan. Definitive Proxy Statement for the 2012 Annual Meeting of Shareholders.	Definitive Proxy Statement for the 2012 Annual Meeting of Shareholders.	001-34073	A
10.27	*Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan. Definitive Proxy Statement for the 2015 Annual Meeting of Shareholders	Definitive Proxy Statement for the 2015 Annual Meeting of Shareholders	001-34073	A
10.28	*Form of 2015 Stock Option Grant Agreement	Quarterly Report on Form 10-Q for the quarter ended June 30, 2015.	001-34073	10.2
10.29	*Form of 2015 Restricted Stock Unit Grant Agreement.	Quarterly Report on Form 10-Q for the quarter ended June 30, 2015.	001-34073	10.3
10.30	*Form of 2015 Performance Share Unit Grant Agreement.	Quarterly Report on Form 10-Q for the quarter ended June 30, 2015.	001-34073	10.4
10.31	*Huntington Bancshares Incorporated Restricted Stock Unit Grant Agreement.	Quarterly Report on Form 10-Q for the quarter ended June 30, 2015.	001-34073	10.1
12.1	Ratio of Earnings to Fixed Charges.
12.2	Ratio of Earnings to Fixed Charges and Preferred Dividends.
14.1	Code of Business Conduct and Ethics dated January 14, 2003 and revised on January 15, 2013 and Financial Code of Ethics for Chief Executive Officer and Senior Financial Officers, adopted January 18, 2003 and revised on October 15, 2014, are available on our website at https://www.huntington.com/us/corp_governance.htm
21.1	Subsidiaries of the Registrant
23.1	Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
23.2	Consent of Deloitte & Touche LLP, Independent Registered Public Accounting Firm.
24.1	Power of Attorney
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-K Report for the year ended December 31, 2016, formatted in XBRL: (1) Consolidated Balance Sheets, (2) Consolidated Statements of Income, (3), Consolidated Statements of Comprehensive Income, (4) Consolidated Statements of Changes in Shareholders’ Equity, (5) Consolidated Statements of Cash Flows, and (6) the Notes to the Consolidated Financial Statements.
	* Denotes management contract or compensatory plan or arrangement.

195

EX-12.1

Exhibit 12.1

Ratio of Earnings to Fixed Charges	Twelve Months Ended December 31,
	2016			2015			2014			2013			2012
(dollar amounts in thousands of dollars)
Earnings:
Income before income taxes	$	919,762		$	913,605		$	852,985		$	868,756		$	833,581
Add: Fixed charges, excluding interest on deposits	181,235			99,613			70,692			57,027			74,379
Earnings available for fixed charges, excluding interest on deposits	1,100,997			1,013,218			923,677			925,783			907,960
Add: Interest on deposits	102,004			82,174			86,453			116,241			162,167
Earnings available for fixed charges, including interest on deposits	$	1,203,001		$	1,095,392		$	1,010,130		$	1,042,024		$	1,070,127
Fixed Charges:
Interest expense, excluding interest on deposits	$	160,791		$	81,610		$	52,868		$	39,788		$	57,572
Interest factor in net rental expense	20,444			18,003			17,824			17,239			16,807
Total fixed charges, excluding interest on deposits	181,235			99,613			70,692			57,027			74,379
Add: Interest on deposits	102,004			82,174			86,453			116,241			162,167
Total fixed charges, including interest on deposits	$	283,239		$	181,787		$	157,145		$	173,268		$	236,546
Ratio of Earnings to Fixed Charges
Excluding interest on deposits	6.07		X	10.17		X	13.07		X	16.23		X	12.21
Including interest on deposits	4.25		X	6.03		X	6.43		X	6.01		X	4.52

EX-12.2

Exhibit 12.2

Ratio of Earnings to Fixed Charges and Preferred Stock Dividends	Twelve Months Ended December 31,
	2016			2015			2014			2013			2012
(dollar amounts in thousands of dollars)
Earnings:
Income before income taxes	$	919,762		$	913,605		$	852,985		$	868,756		$	833,581
Add: Fixed charges, excluding interest on deposits and preferred stock dividends	181,235			99,613			70,692			57,027			74,379
Earnings available for fixed charges, excluding interest on deposits	1,100,997			1,013,218			923,677			925,783			907,960
Add: Interest on deposits	102,004			82,174			86,453			116,241			162,167
Earnings available for fixed charges, including interest on deposits	$	1,203,001		$	1,095,392		$	1,010,130		$	1,042,024		$	1,070,127
Fixed Charges:
Interest expense, excluding interest on deposits	$	160,791		$	81,610		$	52,868		$	39,788		$	57,572
Interest factor in net rental expense	20,444			18,003			17,824			17,239			16,807
Preferred stock dividends	65,274			31,873			31,854			31,869			31,989
Total fixed charges, excluding interest on deposits	246,509			131,486			102,546			88,896			106,368
Add: Interest on deposits	102,004			82,174			86,453			116,241			162,167
Total fixed charges, including interest on deposits	$	348,513		$	213,660		$	188,999		$	205,137		$	268,535
Ratio of Earnings to Fixed Charges and Preferred Stock Dividends
Excluding interest on deposits	4.47		X	7.71		X	9.01		X	10.41		X	8.54
Including interest on deposits	3.45		X	5.13		X	5.34		X	5.08		X	3.99

EX-21.1

Exhibit 21.1

SUBSIDIARIES OF HUNTINGTON BANCSHARES INCORPORATED

The direct and indirect subsidiaries of Huntington Bancshares Incorporated at December 31, 2016, are listed below. The state or jurisdiction of incorporation or organization of each subsidiary (unless otherwise noted) is Ohio.

41 South High Ltd. **

791, 801, AND 803 W. Big Beaver Road, LLC

7575 Corporation

Camco Statutory Trust 1 (Connecticut)

CASCADE Holdings, LLC (Illinois)

Citizens Savings Corporation of Stark County

Community Bank Audit Services, Inc. (Michigan)

Community Bank Insurance Agency, Inc. (Michigan)

CPHCSUB, LLC

Creditron Canada, Inc. (Ontario, Canada) **

Creditron Corporation (Illinois) **

Creditron, Inc.

CREPD, LLC

Cumberland Trail Golf Course, LLC

DKG Audit Services, LLC (f.k.a. Cumberland Trail Development, LLC)

FirstMerit Advisors, Inc.

FirstMerit Capital Trust I (Delaware)

FirstMerit Community Development Corporation

FirstMerit Equipment Finance, Inc.

FirstMerit Financial Services, Inc.

FirstMerit Insurance Agency, Inc.

FirstMerit Insurance Group, Inc.

FirstMerit Mortgage Corporation

FirstMerit Mortgage Reinsurance Co., Inc. (Hawaii)

FirstMerit Moss Creek Ventures, LLC

FirstMerit Risk Management, Inc. (Vermont)

FirstMerit Securities, Inc.

FirstMerit Title Agency, LTD.

FMRC, Inc. (Delaware)

FMSC, Inc. (Formerly Signal Securitization Corp.) (Delaware)

Forty-One Corporation

Fourteen Corporation

Franklin Mortgage Asset Trust 2009-A (Delaware)

Haberer Registered Investment Advisor, Inc.

HBI Payments Holdings, Inc.

HBI Specialty Insurance, Inc.

HBI Title Services, Inc.

HCFFL, LLC (Nevada)

Henry Acquisitions, Inc.

HLFB, Inc. (Nevada)

HMC Reinsurance Company (Vermont)

HMFAL, LLC

HNB I LLC (Delaware)

HPAL Holdings, LLC (Nevada)

HPAL, LLC (Nevada)

HPAL II, LLC (Nevada)

HPCDS, Inc. (Nevada)

HPCKAL, LLC (Nevada)

HPCF Corporation (Nevada)

HPCLI, Inc.

HREIC Holdings, LLC

Huntington Auto Trust 2011-1 (Delaware)

Huntington Auto Trust 2012-1 (Delaware)

Huntington Auto Trust 2012-2 (Delaware)

Huntington Auto Trust 2015-1 (Delaware)

Huntington Auto Trust 2016-1 (Delaware)

Huntington Bancshares Financial Corporation

Huntington Bancshares Florida, Inc.

Huntington Capital Financing Holdings I, Inc. (Nevada)

Huntington Capital Financing Holdings II, Inc. (Nevada)

Huntington Capital Financing OREO, Inc. (Nevada)

Huntington Capital I (Delaware)

Huntington Capital II (Delaware)

Huntington Capital IV (Delaware)

Huntington Capital V (Delaware)

Huntington Capital VI (Delaware)

Huntington Captive Insurance Company (Arizona)

Huntington Equipment Finance, Inc. (Delaware)

Huntington Equity Investments, LLC

Huntington Finance LLC

Huntington Funding, LLC (Delaware)

Huntington Insurance, Inc.

Huntington LT (Delaware)

Huntington Merchant Services, L.L.C. (Delaware) **

Huntington Mezzanine Opportunities Inc.

Huntington Municipal Fund I, Inc.

Huntington Municipal Fund II, Inc.

Huntington Municipal Securities, Inc. (Nevada) *

Huntington New Markets, CDE, LLC

Huntington Preferred Capital Holdings, Inc. (Indiana)

Huntington Preferred Capital II, Inc.

Huntington Preferred Capital, Inc.

Huntington Public Capital Corporation (Nevada)

Huntington Residential Mortgage Securities, Inc.

Huntington Trade Services, Inc.

Huntington Technology Finance, Inc. (Delaware)

Huntington Technology Funding, LLC (Delaware)

Huntington West, Inc. (Delaware)

Inner City Partnerships, LLC **

Metropolitan Savings Service Corporation

Mezzanine Opportunities LLC **

Mezzanine Opportunities II LLC **

Midwest Funding, LLC (Illinois)

Mobile Consultants, Inc.

Netvantage, Inc. (Maryland)

Prospect Trust I (Delaware)

Rate Risk Management Advisors, LLC

Sky Capital LLC (Delaware) *

Sky Financial Capital Trust III (Delaware)

Sky Financial Capital Trust IV (Delaware)

STB Auto Exchange, LLC

The Derlam Company

The Huntington Capital Investment Company

The Huntington Capital Investment Company II

The Huntington Community Development Corporation

The Huntington Investment Company

The Huntington Kentucky, LLC (Kentucky)

The Huntington Leasing Company

The Huntington National Bank (United States)

The Huntington Real Estate Investment Company

The Huntington Real Estate Investment Company II

Thirty-Seven Corporation

Tower Hill Securities, Inc. (Nevada)

Unizan Capital, LLC (Delaware) *

WMC Acquisition LLC (Indiana)

*    - Owned jointly between The Huntington National Bank and Huntington Bancshares Incorporated.

**    - Less than 100% owned.

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-212820) and Form S-8 (Nos. 33-10546, 33-41774, 33-44208, 333-136692, 333-140897, 333-144403, 333-153573, 333-158335, 333-161779, 333-161780, 333-168824, 333-173831, 333-183325, 333-187725, 333-192600, 333-202349, 333-206720, and 333-209962) of Huntington Bancshares Incorporated of our report dated February 22, 2017 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Columbus, Ohio

February 22, 2017

EX-23.2

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements of Huntington Bancshares Incorporated and subsidiaries (the “Company”) of our report dated February 13, 2015, relating to the consolidated financial statements of the Company appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2016.

Form S-8 No. 33-10546 pertaining to Huntington Bancshares Incorporated Deferred Compensation Plan for Directors Post-Effective Amendment No. 2 dated January 28, 1991;

Form S-8 No. 33-41774 pertaining to Huntington Bancshares Incorporated Deferred Compensation Plan for Huntington Bancshares Incorporated Directors dated July 19, 1991;

Form S-8 No. 33-44208 pertaining to Huntington Supplemental Executive Stock Purchase and Tax Savings Plan and Trust Post-Effective Amendment No. 1 dated April 1, 1998;

Form S-8 No. 333-136692 pertaining to Huntington Bancshares Incorporated Executive Deferred Compensation Plan dated August 17, 2006;

Form S-8POS No. 333-140897 pertaining to Sky Financial Group, Inc. 2002 Stock Option and Stock Appreciation Rights Plan, as amended; Sky Financial Group Inc. 1998 Stock Option Plan for Employees; Second Restatement of the Sky Financial Group, Inc. Amended and Restated 1998 Stock Option Plan for Directors; Century Financial Corporation Stock Option Plan; Amended and Restated Mid Am, Inc. 1997 Stock Option Plan; and Citizens Bancshares, Inc. Non-Statutory Sock Option and Stock Appreciation Rights Plan dated July 2, 2007;

Form S-8 No. 333-144403 pertaining to Huntington Bancshares Incorporated 2007 Stock and Long-Term Incentive Plan; Sky Financial Group, Inc. Profit Sharing, 401(k) and ESOP Plan, as amended; Sky Financial Group, Inc. Non-Qualified Retirement Plan, as amended; Sky Financial Group, Inc. Non-Qualified Retirement Plan II, as amended; and Inducement Grant dated July 6, 2007;

Form S-8 No. 333-153573 pertaining to the Huntington Investment and Tax Savings Plan dated September 18, 2008;

Form S-8 No. 333-158335 pertaining to the Huntington Supplemental Stock Purchase and Tax Savings Plan and Trust dated March 31, 2009;

Form S-8 No. 333-161779 pertaining to the Huntington Bancshares Incorporated Deferred Compensation Plan and Trust for Huntington Bancshares Incorporated Directors dated September 8, 2009;

Form S-8 No. 333-161780 pertaining Huntington Bancshares Incorporated Amended and Restated 2007 Stock and Long-Term Incentive Plan dated September 8, 2009;

Form S-8 No. 333-168824 pertaining Huntington Bancshares Incorporated Second Amended and Restated 2007 Stock and Long-Term Incentive Plan dated August 13, 2010;

Form S-8 No. 333-173831 pertaining to the Huntington Supplemental Stock Purchase and Tax Savings Plan and Trust dated May 2, 2011;

Form S-8 No. 333-183325 pertaining to the Huntington Bancshares Incorporated 2012 Long-Term Incentive Plan, dated August 15, 2012;

Form S-8 No. 333-187725 pertaining to the issuance of common stock under the Huntington Investment and Tax Savings Plan, dated April 4, 2013;

Form S-8 POS No. 333-192600 pertaining to Camco Financial Corporation 2013 Equity Plan, Camco Financial Corporation 2010 Equity Plan, 2002 Equity Incentive Plan, Westwood Homestead Financial 1997 Stock Option Plan, Employment Agreement, effective as of December 31, 2008, by and among Camco Financial Corporation, Advantage Bank and James E. Huston, dated March 5, 2014;

Form S-8 No. 333-202349 pertaining to the Huntington Bancshares Incorporated Deferred Compensation Plan and Trust for Huntington Bancshares Incorporated Directors, dated February 27, 2015;

Form S-8 No. 333-206720 pertaining to the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan, dated September 1, 2015;

Form S-3ASR No. 333-212820 pertaining to Huntington Bancshares Incorporated automatic shelf registration statement for Common Stock, Preferred Stock, Depositary Shares, Senior Debt Securities, Subordinated Debt Securities, Junior Subordinated Debt Securities, Warrants, Purchase Contracts of Huntington Bancshares Incorporated, Guarantees of Payment by Huntington Bancshares Incorporated, and Units, dated August 2, 2016;

Form S-8 POS No. 333-209962 pertaining to the FirstMerit Corporation 2011 Equity Incentive Plan and the FirstMerit Corporation and Affiliates Employees’ Salary Savings Retirement Plan, dated August 16, 2016.

/s/ Deloitte & Touche LLP

Columbus, Ohio

February 22, 2017

EX-24.1

Exhibit 24.1

POWER OF ATTORNEY

Each director and officer of Huntington Bancshares Incorporated (the Corporation), whose signature appears below hereby appoints Richard A. Cheap, Stephen D. Steinour, and Howell D. McCullough III, or any of them, as his or her attorney-in-fact, to sign, in his or her name and behalf and in any and all capacities stated below, and to cause to be filed with the Securities and Exchange Commission, the Corporation’s Annual Report on Form 10-K (the Annual Report) for the fiscal year ended December 31, 2016, and likewise to sign and file any amendments, including post-effective amendments, to the Annual Report, and the Corporation hereby also appoints such persons as its attorneys-in-fact and each of them as its attorney-in-fact with like authority to sign and file the Annual Report and any amendments thereto in its name and behalf, each such person and the Corporation hereby granting to such attorney-in-fact full power of substitution and revocation, and hereby ratifying all that such attorney-in-fact or his substitute may do by virtue hereof.

IN WITNESS WHEREOF, the undersigned have executed this Power of Attorney, in counterparts if necessary, effective as of February 22, 2017.

DIRECTORS/OFFICERS:

Signature / Title

/s/ Stephen D. Steinour

Stephen D. Steinour

Chairman, President, Chief Executive Officer, and Director (Principal Executive Officer)

/s/ Howell D. McCullough III

Howell D. McCullough III

Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer)

/s/ Nancy E. Maloney

Nancy E. Maloney

Executive Vice President and Controller (Principal Accounting Officer)

/s/ Lizabeth Ardisana *

Lizabeth Ardisana

Director

/s/ Ann B. Crane *

Ann B. Crane

Director

/s/ Robert S. Cubbin *

Robert S. Cubbin

Director

/s/ Steven G. Elliott *

Steven G. Elliott

Director

/s/ Michael J. Endres *

Michael J. Endres

Director

/s/ Gina D. France *

Gina D. France

Director

/s/ John B. Gerlach, Jr. *

John B. Gerlach, Jr.

Director

/s/ J. Michael Hochschwender *

J. Michael Hochschwender

Director

/s/ John C. Inglis *

John C. Inglis

Director

/s/ Peter J. Kight *

Peter J. Kight

Director

/s/ Jonathan A. Levy *

Jonathan A. Levy

Director

/s/ Eddie R. Munson *

Eddie R. Munson

Director

/s/ Richard W. Neu *

Richard W. Neu

Director

/s/ David L. Porteous *

David L. Porteous

Director

/s/ Kathleen H. Ransier *

Kathleen H. Ransier

Director

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Stephen D. Steinour, certify that:

1. I have reviewed this Annual Report on Form 10-K 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 officers 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: February 22, 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 Annual Report on Form 10-K 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 officers 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: February 22, 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 Annual Report of Huntington Bancshares Incorporated (the Company) on Form 10-K for the year ended December 31, 2016, 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) 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

February 22, 2017

EX-32.2

Exhibit 32.2

SECTION 1350 CERTIFICATION

In connection with the Annual Report of Huntington Bancshares Incorporated (the “Company”) on Form 10-K for the year ended December 31, 2016, 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) 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

February 22, 2017

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 31, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	HUNTINGTON BANCSHARES INC/MD
Entity Central Index Key	0000049196
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
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 Public Float			$ 6,959,125,311
Entity Common Stock, Shares Outstanding		1,085,887,404

XML

Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks		$ 1,384,770	$ 847,156
Interest-bearing deposits in banks		58,267	51,838
Trading account securities		133,295	36,997
Loans held for sale		512,951	474,621
Available-for-sale and other securities		15,562,837	8,775,441
Held-to-maturity securities		7,806,939	6,159,590
Loans and leases (includes $82,319 and $34,637 respectively, measured at fair value)
Commercial and industrial loans and leases		28,058,712	20,559,834
Commercial real estate loans		7,300,901	5,268,651
Automobile loans		10,968,782	9,480,678
Home equity loans		10,105,774	8,470,482
Residential mortgage loans		7,724,961	5,998,400
RV and marine finance loans		1,846,447	0
Other consumer loans	[1]	956,419	563,054
Loans and leases		66,961,996	50,341,099
Allowance for loan and lease losses		(638,413)	(597,843)
Net loans and leases		66,323,583	49,743,256
Bank owned life insurance		2,432,086	1,757,668
Premises and equipment		815,508	620,540
Goodwill		1,992,849	676,869
Other intangible assets		402,458	54,978
Servicing rights		225,578	189,237
Accrued income and other assets		2,062,976	1,630,110
Total assets		99,714,097	71,018,301
Deposits in domestic offices
Demand deposits—noninterest-bearing		22,835,798	16,479,984
Interest-bearing		52,771,919	38,547,587
Deposits in foreign offices		0	267,408
Deposits		75,607,717	55,294,979
Short-term borrowings		3,692,654	615,279
Long-term debt		8,309,159	7,041,364
Accrued expenses and other liabilities		1,796,421	1,472,073
Total liabilities		89,405,951	64,423,695
Commitments and contingencies
PreferredStockRedeemableandNonRedeemableValue		1,071,227	386,291
Preferred Stock, Value, Outstanding		1,071,227
Shareholders’ equity
Common stock		10,886	7,970
Capital surplus		9,881,277	7,038,502
Less treasury shares, at cost		(27,384)	(17,932)
Accumulated other comprehensive loss		(401,016)	(226,158)
Retained (deficit) earnings		(226,844)	(594,067)
Total shareholders’ equity		10,308,146	6,594,606
Total liabilities and shareholders’ equity		$ 99,714,097	$ 71,018,301
Common shares authorized (par value of $0.01) (in shares)		1,500,000,000	1,500,000,000
Common shares issued (in shares)		1,088,641,251	796,969,694
Common shares outstanding (in shares)		1,085,688,538	794,928,886
Treasury shares outstanding (in shares)		2,952,713	2,040,808
Preferred Stock, Shares Authorized		6,617,808	6,617,808
Preferred shares issued (in shares)		2,702,571	1,967,071
Preferred shares outstanding (in shares)		1,098,006	398,006
Series A Preferred Stock
Deposits in domestic offices
Preferred Stock, Value, Outstanding		$ 362,506
Shareholders’ equity
Total shareholders’ equity			$ 386,291
Preferred shares outstanding (in shares)		362,506
Series B Preferred Stock
Deposits in domestic offices
Preferred Stock, Value, Outstanding		$ 23,785
Shareholders’ equity
Preferred shares outstanding (in shares)		35,500

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

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Loans held for sale, fair value	$ 438,224	$ 337,577
Loans and leases, fair value	$ 82,319	$ 34,637
Shareholders’ equity
Common stock, par value (in usd per share)	$ 0.01	$ 0.01

XML

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest and fee income:
Loans and leases	$ 2,178,044	$ 1,759,525	$ 1,674,563
Available-for-sale and other securities
Taxable	221,782	202,104	171,080
Tax-exempt	58,853	42,014	28,965
Held-to-maturity securities	138,312	86,614	88,724
Other	35,122	24,264	13,130
Total interest income	2,632,113	2,114,521	1,976,462
Interest expense
Deposits	102,005	82,175	86,453
Short-term borrowings	5,140	1,584	2,940
Federal Home Loan Bank advances	274	586	1,011
Subordinated notes and other long-term debt	155,376	79,439	48,917
Total interest expense	262,795	163,784	139,321
Net interest income	2,369,318	1,950,737	1,837,141
Provision for credit losses	190,802	99,954	80,989
Net interest income after provision for credit losses	2,178,516	1,850,783	1,756,152
Service charges on deposit accounts	324,299	280,349	273,741
Cards and payment processing income	169,064	142,715	105,401
Mortgage banking income	128,257	111,853	84,887
Trust services	108,274	105,833	115,972
Insurance income	64,523	65,264	65,473
Brokerage income	61,834	60,205	68,277
Capital markets fees	59,527	53,616	43,731
Bank owned life insurance income	57,567	52,400	57,048
Gain on sale of loans	47,153	33,037	21,091
Net gains on sales of securities	2,035	3,184	17,554
Impairment losses recognized in earnings on available-for-sale securities	(2,119)	(2,440)	0
Other income	129,317	132,714	126,004
Total noninterest income	1,149,731	1,038,730	979,179
Personnel costs	1,349,124	1,122,182	1,048,775
Outside data processing and other services	304,743	231,353	212,586
Equipment	164,839	124,957	119,663
Net occupancy	153,090	121,881	128,076
Professional services	105,266	50,291	59,555
Marketing	62,957	52,213	50,560
Deposit and other insurance expense	54,107	44,609	49,044
Amortization of intangibles	30,456	27,867	39,277
Other expense	183,903	200,555	174,810
Total noninterest expense	2,408,485	1,975,908	1,882,346
Income before income taxes	919,762	913,605	852,985
Provision for income taxes	207,941	220,648	220,593
Net income	711,821	692,957	632,392
Dividends on preferred shares	65,274	31,873	31,854
Net income available to common shareholders	$ 646,547	$ 661,084	$ 600,538
Average common shares—basic (in shares)	904,438	803,412	819,917
Average common shares—diluted (in shares)	918,790	817,129	833,081
Per common share:
Net income - basic (in USD per share)	$ 0.72	$ 0.82	$ 0.73
Net income - diluted (in USD per share)	0.70	0.81	0.72
Cash dividends declared, prior period (in USD per share)	$ 0.29	$ 0.25	$ 0.21
Impairment losses on available-for-sale securities:
Total OTTI losses	$ (5,851)	$ (3,144)	$ 0
Noncredit-related portion of loss recognized in other comprehensive income	3,732	704	0
Impairment losses recognized in earnings on available-for-sale securities	$ (2,119)	$ (2,440)	$ 0

XML

Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 711,821	$ 692,957	$ 632,392
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, Net of Tax, Portion Attributable to Parent	585	12,673	8,780
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax	585	12,673	8,780
Unrealized gains (losses) on available-for-sale and other securities:
Unrealized net gains (losses) on available-for-sale and other securities arising during the period, net of reclassification for net realized gains and losses	(201,599)	(19,757)	45,783
Total unrealized gains (losses) on available-for-sale securities	(201,014)	(7,084)	54,563
Unrealized gains on cash flow hedging derivatives, net of reclassifications to income	1,314	8,285	6,611
Change in accumulated unrealized gains (losses) for pension and other post-retirement obligations	24,842	(5,067)	(69,457)
Other comprehensive loss, net of tax	(174,858)	(3,866)	(8,283)
Comprehensive income	$ 536,963	$ 689,091	$ 624,109

XML

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)	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)	Capital Surplus	Series D Preferred Stock	Series D Preferred Stock Retained Earnings (Deficit)
Beginning balance (in shares) at Dec. 31, 2013		832,217		1,331
Beginning balance at Dec. 31, 2013	$ 6,090,153	$ 8,322	$ 7,398,515	$ (9,643)	$ (214,009)	$ (1,479,324)	$ 386,292
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	632,392					632,392
Other comprehensive income (loss)	(8,283)				(8,283)
Purchase of common stock (in shares)		(35,709)
Repurchases of common stock	(334,429)	$ (357)	(334,072)
Cash dividends declared:
Common shares dividend (in USD per share)	(171,692)					(171,692)
Preferred shares dividend (in USD per share)							(30,813)	$ (30,813)	$ (1,041)	$ (1,041)
Shares issued pursuant to acquisition (in shares)		8,694
Shares issued pursuant to acquisition	91,664	$ 87	91,577
Recognition of the fair value of share-based compensation	43,666		43,666
Other share based compensation activity, (in shares)		6,752
Other share-based compensation activity	(15,513)	$ (68)	(17,219)			(1,774)
Other (in shares)		(1,182)		(351)
Other	1,040	$ (11)	4,840	$ (3,739)		(72)
Ending balance (in share) at Dec. 31, 2014		813,136		1,682
Ending balance at Dec. 31, 2014	6,328,170	$ 8,131	7,221,745	$ (13,382)	(222,292)	(1,052,324)	386,292
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	692,957					692,957
Other comprehensive income (loss)	(3,866)				(3,866)
Purchase of common stock (in shares)		(23,036)
Repurchases of common stock	(251,844)	$ (230)	(251,614)
Cash dividends declared:
Common shares dividend (in USD per share)	(200,197)					(200,197)
Preferred shares dividend (in USD per share)							(30,813)	(30,813)	(1,059)	(1,059)
Conversion of stock (in share)	0		1				(1)
Recognition of the fair value of share-based compensation	51,415		51,415
Other share based compensation activity, (in shares)		6,784
Other share-based compensation activity	(13,492)	$ (68)	(16,068)			(2,644)
Other (in shares)		(86)		(359)
Other	(3,649)	$ (1)	887	$ (4,550)		13
Ending balance (in share) at Dec. 31, 2015		796,970		(2,041)
Ending balance at Dec. 31, 2015	6,594,606	$ 7,970	7,038,502	$ (17,932)	(226,158)	(594,067)	386,291
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	711,821					711,821
Other comprehensive income (loss)	(174,858)				(174,858)
Cash dividends declared:
Common shares dividend (in USD per share)	(274,780)					(274,780)
Preferred shares dividend (in USD per share)							$ (30,813)	$ (30,813)	$ (1,208)	$ (1,208)	$ (2,628)	$ (2,628)		$ (30,625)	$ (30,625)
Shares issued pursuant to acquisition (in shares)		285,425
Shares issued pursuant to acquisition	2,766,773	$ 2,854	2,763,919
Stock Issued During Period, Value, Other	104,320										$ 100,000		$ 4,320
Stock Issued During Period, Value, New Issues	584,936													$ 584,936
Recognition of the fair value of share-based compensation	65,608		65,608
Other share based compensation activity, (in shares)		5,924
Other share-based compensation activity	(988)	$ (59)	(5,483)			4,554
Other (in shares)		322		(912)
Other	(5,994)	$ 3	3,445	$ (9,452)		10
Ending balance (in share) at Dec. 31, 2016		1,088,641		(2,953)
Ending balance at Dec. 31, 2016	$ 10,308,146	$ 10,886	$ 9,881,277	$ (27,384)	$ (401,016)	$ (226,844)

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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash dividends declared:
Common stock, cash dividend per share (in USD per share)	$ 0.29	$ 0.25	$ 0.21
Series A Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	85	85	85
Series B Preferred Stock
Cash dividends declared:
Preferred stock dividend per share (in usd per share)	$ 34.03	$ 29.84	$ 29.33

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 711,821	$ 692,957	$ 632,392
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Impairment of goodwill	0	0	3,000
Provision for credit losses	190,802	99,954	80,989
Depreciation and amortization	379,772	341,281	332,832
Share-based compensation expense	65,608	51,415	43,666
Net gains on sales of securities	(2,035)	(3,184)	(17,554)
Impairment losses recognized in earnings on available-for-sale securities	2,119	2,440	0
Net Change in:
Trading account securities	(96,298)	5,194	(6,618)
Loans held for sale	(123,047)	53,765	(58,803)
Accrued income and other assets	(95,758)	(233,624)	(438,366)
Deferred income taxes	164,747	68,776	35,174
Accrued expense and other liabilities	4,001	(34,846)	282,074
Other, net	13,570	(10,766)	0
Net cash provided by (used for) operating activities	1,215,302	1,033,362	888,786
Investing activities
Decrease (increase) in interest-bearing deposits in banks	26,067	12,721	(7,516)
Net cash (paid) received in acquisitions	(133,218)	(457,836)	691,637
Proceeds from:
Maturities and calls of available-for-sale securities	2,113,383	1,907,669	1,480,505
Maturities of held-to-maturity securities	1,212,179	594,905	452,785
Sales of available-for-sale securities	6,154,326	163,224	1,152,907
Purchases of available-for-sale securities	(10,887,582)	(4,506,764)	(4,553,857)
Purchases of held-to-maturity securities	0	(379,351)	0
Net proceeds from sales of loans	2,981,184	1,304,309	353,811
Net loan and lease activity, excluding sales and purchases	(3,950,901)	(3,186,775)	(4,232,350)
Proceeds from sale of operating lease assets	0	2,227	17,591
Purchases of premises and equipment	(120,438)	(93,097)	(58,862)
Proceeds from sales of other real estate	50,299	36,038	38,479
Purchases of loans and leases	(410,625)	(333,726)	(345,039)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(479,571)	0	0
Purchases of customer lists	0	0	(946)
Other, net	(456)	7,802	6,074
Net cash provided by (used for) investing activities	(3,445,353)	(4,928,654)	(5,004,781)
Financing activities
Increase (decrease) in deposits	(292,259)	3,644,492	2,923,928
Increase (decrease) in short-term borrowings	1,899,561	(1,818,947)	118,698
Sale of deposits	0	(47,521)	0
Proceeds from issuance of long-term debt	2,127,750	3,232,227	2,000,000
Maturity/redemption of long-term debt	(1,274,838)	(1,036,717)	(198,922)
Dividends paid on preferred stock	(54,380)	(31,872)	(31,854)
Dividends paid on common stock	(245,208)	(192,518)	(166,935)
Repurchase of common stock	0	(251,844)	(334,429)
Proceeds from stock options exercised	16,981	19,000	17,710
Net proceeds from issuance of common stock	0	0	2,597
Net proceeds from issuance of preferred stock	584,936	0	0
Other, net	5,122	5,583	4,635
Net cash provided by (used for) financing activities	2,767,665	3,521,883	4,335,428
Increase (decrease) in cash and cash equivalents	537,614	(373,409)	219,433
Cash and cash equivalents at beginning of period	847,156	1,220,565	1,001,132
Cash and cash equivalents at end of period	1,384,770	847,156	1,220,565
Supplemental disclosures:
Interest paid	241,073	153,590	131,488
Income taxes paid	4,979	150,403	139,918
Non-cash activities:
Loans transferred to held-for-sale from portfolio	3,436,692	1,727,440	96,643
Loans transferred to portfolio from held-for-sale	481,516	278,080	45,240
Transfer of loans to OREO	78,693	24,625	39,066
Transfer of securities to held-to-maturity from available-for-sale	$ 2,870,257	$ 3,000,180	$ 0

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SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations — Huntington Bancshares Incorporated (Huntington or the Company) is a multi-state diversified regional bank holding company organized under Maryland law in 1966 and headquartered in Columbus, Ohio. Through its subsidiaries, including its bank subsidiary, The Huntington National Bank (the Bank), Huntington is engaged in providing full-service commercial, small business, consumer banking services, mortgage banking services, automobile financing, recreational vehicle and marine financing, equipment leasing, investment management, trust services, brokerage services, customized insurance programs, and other financial products and services. Huntington’s banking offices are located in Ohio, Illinois, Michigan, Pennsylvania, Indiana, West Virginia, Wisconsin and Kentucky. 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.

Basis of Presentation — The Consolidated Financial Statements include the accounts of Huntington and its majority-owned subsidiaries and are presented in accordance with GAAP. All intercompany transactions and balances have been eliminated in consolidation. Companies in which Huntington holds more than a 50% voting equity interest, or a controlling financial interest, or are a VIE in which Huntington has the power to direct the activities of an entity that most significantly impact the entity’s economic performance and has an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are consolidated. VIEs are legal entities with insubstantial equity, whose equity investors lack the ability to make decisions about the entity’s activities, or whose equity investors do not have the obligation to absorb losses or the right to receive the residual returns of the entity if they occur. VIEs in which Huntington does not hold the power to direct the activities of the entity that most significantly impact the entity’s economic performance or does not have an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are not consolidated. For consolidated entities where Huntington holds less than a 100% interest, Huntington recognizes non-controlling interest (included in shareholders’ equity) for the equity held by others and non-controlling profit or loss (included in noninterest expense) for the portion of the entity’s earnings attributable to other’s interests. Investments in companies that are not consolidated are accounted for using the equity method when Huntington has the ability to exert significant influence. Those investments in nonmarketable securities for which Huntington does not have the ability to exert significant influence are generally accounted for using the cost method. Investments in private investment partnerships that are accounted for under the equity method or the cost method are included in Accrued income and other assets and Huntington’s proportional interest in the equity investments’ earnings are included in other noninterest income. Investment interests accounted for under the cost and equity methods are periodically evaluated for impairment.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that significantly affect amounts reported in the Consolidated Financial Statements. Huntington utilizes processes that involve the use of significant estimates and the judgments of management in determining the amount of its allowance for credit losses, income taxes deferred tax assets, and contingent liabilities, as well as fair value measurements of investment securities, derivatives, goodwill, other intangible assets, pension assets and liabilities, short-term borrowings, mortgage servicing rights, and loans held for sale. As with any estimate, actual results could differ from those estimates.

For statements 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.

Certain prior period amounts have been reclassified to conform to the current year’s presentation.

Resale and Repurchase Agreements — Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions and are recorded at the amounts at which the securities were acquired or sold plus accrued interest. The fair value of collateral either received from or provided to a third-party is continually monitored and additional collateral is obtained or requested to be returned to Huntington in accordance with the agreement.

Securities — Securities purchased with the intention of recognizing short-term profits or which are actively bought and sold are classified as trading account securities and reported at fair value. The unrealized gains or losses on trading account securities are recorded in other noninterest income, except for gains and losses on trading account securities used to economically hedge the fair value of MSRs, which are included in mortgage banking income. Debt securities purchased in which Huntington has the positive intent and ability to hold to their maturity are classified as held-to-maturity securities. Held-to-maturity securities are recorded at amortized cost. All other debt and equity securities are classified as available-for-sale and other securities. Unrealized gains or losses on available-for-sale and other securities are reported as a separate component of accumulated OCI in the Consolidated Statements of Changes in Shareholders’ Equity. Credit-related declines in the value of debt securities that are considered OTTI are recorded in noninterest income.

Huntington evaluates its investment securities portfolio on a quarterly basis for indicators of OTTI. Huntington assesses whether OTTI has occurred when the fair value of a debt security is less than the amortized cost basis at the balance sheet date. Management reviews the amount of unrealized loss, the length of time the security has been in an unrealized loss position, the credit rating history, market trends of similar security classes, time remaining to maturity, and the source of both interest and principal payments to identify securities which could potentially be impaired. For those debt securities that Huntington intends to sell or is more likely than not required to sell, before the recovery of their amortized cost bases, the difference between fair value and amortized cost is considered to be OTTI and is recognized in noninterest income. For those debt securities that Huntington does not intend to sell or is not more likely than not required to sell, prior to expected recovery of amortized cost bases, the credit portion of the OTTI is recognized in noninterest income while the noncredit portion is recognized on OCI. In determining the credit portion, Huntington uses a discounted cash flow analysis, which includes evaluating the timing and amount of the expected cash flows. Non-credit-related OTTI results from other factors, including increased liquidity spreads and higher interest rates. Presentation of OTTI is made in the Consolidated Statements of Income on a gross basis with a reduction for the amount of OTTI recognized in OCI.

Securities transactions are recognized on the trade date (the date the order to buy or sell is executed). The carrying value plus any related accumulated OCI balance of sold securities is used to compute realized gains and losses. Interest and dividends on securities, including amortization of premiums and accretion of discounts using the effective interest method over the period to maturity, are included in interest income.

Nonmarketable equity securities include stock acquired for regulatory purposes, such as Federal Home Loan Bank stock and Federal Reserve Bank stock. These securities are accounted for at cost, evaluated for impairment, and included in available-for-sale and other securities.

Loans and Leases — Loans and direct financing leases for which Huntington has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are classified in the Consolidated Balance Sheets as loans and leases. Except for loans for which the fair value option has been elected, loans and leases are carried at the principal amount outstanding, net of unamortized deferred loan origination fees and costs and net of unearned income. Direct financing leases are reported at the aggregate of lease payments receivable and estimated residual values, net of unearned and deferred income. Interest income is accrued as earned using the interest method based on unpaid principal balances. Huntington defers the fees it receives from the origination of loans and leases, as well as the direct costs of those activities. Huntington also acquires loans at a premium and at a discount to their contractual values. Huntington amortizes loan discounts, premiums, and net loan origination fees and costs on a level-yield basis over the contractual lives of the related loans, which would not include purchased credit impaired loans.

Troubled debt restructurings are loans for which the original contractual terms have been modified to provide a concession 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. Modifications resulting in troubled debt restructurings may include changes to one or more terms of the loan, including but not limited to, a change in interest rate, an extension of the repayment period, a reduction in payment amount, and partial forgiveness or deferment of principal or accrued interest.

Residual values on leased equipment are evaluated quarterly for impairment. Impairment of the residual values of direct financing leases determined to be other than temporary is recognized by writing the leases down to fair value with a charge to other noninterest expense. Leased equipment residual value impairment will arise if the expected fair value is less than the carrying amount, net of estimated amounts reimbursable by the lessee. Future declines in the expected residual value of the leased equipment would result in expected losses of the leased equipment.

For leased equipment, the residual component of a direct financing lease represents the estimated fair value of the leased equipment at the end of the lease term. Huntington uses industry data, historical experience, and independent appraisals to establish these residual value estimates. Additional information regarding product life cycle, product upgrades, as well as insight into competing products are obtained through relationships with industry contacts and are factored into residual value estimates where applicable.

Loans Held for Sale — Loans in which Huntington does not have the intent and ability to hold for the foreseeable future are classified as loans held for sale. Loans held for sale (excluding loans originated or acquired with the intent to sell, which are carried at fair value) are carried at the lower of cost or fair value less cost to sell. The fair value option is generally elected for mortgage loans held for sale to facilitate hedging of the loans. The fair value of such loans is estimated based on the inputs that include prices of mortgage backed securities adjusted for other variables such as, interest rates, expected credit defaults and market discount rates. The adjusted value reflects the price we expect to receive from the sale of such loans.

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 $1.0 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, and residential mortgage loans, 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 recorded in Accrued expenses and other liabilities in the Consolidated Balance Sheets.

Nonaccrual 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.

Any loan in any portfolio may be placed on nonaccrual status prior to the policies described below when collection of principal or interest is in doubt. When a borrower with debt is discharged in a Chapter 7 bankruptcy and not reaffirmed by the borrower, the loan is determined to be collateral dependent and placed on nonaccrual status, unless there is a co-borrower.

All classes within the C&I and CRE portfolios (except for purchased credit-impaired loans) are placed on nonaccrual status at 90-days past due. First-lien home equity loans 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 generally charged-off when the loan is 120-days past due. Residential mortgage loans are placed on nonaccrual status at 150-days past due, with the exception of residential mortgages guaranteed by government agencies which continue to accrue interest at the rate guaranteed by the government agency. We are reimbursed from the government agency for reasonable expenses incurred in servicing loans.

For all classes within all loan portfolios, when a loan is placed on nonaccrual status, any accrued interest income is reversed with current year accruals charged to interest income, and prior year amounts charged-off as a credit loss.

For all classes within all loan portfolios, cash receipts on NALs are applied against principal until the loan or lease has been collected in full, including charged-off portion, after which time any additional cash receipts are recognized as interest income. However, for secured non-reaffirmed debt in a Chapter 7 bankruptcy, payments are applied to principal and interest when the borrower has demonstrated a capacity to continue payment of the debt and collection of the debt is reasonably assured. For unsecured non-reaffirmed debt in a Chapter 7 bankruptcy where the carrying value has been fully charged-off, payments are recorded as loan recoveries.

Regarding all classes within the C&I and CRE portfolios, the determination of a borrower’s ability to make the required principal and interest payments is based on an examination of the borrower’s current financial statements, industry, management capabilities, and other qualitative measures. For all classes within the consumer loan portfolio, the determination of a borrower’s ability to make the required principal and interest payments is based on multiple factors, including number of days past due and, in some instances, an evaluation of the borrower’s financial condition. When, in management’s judgment, the borrower’s ability to make required principal and interest payments resumes and collectability is no longer in doubt, supported by sustained repayment history, the loan is returned to accrual status. For these loans that have been returned to accrual status, cash receipts are applied according to the contractual terms of the loan.

Charge-off of Uncollectible Loans — 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 charged-off or written down to net realizable value at 90-days past due. Automobile 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.

Impaired Loans — For all classes within the C&I and CRE portfolios, all loans with an obligor balance of $1.0 million or greater are evaluated on a quarterly basis for impairment. Except for TDRs, consumer loans within any class are generally not individually evaluated on a regular basis for impairment. All TDRs, regardless of the outstanding balance amount, are also considered to be impaired. Loans acquired with evidence of deterioration in 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.

Purchased Credit-Impaired Loans — Purchased loans with evidence of deterioration in credit quality since origination for which it is probable at acquisition that we will be unable to collect all contractually required payments are considered to be credit impaired. Purchased credit-impaired loans are initially recorded at fair value, which is estimated by discounting the cash flows expected to be collected at the acquisition date. Because the estimate of expected cash flows reflects an estimate of future credit losses expected to be incurred over the life of the loans, an allowance for credit losses is not recorded at the acquisition date. The excess of cash flows expected at acquisition over the estimated fair value, referred to as the accretable yield, is recognized in interest income over the remaining life of the loan, or pool of loans, on a level-yield basis. The difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable difference. A subsequent decrease in the estimate of cash flows expected to be received on purchased credit-impaired loans generally results in the recognition of an allowance for credit losses. Subsequent increases in cash flows result in reversal of any nonaccretable difference (or allowance for loan and lease losses to the extent any has been recorded) with a positive impact on interest income subsequently recognized. The measurement of cash flows involves assumptions and judgments for interest rates, prepayments, default rates, loss severity, and collateral values. All of these factors are inherently subjective and significant changes in the cash flow estimates over the life of the loan can result.

Transfers of Financial Assets and Securitizations — Transfers of financial assets in which we have surrendered control over the transferred assets are accounted for as sales. In assessing whether control has been surrendered, we consider whether the transferee would be a consolidated affiliate, the existence and extent of any continuing involvement in the transferred financial assets, and the impact of all arrangements or agreements made contemporaneously with, or in contemplation of, the transfer, even if they were not entered into at the time of transfer. Control is generally considered to have been surrendered when (i) the transferred assets have been legally isolated from us or any of our consolidated affiliates, even in bankruptcy or other receivership, (ii) the transferee (or, if the transferee is an entity whose sole purpose is to engage in securitization or asset-backed financing that is constrained from pledging or exchanging the assets it receives, each third-party holder of its beneficial interests) has the right to pledge or exchange the assets (or beneficial interests) it received without any constraints that provide more than a trivial benefit to us, and (iii) neither we nor our consolidated affiliates and agents have (a) both the right and obligation under any agreement to repurchase or redeem the transferred assets before their maturity, (b) the unilateral ability to cause the holder to return specific financial assets that also provides us with a more-than-trivial benefit (other than through a cleanup call) or (c) an agreement that permits the transferee to require us to repurchase the transferred assets at a price so favorable that it is probable that it will require us to repurchase them.

If the sale criteria are met, the transferred financial assets are removed from our balance sheet and a gain or loss on sale is recognized. If the sale criteria are not met, the transfer is recorded as a secured borrowing in which the assets remain on our balance sheet and the proceeds from the transaction are recognized as a liability. For the majority of financial asset transfers, it is clear whether or not we have surrendered control. For other transfers, such as in connection with complex transactions or where we have continuing involvement, we generally obtain a legal opinion as to whether the transfer results in a true sale by law.

From time to time we securitize certain automobile receivables. Gains and losses on the loans and leases sold and servicing rights associated with loan and lease sales are determined when the related loans or leases are sold to either a securitization trust or third-party. For loan or lease sales with servicing retained, a servicing asset is recorded at fair value for the right to service the loans sold.

Derivative Financial Instruments — A variety of derivative financial instruments, principally interest rate swaps, caps, floors, and collars, are used in asset and liability management activities to protect against the risk of adverse price or interest rate movements. These instruments provide flexibility in adjusting Huntington’s sensitivity to changes in interest rates without exposure to loss of principal and higher funding requirements.

Huntington also uses derivatives, principally loan sale commitments, in hedging its mortgage loan interest rate lock commitments and its mortgage loans held for sale. Mortgage loan sale commitments and the related interest rate lock commitments are carried at fair value on the Consolidated Balance Sheets with changes in fair value reflected in mortgage banking income. Huntington also uses certain derivative financial instruments to offset changes in value of its MSRs. These derivatives consist primarily of forward interest rate agreements and forward mortgage contracts. The derivative instruments used are not designated as qualifying hedges. Accordingly, such derivatives are recorded at fair value with changes in fair value reflected in mortgage banking income.

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. On the date a derivative contract is entered into, we designate it as either:

• a qualifying hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge);

• a qualifying hedge of the variability of cash flows to be received or paid related to a recognized asset liability or forecasted transaction (cash flow hedge); or

• a trading instrument or a non-qualifying (economic) hedge.

Changes in the fair value of a derivative that has been designated and qualifies as a fair value hedge, along with the changes in the fair value of the hedged asset or liability that is attributable to the hedged risk, are recorded in current period earnings. Changes in the fair value of a derivative that has been designated and qualifies as a cash flow hedge, to the extent effective as a hedge, are recorded in accumulated other comprehensive income, net of income taxes, and reclassified into earnings in the period during which the hedged item affects earnings. Ineffectiveness in the hedging relationship is reflected in current period earnings. Changes in the fair value of derivatives held for trading purposes or which do not qualify for hedge accounting are reported in current period earnings.

For those derivatives to which hedge accounting is applied, Huntington formally documents the hedging relationship and the risk management objective and strategy for undertaking the hedge. This documentation identifies the hedging instrument, the hedged item or transaction, the nature of the risk being hedged, and, unless the hedge meets all of the criteria to assume there is no ineffectiveness, the method that will be used to assess the effectiveness of the hedging instrument and how ineffectiveness will be measured. The methods utilized to assess retrospective hedge effectiveness, as well as the frequency of testing, vary based on the type of item being hedged and the designated hedge period. For specifically designated fair value hedges of certain fixed-rate debt, Huntington utilizes the short-cut method when certain criteria are met. For other fair value hedges of fixed-rate debt, including certificates of deposit, Huntington utilizes the regression method to evaluate hedge effectiveness on a quarterly basis. For fair value hedges of portfolio loans, the regression method is used to evaluate effectiveness on a daily basis. For cash flow hedges, the regression method is applied on a quarterly basis.

Hedge accounting is discontinued prospectively when:

• the derivative is no longer effective or expected to be effective in offsetting changes in the fair value or cash flows of a hedged item (including firm commitments or forecasted transactions);

• the derivative expires or is sold, terminated, or exercised;

• it is unlikely that a forecasted transaction will occur;

• the hedged firm commitment no longer meets the definition of a firm commitment; or

• the designation of the derivative as a hedging instrument is removed.

When hedge accounting is discontinued because it is determined that the derivative no longer qualifies as an effective fair value or cash flow hedge, the derivative will continue to be carried on the balance sheet at fair value.

In the case of a discontinued fair value hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the hedged item will no longer be adjusted for changes in fair value. The basis adjustment that had previously been recorded to the hedged item during the period from the hedge designation date to the hedge discontinuation date is recognized as an adjustment to the yield of the hedged item over the remaining life of the hedged item.

In the case of a discontinued cash flow hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the effective portion of the changes in fair value of the hedging derivative will no longer be recorded to other comprehensive income. The balance applicable to the discontinued hedging relationship will be recognized in earnings over the remaining life of the hedged item as an adjustment to yield. If the discontinued hedged item was a forecasted transaction that is not expected to occur, any amounts recorded on the balance sheet related to the hedged item, including any amounts recorded in accumulated other comprehensive income, are immediately reclassified to current period earnings.

In the case of either a fair value hedge or a cash flow hedge, if the previously hedged item is sold or extinguished, the basis adjustment to the underlying asset or liability or any remaining unamortized other comprehensive income balance will be reclassified to current period earnings.

In all other situations in which hedge accounting is discontinued, the derivative will be carried at fair value on the consolidated balance sheets, with changes in its fair value recognized in current period earnings unless re-designated as a qualifying hedge.

Like other financial instruments, derivatives contain an element of credit risk, which is the possibility that Huntington will incur a loss because the counterparty fails to meet its contractual obligations. Notional values of interest rate swaps and other off-balance sheet financial instruments significantly exceed the credit risk associated with these instruments and represent contractual balances on which calculations of amounts to be exchanged are based. Credit exposure is limited to the sum of the aggregate fair value of positions that have become favorable to Huntington, including any accrued interest receivable due from counterparties. Potential credit losses are mitigated through careful evaluation of counterparty credit standing, selection of counterparties from a limited group of high quality institutions, collateral agreements, and other contract provisions. Huntington considers the value of collateral held and collateral provided in determining the net carrying value of derivatives.

Huntington offsets the fair value amounts recognized for derivative instruments and the fair value for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instrument(s) recognized at fair value executed with the same counterparty under a master netting arrangement.

Repossessed Collateral — Repossessed collateral, also referred to as OREO, is comprised principally of commercial and residential real estate properties obtained in partial or total satisfaction of loan obligations, and is carried at fair value. Collateral obtained in satisfaction of a loan is recorded at the estimated fair value less anticipated selling costs based upon the property’s appraised value at the date of foreclosure, with any difference between the fair value of the property and the carrying value of the loan recorded as a charge-off. If the fair value is higher than the carrying amount of the loan the excess is recognized first as a recovery and then as noninterest income. Subsequent declines in value are reported as adjustments to the carrying amount and are recorded in noninterest expense. Gains or losses resulting from the sale of collateral are recognized in noninterest expense at the date of sale.

Collateral — We pledge assets as collateral as required for various transactions including security repurchase agreements, public deposits, loan notes, derivative financial instruments, short-term borrowings and long-term borrowings. Assets that have been pledged as collateral, including those that can be sold or repledged by the secured party, continue to be reported on our Consolidated Balance Sheets.

We also accept collateral, primarily as part of various transactions including derivative and security resale agreements. Collateral accepted by us, including collateral that we can sell or repledge, is excluded from our Consolidated Balance Sheets.

The market value of collateral we have accepted or pledged is regularly monitored and additional collateral is obtained or provided as necessary to ensure appropriate collateral coverage in these transactions.

Premises and Equipment — Premises and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed principally by the straight-line method over the estimated useful lives of the related assets. Buildings and building improvements are depreciated over an average of 30 to 40 years and 10 to 30 years, respectively. Land improvements and furniture and fixtures are depreciated over an average of 5 to 20 years, while equipment is depreciated over a range of 3 to 10 years. Leasehold improvements are amortized over the lesser of the asset’s useful life or the lease term, including any renewal periods for which renewal is reasonably assured. Maintenance and repairs are charged to expense as incurred, while improvements that extend the useful life of an asset are capitalized and depreciated over the remaining useful life. Premises and equipment is evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Mortgage Servicing Rights — Huntington recognizes the rights to service mortgage loans as separate assets, which are included in Servicing Rights in the Consolidated Balance Sheets when purchased, or when servicing is contractually separated from the underlying mortgage loans by sale or securitization of the loans with servicing rights retained.

For loan sales with servicing retained, a servicing asset is recorded on the day of the sale at fair value for the right to service the loans sold. To determine the fair value of a MSR, Huntington uses an option adjusted spread cash flow analysis incorporating market implied forward interest rates to estimate the future direction of mortgage and market interest rates. The forward rates utilized are derived from the current yield curve for U.S. dollar interest rate swaps and are consistent with pricing of capital markets instruments. The current and projected mortgage interest rate influences the prepayment rate and, therefore, the timing and magnitude of the cash flows associated with the MSR. Servicing revenues on mortgage loans are included in mortgage banking income.

At the time of initial capitalization, MSRs may be grouped into servicing classes based on the availability of market inputs used in determining fair value and the method used for managing the risks of the servicing assets. MSR assets are recorded using the fair value method or the amortization method. The election of the fair value or amortization method is made at the time each servicing class is established. All newly created MSRs since 2009 were recorded using the amortization method. Any change in the fair value of MSRs carried under the fair value method, as well as amortization and impairment of MSRs under the amortization method, during the period is recorded in mortgage banking income, which is reflected in the Consolidated Statements of Income. Huntington economically hedges the value of certain MSRs using derivative instruments and trading securities. Changes in fair value of these derivatives and trading securities are reported as a component of mortgage banking income.

Goodwill and Other Intangible Assets — Under the acquisition method of accounting, the net assets of entities acquired by

Huntington are recorded at their estimated fair value at the date of acquisition. The excess cost of the acquisition over the fair value of net assets acquired is recorded as goodwill. Other intangible assets with finite useful lives are amortized either on an accelerated or straight-line basis over their estimated useful lives. Goodwill is evaluated for impairment on an annual basis at October 1^st of each year or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Indefinite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Pension and Other Postretirement Benefits — We recognize the funded status of the postretirement benefit plans on the Consolidated Balance Sheets. Net postretirement benefit cost charged to current earnings related to these plans is based on various actuarial assumptions regarding expected future experience.

Certain employees are participants in various defined contribution and other non-qualified supplemental retirement plans. Our contributions to defined contribution plans are charged to current earnings.

In addition, we maintain a 401(k) plan covering substantially all employees. Employer contributions to the plan, which are charged to current earnings, are based on employee contributions.

Share-Based Compensation — We use the fair value based method of accounting for awards of HBAN stock granted to employees under various stock option and restricted share plans. Stock compensation costs are recognized prospectively for all new awards granted under these plans. Compensation expense relating to share options is calculated using a methodology that is based on the underlying assumptions of the Black-Scholes option pricing model and is charged to expense over the requisite service period (e.g. vesting period). Compensation expense relating to restricted stock awards is based upon the fair value of the awards on the date of grant and is charged to earnings over the requisite service period (e.g., vesting period) of the award.

Stock Repurchases — Acquisitions of Huntington stock are recorded at cost. The re-issuance of shares is recorded at weighted-average cost.

Income Taxes — Income taxes are accounted for under the asset and liability method. Accordingly, deferred tax assets and liabilities are recognized for the future book and tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are determined using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income at the time of enactment of such change in tax rates. Any interest or penalties due for payment of income taxes are included in the provision for income taxes. To the extent that we do not consider it more likely than not that a deferred tax asset will be recovered, a valuation allowance is recorded. All positive and negative evidence is reviewed when determining how much of a valuation allowance is recognized on a quarterly basis. In determining the requirements for a valuation allowance, sources of possible taxable income are evaluated including future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences and carryforwards, taxable income in appropriate carryback years, and tax-planning strategies. Huntington applies a more likely than not recognition threshold for all tax uncertainties.

Bank Owned Life Insurance — Huntington’s bank owned life insurance policies are recorded at their cash surrender value. Huntington recognizes tax-exempt income from the periodic increases in the cash surrender value of these policies and from death benefits. A portion of the cash surrender value is supported by holdings in separate accounts. Book value protection for the separate accounts is provided by the insurance carriers and a highly rated major bank.

Fair Value Measurements — The Company records or discloses certain of its assets and liabilities at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Fair value measurements are classified within one of three levels in a valuation hierarchy based upon the observability of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows:

Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Segment Results — Accounting policies for the business segments are the same as those used in the preparation of the Consolidated Financial Statements with respect to activities specifically attributable to each business segment. However, the preparation of business segment results requires management to establish methodologies to allocate funding costs and benefits, expenses, and other financial elements to each business segment, which is described in Note 24.

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ACCOUNTING STANDARDS UPDATE

12 Months Ended

Dec. 31, 2016

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 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 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 Consolidated Financial Statements. Huntington expects to recognize a right-of-use asset and a lease liability for its operating lease commitments. Please refer to Note 21 for Huntington's commitments under operating lease obligations.

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, changes in the derivative counterparty should not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This Update is effective for financial statements issued for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. Early application is permitted. An entity has an option to apply the amendments in this Update on either a prospective basis or a modified retrospective basis. Management does not believe the new guidance will have a significant impact on Huntington's 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. This Update is effective for financial statements issued for fiscal years beginning after December 15, 2016 and interim periods within those fiscal years. Early adoption is permitted. An entity should apply this Update on a modified retrospective basis to existing debt instruments as of the beginning of the fiscal year for which the amendments are effective. This Update is not expected to have a significant impact on Huntington's 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. This Update is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The amendments are not expected to have a significant impact on Huntington's Consolidated Financial Statements.

ASU 2016-09 - Improvements to Employee Share-Based Payment Accounting. This Update simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification in the statement of cash flows. The amendments, among other things, require all tax benefits and tax deficiencies related to share-based awards to be recognized in the income statement. Other changes include an election related to the accounting for forfeitures, changes to the cash flow statement presentation for excess tax benefits, as well as for cash paid by an employer when directly withholding shares for tax withholding purposes. The amendments are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any entity in any interim or annual period. This Update was adopted in the current reporting period with no significant impact recognized on Huntington’s 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 Consolidated Financial Statements. Management has formed a working group comprising 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 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 earlier this year. 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 amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The adoption of the Update is not expected to have a significant impact on Huntington’s Consolidated Financial Statements.

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ACQUISITION OF FIRSTMERIT CORPORATION

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

ACQUISITION OF FIRSTMERIT CORPORATION

ACQUISITION OF FIRSTMERIT CORPORATION

On August 16, 2016, Huntington completed its acquisition of FirstMerit Corporation in a stock and cash transaction valued at approximately $3.7 billion. FirstMerit Corporation was a diversified financial services company headquartered in Akron, Ohio, with operations in Ohio, Michigan, Wisconsin, Illinois and Pennsylvania. Post merger, Huntington now operates across an eight-state Midwestern footprint. The merger resulted in a combined company with a larger market presence and more diversified loan portfolio, as well as a larger core deposit funding base and economies of scale associated with a larger financial institution.

Under the terms of the agreement, shareholders of FirstMerit Corporation received 1.72 shares of Huntington common stock, and $5.00 in cash, for each share of FirstMerit Corporation common stock. The aggregate purchase price was $3.7 billion, including $0.8 billion of cash, $2.8 billion of common stock, and $0.1 billion of preferred stock. Huntington issued 285 million shares of common stock that had a total fair value of $2.8 billion based on the closing market price of $9.68 per share on August 15, 2016.

The acquisition of FirstMerit constituted a business combination. The FirstMerit merger has been accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration exchanged were recorded at estimated fair value on the acquisition date. The determination of estimated fair values required management to make certain estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and may require adjustments, which can be updated for up to a year following the acquisition. As of December 31, 2016, Management completed its review of information relating to events or circumstances existing at the acquisition date.

The following table reflects consideration paid for FirstMerit's net assets and the amounts of acquired identifiable assets and liabilities assumed as of the acquisition date:

	FirstMerit
(dollar amounts in thousands)	UPB		Fair Value
Assets acquired:
Cash and due from banks			$	703,661
Interest-bearing deposits in banks			32,496
Loans held for sale			150,576
Available for sale and other securities			7,369,967
Loans and leases:
Commercial:
Commercial and industrial	$	7,410,503	7,252,692
Commercial real estate	1,898,875		1,844,150
Total commercial	9,309,378		9,096,842
Consumer:
Automobile	1,610,007		1,609,145
Home equity	1,579,832		1,537,791
Residential mortgage	1,098,588		1,092,050
RV and marine finance	1,823,312		1,816,575
Other consumer	324,350		323,512
Total consumer	6,436,089		6,379,073
Total loans and leases	$	15,745,467	15,475,915
Bank owned life insurance			633,612
Premises and equipment			228,635
Goodwill			1,320,818
Core deposit intangible			309,750
Other intangible assets			94,571
Servicing rights			15,317
Accrued income and other assets			506,578
Total assets acquired			26,841,896
Liabilities assumed:
Deposits			21,157,172
Short-term borrowings			1,163,851
Long-term debt			519,971
Accrued expenses and other liabilities			292,930
Total liabilities assumed			23,133,924
Total consideration paid			$	3,707,972
Consideration:
Cash paid			$	836,879
Fair value of common stock issued			2,766,773
Fair value of preferred stock exchange			104,320

Information regarding the allocation of goodwill recorded as a result of the acquisition to the Company’s reportable segments, as well as the carrying amounts and amortization of core deposit and other intangible assets, is provided in Note 8 of the Notes to Consolidated Financial Statements. The total amount of goodwill that is expected to be deductible for tax purposes is $339 million.

The following is a description of the methods used to determine the fair values of significant assets and liabilities presented above.

Cash and due from banks, interest-bearing deposits in banks, and loans held for sale: The carrying amount of these assets is a reasonable estimate of fair value based on the short-term nature of these assets.

Securities: Fair values for securities were based on quoted market prices, where available. If quoted market prices were not available, fair value estimates were based on observable inputs including quoted market prices for similar instruments, quoted market prices that were not in an active market or other inputs that were observable in the market. In the absence of observable inputs, fair value is estimated based on pricing models and/or discounted cash flow methodologies.

Loans and leases: Fair values for loans were based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan, amortization status and current discount rates. Loans were grouped together according to similar characteristics when applying various valuation techniques. The discount rates used for loans were based on current market rates for new originations of comparable loans and include adjustments for any liquidity concerns. The discount rate does not include a factor for credit losses as that has been included as a reduction to the estimated cash flows.

CDI: This intangible asset represents the value of the relationships with deposit customers. The fair value was estimated based on a discounted cash flow methodology that gave appropriate consideration to expected customer attrition rates, net maintenance cost of the deposit base, alternative cost of funds, and the interest costs associated with customer deposits. The CDI is being amortized over 10 years based upon the period over which estimated economic benefits were estimated to be received.

Deposits: The fair values used for the demand and savings deposits by definition equal the amount payable on demand at the acquisition date. The fair values for time deposits were estimated using a discounted cash flow calculation that applies interest rates currently being offered to the contractual interest rates on such time deposits.

Debt: The fair values of long-term debt instruments were estimated based on quoted market prices for the instrument if available, or for similar instruments if not available, or by using discounted cash flow analyses, based on current incremental borrowing rates for similar types of instruments.

The following table presents financial information regarding the former FirstMerit operations included in our Consolidated Statements of Income from the date of acquisition (August 16, 2016) through December 31, 2016 under the column “Actual from acquisition date”. The following table also presents unaudited pro forma information as if the entities were combined for the full years ended December 31, 2016 and 2015, respectively under the “Unaudited Pro Forma” columns. The pro forma information does not necessarily reflect the results of operations that would have occurred had Huntington acquired FirstMerit on January 1, 2015. Furthermore, cost savings and other business synergies related to the acquisition are not reflected in the pro forma amounts.

	Actual from		Unaudited Pro Forma for
	acquisition date through		Year Ended December 31,
(dollar amounts in thousands)	December 31, 2016		2016		2015
Net interest income	$	277,143	$	2,788,074	$	2,599,840
Noninterest income	96,217		1,311,490		1,301,798
Net income	82,083		809,142		842,069

This unaudited pro forma information combines the historical consolidated results of operations of Huntington and FirstMerit for the periods presented and gives effect to the following nonrecurring adjustments:

Fair value adjustments: Pro forma adjustment to decrease net interest income by $12 million and $18 million for the years ended December 31, 2016 and 2015, to record estimated amortization of premiums and accretion of discounts on acquired loans, securities, deposits, and long-term debt.  

FirstMerit accretion /amortization: Pro forma adjustment to decrease net interest income by $34 million and $79 million for the years ended December 31, 2016 and 2015, to eliminate FirstMerit amortization of premiums and accretion of discounts on previously acquired loans, securities, and deposits.

Amortization of acquired intangibles: Pro forma adjustment to increase noninterest expense by $28 million and $44 million for the years ended December 31, 2016 and 2015, to record estimated amortization of acquired intangible assets.

Huntington merger-related costs: Pro forma results include Huntington merger-related costs which primarily included, but were not limited to, severance costs, professional services, data processing fees, marketing and advertising expenses totaling $281 million for the year ended December 31, 2016.

Other adjustments: Pro forma results also include adjustments related to branch divestitures, incremental interest expense on the issuance on acquisition debt, elimination of FirstMerit's intangible amortization expense, FirstMerit merger-related costs, and related income-tax effects.

Branch divestiture: On December 5, 2016, Huntington completed the previously announced sale of 13 acquired branches and certain related assets and deposit liabilities to First Commonwealth Bank, the banking subsidiary of First Commonwealth Financial Corporation. The sale was in connection with an agreement reached with the U.S. Department of Justice in order to resolve its competitive concerns about Huntington’s acquisition of FirstMerit. Total deposits and loans transferred to First Commonwealth Bank in the transaction totaled $620 million and $106 million, respectively

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LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES

Except for loans which are accounted for at fair value, loans are carried at the principal amount outstanding, net of unamortized premiums and discounts, deferred loan fees and costs and purchase accounting adjustments, which resulted in a net premium of $120 million and $262 million, at December 31, 2016 and 2015, respectively.

Loans and leases with a fair value of $15 billion were acquired by Huntington as part of the FirstMerit acquisition. The fair values of the loans were estimated using discounted cash flow analyses using interest rates currently being offered for loans with similar terms (Level 3). Of the total acquired loans and leases, Huntington has elected the fair value option for $56 million of consumer loans. These loans will subsequently be measured at fair value with any changes in fair value recognized in noninterest income in the Consolidated Statements of Income.

Direct Financing Leases

Huntington’s loan and lease portfolio includes lease financing receivables consisting of direct financing leases on equipment, which are included in C&I loans. Net investments in lease financing receivables by category at December 31, 2016 and 2015 were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Commercial and industrial:
Lease payments receivable	$	1,881,596		$	1,551,885
Estimated residual value of leased assets	797,611			711,181
Gross investment in commercial lease financing receivables	2,679,207			2,263,066
Net deferred origination costs	12,683			7,068
Deferred fees	(253,423		)	(208,669		)
Total net investment in commercial lease financing receivables	$	2,438,467		$	2,061,465

The future lease rental payments due from customers on direct financing leases at December 31, 2016, totaled $1.9 billion and therefore were as follows: $0.6 billion in 2017, $0.5 billion in 2018, $0.3 billion in 2019, $0.2 billion in 2020, $0.1 billion in 2021, and $0.2 billion thereafter.

Purchased Credit-Impaired Loans

The following table reflects the contractually required payments receivable, cash flows expected to be collected, and fair value of the credit impaired FirstMerit loans at acquisition date:

(dollar amounts in thousands)	August 16, 2016
Contractually required payments including interest	$	283,947
Less: nonaccretable difference	(84,315		)
Cash flows expected to be collected	199,632
Less: accretable yield	(17,717		)
Fair value of loans acquired	$	181,915

The following table presents a rollforward of the accretable yield for purchased credit impaired FirstMerit loans for the year ended December 31, 2016: and 2015:

(dollar amounts in thousands)	2016
Balance, beginning of period	$	—
Impact of acquisition/purchase on August 16, 2016	17,717
Accretion	(5,401		)
Reclassification (to) from nonaccretable difference	24,353
Balance at December 31,	$	36,669

The following table reflects the ending and unpaid balances of the FirstMerit purchased credit-impaired loans at December 31, 2016: 2015

	December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance
Commercial and industrial	$	68,338	$	100,031
Commercial real estate	34,042		56,320
Total	$	102,380	$	156,351

Loan Purchases and Sales

The following table summarizes significant portfolio loan purchase and sale activity for the years ended December 31, 2016 and 2015. The table below excludes mortgage loans originated for sale.

(dollar amounts in thousands)	2016				2015
Portfolio loans and leases purchased or transferred from held for sale:
Commercial and industrial	$	394,579			$	316,252
Commercial real estate	—				—
Automobile	—				—
Home equity	—				—
Residential mortgage	16,045				20,463
RV and marine finance	—				—
Other consumer	—				—
Total	$	410,624			$	336,715
Portfolio loans and leases sold or transferred to loans held for sale:
Commercial and industrial	$	1,293,711	(1	)	$	380,713
Commercial real estate	76,965		(2	)	—
Automobile	1,544,642				764,540		(3)
Home equity	—				96,786
Residential mortgage	—				—
RV and marine finance	—				—
Other consumer	—				—
Total	$	2,915,318			$	1,242,039

(1) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale in the 2016 third quarter, net of approximately $341 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(2) Reflects the transfer of approximately $124 million of loans to loans held-for-sale in the 2016 third quarter, net of approximately $47 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(3) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale during the 2015 first quarter, net of approximately $262 million of loans transferred to loans and leases in the 2015 second quarter.

NALs and Past Due Loans

The following table presents NALs by loan class at December 31, 2016 and 2015:

	December 31,
(dollar amounts in thousands)	2016		2015
Commercial and industrial	$	234,184	$	175,195
Commercial real estate	20,508		28,984
Automobile	5,766		6,564
Home equity	71,798		66,278
Residential mortgage	90,502		94,560
RV and marine finance	245		—
Other consumer	—		—
Total nonaccrual loans	$	423,003	$	371,581

The amount of interest that would have been recorded under the original terms for total NAL loans was $24 million, $20 million, and $21 million for 2016, 2015, and 2014, respectively. The total amount of interest recorded to interest income for these loans was $17 million, $10 million, and $8 million in 2016, 2015, and 2014, respectively.

The following table presents an aging analysis of loans and leases, including past due loans and leases, by loan class at December 31, 2016 and 2015 (1):

	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 and leases	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
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

	December 31, 2015
	Past Due										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
Commercial and industrial	$	44,715	$	13,580	$	46,978	$	105,273	$	20,454,561	$	20,559,834	$	8,724	(2)
Commercial real estate	9,232		5,721		21,666		36,619		5,232,032		5,268,651		9,549
Automobile loans and leases	69,553		14,965		7,346		91,864		9,388,814		9,480,678		7,162
Home equity	36,477		16,905		56,300		109,682		8,360,800		8,470,482		9,044
Residential mortgage	102,773		34,298		119,354		256,425		5,741,975		5,998,400		69,917
RV and marine finance	—		—		—		—		—		—		—
Other consumer	6,469		1,852		1,395		9,716		553,338		563,054		1,394
Total loans and leases	$	269,219	$	87,321	$	253,039	$	609,579	$	49,731,520	$	50,341,099	$	105,790

(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.

Allowance for Credit Losses

The ACL is increased through a provision for credit losses that is charged to earnings, based on the Company’s quarterly evaluation of the factors disclosed in Note 1. Significant Accounting Policies 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 years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	Commercial			Consumer			Total
Year ended December 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(91,914		)	(135,400		)	(227,314		)
Recoveries of loans previously charged-off	73,138			45,280			118,418
Provision (reduction in allowance) for loan and lease losses	84,381			85,026			169,407
Allowance for loans sold or transferred to loans held for sale	(13,267		)	(6,674		)	(19,941		)
ALLL balance, end of period	$	451,091		$	187,322		$	638,413
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	18,692			2,703			21,395
AULC recorded at acquisition	4,403			—			4,403
AULC balance, end of period	$	86,543		$	11,336		$	97,879
ACL balance, end of period	$	537,634		$	198,658		$	736,292
Year ended December 31, 2015:
ALLL balance, beginning of period	$	389,834		$	215,362		$	605,196
Loan charge-offs	(97,800		)	(120,081		)	(217,881		)
Recoveries of loans previously charged-off	86,419			43,669			130,088
Provision (reduction in allowance) for loan and lease losses	20,300			68,379			88,679
Allowance for loans sold or transferred to loans held for sale	—			(8,239		)	(8,239		)
ALLL balance, end of period	$	398,753		$	199,090		$	597,843
AULC balance, beginning of period	$	55,029		$	5,777		$	60,806
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	8,419			2,856			11,275
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	63,448		$	8,633		$	72,081
ACL balance, end of period	$	462,201		$	207,723		$	669,924
Year ended December 31, 2014:
ALLL balance, beginning of period	$	428,358		$	219,512		$	647,870
Loan charge-offs	(101,358		)	(145,243		)	(246,601		)
Recoveries of loans previously charged-off	78,602			43,372			121,974
Provision (reduction in allowance) for loan and lease losses	(15,768		)	98,850			83,082
Allowance for loans sold or transferred to loans held for sale	—			(1,129		)	(1,129		)
ALLL balance, end of period	$	389,834		$	215,362		$	605,196
AULC balance, beginning of period	$	59,487		$	3,412		$	62,899
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(4,458		)	2,365			(2,093		)
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	55,029		$	5,777		$	60,806
ACL balance, end of period	$	444,863		$	221,139		$	666,002

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. For these reasons, Huntington considers the loans to be potential problem loans.

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 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 December 31, 2016 and 2015:

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
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
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

	December 31, 2015
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial and industrial	$	19,257,789	$	399,339	$	895,577	$	7,129	$	20,559,834
Commercial real estate	5,066,054		79,787		121,167		1,643		5,268,651
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Automobile	4,680,684		3,454,585		1,086,914		258,495		9,480,678
Home equity	5,210,741		2,466,425		582,326		210,990		8,470,482
Residential mortgage	3,564,064		1,813,779		567,984		52,573		5,998,400
RV and marine finance	—		—		—		—		—
Other consumer	233,969		269,746		49,650		9,689		563,054

(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. 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.

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 for the years ended December 31, 2016 and 2015:

(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 balance:
Attributable to 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.

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2015:
Portion of ALLL balance:
Attributable to purchased credit-impaired loans	$	2,602	$	127	$	2,729
Attributable to loans individually evaluated for impairment	27,428		35,008		62,436
Attributable to loans collectively evaluated for impairment	368,723		163,955		532,678
Total ALLL balance:	$	398,753	$	199,090	$	597,843
Loan and Lease Ending Balances at December 31, 2015: (1)
Portion of loan and lease ending balances:
Attributable to purchased credit-impaired loans	$	34,775	$	1,506	$	36,281
Individually evaluated for impairment	626,010		651,778		1,277,788
Collectively evaluated for impairment	25,167,700		23,859,330		49,027,030
Total loans and leases evaluated for impairment	$	25,828,485	$	24,512,614	$	50,341,099

(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 for the years ended December 31, 2016 and 2015 (1):

							Year Ended
	December 31, 2016						December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	292,567	$	9,401
Commercial real estate	88,817		126,152		—		73,040		4,191
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (2)	406,243		448,121		22,259		301,598		8,124
Commercial real estate (3)	97,238		107,512		3,434		68,865		2,978
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage (5)	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233
Total
Commercial and industrial	705,849		806,833		22,259		594,165		17,525
Commercial real estate	186,055		233,664		3,434		141,905		7,169
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233

							Year Ended
	December 31, 2015						December 31, 2015
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	255,801	$	279,551	$	—	$	114,389	$	2,584
Commercial real estate	68,260		125,814		—		88,173		7,199
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	52		101		—		51		17
With an allowance recorded:
Commercial and industrial (2)	246,249		274,203		21,916		267,662		15,110
Commercial real estate (3)	90,475		104,930		8,114		114,019		4,833
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage (5)	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,640		4,649		176		4,675		254
Total
Commercial and industrial	502,050		553,754		21,916		382,051		17,694
Commercial real estate	158,735		230,744		8,114		202,192		12,032
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,692		4,750		176		4,726		271

(1) All automobile, home equity, residential mortgage, and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(2) At December 31, 2016, $293 million of the $406 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $91 million of the $246 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR.

(3) At December 31, 2016, $81 million of the $97 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $35 million of the $90 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR.

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

(5) At December 31, 2016, $29 million of the $328 million residential mortgage loans with an allowance recorded were guaranteed by the U.S. government. At December 31, 2015, $29 million of the $368 million residential mortgage loans with an allowance recorded were guaranteed by the U.S. government.

TDR Loans

The amount of interest that would have been recorded under the original terms for total accruing TDR loans was $49 million, $46 million, and $45 million for 2016, 2015, and 2014, respectively. The total amount of actual interest recorded to interest income for these loans was $40 million, $41 million, and $39 million for 2016, 2015, and 2014, respectively.

TDR Concession Types

The Company’s standards relating to loan modifications consider, among other factors, minimum verified income requirements, cash flow analyses, and collateral valuations. Each potential loan modification is reviewed individually and the terms of the loan are modified to meet a borrower’s specific circumstances at a point in time. All commercial TDRs are reviewed and approved by our SAD. The types of concessions provided to borrowers include:

• Interest rate reduction: A reduction of the stated interest rate to a nonmarket rate for the remaining original life of the debt.

• Amortization or maturity date change beyond what the collateral supports, including any of the following:

• Lengthens the amortization period of the amortized principal beyond market terms. This concession reduces the minimum monthly payment and could increase the amount of the balloon payment at the end of the term of the loan. Principal is generally not forgiven.

• Reduces the amount of loan principal to be amortized and increases the amount of the balloon payment at the end of the term of the loan. This concession also reduces the minimum monthly payment. Principal is generally not forgiven.

• Extends the maturity date or dates of the debt beyond what the collateral supports. This concession generally applies to loans without a balloon payment at the end of the term of the loan.

• Chapter 7 bankruptcy: A bankruptcy court’s discharge of a borrower’s debt is considered a concession when the borrower does not reaffirm the discharged debt.

• Other: A concession that is not categorized as one of the concessions described above. These concessions include, but are not limited to: principal forgiveness, collateral concessions, covenant concessions, and reduction of accrued interest. Principal forgiveness may result from any TDR modification of any concession type. However, the aggregate amount of principal forgiven as a result of loans modified as TDRs during the years ended December 31, 2016 and 2015, was not significant.

Following is a description of TDRs by the different loan types:

Commercial loan TDRs – Commercial accruing TDRs often result from loans receiving a concession with terms that are not considered a market transaction to Huntington. The TDR remains in accruing status as long as the customer is less than 90-days past due on payments per the restructured loan terms and no loss is expected.

Commercial nonaccrual TDRs result from either: (1) an accruing commercial TDR being placed on nonaccrual status, or (2) a workout where an existing commercial NAL is restructured and a concession is given. At times, these workouts restructure the NAL so that two or more new notes are created. The primary note is underwritten based upon our normal underwriting standards and is sized so projected cash flows are sufficient to repay contractual principal and interest. The terms on the secondary note(s) vary by situation, and may include notes that defer principal and interest payments until after the primary note is repaid. Creating two or more notes often allows the borrower to continue a project and allows Huntington to right-size a loan based upon the current expectations for a borrower’s or project’s performance.

Our strategy involving TDR borrowers includes working with these borrowers to allow them to refinance elsewhere, as well as allow them time to improve their financial position and remain a Huntington customer through refinancing their notes according to market terms and conditions in the future. A subsequent refinancing or modification of a loan may occur when either the loan matures according to the terms of the TDR-modified agreement or the borrower requests a change to the loan agreements. At that time, the loan is evaluated to determine if the borrower is creditworthy. It is subjected to the normal underwriting standards and processes for other similar credit extensions, both new and existing. The refinanced note is evaluated to determine if it is considered a new loan or a continuation of the prior loan. A new loan is considered for removal of the TDR designation, whereas a continuation of the prior note requires a continuation of the TDR designation. In order for a TDR designation to be removed, the borrower must no longer be experiencing financial difficulties and the terms of the refinanced loan must not represent a concession.

Consumer loan TDRs – Residential mortgage TDRs represent loan modifications associated with traditional first-lien mortgage loans in which a concession has been provided to the borrower. The primary concessions given to residential mortgage borrowers are amortization or maturity date changes and interest rate reductions. Residential mortgages identified as TDRs involve borrowers unable to refinance their mortgages through the Company’s normal mortgage origination channels or through other independent sources. Some, but not all, of the loans may be delinquent. The Company may make similar interest rate, term, and principal concessions for Automobile, Home Equity, RV and Marine Finance and Other Consumer loan TDRs.

TDR Impact on Credit Quality

Huntington’s ALLL is largely determined by updated risk ratings assigned to commercial loans, updated borrower credit scores on consumer loans, and borrower delinquency history in both the commercial and consumer portfolios. These updated risk ratings and credit scores consider the default history of the borrower, including payment redefaults. As such, the provision for credit losses is impacted primarily by changes in borrower payment performance rather than the TDR classification. TDRs can be classified as either accrual or nonaccrual loans. Nonaccrual TDRs are included in NALs whereas accruing TDRs are excluded from NALs as it is probable that all contractual principal and interest due under the restructured terms will be collected.

The Company's TDRs may include multiple concessions and the disclosure classifications are presented based on the primary concession provided to the borrower. The majority of the concessions for the C&I and CRE portfolios are the extension of the maturity date, but could also include an increase in the interest rate. In these instances, the primary concession is the maturity date extension.

TDR concessions may also result in the reduction of the ALLL within the C&I and CRE portfolios. This reduction is derived from payments and the resulting application of the reserve calculation within the ALLL. The transaction reserve for non-TDR C&I and CRE loans is calculated based upon several estimated probability factors, such as PD and LGD. Upon the occurrence of a TDR in our C&I and CRE portfolios, the reserve is measured based on discounted expected cash flows or collateral value, less anticipated selling costs, of the modified loan in accordance with ASC 310-10. The resulting TDR ALLL calculation often results in a lower ALLL amount because (1) the discounted expected cash flows or collateral value, less anticipated selling costs, indicate a lower estimated loss, (2) if the modification includes a rate increase, the discounting of the cash flows on the modified loan, using the pre-modification interest rate, exceeds the carrying value of the loan, or (3) payments may occur as part of the modification. The ALLL for C&I and CRE loans may increase as a result of the modification, as the discounted cash flow analysis may indicate additional reserves are required.

TDR concessions on consumer loans may increase the ALLL. The concessions made to these borrowers often include interest rate reductions, and therefore, the TDR ALLL calculation results in a greater ALLL compared with the non-TDR calculation as the reserve is measured based on the estimation of the discounted expected cash flows or collateral value, less anticipated selling costs, on the modified loan in accordance with ASC 310-10. The resulting TDR ALLL calculation often results in a higher ALLL amount because (1) the discounted expected cash flows or collateral value, less anticipated selling costs, indicate a higher estimated loss or, (2) due to the rate decrease, the discounting of the cash flows on the modified loan, using the pre-modification interest rate, indicates a reduction in the present value of expected cash flows or collateral value, less anticipated selling costs. However, in certain instances, the ALLL may decrease as a result of payments made in connection with the modification.

Commercial loan TDRs – In instances where the bank substantiates that it will collect its outstanding balance in full, the note is considered for return to accrual status upon the borrower showing a sustained period of repayment performance for a six-month period of time. This six-month period could extend before or after the restructure date. If a charge-off was taken as part of the restructuring, any interest or principal payments received on that note are applied to first reduce the bank’s outstanding book balance and then to recoveries of charged-off principal, unpaid interest, and/or fee expenses while the TDR is in nonaccrual status.

Consumer loan TDRs – Modified consumer loans identified as TDRs are aggregated into pools for analysis. Cash flows and weighted average interest rates are used to calculate impairment at the pooled-loan level. Once the loans are aggregated into the pool, they continue to be classified as TDRs until contractually repaid or charged-off.

Residential mortgage loans not guaranteed by a U.S. government agency such as the FHA, VA, and the USDA, including TDR loans, are reported as accrual or nonaccrual based upon delinquency status. Nonaccrual TDRs are those that are greater than 150-days contractually past due. Loans guaranteed by U.S. government organizations continue to accrue interest on guaranteed rates upon delinquency.

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 years ended December 31, 2016 and 2015:

	New Troubled Debt Restructurings During The Year Ended (1)
	December 31, 2016						December 31, 2015
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)			Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)
Commercial and industrial:
Interest rate reduction	4	161		5			13	8,243		(1,042		)
Amortization or maturity date change	872	490,488		(8,751		)	765	524,356		(5,853		)
Other	20	1,951		(13.996		)	16	29,842		(449		)
Total Commercial and industrial	896	492,600		(8,760		)	794	562,441		(7,344		)
Commercial real estate:
Interest rate reduction	2	223		—			4	2,249		(4		)
Amortization or maturity date change	111	69,192		(1,868		)	143	141,238		(1,249		)
Other	4	315		16			11	480		(30		)
Total commercial real estate:	117	69,730		(1,852		)	158	143,967		(1,283		)
Automobile:
Interest rate reduction	17	212		12			41	121		5
Amortization or maturity date change	1,593	14,542		1,065			1,591	12,268		533
Chapter 7 bankruptcy	1,059	8,418		400			926	7,390		423
Other	—	—		—			—	—		—
Total Automobile	2,669	23,172		1,477			2,558	19,779		961
Home equity:
Interest rate reduction	55	2,928		110			55	4,399		161
Amortization or maturity date change	578	32,006		(3,709		)	1,591	79,023		(10,639		)
Chapter 7 bankruptcy	282	10,035		2,819			330	9,855		4,271
Other	—	—		—			—	—		—
Total Home equity	915	44,969		(780		)	1,976	93,277		(6,207		)
Residential mortgage:
Interest rate reduction	13	1,287		(18		)	15	1,565		(61		)
Amortization or maturity date change	363	39,170		(1,650		)	518	57,859		(455		)
Chapter 7 bankruptcy	62	5,715		(86		)	139	14,183		(164		)
Other	4	424		—			11	1,266		—
Total Residential mortgage	442	46,596		(1,754		)	683	74,873		(680		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	—	—		—			—	—		—
Chapter 7 bankruptcy	—	—		—			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	—	—		—			—	—		—
Other consumer:
Interest rate reduction	—	—		—			1	96		3
Amortization or maturity date change	6	575		24			10	198		8
Chapter 7 bankruptcy	8	72		7			11	69		9
Other	—	—		—			—	—		—
Total Other consumer	14	647		31			22	363		20
Total new troubled debt restructurings	5,053	$	677,714	$	(11,638	)	6,191	$	894,700	$	(14,533	)

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

(2) Post-modification balances approximate pre-modification balances. The aggregate amount of charge-offs as a result of a restructuring are not significant.

(3) Amounts represent the financial impact via provision (recovery) for loan and lease losses as a result of the modification.

Pledged Loans and Leases

The Bank has access to the Federal Reserve’s discount window and advances from the FHLB – Cincinnati. As of December 31, 2016 and 2015, these borrowings and advances are secured by $19.7 billion and $17.5 billion, respectively of loans and securities.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which was re-branded Huntington Technology Finance. Huntington assumed debt associated with two securitizations. As of December 31, 2016, the debt is secured by $70 million of on balance sheet leases held by the trusts.

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AVAILABLE-FOR-SALE AND OTHER SECURITIES

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

AVAILABLE-FOR-SALE AND OTHER SECURITIES

AVAILABLE-FOR-SALE AND OTHER SECURITIES

Contractual maturities of available-for-sale and other securities as of December 31, 2016 and 2015 were:

	2016				2015
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Under 1 year	$	223,789	$	221,495	$	333,891	$	332,980
After 1 year through 5 years	1,147,510		1,149,460		1,184,454		1,189,455
After 5 years through 10 years	1,956,893		1,962,345		1,648,808		1,645,759
After 10 years	11,884,812		11,665,245		5,259,855		5,263,063
Other securities:
Nonmarketable equity securities	547,704		547,704		332,786		332,786
Mutual funds	15,286		15,286		10,604		10,604
Marketable equity securities	861		1,302		525		794
Total available-for-sale and other securities	$	15,776,855	$	15,562,837	$	8,770,923	$	8,775,441

Other securities at December 31, 2016 and 2015 include nonmarketable equity securities of $249 million and $157 million of stock issued by the FHLB and $299 million and $176 million of Federal Reserve Bank stock, respectively. Nonmarketable 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 December 31, 2016 and 2015:

			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

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
U.S. Treasury	$	5,457	$	15	$	—		$	5,472
Federal agencies:
Mortgage-backed securities	4,505,318		30,078		(13,708		)	4,521,688
Other agencies	115,076		888		(51		)	115,913
Total U.S. Treasury, Federal agency securities	4,625,851		30,981		(13,759		)	4,643,073
Municipal securities	2,431,943		51,558		(27,105		)	2,456,396
Asset-backed securities	901,059		535		(40,181		)	861,413
Corporate debt	464,207		4,824		(2,554		)	466,477
Other securities	347,863		271		(52		)	348,082
Total available-for-sale and other securities	$	8,770,923	$	88,169	$	(83,651	)	$	8,775,441

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 December 31, 2016 and 2015:

	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	)

	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, 2015
Federal agencies:
Mortgage-backed securities	$	1,658,516	$	(11,341	)	$	84,147	$	(2,367	)	$	1,742,663	$	(13,708	)
Other agencies	37,982		(51		)	—		—			37,982		(51		)
Total Federal agency securities	1,696,498		(11,392		)	84,147		(2,367		)	1,780,645		(13,759		)
Municipal securities	570,916		(15,992		)	248,204		(11,113		)	819,120		(27,105		)
Asset-backed securities	552,275		(5,791		)	207,639		(34,390		)	759,914		(40,181		)
Corporate debt	167,144		(1,673		)	21,965		(881		)	189,109		(2,554		)
Other securities	772		(28		)	1,476		(24		)	2,248		(52		)
Total temporarily impaired securities	$	2,987,605	$	(34,876	)	$	563,431	$	(48,775	)	$	3,551,036	$	(83,651	)

At December 31, 2016, 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 $5.0 billion. There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10% of shareholders’ equity at December 31, 2016.

The following table is a summary of realized securities gains and losses for the years ended December 31, 2016, 2015, and 2014:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Gross gains on sales of securities	$	23,095		$	6,730		$	17,729
Gross (losses) on sales of securities	(21,060		)	(3,546		)	(175		)
Net gain (loss) on sales of securities	$	2,035		$	3,184		$	17,554

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.

OTTI totaling $2 million was recorded on two direct purchase municipal instruments during 2016. Direct purchase municipal instruments are underwritten and managed by Huntington. At December 31, 2016, $2.8 billion of direct purchase municipal instruments were managed by Huntington.

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 December 31, 2016 and 2015. 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		15,307		(3,287		)	BB	19/21	7	13	54
MM Comm III	4,573		4,369		3,618		(751		)	BB	5/8	5	6	38
Pre TSL IX (1)	5,000		3,955		3,253		(702		)	C	27/37	16	9	8
Pre TSL XI (1)	25,000		19,576		15,767		(3,809		)	C	43/53	14	8	14
Pre TSL XIII (1)	27,530		19,106		17,146		(1,960		)	C	45/54	9	11	29
Reg Diversified (1)	25,500		4,610		1,752		(2,858		)	D	20/37	35	8	—
Tropic III	31,000		31,000		19,160		(11,840		)	BB	28/37	16	7	42
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)
Total at December 31, 2015	$	179,574	$	131,991	$	100,338	$	(31,654	)

(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 periods ended December 31, 2016, 2015, and 2014, the following table summarizes by security type, the total OTTI losses recognized in the Consolidated Statements of Income for securities evaluated for impairment as described above:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—		$	(2,440	)	$	—
Municipal Securities	(2,119		)	—			—
Total available-for-sale and other securities	$	(2,119	)	$	(2,440	)	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the years ended December 31, 2016, and 2015 as follows:

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015
Balance, beginning of year	$	18,368		$	30,869
Reductions from sales	(8,690		)	(14,941		)
Credit losses not previously recognized	2,119			—
Additional credit losses	—			2,440
Balance, end of year	$	11,797		$	18,368

To reduce asset risk weighting and credit risk in the investment portfolio, the remainder of the private-label CMO portfolio was sold in the 2015 third quarter.  Huntington recognized OTTI on this portfolio in prior periods.

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HELD-TO-MATURITY SECURITIES

12 Months Ended

Dec. 31, 2016

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.

During 2016 and 2015, Huntington transferred federal agencies, mortgage-backed securities and other agency securities totaling $2.9 billion and $3.0 billion, respectively from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. At the time of the transfer, $58 million of unrealized net losses and $6 million of unrealized net gains were recognized in OCI, respectively. The amounts in OCI will be recognized in earnings over the remaining life of the securities as an offset to the adjustment of yield in a manner consistent with the amortization of the premium on the same transferred securities, resulting in an immaterial impact on net income.

Listed below are the contractual maturities of held-to-maturity securities at December 31, 2016 and December 31, 2015:

	December 31, 2016				December 31, 2015
(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	41,261		40,791		25,909		25,227
After 10 years	7,157,083		7,139,943		5,506,592		5,484,407
Total mortgage-backed securities	7,198,344		7,180,734		5,532,501		5,509,634
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	398,341		399,452		283,960		284,907
After 10 years	204,083		201,180		336,092		334,004
Total other agencies	602,424		600,632		620,052		618,911
Total U.S. Government backed agencies	7,800,768		7,781,366		6,152,553		6,128,545
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,171		5,902		7,037		6,913
Total municipal securities	6,171		5,902		7,037		6,913
Total held-to-maturity securities	$	7,806,939	$	7,787,268	$	6,159,590	$	6,135,458

The following table provides amortized cost, gross unrealized gains and losses, and fair value by investment category at December 31, 2016 and 2015:

			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

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
Federal agencies:
Mortgage-backed securities	$	5,532,501	$	14,637	$	(37,504	)	$	5,509,634
Other agencies	620,052		1,645		(2,786		)	618,911
Total U.S. Government backed agencies	6,152,553		16,282		(40,290		)	6,128,545
Municipal securities	7,037		—		(124		)	6,913
Total held-to-maturity securities	$	6,159,590	$	16,282	$	(40,414	)	$	6,135,458

The following tables provide detail on HTM securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position at December 31, 2016 and 2015:

	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	)

	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, 2015
Federal agencies:
Mortgage-backed securities	$	3,692,890	$	(25,418	)	$	519,872	$	(12,086	)	$	4,212,762	$	(37,504	)
Other agencies	425,410		(2,689		)	6,647		(97		)	432,057		(2,786		)
Total U.S. Government backed securities	4,118,300		(28,107		)	526,519		(12,183		)	4,644,819		(40,290		)
Municipal securities	—		—			6,913		(124		)	6,913		(124		)
Total temporarily impaired securities	$	4,118,300	$	(28,107	)	$	533,432	$	(12,307	)	$	4,651,732	$	(40,414	)

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 December 31, 2016 and 2015, The Company evaluated held-to-maturity securities with unrealized losses for impairment and concluded no OTTI is required.

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LOAN SALES AND SECURITIZATIONS

12 Months Ended

Dec. 31, 2016

Transfers and Servicing [Abstract]

LOAN SALES AND SECURITIZATIONS

LOAN SALES AND SECURITIZATIONS

Residential Mortgage Portfolio

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Residential mortgage loans sold with servicing retained	$	3,632,024	$	3,322,723	$	2,330,060
Pretax gains resulting from above loan sales (1)	96,585		83,148		57,590

(1) Recorded in mortgage banking income.

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the years ended December 31, 2016 and 2015:

Fair Value Method

(dollar amounts in thousands)	2016			2015
Fair value, beginning of year	$	17,585		$	22,786
Change in fair value during the period due to:
Time decay (1)	(950		)	(1,295		)
Payoffs (2)	(1,827		)	(3,031		)
Changes in valuation inputs or assumptions (3)	(1,061		)	(875		)
Fair value, end of year	$	13,747		$	17,585
Weighted-average life (years)	5.7			4.6

(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

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	143,133		$	132,812
New servicing assets created	37,813			35,407
Servicing assets acquired	15,317			—
Impairment recovery (charge)	1,918			(2,732		)
Amortization and other	(25,715		)	(22,354		)
Carrying value, end of year	$	172,466		$	143,133
Fair value, end of year	$	172,779		$	143,435
Weighted-average life (years)	7.2			5.9

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 economically 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 to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	10.90	%	$	(501	)	$	(970	)	14.70	%	$	(864	)	$	(1,653	)
Spread over forward interest rate swap rates	536 bps		(454		)	(879		)	539 bps		(559		)	(1,083		)

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	7.80	%	$	(4,510	)	$	(8,763	)	11.10	%	$	(5,543	)	$	(10,648	)
Spread over forward interest rate swap rates	1,173 bps		(5,259		)	(10,195		)	875 bps		(4,662		)	(9,017		)

Total servicing, late and other ancillary fees included in mortgage banking income was $50 million, $47 million, and $44 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of residential mortgage loans serviced for third parties was $18.9 billion, $16.2 billion, and $15.6 billion at December 31, 2016, 2015, and 2014, respectively.

Automobile Loans and Leases

The following table summarizes activity relating to automobile loans securitized with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015	2014 (1)
UPB of automobile loans securitized with servicing retained	$	1,500,000	750,000	—
Net proceeds received in loan securitizations	1,551,679		780,117	—
Servicing asset recognized in loan securitizations (2)	15,670		11,180	—
Pretax gains resulting from above loan securitizations (3)	5,632		5,333	—

(1) Huntington did not sell or securitize any automobile loans in 2014.

(2) Recorded in servicing rights.

(3) Recorded in gain on sale of 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 years ended December 31, 2016, and 2015, and the fair value at the end of each period were as follows:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	8,771		$	6,898
New servicing assets created	15,670			11,180
Amortization and other	(6,156		)	(9,307		)
Carrying value, end of year	$	18,285		$	8,771
Fair value, end of year	$	18,388		$	9,127
Weighted-average life (years)	4.2			3.2

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	19.98	%	$	(1,047	)	$	(2,026	)	18.36	%	$	(500	)	$	(895	)
Spread over forward interest rate swap rates	500 bps		(26		)	(53		)	500 bps		(10		)	(19		)

Servicing income was $9 million, $5 million, and $8 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of automobile loans serviced for third parties was $1.7 billion, $0.9 billion, and $0.8 billion at December 31, 2016, 2015, and 2014, respectively.

Small Business Association (SBA) Portfolio

The following table summarizes activity relating to SBA loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
SBA loans sold with servicing retained	$	269,923	$	232,848	$	214,760
Pretax gains resulting from above loan sales (1)	20,516		18,626		24,579

(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 years ended December 31, 2016, and 2015:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	19,747		$	18,536
New servicing assets created	8,705			8,012
Amortization and other	(7,372		)	(6,801		)
Carrying value, end of year	$	21,080		$	19,747
Fair value, end of year	$	24,270		$	22,649
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 December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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	%	$	(324	)	$	(644	)	7.60	%	$	(313	)	$	(622	)
Discount rate	15.00		(1,270		)	(1,870		)	15.00		(610		)	(1,194		)

Servicing income was $9 million, $8 million, and $7 million for the years ended December 31, 2016, 2015, and 2014, respectively. The unpaid principal balance of SBA loans serviced for third parties was $1.1 billion, $1.0 billion and $0.9 billion at December 31, 2016, 2015, and 2014, respectively.

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GOODWILL AND OTHER INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

Business segments are based on segment leadership structure, which reflects how segment performance is monitored and assessed. 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.

A rollforward of goodwill by business segment for the years ended December 31, 2016 and 2015, is presented in the table below:

	Consumer &
	Business		Commercial							Home		Treasury/			Huntington
(dollar amounts in thousands)	Banking		Banking		CREVF		RBHPCG			Lending		Other			Consolidated
Balance, January 1, 2015	$	368,097	$	59,594	$	—	$	90,012		$	—	$	4,838		$	522,541
Goodwill acquired during the period	—		155,828		—		—			—		—			155,828
Adjustments	—		—		—		(1,500		)	—		—			(1,500		)
Balance, December 31, 2015	368,097		215,422		—		88,512			—		4,838			676,869
Goodwill acquired during the period	1,030,046		237,542		—		53,230			—		—			1,320,818
Adjustments	—		—		—		—			—		(4,838		)	(4,838		)
Balance, December 31, 2016	$	1,398,143	$	452,964	$	—	$	141,742		$	—	$	—		$	1,992,849

On August 16, 2016, Huntington completed its acquisition of FirstMerit in a stock and cash transaction valued at approximately $3.7 billion. In connection with the acquisition, the Company recorded $1.3 billion of goodwill, $310 million core deposit intangible asset and $95 million of other intangible assets. Huntington allocated goodwill recognized in the acquisition of FirstMerit to its existing operating segments. The allocation was performed using the ‘with and without’ approach, where an entity calculates the fair value of each segment before and after the acquisition, with the difference attributable to the fair value acquired via the acquisition. This method is most appropriate when multiple segments are expected to benefit from synergies realized in an acquisition. The results of the allocation are presented in the table above. For additional information on the acquisition, see Note 3 Acquisition of FirstMerit Corporation.

During the 2016 third quarter, Huntington reclassified $5 million of goodwill in the Treasury / Other segment related to a held for sale disposal group.

On March 31, 2015, Huntington completed its acquisition of Macquarie Equipment Finance, which was re-branded Huntington Technology Finance. As part of the transaction, Huntington recorded $156 million of goodwill and $8 million of other intangible assets.

During 2015, Huntington adjusted the goodwill in the RBHPCG segment related to a sale of HASI and HAA. The amount was adjusted based on relative fair value methodology.

Goodwill is not amortized but is evaluated for impairment on an annual basis at October 1 of each year or whenever events or changes in circumstances indicate the carrying value may not be recoverable. As a result of the 2014 first quarter reorganization in our reported business segments, goodwill was reallocated among the business segments. Immediately following the reallocation, impairment of $3 million was recorded in the Home Lending reporting segment. No impairment was recorded in 2016 or 2015.

At December 31, 2016 and 2015, Huntington’s other intangible assets consisted of the following:

(dollar amounts in thousands)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Value
December 31, 2016
Core deposit intangible	$	324,619		$	(26,778	)	$	297,841
Customer relationship	194,956		(1)	(90,383		)	104,573
Other	150			(106		)	44
Total other intangible assets	$	519,725		$	(117,267	)	$	402,458
December 31, 2015
Core deposit intangible	$	400,058		$	(384,606	)	$	15,452
Customer relationship	116,094			(76,656		)	39,438
Other	25,164			(25,076		)	88
Total other intangible assets	$	541,316		$	(486,338	)	$	54,978

(1) During the 2016 third quarter, certain commercial merchant relationships, which resulted in an intangible of $14 million, were contributed to a joint venture in which Huntington holds a minority interest.

The estimated amortization expense of other intangible assets for the next five years is as follows:

(dollar amounts in thousands)	Amortization Expense
2017	$	56,333
2018	53,161
2019	50,446
2020	42,291
2021	39,783

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PREMISES AND EQUIPMENT

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

PREMISES AND EQUIPMENT

PREMISES AND EQUIPMENT

Premises and equipment were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016			2015
Land and land improvements	$	199,193		$	140,414
Buildings	523,181			366,963
Leasehold improvements	265,384			246,222
Equipment	721,014			647,769
Total premises and equipment	1,708,772			1,401,368
Less accumulated depreciation and amortization	(893,264		)	(780,828		)
Net premises and equipment	$	815,508		$	620,540

Depreciation and amortization charged to expense and rental income credited to net occupancy expense for the three years ended December 31, 2016, 2015, and 2014 were:

(dollar amounts in thousands)	2016		2015		2014
Total depreciation and amortization of premises and equipment	$	125,856	$	85,805	$	82,296
Rental income credited to occupancy expense	12,512		12,563		11,556

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SHORT-TERM BORROWINGS

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

SHORT-TERM BORROWINGS

SHORT-TERM BORROWINGS

Borrowings with original maturities of one year or less are classified as short-term and were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016		2015
Federal funds purchased and securities sold under agreements to repurchase	$	1,248,089	$	601,272
Federal Home Loan Bank advances	2,425,000		—
Other borrowings	19,565		14,007
Total short-term borrowings	$	3,692,654	$	615,279

Other borrowings consist of borrowings from the Treasury and other notes payable.

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LONG-TERM DEBT

12 Months Ended

Dec. 31, 2016

Debt Instruments [Abstract]

LONG-TERM DEBT

LONG-TERM DEBT

Huntington’s long-term debt consisted of the following:

	At December 31,
(dollar amounts in thousands)	2016		2015
The Parent Company:
Senior Notes:
3.19% Huntington Bancshares Incorporated medium-term notes due 2021	$	972,625	$	—
2.33% Huntington Bancshares Incorporated senior note due 2022	953,674		—
2.64% Huntington Bancshares Incorporated senior note due 2018	399,278		399,169
Subordinated Notes:
7.00% Huntington Bancshares Incorporated subordinated notes due 2020	319,857		326,379
3.55% Huntington Bancshares Incorporated subordinated notes due 2023	248,156		—
Sky Financial Capital Trust IV 2.40% junior subordinated debentures due 2036 (1)	74,320		74,320
Sky Financial Capital Trust III 2.40% junior subordinated debentures due 2036 (1)	72,165		72,165
Huntington Capital I Trust Preferred 1.70% junior subordinated debentures due 2027 (2)	68,720		110,706
Huntington Capital II Trust Preferred 1.06% junior subordinated debentures due 2028 (3)	31,576		54,030
Camco Statutory Trust I 2.30% due 2037 (4)	4,244		4,212
Total notes issued by the parent	3,144,615		1,040,981
The Bank:
Senior Notes:
2.24% Huntington National Bank senior notes due 2018	843,568		841,313
2.10% Huntington National Bank senior notes due 2018	747,170		745,894
1.75% Huntington National Bank senior notes due 2018	499,732		501,006
1.43% Huntington National Bank senior note due 2019	499,686		498,678
2.23% Huntington National Bank senior note due 2017	499,445		500,416
2.43% Huntington National Bank senior notes due 2020	498,448		498,185
2.97% Huntington National Bank senior notes due 2020	495,088		495,998
1.42% Huntington National Bank senior notes due 2017 (5)	250,000		250,000
5.04% Huntington National Bank medium-term notes due 2018	36,351		37,469
1.31% Huntington National Bank senior note due 2016	—		498,360
1.40% Huntington National Bank senior note due 2016	—		349,399
Subordinated Notes:
3.86% Huntington National Bank subordinated notes due 2026	239,293		—
6.67% Huntington National Bank subordinated notes due 2018	131,910		136,227
5.45% Huntington National Bank subordinated notes due 2019	81,155		83,833
5.59% Huntington National Bank subordinated notes due 2016	—		103,357
Total notes issued by the bank	4,821,846		5,540,135
FHLB Advances:
3.47% weighted average rate, varying maturities greater than one year	7,540		7,800
Other:
Huntington Technology Finance nonrecourse debt, 3.43% effective interest rate, varying maturities	277,523		301,577
Huntington Technology Finance ABS Trust 2014 1.70% due 2020	57,494		123,577
Huntington Technology Finance ABS Trust 2012 1.79% due 2017	—		27,153
Other	141		141
Total other	335,158		452,448
Total long-term debt	$	8,309,159	$	7,041,364

(1) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.400%

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.70%

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.625%

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.33%.

(5) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.425%.

Amounts above are net of unamortized discounts and adjustments related to hedging with derivative financial instruments. The derivative instruments, principally interest rate swaps, are used to hedge the fair values of certain fixed-rate debt by converting the debt to a variable rate. See Note 18 for more information regarding such financial instruments.

In August 2016, Parent Company and Bank subordinated debt with a fair value totaling $520 million was acquired by Huntington as part of the FirstMerit acquisition. See Note 3 Acquisition of FirstMerit Corporation for additional information on the method used to determine fair value.

In August 2016, Huntington issued $1.0 billion of senior notes at 99.849% of face value. The senior notes mature on January 14, 2022 and have a fixed coupon rate of 2.3%. At December 31, 2016, debt issuance costs of $5 million related to the note are reported on the balance sheet as a direct deduction from the face amount of the note.

In March 2016, Huntington issued $1.0 billion of senior notes at 99.803% of face value. The senior notes mature on March 14, 2021 and have a fixed coupon rate of 3.15%. At December 31, 2016, debt issuance costs of $5 million related to the note are reported on the balance sheet as a direct deduction from the face amount of the note.

In November 2015, the Bank issued $850 million of senior notes at 99.88% of face value. The senior bank note issuances mature on November 6, 2018 and have a fixed coupon rate of 2.20%. The senior notes may be redeemed one month prior to maturity date at 100% of principal plus accrued and unpaid interest.

In August 2015, the Bank issued $500 million of senior notes at 99.58% of face value. The senior bank note issuances mature on August 20, 2020 and have a fixed coupon rate of 2.88%.

In June 2015, the Bank issued $750 million of senior notes at 99.71% of face value. The senior bank note issuances mature on June 30, 2018 and have a fixed coupon rate of 2.00%.

On March 31, 2015, Huntington completed its acquisition of Huntington Technology Finance. As part of the acquisition, Huntington assumed $293 million of non-recourse debt with various financial institutions and maturity dates. The effective interest rate on the non-recourse debt is 3.20%. Huntington also assumed $255 million of debt associated with two securitizations. The securitization debt has various classes and associated maturity dates and has an effective interest rate of 1.70%.

In February 2015, the Bank issued $500 million of senior notes at 99.86% of face value. The senior bank note issuances mature on February 26, 2018 and have a fixed coupon rate of 1.70%. Also, in February 2015, the Bank issued $500 million of senior notes at 99.87% of face value. The senior bank note issuances mature on April 1, 2020 and have a fixed coupon rate of 2.40%. Both senior note issuances may be redeemed one month prior to the maturity date at 100% of principal plus accrued and unpaid interest.

Long-term debt maturities for the next five years and thereafter are as follows:

(dollar amounts in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
The Parent Company:
Senior notes	$	—	$	400,000	$	—	$	—	$	1,000,000	$	1,000,000	$	2,400,000
Subordinated notes	—		—		—		300,000		—		503,463		803,463
The Bank:
Senior notes	750,000		2,135,000		500,000		1,000,000		—		—		4,385,000
Subordinated notes	—		125,539		75,716		—		—		250,000		451,255
FHLB Advances	100		1,115		325		2,368		—		3,769		7,677
Other	64,288		84,357		62,048		81,551		42,187		726		335,157
Total	$	814,388	$	2,746,011	$	638,089	$	1,383,919	$	1,042,187	$	1,757,958	$	8,382,552

These maturities are based upon the par values of the long-term debt.

The terms of the long-term debt obligations contain various restrictive covenants including limitations on the acquisition of additional debt in excess of specified levels, dividend payments, and the disposition of subsidiaries. As of December 31, 2016, Huntington was in compliance with all such covenants.

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OTHER COMPREHENSIVE INCOME

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

OTHER COMPREHENSIVE INCOME

OTHER COMPREHENSIVE INCOME

The components of Huntington’s OCI in the three years ended December 31, 2016, 2015, and 2014, were as follows:

	2016
	Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	905		$	(320	)	$	585
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(203,048		)	70,599			(132,449		)
Less: Reclassification adjustment for net losses (gains) included in net income	(107,145		)	37,884			(69,261		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(309,288		)	108,163			(201,125		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	171			(60		)	111
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	2,381			(833		)	1,548
Less: Reclassification adjustment for net (gains) losses included in net income	(360		)	126			(234		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	2,021			(707		)	1,314
Net change in pension and other post-retirement obligations	38,218			(13,376		)	24,842
Total other comprehensive income (loss)	$	(268,878	)	$	94,020		$	(174,858	)

	2015
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	19,606		$	(6,933	)	$	12,673
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(26,021		)	9,108			(16,913		)
Less: Reclassification adjustment for net losses (gains) included in net income	(3,901		)	1,365			(2,536		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(10,316		)	3,540			(6,776		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	(474		)	166			(308		)
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	12,966			(4,538		)	8,428
Less: Reclassification adjustment for net (gains) losses included in net income	(220		)	77			(143		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	12,746			(4,461		)	8,285
Net change in pension and other post-retirement obligations	(7,795		)	2,728			(5,067		)
Total other comprehensive income (loss)	$	(5,839	)	$	1,973		$	(3,866	)

	2014
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	13,583		$	(4,803	)	$	8,780
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	86,618			(30,914		)	55,704
Less: Reclassification adjustment for net gains (losses) included in net income	(15,559		)	5,446			(10,113		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	84,642			(30,271		)	54,371
Net change in unrealized holding gains (losses) on available-for-sale equity securities	295			(103		)	192
Unrealized gains and losses on derivatives used in cash flow hedging relationships arising during the period	14,141			(4,949		)	9,192
Less: Reclassification adjustment for net losses (gains) losses included in net income	(3,971		)	1,390			(2,581		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	10,170			(3,559		)	6,611
Net change in pension and post-retirement obligations	(106,857		)	37,400			(69,457		)
Total other comprehensive income (loss)	$	(11,750	)	$	3,467		$	(8,283	)

Activity in accumulated OCI for the two years ended December 31, were as follows:

(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, 2014	$	15,137		$	484		$	(12,233	)	$	(225,680	)	$	(222,292	)
Other comprehensive income before reclassifications	(4,240		)	(308		)	8,428			—			3,880
Amounts reclassified from accumulated OCI to earnings	(2,536		)	—			(143		)	(5,067		)	(7,746		)
Period change	(6,776		)	(308		)	8,285			(5,067		)	(3,866		)
December 31, 2015	8,361			176			(3,948		)	(230,747		)	(226,158		)
Other comprehensive income before reclassifications	(131,864		)	111			1,548			—			(130,205		)
Amounts reclassified from accumulated OCI to earnings	(69,261		)	—			(234		)	24,842			(44,653		)
Period change	(201,125		)	111			1,314			24,842			(174,858		)
December 31, 2016	$	(192,764	)	$	287		$	(2,634	)	$	(205,905	)	$	(401,016	)

(1) Amount at December 31, 2016 includes $(82) million of net unrealized losses on securities transferred from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. The net unrealized losses 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 Consolidated Statements of Income for the years ended December 31, 2016 and 2015:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
(dollar amounts in thousands)	2016			2015
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	91,058		$	(144	)	Interest income—held-to-maturity securities—taxable
Realized gain (loss) on sale of securities	18,206			6,485			Noninterest income—net gains (losses) on sale of securities
OTTI recorded	(2,119		)	(2,440		)	Noninterest income—net gains (losses) on sale of securities
Total before tax	107,145			3,901
Tax (expense) benefit	(37,884		)	(1,365		)
Net of tax	$	69,261		$	2,536
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	361		$	210		Interest and fee income—loans and leases
Interest rate contracts	(1		)	10			Noninterest expense—other income
Total before tax	360			220
Tax (expense) benefit	(126		)	(77		)
Net of tax	$	234		$	143
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(40,186	)	$	5,827		Noninterest expense—personnel costs
Net periodic benefit costs	1,968			1,968			Noninterest expense—personnel costs
Total before tax	(38,218		)	7,795
Tax (expense) benefit	13,376			(2,728		)
Net of tax	$	(24,842	)	$	5,067

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SHAREHOLDERS' EQUITY

12 Months Ended

Dec. 31, 2016

Dec. 31, 2015

Stockholders' Equity Note [Abstract]

SHAREHOLDERS' EQUITY

SHAREHOLDERS’ EQUITY

The following is a summary of Huntington's non-cumulative perpetual preferred stock outstanding as of December 31, 2016.

(dollar amounts in thousands, except per share amounts)
Series	Issuance Date	Total Shares Outstanding	Carrying Amount		Dividend Rate		Earliest Redemption Date
Series A	11/14/2008	362,506	362,506		8.50	%	N/A
Series B	12/28/2011	35,500	23,785		3-mo. LIBOR + 270 bps		1/15/2017
Series D	3/21/2016	400,000	386,348		6.25	%	7/15/2021
Series D	5/5/2016	200,000	198,588		6.25	%	7/15/2021
Series C	8/16/2016	100,000	100,000		5.875	%	1/15/2022
Total		1,098,006	$	1,071,227

Each series of preferred stock has a liquidation value and redemption price per share of $1,000, plus any declared and unpaid dividends. All preferred stock, with the exception of Series A, has no stated maturity and redemption is solely at the option of the Company. Under current rules, any redemption of the preferred stock is subject to prior approval of the FRB.

Each share of the Series A Preferred Stock is non-voting and may be converted at any time, at the option of the holder, into 83.668 shares of common stock of Huntington, which represents an approximate initial conversion price of $11.95 per share of common stock. Since April 15, 2013, at the option of Huntington, the Series A Preferred Stock is subject to mandatory conversion into Huntington’s common stock at the prevailing conversion rate if the closing price of Huntington’s common stock exceeds 130% of the conversion price for 20 trading days during any 30 consecutive trading-day period. At the option of the holder, one share was converted to common stock during the fourth quarter of 2015.

Preferred Series C Stock issued and outstanding

In connection with the FirstMerit acquisition, during the 2016 third quarter, Huntington issued $100 million of preferred stock. As part of this transaction, Huntington issued 4,000,000 depositary shares, each representing a 1/40th ownership interest in a share of 5.875% Series C Non-Cumulative Perpetual Preferred Stock (Preferred C Stock), par value $0.01 per share, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share). Each holder of a depositary share, will be entitled to all proportional rights and preferences of the Preferred C Stock (including dividend, voting, redemption, and liquidation rights).

Dividends on the Preferred C Stock will be non-cumulative and payable quarterly in arrears, when, as and if authorized by the Company's board of directors or a duly authorized committee of the board and declared by the Company, at an annual rate of 5.875% per year on the liquidation preference of $1,000 per share, equivalent to $25 per depositary share. The dividend payment dates will be the fifteenth day of each January, April, July and October, commencing on October 15, 2016, or the next business day if any such day is not a business day.

The Preferred C Stock is perpetual and has no maturity date. Huntington may redeem the Preferred C Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after October 15, 2021 or (ii) in whole but not in part, within 90 days following a regulatory capital treatment event, in each case, at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends, without regard to any undeclared dividends, on the Series C Preferred Stock prior to the date fixed for redemption. If Huntington redeems the Preferred C Stock, the depositary will redeem a proportional number of depositary shares. Neither the holders of Preferred C Stock nor holders of depositary shares will have the right to require the redemption or repurchase of the Preferred C Stock or the depositary shares. Any redemption of the Preferred C Stock is subject to Huntington's receipt of any required prior approval by the Board of Governors of the Federal Reserve System.

Preferred Series D Stock issued and outstanding

During the 2016 first and second quarter, Huntington issued $400 million and $200 million of preferred stock, respectively. As part of these transactions, Huntington issued 24,000,000 depositary shares, each representing a 1/40th ownership interest in a share of 6.250% Series D Non-Cumulative Perpetual Preferred Stock (Preferred D Stock), par value $0.01 per share, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share). Each holder of a depositary share, will be entitled to all proportional rights and preferences of the Preferred D Stock (including dividend, voting, redemption, and liquidation rights). Costs of $15 million related to the issuance of the Preferred D Stock are reported as a direct deduction from the face amount of the stock.

Dividends on the Preferred D Stock will be non-cumulative and payable quarterly in arrears, when, as and if authorized by the Company's board of directors or a duly authorized committee of the board and declared by the Company, at an annual rate of 6.25% per year on the liquidation preference of $1,000 per share, equivalent to $25 per depositary share. The dividend payment dates will be the fifteenth day of each January, April, July and October, commencing on July 15, 2016, or the next business day if any such day is not a business day.

The Preferred D Stock is perpetual and has no maturity date. Huntington may redeem the Preferred D Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after April 15, 2021 or (ii) in whole but not in part, within 90 days following a regulatory capital treatment event, in each case, at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends and, in the case of a redemption following a regulatory capital treatment event, the prorated portion of dividends, whether or not declared, for the dividend period in which such redemption occurs. Notwithstanding the foregoing, pursuant to a commitment Huntington made to the Federal Reserve, for at least five years after the date of the issuance of depositary shares offered by the prospectus supplement, Huntington will not redeem or repurchase the Preferred D Stock, whether issued on March 21, 2016 or on the date of the issuance of the depositary shares offered by the prospectus supplement. If Huntington redeems the Preferred D Stock, the depositary will redeem a proportional number of depositary shares. Neither the holders of Preferred D Stock nor holders of depositary shares will have the right to require the redemption or repurchase of the Preferred D Stock or the depositary shares. Any redemption of the Preferred D Stock is subject to Huntington's receipt of any required prior approval by the Board of Governors of the Federal Reserve System.

2016 Comprehensive Capital Analysis and Review (CCAR)

On June 29, 2016, Huntington announced that the Federal Reserve did not object to the proposed capital actions included in Huntington's capital plan submitted to the Federal Reserve in April 2016 as part of the 2016 CCAR. These actions included an increase in the quarterly dividend per common share to $0.08, starting in the fourth quarter of 2016. Huntington’s capital plan also included the issuance of capital in connection with the acquisition of FirstMerit Corporation and continues the previously announced suspension of the Company’s 2015 share repurchase program.

2015 Share Repurchase Program

During 2015, Huntington repurchased a total of 23.0 million shares of common stock at a weighted average share price of $10.93.

23.0

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EARNINGS PER SHARE

12 Months Ended

Dec. 31, 2016

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 stock (See Note 13). 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 each of the three years ended December 31 was as follows:

	Year ended December 31,
(dollar amounts in thousands, except per share amounts)	2016			2015			2014
Basic earnings per common share:
Net income	$	711,821		$	692,957		$	632,392
Preferred stock dividends	(65,274		)	(31,873		)	(31,854		)
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Basic earnings per common share:	$	0.72		$	0.82		$	0.73
Diluted earnings per common share
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Effect of assumed preferred stock conversion	—			—			—
Net income applicable to diluted earnings per share	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Dilutive potential common shares:
Stock options and restricted stock units and awards	11,728			11,633			11,421
Shares held in deferred compensation plans	2,486			1,912			1,420
Other	138			172			323
Dilutive potential common shares:	14,352			13,717			13,164
Total diluted average common shares issued and outstanding	918,790			817,129			833,081
Diluted earnings per common share	$	0.70		$	0.81		$	0.72

Approximately 3.1 million, 1.6 million, and 2.6 million options to purchase shares of common stock outstanding at the end of December 31, 2016, 2015, and 2014, respectively, were not included in the computation of diluted earnings per share because the effect would be antidilutive.

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SHARE-BASED COMPENSATION

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION

Huntington sponsors nonqualified and incentive share based compensation plans. These plans provide for the granting of stock options and other awards to officers, directors, and other employees. Compensation costs are included in personnel costs on the Consolidated Statements of Income. Stock options are granted at the closing market price on the date of the grant. Options granted typically vest ratably over four years or when other conditions are met. Stock options, which represented a portion of the grant values, have no intrinsic value until the stock price increases. Options granted on or after May 1, 2015 have a contractual term of ten years. All options granted on or before April 30, 2015 have a contractual term of seven years.

2015 Long-Term Incentive Plan

In 2015, shareholders approved the Huntington Bancshares Incorporated 2015 Long-Term Incentive Plan (the 2015 Plan). Shares remaining under the 2012 Plan have been incorporated into the 2015 Plan and reduced the full number of shares covered by all awards. Accordingly, the total number of shares authorized for awards under the 2015 Plan is 30 million shares. At December 31, 2016, 16 million shares from the Plan were available for future grants. Huntington issues shares to fulfill stock option exercises and restricted stock unit and award vesting from available authorized common shares. At December 31, 2016, Huntington believes there are adequate authorized common shares to satisfy anticipated stock option exercises and restricted stock unit and award vesting in 2017.

Huntington uses the Black-Scholes option pricing model to value options in determining the share-based compensation expense. Forfeitures are estimated at the date of grant based on historical rates, and updated as necessary, and reduce the compensation expense recognized. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the date of grant. The expected dividend yield is based on the dividend rate and stock price at the date of the grant. Expected volatility is based on the estimated volatility of Huntington’s stock over the expected term of the option.

The following table presents the weighted average assumptions used in the option-pricing model at the grant date for options granted in the three years ended December 31, 2016, 2015, and 2014:

	2016			2015			2014
Assumptions
Risk-free interest rate	1.63		%	2.13		%	1.69		%
Expected dividend yield	3.18			2.57			2.61
Expected volatility of Huntington’s common stock	30.0			29.0			32.3
Expected option term (years)	6.5			6.5			5
Weighted-average grant date fair value per share	$	2.17		$	2.57		$	2.13

The following table presents total share-based compensation expense and related tax benefit for the three years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016		2015		2014
Share-based compensation expense	$	65,608	$	51,415	$	43,666
Tax benefit	22,496		17,618		14,779

Huntington’s stock option activity and related information for the year ended December 31, 2016, was as follows:

(amounts in thousands, except years and per share amounts)	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2016	16,121		$	7.25
Granted	1,596		10.06
Exercised	(2,372	)	5.90
Forfeited/expired	(471	)	15.73
Outstanding at December 31, 2016	14,874		$	7.50	3.6	$	85,159
Expected to vest (1)	3,656		$	9.59	7.1	$	13,267
Exercisable at December 31, 2016	10,985		$	6.75	2.4	$	71,114

(1) The number of options expected to vest includes an estimate of 233 thousand shares expected to be forfeited.

The aggregate intrinsic value represents the amount by which the fair value of underlying stock exceeds the “in-the-money” option exercise price. For the years ended December 31, 2016, 2015, and 2014, cash received for the exercises of stock options was $14 million, $26 million and $21 million, respectively. The tax benefit realized for the tax deductions from option exercises totaled $3 million, $7 million and $4 million in 2016, 2015, and 2014, respectively.

Huntington also grants restricted stock, restricted stock units, performance share awards, and other stock-based awards. Restricted stock units and awards are issued at no cost to the recipient, and can be settled only in shares at the end of the vesting period. Restricted stock awards provide the holder with full voting rights and cash dividends during the vesting period. Restricted stock units do not provide the holder with voting rights or cash dividends during the vesting period, but do accrue a dividend equivalent that is paid upon vesting, and are subject to certain service restrictions. Performance share awards are payable contingent upon Huntington achieving certain predefined performance objectives over the three-year measurement period. The fair value of these awards is the closing market price of Huntington’s common stock on the grant date.

The following table summarizes the status of Huntington’s restricted stock units and performance share awards as of December 31, 2016, and activity for the year ended December 31, 2016:

	Restricted Stock Awards				Restricted Stock Units				Performance Share Awards
(amounts in thousands, except per share amounts)	Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share
Nonvested at January 1, 2016	7		$	9.53	12,170		$	9.11	2,893		$	8.99
Granted	—		—		6,526		9.69		981		9.04
Assumed	916		9.68		—		—		807		9.68
Vested	(241	)	9.68		(3,142	)	7.91		(1,307	)	8.05
Forfeited	(26	)	9.68		(821	)	9.52		(67	)	9.78
Nonvested at December 31, 2016	656		$	9.68	14,733		$	9.61	3,307		$	9.63

The weighted-average grant date fair value of nonvested shares granted for the years ended December 31, 2016, 2015, and 2014 were $9.59, $10.86, and $9.09, respectively. The total fair value of awards vested during the years ended December 31, 2016, 2015, and 2014 was $31 million, $30 million, and $26 million, respectively. As of December 31, 2016, the total unrecognized compensation cost related to nonvested awards was $81 million with a weighted-average expense recognition period of 2.3 years.

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BENEFIT PLANS

12 Months Ended

Dec. 31, 2016

Compensation and Retirement Disclosure [Abstract]

BENEFIT PLANS

BENEFIT PLANS

Huntington sponsors the Plan, 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. Although not required, Huntington made a $150 million contribution to the Plan in the third quarter of 2016.

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 any employee retiring on or after January 1, 1993, post-retirement healthcare benefits are based upon the employee’s number of months of service and are limited to the actual cost of coverage. Life insurance benefits are a percentage of the employee’s base salary at the time of retirement, with a maximum of $50,000 of coverage. The employer paid portion of the post-retirement health and life insurance plan was eliminated for employees retiring on and after March 1, 2010. Eligible employees retiring on and after March 1, 2010, who elect retiree medical coverage, will pay the full cost of this coverage. Huntington will not provide any employer paid life insurance to employees retiring on and after March 1, 2010. Eligible employees will be able to convert or port their existing life insurance at their own expense under the same terms that are available to all terminated employees.

On January 1, 2015, Huntington terminated the company sponsored retiree health care plan for Medicare eligible retirees and their dependents. Instead, Huntington will partner with a third-party to assist the retirees and their dependents in selecting individual policies from a variety of carriers on a private exchange. This plan amendment resulted in a measurement of the liability at the approval date. The result of the measurement was a $5 million reduction of the liability and increase in accumulated other comprehensive income. It will also result in a reduction of expense over the estimated life of plan participants.

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016 and 2015, and the net periodic benefit cost for the years then ended:

	Pension Benefits				Post-Retirement Benefits
	2016		2015		2016		2015
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.38	%	4.54	%	3.64	%	3.81	%
Rate of compensation increase	N/A		N/A		N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (1)	4.54		4.12		3.81		3.73
Expected return on plan assets	6.75		7.00		N/A		N/A
Rate of compensation increase	N/A		N/A		N/A		N/A
N/A—Not Applicable

(1) The 2015 post-retirement benefit expense was remeasured as of September 30, 2015, for the purchase of life insurance contracts for participants due a death benefit. The discount rate was 3.72% from January 1, 2015 to September 30, 2015, and was changed to 3.77% for the period from September 30, 2015 to December 31, 2015.

The expected long-term rate of return on plan assets is an assumption reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected benefit obligation. The expected long-term rate of return is established at the beginning of the plan year based upon historical returns and projected returns on the underlying mix of invested assets.

The following table reconciles the beginning and ending balances of the benefit obligation of the Plan and the post-retirement benefit plan with the amounts recognized in the consolidated balance sheets at December 31:

	Pension Benefits						Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2016			2015
Projected benefit obligation at beginning of measurement year	$	754,714		$	799,594		$	8,025		$	15,963
Changes due to:
Service cost	4,100			1,830			—			—
Interest cost	26,992			31,937			219			506
Benefits paid	(18,306		)	(17,246		)	(1,915		)	(2,211		)
Settlements	(21,684		)	(27,976		)	—			(6,993		)
Medicare subsidies	—			—			—			117
Actuarial assumptions and gains and losses	(9,470		)	(33,425		)	963			643
Total changes	(18,368		)	(44,880		)	(733		)	(7,938		)
Projected benefit obligation at end of measurement year	$	736,346		$	754,714		$	7,292		$	8,025

The following table reconciles the beginning and ending balances of the fair value of Plan assets at the December 31, 2016 and 2015 measurement dates:

	Pension Benefits
(dollar amounts in thousands)	2016			2015
Fair value of plan assets at beginning of measurement year	$	594,217		$	653,013
Changes due to:
Actual return on plan assets	39,895			(16,122		)
Employer Contributions	150,000			—
Settlements	(20,081		)	(25,428		)
Benefits paid	(18,306		)	(17,246		)
Total changes	151,508			(58,796		)
Fair value of plan assets at end of measurement year	$	745,725		$	594,217

Huntington’s accumulated benefit obligation under the Plan was $736 million and $755 million at December 31, 2016 and 2015. As of December 31, 2016, the difference between the accumulated benefit obligation and the fair value of Huntington's plan assets was $9 million and is recorded in noncurrent liabilities.

The following table shows the components of net periodic benefit costs recognized in the three years ended December 31, 2016:

	Pension Benefits									Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2014			2016			2015			2014
Service cost	$	4,100		$	1,830		$	1,740		$	—		$	—		$	—
Interest cost	26,992			31,937			32,398			219			506			856
Expected return on plan assets	(40,895		)	(44,175		)	(45,783		)	—			—			—
Amortization of prior service credit	—			—			—			(1,968		)	(1,968		)	(1,609		)
Amortization of (gain) / loss	7,459			7,934			5,767			(288		)	(401		)	(571		)
Settlements	9,495			12,645			11,200			—			(3,090		)	—
Benefit costs	$	7,151		$	10,171		$	5,322		$	(2,037	)	$	(4,953	)	$	(1,324	)

Included in benefit costs are $2 million, $4 million, and $2 million of plan expenses that were recognized in the three years ended December 31, 2016, 2015, and 2014. It is Huntington’s policy to recognize settlement gains and losses as incurred. Assuming no cash contributions are made to the Plan during 2017, Management expects net periodic pension benefit, excluding any expense of settlements, to approximate $14 million for 2017. The post-retirement medical and life subsidy was eliminated for anyone who retires on or after March 1, 2010. As such, there were no incremental net periodic post-retirement benefits costs associated with this plan.

The estimated transition obligation, prior service credit, and net actuarial loss for the plans that will be amortized from OCI into net periodic benefit cost over the next fiscal year is zero, $2 million, and a $7 million benefit, respectively.

At December 31, 2016 and 2015, The Huntington National Bank, as trustee, held all Plan assets. The Plan assets consisted of investments in a variety of corporate and government fixed income investments, money market funds, and mutual funds as follows:

	Fair Value
(dollar amounts in thousands)	2016				2015
Cash equivalents:
Federated-money market	$	16,087	2	%	$	15,590	3	%
Fixed income:
Corporate obligations	212,967		28		205,081		34
U.S. Government Obligations	157,764		21		64,456		11
Mutual funds-fixed income	27,851		4		32,874		6
U.S. Government Agencies	7,201		1		6,979		1
Equities:
Mutual funds-equities	134,832		18		136,026		23
Common stock	144,754		19		120,046		20
Preferred stock	4,778		1		—		—
Exchange Traded Funds	28,101		4		6,530		1
Limited Partnerships	11,390		2		6,635		1
Fair value of plan assets	$	745,725	100	%	$	594,217	100	%

Investments of the Plan are accounted for at cost on the trade date and are reported at fair value. The valuation methodologies used to measure the fair value of pension plan assets vary depending on the type of asset. For an explanation of the fair value hierarchy, refer to Note 1 “Significant Accounting Policies” under the heading “Fair Value Measurements”. At December 31, 2016, equities and money market funds are classified as Level 1; mutual funds-fixed income, corporate obligations, U.S. government obligations, and U.S. government agencies are classified as Level 2; and limited partnerships are classified as Level 3.

In general, investments of the Plan are exposed to various risks such as interest rate risk, credit risk, and overall market volatility. Due to the level of risk associated with certain investments, it is reasonably possible changes in the values of investments will occur in the near term and such changes could materially affect the amounts reported in the Plan assets.

The investment objective of the Plan is to maximize the return on Plan assets over a long-time period, while meeting the Plan obligations. At December 31, 2016, Plan assets were invested 2% in cash and cash equivalents, 44% in equity investments, and 54% in bonds, with an average duration of 14.2 years on bond investments. The estimated life of benefit obligations was 12.7 years. Although it may fluctuate with market conditions, Management has targeted a long-term allocation of Plan assets of 20% to 50% in equity investments and 80% to 50% in bond investments. The allocation of Plan assets between equity investments and fixed income investments will change from time to time with the allocation to fixed income investments increasing as the funding level increases.

At December 31, 2016, the following table shows when benefit payments were expected to be paid:

(dollar amounts in thousands)	Pension Benefits		Post- Retirement Benefits
2017	$	46,199	$	923
2018	45,077		761
2019	43,720		684
2020	41,827		640
2021	41,528		606
2022 through 2026	205,278		2,482

Although not required, a cash contribution can be made to the Plan up to the maximum deductible limit in the plan year. Anticipated contributions for 2017 to the post-retirement benefit plan are zero.

The 2017 healthcare cost trend rate is projected to be 6.8% for participants. This rate is assumed to decrease gradually until it reaches 4.5% in the year 2028 and remain at that level thereafter. Huntington updated the immediate healthcare cost trend rate assumption based on current market data and Huntington’s claims experience. This trend rate is expected to decline over time to a trend level consistent with medical inflation and long-term economic assumptions.

Huntington also sponsors other nonqualified retirement plans, the most significant being the SERP and the SRIP. The SERP provides certain former officers and directors, and the SRIP provides certain current and former officers and directors of Huntington and its subsidiaries with defined pension benefits in excess of limits imposed by federal tax law. At December 31, 2016 and 2015, Huntington has an accrued pension liability of $33 million and $34 million, respectively, associated with these plans. Pension expense for the plans was $1 million, $1 million, and $1 million in 2016, 2015, and 2014, respectively.

The following table presents the amounts recognized in the Consolidated Balance Sheets at December 31, 2016 and 2015, for all defined benefit plans:

(dollar amounts in thousands)	2016	2015
Noncurrent liabilities	169,657	192,734

The following tables present the amounts recognized in OCI as of December 31, 2016, 2015, and 2014, and the changes in accumulated OCI for the years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016			2015			2014
Net actuarial loss	$	(217,863	)	$	(243,984	)	$	(240,197	)
Prior service cost	11,958			13,237			14,517
Defined benefit pension plans	$	(205,905	)	$	(230,747	)	$	(225,680	)

	2016
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(354,997	)	$	124,250		$	(230,747	)
Net actuarial (loss) gain:
Amounts arising during the year	37,818			(13,236		)	24,582
Amortization included in net periodic benefit costs	2,368			(829		)	1,539
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(316,779	)	$	110,874		$	(205,905	)

	2015
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(347,202	)	$	121,522		$	(225,680	)
Net actuarial (loss) gain:
Amounts arising during the year	(25,520		)	8,931			(16,589		)
Amortization included in net periodic benefit costs	19,693			(6,892		)	12,801
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(354,997	)	$	124,250		$	(230,747	)

	2014
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(240,345	)	$	84,122		$	(156,223	)
Net actuarial (loss) gain:
Amounts arising during the year	(133,085		)	46,580			(86,505		)
Amortization included in net periodic benefit costs	19,056			(6,670		)	12,386
Prior service cost:
Amounts arising during the year	8,781			(3,073		)	5,708
Amortization included in net periodic benefit costs	(1,609		)	563			(1,046		)
Balance, end of year	$	(347,202	)	$	121,522		$	(225,680	)

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 Plan. For 2015 and 2016, a discretionary profit-sharing contribution equal to 1% of eligible participants’ annual base pay was awarded.

The following table shows the costs of providing the defined contribution plan:

	Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Defined contribution plan	$	36,107	$	31,896	$	31,110

The following table shows the number of shares, market value, and dividends received on shares of Huntington stock held by the defined contribution plan:

	December 31,
(dollar amounts in thousands, except share amounts)	2016		2015
Shares in Huntington common stock	11,748,379		13,076,164
Market value of Huntington common stock	$	162,245	$	144,622
Dividends received on shares of Huntington stock	3,692		3,076

FirstMerit Benefit Plans

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. At the time of acquisition, the benefit obligation was $330 million and the fair value of assets was $280 million. In addition, FirstMerit had a post retirement benefit plan which provided medical and life insurance for retired employees. At the time of acquisition, the benefit obligation was $7 million.

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016, and the net periodic benefit cost for the year then ended:

	Pension Benefits		Post-Retirement Benefits
	2016		2016
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.49	%	4.16	%
Rate of compensation increase	N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.12	%	3.57	%
Expected return on plan assets	6.00		N/A
Rate of compensation increase	N/A		N/A
N/A—Not Applicable

The following table reconciles the beginning and ending balances of the benefit obligation of FirstMerit's pension and post-retirement benefit plan with the amounts recognized in the consolidated balance sheet at the December 31, 2016:

	Pension Benefits			Post-Retirement Benefits
(dollar amounts in thousands)	2016			2016
Projected benefit obligation at beginning of measurement year (1)	$	329,679		$	7,196
Changes due to:
Service cost	954			49
Interest cost	3,218			70
Benefits paid	(2,463		)	(250		)
Settlements	(180,885		)	—
Actuarial assumptions and gains and losses	(35,840		)	(703		)
Total changes	(215,016		)	(834		)
Projected benefit obligation at end of measurement year	$	114,663		$	6,362

(1) The beginning measurement period started August 15, 2016.

During the 2016 fourth quarter, Huntington completed two settlements of the FirstMerit pension benefit obligation totaling $181 million. The settlements triggered settlement accounting, requiring a remeasurement of the plan as of November 30, 2016, and the recognition in the income statement of previously deferred amounts in OCI. The result was a gain of approximately $18 million and is reflected in personnel costs.

The following table reconciles the beginning and ending balances of the fair value of FirstMerit's plan assets at the December 31, 2016 measurement date:

	Pension Benefits
(dollar amounts in thousands)	2016
Fair value of plan assets at beginning of measurement year (1)	$	280,217
Changes due to:
Actual return on plan assets	(3,068		)
Settlements	(179,114		)
Benefits paid	(2,463		)
Total changes	(184,645		)
Fair value of plan assets at end of measurement year	$	95,572

(1) The beginning measurement period started August 15, 2016.

FirstMerit’s accumulated benefit obligation under the pension plan was $115 million at December 31, 2016. As of December 31, 2016, the difference between the accumulated benefit obligation and the fair value was $19 million and is recorded in noncurrent liabilities.

The following table shows the components of FirstMerit's net periodic benefit costs recognized in the year ended December 31, 2016:

	Pension Benefits			Post-Retirement Benefits
(dollar amounts in thousands)	2016			2016
Service cost	$	954		$	49
Interest cost	3,218			70
Expected return on plan assets	(4,893		)	—
Amortization of (gain) / loss	(20		)	—
Settlements	(17,605		)	—
Benefit costs	$	(18,346	)	$	119

Included in FirstMerit's benefit costs is $1 million of plan expenses that were recognized in the year ended December 31, 2016. It is Huntington’s policy to recognize settlement gains and losses as incurred. Assuming no cash contributions are made to the Plan during 2017, Management expects net periodic pension benefit, excluding any expense of settlements, to approximate $1 million in 2017.

At December 31, 2016 the fair value of FirstMerit plan assets are as follows:

	Fair Value
(dollar amounts in thousands)	2016
Cash equivalents:
Federated-money market	$	5,431	6	%
Fixed income:
Corporate obligations	5,375		6
U.S. Government Obligations	6,466		7
Mutual funds-fixed income	23,317		24
U.S. Government Agencies	2,801		3
Equities:
Mutual funds-equities	15,395		16
Common stock	36,787		38
Fair value of plan assets	$	95,572	100	%

At December 31, 2016, the following table shows when benefit payments were expected to be paid:

(dollar amounts in thousands)	Pension Benefits		Post- Retirement Benefits
2017	$	8,673	$	904
2018	4,471		841
2019	4,811		220
2020	4,926		221
2021	4,945		222
2022 through 2026	26,853		1,150

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INCOME TAXES

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state, city, and foreign jurisdictions. Federal income tax audits have been completed 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.

Huntington accounts for uncertainties in income taxes in accordance with ASC 740, Income Taxes. At December 31, 2016, Huntington had gross unrecognized tax benefits of $24 million in income tax liability related to uncertain tax positions. Due to the complexities of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from the current estimate of the tax liabilities. Huntington does not anticipate the total amount of gross unrecognized tax benefits to significantly change within the next 12 months.

The following table provides a reconciliation of the beginning and ending amounts of gross unrecognized tax benefits:

(dollar amounts in thousands)	2016		2015
Unrecognized tax benefits at beginning of year	$	23,104	$	1,172
Gross increases for tax positions taken during current period	657		23,104
Gross increases for tax positions taken during prior years	—		—
Gross decreases for tax positions taken during prior years	—		(1,172		)
Unrecognized tax benefits at end of year	$	23,761	$	23,104

Any interest and penalties on income tax assessments or income tax refunds are recognized in the Consolidated Statements of Income as a component of provision for income taxes. Huntington recognized, no interest expense, $0.1 million of interest benefit, and $0.1 million of interest expense for the years ended December 31, 2016, 2015 and 2014, respectively. Total interest accrued was $0.1 million and $0.1 million at December 31, 2016 and 2015, respectively. All of the gross unrecognized tax benefits would impact the Company’s effective tax rate if recognized.

The following is a summary of the provision (benefit) for income taxes:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Current tax provision (benefit)
Federal	$	39,738	$	146,195	$	186,436
State	3,456		5,677		(1,017		)
Total current tax provision (benefit)	43,194		151,872		185,419
Deferred tax provision (benefit)
Federal	160,610		66,823		41,167
State	4,137		1,953		(5,993		)
Total deferred tax provision (benefit)	164,747		68,776		35,174
Provision for income taxes	$	207,941	$	220,648	$	220,593

The following is a reconciliation for provision for income taxes:

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Provision for income taxes computed at the statutory rate	$	321,925		$	319,762		$	298,545
Increases (decreases):
Tax-exempt income	(27,453		)	(20,839		)	(17,971		)
Tax-exempt bank owned life insurance income	(20,149		)	(18,340		)	(19,967		)
General business credits	(64,151		)	(47,894		)	(46,047		)
State deferred tax asset valuation allowance adjustment, net	—			—			(7,430		)
Capital loss	(45,500		)	(46,288		)	(26,948		)
Affordable housing investment amortization, net of tax benefits	36,848			31,741			33,752
State income taxes, net	4,936			4,960			2,873
Other	1,485			(2,454		)	3,786
Provision for income taxes	$	207,941		$	220,648		$	220,593

The significant components of deferred tax assets and liabilities at December 31, were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Deferred tax assets:
Allowances for credit losses	$	254,977		$	238,415
Fair value adjustments	216,768			121,642
Net operating and other loss carryforward	140,842			61,492
Tax credit carryforward	76,328			1,823
Accrued expense/prepaid	64,380			44,733
Pension and other employee benefits	34,921			2,405
Partnership investments	22,514			21,614
Market discount	8,295			11,781
Purchase accounting adjustments	—			41,917
Other	10,506			11,645
Total deferred tax assets	829,531			557,467
Deferred tax liabilities:
Lease financing	325,091			261,078
Loan origination costs	137,577			114,488
Purchase accounting adjustments	74,371			6,944
Securities adjustments	55,786			19,952
Operating assets	54,372			46,685
Mortgage servicing rights	51,440			48,514
Pension and other employee benefits	—			—
Other	8,796			5,463
Total deferred tax liabilities	707,433			503,124
Net deferred tax asset before valuation allowance	122,098			54,343
Valuation allowance	(5,003		)	(3,620		)
Net deferred tax asset	$	117,095		$	50,723

At December 31, 2016, Huntington’s net deferred tax asset related to loss and other carryforwards was $217 million. This was comprised of federal net operating loss carryforwards of $97 million, which will begin expiring in 2023, $44 million of state net operating loss carryforwards, which will begin expiring in 2017, an alternative minimum tax credit carryforward of $73 million, which may be carried forward indefinitely, and a general business credit carryforward of $3 million, which will begin expiring in 2030.

In prior periods, Huntington established a valuation allowance against deferred tax assets for state deferred tax assets, and state net operating loss carryforwards. The state valuation allowance was based on the uncertainty of forecasted state taxable income expected in applicable jurisdictions in order to utilize the state deferred tax assets and state net operating loss carryforwards. Based on current analysis of both positive and negative evidence and projected forecasted taxable income within applicable jurisdictions, the Company believes that it is more likely than not, portions of the state deferred tax assets and state net operating loss carryforwards will be realized. As a result of this analysis, the state valuation allowance was $5 million at December 31, 2016 compared to $4 million at December 31, 2015.

At December 31, 2016 retained earnings included approximately $12 million of base year reserves of acquired thrift institutions, for which no deferred federal income tax liability has been recognized. Under current law, if these bad debt reserves are used for purposes other than to absorb bad debt losses, they will be subject to federal income tax at the current corporate rate. The amount of unrecognized deferred tax liability relating to the cumulative bad debt deduction was approximately $4 million at December 31, 2016.

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FAIR VALUES OF ASSETS AND LIABILITIES

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

FAIR VALUES OF ASSETS AND LIABILITIES

FAIR VALUES OF ASSETS AND LIABILITIES

Following is a description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy.

Loans held for sale

Huntington has elected to apply the fair value option for mortgage loans originated with the intent to sell which are included in loans held for sale. Mortgage loans held for sale are classified as Level 2 and are estimated using security prices for similar product types.

Loans held for investment

Certain mortgage loans originated with the intent to sell have been reclassified to mortgage loans held for investment. These loans continue to be measured at fair value. The fair value is determined using fair value of similar mortgage-backed securities adjusted for loan specific variables.

Huntington elected the fair value option for consumer loans with deteriorated credit quality acquired from FirstMerit in accordance with ASC 825. Management decided to elect the fair value option on these consumer loans to allow for operational efficiencies not normally associated with purchased credit impaired loans. The consumer loans are classified as Level 3. The key assumption used to determine the fair value of the consumer loans is discounted cash flows.

Available-for-sale securities and trading account securities

Securities accounted for at fair value include both the available-for-sale and trading portfolios. Huntington uses prices obtained from third-party pricing services and recent trades to determine the fair value of securities. AFS and trading securities are classified as Level 1 using quoted market prices (unadjusted) in active markets for identical securities that Huntington has the ability to access at the measurement date. Less than 1% of the positions in these portfolios are Level 1, and consist of U.S. Treasury securities and money market mutual funds. When quoted market prices are not available, fair values are classified as Level 2 using quoted prices for similar assets in active markets, quoted prices of identical or similar assets in markets that are not active, and inputs that are observable for the asset, either directly or indirectly, for substantially the full term of the financial instrument. 81% of the positions in these portfolios are Level 2, and consist of U.S. Government and agency debt securities, agency mortgage backed securities, asset-backed securities other than the CDO-preferred securities portfolio, certain municipal securities and other securities. For Level 2 securities management uses various methods and techniques to corroborate prices obtained from the pricing service, including references to dealer or other market quotes, and by reviewing valuations of comparable instruments. If relevant market prices are limited or unavailable, valuations may require significant management judgment or estimation to determine fair value, in which case the fair values are classified as Level 3. 19% of our positions are Level 3, and consist of CDO-preferred securities and municipal securities. A significant change in the unobservable inputs for these securities may result in a significant change in the ending fair value measurement of these securities.

The municipal securities portion that is classified as Level 3 uses significant estimates to determine the fair value of these securities which results in greater subjectivity. The fair value is determined by utilizing third-party valuation services. The third-party service provider reviews credit worthiness, prevailing market rates, analysis of similar securities, and projected cash flows. The third-party service provider also incorporates industry and general economic conditions into their analysis. Huntington evaluates the analysis provided for reasonableness.

The CDO-preferred securities portfolios are classified as Level 3 and as such use significant estimates to determine the fair value of these securities which results in greater subjectivity. The CDO-preferred securities portfolio are subjected to a quarterly review of the projected cash flows. These reviews are supported with analysis from independent third parties, and are used as a basis for impairment analysis.

CDO-preferred securities are CDOs 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. A cash flow analysis is used to estimate fair values and assess impairment for each security within this portfolio. We engage a third-party pricing specialist with direct industry experience in CDO-preferred securities valuations to provide assistance in estimating the fair value and expected cash flows for each security in this portfolio. The PD of each issuer and the market discount rate are the most significant inputs in determining fair value. The Company evaluates the PD assumptions provided by the third-party pricing specialist by comparing the current PD to the assumptions used the previous quarter, actual defaults and deferrals in the current period, and trend data on certain financial ratios of the issuers. Huntington also evaluates the assumptions related to discount rates. Relying on cash flows is necessary because there was a lack of observable transactions in the market and many of the original sponsors or dealers for these securities are no longer able to provide a fair value.

MSRs

MSRs do not trade in an active market with readily observable prices. Accordingly, the fair value of these assets is classified as Level 3. Huntington determines the fair value of MSRs using an income approach model based upon the month-end interest rate curve and prepayment assumptions. The model utilizes assumptions to estimate future net servicing income cash flows, including estimates of time decay, payoffs, and changes in valuation inputs and assumptions. Servicing brokers and other sources of information (e.g. discussion with other mortgage servicers and industry surveys) are used to obtain information on market practice and assumptions. On at least a quarterly basis, third-party marks are obtained from at least one servicing broker. Huntington reviews the valuation assumptions against this market data for reasonableness and adjusts the assumptions if deemed appropriate. Any recommended change in assumptions and/or inputs are presented for review to the Mortgage Price Risk Subcommittee for final approval.

Derivative assets and liabilities

Derivatives classified as Level 2 consist of foreign exchange and commodity contracts, which are valued using exchange traded swaps and futures market data. In addition, Level 2 includes interest rate contracts, which are valued using a discounted cash flow method that incorporates current market interest rates. Level 2 also includes exchange traded options and forward commitments to deliver mortgage-backed securities, which are valued using quoted prices.

Derivatives classified as Level 3 consist of interest rate lock agreements related to mortgage loan commitments. The determination of fair value includes assumptions related to the likelihood that a commitment will ultimately result in a closed loan, which is a significant unobservable assumption. A significant increase or decrease in the external market price would result in a significantly higher or lower fair value measurement.

Short-term borrowings

Short-term borrowings classified as Level 2 consist primarily of U.S. Treasury bond securities sold under agreement to repurchase. These securities are borrowed from other institutions and must be repaid by purchasing the securities in the open market.

Assets and Liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at December 31, 2016 and 2015 are summarized below:

	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

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	337,577	$	—	$	—		$	337,577
Loans held for investment	—		32,889		1,748		—			34,637
Trading account securities:
Municipal securities	—		4,159		—		—			4,159
Other securities	32,475		363		—		—			32,838
	32,475		4,522		—		—			36,997
Available-for-sale and other securities:
U.S. Treasury securities	5,472		—		—		—			5,472
Federal agencies: Mortgage-backed	—		4,521,688		—		—			4,521,688
Federal agencies: Other agencies	—		115,913		—		—			115,913
Municipal securities	—		360,845		2,095,551		—			2,456,396
Asset-backed securities	—		761,076		100,337		—			861,413
Corporate debt	—		466,477		—		—			466,477
Other securities	11,397		3,899		—		—			15,296
	16,869		6,229,898		2,195,888		—			8,442,655
MSRs	—		—		17,585		—			17,585
Derivative assets	—		429,448		6,721		(161,297		)	274,872
Liabilities
Derivative liabilities	—		287,994		665		(144,309		)	144,350
Short-term borrowings	—		1,770		—		—			1,770

(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 years ended December 31, 2016, 2015, and 2014 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 Year ended December 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)	—			(7,251		)	—			—			—
Total gains/losses for the period:
Included in earnings	(3,838		)	(928		)	7,049			(2,593		)	(2,353		)
Included in OCI	—			—			(28,270		)	6,448			—
Purchases/originations	—			—			1,399,394			—			56,469
Sales	—			—			(37,444		)	(25,196		)	—
Repayments	—			—			—			—			(7,984		)
Settlements	—			—			(638,236		)	(2,993		)	—
Closing balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
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	$	(3,838	)	$	(928	)	$	(33,415	)	$	3,722		$	—

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

	Level 3 Fair Value Measurements Year ended December 31, 2015
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private- label CMO			Asset- backed securities			Loans held for investment
Opening balance	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			(2,793		)	—			—			—			—
Total gains/losses for the period:
Included in earnings	(5,201		)	5,489			149			47			(2,400		)	(497		)
Included in OCI	—			—			(3,652		)	1,832			24,802			—
Purchases/originations	—			—			1,002,153			—			—			—
Sales	—			—			(9,656		)	(30,077		)	—			—
Repayments	—			—			—			—			—			(8,345		)
Settlements	—			—			(311,036		)	(2,266		)	(4,803		)	—
Closing balance	$	17,585		$	6,056		$	2,095,551		$	—		$	100,337		$	1,748
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	$	(5,201	)	$	5,489		$	—		$	—		$	(2,440	)	$	(497	)

	Level 3 Fair Value Measurements Year Ended December 31, 2014
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private label CMO			Asset- backed securities			Loans held for investment
Balance, beginning of year	$	34,236		$	2,390		$	654,537		$	32,140		$	107,419		$	52,286
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			—			—			—			—			—
Total gains/losses for the period:
Included in earnings	(11,450		)	3,047			—			36			226			(918		)
Included in OCI	—			—			14,776			452			21,839			—
Purchases/originations	—			—			1,038,348			—			—			—
Sales	—			—			—			—			(22,870		)	—
Repayments	—			—			—			—			—			(40,778		)
Settlements	—			(2,077		)	(290,068		)	(2,164		)	(23,876		)	—
Balance, end of year	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
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	$	(11,450	)	$	3,047		$	14,776		$	452		$	21,137		$	(1,624	)

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 years ended December 31, 2016, 2015, and 2014:

	Level 3 Fair Value Measurements Year ended December 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	$	(3,838	)	$	(928	)	$	—	$	—		$	—
Securities gains (losses)	—			—			788		(2,598		)	—
Interest and fee income	—			—			—		—			—
Noninterest income	—			—			6,261		5			(2,353		)
Total	$	(3,838	)	$	(928	)	$	7,049	$	(2,593	)	$	(2,353	)

	Level 3 Fair Value Measurements Year ended December 31, 2015
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private- label CMO		Asset- backed securities			Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(5,201	)	$	5,489	$	—	$	—	$	—		$	—
Securities gains (losses)	—			—		149		—		(2,440		)	—
Interest and fee income	—			—		—		47		40			(497		)
Noninterest income	—			—		—		—		—			—
Total	$	(5,201	)	$	5,489	$	149	$	47	$	(2,400	)	$	(497	)

	Level 3 Fair Value Measurements Year Ended December 31, 2014
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private label CMO		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income (loss)	$	(11,450	)	$	3,047	$	—	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		170		—
Interest and fee income	—			—		—		36		56		(1,032		)
Noninterest income	—			—		—		—		—		114
Total	$	(11,450	)	$	3,047	$	—	$	36	$	226	$	(918	)

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:

	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		)

	December 31, 2015
	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	$	337,577	$	326,802	$	10,775		$	1,268	$	1,294	$	(26	)
Loans held for investment	34,637		35,385		$	(748	)	428		497		$	(69	)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the years ended December 31, 2016, 2015, and 2014:

	Net gains (losses) from fair value changes Year ended December 31,
(dollar amounts in thousands)	2016		2015			2014
Assets
Loans held for sale	$	6,741	$	(2,342	)	$	(1,978	)
Loans held for investment	—		(568		)	(918		)

	Gains (losses) included in fair value changes associated with instrument specific credit  risk Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Assets
Loans held for investment	$	436	$	199	$	911

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 year ended December 31, 2016, 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) Year ended December 31, 2016
MSRs	$	171,309	$	—	$	—	$	171,309	$	1,918
Impaired loans	53,818		—		—		53,818		11,412
Other real estate owned	50,930		—		—		50,930		(620		)

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.

The appraisals supporting the fair value of the collateral to recognize loan impairment or unrealized loss on other real estate owned properties may not have been obtained as of December 31, 2016.

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 December 31, 2016:

	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	Discount 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 December 31, 2016 and December 31, 2015:

	December 31, 2016				December 31, 2015
	Carrying		Fair		Carrying		Fair
(dollar amounts in thousands)	Amount		Value		Amount		Value
Financial Assets:
Cash and short-term assets	$	1,443,037	$	1,443,037	$	898,994	$	898,994
Trading account securities	133,295		133,295		36,997		36,997
Loans held for sale	512,951		515,640		474,621		484,511
Available-for-sale and other securities	15,562,837		15,562,837		8,775,441		8,775,441
Held-to-maturity securities	7,806,939		7,787,268		6,159,590		6,135,458
Net loans and direct financing leases	66,323,583		66,294,639		49,743,256		48,024,998
Derivatives	238,219		238,219		274,872		274,872
Financial Liabilities:
Deposits	75,607,717		76,161,091		55,294,979		55,299,435
Short-term borrowings	3,692,654		3,692,654		615,279		615,279
Long-term debt	8,309,159		8,387,444		7,041,364		7,016,789
Derivatives	98,286		98,286		144,350		144,350

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 Consolidated Balance Sheets at fair value at December 31, 2016 and December 31, 2015:

	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

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	6,135,458	$	—	$	6,135,458
Net loans and direct financing leases	—		—		48,024,998		48,024,998
Financial Liabilities
Deposits	—		51,869,105		3,430,330		55,299,435
Short-term borrowings	—		1,770		613,509		615,279
Long-term debt	—		—		7,016,789		7,016,789

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

12 Months Ended

Dec. 31, 2016

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 December 31, 2016, identified by the underlying interest rate-sensitive instruments:

(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	3,325,000	$	3,325,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	6,525,000		—		6,525,000
Total notional value at December 31, 2016	$	7,475,000	$	3,325,000	$	10,800,000

The following table presents additional information about the interest rate swaps used in Huntington’s asset and liability management activities at December 31, 2016:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	3,325,000	0.6	$	(2,060	)	1.04	%	0.91	%
Liability conversion swaps
Receive fixed—generic	7,475,000		3.1	(51,496		)	1.49		0.88
Total swap portfolio at December 31, 2016	$	10,800,000	2.3	$	(53,556	)	1.35	%	0.89	%

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 $72 million, $108 million, and $98 million for the years ended December 31, 2016, 2015, and 2014, 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 December 31, 2016, 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 December 31, 2016 and 2015 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)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	46,440	$	80,513
Interest rate contracts not designated as hedging instruments	213,587		190,846
Foreign exchange contracts not designated as hedging instruments	23,265		37,727
Commodity contracts not designated as hedging instruments	108,026		117,894
Equity contracts not designated as hedging instruments	9,775		—
Total contracts	$	401,093	$	426,980

Liability derivatives included in accrued expenses and other liabilities:

(dollar amounts in thousands)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	99,996	$	15,215
Interest rate contracts not designated as hedging instruments	143,976		121,815
Foreign exchange contracts not designated as hedging instruments	19,576		35,283
Commodity contracts not designated as hedging instruments	104,328		114,887
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	367,876	$	287,200

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:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	(82	)	$	(996	)	$	(1,045	)
Change in fair value of hedged deposits (1)	72			992			1,025
Change in fair value of interest rate swaps hedging subordinated notes (2)	(47,852		)	(8,237		)	476
Change in fair value of hedged subordinated notes (2)	45,019			8,237			(476		)
Change in fair value of interest rate swaps hedging long-term debt (2)	(74,481		)	3,903			1,990
Change in fair value of hedged other long-term debt (2)	67,389			(3,602		)	828

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

The following table presents the gains and (losses) recognized in OCI and the location in the 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)						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) (pre-tax)
(dollar amounts in thousands)	2016		2015		2014			2016			2015			2014
Interest rate contracts
Loans	$	1,548	$	8,428	$	9,192	Interest and fee income—loans and leases	$	(361	)	$	(210	)	$	(4,064	)
Investment securities	—		—		—		Noninterest income - other income	1			(10		)	93
Total	$	1,548	$	8,428	$	9,192		$	(360	)	$	(220	)	$	(3,971	)

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 $(2) 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 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 years ending December 31, 2016, 2015, and 2014:

	December 31,
(dollar amounts in thousands)	2016			2015			2014
Derivatives in cash flow hedging relationships
Interest rate contracts:
Loans	$	(317	)	$	(763	)	$	74

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)	December 31, 2016			December 31, 2015
Derivative assets:
Interest rate lock agreements	$	5,747		$	6,721
Forward trades and options	13,319			2,468
Total derivative assets	19,066			9,189
Derivative liabilities:
Interest rate lock agreements	(1,598		)	(220		)
Forward trades and options	(1,173		)	(1,239		)
Total derivative liabilities	(2,771		)	(1,459		)
Net derivative asset	$	16,295		$	7,730

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 December 31, 2016 and 2015, was $0.3 billion and $0.5 billion, respectively. The total notional amount at December 31, 2016 corresponds to trading assets with a fair value of $1 million and trading liabilities with a fair value of $3 million. Net trading gains (losses) related to MSR hedging for the years ended December 31, 2016, 2015, and 2014, were $(1) million, $(2) million, and $7 million, respectively. These amounts are included in mortgage banking income in the 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 December 31, 2016 and December 31, 2015, were $80 million and $76 million, respectively. The total notional values of derivative financial instruments used by Huntington on behalf of customers, including offsetting derivatives, were $20.6 billion and $14.6 billion at December 31, 2016 and December 31, 2015, respectively. Huntington’s credit risks from interest rate swaps used for trading purposes were $196 million and $224 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 Consolidated Statements of Income. At December 31, 2016, 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 $582 million and $344 million at December 31, 2016 and December 31, 2015, 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 $3 million at December 31, 2016 and a negative value (payable) of $6 million at December 31, 2015. These contracts mature between 2017 and 2043 and are deemed investment grade.

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

Huntington records derivatives at fair value as further described in Note 18. Huntington records these derivatives net of any master netting arrangement in the 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 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 December 31, 2016 and December 31, 2015, aggregate credit risk associated with these derivatives, net of collateral that has been pledged by the counterparty, was $26 million and $15 million, respectively. The credit risk associated with interest rate swaps is calculated after considering master netting agreements with broker-dealers and banks.

At December 31, 2016, Huntington pledged $172 million of investment securities and cash collateral to counterparties, while other counterparties pledged $90 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 Consolidated Balance Sheets at December 31, 2016 and December 31, 2015:

Offsetting of Financial Assets and Derivative Assets
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
December 31, 2016	Derivatives	$	420,159	$	(181,940	)	$	238,219	$	(34,328	)	$	(5,428	)	$	198,463
December 31, 2015	Derivatives	436,169		(161,297		)	274,872		(39,305		)	(3,462		)	232,105

Offsetting of Financial Liabilities and Derivative Liabilities
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
December 31, 2016	Derivatives	$	370,647	$	(272,361	)	$	98,286	$	(7,550	)	$	(23,943	)	$	66,793
December 31, 2015	Derivatives	288,659		(144,309		)	144,350		(62,460		)	(20		)	81,870

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VIEs

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

VIEs

Consolidated VIEs

Consolidated VIEs at December 31, 2016, 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. During the 2015 first quarter, Huntington acquired two securitization trusts with its acquisition of Huntington Technology Finance. During the 2016 first quarter, Huntington canceled the Series 2012A Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust.

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Consolidated Balance Sheets at December 31, 2016 and 2015:

	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

	December 31, 2015
	Huntington Technology Funding Trust				Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2012A		Series 2014A
Assets:
Cash	$	1,377	$	1,561	$	—	$	2,938
Net loans and leases	32,180		152,331		—		184,511
Accrued income and other assets	—		—		229		229
Total assets	$	33,557	$	153,892	$	229	$	187,678
Liabilities:
Other long-term debt	$	27,153	$	123,577	$	—	$	150,730
Accrued interest and other liabilities	—		—		229		229
Total liabilities	27,153		123,577		229		150,959
Equity:
Beneficial Interest owned by third party	$	6,404	$	30,315	—		36,719
Total liabilities and equity	$	33,557	$	153,892	$	229	$	187,678

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 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 December 31, 2016, and 2015:

	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
2012-1 Automobile Trust	—		—		—
2012-2 Automobile Trust	—		—		—
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

	December 31, 2015
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2015-1 Automobile Trust	$	7,695	$	—	$	7,695
2012-1 Automobile Trust	94		—		94
2012-2 Automobile Trust	771		—		771
Trust Preferred Securities	13,919		317,106		—
Low Income Housing Tax Credit Partnerships	425,500		196,001		425,500
Other Investments	68,746		25,762		68,746
Total	$	516,725	$	538,869	$	502,806

AUTOMOBILE TRUST SECURITIZATIONS

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
2012-1 Automobile Trust	2012	1,300
2012-2 Automobile Trust	2012	1,000

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 accrued income and other assets of Huntington’s Consolidated Balance Sheets. The maximum exposure to loss is equal to the carrying value of the servicing asset. See Note 7 for more information.

During the 2016 first quarter, Huntington canceled the 2012-1 Automobile Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust. During the 2016 third quarter, Huntington canceled the 2012-2 Automobile Trust. As a result, any remaining assets at the time of the cancellation were no longer part of the trust.

TRUST-PREFERRED SECURITIES

Huntington has certain wholly-owned trusts whose assets, liabilities, equity, income, and expenses are not included within Huntington’s 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 Consolidated Balance Sheet as subordinated notes. The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Consolidated Financial Statements. A list of trust-preferred securities outstanding at December 31, 2016 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.59	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.59		(3)	32,093		3,093
Sky Financial Capital Trust III	2.40		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.25		(4)	74,320		2,320
Camco Financial Trust	3.43		(5)	4,244		155
Total				$	252,552	$	13,919

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

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR + 0.70.

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR + 62.5.

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR + 1.40.

(5) Variable effective rate (including impact of purchase accounting accretion) at December 31, 2016, 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 a majority of its 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 losses related to these investments are included in noninterest income in the Consolidated Statements of Income.

The following table presents the balances of Huntington’s affordable housing tax credit investments and related unfunded commitments at December 31, 2016 and 2015.

(dollar amounts in thousands)	December 31, 2016			December 31, 2015
Affordable housing tax credit investments	$	877,237		$	674,157
Less: amortization	(300,357		)	(248,657		)
Net affordable housing tax credit investments	$	576,880		$	425,500
Unfunded commitments	$	292,721		$	196,001

The following table presents other information relating to Huntington’s affordable housing tax credit investments for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Tax credits and other tax benefits recognized	$	79,696	$	59,614	$	51,317
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	52,713		42,951		39,021
Equity method
Tax credit investment losses included in noninterest income	637		355		434

There were no sales of LIHTC investments in 2016, 2015 or 2014. Huntington recognized immaterial impairment losses for the years ended December 31, 2016, 2015 and 2014. 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

12 Months Ended

Dec. 31, 2016

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 Consolidated Financial Statements. The contract amounts of these financial agreements at December 31, 2016, and December 31, 2015 were as follows:

	At December 31,
(dollar amounts in thousands)	2016		2015
Contract amount represents credit risk
Commitments to extend credit:
Commercial	$	15,190,056	$	11,448,927
Consumer	12,235,943		8,574,093
Commercial real estate	1,697,671		813,271
Standby letters of credit	637,182		511,706
Commercial letters-of-credit	4,610		56,119

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 $8 million and $7 million at December 31, 2016 and December 31, 2015, 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 December 31, 2016 and 2015, Huntington had commitments to sell residential real estate loans of $819 million and $659 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 $65 million at December 31, 2016. 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.

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 Bank’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 Merger Shareholder Litigation. Huntington is a defendant in five lawsuits filed in February and March of 2016 in state and federal courts in Ohio relating to the FirstMerit merger. The plaintiffs in each case are FirstMerit shareholders and have filed class action and derivative claims seeking to enjoin the merger. The parties in the federal court cases have entered into a tentative settlement. The defendants made agreed supplemental disclosures in advance of the shareholder vote in exchange for which plaintiffs agreed to withdraw their preliminary injunction motion and agreed to a release of all claims in the federal and state actions. The parties jointly moved for approval of the settlement by the federal court, which was granted on February 1, 2017. The plaintiffs in the state court cases did not join in the settlement, but their claims will be released in the federal court settlement.

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.

Commitments Under Operating Lease Obligations

At December 31, 2016, Huntington and its subsidiaries were obligated under noncancelable leases for land, buildings, and equipment. Many of these leases contain renewal options and certain leases provide options to purchase the leased property during or at the expiration of the lease period at specified prices. Some leases contain escalation clauses calling for rentals to be adjusted for increased real estate taxes and other operating expenses or proportionately adjusted for increases in the consumer or other price indices.

The future minimum rental payments required under operating leases that have initial or remaining noncancelable lease terms in excess of one year as of December 31, 2016, were as follows: $59 million in 2017, $54 million in 2018, $48 million in 2019, $46 million in 2020, $30 million in 2021, and $152 million thereafter. At December 31, 2016, total minimum lease payments have not been reduced by minimum sublease rentals of $8 million due in the future under noncancelable subleases. At December 31, 2016, the future minimum sublease rental payments that Huntington expects to receive were as follows: $3 million in 2017, $2 million in 2018, $2 million in 2019, $1 million in 2020, $0 million in 2021, and $0 million thereafter. The rental expense for all operating leases was $65 million, $58 million, and $57 million for 2016, 2015, and 2014, respectively. Huntington had no material obligations under capital leases.

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OTHER REGULATORY MATTERS

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

OTHER REGULATORY MATTERS

OTHER REGULATORY MATTERS

Huntington and its bank subsidiary, The Huntington National Bank (the Bank), are subject to various regulatory capital requirements administered by banking regulators. These requirements involve qualitative judgments and quantitative measures of assets, liabilities, capital amounts, and certain off-balance sheet items as calculated under regulatory accounting practices. Failure to meet minimum capital requirements can initiate certain actions by regulators that, if undertaken, could have a material adverse effect on Huntington’s and the Bank’s financial statements.

Beginning in 2015, Huntington and the Bank became subject to the Basel III capital requirements including the standardized approach for calculating risk-weighted assets in accordance with subpart D of the final capital rule. The Basel III capital requirements emphasize CET1 capital, the most loss-absorbing form of capital, and implement strict eligibility criteria for regulatory capital instruments. CET1 capital primarily includes common shareholders’ equity less certain deductions for goodwill and other intangibles net of related taxes, and deferred tax assets that arise from tax loss and credit carryforwards. Tier 1 capital is primarily comprised of CET1 capital, perpetual preferred stock and certain qualifying capital instruments (TRUPS) that are subject to eventual phase-out from tier 1 capital in 2017. Tier 2 capital primarily includes qualifying subordinated debt and qualifying ALLL. We are also subject to CCAR and must submit annual capital plans to our banking regulators. We may pay dividends and repurchase stock up to the levels submitted in our 2016 CCAR capital plan submission to which the FRB did not object.

As of December 31, 2016, Huntington and the Bank met all capital adequacy requirements and had regulatory capital ratios in excess of the levels established for well-capitalized institutions. The period-end capital amounts and capital ratios of Huntington and the Bank are as follows, including the CET1 ratio on a Basel III basis. The implementation of the Basel III capital requirements is transitional and phases-in from January 1, 2015 through the end of 2018.

		Well-				December 31,
		capitalized		Minimum		2016				2015
		Capital		Capital		Basel III
(dollar amounts in thousands)		Ratios		Ratios		Ratio		Amount		Ratio		Amount
Common equity tier 1 risk-based capital	Consolidated	N.A.		4.50	%	9.56	%	$	7,485,816	9.79	%	$	5,721,028
	Bank	6.50	%	4.50		10.42		8,153,091		9.46		5,518,748
Tier 1 risk-based capital	Consolidated	6.00		6.00		10.92		8,547,154		10.53		6,154,000
	Bank	8.00		6.00		11.61		9,085,921		9.83		5,735,274
Total risk-based capital	Consolidated	10.00		8.00		13.05		10,215,627		12.64		7,386,936
	Bank	10.00		8.00		13.83		10,817,597		11.74		6,850,596
Tier 1 leverage capital	Consolidated	N.A.		4.00		8.70		8,547,154		8.79		6,154,000
	Bank	5.00		4.00		9.29		9,085,921		8.21		5,735,274

Huntington has the ability to provide additional capital to the Bank to maintain the Bank’s risk-based capital ratios at levels at which would be considered well-capitalized.

Huntington and its subsidiaries are also subject to various regulatory requirements that impose restrictions on cash, debt, and dividends. The Bank is required to maintain cash reserves based on the level of certain of its deposits. This reserve requirement may be met by holding cash in banking offices or on deposit at the Federal Reserve Bank. During 2016 and 2015, the average balances of these deposits were $0.3 billion and $0.5 billion, respectively.

Under current Federal Reserve regulations, the Bank is limited as to the amount and type of loans it may make to the parent company and nonbank subsidiaries. At December 31, 2016, the Bank could lend $1.1 billion to a single affiliate, subject to the qualifying collateral requirements defined in the regulations.

Dividends from the Bank are one of the major sources of funds for the Company. These funds aid the Company in the payment of dividends to shareholders, expenses, and other obligations. Payment of dividends and/or return of capital to the parent company is subject to various legal and regulatory limitations. During 2016, the Bank paid dividends and returned capital of $638.2 million to the holding company. Also, there are statutory and regulatory limitations on the ability of national banks to pay dividends or make other capital distributions.

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PARENT COMPANY FINANCIAL STATEMENTS

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

PARENT COMPANY FINANCIAL STATEMENTS

PARENT-ONLY FINANCIAL STATEMENTS

The parent-only financial statements, which include transactions with subsidiaries, are as follows:

Balance Sheets	December 31,
(dollar amounts in thousands)	2016		2015
Assets
Cash and due from banks	$	1,752,889	$	917,368
Due from The Huntington National Bank	730,004		406,253
Due from non-bank subsidiaries	45,193		48,151
Investment in The Huntington National Bank	10,668,303		5,966,783
Investment in non-bank subsidiaries	499,611		489,205
Accrued interest receivable and other assets	320,666		192,444
Total assets	$	14,016,666	$	8,020,204
Liabilities and shareholders’ equity
Long-term borrowings	$	3,144,615	$	1,040,981
Dividends payable, accrued expenses, and other liabilities	563,905		384,617
Total liabilities	3,708,520		1,425,598
Shareholders’ equity (1)	10,308,146		6,594,606
Total liabilities and shareholders’ equity	$	14,016,666	$	8,020,204

(1) See Consolidated Statements of Changes in Shareholders’ Equity.

Statements of Income	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Income
Dividends from
The Huntington National Bank	$	188,200		$	822,000		$	244,000
Non-bank subsidiaries	11,378			38,883			27,773
Interest from
The Huntington National Bank	13,892			5,954			3,906
Non-bank subsidiaries	2,221			2,317			2,613
Other	—			4,529			2,994
Total income	215,691			873,683			281,286
Expense
Personnel costs	11,960			4,770			53,359
Interest on borrowings	59,027			17,428			17,031
Other	122,869			92,735			52,662
Total expense	193,856			114,933			123,052
Income (loss) before income taxes and equity in undistributed net income of subsidiaries	21,835			758,750			158,234
Provision (benefit) for income taxes	(56,255		)	(109,867		)	(62,897		)
Income (loss) before equity in undistributed net income of subsidiaries	78,090			868,617			221,131
Increase (decrease) in undistributed net income (loss) of:
The Huntington National Bank	629,220			(160,567		)	414,049
Non-bank subsidiaries	4,511			(15,093		)	(2,788		)
Net income	$	711,821		$	692,957		$	632,392
Other comprehensive income (loss) (1)	(174,858		)	(3,866		)	(8,283		)
Comprehensive income	$	536,963		$	689,091		$	624,109

(1) See Consolidated Statements of Comprehensive Income for other comprehensive income (loss) detail.

Statements of Cash Flows	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Operating activities
Net income	$	711,821		$	692,957		$	632,392
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries	(633,730		)	175,660			(411,261		)
Depreciation and amortization	(1,390		)	609			548
Loss on sales of securities available-for-sale	—			540			—
Other, net	(23,600		)	(44,197		)	26,685
Net cash (used for) provided by operating activities	53,101			825,569			248,364
Investing activities
Repayments from subsidiaries	464,284			494,905			9,250
Advances to subsidiaries	(1,758,745		)	(612,610		)	(32,350		)
Proceeds from sale of securities available-for-sale	(1,589		)	449			—
Cash paid for acquisitions, net of cash received	(133,218		)	—			(13,452		)
Proceeds from business divestitures	—			9,029			—
Net cash (used for) provided by investing activities	(1,429,268		)	(108,227		)	(36,552		)
Financing activities
Proceeds from issuance of long-term borrowings	1,989,938			—			—
Payment of borrowings	(64,586		)	—			—
Dividends paid on stock	(299,588		)	(224,390		)	(198,789		)
Net proceeds from issuance of common stock	—			—			2,597
Net proceeds from issuance of preferred stock	584,936			—			—
Repurchases of common stock	—			(251,844		)	(334,429		)
Other, net	988			13,492			15,512
Net cash provided by (used for) financing activities	2,211,688			(462,742		)	(515,109		)
Increase (decrease) in cash and due from banks	835,521			254,600			(303,297		)
Cash and due from banks at beginning of year	917,368			662,768			966,065
Cash and due from banks at end of year	$	1,752,889		$	917,368		$	662,768
Supplemental disclosure:
Interest paid	$	36,068		$	17,384		$	21,321

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SEGMENT REPORTING

12 Months Ended

Dec. 31, 2016

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 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).

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, investments, 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 Private Client Group segments, as well as through commissioned loan originators. Home lending earns interest portfolio loans and 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 financial information reconciled to Huntington’s December 31, 2016, December 31, 2015, and December 31, 2014, reported results by business segment:

Income Statements (dollar amounts in thousands)	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
2016
Net interest income	$	1,272,713	$	512,995	$	468,969		$	177,431		$	58,354		$	(121,144	)	$	2,369,318
Provision (benefit) for credit losses	71,945		98,816		26,922			(3,467		)	(3,412		)	(2		)	190,802
Noninterest income	558,811		275,258		40,582			120,687			90,358			64,035			1,149,731
Noninterest expense	1,208,585		385,783		170,276			196,194			124,683			322,964			2,408,485
Provision (benefit) for income taxes	192,848		106,279		109,324			36,887			9,604			(247,001		)	207,941
Net income (loss)	$	358,146	$	197,375	$	203,029		$	68,504		$	17,837		$	(133,070	)	$	711,821
2015
Net interest income	$	1,027,950	$	379,409	$	381,231		$	139,188		$	50,404		$	(27,445	)	$	1,950,737
Provision (benefit) for credit losses	42,777		49,534		4,890			87			2,671			(5		)	99,954
Noninterest income	478,142		258,778		29,254			114,814			87,021			70,721			1,038,730
Noninterest expense	1,099,779		284,026		152,010			195,667			144,848			99,578			1,975,908
Provision (benefit) for income taxes	127,238		106,619		88,755			20,387			(3,533		)	(118,818		)	220,648
Net income (loss)	$	236,298	$	198,008	$	164,830		$	37,861		$	(6,561	)	$	62,521		$	692,957
2014
Net interest income	$	912,992	$	306,434	$	379,363		$	101,839		$	58,015		$	78,498		$	1,837,141
Provision (benefit) for credit losses	75,529		31,521		(52,843		)	4,893			21,889			—			80,989
Noninterest income	409,746		209,238		26,628			173,550			69,899			90,118			979,179
Noninterest expense	982,288		249,300		156,715			236,634			136,374			121,035			1,882,346
Provision (benefit) for income taxes	92,722		82,198		105,742			11,852			(10,622		)	(61,299		)	220,593
Net income (loss)	$	172,199	$	152,653	$	196,377		$	22,010		$	(19,727	)	$	108,880		$	632,392

	Assets at December 31,				Deposits at December 31,
(dollar amounts in thousands)	2016		2015		2016		2015
Consumer & Business Banking	$	21,796,887	$	15,759,561	$	44,860,515	$	30,964,241
Commercial Banking	23,918,429		17,022,387		15,616,241		11,498,883
CREVF	23,580,331		17,856,358		1,886,626		1,649,301
RBHPCG	5,553,012		4,277,970		8,521,401		7,530,241
Home Lending	3,502,304		3,080,690		639,418		361,881
Treasury / Other	21,363,134		13,021,335		4,083,516		3,290,432
Total	$	99,714,097	$	71,018,301	$	75,607,717	$	55,294,979

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QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

The following is a summary of the quarterly results of operations, for the years ended December 31, 2016 and 2015:

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2016		2016		2016		2016
Interest income	$	814,858	$	694,346	$	565,658	$	557,251
Interest expense	79,877		68,956		59,777		54,185
Net interest income	734,981		625,390		505,881		503,066
Provision for credit losses	74,906		63,805		24,509		27,582
Noninterest income	334,337		302,415		271,112		241,867
Noninterest expense	681,497		712,247		523,661		491,080
Income before income taxes	312,915		151,753		228,823		226,271
Provision for income taxes	73,952		24,749		54,283		54,957
Net income	238,963		127,004		174,540		171,314
Dividends on preferred shares	18,865		18,537		19,874		7,998
Net income applicable to common shares	$	220,098	$	108,467	$	154,666	$	163,316
Net income per common share — Basic	$	0.20	$	0.12	$	0.19	$	0.21
Net income per common share — Diluted	0.20		0.11		0.19		0.20

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2015		2015		2015		2015
Interest income	$	544,153	$	538,477	$	529,795	$	502,096
Interest expense	47,242		43,022		39,109		34,411
Net interest income	496,911		495,455		490,686		467,685
Provision for credit losses	36,468		22,476		20,419		20,591
Noninterest income	272,215		253,119		281,773		231,623
Noninterest expense	498,766		526,508		491,777		458,857
Income before income taxes	233,892		199,590		260,263		219,860
Provision for income taxes	55,583		47,002		64,057		54,006
Net income	178,309		152,588		196,206		165,854
Dividends on preferred shares	7,972		7,968		7,968		7,965
Net income applicable to common shares	$	170,337	$	144,620	$	188,238	$	157,889
Net income per common share — Basic	$	0.21	$	0.18	$	0.23	$	0.19
Net income per common share — Diluted	0.21		0.18		0.23		0.19

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SUBSEQUENT EVENTS (Notes)

12 Months Ended

Dec. 31, 2016

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

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SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation — The Consolidated Financial Statements include the accounts of Huntington and its majority-owned subsidiaries and are presented in accordance with GAAP. All intercompany transactions and balances have been eliminated in consolidation. Companies in which Huntington holds more than a 50% voting equity interest, or a controlling financial interest, or are a VIE in which Huntington has the power to direct the activities of an entity that most significantly impact the entity’s economic performance and has an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are consolidated. VIEs are legal entities with insubstantial equity, whose equity investors lack the ability to make decisions about the entity’s activities, or whose equity investors do not have the obligation to absorb losses or the right to receive the residual returns of the entity if they occur. VIEs in which Huntington does not hold the power to direct the activities of the entity that most significantly impact the entity’s economic performance or does not have an obligation to absorb losses or the right to receive benefits from the VIE which could potentially be significant to the VIE are not consolidated. For consolidated entities where Huntington holds less than a 100% interest, Huntington recognizes non-controlling interest (included in shareholders’ equity) for the equity held by others and non-controlling profit or loss (included in noninterest expense) for the portion of the entity’s earnings attributable to other’s interests. Investments in companies that are not consolidated are accounted for using the equity method when Huntington has the ability to exert significant influence. Those investments in nonmarketable securities for which Huntington does not have the ability to exert significant influence are generally accounted for using the cost method. Investments in private investment partnerships that are accounted for under the equity method or the cost method are included in Accrued income and other assets and Huntington’s proportional interest in the equity investments’ earnings are included in other noninterest income. Investment interests accounted for under the cost and equity methods are periodically evaluated for impairment.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that significantly affect amounts reported in the Consolidated Financial Statements. Huntington utilizes processes that involve the use of significant estimates and the judgments of management in determining the amount of its allowance for credit losses, income taxes deferred tax assets, and contingent liabilities, as well as fair value measurements of investment securities, derivatives, goodwill, other intangible assets, pension assets and liabilities, short-term borrowings, mortgage servicing rights, and loans held for sale. As with any estimate, actual results could differ from those estimates.

For statements 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.

Certain prior period amounts have been reclassified to conform to the current year’s presentation.

Resale and Repurchase Agreements

Resale and Repurchase Agreements — Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions and are recorded at the amounts at which the securities were acquired or sold plus accrued interest. The fair value of collateral either received from or provided to a third-party is continually monitored and additional collateral is obtained or requested to be returned to Huntington in accordance with the agreement.

Securities

Securities — Securities purchased with the intention of recognizing short-term profits or which are actively bought and sold are classified as trading account securities and reported at fair value. The unrealized gains or losses on trading account securities are recorded in other noninterest income, except for gains and losses on trading account securities used to economically hedge the fair value of MSRs, which are included in mortgage banking income. Debt securities purchased in which Huntington has the positive intent and ability to hold to their maturity are classified as held-to-maturity securities. Held-to-maturity securities are recorded at amortized cost. All other debt and equity securities are classified as available-for-sale and other securities. Unrealized gains or losses on available-for-sale and other securities are reported as a separate component of accumulated OCI in the Consolidated Statements of Changes in Shareholders’ Equity. Credit-related declines in the value of debt securities that are considered OTTI are recorded in noninterest income.

Huntington evaluates its investment securities portfolio on a quarterly basis for indicators of OTTI. Huntington assesses whether OTTI has occurred when the fair value of a debt security is less than the amortized cost basis at the balance sheet date. Management reviews the amount of unrealized loss, the length of time the security has been in an unrealized loss position, the credit rating history, market trends of similar security classes, time remaining to maturity, and the source of both interest and principal payments to identify securities which could potentially be impaired. For those debt securities that Huntington intends to sell or is more likely than not required to sell, before the recovery of their amortized cost bases, the difference between fair value and amortized cost is considered to be OTTI and is recognized in noninterest income. For those debt securities that Huntington does not intend to sell or is not more likely than not required to sell, prior to expected recovery of amortized cost bases, the credit portion of the OTTI is recognized in noninterest income while the noncredit portion is recognized on OCI. In determining the credit portion, Huntington uses a discounted cash flow analysis, which includes evaluating the timing and amount of the expected cash flows. Non-credit-related OTTI results from other factors, including increased liquidity spreads and higher interest rates. Presentation of OTTI is made in the Consolidated Statements of Income on a gross basis with a reduction for the amount of OTTI recognized in OCI.

Securities transactions are recognized on the trade date (the date the order to buy or sell is executed). The carrying value plus any related accumulated OCI balance of sold securities is used to compute realized gains and losses. Interest and dividends on securities, including amortization of premiums and accretion of discounts using the effective interest method over the period to maturity, are included in interest income.

Nonmarketable equity securities include stock acquired for regulatory purposes, such as Federal Home Loan Bank stock and Federal Reserve Bank stock. These securities are accounted for at cost, evaluated for impairment, and included in available-for-sale and other securities.

Loans and Leases

Loans and Leases — Loans and direct financing leases for which Huntington has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are classified in the Consolidated Balance Sheets as loans and leases. Except for loans for which the fair value option has been elected, loans and leases are carried at the principal amount outstanding, net of unamortized deferred loan origination fees and costs and net of unearned income. Direct financing leases are reported at the aggregate of lease payments receivable and estimated residual values, net of unearned and deferred income. Interest income is accrued as earned using the interest method based on unpaid principal balances. Huntington defers the fees it receives from the origination of loans and leases, as well as the direct costs of those activities. Huntington also acquires loans at a premium and at a discount to their contractual values. Huntington amortizes loan discounts, premiums, and net loan origination fees and costs on a level-yield basis over the contractual lives of the related loans, which would not include purchased credit impaired loans.

Troubled debt restructurings are loans for which the original contractual terms have been modified to provide a concession 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. Modifications resulting in troubled debt restructurings may include changes to one or more terms of the loan, including but not limited to, a change in interest rate, an extension of the repayment period, a reduction in payment amount, and partial forgiveness or deferment of principal or accrued interest.

Residual values on leased equipment are evaluated quarterly for impairment. Impairment of the residual values of direct financing leases determined to be other than temporary is recognized by writing the leases down to fair value with a charge to other noninterest expense. Leased equipment residual value impairment will arise if the expected fair value is less than the carrying amount, net of estimated amounts reimbursable by the lessee. Future declines in the expected residual value of the leased equipment would result in expected losses of the leased equipment.

For leased equipment, the residual component of a direct financing lease represents the estimated fair value of the leased equipment at the end of the lease term. Huntington uses industry data, historical experience, and independent appraisals to establish these residual value estimates. Additional information regarding product life cycle, product upgrades, as well as insight into competing products are obtained through relationships with industry contacts and are factored into residual value estimates where applicable.

Loans Held for Sale

Loans Held for Sale — Loans in which Huntington does not have the intent and ability to hold for the foreseeable future are classified as loans held for sale. Loans held for sale (excluding loans originated or acquired with the intent to sell, which are carried at fair value) are carried at the lower of cost or fair value less cost to sell. The fair value option is generally elected for mortgage loans held for sale to facilitate hedging of the loans. The fair value of such loans is estimated based on the inputs that include prices of mortgage backed securities adjusted for other variables such as, interest rates, expected credit defaults and market discount rates. The adjusted value reflects the price we expect to receive from the sale of such loans.

Allowance for Credit Losses

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 $1.0 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, and residential mortgage loans, 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 recorded in Accrued expenses and other liabilities in the Consolidated Balance Sheets.

Nonaccrual and Past Due Loans

Nonaccrual 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.

Any loan in any portfolio may be placed on nonaccrual status prior to the policies described below when collection of principal or interest is in doubt. When a borrower with debt is discharged in a Chapter 7 bankruptcy and not reaffirmed by the borrower, the loan is determined to be collateral dependent and placed on nonaccrual status, unless there is a co-borrower.

All classes within the C&I and CRE portfolios (except for purchased credit-impaired loans) are placed on nonaccrual status at 90-days past due. First-lien home equity loans 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 generally charged-off when the loan is 120-days past due. Residential mortgage loans are placed on nonaccrual status at 150-days past due, with the exception of residential mortgages guaranteed by government agencies which continue to accrue interest at the rate guaranteed by the government agency. We are reimbursed from the government agency for reasonable expenses incurred in servicing loans.

For all classes within all loan portfolios, when a loan is placed on nonaccrual status, any accrued interest income is reversed with current year accruals charged to interest income, and prior year amounts charged-off as a credit loss.

For all classes within all loan portfolios, cash receipts on NALs are applied against principal until the loan or lease has been collected in full, including charged-off portion, after which time any additional cash receipts are recognized as interest income. However, for secured non-reaffirmed debt in a Chapter 7 bankruptcy, payments are applied to principal and interest when the borrower has demonstrated a capacity to continue payment of the debt and collection of the debt is reasonably assured. For unsecured non-reaffirmed debt in a Chapter 7 bankruptcy where the carrying value has been fully charged-off, payments are recorded as loan recoveries.

Regarding all classes within the C&I and CRE portfolios, the determination of a borrower’s ability to make the required principal and interest payments is based on an examination of the borrower’s current financial statements, industry, management capabilities, and other qualitative measures. For all classes within the consumer loan portfolio, the determination of a borrower’s ability to make the required principal and interest payments is based on multiple factors, including number of days past due and, in some instances, an evaluation of the borrower’s financial condition. When, in management’s judgment, the borrower’s ability to make required principal and interest payments resumes and collectability is no longer in doubt, supported by sustained repayment history, the loan is returned to accrual status. For these loans that have been returned to accrual status, cash receipts are applied according to the contractual terms of the loan.

Charge-off of Uncollectible Loans

Charge-off of Uncollectible Loans — 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 charged-off or written down to net realizable value at 90-days past due. Automobile 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.

Impaired Loans

Impaired Loans — For all classes within the C&I and CRE portfolios, all loans with an obligor balance of $1.0 million or greater are evaluated on a quarterly basis for impairment. Except for TDRs, consumer loans within any class are generally not individually evaluated on a regular basis for impairment. All TDRs, regardless of the outstanding balance amount, are also considered to be impaired. Loans acquired with evidence of deterioration in 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.

Purchased Credit-Impaired Loans — Purchased loans with evidence of deterioration in credit quality since origination for which it is probable at acquisition that we will be unable to collect all contractually required payments are considered to be credit impaired. Purchased credit-impaired loans are initially recorded at fair value, which is estimated by discounting the cash flows expected to be collected at the acquisition date. Because the estimate of expected cash flows reflects an estimate of future credit losses expected to be incurred over the life of the loans, an allowance for credit losses is not recorded at the acquisition date. The excess of cash flows expected at acquisition over the estimated fair value, referred to as the accretable yield, is recognized in interest income over the remaining life of the loan, or pool of loans, on a level-yield basis. The difference between the contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable difference. A subsequent decrease in the estimate of cash flows expected to be received on purchased credit-impaired loans generally results in the recognition of an allowance for credit losses. Subsequent increases in cash flows result in reversal of any nonaccretable difference (or allowance for loan and lease losses to the extent any has been recorded) with a positive impact on interest income subsequently recognized. The measurement of cash flows involves assumptions and judgments for interest rates, prepayments, default rates, loss severity, and collateral values. All of these factors are inherently subjective and significant changes in the cash flow estimates over the life of the loan can result.

Transfers of Financial Assets and Securitizations

Transfers of Financial Assets and Securitizations — Transfers of financial assets in which we have surrendered control over the transferred assets are accounted for as sales. In assessing whether control has been surrendered, we consider whether the transferee would be a consolidated affiliate, the existence and extent of any continuing involvement in the transferred financial assets, and the impact of all arrangements or agreements made contemporaneously with, or in contemplation of, the transfer, even if they were not entered into at the time of transfer. Control is generally considered to have been surrendered when (i) the transferred assets have been legally isolated from us or any of our consolidated affiliates, even in bankruptcy or other receivership, (ii) the transferee (or, if the transferee is an entity whose sole purpose is to engage in securitization or asset-backed financing that is constrained from pledging or exchanging the assets it receives, each third-party holder of its beneficial interests) has the right to pledge or exchange the assets (or beneficial interests) it received without any constraints that provide more than a trivial benefit to us, and (iii) neither we nor our consolidated affiliates and agents have (a) both the right and obligation under any agreement to repurchase or redeem the transferred assets before their maturity, (b) the unilateral ability to cause the holder to return specific financial assets that also provides us with a more-than-trivial benefit (other than through a cleanup call) or (c) an agreement that permits the transferee to require us to repurchase the transferred assets at a price so favorable that it is probable that it will require us to repurchase them.

If the sale criteria are met, the transferred financial assets are removed from our balance sheet and a gain or loss on sale is recognized. If the sale criteria are not met, the transfer is recorded as a secured borrowing in which the assets remain on our balance sheet and the proceeds from the transaction are recognized as a liability. For the majority of financial asset transfers, it is clear whether or not we have surrendered control. For other transfers, such as in connection with complex transactions or where we have continuing involvement, we generally obtain a legal opinion as to whether the transfer results in a true sale by law.

From time to time we securitize certain automobile receivables. Gains and losses on the loans and leases sold and servicing rights associated with loan and lease sales are determined when the related loans or leases are sold to either a securitization trust or third-party. For loan or lease sales with servicing retained, a servicing asset is recorded at fair value for the right to service the loans sold.

Derivative Financial Instruments

Derivative Financial Instruments — A variety of derivative financial instruments, principally interest rate swaps, caps, floors, and collars, are used in asset and liability management activities to protect against the risk of adverse price or interest rate movements. These instruments provide flexibility in adjusting Huntington’s sensitivity to changes in interest rates without exposure to loss of principal and higher funding requirements.

Huntington also uses derivatives, principally loan sale commitments, in hedging its mortgage loan interest rate lock commitments and its mortgage loans held for sale. Mortgage loan sale commitments and the related interest rate lock commitments are carried at fair value on the Consolidated Balance Sheets with changes in fair value reflected in mortgage banking income. Huntington also uses certain derivative financial instruments to offset changes in value of its MSRs. These derivatives consist primarily of forward interest rate agreements and forward mortgage contracts. The derivative instruments used are not designated as qualifying hedges. Accordingly, such derivatives are recorded at fair value with changes in fair value reflected in mortgage banking income.

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. On the date a derivative contract is entered into, we designate it as either:

• a qualifying hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge);

• a qualifying hedge of the variability of cash flows to be received or paid related to a recognized asset liability or forecasted transaction (cash flow hedge); or

• a trading instrument or a non-qualifying (economic) hedge.

Changes in the fair value of a derivative that has been designated and qualifies as a fair value hedge, along with the changes in the fair value of the hedged asset or liability that is attributable to the hedged risk, are recorded in current period earnings. Changes in the fair value of a derivative that has been designated and qualifies as a cash flow hedge, to the extent effective as a hedge, are recorded in accumulated other comprehensive income, net of income taxes, and reclassified into earnings in the period during which the hedged item affects earnings. Ineffectiveness in the hedging relationship is reflected in current period earnings. Changes in the fair value of derivatives held for trading purposes or which do not qualify for hedge accounting are reported in current period earnings.

For those derivatives to which hedge accounting is applied, Huntington formally documents the hedging relationship and the risk management objective and strategy for undertaking the hedge. This documentation identifies the hedging instrument, the hedged item or transaction, the nature of the risk being hedged, and, unless the hedge meets all of the criteria to assume there is no ineffectiveness, the method that will be used to assess the effectiveness of the hedging instrument and how ineffectiveness will be measured. The methods utilized to assess retrospective hedge effectiveness, as well as the frequency of testing, vary based on the type of item being hedged and the designated hedge period. For specifically designated fair value hedges of certain fixed-rate debt, Huntington utilizes the short-cut method when certain criteria are met. For other fair value hedges of fixed-rate debt, including certificates of deposit, Huntington utilizes the regression method to evaluate hedge effectiveness on a quarterly basis. For fair value hedges of portfolio loans, the regression method is used to evaluate effectiveness on a daily basis. For cash flow hedges, the regression method is applied on a quarterly basis.

Hedge accounting is discontinued prospectively when:

• the derivative is no longer effective or expected to be effective in offsetting changes in the fair value or cash flows of a hedged item (including firm commitments or forecasted transactions);

• the derivative expires or is sold, terminated, or exercised;

• it is unlikely that a forecasted transaction will occur;

• the hedged firm commitment no longer meets the definition of a firm commitment; or

• the designation of the derivative as a hedging instrument is removed.

When hedge accounting is discontinued because it is determined that the derivative no longer qualifies as an effective fair value or cash flow hedge, the derivative will continue to be carried on the balance sheet at fair value.

In the case of a discontinued fair value hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the hedged item will no longer be adjusted for changes in fair value. The basis adjustment that had previously been recorded to the hedged item during the period from the hedge designation date to the hedge discontinuation date is recognized as an adjustment to the yield of the hedged item over the remaining life of the hedged item.

In the case of a discontinued cash flow hedge of a recognized asset or liability, as long as the hedged item continues to exist on the balance sheet, the effective portion of the changes in fair value of the hedging derivative will no longer be recorded to other comprehensive income. The balance applicable to the discontinued hedging relationship will be recognized in earnings over the remaining life of the hedged item as an adjustment to yield. If the discontinued hedged item was a forecasted transaction that is not expected to occur, any amounts recorded on the balance sheet related to the hedged item, including any amounts recorded in accumulated other comprehensive income, are immediately reclassified to current period earnings.

In the case of either a fair value hedge or a cash flow hedge, if the previously hedged item is sold or extinguished, the basis adjustment to the underlying asset or liability or any remaining unamortized other comprehensive income balance will be reclassified to current period earnings.

In all other situations in which hedge accounting is discontinued, the derivative will be carried at fair value on the consolidated balance sheets, with changes in its fair value recognized in current period earnings unless re-designated as a qualifying hedge.

Like other financial instruments, derivatives contain an element of credit risk, which is the possibility that Huntington will incur a loss because the counterparty fails to meet its contractual obligations. Notional values of interest rate swaps and other off-balance sheet financial instruments significantly exceed the credit risk associated with these instruments and represent contractual balances on which calculations of amounts to be exchanged are based. Credit exposure is limited to the sum of the aggregate fair value of positions that have become favorable to Huntington, including any accrued interest receivable due from counterparties. Potential credit losses are mitigated through careful evaluation of counterparty credit standing, selection of counterparties from a limited group of high quality institutions, collateral agreements, and other contract provisions. Huntington considers the value of collateral held and collateral provided in determining the net carrying value of derivatives.

Huntington offsets the fair value amounts recognized for derivative instruments and the fair value for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instrument(s) recognized at fair value executed with the same counterparty under a master netting arrangement.

Repossessed Collateral

Repossessed Collateral — Repossessed collateral, also referred to as OREO, is comprised principally of commercial and residential real estate properties obtained in partial or total satisfaction of loan obligations, and is carried at fair value. Collateral obtained in satisfaction of a loan is recorded at the estimated fair value less anticipated selling costs based upon the property’s appraised value at the date of foreclosure, with any difference between the fair value of the property and the carrying value of the loan recorded as a charge-off. If the fair value is higher than the carrying amount of the loan the excess is recognized first as a recovery and then as noninterest income. Subsequent declines in value are reported as adjustments to the carrying amount and are recorded in noninterest expense. Gains or losses resulting from the sale of collateral are recognized in noninterest expense at the date of sale.

Collateral

Collateral — We pledge assets as collateral as required for various transactions including security repurchase agreements, public deposits, loan notes, derivative financial instruments, short-term borrowings and long-term borrowings. Assets that have been pledged as collateral, including those that can be sold or repledged by the secured party, continue to be reported on our Consolidated Balance Sheets.

We also accept collateral, primarily as part of various transactions including derivative and security resale agreements. Collateral accepted by us, including collateral that we can sell or repledge, is excluded from our Consolidated Balance Sheets.

The market value of collateral we have accepted or pledged is regularly monitored and additional collateral is obtained or provided as necessary to ensure appropriate collateral coverage in these transactions.

Premises and Equipment

Premises and Equipment — Premises and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed principally by the straight-line method over the estimated useful lives of the related assets. Buildings and building improvements are depreciated over an average of 30 to 40 years and 10 to 30 years, respectively. Land improvements and furniture and fixtures are depreciated over an average of 5 to 20 years, while equipment is depreciated over a range of 3 to 10 years. Leasehold improvements are amortized over the lesser of the asset’s useful life or the lease term, including any renewal periods for which renewal is reasonably assured. Maintenance and repairs are charged to expense as incurred, while improvements that extend the useful life of an asset are capitalized and depreciated over the remaining useful life. Premises and equipment is evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Mortgage Servicing Rights

Mortgage Servicing Rights — Huntington recognizes the rights to service mortgage loans as separate assets, which are included in Servicing Rights in the Consolidated Balance Sheets when purchased, or when servicing is contractually separated from the underlying mortgage loans by sale or securitization of the loans with servicing rights retained.

For loan sales with servicing retained, a servicing asset is recorded on the day of the sale at fair value for the right to service the loans sold. To determine the fair value of a MSR, Huntington uses an option adjusted spread cash flow analysis incorporating market implied forward interest rates to estimate the future direction of mortgage and market interest rates. The forward rates utilized are derived from the current yield curve for U.S. dollar interest rate swaps and are consistent with pricing of capital markets instruments. The current and projected mortgage interest rate influences the prepayment rate and, therefore, the timing and magnitude of the cash flows associated with the MSR. Servicing revenues on mortgage loans are included in mortgage banking income.

At the time of initial capitalization, MSRs may be grouped into servicing classes based on the availability of market inputs used in determining fair value and the method used for managing the risks of the servicing assets. MSR assets are recorded using the fair value method or the amortization method. The election of the fair value or amortization method is made at the time each servicing class is established. All newly created MSRs since 2009 were recorded using the amortization method. Any change in the fair value of MSRs carried under the fair value method, as well as amortization and impairment of MSRs under the amortization method, during the period is recorded in mortgage banking income, which is reflected in the Consolidated Statements of Income. Huntington economically hedges the value of certain MSRs using derivative instruments and trading securities. Changes in fair value of these derivatives and trading securities are reported as a component of mortgage banking income.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets — Under the acquisition method of accounting, the net assets of entities acquired by

Huntington are recorded at their estimated fair value at the date of acquisition. The excess cost of the acquisition over the fair value of net assets acquired is recorded as goodwill. Other intangible assets with finite useful lives are amortized either on an accelerated or straight-line basis over their estimated useful lives. Goodwill is evaluated for impairment on an annual basis at October 1^st of each year or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Indefinite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Pension and Other Postretirement Benefits

Pension and Other Postretirement Benefits — We recognize the funded status of the postretirement benefit plans on the Consolidated Balance Sheets. Net postretirement benefit cost charged to current earnings related to these plans is based on various actuarial assumptions regarding expected future experience.

Certain employees are participants in various defined contribution and other non-qualified supplemental retirement plans. Our contributions to defined contribution plans are charged to current earnings.

In addition, we maintain a 401(k) plan covering substantially all employees. Employer contributions to the plan, which are charged to current earnings, are based on employee contributions.

Share-Based Compensation

Share-Based Compensation — We use the fair value based method of accounting for awards of HBAN stock granted to employees under various stock option and restricted share plans. Stock compensation costs are recognized prospectively for all new awards granted under these plans. Compensation expense relating to share options is calculated using a methodology that is based on the underlying assumptions of the Black-Scholes option pricing model and is charged to expense over the requisite service period (e.g. vesting period). Compensation expense relating to restricted stock awards is based upon the fair value of the awards on the date of grant and is charged to earnings over the requisite service period (e.g., vesting period) of the award.

Stock Repurchases

Stock Repurchases — Acquisitions of Huntington stock are recorded at cost. The re-issuance of shares is recorded at weighted-average cost.

Income Taxes

Income Taxes — Income taxes are accounted for under the asset and liability method. Accordingly, deferred tax assets and liabilities are recognized for the future book and tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are determined using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income at the time of enactment of such change in tax rates. Any interest or penalties due for payment of income taxes are included in the provision for income taxes. To the extent that we do not consider it more likely than not that a deferred tax asset will be recovered, a valuation allowance is recorded. All positive and negative evidence is reviewed when determining how much of a valuation allowance is recognized on a quarterly basis. In determining the requirements for a valuation allowance, sources of possible taxable income are evaluated including future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences and carryforwards, taxable income in appropriate carryback years, and tax-planning strategies. Huntington applies a more likely than not recognition threshold for all tax uncertainties.

Bank Owned Life Insurance

Bank Owned Life Insurance — Huntington’s bank owned life insurance policies are recorded at their cash surrender value. Huntington recognizes tax-exempt income from the periodic increases in the cash surrender value of these policies and from death benefits. A portion of the cash surrender value is supported by holdings in separate accounts. Book value protection for the separate accounts is provided by the insurance carriers and a highly rated major bank.

Fair Value Measurements

Fair Value Measurements — The Company records or discloses certain of its assets and liabilities at fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Fair value measurements are classified within one of three levels in a valuation hierarchy based upon the observability of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows:

Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Segment Results

Segment Results — Accounting policies for the business segments are the same as those used in the preparation of the Consolidated Financial Statements with respect to activities specifically attributable to each business segment. However, the preparation of business segment results requires management to establish methodologies to allocate funding costs and benefits, expenses, and other financial elements to each business segment, which is described in Note 24.

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 Consolidated Financial Statements.

Consolidated VIEs

Consolidated VIEs

Consolidated VIEs at December 31, 2016, 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.

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ACQUISITION OF FIRSTMERIT CORPORATION (Tables)

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition

The following table reflects consideration paid for FirstMerit's net assets and the amounts of acquired identifiable assets and liabilities assumed as of the acquisition date:

	FirstMerit
(dollar amounts in thousands)	UPB		Fair Value
Assets acquired:
Cash and due from banks			$	703,661
Interest-bearing deposits in banks			32,496
Loans held for sale			150,576
Available for sale and other securities			7,369,967
Loans and leases:
Commercial:
Commercial and industrial	$	7,410,503	7,252,692
Commercial real estate	1,898,875		1,844,150
Total commercial	9,309,378		9,096,842
Consumer:
Automobile	1,610,007		1,609,145
Home equity	1,579,832		1,537,791
Residential mortgage	1,098,588		1,092,050
RV and marine finance	1,823,312		1,816,575
Other consumer	324,350		323,512
Total consumer	6,436,089		6,379,073
Total loans and leases	$	15,745,467	15,475,915
Bank owned life insurance			633,612
Premises and equipment			228,635
Goodwill			1,320,818
Core deposit intangible			309,750
Other intangible assets			94,571
Servicing rights			15,317
Accrued income and other assets			506,578
Total assets acquired			26,841,896
Liabilities assumed:
Deposits			21,157,172
Short-term borrowings			1,163,851
Long-term debt			519,971
Accrued expenses and other liabilities			292,930
Total liabilities assumed			23,133,924
Total consideration paid			$	3,707,972
Consideration:
Cash paid			$	836,879
Fair value of common stock issued			2,766,773
Fair value of preferred stock exchange			104,320

Business Acquisition, Pro Forma Information

The following table presents financial information regarding the former FirstMerit operations included in our Consolidated Statements of Income from the date of acquisition (August 16, 2016) through December 31, 2016 under the column “Actual from acquisition date”. The following table also presents unaudited pro forma information as if the entities were combined for the full years ended December 31, 2016 and 2015, respectively under the “Unaudited Pro Forma” columns. The pro forma information does not necessarily reflect the results of operations that would have occurred had Huntington acquired FirstMerit on January 1, 2015. Furthermore, cost savings and other business synergies related to the acquisition are not reflected in the pro forma amounts.

	Actual from		Unaudited Pro Forma for
	acquisition date through		Year Ended December 31,
(dollar amounts in thousands)	December 31, 2016		2016		2015
Net interest income	$	277,143	$	2,788,074	$	2,599,840
Noninterest income	96,217		1,311,490		1,301,798
Net income	82,083		809,142		842,069

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LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES (Tables)

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period

The following table reflects the contractually required payments receivable, cash flows expected to be collected, and fair value of the credit impaired FirstMerit loans at acquisition date:

(dollar amounts in thousands)	August 16, 2016
Contractually required payments including interest	$	283,947
Less: nonaccretable difference	(84,315		)
Cash flows expected to be collected	199,632
Less: accretable yield	(17,717		)
Fair value of loans acquired	$	181,915

Schedule of financing receivable portfolio segments

Lease financing receivables

Net investments in lease financing receivables by category at December 31, 2016 and 2015 were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Commercial and industrial:
Lease payments receivable	$	1,881,596		$	1,551,885
Estimated residual value of leased assets	797,611			711,181
Gross investment in commercial lease financing receivables	2,679,207			2,263,066
Net deferred origination costs	12,683			7,068
Deferred fees	(253,423		)	(208,669		)
Total net investment in commercial lease financing receivables	$	2,438,467		$	2,061,465

Loans acquired with deteriorated credit quality

The following table presents a rollforward of the accretable yield for purchased credit impaired FirstMerit loans for the year ended December 31, 2016: and 2015:

(dollar amounts in thousands)	2016
Balance, beginning of period	$	—
Impact of acquisition/purchase on August 16, 2016	17,717
Accretion	(5,401		)
Reclassification (to) from nonaccretable difference	24,353
Balance at December 31,	$	36,669

The following table reflects the ending and unpaid balances of the FirstMerit purchased credit-impaired loans at December 31, 2016: 2015

	December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Balance
Commercial and industrial	$	68,338	$	100,031
Commercial real estate	34,042		56,320
Total	$	102,380	$	156,351

Loan Purchases and Sales

The following table summarizes significant portfolio loan purchase and sale activity for the years ended December 31, 2016 and 2015. The table below excludes mortgage loans originated for sale.

(dollar amounts in thousands)	2016				2015
Portfolio loans and leases purchased or transferred from held for sale:
Commercial and industrial	$	394,579			$	316,252
Commercial real estate	—				—
Automobile	—				—
Home equity	—				—
Residential mortgage	16,045				20,463
RV and marine finance	—				—
Other consumer	—				—
Total	$	410,624			$	336,715
Portfolio loans and leases sold or transferred to loans held for sale:
Commercial and industrial	$	1,293,711	(1	)	$	380,713
Commercial real estate	76,965		(2	)	—
Automobile	1,544,642				764,540		(3)
Home equity	—				96,786
Residential mortgage	—				—
RV and marine finance	—				—
Other consumer	—				—
Total	$	2,915,318			$	1,242,039

(1) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale in the 2016 third quarter, net of approximately $341 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(2) Reflects the transfer of approximately $124 million of loans to loans held-for-sale in the 2016 third quarter, net of approximately $47 million of loans transferred back to loans held for investment in the 2016 fourth quarter.

(3) Reflects the transfer of approximately $1.0 billion of loans to loans held-for-sale during the 2015 first quarter, net of approximately $262 million of loans transferred to loans and leases in the 2015 second quarter.

Nonaccrual loans by loan class

The following table presents NALs by loan class at December 31, 2016 and 2015:

	December 31,
(dollar amounts in thousands)	2016		2015
Commercial and industrial	$	234,184	$	175,195
Commercial real estate	20,508		28,984
Automobile	5,766		6,564
Home equity	71,798		66,278
Residential mortgage	90,502		94,560
RV and marine finance	245		—
Other consumer	—		—
Total nonaccrual loans	$	423,003	$	371,581

Aging analysis of loans and leases

The following table presents an aging analysis of loans and leases, including past due loans and leases, by loan class at December 31, 2016 and 2015 (1):

	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 and leases	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
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

	December 31, 2015
	Past Due										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
Commercial and industrial	$	44,715	$	13,580	$	46,978	$	105,273	$	20,454,561	$	20,559,834	$	8,724	(2)
Commercial real estate	9,232		5,721		21,666		36,619		5,232,032		5,268,651		9,549
Automobile loans and leases	69,553		14,965		7,346		91,864		9,388,814		9,480,678		7,162
Home equity	36,477		16,905		56,300		109,682		8,360,800		8,470,482		9,044
Residential mortgage	102,773		34,298		119,354		256,425		5,741,975		5,998,400		69,917
RV and marine finance	—		—		—		—		—		—		—
Other consumer	6,469		1,852		1,395		9,716		553,338		563,054		1,394
Total loans and leases	$	269,219	$	87,321	$	253,039	$	609,579	$	49,731,520	$	50,341,099	$	105,790

(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 years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	Commercial			Consumer			Total
Year ended December 31, 2016:
ALLL balance, beginning of period	$	398,753		$	199,090		$	597,843
Loan charge-offs	(91,914		)	(135,400		)	(227,314		)
Recoveries of loans previously charged-off	73,138			45,280			118,418
Provision (reduction in allowance) for loan and lease losses	84,381			85,026			169,407
Allowance for loans sold or transferred to loans held for sale	(13,267		)	(6,674		)	(19,941		)
ALLL balance, end of period	$	451,091		$	187,322		$	638,413
AULC balance, beginning of period	$	63,448		$	8,633		$	72,081
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	18,692			2,703			21,395
AULC recorded at acquisition	4,403			—			4,403
AULC balance, end of period	$	86,543		$	11,336		$	97,879
ACL balance, end of period	$	537,634		$	198,658		$	736,292
Year ended December 31, 2015:
ALLL balance, beginning of period	$	389,834		$	215,362		$	605,196
Loan charge-offs	(97,800		)	(120,081		)	(217,881		)
Recoveries of loans previously charged-off	86,419			43,669			130,088
Provision (reduction in allowance) for loan and lease losses	20,300			68,379			88,679
Allowance for loans sold or transferred to loans held for sale	—			(8,239		)	(8,239		)
ALLL balance, end of period	$	398,753		$	199,090		$	597,843
AULC balance, beginning of period	$	55,029		$	5,777		$	60,806
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	8,419			2,856			11,275
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	63,448		$	8,633		$	72,081
ACL balance, end of period	$	462,201		$	207,723		$	669,924
Year ended December 31, 2014:
ALLL balance, beginning of period	$	428,358		$	219,512		$	647,870
Loan charge-offs	(101,358		)	(145,243		)	(246,601		)
Recoveries of loans previously charged-off	78,602			43,372			121,974
Provision (reduction in allowance) for loan and lease losses	(15,768		)	98,850			83,082
Allowance for loans sold or transferred to loans held for sale	—			(1,129		)	(1,129		)
ALLL balance, end of period	$	389,834		$	215,362		$	605,196
AULC balance, beginning of period	$	59,487		$	3,412		$	62,899
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(4,458		)	2,365			(2,093		)
AULC recorded at acquisition	—			—			—
AULC balance, end of period	$	55,029		$	5,777		$	60,806
ACL balance, end of period	$	444,863		$	221,139		$	666,002

Loan and lease balances by credit quality indicator

The following table presents each loan and lease class by credit quality indicator at December 31, 2016 and 2015:

	December 31, 2016
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
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
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

	December 31, 2015
	Credit Risk Profile by UCS Classification
(dollar amounts in thousands)	Pass		OLEM		Substandard		Doubtful		Total
Commercial and industrial	$	19,257,789	$	399,339	$	895,577	$	7,129	$	20,559,834
Commercial real estate	5,066,054		79,787		121,167		1,643		5,268,651
	Credit Risk Profile by FICO Score (1), (2)
	750+		650-749		<650		Other (3)		Total
Automobile	4,680,684		3,454,585		1,086,914		258,495		9,480,678
Home equity	5,210,741		2,466,425		582,326		210,990		8,470,482
Residential mortgage	3,564,064		1,813,779		567,984		52,573		5,998,400
RV and marine finance	—		—		—		—		—
Other consumer	233,969		269,746		49,650		9,689		563,054

(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 for the years ended December 31, 2016 and 2015:

(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 balance:
Attributable to 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.

(dollar amounts in thousands)	Commercial		Consumer		Total
ALLL at December 31, 2015:
Portion of ALLL balance:
Attributable to purchased credit-impaired loans	$	2,602	$	127	$	2,729
Attributable to loans individually evaluated for impairment	27,428		35,008		62,436
Attributable to loans collectively evaluated for impairment	368,723		163,955		532,678
Total ALLL balance:	$	398,753	$	199,090	$	597,843
Loan and Lease Ending Balances at December 31, 2015: (1)
Portion of loan and lease ending balances:
Attributable to purchased credit-impaired loans	$	34,775	$	1,506	$	36,281
Individually evaluated for impairment	626,010		651,778		1,277,788
Collectively evaluated for impairment	25,167,700		23,859,330		49,027,030
Total loans and leases evaluated for impairment	$	25,828,485	$	24,512,614	$	50,341,099

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 for the years ended December 31, 2016 and 2015 (1):

							Year Ended
	December 31, 2016						December 31, 2016
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	299,606	$	358,712	$	—	$	292,567	$	9,401
Commercial real estate	88,817		126,152		—		73,040		4,191
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	—		—		—		—		—
With an allowance recorded:
Commercial and industrial (2)	406,243		448,121		22,259		301,598		8,124
Commercial real estate (3)	97,238		107,512		3,434		68,865		2,978
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage (5)	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233
Total
Commercial and industrial	705,849		806,833		22,259		594,165		17,525
Commercial real estate	186,055		233,664		3,434		141,905		7,169
Automobile	30,961		31,298		1,850		31,722		2,162
Home equity	319,404		352,722		15,032		277,692		13,410
Residential mortgage	327,753		363,099		12,849		348,158		11,945
RV and marine finance	—		—		—		—		—
Other consumer	3,897		3,897		260		4,481		233

							Year Ended
	December 31, 2015						December 31, 2015
(dollar amounts in thousands)	Ending Balance		Unpaid Principal Balance (4)		Related Allowance		Average Balance		Interest Income Recognized
With no related allowance recorded:
Commercial and industrial	$	255,801	$	279,551	$	—	$	114,389	$	2,584
Commercial real estate	68,260		125,814		—		88,173		7,199
Automobile	—		—		—		—		—
Home equity	—		—		—		—		—
Residential mortgage	—		—		—		—		—
RV and marine finance	—		—		—		—		—
Other consumer	52		101		—		51		17
With an allowance recorded:
Commercial and industrial (2)	246,249		274,203		21,916		267,662		15,110
Commercial real estate (3)	90,475		104,930		8,114		114,019		4,833
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage (5)	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,640		4,649		176		4,675		254
Total
Commercial and industrial	502,050		553,754		21,916		382,051		17,694
Commercial real estate	158,735		230,744		8,114		202,192		12,032
Automobile	31,304		31,878		1,779		30,163		2,224
Home equity	248,839		284,957		16,242		292,014		13,092
Residential mortgage	368,449		411,114		16,938		373,573		12,889
RV and marine finance	—		—		—		—		—
Other consumer	4,692		4,750		176		4,726		271

(1) All automobile, home equity, residential mortgage, and other consumer impaired loans included in these tables are considered impaired due to their status as a TDR.

(2) At December 31, 2016, $293 million of the $406 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $91 million of the $246 million C&I loans with an allowance recorded were considered impaired due to their status as a TDR.

(3) At December 31, 2016, $81 million of the $97 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR. At December 31, 2015, $35 million of the $90 million CRE loans with an allowance recorded were considered impaired due to their status as a TDR.

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

(5) At December 31, 2016, $29 million of the $328 million residential mortgage loans with an allowance recorded were guaranteed by the U.S. government. At December 31, 2015, $29 million of the $368 million residential mortgage loans with an allowance recorded 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 years ended December 31, 2016 and 2015:

	New Troubled Debt Restructurings During The Year Ended (1)
	December 31, 2016						December 31, 2015
(dollar amounts in thousands)	Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)			Number of Contracts	Post-modification Outstanding Balance (2)		Financial effects of modification (3)
Commercial and industrial:
Interest rate reduction	4	161		5			13	8,243		(1,042		)
Amortization or maturity date change	872	490,488		(8,751		)	765	524,356		(5,853		)
Other	20	1,951		(13.996		)	16	29,842		(449		)
Total Commercial and industrial	896	492,600		(8,760		)	794	562,441		(7,344		)
Commercial real estate:
Interest rate reduction	2	223		—			4	2,249		(4		)
Amortization or maturity date change	111	69,192		(1,868		)	143	141,238		(1,249		)
Other	4	315		16			11	480		(30		)
Total commercial real estate:	117	69,730		(1,852		)	158	143,967		(1,283		)
Automobile:
Interest rate reduction	17	212		12			41	121		5
Amortization or maturity date change	1,593	14,542		1,065			1,591	12,268		533
Chapter 7 bankruptcy	1,059	8,418		400			926	7,390		423
Other	—	—		—			—	—		—
Total Automobile	2,669	23,172		1,477			2,558	19,779		961
Home equity:
Interest rate reduction	55	2,928		110			55	4,399		161
Amortization or maturity date change	578	32,006		(3,709		)	1,591	79,023		(10,639		)
Chapter 7 bankruptcy	282	10,035		2,819			330	9,855		4,271
Other	—	—		—			—	—		—
Total Home equity	915	44,969		(780		)	1,976	93,277		(6,207		)
Residential mortgage:
Interest rate reduction	13	1,287		(18		)	15	1,565		(61		)
Amortization or maturity date change	363	39,170		(1,650		)	518	57,859		(455		)
Chapter 7 bankruptcy	62	5,715		(86		)	139	14,183		(164		)
Other	4	424		—			11	1,266		—
Total Residential mortgage	442	46,596		(1,754		)	683	74,873		(680		)
RV and marine finance:
Interest rate reduction	—	—		—			—	—		—
Amortization or maturity date change	—	—		—			—	—		—
Chapter 7 bankruptcy	—	—		—			—	—		—
Other	—	—		—			—	—		—
Total RV and marine finance	—	—		—			—	—		—
Other consumer:
Interest rate reduction	—	—		—			1	96		3
Amortization or maturity date change	6	575		24			10	198		8
Chapter 7 bankruptcy	8	72		7			11	69		9
Other	—	—		—			—	—		—
Total Other consumer	14	647		31			22	363		20
Total new troubled debt restructurings	5,053	$	677,714	$	(11,638	)	6,191	$	894,700	$	(14,533	)

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

(2) Post-modification balances approximate pre-modification balances. The aggregate amount of charge-offs as a result of a restructuring are not significant.

(3) Amounts represent the financial impact via provision (recovery) for loan and lease losses as a result of the modification.

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AVAILABLE-FOR-SALE AND OTHER SECURITIES (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Contractual maturities of investment securities

Contractual maturities of available-for-sale and other securities as of December 31, 2016 and 2015 were:

	2016				2015
(dollar amounts in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Under 1 year	$	223,789	$	221,495	$	333,891	$	332,980
After 1 year through 5 years	1,147,510		1,149,460		1,184,454		1,189,455
After 5 years through 10 years	1,956,893		1,962,345		1,648,808		1,645,759
After 10 years	11,884,812		11,665,245		5,259,855		5,263,063
Other securities:
Nonmarketable equity securities	547,704		547,704		332,786		332,786
Mutual funds	15,286		15,286		10,604		10,604
Marketable equity securities	861		1,302		525		794
Total available-for-sale and other securities	$	15,776,855	$	15,562,837	$	8,770,923	$	8,775,441

Amortized cost, fair value, and gross unrealized gain 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 December 31, 2016 and 2015:

			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

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
U.S. Treasury	$	5,457	$	15	$	—		$	5,472
Federal agencies:
Mortgage-backed securities	4,505,318		30,078		(13,708		)	4,521,688
Other agencies	115,076		888		(51		)	115,913
Total U.S. Treasury, Federal agency securities	4,625,851		30,981		(13,759		)	4,643,073
Municipal securities	2,431,943		51,558		(27,105		)	2,456,396
Asset-backed securities	901,059		535		(40,181		)	861,413
Corporate debt	464,207		4,824		(2,554		)	466,477
Other securities	347,863		271		(52		)	348,082
Total available-for-sale and other securities	$	8,770,923	$	88,169	$	(83,651	)	$	8,775,441

Available for sale securities in an unrealized loss position

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 December 31, 2016 and 2015:

	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 years ended December 31, 2016, 2015, and 2014:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Gross gains on sales of securities	$	23,095		$	6,730		$	17,729
Gross (losses) on sales of securities	(21,060		)	(3,546		)	(175		)
Net gain (loss) on sales of securities	$	2,035		$	3,184		$	17,554

Credit ratings on selected investment securities

The following table summarizes the relevant characteristics of the Company's CDO securities portfolio, which are included in asset-backed securities, at December 31, 2016 and 2015. 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		15,307		(3,287		)	BB	19/21	7	13	54
MM Comm III	4,573		4,369		3,618		(751		)	BB	5/8	5	6	38
Pre TSL IX (1)	5,000		3,955		3,253		(702		)	C	27/37	16	9	8
Pre TSL XI (1)	25,000		19,576		15,767		(3,809		)	C	43/53	14	8	14
Pre TSL XIII (1)	27,530		19,106		17,146		(1,960		)	C	45/54	9	11	29
Reg Diversified (1)	25,500		4,610		1,752		(2,858		)	D	20/37	35	8	—
Tropic III	31,000		31,000		19,160		(11,840		)	BB	28/37	16	7	42
Total at December 31, 2016	$	137,197	$	101,210	$	76,003	$	(25,207	)
Total at December 31, 2015	$	179,574	$	131,991	$	100,338	$	(31,654	)

(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.

OTTI recognized in earnings

For the periods ended December 31, 2016, 2015, and 2014, the following table summarizes by security type, the total OTTI losses recognized in the Consolidated Statements of Income for securities evaluated for impairment as described above:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Available-for-sale and other securities:
Collateralized Debt Obligations	$	—		$	(2,440	)	$	—
Municipal Securities	(2,119		)	—			—
Total available-for-sale and other securities	$	(2,119	)	$	(2,440	)	$	—

The following table rolls forward the OTTI recognized in earnings on debt securities held by Huntington for the years ended December 31, 2016, and 2015 as follows:

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015
Balance, beginning of year	$	18,368		$	30,869
Reductions from sales	(8,690		)	(14,941		)
Credit losses not previously recognized	2,119			—
Additional credit losses	—			2,440
Balance, end of year	$	11,797		$	18,368

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HELD-TO-MATURITY SECURITIES (Tables)

12 Months Ended

Dec. 31, 2016

Held-to-maturity Securities [Abstract]

Contractual maturities of held-to-maturity securities

Listed below are the contractual maturities of held-to-maturity securities at December 31, 2016 and December 31, 2015:

	December 31, 2016				December 31, 2015
(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	41,261		40,791		25,909		25,227
After 10 years	7,157,083		7,139,943		5,506,592		5,484,407
Total mortgage-backed securities	7,198,344		7,180,734		5,532,501		5,509,634
Other agencies:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	398,341		399,452		283,960		284,907
After 10 years	204,083		201,180		336,092		334,004
Total other agencies	602,424		600,632		620,052		618,911
Total U.S. Government backed agencies	7,800,768		7,781,366		6,152,553		6,128,545
Municipal securities:
1 year or less	—		—		—		—
After 1 year through 5 years	—		—		—		—
After 5 years through 10 years	—		—		—		—
After 10 years	6,171		5,902		7,037		6,913
Total municipal securities	6,171		5,902		7,037		6,913
Total held-to-maturity securities	$	7,806,939	$	7,787,268	$	6,159,590	$	6,135,458

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 December 31, 2016 and 2015:

			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

			Unrealized
(dollar amounts in thousands)	Amortized Cost		Gross Gains		Gross Losses			Fair Value
December 31, 2015
Federal agencies:
Mortgage-backed securities	$	5,532,501	$	14,637	$	(37,504	)	$	5,509,634
Other agencies	620,052		1,645		(2,786		)	618,911
Total U.S. Government backed agencies	6,152,553		16,282		(40,290		)	6,128,545
Municipal securities	7,037		—		(124		)	6,913
Total held-to-maturity securities	$	6,159,590	$	16,282	$	(40,414	)	$	6,135,458

Investment securities in an unrealized loss position

The following tables provide detail on HTM securities with unrealized losses aggregated by investment category and the length of time the individual securities have been in a continuous loss position at December 31, 2016 and 2015:

	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	)

	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, 2015
Federal agencies:
Mortgage-backed securities	$	3,692,890	$	(25,418	)	$	519,872	$	(12,086	)	$	4,212,762	$	(37,504	)
Other agencies	425,410		(2,689		)	6,647		(97		)	432,057		(2,786		)
Total U.S. Government backed securities	4,118,300		(28,107		)	526,519		(12,183		)	4,644,819		(40,290		)
Municipal securities	—		—			6,913		(124		)	6,913		(124		)
Total temporarily impaired securities	$	4,118,300	$	(28,107	)	$	533,432	$	(12,307	)	$	4,651,732	$	(40,414	)

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LOAN SALES AND SECURITIZATIONS (Tables)

12 Months Ended

Dec. 31, 2016

Transfers and Servicing [Abstract]

Schedule of activity relating to loans securitized sold with servicing rights

The following table summarizes activity relating to SBA loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
SBA loans sold with servicing retained	$	269,923	$	232,848	$	214,760
Pretax gains resulting from above loan sales (1)	20,516		18,626		24,579

(1) Recorded in gain on sale of loans.

The following table summarizes activity relating to residential mortgage loans sold with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Residential mortgage loans sold with servicing retained	$	3,632,024	$	3,322,723	$	2,330,060
Pretax gains resulting from above loan sales (1)	96,585		83,148		57,590

(1) Recorded in mortgage banking income.

The following table summarizes activity relating to automobile loans securitized with servicing retained for the years ended December 31, 2016, 2015, and 2014:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015	2014 (1)
UPB of automobile loans securitized with servicing retained	$	1,500,000	750,000	—
Net proceeds received in loan securitizations	1,551,679		780,117	—
Servicing asset recognized in loan securitizations (2)	15,670		11,180	—
Pretax gains resulting from above loan securitizations (3)	5,632		5,333	—

(1) Huntington did not sell or securitize any automobile loans in 2014.

(2) Recorded in servicing rights.

(3) Recorded in gain on sale of loans

Servicing asset at fair value

The following tables summarize the changes in MSRs recorded using either the fair value method or the amortization method for the years ended December 31, 2016 and 2015:

Fair Value Method

(dollar amounts in thousands)	2016			2015
Fair value, beginning of year	$	17,585		$	22,786
Change in fair value during the period due to:
Time decay (1)	(950		)	(1,295		)
Payoffs (2)	(1,827		)	(3,031		)
Changes in valuation inputs or assumptions (3)	(1,061		)	(875		)
Fair value, end of year	$	13,747		$	17,585
Weighted-average life (years)	5.7			4.6

(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.

Servicing asset at amortized cost

The following tables summarize the changes in the carrying value of the servicing asset for the years ended December 31, 2016, and 2015:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	19,747		$	18,536
New servicing assets created	8,705			8,012
Amortization and other	(7,372		)	(6,801		)
Carrying value, end of year	$	21,080		$	19,747
Fair value, end of year	$	24,270		$	22,649
Weighted-average life (years)	3.3			3.3

Changes in the carrying value of automobile loan servicing rights for the years ended December 31, 2016, and 2015, and the fair value at the end of each period were as follows:

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	8,771		$	6,898
New servicing assets created	15,670			11,180
Amortization and other	(6,156		)	(9,307		)
Carrying value, end of year	$	18,285		$	8,771
Fair value, end of year	$	18,388		$	9,127
Weighted-average life (years)	4.2			3.2

Amortization Method

(dollar amounts in thousands)	2016			2015
Carrying value, beginning of year	$	143,133		$	132,812
New servicing assets created	37,813			35,407
Servicing assets acquired	15,317			—
Impairment recovery (charge)	1,918			(2,732		)
Amortization and other	(25,715		)	(22,354		)
Carrying value, end of year	$	172,466		$	143,133
Fair value, end of year	$	172,779		$	143,435
Weighted-average life (years)	7.2			5.9

Summary of key assumptions and the sensitivity analysis of servicing rights

A summary of key assumptions and the sensitivity of the automobile loan servicing rights value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	19.98	%	$	(1,047	)	$	(2,026	)	18.36	%	$	(500	)	$	(895	)
Spread over forward interest rate swap rates	500 bps		(26		)	(53		)	500 bps		(10		)	(19		)

For MSRs under the fair value method, a summary of key assumptions and the sensitivity of the MSR value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	10.90	%	$	(501	)	$	(970	)	14.70	%	$	(864	)	$	(1,653	)
Spread over forward interest rate swap rates	536 bps		(454		)	(879		)	539 bps		(559		)	(1,083		)

For MSRs under the amortization method, a summary of key assumptions and the sensitivity of the MSR value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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)	7.80	%	$	(4,510	)	$	(8,763	)	11.10	%	$	(5,543	)	$	(10,648	)
Spread over forward interest rate swap rates	1,173 bps		(5,259		)	(10,195		)	875 bps		(4,662		)	(9,017		)

A summary of key assumptions and the sensitivity of the SBA loan servicing rights value to changes in these assumptions at December 31, 2016, and 2015 follows:

	December 31, 2016								December 31, 2015
			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	%	$	(324	)	$	(644	)	7.60	%	$	(313	)	$	(622	)
Discount rate	15.00		(1,270		)	(1,870		)	15.00		(610		)	(1,194		)

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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill by business segment

A rollforward of goodwill by business segment for the years ended December 31, 2016 and 2015, is presented in the table below:

	Consumer &
	Business		Commercial							Home		Treasury/			Huntington
(dollar amounts in thousands)	Banking		Banking		CREVF		RBHPCG			Lending		Other			Consolidated
Balance, January 1, 2015	$	368,097	$	59,594	$	—	$	90,012		$	—	$	4,838		$	522,541
Goodwill acquired during the period	—		155,828		—		—			—		—			155,828
Adjustments	—		—		—		(1,500		)	—		—			(1,500		)
Balance, December 31, 2015	368,097		215,422		—		88,512			—		4,838			676,869
Goodwill acquired during the period	1,030,046		237,542		—		53,230			—		—			1,320,818
Adjustments	—		—		—		—			—		(4,838		)	(4,838		)
Balance, December 31, 2016	$	1,398,143	$	452,964	$	—	$	141,742		$	—	$	—		$	1,992,849

Summary of other intangible assets

At December 31, 2016 and 2015, Huntington’s other intangible assets consisted of the following:

(dollar amounts in thousands)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Value
December 31, 2016
Core deposit intangible	$	324,619		$	(26,778	)	$	297,841
Customer relationship	194,956		(1)	(90,383		)	104,573
Other	150			(106		)	44
Total other intangible assets	$	519,725		$	(117,267	)	$	402,458
December 31, 2015
Core deposit intangible	$	400,058		$	(384,606	)	$	15,452
Customer relationship	116,094			(76,656		)	39,438
Other	25,164			(25,076		)	88
Total other intangible assets	$	541,316		$	(486,338	)	$	54,978

Estimated amortization expense of other intangible assets

The estimated amortization expense of other intangible assets for the next five years is as follows:

(dollar amounts in thousands)	Amortization Expense
2017	$	56,333
2018	53,161
2019	50,446
2020	42,291
2021	39,783

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PREMISES AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Premises and equipment were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016			2015
Land and land improvements	$	199,193		$	140,414
Buildings	523,181			366,963
Leasehold improvements	265,384			246,222
Equipment	721,014			647,769
Total premises and equipment	1,708,772			1,401,368
Less accumulated depreciation and amortization	(893,264		)	(780,828		)
Net premises and equipment	$	815,508		$	620,540

Depreciation and amortization charged to expense and rental income credited to net occupancy expense

Depreciation and amortization charged to expense and rental income credited to net occupancy expense for the three years ended December 31, 2016, 2015, and 2014 were:

(dollar amounts in thousands)	2016		2015		2014
Total depreciation and amortization of premises and equipment	$	125,856	$	85,805	$	82,296
Rental income credited to occupancy expense	12,512		12,563		11,556

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SHORT-TERM BORROWINGS (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Short-term Debt

Borrowings with original maturities of one year or less are classified as short-term and were comprised of the following at December 31, 2016 and 2015:

	At December 31,
(dollar amounts in thousands)	2016		2015
Federal funds purchased and securities sold under agreements to repurchase	$	1,248,089	$	601,272
Federal Home Loan Bank advances	2,425,000		—
Other borrowings	19,565		14,007
Total short-term borrowings	$	3,692,654	$	615,279

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LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2016

Debt Instruments [Abstract]

Schedule of Long-Term Debt

Huntington’s long-term debt consisted of the following:

	At December 31,
(dollar amounts in thousands)	2016		2015
The Parent Company:
Senior Notes:
3.19% Huntington Bancshares Incorporated medium-term notes due 2021	$	972,625	$	—
2.33% Huntington Bancshares Incorporated senior note due 2022	953,674		—
2.64% Huntington Bancshares Incorporated senior note due 2018	399,278		399,169
Subordinated Notes:
7.00% Huntington Bancshares Incorporated subordinated notes due 2020	319,857		326,379
3.55% Huntington Bancshares Incorporated subordinated notes due 2023	248,156		—
Sky Financial Capital Trust IV 2.40% junior subordinated debentures due 2036 (1)	74,320		74,320
Sky Financial Capital Trust III 2.40% junior subordinated debentures due 2036 (1)	72,165		72,165
Huntington Capital I Trust Preferred 1.70% junior subordinated debentures due 2027 (2)	68,720		110,706
Huntington Capital II Trust Preferred 1.06% junior subordinated debentures due 2028 (3)	31,576		54,030
Camco Statutory Trust I 2.30% due 2037 (4)	4,244		4,212
Total notes issued by the parent	3,144,615		1,040,981
The Bank:
Senior Notes:
2.24% Huntington National Bank senior notes due 2018	843,568		841,313
2.10% Huntington National Bank senior notes due 2018	747,170		745,894
1.75% Huntington National Bank senior notes due 2018	499,732		501,006
1.43% Huntington National Bank senior note due 2019	499,686		498,678
2.23% Huntington National Bank senior note due 2017	499,445		500,416
2.43% Huntington National Bank senior notes due 2020	498,448		498,185
2.97% Huntington National Bank senior notes due 2020	495,088		495,998
1.42% Huntington National Bank senior notes due 2017 (5)	250,000		250,000
5.04% Huntington National Bank medium-term notes due 2018	36,351		37,469
1.31% Huntington National Bank senior note due 2016	—		498,360
1.40% Huntington National Bank senior note due 2016	—		349,399
Subordinated Notes:
3.86% Huntington National Bank subordinated notes due 2026	239,293		—
6.67% Huntington National Bank subordinated notes due 2018	131,910		136,227
5.45% Huntington National Bank subordinated notes due 2019	81,155		83,833
5.59% Huntington National Bank subordinated notes due 2016	—		103,357
Total notes issued by the bank	4,821,846		5,540,135
FHLB Advances:
3.47% weighted average rate, varying maturities greater than one year	7,540		7,800
Other:
Huntington Technology Finance nonrecourse debt, 3.43% effective interest rate, varying maturities	277,523		301,577
Huntington Technology Finance ABS Trust 2014 1.70% due 2020	57,494		123,577
Huntington Technology Finance ABS Trust 2012 1.79% due 2017	—		27,153
Other	141		141
Total other	335,158		452,448
Total long-term debt	$	8,309,159	$	7,041,364

(1) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.400%

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.70%

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.625%

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.33%.

(5) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.425%.

The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Consolidated Financial Statements. A list of trust-preferred securities outstanding at December 31, 2016 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.59	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.59		(3)	32,093		3,093
Sky Financial Capital Trust III	2.40		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.25		(4)	74,320		2,320
Camco Financial Trust	3.43		(5)	4,244		155
Total				$	252,552	$	13,919

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

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR + 0.70.

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR + 62.5.

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR + 1.40.

(5) Variable effective rate (including impact of purchase accounting accretion) at December 31, 2016, based on three month LIBOR + 1.33.

Schedule of Maturities of Long-term Debt

Long-term debt maturities for the next five years and thereafter are as follows:

(dollar amounts in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
The Parent Company:
Senior notes	$	—	$	400,000	$	—	$	—	$	1,000,000	$	1,000,000	$	2,400,000
Subordinated notes	—		—		—		300,000		—		503,463		803,463
The Bank:
Senior notes	750,000		2,135,000		500,000		1,000,000		—		—		4,385,000
Subordinated notes	—		125,539		75,716		—		—		250,000		451,255
FHLB Advances	100		1,115		325		2,368		—		3,769		7,677
Other	64,288		84,357		62,048		81,551		42,187		726		335,157
Total	$	814,388	$	2,746,011	$	638,089	$	1,383,919	$	1,042,187	$	1,757,958	$	8,382,552

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OTHER COMPREHENSIVE INCOME (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Components of other comprehensive income

The components of Huntington’s OCI in the three years ended December 31, 2016, 2015, and 2014, were as follows:

	2016
	Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	905		$	(320	)	$	585
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(203,048		)	70,599			(132,449		)
Less: Reclassification adjustment for net losses (gains) included in net income	(107,145		)	37,884			(69,261		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(309,288		)	108,163			(201,125		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	171			(60		)	111
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	2,381			(833		)	1,548
Less: Reclassification adjustment for net (gains) losses included in net income	(360		)	126			(234		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	2,021			(707		)	1,314
Net change in pension and other post-retirement obligations	38,218			(13,376		)	24,842
Total other comprehensive income (loss)	$	(268,878	)	$	94,020		$	(174,858	)

	2015
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	19,606		$	(6,933	)	$	12,673
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(26,021		)	9,108			(16,913		)
Less: Reclassification adjustment for net losses (gains) included in net income	(3,901		)	1,365			(2,536		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	(10,316		)	3,540			(6,776		)
Net change in unrealized holding gains (losses) on available-for-sale equity securities	(474		)	166			(308		)
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	12,966			(4,538		)	8,428
Less: Reclassification adjustment for net (gains) losses included in net income	(220		)	77			(143		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	12,746			(4,461		)	8,285
Net change in pension and other post-retirement obligations	(7,795		)	2,728			(5,067		)
Total other comprehensive income (loss)	$	(5,839	)	$	1,973		$	(3,866	)

	2014
				Tax (expense)
(dollar amounts in thousands)	Pretax			Benefit			After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$	13,583		$	(4,803	)	$	8,780
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	86,618			(30,914		)	55,704
Less: Reclassification adjustment for net gains (losses) included in net income	(15,559		)	5,446			(10,113		)
Net change in unrealized holding gains (losses) on available-for-sale debt securities	84,642			(30,271		)	54,371
Net change in unrealized holding gains (losses) on available-for-sale equity securities	295			(103		)	192
Unrealized gains and losses on derivatives used in cash flow hedging relationships arising during the period	14,141			(4,949		)	9,192
Less: Reclassification adjustment for net losses (gains) losses included in net income	(3,971		)	1,390			(2,581		)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	10,170			(3,559		)	6,611
Net change in pension and post-retirement obligations	(106,857		)	37,400			(69,457		)
Total other comprehensive income (loss)	$	(11,750	)	$	3,467		$	(8,283	)

Activity in accumulated other comprehensive income, net of tax

Activity in accumulated OCI for the two years ended December 31, were as follows:

(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, 2014	$	15,137		$	484		$	(12,233	)	$	(225,680	)	$	(222,292	)
Other comprehensive income before reclassifications	(4,240		)	(308		)	8,428			—			3,880
Amounts reclassified from accumulated OCI to earnings	(2,536		)	—			(143		)	(5,067		)	(7,746		)
Period change	(6,776		)	(308		)	8,285			(5,067		)	(3,866		)
December 31, 2015	8,361			176			(3,948		)	(230,747		)	(226,158		)
Other comprehensive income before reclassifications	(131,864		)	111			1,548			—			(130,205		)
Amounts reclassified from accumulated OCI to earnings	(69,261		)	—			(234		)	24,842			(44,653		)
Period change	(201,125		)	111			1,314			24,842			(174,858		)
December 31, 2016	$	(192,764	)	$	287		$	(2,634	)	$	(205,905	)	$	(401,016	)

(1) Amount at December 31, 2016 includes $(82) million of net unrealized losses on securities transferred from the available-for-sale securities portfolio to the held-to-maturity securities portfolio. The net unrealized losses will be recognized in earnings over the remaining life of the security using the effective interest method.

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 Consolidated Statements of Income for the years ended December 31, 2016 and 2015:

	Reclassifications out of accumulated OCI
Accumulated OCI components	Amounts reclassified from accumulated OCI						Location of net gain (loss) reclassified from accumulated OCI into earnings
(dollar amounts in thousands)	2016			2015
Gains (losses) on debt securities:
Amortization of unrealized gains (losses)	$	91,058		$	(144	)	Interest income—held-to-maturity securities—taxable
Realized gain (loss) on sale of securities	18,206			6,485			Noninterest income—net gains (losses) on sale of securities
OTTI recorded	(2,119		)	(2,440		)	Noninterest income—net gains (losses) on sale of securities
Total before tax	107,145			3,901
Tax (expense) benefit	(37,884		)	(1,365		)
Net of tax	$	69,261		$	2,536
Gains (losses) on cash flow hedging relationships:
Interest rate contracts	$	361		$	210		Interest and fee income—loans and leases
Interest rate contracts	(1		)	10			Noninterest expense—other income
Total before tax	360			220
Tax (expense) benefit	(126		)	(77		)
Net of tax	$	234		$	143
Amortization of defined benefit pension and post-retirement items:
Actuarial gains (losses)	$	(40,186	)	$	5,827		Noninterest expense—personnel costs
Net periodic benefit costs	1,968			1,968			Noninterest expense—personnel costs
Total before tax	(38,218		)	7,795
Tax (expense) benefit	13,376			(2,728		)
Net of tax	$	(24,842	)	$	5,067

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EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Basic and diluted earnings loss per share

The calculation of basic and diluted earnings per share for each of the three years ended December 31 was as follows:

	Year ended December 31,
(dollar amounts in thousands, except per share amounts)	2016			2015			2014
Basic earnings per common share:
Net income	$	711,821		$	692,957		$	632,392
Preferred stock dividends	(65,274		)	(31,873		)	(31,854		)
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Basic earnings per common share:	$	0.72		$	0.82		$	0.73
Diluted earnings per common share
Net income available to common shareholders	$	646,547		$	661,084		$	600,538
Effect of assumed preferred stock conversion	—			—			—
Net income applicable to diluted earnings per share	$	646,547		$	661,084		$	600,538
Average common shares issued and outstanding	904,438			803,412			819,917
Dilutive potential common shares:
Stock options and restricted stock units and awards	11,728			11,633			11,421
Shares held in deferred compensation plans	2,486			1,912			1,420
Other	138			172			323
Dilutive potential common shares:	14,352			13,717			13,164
Total diluted average common shares issued and outstanding	918,790			817,129			833,081
Diluted earnings per common share	$	0.70		$	0.81		$	0.72

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SHARE-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted average assumptions used in the option pricing model

The following table presents the weighted average assumptions used in the option-pricing model at the grant date for options granted in the three years ended December 31, 2016, 2015, and 2014:

	2016			2015			2014
Assumptions
Risk-free interest rate	1.63		%	2.13		%	1.69		%
Expected dividend yield	3.18			2.57			2.61
Expected volatility of Huntington’s common stock	30.0			29.0			32.3
Expected option term (years)	6.5			6.5			5
Weighted-average grant date fair value per share	$	2.17		$	2.57		$	2.13

Share based compensation expense and related tax benefit

The following table presents total share-based compensation expense and related tax benefit for the three years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016		2015		2014
Share-based compensation expense	$	65,608	$	51,415	$	43,666
Tax benefit	22,496		17,618		14,779

Stock option activity and related information

Huntington’s stock option activity and related information for the year ended December 31, 2016, was as follows:

(amounts in thousands, except years and per share amounts)	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2016	16,121		$	7.25
Granted	1,596		10.06
Exercised	(2,372	)	5.90
Forfeited/expired	(471	)	15.73
Outstanding at December 31, 2016	14,874		$	7.50	3.6	$	85,159
Expected to vest (1)	3,656		$	9.59	7.1	$	13,267
Exercisable at December 31, 2016	10,985		$	6.75	2.4	$	71,114

(1) The number of options expected to vest includes an estimate of 233 thousand shares expected to be forfeited.

Schedule of restricted stock, restricted stock units, and performance shares

The following table summarizes the status of Huntington’s restricted stock units and performance share awards as of December 31, 2016, and activity for the year ended December 31, 2016:

	Restricted Stock Awards				Restricted Stock Units				Performance Share Awards
(amounts in thousands, except per share amounts)	Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share		Quantity		Weighted- Average Grant Date Fair Value Per Share
Nonvested at January 1, 2016	7		$	9.53	12,170		$	9.11	2,893		$	8.99
Granted	—		—		6,526		9.69		981		9.04
Assumed	916		9.68		—		—		807		9.68
Vested	(241	)	9.68		(3,142	)	7.91		(1,307	)	8.05
Forfeited	(26	)	9.68		(821	)	9.52		(67	)	9.78
Nonvested at December 31, 2016	656		$	9.68	14,733		$	9.61	3,307		$	9.63

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BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of weighted-average assumptions used

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016 and 2015, and the net periodic benefit cost for the years then ended:

	Pension Benefits				Post-Retirement Benefits
	2016		2015		2016		2015
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.38	%	4.54	%	3.64	%	3.81	%
Rate of compensation increase	N/A		N/A		N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (1)	4.54		4.12		3.81		3.73
Expected return on plan assets	6.75		7.00		N/A		N/A
Rate of compensation increase	N/A		N/A		N/A		N/A
N/A—Not Applicable

(1) The 2015 post-retirement benefit expense was remeasured as of September 30, 2015, for the purchase of life insurance contracts for participants due a death benefit. The discount rate was 3.72% from January 1, 2015 to September 30, 2015, and was changed to 3.77% for the period from September 30, 2015 to December 31, 2015.

The following table shows the weighted-average assumptions used to determine the benefit obligation at December 31, 2016, and the net periodic benefit cost for the year then ended:

	Pension Benefits		Post-Retirement Benefits
	2016		2016
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.49	%	4.16	%
Rate of compensation increase	N/A		N/A
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.12	%	3.57	%
Expected return on plan assets	6.00		N/A
Rate of compensation increase	N/A		N/A
N/A—Not Applicable

Schedule of changes in projected benefit obligation

The following table reconciles the beginning and ending balances of the benefit obligation of the Plan and the post-retirement benefit plan with the amounts recognized in the consolidated balance sheets at December 31:

	Pension Benefits						Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2016			2015
Projected benefit obligation at beginning of measurement year	$	754,714		$	799,594		$	8,025		$	15,963
Changes due to:
Service cost	4,100			1,830			—			—
Interest cost	26,992			31,937			219			506
Benefits paid	(18,306		)	(17,246		)	(1,915		)	(2,211		)
Settlements	(21,684		)	(27,976		)	—			(6,993		)
Medicare subsidies	—			—			—			117
Actuarial assumptions and gains and losses	(9,470		)	(33,425		)	963			643
Total changes	(18,368		)	(44,880		)	(733		)	(7,938		)
Projected benefit obligation at end of measurement year	$	736,346		$	754,714		$	7,292		$	8,025

Schedule of changes in fair value of plan assets

The following table reconciles the beginning and ending balances of the fair value of Plan assets at the December 31, 2016 and 2015 measurement dates:

	Pension Benefits
(dollar amounts in thousands)	2016			2015
Fair value of plan assets at beginning of measurement year	$	594,217		$	653,013
Changes due to:
Actual return on plan assets	39,895			(16,122		)
Employer Contributions	150,000			—
Settlements	(20,081		)	(25,428		)
Benefits paid	(18,306		)	(17,246		)
Total changes	151,508			(58,796		)
Fair value of plan assets at end of measurement year	$	745,725		$	594,217

Schedule of net periodic benefit costs

The following table shows the components of net periodic benefit costs recognized in the three years ended December 31, 2016:

	Pension Benefits									Post-Retirement Benefits
(dollar amounts in thousands)	2016			2015			2014			2016			2015			2014
Service cost	$	4,100		$	1,830		$	1,740		$	—		$	—		$	—
Interest cost	26,992			31,937			32,398			219			506			856
Expected return on plan assets	(40,895		)	(44,175		)	(45,783		)	—			—			—
Amortization of prior service credit	—			—			—			(1,968		)	(1,968		)	(1,609		)
Amortization of (gain) / loss	7,459			7,934			5,767			(288		)	(401		)	(571		)
Settlements	9,495			12,645			11,200			—			(3,090		)	—
Benefit costs	$	7,151		$	10,171		$	5,322		$	(2,037	)	$	(4,953	)	$	(1,324	)

Schedule of allocation of plan assets

At December 31, 2016 and 2015, The Huntington National Bank, as trustee, held all Plan assets. The Plan assets consisted of investments in a variety of corporate and government fixed income investments, money market funds, and mutual funds as follows:

	Fair Value
(dollar amounts in thousands)	2016				2015
Cash equivalents:
Federated-money market	$	16,087	2	%	$	15,590	3	%
Fixed income:
Corporate obligations	212,967		28		205,081		34
U.S. Government Obligations	157,764		21		64,456		11
Mutual funds-fixed income	27,851		4		32,874		6
U.S. Government Agencies	7,201		1		6,979		1
Equities:
Mutual funds-equities	134,832		18		136,026		23
Common stock	144,754		19		120,046		20
Preferred stock	4,778		1		—		—
Exchange Traded Funds	28,101		4		6,530		1
Limited Partnerships	11,390		2		6,635		1
Fair value of plan assets	$	745,725	100	%	$	594,217	100	%

Schedule of expected benefit payments

At December 31, 2016, the following table shows when benefit payments were expected to be paid:

(dollar amounts in thousands)	Pension Benefits		Post- Retirement Benefits
2017	$	46,199	$	923
2018	45,077		761
2019	43,720		684
2020	41,827		640
2021	41,528		606
2022 through 2026	205,278		2,482

Schedule of amounts recognized in balance sheet

The following table presents the amounts recognized in the Consolidated Balance Sheets at December 31, 2016 and 2015, for all defined benefit plans:

(dollar amounts in thousands)	2016	2015
Noncurrent liabilities	169,657	192,734

Schedule of amounts recognized in OCI

The following tables present the amounts recognized in OCI as of December 31, 2016, 2015, and 2014, and the changes in accumulated OCI for the years ended December 31, 2016, 2015, and 2014:

(dollar amounts in thousands)	2016			2015			2014
Net actuarial loss	$	(217,863	)	$	(243,984	)	$	(240,197	)
Prior service cost	11,958			13,237			14,517
Defined benefit pension plans	$	(205,905	)	$	(230,747	)	$	(225,680	)

	2016
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(354,997	)	$	124,250		$	(230,747	)
Net actuarial (loss) gain:
Amounts arising during the year	37,818			(13,236		)	24,582
Amortization included in net periodic benefit costs	2,368			(829		)	1,539
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(316,779	)	$	110,874		$	(205,905	)

	2015
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(347,202	)	$	121,522		$	(225,680	)
Net actuarial (loss) gain:
Amounts arising during the year	(25,520		)	8,931			(16,589		)
Amortization included in net periodic benefit costs	19,693			(6,892		)	12,801
Prior service cost:
Amounts arising during the year	—			—			—
Amortization included in net periodic benefit costs	(1,968		)	689			(1,279		)
Balance, end of year	$	(354,997	)	$	124,250		$	(230,747	)

	2014
(dollar amounts in thousands)	Pretax			Tax (expense) Benefit			After-tax
Balance, beginning of year	$	(240,345	)	$	84,122		$	(156,223	)
Net actuarial (loss) gain:
Amounts arising during the year	(133,085		)	46,580			(86,505		)
Amortization included in net periodic benefit costs	19,056			(6,670		)	12,386
Prior service cost:
Amounts arising during the year	8,781			(3,073		)	5,708
Amortization included in net periodic benefit costs	(1,609		)	563			(1,046		)
Balance, end of year	$	(347,202	)	$	121,522		$	(225,680	)

Defined contribution plan disclosures

The following table shows the costs of providing the defined contribution plan:

	Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Defined contribution plan	$	36,107	$	31,896	$	31,110

Schedule of Huntington stock statistics for defined contribution plan

The following table shows the number of shares, market value, and dividends received on shares of Huntington stock held by the defined contribution plan:

	December 31,
(dollar amounts in thousands, except share amounts)	2016		2015
Shares in Huntington common stock	11,748,379		13,076,164
Market value of Huntington common stock	$	162,245	$	144,622
Dividends received on shares of Huntington stock	3,692		3,076

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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Reconciliation of gross unrecognized tax benefits

The following table provides a reconciliation of the beginning and ending amounts of gross unrecognized tax benefits:

(dollar amounts in thousands)	2016		2015
Unrecognized tax benefits at beginning of year	$	23,104	$	1,172
Gross increases for tax positions taken during current period	657		23,104
Gross increases for tax positions taken during prior years	—		—
Gross decreases for tax positions taken during prior years	—		(1,172		)
Unrecognized tax benefits at end of year	$	23,761	$	23,104

Summary of provision (benefit) for income taxes

The following is a summary of the provision (benefit) for income taxes:

	Year Ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Current tax provision (benefit)
Federal	$	39,738	$	146,195	$	186,436
State	3,456		5,677		(1,017		)
Total current tax provision (benefit)	43,194		151,872		185,419
Deferred tax provision (benefit)
Federal	160,610		66,823		41,167
State	4,137		1,953		(5,993		)
Total deferred tax provision (benefit)	164,747		68,776		35,174
Provision for income taxes	$	207,941	$	220,648	$	220,593

Reconcilement of provision (benefit) for income taxes

The following is a reconciliation for provision for income taxes:

	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Provision for income taxes computed at the statutory rate	$	321,925		$	319,762		$	298,545
Increases (decreases):
Tax-exempt income	(27,453		)	(20,839		)	(17,971		)
Tax-exempt bank owned life insurance income	(20,149		)	(18,340		)	(19,967		)
General business credits	(64,151		)	(47,894		)	(46,047		)
State deferred tax asset valuation allowance adjustment, net	—			—			(7,430		)
Capital loss	(45,500		)	(46,288		)	(26,948		)
Affordable housing investment amortization, net of tax benefits	36,848			31,741			33,752
State income taxes, net	4,936			4,960			2,873
Other	1,485			(2,454		)	3,786
Provision for income taxes	$	207,941		$	220,648		$	220,593

Significant components of deferred tax assets and liabilities

The significant components of deferred tax assets and liabilities at December 31, were as follows:

	At December 31,
(dollar amounts in thousands)	2016			2015
Deferred tax assets:
Allowances for credit losses	$	254,977		$	238,415
Fair value adjustments	216,768			121,642
Net operating and other loss carryforward	140,842			61,492
Tax credit carryforward	76,328			1,823
Accrued expense/prepaid	64,380			44,733
Pension and other employee benefits	34,921			2,405
Partnership investments	22,514			21,614
Market discount	8,295			11,781
Purchase accounting adjustments	—			41,917
Other	10,506			11,645
Total deferred tax assets	829,531			557,467
Deferred tax liabilities:
Lease financing	325,091			261,078
Loan origination costs	137,577			114,488
Purchase accounting adjustments	74,371			6,944
Securities adjustments	55,786			19,952
Operating assets	54,372			46,685
Mortgage servicing rights	51,440			48,514
Pension and other employee benefits	—			—
Other	8,796			5,463
Total deferred tax liabilities	707,433			503,124
Net deferred tax asset before valuation allowance	122,098			54,343
Valuation allowance	(5,003		)	(3,620		)
Net deferred tax asset	$	117,095		$	50,723

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FAIR VALUES OF ASSETS AND LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2016

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 at December 31, 2016 and 2015 are summarized below:

	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

	Fair Value Measurements at Reporting Date Using						Netting Adjustments (1)			December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Assets
Loans held for sale	$	—	$	337,577	$	—	$	—		$	337,577
Loans held for investment	—		32,889		1,748		—			34,637
Trading account securities:
Municipal securities	—		4,159		—		—			4,159
Other securities	32,475		363		—		—			32,838
	32,475		4,522		—		—			36,997
Available-for-sale and other securities:
U.S. Treasury securities	5,472		—		—		—			5,472
Federal agencies: Mortgage-backed	—		4,521,688		—		—			4,521,688
Federal agencies: Other agencies	—		115,913		—		—			115,913
Municipal securities	—		360,845		2,095,551		—			2,456,396
Asset-backed securities	—		761,076		100,337		—			861,413
Corporate debt	—		466,477		—		—			466,477
Other securities	11,397		3,899		—		—			15,296
	16,869		6,229,898		2,195,888		—			8,442,655
MSRs	—		—		17,585		—			17,585
Derivative assets	—		429,448		6,721		(161,297		)	274,872
Liabilities
Derivative liabilities	—		287,994		665		(144,309		)	144,350
Short-term borrowings	—		1,770		—		—			1,770

(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.

Roll forward of derivatives measured on a recurring basis and classified as Level 3

The tables below present a rollforward of the balance sheet amounts for the years ended December 31, 2016, 2015, and 2014 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 Year ended December 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)	—			(7,251		)	—			—			—
Total gains/losses for the period:
Included in earnings	(3,838		)	(928		)	7,049			(2,593		)	(2,353		)
Included in OCI	—			—			(28,270		)	6,448			—
Purchases/originations	—			—			1,399,394			—			56,469
Sales	—			—			(37,444		)	(25,196		)	—
Repayments	—			—			—			—			(7,984		)
Settlements	—			—			(638,236		)	(2,993		)	—
Closing balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
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	$	(3,838	)	$	(928	)	$	(33,415	)	$	3,722		$	—

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

	Level 3 Fair Value Measurements Year ended December 31, 2015
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private- label CMO			Asset- backed securities			Loans held for investment
Opening balance	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			(2,793		)	—			—			—			—
Total gains/losses for the period:
Included in earnings	(5,201		)	5,489			149			47			(2,400		)	(497		)
Included in OCI	—			—			(3,652		)	1,832			24,802			—
Purchases/originations	—			—			1,002,153			—			—			—
Sales	—			—			(9,656		)	(30,077		)	—			—
Repayments	—			—			—			—			—			(8,345		)
Settlements	—			—			(311,036		)	(2,266		)	(4,803		)	—
Closing balance	$	17,585		$	6,056		$	2,095,551		$	—		$	100,337		$	1,748
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	$	(5,201	)	$	5,489		$	—		$	—		$	(2,440	)	$	(497	)

	Level 3 Fair Value Measurements Year Ended December 31, 2014
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private label CMO			Asset- backed securities			Loans held for investment
Balance, beginning of year	$	34,236		$	2,390		$	654,537		$	32,140		$	107,419		$	52,286
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			—			—			—			—			—
Total gains/losses for the period:
Included in earnings	(11,450		)	3,047			—			36			226			(918		)
Included in OCI	—			—			14,776			452			21,839			—
Purchases/originations	—			—			1,038,348			—			—			—
Sales	—			—			—			—			(22,870		)	—
Repayments	—			—			—			—			—			(40,778		)
Settlements	—			(2,077		)	(290,068		)	(2,164		)	(23,876		)	—
Balance, end of year	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
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	$	(11,450	)	$	3,047		$	14,776		$	452		$	21,137		$	(1,624	)

Roll forward of assets measured on a recurring basis and classified as Level 3

	Level 3 Fair Value Measurements Year ended December 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)	—			(7,251		)	—			—			—
Total gains/losses for the period:
Included in earnings	(3,838		)	(928		)	7,049			(2,593		)	(2,353		)
Included in OCI	—			—			(28,270		)	6,448			—
Purchases/originations	—			—			1,399,394			—			56,469
Sales	—			—			(37,444		)	(25,196		)	—
Repayments	—			—			—			—			(7,984		)
Settlements	—			—			(638,236		)	(2,993		)	—
Closing balance	$	13,747		$	(2,123	)	$	2,798,044		$	76,003		$	47,880
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	$	(3,838	)	$	(928	)	$	(33,415	)	$	3,722		$	—

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

	Level 3 Fair Value Measurements Year ended December 31, 2015
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private- label CMO			Asset- backed securities			Loans held for investment
Opening balance	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			(2,793		)	—			—			—			—
Total gains/losses for the period:
Included in earnings	(5,201		)	5,489			149			47			(2,400		)	(497		)
Included in OCI	—			—			(3,652		)	1,832			24,802			—
Purchases/originations	—			—			1,002,153			—			—			—
Sales	—			—			(9,656		)	(30,077		)	—			—
Repayments	—			—			—			—			—			(8,345		)
Settlements	—			—			(311,036		)	(2,266		)	(4,803		)	—
Closing balance	$	17,585		$	6,056		$	2,095,551		$	—		$	100,337		$	1,748
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	$	(5,201	)	$	5,489		$	—		$	—		$	(2,440	)	$	(497	)

	Level 3 Fair Value Measurements Year Ended December 31, 2014
							Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments			Municipal securities			Private label CMO			Asset- backed securities			Loans held for investment
Balance, beginning of year	$	34,236		$	2,390		$	654,537		$	32,140		$	107,419		$	52,286
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			—			—			—			—			—
Total gains/losses for the period:
Included in earnings	(11,450		)	3,047			—			36			226			(918		)
Included in OCI	—			—			14,776			452			21,839			—
Purchases/originations	—			—			1,038,348			—			—			—
Sales	—			—			—			—			(22,870		)	—
Repayments	—			—			—			—			—			(40,778		)
Settlements	—			(2,077		)	(290,068		)	(2,164		)	(23,876		)	—
Balance, end of year	$	22,786		$	3,360		$	1,417,593		$	30,464		$	82,738		$	10,590
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	$	(11,450	)	$	3,047		$	14,776		$	452		$	21,137		$	(1,624	)

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 years ended December 31, 2016, 2015, and 2014:

	Level 3 Fair Value Measurements Year ended December 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	$	(3,838	)	$	(928	)	$	—	$	—		$	—
Securities gains (losses)	—			—			788		(2,598		)	—
Interest and fee income	—			—			—		—			—
Noninterest income	—			—			6,261		5			(2,353		)
Total	$	(3,838	)	$	(928	)	$	7,049	$	(2,593	)	$	(2,353	)

	Level 3 Fair Value Measurements Year ended December 31, 2015
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private- label CMO		Asset- backed securities			Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income	$	(5,201	)	$	5,489	$	—	$	—	$	—		$	—
Securities gains (losses)	—			—		149		—		(2,440		)	—
Interest and fee income	—			—		—		47		40			(497		)
Noninterest income	—			—		—		—		—			—
Total	$	(5,201	)	$	5,489	$	149	$	47	$	(2,400	)	$	(497	)

	Level 3 Fair Value Measurements Year Ended December 31, 2014
						Available-for-sale securities
(dollar amounts in thousands)	MSRs			Derivative instruments		Municipal securities		Private label CMO		Asset- backed securities		Loans held for investment
Classification of gains and losses in earnings:
Mortgage banking income (loss)	$	(11,450	)	$	3,047	$	—	$	—	$	—	$	—
Securities gains (losses)	—			—		—		—		170		—
Interest and fee income	—			—		—		36		56		(1,032		)
Noninterest income	—			—		—		—		—		114
Total	$	(11,450	)	$	3,047	$	—	$	36	$	226	$	(918	)

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:

	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		)

	December 31, 2015
	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	$	337,577	$	326,802	$	10,775		$	1,268	$	1,294	$	(26	)
Loans held for investment	34,637		35,385		$	(748	)	428		497		$	(69	)

The following tables present the net gains (losses) from fair value changes, including net gains (losses) associated with instrument specific credit risk for the years ended December 31, 2016, 2015, and 2014:

	Net gains (losses) from fair value changes Year ended December 31,
(dollar amounts in thousands)	2016		2015			2014
Assets
Loans held for sale	$	6,741	$	(2,342	)	$	(1,978	)
Loans held for investment	—		(568		)	(918		)

	Gains (losses) included in fair value changes associated with instrument specific credit  risk Year ended December 31,
(dollar amounts in thousands)	2016		2015		2014
Assets
Loans held for investment	$	436	$	199	$	911

Assets measured at fair value on a nonrecurring basis

For the year ended December 31, 2016, 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) Year ended December 31, 2016
MSRs	$	171,309	$	—	$	—	$	171,309	$	1,918
Impaired loans	53,818		—		—		53,818		11,412
Other real estate owned	50,930		—		—		50,930		(620		)

Quantitative information about significant unobservable level 3 fair value measurement inputs

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 December 31, 2016:

	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	Discount 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

Fair value by balance sheet grouping

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 December 31, 2016 and December 31, 2015:

	December 31, 2016				December 31, 2015
	Carrying		Fair		Carrying		Fair
(dollar amounts in thousands)	Amount		Value		Amount		Value
Financial Assets:
Cash and short-term assets	$	1,443,037	$	1,443,037	$	898,994	$	898,994
Trading account securities	133,295		133,295		36,997		36,997
Loans held for sale	512,951		515,640		474,621		484,511
Available-for-sale and other securities	15,562,837		15,562,837		8,775,441		8,775,441
Held-to-maturity securities	7,806,939		7,787,268		6,159,590		6,135,458
Net loans and direct financing leases	66,323,583		66,294,639		49,743,256		48,024,998
Derivatives	238,219		238,219		274,872		274,872
Financial Liabilities:
Deposits	75,607,717		76,161,091		55,294,979		55,299,435
Short-term borrowings	3,692,654		3,692,654		615,279		615,279
Long-term debt	8,309,159		8,387,444		7,041,364		7,016,789
Derivatives	98,286		98,286		144,350		144,350

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 Consolidated Balance Sheets at fair value at December 31, 2016 and December 31, 2015:

	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

	Estimated Fair Value Measurements at Reporting Date Using						December 31, 2015
(dollar amounts in thousands)	Level 1		Level 2		Level 3
Financial Assets
Held-to-maturity securities	$	—	$	6,135,458	$	—	$	6,135,458
Net loans and direct financing leases	—		—		48,024,998		48,024,998
Financial Liabilities
Deposits	—		51,869,105		3,430,330		55,299,435
Short-term borrowings	—		1,770		613,509		615,279
Long-term debt	—		—		7,016,789		7,016,789

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DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2016

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 December 31, 2016, identified by the underlying interest rate-sensitive instruments:

(dollar amounts in thousands)	Fair Value Hedges		Cash Flow Hedges		Total
Instruments associated with:
Loans	$	—	$	3,325,000	$	3,325,000
Deposits	—		—		—
Subordinated notes	950,000		—		950,000
Long-term debt	6,525,000		—		6,525,000
Total notional value at December 31, 2016	$	7,475,000	$	3,325,000	$	10,800,000

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 December 31, 2016:

							Weighted-Average Rate
(dollar amounts in thousands)	Notional Value		Average Maturity (years)	Fair Value			Receive		Pay
Asset conversion swaps
Receive fixed—generic	$	3,325,000	0.6	$	(2,060	)	1.04	%	0.91	%
Liability conversion swaps
Receive fixed—generic	7,475,000		3.1	(51,496		)	1.49		0.88
Total swap portfolio at December 31, 2016	$	10,800,000	2.3	$	(53,556	)	1.35	%	0.89	%

Asset and liability derivatives included in accrued income and other assets

The following table presents the fair values at December 31, 2016 and 2015 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)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	46,440	$	80,513
Interest rate contracts not designated as hedging instruments	213,587		190,846
Foreign exchange contracts not designated as hedging instruments	23,265		37,727
Commodity contracts not designated as hedging instruments	108,026		117,894
Equity contracts not designated as hedging instruments	9,775		—
Total contracts	$	401,093	$	426,980

Liability derivatives included in accrued expenses and other liabilities:

(dollar amounts in thousands)	December 31, 2016		December 31, 2015
Interest rate contracts designated as hedging instruments	$	99,996	$	15,215
Interest rate contracts not designated as hedging instruments	143,976		121,815
Foreign exchange contracts not designated as hedging instruments	19,576		35,283
Commodity contracts not designated as hedging instruments	104,328		114,887
Equity contracts not designated as hedging instruments	—		—
Total contracts	$	367,876	$	287,200

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:

	Year ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Interest rate contracts
Change in fair value of interest rate swaps hedging deposits (1)	$	(82	)	$	(996	)	$	(1,045	)
Change in fair value of hedged deposits (1)	72			992			1,025
Change in fair value of interest rate swaps hedging subordinated notes (2)	(47,852		)	(8,237		)	476
Change in fair value of hedged subordinated notes (2)	45,019			8,237			(476		)
Change in fair value of interest rate swaps hedging long-term debt (2)	(74,481		)	3,903			1,990
Change in fair value of hedged other long-term debt (2)	67,389			(3,602		)	828

(1) Effective portion of the hedging relationship is recognized in Interest expense—deposits in the Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the 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 Consolidated Statements of Income. Any resulting ineffective portion of the hedging relationship is recognized in noninterest income in the 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 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)						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) (pre-tax)
(dollar amounts in thousands)	2016		2015		2014			2016			2015			2014
Interest rate contracts
Loans	$	1,548	$	8,428	$	9,192	Interest and fee income—loans and leases	$	(361	)	$	(210	)	$	(4,064	)
Investment securities	—		—		—		Noninterest income - other income	1			(10		)	93
Total	$	1,548	$	8,428	$	9,192		$	(360	)	$	(220	)	$	(3,971	)

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 years ending December 31, 2016, 2015, and 2014:

	December 31,
(dollar amounts in thousands)	2016			2015			2014
Derivatives in cash flow hedging relationships
Interest rate contracts:
Loans	$	(317	)	$	(763	)	$	74

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 Consolidated Balance Sheets at December 31, 2016 and December 31, 2015:

Offsetting of Financial Assets and Derivative Assets
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized assets		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral received			Net amount
Offsetting of Financial Assets and Derivative Assets
December 31, 2016	Derivatives	$	420,159	$	(181,940	)	$	238,219	$	(34,328	)	$	(5,428	)	$	198,463
December 31, 2015	Derivatives	436,169		(161,297		)	274,872		(39,305		)	(3,462		)	232,105

Offsetting of financial liabilities and derivative liabilities

Offsetting of Financial Liabilities and Derivative Liabilities
									Gross amounts not offset in the consolidated balance sheets
(dollar amounts in thousands)		Gross amounts of recognized liabilities		Gross amounts offset in the consolidated balance sheets			Net amounts of assets presented in the consolidated balance sheets		Financial instruments			Cash collateral delivered			Net amount
Offsetting of Financial Liabilities and Derivative Liabilities
December 31, 2016	Derivatives	$	370,647	$	(272,361	)	$	98,286	$	(7,550	)	$	(23,943	)	$	66,793
December 31, 2015	Derivatives	288,659		(144,309		)	144,350		(62,460		)	(20		)	81,870

Derivative assets and liabilities used in mortgage banking activities

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

(dollar amounts in thousands)	December 31, 2016			December 31, 2015
Derivative assets:
Interest rate lock agreements	$	5,747		$	6,721
Forward trades and options	13,319			2,468
Total derivative assets	19,066			9,189
Derivative liabilities:
Interest rate lock agreements	(1,598		)	(220		)
Forward trades and options	(1,173		)	(1,239		)
Total derivative liabilities	(2,771		)	(1,459		)
Net derivative asset	$	16,295		$	7,730

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VIEs (Tables)

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Carrying amount and classification of the trusts assets and liabilities

The following tables present the carrying amount and classification of the consolidated trusts’ assets and liabilities that were included in the Consolidated Balance Sheets at December 31, 2016 and 2015:

	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

	December 31, 2015
	Huntington Technology Funding Trust				Other Consolidated VIEs		Total
(dollar amounts in thousands)	Series 2012A		Series 2014A
Assets:
Cash	$	1,377	$	1,561	$	—	$	2,938
Net loans and leases	32,180		152,331		—		184,511
Accrued income and other assets	—		—		229		229
Total assets	$	33,557	$	153,892	$	229	$	187,678
Liabilities:
Other long-term debt	$	27,153	$	123,577	$	—	$	150,730
Accrued interest and other liabilities	—		—		229		229
Total liabilities	27,153		123,577		229		150,959
Equity:
Beneficial Interest owned by third party	$	6,404	$	30,315	—		36,719
Total liabilities and equity	$	33,557	$	153,892	$	229	$	187,678

The following tables provide a summary of the assets and liabilities included in Huntington’s 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 December 31, 2016, and 2015:

	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
2012-1 Automobile Trust	—		—		—
2012-2 Automobile Trust	—		—		—
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

	December 31, 2015
(dollar amounts in thousands)	Total Assets		Total Liabilities		Maximum Exposure to Loss
2015-1 Automobile Trust	$	7,695	$	—	$	7,695
2012-1 Automobile Trust	94		—		94
2012-2 Automobile Trust	771		—		771
Trust Preferred Securities	13,919		317,106		—
Low Income Housing Tax Credit Partnerships	425,500		196,001		425,500
Other Investments	68,746		25,762		68,746
Total	$	516,725	$	538,869	$	502,806

Summary of outstanding trust preferred securities

Huntington’s long-term debt consisted of the following:

	At December 31,
(dollar amounts in thousands)	2016		2015
The Parent Company:
Senior Notes:
3.19% Huntington Bancshares Incorporated medium-term notes due 2021	$	972,625	$	—
2.33% Huntington Bancshares Incorporated senior note due 2022	953,674		—
2.64% Huntington Bancshares Incorporated senior note due 2018	399,278		399,169
Subordinated Notes:
7.00% Huntington Bancshares Incorporated subordinated notes due 2020	319,857		326,379
3.55% Huntington Bancshares Incorporated subordinated notes due 2023	248,156		—
Sky Financial Capital Trust IV 2.40% junior subordinated debentures due 2036 (1)	74,320		74,320
Sky Financial Capital Trust III 2.40% junior subordinated debentures due 2036 (1)	72,165		72,165
Huntington Capital I Trust Preferred 1.70% junior subordinated debentures due 2027 (2)	68,720		110,706
Huntington Capital II Trust Preferred 1.06% junior subordinated debentures due 2028 (3)	31,576		54,030
Camco Statutory Trust I 2.30% due 2037 (4)	4,244		4,212
Total notes issued by the parent	3,144,615		1,040,981
The Bank:
Senior Notes:
2.24% Huntington National Bank senior notes due 2018	843,568		841,313
2.10% Huntington National Bank senior notes due 2018	747,170		745,894
1.75% Huntington National Bank senior notes due 2018	499,732		501,006
1.43% Huntington National Bank senior note due 2019	499,686		498,678
2.23% Huntington National Bank senior note due 2017	499,445		500,416
2.43% Huntington National Bank senior notes due 2020	498,448		498,185
2.97% Huntington National Bank senior notes due 2020	495,088		495,998
1.42% Huntington National Bank senior notes due 2017 (5)	250,000		250,000
5.04% Huntington National Bank medium-term notes due 2018	36,351		37,469
1.31% Huntington National Bank senior note due 2016	—		498,360
1.40% Huntington National Bank senior note due 2016	—		349,399
Subordinated Notes:
3.86% Huntington National Bank subordinated notes due 2026	239,293		—
6.67% Huntington National Bank subordinated notes due 2018	131,910		136,227
5.45% Huntington National Bank subordinated notes due 2019	81,155		83,833
5.59% Huntington National Bank subordinated notes due 2016	—		103,357
Total notes issued by the bank	4,821,846		5,540,135
FHLB Advances:
3.47% weighted average rate, varying maturities greater than one year	7,540		7,800
Other:
Huntington Technology Finance nonrecourse debt, 3.43% effective interest rate, varying maturities	277,523		301,577
Huntington Technology Finance ABS Trust 2014 1.70% due 2020	57,494		123,577
Huntington Technology Finance ABS Trust 2012 1.79% due 2017	—		27,153
Other	141		141
Total other	335,158		452,448
Total long-term debt	$	8,309,159	$	7,041,364

(1) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.400%

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.70%

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.625%

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR +1.33%.

(5) Variable effective rate at December 31, 2016, based on three-month LIBOR +0.425%.

The trust securities are the obligations of the trusts, and as such, are not consolidated within Huntington’s Consolidated Financial Statements. A list of trust-preferred securities outstanding at December 31, 2016 follows:

(dollar amounts in thousands)	Rate			Principal amount of subordinated note/ debenture issued to trust (1)		Investment in unconsolidated subsidiary
Huntington Capital I	1.59	%	(2)	$	69,730	$	6,186
Huntington Capital II	1.59		(3)	32,093		3,093
Sky Financial Capital Trust III	2.40		(4)	72,165		2,165
Sky Financial Capital Trust IV	2.25		(4)	74,320		2,320
Camco Financial Trust	3.43		(5)	4,244		155
Total				$	252,552	$	13,919

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

(2) Variable effective rate at December 31, 2016, based on three-month LIBOR + 0.70.

(3) Variable effective rate at December 31, 2016, based on three-month LIBOR + 62.5.

(4) Variable effective rate at December 31, 2016, based on three-month LIBOR + 1.40.

(5) Variable effective rate (including impact of purchase accounting accretion) at December 31, 2016, based on three month LIBOR + 1.33.

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COMMITMENTS AND CONTINGENT LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Contract amounts of various commitments to extend credit

The contract amounts of these financial agreements at December 31, 2016, and December 31, 2015 were as follows:

	At December 31,
(dollar amounts in thousands)	2016		2015
Contract amount represents credit risk
Commitments to extend credit:
Commercial	$	15,190,056	$	11,448,927
Consumer	12,235,943		8,574,093
Commercial real estate	1,697,671		813,271
Standby letters of credit	637,182		511,706
Commercial letters-of-credit	4,610		56,119

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OTHER REGULATORY MATTERS (Tables)

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Period-end capital amounts and capital ratios

		Well-				December 31,
		capitalized		Minimum		2016				2015
		Capital		Capital		Basel III
(dollar amounts in thousands)		Ratios		Ratios		Ratio		Amount		Ratio		Amount
Common equity tier 1 risk-based capital	Consolidated	N.A.		4.50	%	9.56	%	$	7,485,816	9.79	%	$	5,721,028
	Bank	6.50	%	4.50		10.42		8,153,091		9.46		5,518,748
Tier 1 risk-based capital	Consolidated	6.00		6.00		10.92		8,547,154		10.53		6,154,000
	Bank	8.00		6.00		11.61		9,085,921		9.83		5,735,274
Total risk-based capital	Consolidated	10.00		8.00		13.05		10,215,627		12.64		7,386,936
	Bank	10.00		8.00		13.83		10,817,597		11.74		6,850,596
Tier 1 leverage capital	Consolidated	N.A.		4.00		8.70		8,547,154		8.79		6,154,000
	Bank	5.00		4.00		9.29		9,085,921		8.21		5,735,274

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PARENT COMPANY FINANCIAL STATEMENTS (Tables)

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Balance Sheets

The parent-only financial statements, which include transactions with subsidiaries, are as follows:

Balance Sheets	December 31,
(dollar amounts in thousands)	2016		2015
Assets
Cash and due from banks	$	1,752,889	$	917,368
Due from The Huntington National Bank	730,004		406,253
Due from non-bank subsidiaries	45,193		48,151
Investment in The Huntington National Bank	10,668,303		5,966,783
Investment in non-bank subsidiaries	499,611		489,205
Accrued interest receivable and other assets	320,666		192,444
Total assets	$	14,016,666	$	8,020,204
Liabilities and shareholders’ equity
Long-term borrowings	$	3,144,615	$	1,040,981
Dividends payable, accrued expenses, and other liabilities	563,905		384,617
Total liabilities	3,708,520		1,425,598
Shareholders’ equity (1)	10,308,146		6,594,606
Total liabilities and shareholders’ equity	$	14,016,666	$	8,020,204

(1) See Consolidated Statements of Changes in Shareholders’ Equity.

Statements of Income

Statements of Income	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Income
Dividends from
The Huntington National Bank	$	188,200		$	822,000		$	244,000
Non-bank subsidiaries	11,378			38,883			27,773
Interest from
The Huntington National Bank	13,892			5,954			3,906
Non-bank subsidiaries	2,221			2,317			2,613
Other	—			4,529			2,994
Total income	215,691			873,683			281,286
Expense
Personnel costs	11,960			4,770			53,359
Interest on borrowings	59,027			17,428			17,031
Other	122,869			92,735			52,662
Total expense	193,856			114,933			123,052
Income (loss) before income taxes and equity in undistributed net income of subsidiaries	21,835			758,750			158,234
Provision (benefit) for income taxes	(56,255		)	(109,867		)	(62,897		)
Income (loss) before equity in undistributed net income of subsidiaries	78,090			868,617			221,131
Increase (decrease) in undistributed net income (loss) of:
The Huntington National Bank	629,220			(160,567		)	414,049
Non-bank subsidiaries	4,511			(15,093		)	(2,788		)
Net income	$	711,821		$	692,957		$	632,392
Other comprehensive income (loss) (1)	(174,858		)	(3,866		)	(8,283		)
Comprehensive income	$	536,963		$	689,091		$	624,109

(1) See Consolidated Statements of Comprehensive Income for other comprehensive income (loss) detail.

Statements of Cash Flows

Statements of Cash Flows	Year Ended December 31,
(dollar amounts in thousands)	2016			2015			2014
Operating activities
Net income	$	711,821		$	692,957		$	632,392
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries	(633,730		)	175,660			(411,261		)
Depreciation and amortization	(1,390		)	609			548
Loss on sales of securities available-for-sale	—			540			—
Other, net	(23,600		)	(44,197		)	26,685
Net cash (used for) provided by operating activities	53,101			825,569			248,364
Investing activities
Repayments from subsidiaries	464,284			494,905			9,250
Advances to subsidiaries	(1,758,745		)	(612,610		)	(32,350		)
Proceeds from sale of securities available-for-sale	(1,589		)	449			—
Cash paid for acquisitions, net of cash received	(133,218		)	—			(13,452		)
Proceeds from business divestitures	—			9,029			—
Net cash (used for) provided by investing activities	(1,429,268		)	(108,227		)	(36,552		)
Financing activities
Proceeds from issuance of long-term borrowings	1,989,938			—			—
Payment of borrowings	(64,586		)	—			—
Dividends paid on stock	(299,588		)	(224,390		)	(198,789		)
Net proceeds from issuance of common stock	—			—			2,597
Net proceeds from issuance of preferred stock	584,936			—			—
Repurchases of common stock	—			(251,844		)	(334,429		)
Other, net	988			13,492			15,512
Net cash provided by (used for) financing activities	2,211,688			(462,742		)	(515,109		)
Increase (decrease) in cash and due from banks	835,521			254,600			(303,297		)
Cash and due from banks at beginning of year	917,368			662,768			966,065
Cash and due from banks at end of year	$	1,752,889		$	917,368		$	662,768
Supplemental disclosure:
Interest paid	$	36,068		$	17,384		$	21,321

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SEGMENT REPORTING (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Business Segment Financial Information

Listed below is certain financial information reconciled to Huntington’s December 31, 2016, December 31, 2015, and December 31, 2014, reported results by business segment:

Income Statements (dollar amounts in thousands)	Consumer & Business Banking		Commercial Banking		CREVF			RBHPCG			Home Lending			Treasury / Other			Huntington Consolidated
2016
Net interest income	$	1,272,713	$	512,995	$	468,969		$	177,431		$	58,354		$	(121,144	)	$	2,369,318
Provision (benefit) for credit losses	71,945		98,816		26,922			(3,467		)	(3,412		)	(2		)	190,802
Noninterest income	558,811		275,258		40,582			120,687			90,358			64,035			1,149,731
Noninterest expense	1,208,585		385,783		170,276			196,194			124,683			322,964			2,408,485
Provision (benefit) for income taxes	192,848		106,279		109,324			36,887			9,604			(247,001		)	207,941
Net income (loss)	$	358,146	$	197,375	$	203,029		$	68,504		$	17,837		$	(133,070	)	$	711,821
2015
Net interest income	$	1,027,950	$	379,409	$	381,231		$	139,188		$	50,404		$	(27,445	)	$	1,950,737
Provision (benefit) for credit losses	42,777		49,534		4,890			87			2,671			(5		)	99,954
Noninterest income	478,142		258,778		29,254			114,814			87,021			70,721			1,038,730
Noninterest expense	1,099,779		284,026		152,010			195,667			144,848			99,578			1,975,908
Provision (benefit) for income taxes	127,238		106,619		88,755			20,387			(3,533		)	(118,818		)	220,648
Net income (loss)	$	236,298	$	198,008	$	164,830		$	37,861		$	(6,561	)	$	62,521		$	692,957
2014
Net interest income	$	912,992	$	306,434	$	379,363		$	101,839		$	58,015		$	78,498		$	1,837,141
Provision (benefit) for credit losses	75,529		31,521		(52,843		)	4,893			21,889			—			80,989
Noninterest income	409,746		209,238		26,628			173,550			69,899			90,118			979,179
Noninterest expense	982,288		249,300		156,715			236,634			136,374			121,035			1,882,346
Provision (benefit) for income taxes	92,722		82,198		105,742			11,852			(10,622		)	(61,299		)	220,593
Net income (loss)	$	172,199	$	152,653	$	196,377		$	22,010		$	(19,727	)	$	108,880		$	632,392

Segment Disclosure of Assets and Deposits

	Assets at December 31,				Deposits at December 31,
(dollar amounts in thousands)	2016		2015		2016		2015
Consumer & Business Banking	$	21,796,887	$	15,759,561	$	44,860,515	$	30,964,241
Commercial Banking	23,918,429		17,022,387		15,616,241		11,498,883
CREVF	23,580,331		17,856,358		1,886,626		1,649,301
RBHPCG	5,553,012		4,277,970		8,521,401		7,530,241
Home Lending	3,502,304		3,080,690		639,418		361,881
Treasury / Other	21,363,134		13,021,335		4,083,516		3,290,432
Total	$	99,714,097	$	71,018,301	$	75,607,717	$	55,294,979

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QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly results of operations

The following is a summary of the quarterly results of operations, for the years ended December 31, 2016 and 2015:

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2016		2016		2016		2016
Interest income	$	814,858	$	694,346	$	565,658	$	557,251
Interest expense	79,877		68,956		59,777		54,185
Net interest income	734,981		625,390		505,881		503,066
Provision for credit losses	74,906		63,805		24,509		27,582
Noninterest income	334,337		302,415		271,112		241,867
Noninterest expense	681,497		712,247		523,661		491,080
Income before income taxes	312,915		151,753		228,823		226,271
Provision for income taxes	73,952		24,749		54,283		54,957
Net income	238,963		127,004		174,540		171,314
Dividends on preferred shares	18,865		18,537		19,874		7,998
Net income applicable to common shares	$	220,098	$	108,467	$	154,666	$	163,316
Net income per common share — Basic	$	0.20	$	0.12	$	0.19	$	0.21
Net income per common share — Diluted	0.20		0.11		0.19		0.20

	Three months ended
	December 31,		September 30,		June 30,		March 31,
(dollar amounts in thousands, except per share data)	2015		2015		2015		2015
Interest income	$	544,153	$	538,477	$	529,795	$	502,096
Interest expense	47,242		43,022		39,109		34,411
Net interest income	496,911		495,455		490,686		467,685
Provision for credit losses	36,468		22,476		20,419		20,591
Noninterest income	272,215		253,119		281,773		231,623
Noninterest expense	498,766		526,508		491,777		458,857
Income before income taxes	233,892		199,590		260,263		219,860
Provision for income taxes	55,583		47,002		64,057		54,006
Net income	178,309		152,588		196,206		165,854
Dividends on preferred shares	7,972		7,968		7,968		7,965
Net income applicable to common shares	$	170,337	$	144,620	$	188,238	$	157,889
Net income per common share — Basic	$	0.21	$	0.18	$	0.23	$	0.19
Net income per common share — Diluted	0.21		0.18		0.23		0.19

XML

SIGNIFICANT ACCOUNTING POLICIES - Loans and Leases (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) reserve component
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance number of reserves | reserve	2
Allowance number of components of reserve | component	2
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	90 days
Threshold past due for write-off	90 days
Threshold outstanding balance for quarterly impairment evaluation	$ 1,000,000.0
CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	90 days
Threshold past due for write-off	90 days
Threshold outstanding balance for quarterly impairment evaluation	$ 1,000,000
Home Equity | First-lien home equity loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	150 days
Threshold past due for write-off	150 days
Home Equity | Junior-lien home equity loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	120 days
Threshold past due for write-off	120 days
Automobile
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	120 days
Threshold past due for write-off	120 days
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	120 days
Threshold past due for write-off	120 days
Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status	150 days
Threshold past due for write-off	150 days

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SIGNIFICANT ACCOUNTING POLICIES - Property, Plant, and Equipment (Details)	12 Months Ended
	Dec. 31, 2016
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	30 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	40 years
Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	10 years
Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	30 years
Land Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Land Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	20 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	10 years
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	20 years

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ACQUISITION OF FIRSTMERIT CORPORATION - Narrative (Details) $ / shares in Units, $ in Thousands, shares in Millions			3 Months Ended								12 Months Ended
	Aug. 16, 2016 USD ($) $ / shares shares	Jul. 26, 2016 Branch	Dec. 31, 2016 USD ($) state	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) state	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Aug. 15, 2016 $ / shares
Business Acquisition [Line Items]
Goodwill			$ 1,992,849				$ 676,869				$ 1,992,849	$ 676,869	$ 522,541
Number of States in which Entity Operates | state			8								8
Share Price | $ / shares														$ 9.68
Net Income (Loss) Attributable to Parent			$ 238,963	$ 127,004	$ 174,540	$ 171,314	$ 178,309	$ 152,588	$ 196,206	$ 165,854	$ 711,821	692,957	$ 632,392
Number of Branches to be Disposed | Branch		13
FirstMerit Bank
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 3,700,000
Payments to acquired business in cash	836,879
Goodwill	$ 1,320,818		1,300,000								1,300,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Per Share | $ / shares	$ 1.72
Business Combination, Consideration Transferred, Cash Paid for Each Share of Acquired Entity's Shares | $ / shares	$ 5.00
Consideration transferred, equity interest issued and issuable	$ 2,800,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	285
Business Acquisition, Goodwill, Expected Tax Deductible Amount			339,000								$ 339,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount, Term	15 years
Common Stock | FirstMerit Bank
Business Acquisition [Line Items]
Consideration transferred, equity interest issued and issuable	$ 2,766,773
Preferred Stock | FirstMerit Bank
Business Acquisition [Line Items]
Consideration transferred, equity interest issued and issuable	$ 104,320
Core deposit intangible | FirstMerit Bank
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life											10 years
Amortization of Premiums and Accretion of Discounts on Acquired Loans, Securities, Deposits, and Long-term Debt | FirstMerit Bank
Business Acquisition [Line Items]
Revenues											$ 12,000	18,000
Amortization of Premiums and Accretion of Discounts on Previously Acquired Loans, Securities, and Deposits | FirstMerit Bank
Business Acquisition [Line Items]
Revenues											34,000	79,000
Amortization of Acquired Intangibles | FirstMerit Bank
Business Acquisition [Line Items]
Net Income (Loss) Attributable to Parent											(28,000)	$ (44,000)
Acquisition-related Costs | FirstMerit Bank
Business Acquisition [Line Items]
Net Income (Loss) Attributable to Parent											281,000
Disposal Group, Held-for-sale, Not Discontinued Operations | Branches Sold In Connection with Acquisition of FirstMerit
Business Acquisition [Line Items]
Disposal Group, Including Discontinued Operation, Deposit Liabilities			620,000								620,000
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net			$ 106,000								$ 106,000

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ACQUISITION OF FIRSTMERIT CORPORATION - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Aug. 16, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets acquired:
Bank owned life insurance	$ 633,612
Goodwill		$ 1,992,849	$ 676,869	$ 522,541
Servicing rights	15,317
FirstMerit Bank
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	15,745,467
Assets acquired:
Cash and due from banks	703,661
Interest-bearing deposits in banks	32,496
Business Combination, Acquired Receivables, Fair Value	15,475,915
Loans held for sale	150,576
Available for sale and other securities	7,369,967
Premises and equipment	228,635
Goodwill	1,320,818	$ 1,300,000
Accrued income and other assets	506,578
Total assets acquired	26,841,896
Liabilities assumed:
Deposits	21,157,172
Short-Term Debt	1,163,851
Long-term Debt	519,971
Accrued Liabilities and Other Liabilities	292,930
Total liabilities assumed	23,133,924
Total consideration paid	3,707,972
Business Combination, Consideration Transferred [Abstract]
Consideration transferred, equity interest issued and issuable	2,800,000
Payments to acquired business in cash	836,879
FirstMerit Bank | Common Stock
Business Combination, Consideration Transferred [Abstract]
Consideration transferred, equity interest issued and issuable	2,766,773
FirstMerit Bank | Preferred Stock
Business Combination, Consideration Transferred [Abstract]
Consideration transferred, equity interest issued and issuable	104,320
FirstMerit Bank | Core deposit intangible
Assets acquired:
Intangible assets	309,750
FirstMerit Bank | Other
Assets acquired:
Intangible assets	94,571
FirstMerit Bank | Commercial
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	9,309,378
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	9,096,842
FirstMerit Bank | Commercial | Commercial and Industrial
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	7,410,503
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	7,252,692
FirstMerit Bank | Commercial | Commercial Real Estate
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	1,898,875
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	1,844,150
FirstMerit Bank | Consumer
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	6,436,089
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	6,379,073
FirstMerit Bank | Consumer | Automobile
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	1,610,007
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	1,609,145
FirstMerit Bank | Consumer | Home Equity
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	1,579,832
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	1,537,791
FirstMerit Bank | Consumer | Residential Mortgage
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	1,098,588
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	1,092,050
FirstMerit Bank | Consumer | RV and marine finance
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	1,823,312
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	1,816,575
FirstMerit Bank | Consumer | Other Consumer
Business Combination, Acquired Receivables [Abstract]
Business Combination, Acquired Receivables, Gross Contractual Amount	324,350
Assets acquired:
Business Combination, Acquired Receivables, Fair Value	$ 323,512

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LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Narrative (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) securitization	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Aug. 16, 2016 USD ($)	Dec. 31, 2013 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans net premium	$ 120,000,000	$ 262,000,000
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Future lease rental payments due	1,900,000,000
Future lease rental payments due, in 2016	600,000,000
Future lease rental payments due, in 2017	500,000,000
Future lease rental payments due, in 2018	300,000,000
Future lease rental payments due, in 2019	200,000,000
Future lease rental payments due, in 2020	100,000,000
Future lease rental payments due, after 2020	200,000,000
Allowance for loan and lease losses	638,413,000	597,843,000	$ 605,196,000		$ 647,870,000
Interest income under original terms for NAL loans	24,000,000	20,000,000	21,000,000
Interest income recorded for NAL loans	17,000,000	10,000,000	8,000,000
Interest income under original terms for TDR loans	49,000,000	46,000,000	45,000,000
Interest income recorded for TDR loans	$ 40,000,000	41,000,000	39,000,000
Threshold period of consecutive payments to remove from nonaccrual status	6 months
Amount of security for borrowing and advances	$ 19,700,000,000
Loans held for investment	82,319,000	34,637,000		$ 56,000,000
Macquarie Equipment Finance
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Amount of security for borrowing and advances	$ 70,000,000
Number of securitizations | securitization	2
Commercial
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Allowance for loan and lease losses	$ 451,091,000	398,753,000	389,834,000		428,358,000
Threshold outstanding balance for quarterly impairment evaluation	$ 1,000,000.0
Redefault status number of days	90 days
Threshold period past due for nonperforming status	90 days
Consumer
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Allowance for loan and lease losses	$ 187,322,000	$ 199,090,000	$ 215,362,000		$ 219,512,000
Threshold period past due for nonperforming status	120 days
Residential Mortgage | Consumer
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Threshold period past due for nonperforming status	150 days

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Direct Financing Leases (Details) - Commercial - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lease payments receivable	$ 1,881,596	$ 1,551,885
Estimated residual value of leased assets	797,611	711,181
Gross investment in commercial lease financing receivables	2,679,207	2,263,066
Net deferred origination costs	12,683	7,068
Deferred fees	(253,423)	(208,669)
Total net investment in commercial lease financing receivables	$ 2,438,467	$ 2,061,465

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LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Balances at Acquisition (Details) - FirstMerit Bank - USD ($) $ in Thousands	Dec. 31, 2016	Aug. 16, 2016	Dec. 31, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Commercial, Contractually Required Payments Receivable at Acquisition		$ 283,947
Certain Loans Acquired in Transfer, Nonaccretable Difference		84,315
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Commercial, Cash Flows Expected to be Collected at Acquisition		199,632
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$ 36,669	17,717	$ 0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value		$ 181,915

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LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Accretable Yield Roll Forward (Details) - FirstMerit Bank $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 0
Impact of acquisition on March 1, 2014	(17,717)
Accretion	(5,401)
Reclassification from nonaccretable difference	24,353
Balance, end of period	$ 36,669

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Ending and Unpaid Balances (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	$ 102,380
FirstMerit Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	102,380
Acquired loans, unpaid balance	156,351
Commercial and Industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	68,338
Commercial and Industrial | Commercial | FirstMerit Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	68,338
Acquired loans, unpaid balance	100,031
Commercial Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	34,042
Commercial Real Estate | Commercial | FirstMerit Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	34,042
Acquired loans, unpaid balance	56,320
Automobile | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	0
Home Equity | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	0
Residential Mortgage | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	0
RV and marine finance | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	0
Other Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired loans, carrying amount	$ 0

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Loan Purchases and Sales (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			$ 410,624	$ 336,715
Portfolio loans sold or transferred			2,915,318	1,242,039
Commercial and Industrial | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			394,579	316,252
Portfolio loans sold or transferred			1,293,711	380,713
Commercial Real Estate | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			0	0
Portfolio loans sold or transferred			76,965	0
Automobile | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			0	0
Portfolio loans sold or transferred			1,544,642	764,540
Portfolio loans transferred to held-for-sale		$ 1,000,000
Financing Receivable, Reclassification to Loans and Leases	$ 262,000
Home Equity | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			0	0
Portfolio loans sold or transferred			0	96,786
Residential Mortgage | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			16,045	20,463
Portfolio loans sold or transferred			0	0
RV and marine finance | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			0	0
Portfolio loans sold or transferred			0	0
Other Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio loans purchased			0	0
Portfolio loans sold or transferred			$ 0	$ 0

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans by Loan Class (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	$ 423,003	$ 371,581
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	234,184	175,195
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	20,508	28,984
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	5,766	6,564
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	71,798	66,278
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	90,502	94,560
Consumer | RV and marine finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	245	0
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonaccrual loans	$ 0	$ 0

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - NALs Past Due (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	$ 718,203	$ 609,579
Loans and leases, current	66,059,094	49,731,520
Loans and leases	66,961,996	50,341,099
90 or more days past due and accruing	129,362	105,790
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	102,380
Consumer loans	82,319
30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	320,341	269,219
60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	108,443	87,321
90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	289,419	253,039
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	136,362	105,273
Loans and leases, current	27,854,012	20,454,561
Loans and leases	28,058,712	20,559,834
90 or more days past due and accruing	18,148	8,724
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	68,338
Consumer loans	0
Commercial | Commercial and Industrial | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	42,052	44,715
Commercial | Commercial and Industrial | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	20,136	13,580
Commercial | Commercial and Industrial | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	74,174	46,978
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	54,048	36,619
Loans and leases, current	7,212,811	5,232,032
Loans and leases	7,300,901	5,268,651
90 or more days past due and accruing	17,215	9,549
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	34,042
Consumer loans	0
Commercial | Commercial Real Estate | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	21,187	9,232
Commercial | Commercial Real Estate | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	3,202	5,721
Commercial | Commercial Real Estate | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	29,659	21,666
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	103,913	91,864
Loans and leases, current	10,862,715	9,388,814
Loans and leases	10,968,782	9,480,678
90 or more days past due and accruing	10,182	7,162
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0
Consumer loans	2,154
Consumer | Automobile | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	76,283	69,553
Consumer | Automobile | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	17,188	14,965
Consumer | Automobile | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	10,442	7,346
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	115,804	109,682
Loans and leases, current	9,986,697	8,360,800
Loans and leases	10,105,774	8,470,482
90 or more days past due and accruing	11,508	9,044
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0
Consumer loans	3,273
Consumer | Home Equity | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	38,899	36,477
Consumer | Home Equity | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	23,903	16,905
Consumer | Home Equity | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	53,002	56,300
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	276,611	256,425
Loans and leases, current	7,373,414	5,741,975
Loans and leases	7,724,961	5,998,400
90 or more days past due and accruing	66,952	69,917
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0
Consumer loans	74,936
Consumer | Residential Mortgage | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	122,469	102,773
Consumer | Residential Mortgage | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	37,460	34,298
Consumer | Residential Mortgage | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	116,682	119,354
Consumer | RV and marine finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	13,805	0
Loans and leases, current	1,831,123	0
Loans and leases	1,846,447	0
90 or more days past due and accruing	1,462
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0
Consumer loans	1,519
Consumer | RV and marine finance | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	10,009	0
Consumer | RV and marine finance | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	2,230	0
Consumer | RV and marine finance | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	1,566	0
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	17,660	9,716
Loans and leases, current	938,322	553,338
Loans and leases	956,419	563,054
90 or more days past due and accruing	3,895	1,394
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0
Consumer loans	437
Consumer | Other Consumer | 30-59 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	9,442	6,469
Consumer | Other Consumer | 60-89 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	4,324	1,852
Consumer | Other Consumer | 90 or more days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases, past due	$ 3,894	$ 1,395

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
ALLL balance beginning of period	$ 597,843	$ 605,196	$ 647,870
Loan charge-offs	(227,314)	(217,881)	(246,601)
Recoveries of loans previously charged-off	118,418	130,088	121,974
Provision (reduction in allowance) for loan and lease losses	(169,407)	(88,679)	(83,082)
Allowance for loans sold or transferred to loans held for sale	19,941	(8,239)	(1,129)
ALLL balance end of period	638,413	597,843	605,196
AULC balance beginning of period	72,081	60,806	62,899
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(21,395)	11,275	2,093
AULC balance end of period	97,879	72,081	60,806
ACL balance end of period	736,292	669,924	666,002
Additions to Unfunded Loan Commitments and Letters of Credit Allowance	4,403	0	0
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
ALLL balance beginning of period	398,753	389,834	428,358
Loan charge-offs	(91,914)	(97,800)	(101,358)
Recoveries of loans previously charged-off	73,138	86,419	78,602
Provision (reduction in allowance) for loan and lease losses	(84,381)	(20,300)	15,768
Allowance for loans sold or transferred to loans held for sale	(13,267)	0	0
ALLL balance end of period	451,091	398,753	389,834
AULC balance beginning of period	63,448	55,029	59,487
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(18,692)	(8,419)	4,458
AULC balance end of period	86,543	63,448	55,029
ACL balance end of period	537,634	462,201	444,863
Additions to Unfunded Loan Commitments and Letters of Credit Allowance	4,403	0	0
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
ALLL balance beginning of period	199,090	215,362	219,512
Loan charge-offs	(135,400)	(120,081)	(145,243)
Recoveries of loans previously charged-off	45,280	43,669	43,372
Provision (reduction in allowance) for loan and lease losses	(85,026)	(68,379)	(98,850)
Allowance for loans sold or transferred to loans held for sale	6,674	8,239	1,129
ALLL balance end of period	187,322	199,090	215,362
AULC balance beginning of period	8,633	5,777	3,412
Provision (reduction in allowance) for unfunded loan commitments and letters of credit	(2,703)	(2,856)	(2,365)
AULC balance end of period	11,336	8,633	5,777
ACL balance end of period	198,658	207,723	221,139
Additions to Unfunded Loan Commitments and Letters of Credit Allowance	$ 0	$ 0	$ 0

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Indicators (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		$ 28,058,712	$ 20,559,834
Commercial real estate loans		7,300,901	5,268,651
Automobile loans		10,968,782	9,480,678
Home equity loans		10,105,774	8,470,482
Residential mortgage loans		7,724,961	5,998,400
Other consumer loans	[1]	956,419	563,054
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		28,058,712	20,559,834
Commercial real estate loans		7,300,901	5,268,651
Commercial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		26,211,885	19,257,789
Commercial real estate loans		7,042,304	5,066,054
Commercial | OLEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		810,287	399,339
Commercial real estate loans		96,975	79,787
Commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		1,028,819	895,577
Commercial real estate loans		159,098	121,167
Commercial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and industrial loans and leases		7,721	7,129
Commercial real estate loans		2,524	1,643
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile loans		10,966,628	9,480,678
Home equity loans		10,102,501	8,470,482
Residential mortgage loans		7,650,025	5,998,400
Loans and Leases Receivable, Gross, Consumer, Recreation Finance		1,844,928	0
Other consumer loans		955,982	563,054
Consumer | FICO Score, Greater than 750
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile loans		5,369,085	4,680,684
Home equity loans		6,280,328	5,210,741
Residential mortgage loans		4,662,777	3,564,064
Loans and Leases Receivable, Gross, Consumer, Recreation Finance		1,064,143	0
Other consumer loans		346,867	233,969
Consumer | 650-749
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile loans		4,043,611	3,454,585
Home equity loans		2,891,330	2,466,425
Residential mortgage loans		2,285,121	1,813,779
Loans and Leases Receivable, Gross, Consumer, Recreation Finance		644,039	0
Other consumer loans		455,959	269,746
Consumer | 650
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile loans		1,298,460	1,086,914
Home equity loans		637,560	582,326
Residential mortgage loans		615,067	567,984
Loans and Leases Receivable, Gross, Consumer, Recreation Finance		72,995	0
Other consumer loans		133,243	49,650
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Automobile loans		255,472	258,495
Home equity loans		293,283	210,990
Residential mortgage loans		87,060	52,573
Loans and Leases Receivable, Gross, Consumer, Recreation Finance		63,751	0
Other consumer loans		$ 19,913	$ 9,689

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

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - ALLL Attributable to Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment	$ 616,867	$ 532,678
Attributable to loans individually evaluated for impairment	21,546	62,436
Total ALLL balance:	638,413	597,843	$ 605,196	$ 647,870
Collectively evaluated for impairment	65,903,783	49,027,030
Financing Receivable Evaluated For Impairment	66,879,677	50,341,099
Individually evaluated for impairment	873,514	1,277,788
Purchase credit-impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment		2,729
Collectively evaluated for impairment	102,380	36,281
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment	440,566	368,723
Attributable to loans individually evaluated for impairment	10,525	27,428
Total ALLL balance:	451,091	398,753	389,834	428,358
Collectively evaluated for impairment	34,841,609	25,167,700
Financing Receivable Evaluated For Impairment	35,359,613	25,828,485
Individually evaluated for impairment	415,624	626,010
Commercial | Purchase credit-impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment		2,602
Collectively evaluated for impairment	102,380	34,775
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment	176,301	163,955
Attributable to loans individually evaluated for impairment	11,021	35,008
Total ALLL balance:	187,322	199,090	$ 215,362	$ 219,512
Collectively evaluated for impairment	31,062,174	23,859,330
Financing Receivable Evaluated For Impairment	31,520,064	24,512,614
Individually evaluated for impairment	457,890	651,778
Consumer | Purchase credit-impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Attributable to loans collectively evaluated for impairment		127
Collectively evaluated for impairment	$ 0	$ 1,506

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, unpaid principle	$ 0	$ 0
Impaired loans and leases with no related allowance, average balance	0	0
Impaired loans and leases with no related allowance, interest income recognized	0	0
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, unpaid principle	0	0
Impaired loans and leases with no related allowance, average balance	0	0
Impaired loans and leases with no related allowance, interest income recognized	0	0
Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, unpaid principle	0	0
Impaired loans and leases with no related allowance, average balance	0	0
Impaired loans and leases with no related allowance, interest income recognized	0	0
RV and marine finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, unpaid principle	0	0
Impaired loans and leases with no related allowance, average balance	0	0
Impaired loans and leases with no related allowance, interest income recognized	0	0
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	299,606	255,801
Impaired loans and leases with no related allowance, unpaid principle	358,712	279,551
Impaired loans and leases with no related allowance, average balance	292,567	114,389
Impaired loans and leases with no related allowance, interest income recognized	9,401	2,584
Impaired loans and leases with an allowance recorded, ending balance	406,243	246,249
Impaired loans and leases with an allowance recorded, unpaid principle	448,121	274,203
Impaired loans and leases with an allowance recorded, related allowance	22,259	21,916
Impaired Financing Receivable, Average Recorded Investment	594,165	382,051
Impaired loans and leases with an allowance recorded, average balance	301,598	267,662
Impaired loans and leases with an allowance recorded, interest income recognized	8,124	15,110
Considered impaired due to TDR status	293,000	91,000
Impaired Financing Receivable, Recorded Investment	705,849	502,050
Impaired Financing Receivable, Unpaid Principal Balance	806,833	553,754
Impaired Financing Receivable, Interest Income, Accrual Method	17,525	17,694
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	88,817	68,260
Impaired loans and leases with no related allowance, unpaid principle	126,152	125,814
Impaired loans and leases with no related allowance, average balance	73,040	88,173
Impaired loans and leases with no related allowance, interest income recognized	4,191	7,199
Impaired loans and leases with an allowance recorded, ending balance	97,238	90,475
Impaired loans and leases with an allowance recorded, unpaid principle	107,512	104,930
Impaired loans and leases with an allowance recorded, related allowance	3,434	8,114
Impaired Financing Receivable, Average Recorded Investment	141,905	202,192
Impaired loans and leases with an allowance recorded, average balance	68,865	114,019
Impaired loans and leases with an allowance recorded, interest income recognized	2,978	4,833
Considered impaired due to TDR status	81,000	35,000
Impaired Financing Receivable, Recorded Investment	186,055	158,735
Impaired Financing Receivable, Unpaid Principal Balance	233,664	230,744
Impaired Financing Receivable, Interest Income, Accrual Method	7,169	12,032
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	0	0
Impaired loans and leases with an allowance recorded, ending balance	30,961	31,304
Impaired loans and leases with an allowance recorded, unpaid principle	31,298	31,878
Impaired loans and leases with an allowance recorded, related allowance	1,850	1,779
Impaired Financing Receivable, Average Recorded Investment	31,722	30,163
Impaired loans and leases with an allowance recorded, average balance	31,722	30,163
Impaired loans and leases with an allowance recorded, interest income recognized	2,162	2,224
Impaired Financing Receivable, Recorded Investment	30,961	31,304
Impaired Financing Receivable, Unpaid Principal Balance	31,298	31,878
Impaired Financing Receivable, Interest Income, Accrual Method	2,162	2,224
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	0	0
Impaired loans and leases with an allowance recorded, ending balance	319,404	248,839
Impaired loans and leases with an allowance recorded, unpaid principle	352,722	284,957
Impaired loans and leases with an allowance recorded, related allowance	15,032	16,242
Impaired Financing Receivable, Average Recorded Investment	277,692	292,014
Impaired loans and leases with an allowance recorded, average balance	277,692	292,014
Impaired loans and leases with an allowance recorded, interest income recognized	13,410	13,092
Impaired Financing Receivable, Recorded Investment	319,404	248,839
Impaired Financing Receivable, Unpaid Principal Balance	352,722	284,957
Impaired Financing Receivable, Interest Income, Accrual Method	13,410	13,092
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	0	0
Impaired loans and leases with an allowance recorded, ending balance	327,753	368,449
Impaired loans and leases with an allowance recorded, unpaid principle	363,099	411,114
Impaired loans and leases with an allowance recorded, related allowance	12,849	16,938
Impaired Financing Receivable, Average Recorded Investment	348,158	373,573
Impaired loans and leases with an allowance recorded, average balance	348,158	373,573
Impaired loans and leases with an allowance recorded, interest income recognized	11,945	12,889
TDR government guarantee	29,000	29,000
Impaired Financing Receivable, Recorded Investment	327,753	368,449
Impaired Financing Receivable, Unpaid Principal Balance	363,099	411,114
Impaired Financing Receivable, Interest Income, Accrual Method	11,945	12,889
Consumer | RV and marine finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	0	0
Impaired loans and leases with an allowance recorded, ending balance	0	0
Impaired loans and leases with an allowance recorded, unpaid principle	0	0
Impaired loans and leases with an allowance recorded, related allowance	0	0
Impaired Financing Receivable, Average Recorded Investment	0	0
Impaired loans and leases with an allowance recorded, average balance	0	0
Impaired loans and leases with an allowance recorded, interest income recognized	0	0
Impaired Financing Receivable, Recorded Investment	0	0
Impaired Financing Receivable, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Interest Income, Accrual Method	0	0
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans and leases with no related allowance, ending balance	0	52
Impaired loans and leases with no related allowance, unpaid principle	0	101
Impaired loans and leases with no related allowance, average balance	0	51
Impaired loans and leases with no related allowance, interest income recognized	0	17
Impaired loans and leases with an allowance recorded, ending balance	3,897	4,640
Impaired loans and leases with an allowance recorded, unpaid principle	3,897	4,649
Impaired loans and leases with an allowance recorded, related allowance	260	176
Impaired Financing Receivable, Average Recorded Investment	4,481	4,726
Impaired loans and leases with an allowance recorded, average balance	4,481	4,675
Impaired loans and leases with an allowance recorded, interest income recognized	233	254
Impaired Financing Receivable, Recorded Investment	3,897	4,692
Impaired Financing Receivable, Unpaid Principal Balance	3,897	4,750
Impaired Financing Receivable, Interest Income, Accrual Method	$ 233	$ 271

XML

LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	5,053	6,191
Post-modification Outstanding Balance (2)	$ 677,714,000	$ 894,700,000
Financial effects of modification	$ (11,638,000)	$ 14,533,000
Commercial | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	4	13
Post-modification Outstanding Balance (2)	$ 161,000	$ 8,243,000
Financial effects of modification	5,000	$ (1,042,000)
Commercial | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract		765
Post-modification Outstanding Balance (2)	490,488,000	$ 524,356,000
Financial effects of modification	$ (8,751,000)	$ 5,853,000
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	20	16
Post-modification Outstanding Balance (2)	$ 1,951,000	$ 29,842,000
Financial effects of modification	$ (14,000)	$ 449,000
Commercial | Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	896	794
Post-modification Outstanding Balance (2)	$ 492,600,000	$ 562,441,000
Financial effects of modification	$ (8,760,000)	$ 7,344,000
Commercial | Commercial and Industrial | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	872
Commercial | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	117	158
Post-modification Outstanding Balance (2)	$ 69,730,000	$ 143,967,000
Financial effects of modification	$ (1,852,000)	$ 1,283,000
Commercial | Commercial Real Estate | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	2	4
Post-modification Outstanding Balance (2)	$ 223,000	$ 2,249,000
Financial effects of modification	$ 0	$ 4,000
Commercial | Commercial Real Estate | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	111	143
Post-modification Outstanding Balance (2)	$ 69,192,000	$ 141,238,000
Financial effects of modification	$ (1,868,000)	$ 1,249,000
Commercial | Commercial Real Estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	4	11
Post-modification Outstanding Balance (2)	$ 315,000	$ 480,000
Financial effects of modification	$ 16,000	$ (30,000)
Consumer | Automobile
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	2,669	2,558
Post-modification Outstanding Balance (2)	$ 23,172,000	$ 19,779,000
Financial effects of modification	$ (1,477,000)	$ (961,000)
Consumer | Automobile | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	17	41
Post-modification Outstanding Balance (2)	$ 212,000	$ 121,000
Financial effects of modification	$ (12,000)	$ (5,000)
Consumer | Automobile | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	1,593	1,591
Post-modification Outstanding Balance (2)	$ 14,542,000	$ 12,268,000
Financial effects of modification	$ (1,065,000)	$ (533,000)
Consumer | Automobile | Chapter 7 bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	1,059	926
Post-modification Outstanding Balance (2)	$ 8,418,000	$ 7,390,000
Financial effects of modification	$ (400,000)	$ (423,000)
Consumer | Automobile | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	915	1,976
Post-modification Outstanding Balance (2)	$ 44,969,000	$ 93,277,000
Financial effects of modification	$ (780,000)	$ (6,207,000)
Consumer | Home Equity | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	55	55
Post-modification Outstanding Balance (2)	$ 2,928,000	$ 4,399,000
Financial effects of modification	$ (110,000)	$ (161,000)
Consumer | Home Equity | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	578	1,591
Post-modification Outstanding Balance (2)	$ 32,006,000	$ 79,023,000
Financial effects of modification	$ (3,709,000)	$ (10,639,000)
Consumer | Home Equity | Chapter 7 bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	282	330
Post-modification Outstanding Balance (2)	$ 10,035,000	$ 9,855,000
Financial effects of modification	$ (2,819,000)	$ (4,271,000)
Consumer | Home Equity | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	442	683
Post-modification Outstanding Balance (2)	$ 46,596,000	$ 74,873,000
Financial effects of modification	$ (1,754,000)	$ (680,000)
Consumer | Residential Mortgage | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	13	15
Post-modification Outstanding Balance (2)	$ 1,287,000	$ 1,565,000
Financial effects of modification	$ (18,000)	$ (61,000)
Consumer | Residential Mortgage | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	363	518
Post-modification Outstanding Balance (2)	$ 39,170,000	$ 57,859,000
Financial effects of modification	$ (1,650,000)	$ (455,000)
Consumer | Residential Mortgage | Chapter 7 bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	62	139
Post-modification Outstanding Balance (2)	$ 5,715,000	$ 14,183,000
Financial effects of modification	$ 86,000	$ 164,000
Consumer | Residential Mortgage | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	4	11
Post-modification Outstanding Balance (2)	$ 424,000	$ 1,266,000
Financial effects of modification	$ 0	$ 0
Consumer | RV and marine finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | RV and marine finance | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | RV and marine finance | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | RV and marine finance | Chapter 7 bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | RV and marine finance | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0
Consumer | Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	14	22
Post-modification Outstanding Balance (2)	$ 647,000	$ 363,000
Financial effects of modification	$ (31,000)	$ (20,000)
Consumer | Other Consumer | Interest rate reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	1
Post-modification Outstanding Balance (2)	$ 0	$ 96,000
Financial effects of modification	$ 0	$ (3,000)
Consumer | Other Consumer | Amortization or maturity date change
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	6	10
Post-modification Outstanding Balance (2)	$ 575,000	$ 198,000
Financial effects of modification	$ (24,000)	$ (8,000)
Consumer | Other Consumer | Chapter 7 bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	8	11
Post-modification Outstanding Balance (2)	$ 72,000	$ 69,000
Financial effects of modification	$ (7,000)	$ (9,000)
Consumer | Other Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Post-modification Outstanding Balance (2)	$ 0	$ 0
Financial effects of modification	$ 0	$ 0

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
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	$ 5,000
Nonmarketable equity securities
Schedule of Available-for-sale Securities [Line Items]
Stock issued by Federal Reserve Banks included in other securities	299	$ 176
Nonmarketable equity securities | Federal Home Loan Bank of Cincinnati
Schedule of Available-for-sale Securities [Line Items]
Federal home loan bank stock	$ 249	$ 157

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortized Cost:
Amortized cost, under 1 year	$ 223,789	$ 333,891
Amortized cost, 1-5 years	1,147,510	1,184,454
Amortized cost, 6-10 years	1,956,893	1,648,808
Amortized cost, over 10 years	11,884,812	5,259,855
Amortized cost	15,776,855	8,770,923
Fair Value:
Fair value, under 1 year	221,495	332,980
Amortized cost, 1-5 years	1,149,460	1,189,455
Fair value, 6-10 years	1,962,345	1,645,759
Amortized cost, over 10 years	11,665,245	5,263,063
Fair Value	15,562,837	8,775,441
Nonmarketable equity securities
Amortized Cost:
Amortized cost	547,704	332,786
Fair Value:
Fair Value	547,704	332,786
Mutual funds
Amortized Cost:
Amortized cost	15,286	10,604
Fair Value:
Fair Value	15,286	10,604
Marketable equity securities
Amortized Cost:
Amortized cost	861	525
Fair Value:
Fair Value	$ 1,302	$ 794

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains/(Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 15,776,855	$ 8,770,923
Gross Gains	47,626	88,169
Gross Losses	(261,644)	(83,651)
Fair Value	15,562,837	8,775,441
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,480	5,457
Gross Gains	17	15
Gross Losses	0	0
Fair Value	5,497	5,472
Federal agencies: Mortgage-backed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,851,461	4,505,318
Gross Gains	12,548	30,078
Gross Losses	(190,667)	(13,708)
Fair Value	10,673,342	4,521,688
Federal agencies: Other agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	73,012	115,076
Gross Gains	536	888
Gross Losses	(6)	(51)
Fair Value	73,542	115,913
Total U.S. Government backed agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,929,953	4,625,851
Gross Gains	13,101	30,981
Gross Losses	(190,673)	(13,759)
Fair Value	10,752,381	4,643,073
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,260,428	2,431,943
Gross Gains	28,431	51,558
Gross Losses	(38,802)	(27,105)
Fair Value	3,250,057	2,456,396
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	824,124	901,059
Gross Gains	1,492	535
Gross Losses	(32,135)	(40,181)
Fair Value	793,481	861,413
Corporate debt
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	194,537	464,207
Gross Gains	4,161	4,824
Gross Losses	(15)	(2,554)
Fair Value	198,683	466,477
Other securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	567,813	347,863
Gross Gains	441	271
Gross Losses	(19)	(52)
Fair Value	$ 568,235	$ 348,082

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	$ 10,687,088	$ 2,987,605
Over 12 Months, Fair Value	494,614	563,431
Total, Fair Value	11,181,702	3,551,036
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(221,568)	(34,876)
Over 12 Months, Unrealized Losses	(40,076)	(48,775)
Total, Unrealized Losses	(261,644)	(83,651)
Federal agencies: Mortgage-backed
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	8,908,470	1,658,516
Over 12 Months, Fair Value	41,706	84,147
Total, Fair Value	8,950,176	1,742,663
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(189,318)	(11,341)
Over 12 Months, Unrealized Losses	(1,349)	(2,367)
Total, Unrealized Losses	(190,667)	(13,708)
Federal agencies: Other agencies
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	924	37,982
Over 12 Months, Fair Value	0	0
Total, Fair Value	924	37,982
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(6)	(51)
Over 12 Months, Unrealized Losses	0	0
Total, Unrealized Losses	(6)	(51)
Total U.S. Government backed agencies
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	8,909,394	1,696,498
Over 12 Months, Fair Value	41,706	84,147
Total, Fair Value	8,951,100	1,780,645
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(189,324)	(11,392)
Over 12 Months, Unrealized Losses	(1,349)	(2,367)
Total, Unrealized Losses	(190,673)	(13,759)
Municipal securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	1,412,152	570,916
Over 12 Months, Fair Value	272,292	248,204
Total, Fair Value	1,684,444	819,120
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(29,175)	(15,992)
Over 12 Months, Unrealized Losses	(9,627)	(11,113)
Total, Unrealized Losses	(38,802)	(27,105)
Asset-backed securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	361,185	552,275
Over 12 Months, Fair Value	178,924	207,639
Total, Fair Value	540,109	759,914
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(3,043)	(5,791)
Over 12 Months, Unrealized Losses	(29,092)	(34,390)
Total, Unrealized Losses	(32,135)	(40,181)
Corporate debt
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	3,567	167,144
Over 12 Months, Fair Value	200	21,965
Total, Fair Value	3,767	189,109
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(15)	(1,673)
Over 12 Months, Unrealized Losses	0	(881)
Total, Unrealized Losses	(15)	(2,554)
Other securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months, Fair Value	790	772
Over 12 Months, Fair Value	1,492	1,476
Total, Fair Value	2,282	2,248
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	(11)	(28)
Over 12 Months, Unrealized Losses	(8)	(24)
Total, Unrealized Losses	$ (19)	$ (52)

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Realized Securities Gains (Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Gross gains on sales of securities	$ 23,095	$ 6,730	$ 17,729
Gross (losses) on sales of securities	(21,060)	(3,546)	(175)
Net gain (loss) on sales of securities	$ 2,035	$ 3,184	$ 17,554

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Collateralized Debt Obligation Securities (Details) $ in Thousands	Dec. 31, 2016 USD ($) issuer	Dec. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Unrealized Loss	$ (261,644)	$ (83,651)
Collateralized Debt Obligations
Schedule of Available-for-sale Securities [Line Items]
Par Value	137,197	179,574
Amortized Cost	101,210	131,991
Fair Value	76,003	100,338
Unrealized Loss	$ (25,207)	$ (31,654)
Collateralized Debt Obligations | Alesco II
Schedule of Available-for-sale Securities [Line Items]
Number of Issuers Currently Performing | issuer	30
Number of Issuers Currently Remaining | issuer	32
Collateralized Debt Obligations | ICONS
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 18,594
Amortized Cost	18,594
Fair Value	15,307
Unrealized Loss	$ (3,287)
Number of Issuers Currently Performing | issuer	19
Number of Issuers Currently Remaining | issuer	21
Actual Deferrals and Defaults as a % of Original Collateral	7.00%
Expected Defaults as a % of Remaining Performing Collateral	13.00%
Available-for-sale Securities, Excess Subordination	54.00%
Collateralized Debt Obligations | MM Comm III
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 4,573
Amortized Cost	4,369
Fair Value	3,618
Unrealized Loss	$ (751)
Number of Issuers Currently Performing | issuer	5
Number of Issuers Currently Remaining | issuer	8
Actual Deferrals and Defaults as a % of Original Collateral	5.00%
Expected Defaults as a % of Remaining Performing Collateral	6.00%
Available-for-sale Securities, Excess Subordination	38.00%
Collateralized Debt Obligations | Pre TSL IX
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 5,000
Amortized Cost	3,955
Fair Value	3,253
Unrealized Loss	$ (702)
Number of Issuers Currently Performing | issuer	27
Number of Issuers Currently Remaining | issuer	38
Actual Deferrals and Defaults as a % of Original Collateral	16.00%
Expected Defaults as a % of Remaining Performing Collateral	9.00%
Available-for-sale Securities, Excess Subordination	8.00%
Collateralized Debt Obligations | Pre TSL XI
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 25,000
Amortized Cost	19,576
Fair Value	15,767
Unrealized Loss	$ (3,809)
Number of Issuers Currently Performing | issuer	42
Number of Issuers Currently Remaining | issuer	55
Actual Deferrals and Defaults as a % of Original Collateral	14.00%
Expected Defaults as a % of Remaining Performing Collateral	8.00%
Available-for-sale Securities, Excess Subordination	14.00%
Collateralized Debt Obligations | Pre TSL XIII
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 27,530
Amortized Cost	19,106
Fair Value	17,146
Unrealized Loss	$ (1,960)
Number of Issuers Currently Performing | issuer	47
Number of Issuers Currently Remaining | issuer	56
Actual Deferrals and Defaults as a % of Original Collateral	9.00%
Expected Defaults as a % of Remaining Performing Collateral	11.00%
Available-for-sale Securities, Excess Subordination	29.00%
Collateralized Debt Obligations | Reg Diversified
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 25,500
Amortized Cost	4,610
Fair Value	1,752
Unrealized Loss	$ (2,858)
Number of Issuers Currently Performing | issuer	23
Number of Issuers Currently Remaining | issuer	39
Actual Deferrals and Defaults as a % of Original Collateral	35.00%
Expected Defaults as a % of Remaining Performing Collateral	8.00%
Available-for-sale Securities, Excess Subordination	0.00%
Collateralized Debt Obligations | Soloso
Schedule of Available-for-sale Securities [Line Items]
Number of Issuers Currently Performing | issuer	30
Number of Issuers Currently Remaining | issuer	40
Collateralized Debt Obligations | Tropic III [Member]
Schedule of Available-for-sale Securities [Line Items]
Par Value	$ 31,000
Amortized Cost	31,000
Fair Value	19,160
Unrealized Loss	$ (11,840)
Actual Deferrals and Defaults as a % of Original Collateral	16.00%
Expected Defaults as a % of Remaining Performing Collateral	7.00%
Available-for-sale Securities, Excess Subordination	42.00%

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AVAILABLE-FOR-SALE AND OTHER SECURITIES - Security Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	$ (2,119)	$ (2,440)	$ 0
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance, beginning of year	18,368	30,869
Reductions from sales	(8,690)	(14,941)
Credit losses not previously recognized	2,119	0
Additional credit losses	0	2,440
Balance, end of year	11,797	18,368	30,869
Collateralized Debt Obligations
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	0	(2,440)	0
Municipal Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Impairment losses recognized in earnings on available-for-sale securities	$ (2,119)	$ 0	$ 0

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HELD-TO-MATURITY SECURITIES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Held-to-maturity Securities [Abstract]
Available-for-sale securities transferred to held-to-maturity securities	$ 3,000,000,000
Unrealized net losses recognized in OCI at time of transfer of available-for-sale securities transferred to held-to-maturity securities	58,000,000
Other than temporary impairment losses, held-to-maturity	$ 0	$ 0

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HELD-TO-MATURITY SECURITIES - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Rolling Maturity [Abstract]
Amortized Cost	$ 7,806,939	$ 6,159,590
Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Held-to-maturity Securities, Fair Value	7,787,268	6,135,458
Federal agencies: Mortgage-backed
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Rolling Maturity [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	41,261	25,909
Held-to-maturity Securities, Over 10 years	7,157,083	5,506,592
Amortized Cost	7,198,344	5,532,501
Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	0	0
Fair Value, 6-10 years	40,791	25,227
Fair Value, Over 10 Years	7,139,943	5,484,407
Held-to-maturity Securities, Fair Value	7,180,734	5,509,634
Federal agencies: Other agencies
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Rolling Maturity [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	398,341	283,960
Held-to-maturity Securities, Over 10 years	204,083	336,092
Amortized Cost	602,424	620,052
Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Fair Value, Under 1 year	0	0
Fair Value, 1-5 years	0	0
Fair Value, 6-10 years	399,452	284,907
Fair Value, Over 10 Years	201,180	334,004
Held-to-maturity Securities, Fair Value	600,632	618,911
Total U.S. Government backed agencies
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Rolling Maturity [Abstract]
Amortized Cost	7,800,768	6,152,553
Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Held-to-maturity Securities, Fair Value	7,781,366	6,128,545
Municipal securities
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Rolling Maturity [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	6,171	7,037
Amortized Cost	6,171	7,037
Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling 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	5,902	6,913
Held-to-maturity Securities, Fair Value	$ 5,902	$ 6,913

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HELD-TO-MATURITY SECURITIES - Schedule of Amortized Cost, Gross Unrealized Gains and Losses, & Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Held-to-maturity Securities [Abstract]
Amortized Cost	$ 7,806,939	$ 6,159,590
Unrealized Gross Gains	22,573	16,282
Unrealized Gross Losses	(42,244)	(40,414)
Fair Value	7,787,268	6,135,458
Federal agencies: Mortgage-backed
Held-to-maturity Securities [Abstract]
Amortized Cost	7,198,344	5,532,501
Unrealized Gross Gains	20,883	14,637
Unrealized Gross Losses	(38,493)	(37,504)
Fair Value	7,180,734	5,509,634
Federal agencies: Other agencies
Held-to-maturity Securities [Abstract]
Amortized Cost	602,424	620,052
Unrealized Gross Gains	1,690	1,645
Unrealized Gross Losses	(3,482)	(2,786)
Fair Value	600,632	618,911
Total U.S. Government backed agencies
Held-to-maturity Securities [Abstract]
Amortized Cost	7,800,768	6,152,553
Unrealized Gross Gains	22,573	16,282
Unrealized Gross Losses	(41,975)	(40,290)
Fair Value	7,781,366	6,128,545
Municipal securities
Held-to-maturity Securities [Abstract]
Amortized Cost	6,171	7,037
Unrealized Gross Gains	0	0
Unrealized Gross Losses	(269)	(124)
Fair Value	$ 5,902	$ 6,913

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HELD-TO-MATURITY SECURITIES - Schedule of Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value:
Less Than Twelve Months, Fair Value	$ 3,274,469	$ 4,118,300
Over Twelve Months, Fair Value	186,226	533,432
Fair Value	3,460,695	4,651,732
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss:
Less than 12 Months, Unrealized Losses	(35,221)	(28,107)
Over 12 Months, Unrealized Losses	(7,023)	(12,307)
Unrealized Losses	(42,244)	(40,414)
Federal agencies: Mortgage-backed
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value:
Less Than Twelve Months, Fair Value	2,855,360	3,692,890
Over Twelve Months, Fair Value	186,226	519,872
Fair Value	3,041,586	4,212,762
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss:
Less than 12 Months, Unrealized Losses	(31,470)	(25,418)
Over 12 Months, Unrealized Losses	(7,023)	(12,086)
Unrealized Losses	(38,493)	(37,504)
Federal agencies: Other agencies
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value:
Less Than Twelve Months, Fair Value	413,207	425,410
Over Twelve Months, Fair Value	0	6,647
Fair Value	413,207	432,057
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss:
Less than 12 Months, Unrealized Losses	(3,482)	(2,689)
Over 12 Months, Unrealized Losses	0	(97)
Unrealized Losses	(3,482)	(2,786)
Total U.S. Government backed agencies
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value:
Less Than Twelve Months, Fair Value	3,268,567	4,118,300
Over Twelve Months, Fair Value	186,226	526,519
Fair Value	3,454,793	4,644,819
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss:
Less than 12 Months, Unrealized Losses	(34,952)	(28,107)
Over 12 Months, Unrealized Losses	(7,023)	(12,183)
Unrealized Losses	(41,975)	(40,290)
Municipal securities
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value:
Less Than Twelve Months, Fair Value	5,902	0
Over Twelve Months, Fair Value	0	6,913
Fair Value	5,902	6,913
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss:
Less than 12 Months, Unrealized Losses	(269)	0
Over 12 Months, Unrealized Losses	0	(124)
Unrealized Losses	$ (269)	$ (124)

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LOAN SALES AND SECURITIZATIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
2015-1 Automobile Trust
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction	$ 1,000
Residential Mortgage
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Servicing, late and other ancillary fees included in mortgage banking income		$ 50,000	$ 47,000	$ 44,000
Unpaid principal balance of third party serviced loans		18,900,000	16,200,000	15,600,000
Pretax gains resulting from above loan sales		96,585	83,148	57,590
Automobile
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Servicing, late and other ancillary fees included in mortgage banking income		9,000	5,000	8,000
Unpaid principal balance of third party serviced loans		1,700,000	900,000	800,000
Total of automobile loans transferred In securitization transaction				0
Proceeds from new transfers				0
Automobile | 2015-1 Automobile Trust
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction			750,000
Proceeds from new transfers			780,117
Commercial
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Servicing, late and other ancillary fees included in mortgage banking income		9,000	8,000	7,000
Unpaid principal balance of third party serviced loans		$ 1,100,000	$ 1,000,000	$ 900,000

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio (Details) - Residential Mortgage - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Residential mortgage loans sold with servicing retained	$ 3,632,024	$ 3,322,723	$ 2,330,060
Pretax gains resulting from above loan sales	$ 96,585	$ 83,148	$ 57,590

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method (Details) - Residential Mortgage - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Fair Value, Amount [Roll Forward]
Fair value, beginning of year	$ 17,585	$ 22,786
Time decay	(950)	(1,295)
Payoffs	(1,827)	(3,031)
Changes in valuation inputs or assumptions	(1,061)	(875)
Fair value, end of year	$ 13,747	$ 17,585
Sensitivity Analysis Fair Value Carrying Method
Servicing Asset at Fair Value, Amount [Roll Forward]
Weighted-average life (years)	5 years 8 months	4 years 7 months

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Amortization Method (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of year	$ 225,578	$ 189,237
Residential Mortgage
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of year	143,133	132,812
New servicing assets created	37,813	35,407
Servicing assets acquired	15,317	0
Impairment recovery (charge)	(1,918)	(2,732)
Amortization and other	(25,715)	(22,354)
Carrying value, end of year	172,466	143,133
Fair value, end of year	$ 172,779	$ 143,435
Residential Mortgage | Sensitivity Analysis Amortization Carrying Method
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Weighted-average life (years)	7 years 2 months	5 years 11 months

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Fair Value Method Assumptions (Details) - Residential Mortgage - Sensitivity Analysis Fair Value Carrying Method - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Constant prepayment rate (annualized)	10.90%	14.70%
Constant prepayment rate (annualized), Decline in fair value due to 10% adverse change	$ (501)	$ (864)
Constant prepayment rate (annualized), Decline in fair value due to 20% adverse change	$ (970)	$ (1,653)
Spread over forward interest rate swap rates	0.00%	5.00%
Spread over forward interest rate swap rates, Decline in fair value due to 10% adverse change	$ (454)	$ (559)
Spread over forward interest rate swap rates, Decline in fair value due to 20% adverse change	$ (879)	$ (1,083)

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LOAN SALES AND SECURITIZATIONS - Residential Mortgage Portfolio, MSRs Amortization Method Assumptions (Details) - Sensitivity Analysis Amortization Carrying Method - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Automobile
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Constant prepayment rate (annualized)	19.98%	18.36%
Constant prepayment rate (annualized), Decline in fair value due to 10% adverse change	$ (1,047)	$ (500)
Constant prepayment rate (annualized), Decline in fair value due to 20% adverse change	$ (2,026)	$ (895)
Spread over forward interest rate swap rates	0.00%	5.00%
Spread over forward interest rate swap rates, Decline in fair value due to 10% adverse change	$ (26)	$ (10)
Spread over forward interest rate swap rates, Decline in fair value due to 20% adverse change	$ (53)	$ (19)
Residential Mortgage
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Constant prepayment rate (annualized)	7.80%	11.10%
Constant prepayment rate (annualized), Decline in fair value due to 10% adverse change	$ (4,510)	$ (5,543)
Constant prepayment rate (annualized), Decline in fair value due to 20% adverse change	$ (8,763)	$ (10,648)
Spread over forward interest rate swap rates	0.00%	9.00%
Spread over forward interest rate swap rates, Decline in fair value due to 10% adverse change	$ (5,259)	$ (4,662)
Spread over forward interest rate swap rates, Decline in fair value due to 20% adverse change	$ (10,195)	$ (9,017)

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LOAN SALES AND SECURITIZATIONS - Automobile Loans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Automobile
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction					$ 0
Proceeds from new transfers					0
Gain (Loss) on Sale of Mortgage Loans			$ 5,632	$ 5,333	0
New servicing assets created					$ 0
Trust 2016 Unconsolidated
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction	$ 2,000
Trust 2016 Unconsolidated | Automobile
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction			1,500,000
Proceeds from new transfers			1,551,679
New servicing assets created			$ 15,670
2015-1 Automobile Trust
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction		$ 1,000
2015-1 Automobile Trust | Automobile
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Total of automobile loans transferred In securitization transaction				750,000
Proceeds from new transfers				780,117
New servicing assets created				$ 11,180

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LOAN SALES AND SECURITIZATIONS - Automobile Loans, MSRs Amortization Method (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of year	$ 225,578	$ 189,237
Automobile
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of year	8,771	6,898
New servicing assets created			$ 0
Amortization and other	(6,156)	(9,307)
Carrying value, end of year	18,285	8,771	$ 6,898
Fair value, end of year	$ 18,388	$ 9,127
Automobile | Sensitivity Analysis Amortization Carrying Method
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Weighted-average life (years)	4 years 2 months	3 years 2 months

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LOAN SALES AND SECURITIZATIONS - Automobile Loans, MSRs Amortization Method Assumptions (Details) - Automobile - Sensitivity Analysis Amortization Carrying Method - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Constant prepayment rate (annualized)	19.98%	18.36%
Constant prepayment rate (annualized), Decline in fair value due to 10% adverse change	$ (1,047)	$ (500)
Constant prepayment rate (annualized), Decline in fair value due to 20% adverse change	$ (2,026)	$ (895)
Spread over forward interest rate swap rates	0.00%	5.00%
Spread over forward interest rate swap rates, Decline in fair value due to 10% adverse change	$ (26)	$ (10)
Spread over forward interest rate swap rates, Decline in fair value due to 20% adverse change	$ (53)	$ (19)

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LOAN SALES AND SECURITIZATIONS - Small Business Association Portfolio (Details) - Commercial - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Residential mortgage loans sold with servicing retained	$ 269,923	$ 232,848	$ 214,760
Pretax gains resulting from above loan sales	$ 20,516	$ 18,626	$ 24,579

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LOAN SALES AND SECURITIZATIONS - Small Business Association, MSRs Amortization Method (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Fair value, end of year	$ 225,578	$ 189,237
Commercial
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Carrying value, beginning of year	19,747	18,536
New servicing assets created	8,705	8,012
Amortization and other	(7,372)	(6,801)
Carrying value, end of year	21,080	19,747
Fair value, end of year	$ 24,270	$ 22,649
Commercial | Sensitivity Analysis Amortization Carrying Method
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Weighted-average life (years)	3 years 3 months 18 days	3 years 3 months 18 days

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LOAN SALES AND SECURITIZATIONS - Small Business Association, MSRs Amortization Method Assumptions (Details) - Commercial - Sensitivity Analysis Amortization Carrying Method - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Constant prepayment rate (annualized)	7.40%	7.60%
Constant prepayment rate (annualized), Decline in fair value due to 10% adverse change	$ (324)	$ (313)
Constant prepayment rate (annualized), Decline in fair value due to 20% adverse change	$ (644)	$ (622)
Spread over forward interest rate swap rates	15.00%	15.00%
Spread over forward interest rate swap rates, Decline in fair value due to 10% adverse change	$ (1,270)	$ (610)
Spread over forward interest rate swap rates, Decline in fair value due to 20% adverse change	$ (1,870)	$ (1,194)

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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2016	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill by business segment
Beginning Balance		$ 522,541	$ 676,869	$ 522,541
Goodwill acquired during the period			1,320,818	155,828
Adjustments			4,838	1,500
Impairment			0	0	$ (3,000)
Ending Balance			1,992,849	676,869	522,541
Operating Segments | Consumer & Business Banking
Goodwill by business segment
Beginning Balance		368,097	368,097	368,097
Goodwill acquired during the period			1,030,046	0
Adjustments			0	0
Ending Balance			1,398,143	368,097	368,097
Operating Segments | Commercial Banking
Goodwill by business segment
Beginning Balance		59,594	215,422	59,594
Goodwill acquired during the period			237,542	155,828
Adjustments			0	0
Ending Balance			452,964	215,422	59,594
Operating Segments | CREVF
Goodwill by business segment
Beginning Balance		0	0	0
Goodwill acquired during the period			0	0
Adjustments			0	0
Ending Balance			0	0	0
Operating Segments | RBHPCG
Goodwill by business segment
Beginning Balance		90,012	88,512	90,012
Goodwill acquired during the period			53,230	0
Adjustments			0	(1,500)
Ending Balance			141,742	88,512	90,012
Operating Segments | Home Lending
Goodwill by business segment
Beginning Balance		0	0	0
Goodwill acquired during the period			0	0
Adjustments			0	0
Impairment		(3,000)
Ending Balance			0	0	0
Treasury / Other
Goodwill by business segment
Beginning Balance		$ 4,838	4,838	4,838
Goodwill acquired during the period			0	0
Adjustments	$ (4,838)			0
Ending Balance			$ 0	$ 4,838	$ 4,838

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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 1,992,849	$ 676,869	$ 522,541
Contribution of intangible asset	$ 14,000
Total other intangible assets, gross carrying amount		519,725	541,316
Total other intangible assets, accumulated amortization		(117,267)	(486,338)
Total other intangible assets, net of carrying value		402,458	54,978
Goodwill, Other Increase (Decrease)		(4,838)	(1,500)
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, gross carrying amount		324,619	400,058
Total other intangible assets, accumulated amortization		(26,778)	(384,606)
Total other intangible assets, net of carrying value		297,841	15,452
Customer relationship
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, gross carrying amount		194,956	116,094
Total other intangible assets, accumulated amortization		(90,383)	(76,656)
Total other intangible assets, net of carrying value		104,573	39,438
Other
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets, gross carrying amount		150	25,164
Total other intangible assets, accumulated amortization		(106)	(25,076)
Total other intangible assets, net of carrying value		$ 44	$ 88

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GOODWILL AND OTHER INTANGIBLE ASSETS - Future Amortization of Intangible Assets (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2016	$ 56,333
2017	53,161
2018	50,446
2019	42,291
2020	$ 39,783

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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) segments	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Number of reporting segments | segments		5
Goodwill		$ 1,992,849	$ 676,869	$ 522,541
Other intangible assets		402,458	54,978
Goodwill acquired during the period		1,320,818	155,828
Impairment of goodwill		0	0	3,000
Macquarie Equipment Finance, Inc
Business Acquisition [Line Items]
Goodwill	$ 156,000
Other intangible assets	8,000
Operating Segments | Home Lending
Business Acquisition [Line Items]
Goodwill		0	0	$ 0
Goodwill acquired during the period		$ 0	$ 0
Impairment of goodwill	$ 3,000

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PREMISES AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and equipment, gross	$ 1,708,772	$ 1,401,368
Less accumulated depreciation and amortization	(893,264)	(780,828)
Net premises and equipment	815,508	620,540
Property Plant and Equipment Income Statement Disclosures [Abstract]
Total depreciation and amortization of premises and equipment	125,856	85,805	$ 82,296
Rental income credited to occupancy expense	12,512	12,563	$ 11,556
Land and land improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and equipment, gross	199,193	140,414
Buildings
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and equipment, gross	523,181	366,963
Leasehold improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and equipment, gross	265,384	246,222
Equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and equipment, gross	$ 721,014	$ 647,769

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SHORT-TERM BORROWINGS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Short-term Debt [Line Items]
Total short-term borrowings	$ 3,692,654	$ 615,279
Federal funds purchased and securities sold under agreements to repurchase
Short-term Debt [Line Items]
Total short-term borrowings	1,248,089	601,272
Federal Home Loan Bank advances
Short-term Debt [Line Items]
Total short-term borrowings	2,425,000	0
Other borrowings
Short-term Debt [Line Items]
Total short-term borrowings	$ 19,565	$ 14,007

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LONG-TERM DEBT - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term borrowings	$ 8,309,159	$ 7,041,364
Subordinated Notes
Debt Instrument [Line Items]
Long-term borrowings	4,821,846	5,540,135
Subordinated Notes | 3.86% Huntington National Bank subordinated notes due 2026
Debt Instrument [Line Items]
Long-term borrowings	239,293	0
Subordinated Notes | 3.86% Huntington National Bank subordinated notes due 2026
Debt Instrument [Line Items]
Long-term borrowings	$ 131,910	136,227
Stated rate	6.67%
Subordinated Notes | 6.67% Huntington National Bank subordinated notes due 2018
Debt Instrument [Line Items]
Long-term borrowings	$ 0	103,357
Stated rate	5.59%
Subordinated Notes | 5.45% Huntington National Bank subordinated notes due 2019
Debt Instrument [Line Items]
Long-term borrowings	$ 81,155	83,833
Stated rate	5.45%
Senior Notes | 1.43% Huntington National Bank senior note due 2019
Debt Instrument [Line Items]
Long-term borrowings	$ 499,445	500,416
Stated rate	2.23%
Senior Notes | 2.24% Huntington National Bank senior notes due 2018
Debt Instrument [Line Items]
Long-term borrowings	$ 843,568	841,313
Stated rate	2.24%
Senior Notes | 2.10% Huntington National Bank senior notes due 2018
Debt Instrument [Line Items]
Long-term borrowings	$ 747,170	745,894
Stated rate	2.10%
Senior Notes | 1.75% Huntington National Bank senior notes due 2018
Debt Instrument [Line Items]
Long-term borrowings	$ 499,732	501,006
Stated rate	1.75%
Senior Notes | 2.23% Huntington National Bank senior note due 2017
Debt Instrument [Line Items]
Long-term borrowings	$ 498,448	498,185
Stated rate	2.43%
Senior Notes | 2.43% Huntington National Bank senior notes due 2020
Debt Instrument [Line Items]
Long-term borrowings	$ 495,088	495,998
Stated rate	2.97%
Senior Notes | 2.97% Huntington National Bank senior notes due 2020
Debt Instrument [Line Items]
Long-term borrowings	$ 499,686	498,678
Stated rate	1.43%
Senior Notes | 1.42% Huntington National Bank senior notes due 2017 (5)
Debt Instrument [Line Items]
Long-term borrowings	$ 0	498,360
Stated rate	1.31%
Senior Notes | 5.04% Huntington National Bank medium-term notes due 2018
Debt Instrument [Line Items]
Long-term borrowings	$ 0	349,399
Stated rate	1.40%
Senior Notes | 0.74% Huntington National Bank senior note due 2017
Debt Instrument [Line Items]
Long-term borrowings	$ 250,000	250,000
Effective rate	0.74%
Senior Notes | 1.40% Huntington National Bank senior note due 2016
Debt Instrument [Line Items]
Long-term borrowings	$ 36,351	37,469
Stated rate	5.04%
Senior Notes | Three-month LIBOR | 0.74% Huntington National Bank senior note due 2017
Debt Instrument [Line Items]
Basis spread on variable rate	0.425%
Federal Home Loan Bank advances
Debt Instrument [Line Items]
Long-term borrowings	$ 7,540	7,800
Other borrowings
Debt Instrument [Line Items]
Long-term borrowings	$ 335,158	452,448
Other borrowings | FHLB advances
Debt Instrument [Line Items]
Effective rate	3.46%
Other borrowings | Huntington Technology Finance nonrecourse debt, 3.43% effective interest rate, varying maturities
Debt Instrument [Line Items]
Long-term borrowings	$ 277,523	301,577
Effective rate	4.21%
Other borrowings | Huntington Technology Finance ABS Trust 2014 1.70% due 2020
Debt Instrument [Line Items]
Long-term borrowings	$ 57,494	123,577
Stated rate	1.35%
Other borrowings | Huntington Technology Finance ABS Trust 2012 1.79% due 2017
Debt Instrument [Line Items]
Long-term borrowings	$ 0	27,153
Stated rate	1.79%
Other borrowings | Other
Debt Instrument [Line Items]
Long-term borrowings	$ 141	141
Parent Company
Debt Instrument [Line Items]
Long-term borrowings	3,144,615	1,040,981
Parent Company | Subordinated Notes
Debt Instrument [Line Items]
Long-term borrowings	248,156	0
Parent Company | Subordinated Notes | 7.00% Huntington Bancshares Incorporated subordinated notes due 2020
Debt Instrument [Line Items]
Long-term borrowings	$ 319,857	326,379
Stated rate	7.00%
Parent Company | Subordinated Notes | Huntington Capital I Trust Preferred 1.03% junior subordinated debentures due 2027
Debt Instrument [Line Items]
Long-term borrowings	$ 68,720	110,706
Effective rate	1.03%
Parent Company | Subordinated Notes | Sky Financial Capital Trust IV 1.73% Junior Subordinated Debentures Due 2036
Debt Instrument [Line Items]
Long-term borrowings	$ 74,320	74,320
Effective rate	1.73%
Parent Company | Subordinated Notes | Sky Financial Capital Trust III 2.01% junior subordinated debentures due 2036
Debt Instrument [Line Items]
Long-term borrowings	$ 72,165	72,165
Effective rate	2.01%
Parent Company | Subordinated Notes | Huntington Capital II Trust Preferred 1.14% junior subordinated debentures due 2028
Debt Instrument [Line Items]
Long-term borrowings	$ 31,576	54,030
Effective rate	1.14%
Parent Company | Subordinated Notes | Camco Statutory Trust I 2.95% due 2037
Debt Instrument [Line Items]
Long-term borrowings	$ 4,244	4,212
Effective rate	2.95%
Parent Company | Subordinated Notes | Three-month LIBOR | Huntington Capital I Trust Preferred 1.03% junior subordinated debentures due 2027
Debt Instrument [Line Items]
Basis spread on variable rate	0.70%
Parent Company | Subordinated Notes | Three-month LIBOR | Sky Financial Capital Trust IV 1.73% Junior Subordinated Debentures Due 2036
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Parent Company | Subordinated Notes | Three-month LIBOR | Sky Financial Capital Trust III 2.01% junior subordinated debentures due 2036
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Parent Company | Subordinated Notes | Three-month LIBOR | Huntington Capital II Trust Preferred 1.14% junior subordinated debentures due 2028
Debt Instrument [Line Items]
Basis spread on variable rate	0.625%
Parent Company | Subordinated Notes | Three-month LIBOR | Camco Statutory Trust I 2.95% due 2037
Debt Instrument [Line Items]
Basis spread on variable rate	1.33%
Parent Company | Senior Notes | Huntington Bancshares Incorporated Medium-Term Notes Due 2021, 3.19 Percent
Debt Instrument [Line Items]
Long-term borrowings	$ 972,625	0
Parent Company | Senior Notes | Huntington Bancshares Incorporated Senior Note due 2022, 2.33 Percent
Debt Instrument [Line Items]
Long-term borrowings	953,674	0
Parent Company | Senior Notes | 3.19% Huntington Bancshares Incorporated medium-term notes due 2021
Debt Instrument [Line Items]
Long-term borrowings	$ 399,278	$ 399,169
Stated rate	2.64%

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LONG-TERM DEBT - Maturities (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	$ 814,388
2017	2,746,011
2018	638,089
2019	1,383,919
2020	1,042,187
Thereafter	1,757,958
Long-term Debt, Gross	8,382,552
Parent Company | Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	0
2017	400,000
2018	0
2019	0
2020	1,000,000
Thereafter	1,000,000
Long-term Debt, Gross	2,400,000
Parent Company | Subordinated Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	0
2017	0
2018	0
2019	300,000
2020	0
Thereafter	503,463
Long-term Debt, Gross	803,463
Bank | Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	750,000
2017	2,135,000
2018	500,000
2019	1,000,000
2020	0
Thereafter	0
Long-term Debt, Gross	4,385,000
Bank | Subordinated Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	0
2017	125,539
2018	75,716
2019	0
2020	0
Thereafter	250,000
Long-term Debt, Gross	451,255
Bank | Federal Home Loan Bank advances
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	100
2017	1,115
2018	325
2019	2,368
2020	0
Thereafter	3,769
Long-term Debt, Gross	7,677
Bank | Other borrowings
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	64,288
2017	84,357
2018	62,048
2019	81,551
2020	42,187
Thereafter	726
Long-term Debt, Gross	$ 335,157

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LONG-TERM DEBT - Narrative (Details)		1 Months Ended			12 Months Ended
	Mar. 31, 2015 securitization	Nov. 30, 2015 USD ($)	Feb. 28, 2015 USD ($)	Apr. 30, 2014	Dec. 31, 2016 USD ($)	Aug. 16, 2016 USD ($)	Aug. 09, 2016 USD ($)	Mar. 14, 2016 USD ($)	Dec. 31, 2015 USD ($)	Aug. 31, 2015 USD ($)
Debt Instrument [Line Items]
Long-term debt					$ 8,309,159,000				$ 7,041,364,000
Senior Notes | Senior Notes Due 2022
Debt Instrument [Line Items]
Debt face amount							$ 1,000,000,000.0
Debt percent of value issued							99.849%
Stated rate							2.30%
Debt Issuance Costs, Net							$ 5,000,000
Senior Notes | Three point One Five Percent Senior notes Due March 2021
Debt Instrument [Line Items]
Debt face amount								$ 1,000,000,000.0
Debt percent of value issued								99.803%
Stated rate								3.15%
Debt Issuance Costs, Net								$ 5,000,000
Subordinated Notes
Debt Instrument [Line Items]
Long-term debt					4,821,846,000				5,540,135,000
Other borrowings
Debt Instrument [Line Items]
Long-term debt					335,158,000				$ 452,448,000
Other borrowings | HTF Non-recourse Debt, Effective Rate 3.20%
Debt Instrument [Line Items]
Effective rate									3.20%
Long-term debt									$ 293,400,000
Other borrowings | HTF Non-recourse Debt, Effective Rate 1.70%
Debt Instrument [Line Items]
Effective rate									1.70%
Long-term debt									$ 255,000,000
Debt assumed number of securitizations | securitization	2
Parent Company
Debt Instrument [Line Items]
Long-term debt					3,144,615,000				1,040,981,000
Parent Company | Subordinated Notes
Debt Instrument [Line Items]
Long-term debt					$ 248,156,000				0
Parent Company | Subordinated Notes | Huntington Capital II Trust Preferred 1.14% junior subordinated debentures due 2028
Debt Instrument [Line Items]
Effective rate					1.14%
Long-term debt					$ 31,576,000				54,030,000
Parent Company | Subordinated Notes | Huntington Capital II Trust Preferred 1.14% junior subordinated debentures due 2028 | Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate					0.625%
Bank | Senior Notes
Debt Instrument [Line Items]
Debt percent of value issued			99.87%
Bank | Senior Notes | Senior Notes Due November 6, 2018
Debt Instrument [Line Items]
Debt face amount		$ 850,000,000.0
Debt percent of value issued		99.88%
Stated rate		2.20%
Bank | Senior Notes | Senior Notes Due November 6, 2018 | One month prior to maturity date
Debt Instrument [Line Items]
Redemption price percentage		100.00%
Bank | Senior Notes | Senior Notes Due August 20, 2020
Debt Instrument [Line Items]
Debt face amount										$ 500,000,000.0
Debt percent of value issued										99.58%
Stated rate										2.88%
Bank | Senior Notes | Senior Notes Due June 30, 2018
Debt Instrument [Line Items]
Debt face amount									$ 750,000,000.0
Debt percent of value issued									99.71%
Stated rate									2.00%
Bank | Senior Notes | Senior Notes Due February 2018
Debt Instrument [Line Items]
Debt face amount			$ 500,000,000.0
Debt percent of value issued			99.86%
Effective rate			1.70%
Bank | Senior Notes | Senior Notes Due February 2018 | One month prior to maturity date
Debt Instrument [Line Items]
Redemption price percentage			100.00%
Bank | Senior Notes | Senior Notes Due April 1, 2020
Debt Instrument [Line Items]
Debt face amount			$ 500,000,000.0
Stated rate			2.40%
Redemption price percentage			100.00%
Bank | Senior Notes | Senior Notes Due April 24, 2017, Variable Rate | One month prior to maturity date
Debt Instrument [Line Items]
Redemption price percentage				100.00%
FirstMerit Bank
Debt Instrument [Line Items]
Long-term Debt						$ 519,971,000
FirstMerit Bank | Subordinated Notes
Debt Instrument [Line Items]
Long-term Debt						$ 520,000,000

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OTHER COMPREHENSIVE INCOME - Activity/Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pretax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	$ 905	$ 19,606	$ 13,583
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	2,381	12,966	14,141
Less: Reclassification adjustment for net (gains) losses included in net income	(360)	(220)	(3,971)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	2,021	12,746	10,170
Net change in pension and post-retirement obligations	(38,218)	7,795	106,857
Total other comprehensive income (loss), pretax	(268,878)	(5,839)	(11,750)
Tax (Expense) Benefit
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	(320)	(6,933)	(4,803)
Unrealized gains (losses) on derivatives used in cash flow hedging relationships arising during the period	(833)	(4,538)	(4,949)
Less: Reclassification adjustment for net (gains) losses included in net income	126	77	1,390
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	(707)	(4,461)	(3,559)
Net change in pension and other post-retirement obligations	(13,376)	2,728	37,400
Total other comprehensive income (loss)	94,020	1,973	3,467
After-tax
Noncredit-related impairment recoveries (losses) on debt securities not expected to be sold	585	12,673	8,780
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	(201,599)	(19,757)	45,783
Unrealized gains and losses on derivatives used in cash flow hedging relationships arising during the period	1,548	8,428	9,192
Less: Reclassification adjustment for net losses (gains) losses included in net income	(234)	(143)	(2,581)
Net change in unrealized gains (losses) on derivatives used in cash flow hedging relationships	1,314	8,285	6,611
Net change in pension and post-retirement obligations	24,842	(5,067)	(69,457)
Other comprehensive loss, net of tax	(174,858)	(3,866)	(8,283)
Equity securities
Pretax
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	171	(474)	295
Tax (Expense) Benefit
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	(60)	166	(103)
After-tax
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	111	(308)	192
Debt securities
Pretax
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(203,048)	(26,021)	86,618
Less: Reclassification adjustment for net losses (gains) included in net income	(107,145)	(3,901)	(15,559)
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	(309,288)	(10,316)	84,642
Tax (Expense) Benefit
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	70,599	9,108	(30,914)
Less: Reclassification adjustment for net losses (gains) included in net income	37,884	1,365	5,446
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	108,163	3,540	(30,271)
After-tax
Unrealized holding gains (losses) on available-for-sale debt securities arising during the period	(132,449)	(16,913)	55,704
Less: Reclassification adjustment for net gains (losses) included in net income	(69,261)	(2,536)	(10,113)
Net change in unrealized holding gains (losses) on available-for-sale debt/equity securities	$ (201,125)	$ (6,776)	$ 54,371

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OTHER COMPREHENSIVE INCOME - AOCI Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 6,594,606	$ 6,328,170	$ 6,090,153
Other comprehensive income before reclassifications	(130,205)	3,880
Amounts reclassified from accumulated OCI to earnings	(44,653)	(7,746)
Period change	(174,858)	(3,866)
Ending balance	10,308,146	6,594,606	6,328,170
AOCI attributable to parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(226,158)	(222,292)	(214,009)
Ending balance	(401,016)	(226,158)	(222,292)
Unrealized gains and (losses) on securities | Debt securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	8,361	15,137
Other comprehensive income before reclassifications	(131,864)	(4,240)
Amounts reclassified from accumulated OCI to earnings	(69,261)	(2,536)
Period change	(201,125)	(6,776)
Ending balance	(192,764)	8,361	15,137
Unrealized gains and (losses) on securities | Equity securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	176	484
Other comprehensive income before reclassifications	111	(308)
Amounts reclassified from accumulated OCI to earnings	0	0
Period change	111	(308)
Ending balance	287	176	484
Unrealized gains and (losses) on cash flow hedging derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,948)	(12,233)
Other comprehensive income before reclassifications	1,548	8,428
Amounts reclassified from accumulated OCI to earnings	(234)	(143)
Period change	1,314	8,285
Ending balance	(2,634)	(3,948)	(12,233)
Unrealized gains (losses) for pension and other post- retirement obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(230,747)	(225,680)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from accumulated OCI to earnings	24,842	(5,067)
Period change	24,842	(5,067)
Ending balance	(205,905)	(230,747)	$ (225,680)
Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Transferred from AFS to HTM	(82,000)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains and (losses) on securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amounts reclassified from accumulated OCI to earnings	(69,261)	(2,536)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains and (losses) on cash flow hedging derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amounts reclassified from accumulated OCI to earnings	(234)	(143)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) for pension and other post- retirement obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Amounts reclassified from accumulated OCI to earnings	$ 24,842	$ (5,067)

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OTHER COMPREHENSIVE INCOME - Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income—held-to-maturity securities—taxable	$ 138,312	$ 86,614	$ 88,724
Noninterest income—net gains (losses) on sale of securities, realized gain (loss) on sale	2,035	3,184	17,554
Noninterest income—net gains (losses) on sale of securities, OTTI	(2,119)	(2,440)	0
Interest income - loans and leases	2,178,044	1,759,525	1,674,563
Noninterest income - other income	129,317	132,714	126,004
Noninterest expense—personnel costs	1,349,124	1,122,182	$ 1,048,775
Net of tax	44,653	7,746
Unrealized gains and (losses) on cash flow hedging derivatives
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	234	143
Unrealized gains (losses) for pension and other post- retirement obligations
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(24,842)	5,067
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains and (losses) on securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income—held-to-maturity securities—taxable	91,058	(144)
Noninterest income—net gains (losses) on sale of securities, realized gain (loss) on sale	18,206	6,485
Noninterest income—net gains (losses) on sale of securities, OTTI	(2,119)	(2,440)
Total before tax	107,145	3,901
Tax (expense) benefit	(37,884)	(1,365)
Net of tax	69,261	2,536
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains and (losses) on cash flow hedging derivatives
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	360	220
Tax (expense) benefit	(126)	(77)
Net of tax	234	143
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains and (losses) on cash flow hedging derivatives | Interest Rate Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income - loans and leases	361	210
Noninterest income - other income	(1)	10
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) for pension and other post- retirement obligations
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(38,218)	7,795
Tax (expense) benefit	13,376	(2,728)
Net of tax	(24,842)	5,067
Reclassification out of Accumulated Other Comprehensive Income | Actuarial gains (losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Noninterest expense—personnel costs	(40,186)	5,827
Reclassification out of Accumulated Other Comprehensive Income | Net periodic benefit costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Noninterest expense—personnel costs	$ 1,968	$ 1,968

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SHAREHOLDERS' EQUITY - Preferred Stock Issued and Outstanding (Details)			3 Months Ended		6 Months Ended	12 Months Ended
	Aug. 16, 2016 USD ($) $ / shares	Mar. 14, 2016 USD ($) $ / shares	Dec. 31, 2016 USD ($) shares	Mar. 31, 2012	Jun. 30, 2016 USD ($) shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2008 $ / shares shares	May 05, 2016 USD ($)	Dec. 31, 2015 shares
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			1,098,006			1,098,006			398,006
Preferred Stock, Value, Outstanding | $			$ 1,071,227,000			$ 1,071,227,000
Stock issued value | $						$ 584,936,000
Depositary Shares, Issued | shares					24,000,000
Series A Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			362,506			362,506
Preferred Stock, Value, Outstanding | $			$ 362,506,000			$ 362,506,000
Preferred stock, dividend percentage						.0850
Number of shares issued for each share of convertible preferred stock | shares							83.668
Conversion price (in dollars per share) | $ / shares							$ 11.95
Convertible preferred stock, threshold percentage of stock price trigger							130.00%
Convertible preferred stock, threshold consecutive trading days							30 days
Convertible preferred stock, shares converted | shares			1
Series B Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			35,500			35,500
Preferred Stock, Value, Outstanding | $			$ 23,785,000			$ 23,785,000
Preferred stock, dividend percentage						3-mo. LIBOR + 270 bps
Preferred Stock, Redemption Date						Jan. 15, 2017
Depository share, percent interest in preferred stock				0.025
Series D Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			400,000			400,000
Preferred Stock, Value, Outstanding | $			$ 386,348,000			$ 386,348,000
Stock issued value | $						$ 584,936,000
Preferred stock, dividend percentage						.0625
Preferred Stock, Redemption Date						Jul. 15, 2021
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares		1,000
Depositary Shares, Liquidation Preference Per Share | $ / shares		$ 25
Payments of Stock Issuance Costs | $					$ 15,000,000
Preferred Stock, Redemption Period		90 days
Preferred Stock, Value, Issued | $	$ 100,000,000	$ 400,000,000						$ 200,000,000
Depositary Shares, Issued | shares					4,000,000
Preferred Stock, Dividend Rate, Percentage					6.25%
Series D Preferred Stock2
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			200,000			200,000
Preferred Stock, Value, Outstanding | $			$ 198,588,000			$ 198,588,000
Series C Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Outstanding | shares			100,000			100,000
Preferred Stock, Value, Outstanding | $			$ 100,000,000			$ 100,000,000
Preferred stock, dividend percentage						.05875
Preferred Stock, Redemption Date						Jan. 15, 2022
Preferred Stock, Par or Stated Value Per Share | $ / shares	$ 0.01
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares	1,000
Depositary Shares, Liquidation Preference Per Share | $ / shares	$ 25
Preferred Stock, Redemption Period	90 days
Preferred Stock, Dividend Rate, Percentage					5.875%

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SHAREHOLDERS' EQUITY - Share Repurchase Program (Details) - $ / shares		12 Months Ended
	Jun. 29, 2016	Dec. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Increase in Dividends, Per Share	$ 0.08
2015 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Common Stock Repurchased And Retired Average Cost Per Share		$ 10.93

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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Basic earnings per common share:
Net income	$ 238,963	$ 127,004	$ 174,540	$ 171,314	$ 178,309	$ 152,588	$ 196,206	$ 165,854	$ 711,821	$ 692,957	$ 632,392
Preferred stock dividends	(18,865)	(18,537)	(19,874)	(7,998)	(7,972)	(7,968)	(7,968)	(7,965)	(65,274)	(31,873)	(31,854)
Net income available to common shareholders	$ 220,098	$ 108,467	$ 154,666	$ 163,316	$ 170,337	$ 144,620	$ 188,238	$ 157,889	$ 646,547	$ 661,084	$ 600,538
Average common shares issued and outstanding (in shares)									904,438	803,412	819,917
Basic earnings per common share (in USD per share)	$ 0.20	$ 0.12	$ 0.19	$ 0.21	$ 0.21	$ 0.18	$ 0.23	$ 0.19	$ 0.72	$ 0.82	$ 0.73
Diluted earnings per common share
Net income available to common shareholders	$ 220,098	$ 108,467	$ 154,666	$ 163,316	$ 170,337	$ 144,620	$ 188,238	$ 157,889	$ 646,547	$ 661,084	$ 600,538
Effect of assumed preferred stock conversion									0	0	0
Net income applicable to diluted earnings per share									$ 646,547	$ 661,084	$ 600,538
Dilutive potential common shares:
Stock options and restricted stock units and awards (in shares)									11,728	11,633	11,421
Shares held in deferred compensation plans (in shares)									2,486	1,912	1,420
Other (in shares)									138	172	323
Dilutive potential common shares: (in shares)									14,352	13,717	13,164
Total diluted average common shares issued and outstanding (in shares)									918,790	817,129	833,081
Diluted earnings per common share (in USD per share)	$ 0.20	$ 0.11	$ 0.19	$ 0.20	$ 0.21	$ 0.18	$ 0.23	$ 0.19	$ 0.70	$ 0.81	$ 0.72
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding to purchase common stock shares having antidilutive effect (in shares)									3,000	1,600	3,000

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SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	30.0
Shares available for grant	16.0
Cash received for exercises of stock options	$ 14	$ 26	$ 21
Tax benefit realized from stock option exercises	$ 3	$ 7	$ 4
Granted (in USD per share)	$ 9.59	$ 10.86	$ 9.09
Total fair value of awards vested	$ 31	$ 30	$ 26
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Total unrecognized compensation cost related to nonvested awards	$ 81
Cost not yet recognized period for recognition	2 years 4 months
Stock Option | Prior to May 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards expiration period	10 years
Stock Option | After May 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards expiration period	7 years
Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Granted (in USD per share)	$ 9.04

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SHARE-BASED COMPENSATION - Schedule of Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assumptions
Risk-free interest rate	1.63%	2.13%	1.69%
Expected dividend yield	3.18%	2.57%	2.61%
Expected volatility of Huntington’s common stock	30.00%	29.00%	32.30%
Expected option term (years)	6 years 6 months	5 years	5 years 6 months
Weighted-average grant date fair value per share	$ 2.17	$ 2.57	$ 2.13

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SHARE-BASED COMPENSATION - Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation expense	$ 65,608	$ 51,415	$ 43,666
Tax benefit	$ 22,496	$ 17,618	$ 14,779

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SHARE-BASED COMPENSATION - Schedule of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Options (in shares):
Outstanding at beginning of period (in shares)	16,121
Granted (in shares)	1,596
Exercised (in shares)	(2,372)
Forfeited'expired (in shares)	(471)
Outstanding at end of period (in shares)	14,874
Expected to vest at end of period (in shares)	3,656
Exercisable at end of period (in shares)	10,985
Weighted- Average Exercise Price (USD per share):
Outstanding at beginning of period (USD per share) | $ / shares	$ 7.25
Granted (USD per share) | $ / shares	10.06
Exercised (USD per share) | $ / shares	5.90
Forfeited or expired (USD per share) | $ / shares	15.73
Outstanding at end of period (USD per share) | $ / shares	7.50
Vested and expected to vest (USD per share) | $ / shares	9.59
Exercisable (USD per share) | $ / shares	$ 6.75
Weighted-Average Remaining Contractual Life (Years)/Aggregate Intrinsic Value
Outstanding, weighted-average remaining contractual life (years)	3 years 7 months
Expected to vest, weighted-average remaining contractual period (years)	7 years 1 month
Exercisable, weighted-average remaining contractual term (years)	2 years 5 months
Outstanding aggregate intrinsic value | $	$ 85,159
Expected to vest, aggregate intrinsic value | $	13,267
Exercisable, aggregate intrinsic value | $	$ 71,114
Expected to be forfeited (in shares)	233

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SHARE-BASED COMPENSATION - Options by Exercise Price (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares
$0 to $5.63
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (USD per share)	$ 0
Exercise price range, upper range limit (USD per share)	$ 5.63
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract]
Outstanding options, weighted-average remaining contractual life (in years)	1 year 2 months
$5.64 to $6.02
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (USD per share)	$ 5.64
Exercise price range, upper range limit (USD per share)	$ 6.02
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract]
Outstanding options, weighted-average remaining contractual life (in years)	2 years 7 months
$6.03 to $15.95
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (USD per share)	$ 6.03
Exercise price range, upper range limit (USD per share)	$ 15.95
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract]
Outstanding options, weighted-average remaining contractual life (in years)	4 years 7 months
$15.96 and over
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (USD per share)	$ 15.96
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, End of Period [Abstract]
Outstanding options, weighted-average remaining contractual life (in years)	3 months

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SHARE-BASED COMPENSATION - Restricted Stock, RSUs, Performance Shares (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Weighted-Average Grant Date Fair Value Per Share (USD per share):
Granted (in USD per share)	$ 9.59	$ 10.86	$ 9.09
Restricted Stock Awards
Shares:
Nonvested at beginning of period (in shares)	7
Granted (in shares)	0
Assumed (in shares)	916
Vested (in shares)	(241)
Forfeited (in shares)	(26)
Nonvested at end of period (in shares)	656	7
Weighted-Average Grant Date Fair Value Per Share (USD per share):
Nonvested at beginning of period (in USD per share)	$ 9.53
Granted (in USD per share)	0.00
Assumed (in USD per share)	9.68
Vested (in USD per share)	9.68
Forfeited (in USD per share)	9.68
Nonvested at end of period (in USD per share)	$ 9.68	$ 9.53
Restricted Stock Units
Shares:
Nonvested at beginning of period (in shares)	12,170
Granted (in shares)	6,526
Assumed (in shares)	0
Vested (in shares)	(3,142)
Forfeited (in shares)	(821)
Nonvested at end of period (in shares)	14,733	12,170
Weighted-Average Grant Date Fair Value Per Share (USD per share):
Nonvested at beginning of period (in USD per share)	$ 9.11
Granted (in USD per share)	9.69
Assumed (in USD per share)	0.00
Vested (in USD per share)	7.91
Forfeited (in USD per share)	9.52
Nonvested at end of period (in USD per share)	$ 9.61	$ 9.11
Performance Share Awards
Shares:
Nonvested at beginning of period (in shares)	2,893
Granted (in shares)	981
Assumed (in shares)	807
Vested (in shares)	(1,307)
Forfeited (in shares)	(67)
Nonvested at end of period (in shares)	3,307	2,893
Weighted-Average Grant Date Fair Value Per Share (USD per share):
Nonvested at beginning of period (in USD per share)	$ 8.99
Granted (in USD per share)	9.04
Assumed (in USD per share)	9.68
Vested (in USD per share)	8.05
Forfeited (in USD per share)	9.78
Nonvested at end of period (in USD per share)	$ 9.63	$ 8.99

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BENEFIT PLANS - Narrative (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) age	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Aug. 16, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 745,725,000	$ 594,217,000
Employer Contributions	150,000,000
Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year:
Future amortization of transition obligation (asset)	0
Future amortization of prior service cost (credit)	2,000,000
Future amortization gain (loss)	$ 7,000,000
Defined Contribution Plan:
Employer matching contribution, percent of match	4.00%
Discretionary profit-share contribution, percent of annual base pay	1.00%	1.00%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 745,725,000	$ 594,217,000	$ 653,013,000
Employer Contributions	150,000,000	0
Accumulated benefit obligation	736,000,000	755,000,000
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets:
Accumulated benefit obligations in excess of plan assets, aggregate projected benefit obligation	9,000,000
Defined benefit plan expenses	2,000,000	4,000,000	2,000,000
Estimated net periodic pension cost in next fiscal year	$ 14,000,000
Defined Benefit Plan, Information about Plan Assets:
Average duration of plan assets investment in bonds, years	14 years 2 months 3 days
Estimated life of benefit obligations	12 years 8 months
Pension Benefits | Equity securities
Defined Benefit Plan, Information about Plan Assets:
Actual plan asset allocations	44.00%
Target plan asset allocations range minimum	20.00%
Target plan asset allocations range maximum	50.00%
Pension Benefits | Bonds
Defined Benefit Plan, Information about Plan Assets:
Actual plan asset allocations	54.00%
Target plan asset allocations range minimum	50.00%
Target plan asset allocations range maximum	80.00%
Pension Benefits | Cash and cash equivalents
Defined Benefit Plan, Information about Plan Assets:
Actual plan asset allocations	2.00%
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Healthcare and life insurance benefits, employee retirement age | age	55
Healthcare and life insurance benefits, requisite service period	10 years
Life insurance coverage, maximum	$ 50,000
Reduction in liability due to plan amendment	5,000,000
Defined Benefit Plan, Information about Plan Assets:
Estimated future employer contributions in next fiscal year	$ 0
Defined Benefit Plan, Assumed Health Care Cost Trend Rates:
Health care cost trend rate assumed for next fiscal year	6.80%
Ultimate health care cost trend rate	4.50%
Year that rate reaches ultimate trend rate	2028
Supplemental Executive Retirement Plan
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets:
Defined benefit plan expenses	$ 1,000,000	1,000,000	$ 1,000,000
Defined Benefit Plan, Assumed Health Care Cost Trend Rates:
Accrued pension liability	$ 33,000,000	$ 34,000,000
FirstMerit Bank
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets				$ 280,000,000

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BENEFIT PLANS - Weighted Average Assumptions (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015
Pension Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.54%		4.38%	4.54%
Weighted-average assumptions used to determine net periodic benefit cost
Discount Rate			4.54%	4.12%
Long-term Return on Assets			6.75%	7.00%
Post-Retirement Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.81%		3.64%	3.81%
Weighted-average assumptions used to determine net periodic benefit cost
Discount Rate	3.77%	3.72%	3.81%	3.73%

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BENEFIT PLANS - Projected Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of measurement year	$ 754,714	$ 799,594
Service cost	4,100	1,830	$ 1,740
Interest cost	26,992	31,937	32,398
Benefits paid	(18,306)	(17,246)
Settlements	(21,684)	(27,976)
Medicare subsidies	0	0
Actuarial assumptions and gains and losses	(9,470)	(33,425)
Total changes	(18,368)	(44,880)
Projected benefit obligation at end of measurement year	736,346	754,714	799,594
Post-Retirement Benefits
Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of measurement year	8,025	15,963
Service cost	0	0	0
Interest cost	219	506	856
Benefits paid	(1,915)	(2,211)
Settlements	0	(6,993)
Medicare subsidies	0	117
Actuarial assumptions and gains and losses	963	643
Total changes	(733)	(7,938)
Projected benefit obligation at end of measurement year	$ 7,292	$ 8,025	$ 15,963

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BENEFIT PLANS - Fair Value of Plan Assets (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Change in Fair Value of Plan Assets [Abstract]
Fair value of plan assets at beginning of measurement year	$ 594,217
Employer Contributions	150,000
Fair value of plan assets at end of measurement year	745,725	$ 594,217
Pension Benefits
Change in Fair Value of Plan Assets [Abstract]
Fair value of plan assets at beginning of measurement year	594,217	653,013
Actual return on plan assets	39,895	(16,122)
Employer Contributions	150,000	0
Settlements	(20,081)	(25,428)
Benefits paid	(18,306)	(17,246)
Total changes	151,508	(58,796)
Fair value of plan assets at end of measurement year	$ 745,725	$ 594,217

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BENEFIT PLANS - Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Components of net periodic benefit expense [Abstract]
Service cost	$ 4,100	$ 1,830	$ 1,740
Interest cost	26,992	31,937	32,398
Expected return on plan assets	(40,895)	(44,175)	(45,783)
Amortization of prior service credit	0	0	0
Amortization of (gain) / loss	7,459	7,934	5,767
Settlements	9,495	12,645	11,200
Benefit costs	7,151	10,171	5,322
Post-Retirement Benefits
Components of net periodic benefit expense [Abstract]
Service cost	0	0	0
Interest cost	219	506	856
Expected return on plan assets	0	0	0
Amortization of prior service credit	(1,968)	(1,968)	(1,609)
Amortization of (gain) / loss	(288)	(401)	(571)
Settlements	0	(3,090)	0
Benefit costs	$ (2,037)	$ (4,953)	$ (1,324)

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BENEFIT PLANS - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Aug. 16, 2016	Dec. 31, 2015
Summary of plan assets investments
Fair value of plan assets	$ 745,725		$ 594,217
Fair value of plan assets, Percentage	100.00%		100.00%
Federated-money market
Summary of plan assets investments
Fair value of plan assets	$ 16,087		$ 15,590
Fair value of plan assets, Percentage	2.00%		3.00%
Corporate obligations
Summary of plan assets investments
Fair value of plan assets	$ 212,967		$ 205,081
Fair value of plan assets, Percentage	28.00%		34.00%
U.S. Government Obligations
Summary of plan assets investments
Fair value of plan assets	$ 157,764		$ 64,456
Fair value of plan assets, Percentage	21.00%		11.00%
Mutual funds-fixed income
Summary of plan assets investments
Fair value of plan assets	$ 27,851		$ 32,874
Fair value of plan assets, Percentage	4.00%		6.00%
U.S. Government Agencies
Summary of plan assets investments
Fair value of plan assets	$ 7,201		$ 6,979
Fair value of plan assets, Percentage	1.00%		1.00%
Mutual funds-equities
Summary of plan assets investments
Fair value of plan assets	$ 134,832		$ 136,026
Fair value of plan assets, Percentage	18.00%		23.00%
Common stock
Summary of plan assets investments
Fair value of plan assets	$ 144,754		$ 120,046
Fair value of plan assets, Percentage	19.00%		20.00%
Preferred stock
Summary of plan assets investments
Fair value of plan assets	$ 4,778		$ 0
Fair value of plan assets, Percentage	1.00%		0.00%
Exchange Traded Funds
Summary of plan assets investments
Fair value of plan assets	$ 28,101		$ 6,530
Fair value of plan assets, Percentage	4.00%		1.00%
Limited Partnerships
Summary of plan assets investments
Fair value of plan assets	$ 11,390		$ 6,635
Fair value of plan assets, Percentage	2.00%		1.00%
FirstMerit Bank
Summary of plan assets investments
Fair value of plan assets		$ 280,000

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BENEFIT PLANS - Expected Future Benefit Payments (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Pension Benefits
Estimated Future Benefit Payments [Abstract]
2017	$ 46,199
2018	45,077
2019	43,720
2020	41,827
2021	41,528
2022 through 2026	205,278
Post-Retirement Benefits
Estimated Future Benefit Payments [Abstract]
2017	923
2018	761
2019	684
2020	640
2021	606
2022 through 2026	$ 2,482

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BENEFIT PLANS - Amounts Recognized in the Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Current pension liability		$ 2,000
Amounts Recognized in Balance Sheet [Abstract]
Noncurrent liabilities	$ 169,657	$ 192,734

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BENEFIT PLANS - Amounts Recognized in AOCI (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]
Net actuarial loss	$ (217,863)	$ (243,984)	$ (240,197)
Prior service cost	11,958	13,237	14,517
Defined benefit pension plans	$ (205,905)	$ (230,747)	$ (225,680)	$ (156,223)

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BENEFIT PLANS - Amounts Recognized in OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pretax Roll Forward:
Balance, beginning of year	$ (354,997)	$ (347,202)	$ (240,345)
Net actuarial (loss) gain:
Amounts arising during the year	37,818	(25,520)	(133,085)
Amortization included in net periodic benefit costs	2,368	19,693	19,056
Prior service cost:
Amounts arising during the year	0	0	8,781
Amortization included in net periodic benefit costs	(1,968)	(1,968)	(1,609)
Balance, end of year	(316,779)	(354,997)	(347,202)
Tax Roll Forward:
Balance, beginning of year	124,250	121,522	84,122
Net actuarial (loss) gain:
Amounts arising during the year	(13,236)	8,931	46,580
Amortization included in net periodic benefit costs	(829)	(6,892)	(6,670)
Prior service cost:
Amounts arising during the year	0	0	(3,073)
Amortization included in net periodic benefit costs	689	689	563
Balance, end of year	110,874	124,250	121,522
After-tax Roll Forward:
Balance, beginning of year	(230,747)	(225,680)	(156,223)
Net actuarial (loss) gain:
Amounts arising during the year	24,582	(16,589)	(86,505)
Amortization included in net periodic benefit costs	1,539	12,801	12,386
Prior service cost:
Amounts arising during the year	0	0	5,708
Amortization included in net periodic benefit costs	(1,279)	(1,279)	(1,046)
Balance, end of year	$ (205,905)	$ (230,747)	$ (225,680)

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BENEFIT PLANS - Defined Contribution Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Defined contribution plan	$ 36,107	$ 31,896	$ 31,110
Shares in Huntington common stock (in shares)	11,748,379	13,076,164
Market value of Huntington common stock	$ 162,245	$ 144,622
Dividends received on shares of Huntington stock	$ 3,692	$ 3,076

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INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	$ 23,761	$ 23,104	$ 1,172
Unrecognized tax benefit, interest expense (benefit)		100	$ 100
Unrecognized tax benefit, interest accrued benefit	100	100
Net deferred tax asset, operating loss carryforwards	217,000
Net deferred tax asset, operating loss carryforwards, domestic	97,000
Net deferred tax asset, operating loss carryforwards, state and local	44,000
Net deferred tax asset, alternative minimum tax carryforward	73,000
Net deferred tax asset, general business credit carryforward	3,000
Federal capital loss carryforward valuation allowance	5,003	3,620
Bad debt reserves with no federal income tax liability	12,000
Unrecognized deferred tax liability from cumulative bad debt reduction	$ 4,000
Operating Loss Carryforward Federal
Operating Loss Carryforwards [Line Items]
Net deferred tax asset carryforward expiration date	Dec. 31, 2023
Operating Loss Carryforward State
Operating Loss Carryforwards [Line Items]
Net deferred tax asset carryforward expiration date	Dec. 31, 2017
Federal capital loss carryforward valuation allowance	$ 5,000	$ 3,600
General Business Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Net deferred tax asset carryforward expiration date	Dec. 31, 2030

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INCOME TAXES - Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of period	$ 23,104	$ 1,172
Gross increases for tax positions taken during current period	657	23,104
Gross increases for tax positions taken during prior years	0	0
Gross decreases for tax positions taken during prior years	0	(1,172)
Unrecognized tax benefits at end of period	$ 23,761	$ 23,104

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INCOME TAXES - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax provision (benefit)
Federal									$ 39,738	$ 146,195	$ 186,436
State									3,456	5,677	(1,017)
Total current tax provision (benefit)									43,194	151,872	185,419
Deferred tax provision (benefit)
Federal									160,610	66,823	41,167
State									4,137	1,953	(5,993)
Total deferred tax provision (benefit)									164,747	68,776	35,174
Provision for income taxes	$ 73,952	$ 24,749	$ 54,283	$ 54,957	$ 55,583	$ 47,002	$ 64,057	$ 54,006	$ 207,941	$ 220,648	$ 220,593

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INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Provision for income taxes computed at the statutory rate									$ 321,925	$ 319,762	$ 298,545
Increases (decreases):
Tax-exempt income									(27,453)	(20,839)	(17,971)
Tax-exempt bank owned life insurance income									(20,149)	(18,340)	(19,967)
General business credits									(64,151)	(47,894)	(46,047)
State deferred tax asset valuation allowance adjustment, net									0	0	(7,430)
Capital loss									(45,500)	(46,288)	(26,948)
Affordable housing investment amortization, net of tax benefits									36,848	31,741	33,752
State income taxes, net									4,936	4,960	2,873
Other									1,485	(2,454)	3,786
Provision for income taxes	$ 73,952	$ 24,749	$ 54,283	$ 54,957	$ 55,583	$ 47,002	$ 64,057	$ 54,006	$ 207,941	$ 220,648	$ 220,593

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INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Assets, Gross [Abstract]
Allowances for credit losses	$ 254,977	$ 238,415
Fair value adjustments	216,768	121,642
Net operating and other loss carryforward	140,842	61,492
Tax credit carryforward	64,380	44,733
Accrued expense/prepaid	0	41,917
Pension and other employee benefits	22,514	21,614
Partnership investments	8,295	11,781
Market discount	34,921	2,405
Purchase accounting adjustments	76,328	1,823
Other	10,506	11,645
Total deferred tax assets	829,531	557,467
Deferred tax liabilities:
Lease financing	325,091	261,078
Loan origination costs	137,577	114,488
Purchase accounting adjustments	51,440	48,514
Securities adjustments	54,372	46,685
Operating assets	55,786	19,952
Mortgage servicing rights	74,371	6,944
Pension and other employee benefits	0	0
Other	8,796	5,463
Total deferred tax liabilities	707,433	503,124
Net deferred tax asset before valuation allowance	122,098	54,343
Valuation allowance	(5,003)	(3,620)
Net deferred tax asset	$ 117,095	$ 50,723

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Narrative (Details) - Level 1	12 Months Ended
	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of available-for-sale and trading securities in Level 1 (less than)	1.00%
Percentage of available-for-sale and trading securities in Level 2	81.00%
Percentage of available-for-sale and trading securities in Level 3	19.00%

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Aug. 16, 2016	Dec. 31, 2015
Assets measured at fair value on a recurring basis
Loans held for investment	$ 82,319	$ 56,000	$ 34,637
Trading account securities	133,295		36,997
Available-for-sale and other securities	15,562,837		8,775,441
Consumer loans	82,319
U.S. Treasury securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	5,497		5,472
Federal agencies: Mortgage-backed
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	10,673,342		4,521,688
Federal agencies: Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	73,542		115,913
Municipal securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	3,250,057		2,456,396
Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,683		466,477
Recurring
Assets measured at fair value on a recurring basis
Mortgage loans held for sale	438,224		337,577
Trading account securities	133,295		36,997
Available-for-sale and other securities	15,015,133		8,442,655
MSRs	13,747		17,585
Derivative assets netting	(181,940)		(161,297)
Derivative assets	238,219		274,872
Liabilities measured at fair value on a recurring basis
Derivative liabilities netting	(272,361)		(144,309)
Derivative liabilities	98,286		144,350
Short-term borrowings	474		1,770
Recurring | U.S. Treasury securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	5,497		5,472
Recurring | Federal agencies: Mortgage-backed
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	10,673,342		4,521,688
Recurring | Federal agencies: Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	73,542		115,913
Recurring | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	1,148		4,159
Available-for-sale and other securities	3,250,057		2,456,396
Recurring | Asset-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	793,481		861,413
Recurring | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,683		466,477
Recurring | Other securities
Assets measured at fair value on a recurring basis
Trading account securities	132,147		32,838
Available-for-sale and other securities	20,531		15,296
Recurring | Level 1
Assets measured at fair value on a recurring basis
Mortgage loans held for sale	0		0
Loans held for investment	0		0
Trading account securities	132,147		32,475
Available-for-sale and other securities	22,085		16,869
MSRs	0		0
Derivative assets gross	0		0
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	0		0
Short-term borrowings	474		0
Recurring | Level 1 | U.S. Treasury securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	5,497		5,472
Recurring | Level 1 | Federal agencies: Mortgage-backed
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 1 | Federal agencies: Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | 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 | Level 1 | Asset-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 1 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 1 | Other securities
Assets measured at fair value on a recurring basis
Trading account securities	132,147		32,475
Available-for-sale and other securities	16,588		11,397
Recurring | Level 2
Assets measured at fair value on a recurring basis
Mortgage loans held for sale	438,224		337,577
Loans held for investment	34,439		32,889
Trading account securities	1,148		4,522
Available-for-sale and other securities	12,119,001		6,229,898
MSRs	0		0
Derivative assets gross	414,412		429,448
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	362,777		287,994
Short-term borrowings	0		1,770
Recurring | Level 2 | U.S. Treasury securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 2 | Federal agencies: Mortgage-backed
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	10,673,342		4,521,688
Recurring | Level 2 | Federal agencies: Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	73,542		115,913
Recurring | Level 2 | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	1,148		4,159
Available-for-sale and other securities	452,013		360,845
Recurring | Level 2 | Asset-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	717,478		761,076
Recurring | Level 2 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	198,683		466,477
Recurring | Level 2 | Other securities
Assets measured at fair value on a recurring basis
Trading account securities	0		363
Available-for-sale and other securities	3,943		3,899
Recurring | Level 3
Assets measured at fair value on a recurring basis
Mortgage loans held for sale	0		0
Loans held for investment	47,880
Trading account securities	0		0
Available-for-sale and other securities	2,874,047		2,195,888
Consumer loans			1,748
MSRs	13,747		17,585
Derivative assets gross	5,747		6,721
Liabilities measured at fair value on a recurring basis
Gross amounts of recognized liabilities	7,870		665
Short-term borrowings	0		0
Recurring | Level 3 | U.S. Treasury securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 3 | Federal agencies: Mortgage-backed
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 3 | Federal agencies: Other agencies
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 3 | Municipal securities
Assets measured at fair value on a recurring basis
Trading account securities	0		0
Available-for-sale and other securities	2,798,044		2,095,551
Recurring | Level 3 | Asset-backed securities
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	76,003		100,337
Recurring | Level 3 | Corporate debt
Assets measured at fair value on a recurring basis
Available-for-sale and other securities	0		0
Recurring | Level 3 | Other securities
Assets measured at fair value on a recurring basis
Trading account securities	0		0
Available-for-sale and other securities	$ 0		$ 0

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative instruments
Opening balance	$ 6,056	$ 3,360	$ 2,390
Transfers into Level 3	0	0	0
Transfers out of Level 3	(7,251)	(2,793)	0
Total gains/losses for the period:
Included in earnings	(928)	5,489	3,047
Included in OCI	0	0	0
Purchases/originations	0	0	0
Sales	0	0	0
Repayments	0	0	0
Settlements	0	0	(2,077)
Opening balance	(2,123)	6,056	3,360
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	(928)	5,489	3,047
MSRs
Level 3 Assets Roll Forward:
Opening balance	17,585	22,786	34,236
Transfers into Level 3	0	0	0
Transfers out of Level 3	0	0	0
Total gains/losses for the period:
Included in earnings	(3,838)	(5,201)	(11,450)
Included in OCI	0	0	0
Purchases/originations	0	0	0
Sales	0	0	0
Repayments	0	0	0
Settlements	0	0	0
Closing balance	13,747	17,585	22,786
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	(3,838)	(5,201)	(11,450)
Municipal securities
Level 3 Assets Roll Forward:
Opening balance	2,095,551	1,417,593	654,537
Transfers into Level 3	0	0	0
Transfers out of Level 3	0	0	0
Total gains/losses for the period:
Included in earnings	7,049	149	0
Included in OCI	(28,270)	(3,652)	14,776
Purchases/originations	1,399,394	1,002,153	1,038,348
Sales	(37,444)	(9,656)	0
Repayments	0	0	0
Settlements	(638,236)	(311,036)	(290,068)
Closing balance	2,798,044	2,095,551	1,417,593
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	(33,415)	0	14,776
Private-label CMO
Level 3 Assets Roll Forward:
Opening balance	0	30,464	32,140
Transfers into Level 3		0	0
Transfers out of Level 3		0	0
Total gains/losses for the period:
Included in earnings		47	36
Included in OCI		1,832	452
Purchases/originations		0	0
Sales		(30,077)	0
Repayments		0	0
Settlements		(2,266)	(2,164)
Closing balance		0	30,464
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	452
Asset-backed securities
Level 3 Assets Roll Forward:
Opening balance	100,337	82,738	107,419
Transfers into Level 3	0	0	0
Transfers out of Level 3	0	0	0
Total gains/losses for the period:
Included in earnings	(2,593)	(2,400)	226
Included in OCI	6,448	24,802	21,839
Purchases/originations	0	0	0
Sales	(25,196)	0	(22,870)
Repayments	0	0	0
Settlements	(2,993)	(4,803)	(23,876)
Closing balance	76,003	100,337	82,738
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	3,722	(2,440)	21,137
Automobile
Level 3 Assets Roll Forward:
Opening balance	1,748	10,590	52,286
Transfers into Level 3	0	0	0
Transfers out of Level 3	0	0	0
Total gains/losses for the period:
Included in earnings	(2,353)	(497)	(918)
Included in OCI	0	0	0
Purchases/originations	56,469	0	0
Sales	0	0	0
Repayments	(7,984)	(8,345)	(40,778)
Settlements	0	0	0
Closing balance	47,880	1,748	10,590
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	$ (497)	$ (1,624)

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FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Classification of Gains/Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivatives gain (loss) included in earnings	$ (928)	$ 5,489	$ 3,047
MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	(3,838)	(5,201)	(11,450)
Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	7,049	149	0
Private-label CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings		47	36
Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	(2,593)	(2,400)	226
Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	(2,353)	(497)	(918)
Mortgage banking income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivatives gain (loss) included in earnings	(928)	5,489	3,047
Mortgage banking income | MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	(3,838)	(5,201)	(11,450)
Mortgage banking income | Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Mortgage banking income | Private-label CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings		0	0
Mortgage banking income | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Mortgage banking income | Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Securities gains (losses)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivatives gain (loss) included in earnings	0	0	0
Securities gains (losses) | MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Securities gains (losses) | Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	788	149	0
Securities gains (losses) | Private-label CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings		0	0
Securities gains (losses) | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	(2,598)	(2,440)	170
Securities gains (losses) | Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Interest and fee income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivatives gain (loss) included in earnings	0	0	0
Interest and fee income | MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Interest and fee income | Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Interest and fee income | Private-label CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings		47	36
Interest and fee income | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	40	56
Interest and fee income | Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	(497)	(1,032)
Noninterest income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net derivatives gain (loss) included in earnings	0	0	0
Noninterest income | MSRs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	0	0	0
Noninterest income | Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	6,261	0	0
Noninterest income | Private-label CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings		0	0
Noninterest income | Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	5	0	0
Noninterest income | Automobile
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets gain (loss) included in earnings	$ (2,353)	$ 0	$ 114

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Aug. 16, 2016	Dec. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment, fair value	$ 82,319	$ 56,000	$ 34,637
Automobile loans, fair value	82,319
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, aggregate unpaid principle	433,760		326,802
Aggregate difference	4,464		10,775
Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment, fair value	82,319		34,637
Loans held for investment, aggregate unpaid principle	91,998		35,385
Aggregate difference	(9,679)		(748)
90 or more days | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale, fair value	0		1,268
Loans held for sale, aggregate unpaid principle	0		1,294
Aggregate difference	0		(26)
90 or more days | Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for investment, fair value	8,408		428
Loans held for investment, aggregate unpaid principle	11,082		497
Aggregate difference	$ (2,674)		$ (69)

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changes in Fair Value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gains (losses) from fair value changes	$ 6,741	$ (2,342)	$ (1,978)
Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gains (losses) from fair value changes	0	(568)	(918)
Gains (losses) included in fair value changes associated with instrument specific credit risk	$ 436	$ 199	$ 911

XML

FAIR VALUES OF ASSETS AND LIABILITIES - Non-recurring/Fair Values of Financial Instruments (Details) - Nonrecurring $ in Thousands	Dec. 31, 2016 USD ($)
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	$ 171,309
Impaired loans	53,818
Other real estate owned	50,930
Total Gains/(Losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	(1,918)
Impaired loans	11,412
Other real estate owned	620
Level 1 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	0
Impaired loans	0
Other real estate owned	0
Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	0
Impaired loans	0
Other real estate owned	0
Level 3 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs	171,309
Impaired loans	53,818
Other real estate owned	$ 50,930

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FAIR VALUES OF ASSETS AND LIABILITIES - Significant Unobservable Level 3 Inputs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Aug. 16, 2016	Dec. 31, 2015
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Available-for-sale and other securities	$ 15,562,837		$ 8,775,441
Loans held for investment	82,319	$ 56,000	34,637
Consumer loans	$ 82,319
Derivative Liabilities | Maximum | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Estimated Pull through %	99.80%
Derivative Liabilities | Minimum | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Estimated Pull through %	11.90%
Derivative Liabilities | Weighted Average | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Estimated Pull through %	76.70%
MSRs | Maximum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	25.70%
Spread over forward interest rate swap rates	0.092
MSRs | Minimum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	7.90%
Spread over forward interest rate swap rates	0.033
MSRs | Weighted Average | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	14.70%
Spread over forward interest rate swap rates	0.054
Derivative Assets | Maximum | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Net market price	20.90%
Derivative Assets | Minimum | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Net market price	(3.20%)
Derivative Assets | Weighted Average | Consensus Pricing | Level 3
Quantitative information about level 3 fair value measurements
Net market price	1.90%
Municipal securities | Maximum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	7.20%
Cumulative default	50.00%
Loss given default	80.00%
Municipal securities | Minimum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	0.30%
Cumulative default	0.10%
Loss given default	5.00%
Municipal securities | Weighted Average | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	3.10%
Cumulative default	2.10%
Loss given default	20.50%
Asset-backed securities | Maximum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	10.90%
Cumulative prepayment rate	100.00%
Cumulative default	100.00%
Loss given default	100.00%
Cure given deferral	75.00%
Asset-backed securities | Minimum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	4.60%
Cumulative prepayment rate	0.00%
Cumulative default	1.60%
Loss given default	85.00%
Cure given deferral	0.00%
Asset-backed securities | Weighted Average | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Discount rate	6.20%
Cumulative prepayment rate	9.60%
Cumulative default	11.10%
Loss given default	96.60%
Cure given deferral	36.80%
Automobile | Maximum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	154.20%
Discount rate	5.00%
Life of pool cumulative losses	2.10%
Automobile | Minimum | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	154.20%
Discount rate	0.20%
Life of pool cumulative losses	2.10%
Automobile | Weighted Average | Discounted cash flow | Level 3
Quantitative information about level 3 fair value measurements
Constant prepayment rate	154.20%
Discount rate	2.30%
Life of pool cumulative losses	2.10%
Recurring
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
MSRs	$ 13,747		17,585
Available-for-sale and other securities	15,015,133		8,442,655
Recurring | Level 3
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
MSRs	13,747		17,585
Derivative assets gross	5,747		6,721
Gross amounts of recognized liabilities	7,870		665
Available-for-sale and other securities	2,874,047		2,195,888
Loans held for investment	47,880
Consumer loans			1,748
Fair Value
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Available-for-sale and other securities	15,562,837		$ 8,775,441
Fair Value | Nonrecurring
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
MSRs	171,309
Impaired loans	53,818
Other real estate owned	50,930
Fair Value | Nonrecurring | Level 3
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
MSRs	171,309
Impaired loans	53,818
Other real estate owned	$ 50,930

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FAIR VALUES OF ASSETS AND LIABILITIES - Balance Sheet Location (Details) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financial Assets:
Trading account securities	$ 133,295	$ 36,997
Loans held for sale	512,951	474,621
Available-for-sale and other securities	15,562,837	8,775,441
Held-to-maturity securities	7,806,939	6,159,590
Net loans and leases	66,323,583	49,743,256
Financial Liabilities:
Deposits	75,607,717	55,294,979
Short-term borrowings	3,692,654	615,279
Long-term borrowings	8,309,159	7,041,364
Carrying Amount
Financial Assets:
Cash and short term assets	1,443,037	898,994
Trading account securities	133,295	36,997
Loans held for sale	512,951	474,621
Available-for-sale and other securities	15,562,837	8,775,441
Held-to-maturity securities	7,806,939	6,159,590
Net loans and leases	66,323,583	49,743,256
Derivatives	238,219	274,872
Financial Liabilities:
Deposits	75,607,717	55,294,979
Short-term borrowings	3,692,654	615,279
Long-term borrowings	8,309,159	7,041,364
Derivatives	98,286	144,350
Fair Value
Financial Assets:
Cash and short term assets	1,443,037	898,994
Trading account securities	133,295	36,997
Loans held for sale	515,640	484,511
Available-for-sale and other securities	15,562,837	8,775,441
Held-to-maturity securities	7,787,268	6,135,458
Net loans and leases	66,294,639	48,024,998
Derivatives	238,219	274,872
Financial Liabilities:
Deposits	76,161,091	55,299,435
Short-term borrowings	3,692,654	615,279
Long-term borrowings	8,387,444	7,016,789
Derivatives	98,286	144,350
Level 1 | Fair Value
Financial Assets:
Held-to-maturity securities	0	0
Net loans and leases	0	0
Financial Liabilities:
Deposits	0	0
Short-term borrowings	474	0
Long-term borrowings	0	0
Level 2 | Fair Value
Financial Assets:
Held-to-maturity securities	7,787,268	6,135,458
Net loans and leases	0	0
Financial Liabilities:
Deposits	72,319,328	51,869,105
Short-term borrowings	0	1,770
Long-term borrowings	7,980,176	0
Level 3 | Fair Value
Financial Assets:
Held-to-maturity securities	0	0
Net loans and leases	66,294,639	48,024,998
Financial Liabilities:
Deposits	3,841,763	3,430,330
Short-term borrowings	3,692,180	613,509
Long-term borrowings	$ 407,268	$ 7,016,789

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DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Management (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Total notional value	$ 10,800,000
Fair Value Hedges
Derivative [Line Items]
Total notional value	7,475,000
Cash Flow Hedges
Derivative [Line Items]
Total notional value	3,325,000
Loans
Derivative [Line Items]
Total notional value	3,325,000
Loans | Fair Value Hedges
Derivative [Line Items]
Total notional value	0
Loans | Cash Flow Hedges
Derivative [Line Items]
Total notional value	3,325,000
Deposits
Derivative [Line Items]
Total notional value	0
Deposits | Fair Value Hedges
Derivative [Line Items]
Total notional value	0
Deposits | Cash Flow Hedges
Derivative [Line Items]
Total notional value	0
Subordinated notes
Derivative [Line Items]
Total notional value	950,000
Subordinated notes | Fair Value Hedges
Derivative [Line Items]
Total notional value	950,000
Subordinated notes | Cash Flow Hedges
Derivative [Line Items]
Total notional value	0
Other long-term debt
Derivative [Line Items]
Total notional value	6,525,000
Other long-term debt | Fair Value Hedges
Derivative [Line Items]
Total notional value	6,525,000
Other long-term debt | Cash Flow Hedges
Derivative [Line Items]
Total notional value	$ 0

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DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Management Add Info (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Notional Value	$ 10,800,000
Average Maturity (years)	2 years 4 months
Fair Value	$ (53,556)
Weighted-Average Rate Receive	1.35%
Weighted-Average Rate Pay	0.89%
Asset conversion swaps - Receive Fixed - Generic
Derivative [Line Items]
Notional Value	$ 3,325,000
Average Maturity (years)	7 months
Fair Value	$ (2,060)
Weighted-Average Rate Receive	1.04%
Weighted-Average Rate Pay	0.91%
Liability conversion swaps Receive Fixed Generic
Derivative [Line Items]
Notional Value	$ 7,475,000
Average Maturity (years)	3 years 1 month
Fair Value	$ (51,496)
Weighted-Average Rate Receive	1.49%
Weighted-Average Rate Pay	0.88%

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DERIVATIVE FINANCIAL INSTRUMENTS - Hedging instruments (Details) - USD ($) $ in Thousands	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	$ 46,440	$ 80,513
Interest rate contracts not designated as hedging instruments	213,587	190,846
Foreign exchange contracts not designated as hedging instruments	23,265	37,727
Commodities contracts not designated as hedging instruments	108,026	117,894
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	9,775	0
Total derivative assets	401,093	426,980
Accrued expenses and other liabilities
Liability derivatives included in accrued expenses and other liabilities
Interest rate contracts designated as hedging instruments	99,996	15,215
Interest rate contracts not designated as hedging instruments	143,976	121,815
Foreign exchange contracts not designated as hedging instruments	19,576	35,283
Commodities contracts not designated as hedging instruments	104,328	114,887
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0	0
Total derivative liabilities	$ 367,876	$ 287,200

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DERIVATIVE FINANCIAL INSTRUMENTS - Cash Flow Hedges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	$ 1,548	$ 8,428	$ 9,192
Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion) (pre-tax)	(360)	(220)	(3,971)
Deposits | Interest expense deposits
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	(82)	(996)	(1,045)
Hedged deposits | Interest expense deposits
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	72	992	1,025
Subordinated notes | Interest expense subordinated notes and other long term debt
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	(47,852)	(8,237)	476
Hedged subordinated notes | Interest expense subordinated notes and other long term debt
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	45,019	8,237	(476)
Other long-term debt | Interest expense subordinated notes and other long term debt
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	(74,481)	3,903	1,990
Hedged Other long term debt | Interest expense subordinated notes and other long term debt
Derivative Instruments, Gain (Loss) [Line Items]
Increase or (decrease) to interest expense for derivatives designated as fair value hedges	67,389	(3,602)	828
Loans | Interest and fee income—loans and leases | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	1,548	8,428	9,192
Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion) (pre-tax)	(361)	(210)	(4,064)
Loans | Noninterest income - other income | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in OCI on derivatives (effective portion)	0	0	0
Amount of (gain) or loss reclassified from accumulated OCI into earnings (effective portion) (pre-tax)	$ 1	$ (10)	$ 93

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DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value Hedges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans
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	$ (317)	$ (763)	$ 74

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DERIVATIVE FINANCIAL INSTRUMENTS - Mortgage Banking Activities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Interest rate lock agreements
Derivative assets:
Derivative assets gross	$ 5,747	$ 6,721
Derivative liabilities:
Total derivative liabilities	(1,598)	(220)
Forward trades and options
Derivative assets:
Derivative assets gross	13,319	2,468
Derivative liabilities:
Total derivative liabilities	(1,173)	(1,239)
Derivative used in Mortgage Banking Activities
Derivative assets:
Derivative assets gross	19,066	9,189
Derivative liabilities:
Total derivative liabilities	(2,771)	(1,459)
Net derivative asset	$ 16,295	$ 7,730

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DERIVATIVE FINANCIAL INSTRUMENTS - Offsetting Assets (Details) - Deriviative Contract - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivative Asset [Abstract]
Gross amounts of recognized assets	$ 420,159	$ 436,169
Gross amounts offset in the consolidated balance sheets	(181,940)	(161,297)
Net amounts of assets presented in the consolidated balance sheets	238,219	274,872
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross amounts not offset in the statement of financial position - financial instruments	(34,328)	(39,305)
Gross amounts not offset in the statement of financial position - cash collateral received	(5,428)	(3,462)
Net amount	$ 198,463	$ 232,105

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DERIVATIVE FINANCIAL INSTRUMENTS - Offsetting Liabilities (Details) - Deriviative Contract - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivative Liability [Abstract]
Gross amounts of recognized liabilities	$ 370,647	$ 288,659
Gross amounts offset in the consolidated balance sheets	(272,361)	(144,309)
Net amounts of assets presented in the consolidated balance sheets	98,286	144,350
Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross amounts not offset in the consolidated balance sheets, financial instruments	(7,550)	(62,460)
Gross amounts not offset in the consolidated balance sheets, cash collateral received	(23,943)	(20)
Net amount	$ 66,793	$ 81,870

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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2016
Derivative [Line Items]
Increase (decrease) to net interest income due to derivative adjustment	$ 72,000	$ 108,000	$ 98,000
Expected after-tax unrealized gains on cash flow hedging derivatives reclassified to earnings	(2,000)
Purchase of interest rate caps and derivative financial instruments, notional value	10,800,000
Notional amount corresponds to trading liabilities, fair value	3,000
Total notional amount corresponds to trading assets, fair value (less than)	1,000
Credit risks from interest rate swaps used for trading purposes	196,000	224,000
Credit risk derivative fair value	3,000	6,000
Aggregate credit risk, net of collateral	26,000	15,000
Investment securities and cash collateral pledged by Huntington	172,000
Investment securities and cash collateral pledged to Huntington	90,000
Swap
Derivative [Line Items]
Gross amounts of recognized liabilities (less than)	1,000
Derivative liabilities	6,000
Derivative used in trading activity
Derivative [Line Items]
Net derivative asset (liability)	80,000	76,000
Derivative financial instruments used by Huntington on behalf of customers including offsetting derivatives, notional value	21,000,000	15,000,000
Derivative used in Mortgage Banking Activities
Derivative [Line Items]
Gross amounts of recognized liabilities (less than)	2,771	1,459
Purchase of interest rate caps and derivative financial instruments, notional value	300,000	500,000
Gains (losses) related to derivative instruments Included in total MSR	(1,000)	(2,000)	$ 7,000
Net derivative asset (liability)	16,295	7,730
Share Swap Economic Hedge
Derivative [Line Items]
Purchase of interest rate caps and derivative financial instruments, notional value				$ 20,000
Derivative, Fair Value, Net	10,000
Other Credit Derivatives
Derivative [Line Items]
Derivative asset notional amount	$ 582,000	$ 344,000

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VIEs - Narrative (Details) $ in Millions	3 Months Ended					12 Months Ended
	Dec. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 trust	Dec. 31, 2012 USD ($)	Mar. 31, 2012 USD ($)	Dec. 31, 2016 securitization
Variable Interest Entity [Line Items]
Number of Securitization Trusts Acquired | trust			2
Maximum year to defer payment of interest on Debenture						5 years
Trust 2016 Unconsolidated
Variable Interest Entity [Line Items]
Total of automobile loans transferred In securitization transaction	$ 2
2015-1 Automobile Trust
Variable Interest Entity [Line Items]
Total of automobile loans transferred In securitization transaction		$ 1
2012-1 Automobile Trust
Variable Interest Entity [Line Items]
Total of automobile loans transferred In securitization transaction					$ 1
2012-2 Automobile Trust
Variable Interest Entity [Line Items]
Total of automobile loans transferred In securitization transaction				$ 1
Macquarie Equipment Finance
Variable Interest Entity [Line Items]
Number of securitizations | securitization						2

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VIEs - Consolidated VIEs (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Cash	$ 1,384,770	$ 847,156
Net loans and leases	66,323,583	49,743,256
Accrued income and other assets	2,062,976	1,630,110
Total assets	99,714,097	71,018,301
Liabilities
Long-term debt	8,309,159	7,041,364
Accrued interest and other liabilities	1,796,421	1,472,073
Total liabilities	89,405,951	64,423,695
Equity:
Total liabilities and shareholders’ equity	99,714,097	71,018,301
Loans and Leases Receivable, Gross	66,961,996	50,341,099
Total ALLL balance:	638,413	597,843	$ 605,196	$ 647,870
Macquarie Equipment Funding Trust Series 2012A
Assets:
Cash		1,377
Net loans and leases		32,180
Accrued income and other assets		0
Total assets		33,557
Liabilities
Long-term debt		27,153
Accrued interest and other liabilities		0
Total liabilities		27,153
Equity:
Beneficial Interest owned by third party		6,404
Total liabilities and shareholders’ equity		33,557
Macquarie Equipment Funding Trust Series 2014A
Assets:
Cash	1,564	1,561
Net loans and leases	69,825	152,331
Accrued income and other assets	0	0
Total assets	71,389	153,892
Liabilities
Long-term debt	57,494	123,577
Accrued interest and other liabilities	0	0
Total liabilities	57,494	123,577
Equity:
Beneficial Interest owned by third party	13,895	30,315
Total liabilities and shareholders’ equity	71,389	153,892
Franklin 2009 Trust
Assets:
Cash	0	0
Net loans and leases	0	0
Accrued income and other assets	281	229
Total assets	281	229
Liabilities
Long-term debt	0	0
Accrued interest and other liabilities	281	229
Total liabilities	281	229
Equity:
Beneficial Interest owned by third party	0	0
Total liabilities and shareholders’ equity	281	229
Trusts
Assets:
Cash	1,564	2,938
Net loans and leases	69,825	184,511
Accrued income and other assets	281	229
Total assets	71,670	187,678
Liabilities
Long-term debt	57,494	150,730
Accrued interest and other liabilities	281	229
Total liabilities	57,775	150,959
Equity:
Beneficial Interest owned by third party	13,895	36,719
Total liabilities and shareholders’ equity	$ 71,670	$ 187,678

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VIEs - Unconsolidated VIEs (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Variable Interest Entity [Line Items]
Total Assets	$ 686,991	$ 516,725
Total Liabilities	587,589	538,869
Maximum Exposure to Loss	673,072	502,806
Trust 2016 Unconsolidated
Variable Interest Entity [Line Items]
Total Assets	14,770
Total Liabilities	0
Maximum Exposure to Loss	14,770
2015-1 Automobile Trust
Variable Interest Entity [Line Items]
Total Assets	2,227	7,695
Total Liabilities	0	0
Maximum Exposure to Loss	2,227	7,695
2012-1 Automobile Trust
Variable Interest Entity [Line Items]
Total Assets	0	94
Total Liabilities	0	0
Maximum Exposure to Loss	0	94
2012-2 Automobile Trust
Variable Interest Entity [Line Items]
Total Assets	0	771
Total Liabilities	0	0
Maximum Exposure to Loss	0	771
Trust Preferred Securities
Variable Interest Entity [Line Items]
Total Assets	13,919	13,919
Total Liabilities	252,552	317,106
Maximum Exposure to Loss	0	0
Low Income Housing Tax Credit Partnerships
Variable Interest Entity [Line Items]
Total Assets	576,880	425,500
Total Liabilities	292,721	196,001
Maximum Exposure to Loss	576,880	425,500
Other Investments
Variable Interest Entity [Line Items]
Total Assets	79,195	68,746
Total Liabilities	42,316	25,762
Maximum Exposure to Loss	$ 79,195	$ 68,746

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VIEs - Trust Preferred Securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Variable Interest Entity [Line Items]
Principal amount of subordinated note/ debenture issued to trust	$ 8,382,552
Huntington Capital I
Variable Interest Entity [Line Items]
Rate	1.59%
Principal amount of subordinated note/ debenture issued to trust	$ 69,730
Investment in unconsolidated subsidiary	$ 6,186
Huntington Capital I | Three-month LIBOR
Variable Interest Entity [Line Items]
Basis spread on variable rate	0.70%
Huntington Capital II
Variable Interest Entity [Line Items]
Rate	1.59%
Principal amount of subordinated note/ debenture issued to trust	$ 32,093
Investment in unconsolidated subsidiary	$ 3,093
Huntington Capital II | Three-month LIBOR
Variable Interest Entity [Line Items]
Basis spread on variable rate	62.50%
Sky Financial Capital Trust III
Variable Interest Entity [Line Items]
Rate	2.40%
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
Variable Interest Entity [Line Items]
Basis spread on variable rate	1.40%
Sky Financial Capital Trust IV
Variable Interest Entity [Line Items]
Rate	2.25%
Principal amount of subordinated note/ debenture issued to trust	$ 74,320
Investment in unconsolidated subsidiary	$ 2,320
Sky Financial Capital Trust IV | Three-month LIBOR
Variable Interest Entity [Line Items]
Basis spread on variable rate	1.33%
Camco Financial Trust
Variable Interest Entity [Line Items]
Rate	3.43%
Principal amount of subordinated note/ debenture issued to trust	$ 4,244
Investment in unconsolidated subsidiary	155
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Principal amount of subordinated note/ debenture issued to trust	252,552
Investment in unconsolidated subsidiary	$ 13,919

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VIEs - Low Income Housing Tax Credit Partnerships (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Low Income Housing Tax Credit Partnerships
Variable Interest Entity [Line Items]
Affordable housing tax credit investments	$ 877,237	$ 674,157
Less: amortization	(300,357)	(248,657)
Net affordable housing tax credit investments	576,880	425,500
Unfunded commitments	292,721	196,001
Tax credits and other tax benefits recognized	79,696	59,614	$ 51,317
Proportional Amortization Method
Variable Interest Entity [Line Items]
Tax credit amortization expense included in provision for income taxes	52,713	42,951	39,021
Proportional amortization method
Tax credit amortization expense included in provision for income taxes	52,713	42,951	39,021
Equity Method
Equity method
Tax credit investment losses included in noninterest income	$ 637	$ 355	$ 434

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COMMITMENTS AND CONTINGENT LIABILITIES - Commitments to Extend Credit (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Commercial
Guarantor Obligations [Line Items]
Contract amount represents credit risk	$ 15,190,056	$ 11,448,927
Consumer
Guarantor Obligations [Line Items]
Contract amount represents credit risk	12,235,943	8,574,093
Commercial real estate
Guarantor Obligations [Line Items]
Contract amount represents credit risk	1,697,671	813,271
Standby letters of credit
Guarantor Obligations [Line Items]
Contract amount represents credit risk	637,182	511,706
Commercial letters-of-credit
Guarantor Obligations [Line Items]
Contract amount represents credit risk	$ 4,610	$ 56,119

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COMMITMENTS AND CONTINGENT LIABILITIES - Narrative (Details) $ in Thousands	2 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2016 lawsuit	Dec. 31, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2010 lawsuit	Sep. 28, 2015 USD ($)
Future minimum sublease rental payments:
Operating leases, future minimum payments due, future minimum sublease rentals, total		$ 8,000		$ 8,000
2016		3,000		3,000
2017		2,000		2,000
2018		2,000		2,000
2019		1,000		1,000
2020		0		0
Thereafter		0		0
Operating lease, future minimum payments due:
2016		59,000		59,000
2017		54,000		54,000
2018		48,000		48,000
2019		46,000		46,000
2020		30,000		30,000
Thereafter		152,000		152,000
Total rental expense for all operating leases				65,000	$ 58,000	$ 57,000
Maximum
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		65,000		65,000
Commercial letters-of-credit
Loss Contingencies [Line Items]
Contract amount represents credit risk		4,610		$ 4,610	56,119
Maturity period of guarantee				90 days
Commitments to Sell Loans
Loss Contingencies [Line Items]
Commitments to sell residential real estate loans		800,000		$ 800,000	659,000
Maturity period of forward contracts relating mortgage banking business (less than)				1 year
Standby letters of credit
Loss Contingencies [Line Items]
Contract amount represents credit risk		637,182		$ 637,182	511,706
Maturity period of guarantee				2 years
Outstanding standby letters of credit		8,000		$ 8,000	$ 7,000
Cyberco Litigation
Loss Contingencies [Line Items]
Bankruptcy Court recommended judgment amount in Cyberco case, principle								$ 72,000
Loss Contingency Accrual, Period Increase (Decrease)		(42,000)	$ 38,000
FirstMerit Merger Litigation
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit	5						2
FirstMerit Overdraft Litigation | Cash
Loss Contingencies [Line Items]
Litigation Settlement, Amount		9,000
FirstMerit Overdraft Litigation | Debt forgiveness
Loss Contingencies [Line Items]
Litigation Settlement, Amount		7,000
FirstMerit Overdraft Litigation | Insurance Settlement
Loss Contingencies [Line Items]
Litigation Settlement, Amount		$ 4,000

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OTHER REGULATORY MATTERS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier one risk based capital required for capital adequacy to risk weighted assets	4.50%
Tier 1 common equity to risk weighted assets ratio	9.56%	9.79%
Tier 1 common equity amount	$ 7,485,816	$ 5,721,028
Tier 1 risk based capital required to be well capitalized to risk weighted assets	6.00%
Tier 1 risk based capital required for capital adequacy to risk weighted assets	6.00%
Tier 1 capital ratio	10.92%	10.53%
Tier 1 capital amount	$ 8,547,154	$ 6,154,000
Capital required to be well capitalized to risk weighted assets	10.00%
Capital required for capital adequacy to risk weighted assets	8.00%
Risk based capital ratio	13.05%	12.64%
Risk based capital amount	$ 10,215,627	$ 7,386,936
Tier 1 leverage capital required for capital adequacy to average assets	4.00%
Tier 1 leverage ratio	8.70%	8.79%
Tier 1 leverage amount	$ 8,547,154	$ 6,154,000
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier one risked based capital required to be well capitalized to risk weighted assets	6.50%
Common equity tier one risk based capital required for capital adequacy to risk weighted assets	4.50%
Tier 1 common equity to risk weighted assets ratio	10.42%	9.46%
Tier 1 common equity amount	$ 8,153,091	$ 5,518,748
Tier 1 risk based capital required to be well capitalized to risk weighted assets	8.00%
Tier 1 risk based capital required for capital adequacy to risk weighted assets	6.00%
Tier 1 capital ratio	11.61%	9.83%
Tier 1 capital amount	$ 9,085,921	$ 5,735,274
Capital required to be well capitalized to risk weighted assets	10.00%
Capital required for capital adequacy to risk weighted assets	8.00%
Risk based capital ratio	13.83%	11.74%
Risk based capital amount	$ 10,817,597	$ 6,850,596
Tier 1 leverage capital required to be well capitalized to average assets	5.00%
Tier 1 leverage capital required for capital adequacy to average assets	4.00%
Tier 1 leverage ratio	9.29%	8.21%
Tier 1 leverage amount	$ 9,085,921	$ 5,735,274

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OTHER REGULATORY MATTERS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Average required reserve balance on deposits	$ 300	$ 500
Amount bank could lend to single affiliate	1,079
Cash dividends paid to the holding company	$ 638

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PARENT COMPANY FINANCIAL STATEMENTS - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and due from banks	$ 1,384,770	$ 847,156	$ 1,220,565	$ 1,001,132
Accrued interest receivable and other assets	2,062,976	1,630,110
Total assets	99,714,097	71,018,301
Liabilities and shareholders’ equity
Long-term borrowings	8,309,159	7,041,364
Accrued expenses and other liabilities	1,796,421	1,472,073
Total liabilities	89,405,951	64,423,695
Shareholders’ equity	10,308,146	6,594,606	6,328,170	6,090,153
Total liabilities and shareholders’ equity	99,714,097	71,018,301
Parent Company
Assets
Cash and due from banks	1,752,889	917,368	$ 662,768	$ 966,065
Due from The Huntington National Bank	730,004	406,253
Due from non-bank subsidiaries	45,193	48,151
Investment in The Huntington National Bank	10,668,303	5,966,783
Investment in non-bank subsidiaries	499,611	489,205
Accrued interest receivable and other assets	320,666	192,444
Total assets	14,016,666	8,020,204
Liabilities and shareholders’ equity
Long-term borrowings	3,144,615	1,040,981
Accrued expenses and other liabilities	563,905	384,617
Total liabilities	3,708,520	1,425,598
Shareholders’ equity	10,308,146	6,594,606
Total liabilities and shareholders’ equity	$ 14,016,666	$ 8,020,204

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PARENT COMPANY FINANCIAL STATEMENTS - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest from
Other income									$ 129,317	$ 132,714	$ 126,004
Expense
Personnel costs									1,349,124	1,122,182	1,048,775
Other									183,903	200,555	174,810
Total noninterest expense	$ 681,497	$ 712,247	$ 523,661	$ 491,080	$ 498,766	$ 526,508	$ 491,777	$ 458,857	2,408,485	1,975,908	1,882,346
Income before income taxes	312,915	151,753	228,823	226,271	233,892	199,590	260,263	219,860	919,762	913,605	852,985
Provision (benefit) for income taxes	73,952	24,749	54,283	54,957	55,583	47,002	64,057	54,006	207,941	220,648	220,593
Increase (decrease) in undistributed net income (loss) of:
Net income	$ 238,963	$ 127,004	$ 174,540	$ 171,314	$ 178,309	$ 152,588	$ 196,206	$ 165,854	711,821	692,957	632,392
Other comprehensive income (loss)									(174,858)	(3,866)
Parent Company
Dividends from
The Huntington National Bank									188,200	822,000	244,000
Non-bank subsidiaries									11,378	38,883	27,773
Interest from
The Huntington National Bank									13,892	5,954	3,906
Non-bank subsidiaries									2,221	2,317	2,613
Other income									0	4,529	2,994
Total income									215,691	873,683	281,286
Expense
Personnel costs									11,960	4,770	53,359
Interest on borrowings									59,027	17,428	17,031
Other									122,869	92,735	52,662
Total noninterest expense									193,856	114,933	123,052
Income before income taxes									21,835	758,750	158,234
Provision (benefit) for income taxes									(56,255)	(109,867)	(62,897)
Income (loss) before equity in undistributed net income of subsidiaries									78,090	868,617	221,131
Increase (decrease) in undistributed net income (loss) of:
The Huntington National Bank									629,220	(160,567)	414,049
Non-bank subsidiaries									4,511	(15,093)	(2,788)
Net income									711,821	692,957	632,392
Other comprehensive income (loss)									(174,858)	(3,866)	(8,283)
Comprehensive income									$ 536,963	$ 689,091	$ 624,109

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PARENT COMPANY FINANCIAL STATEMENTS - Cash Flow Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 238,963	$ 127,004	$ 174,540	$ 171,314	$ 178,309	$ 152,588	$ 196,206	$ 165,854	$ 711,821	$ 692,957	$ 632,392
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization									379,772	341,281	332,832
Loss on sales of securities available-for-sale									(2,035)	(3,184)	(17,554)
Net cash provided by (used for) operating activities									1,215,302	1,033,362	888,786
Investing activities
Sales of available-for-sale securities									6,154,326	163,224	1,152,907
Cash paid for acquisitions, net of cash received									(133,218)	(457,836)	691,637
Net cash provided by (used for) investing activities									(3,445,353)	(4,928,654)	(5,004,781)
Financing activities
Proceeds from issuance of long-term borrowings									2,127,750	3,232,227	2,000,000
Payment of borrowings									1,899,561	(1,818,947)	118,698
Net proceeds from issuance of common stock									0	0	2,597
Net proceeds from issuance of preferred stock									584,936	0	0
Repurchase of common stock									0	(251,844)	(334,429)
Other, net									5,122	5,583	4,635
Net cash provided by (used for) financing activities									2,767,665	3,521,883	4,335,428
Increase (decrease) in cash and cash equivalents									537,614	(373,409)	219,433
Cash and cash equivalents at beginning of period				847,156				1,220,565	847,156	1,220,565	1,001,132
Cash and cash equivalents at end of period	1,384,770				847,156				1,384,770	847,156	1,220,565
Supplemental disclosures:
Interest paid									241,073	153,590	131,488
Parent Company
Operating activities
Net income									711,821	692,957	632,392
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries									(633,730)	175,660	(411,261)
Depreciation and amortization									(1,390)	609	548
Loss on sales of securities available-for-sale									0	540	0
Other, net									(23,600)	(44,197)	26,685
Net cash provided by (used for) operating activities									53,101	825,569	248,364
Investing activities
Repayments from subsidiaries									464,284	494,905	9,250
Advances to subsidiaries									(1,758,745)	(612,610)	(32,350)
Sales of available-for-sale securities									(1,589)	449	0
Cash paid for acquisitions, net of cash received									(133,218)	0	(13,452)
Proceeds from business divestitures									0	9,029	0
Net cash provided by (used for) investing activities									(1,429,268)	(108,227)	(36,552)
Financing activities
Proceeds from issuance of long-term borrowings									1,989,938	0	0
Payment of borrowings									(64,586)	0	0
Dividends paid on stock									(299,588)	(224,390)	(198,789)
Net proceeds from issuance of common stock									0	0	2,597
Net proceeds from issuance of preferred stock									584,936	0	0
Repurchase of common stock									0	(251,844)	(334,429)
Other, net									988	13,492	15,512
Net cash provided by (used for) financing activities									2,211,688	(462,742)	(515,109)
Increase (decrease) in cash and cash equivalents									835,521	254,600	(303,297)
Cash and cash equivalents at beginning of period				$ 917,368				$ 662,768	917,368	662,768	966,065
Cash and cash equivalents at end of period	$ 1,752,889				$ 917,368				1,752,889	917,368	662,768
Supplemental disclosures:
Interest paid									$ 36,068	$ 17,384	$ 21,321

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SEGMENT REPORTING (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) segments	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting [Abstract]
Number of reporting segments | segments									5
Segment Reporting Information [Line Items]
Net interest income	$ 734,981	$ 625,390	$ 505,881	$ 503,066	$ 496,911	$ 495,455	$ 490,686	$ 467,685	$ 2,369,318	$ 1,950,737	$ 1,837,141
Provision for credit losses	74,906	63,805	24,509	27,582	36,468	22,476	20,419	20,591	190,802	99,954	80,989
Noninterest income	334,337	302,415	271,112	241,867	272,215	253,119	281,773	231,623	1,149,731	1,038,730	979,179
Noninterest expense	681,497	712,247	523,661	491,080	498,766	526,508	491,777	458,857	2,408,485	1,975,908	1,882,346
Provision (benefit) for income taxes	73,952	24,749	54,283	54,957	55,583	47,002	64,057	54,006	207,941	220,648	220,593
Net income	238,963	$ 127,004	$ 174,540	$ 171,314	178,309	$ 152,588	$ 196,206	$ 165,854	711,821	692,957	632,392
Total assets	99,714,097				71,018,301				99,714,097	71,018,301
Deposits	75,607,717				55,294,979				75,607,717	55,294,979
Operating Segments | Consumer & Business Banking
Segment Reporting Information [Line Items]
Net interest income									1,272,713	1,027,950	912,992
Provision for credit losses									71,945	42,777	75,529
Noninterest income									558,811	478,142	409,746
Noninterest expense									1,208,585	1,099,779	982,288
Provision (benefit) for income taxes									192,848	127,238	92,722
Net income									358,146	236,298	172,199
Total assets	21,796,887				15,759,561				21,796,887	15,759,561
Deposits	44,860,515				30,964,241				44,860,515	30,964,241
Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Net interest income									512,995	379,409	306,434
Provision for credit losses									98,816	49,534	31,521
Noninterest income									275,258	258,778	209,238
Noninterest expense									385,783	284,026	249,300
Provision (benefit) for income taxes									106,279	106,619	82,198
Net income									197,375	198,008	152,653
Total assets	23,918,429				17,022,387				23,918,429	17,022,387
Deposits	15,616,241				11,498,883				15,616,241	11,498,883
Operating Segments | CREVF
Segment Reporting Information [Line Items]
Net interest income									468,969	381,231	379,363
Provision for credit losses									26,922	4,890	(52,843)
Noninterest income									40,582	29,254	26,628
Noninterest expense									170,276	152,010	156,715
Provision (benefit) for income taxes									109,324	88,755	105,742
Net income									203,029	164,830	196,377
Total assets	23,580,331				17,856,358				23,580,331	17,856,358
Deposits	1,886,626				1,649,301				1,886,626	1,649,301
Operating Segments | RBHPCG
Segment Reporting Information [Line Items]
Net interest income									177,431	139,188	101,839
Provision for credit losses									(3,467)	87	4,893
Noninterest income									120,687	114,814	173,550
Noninterest expense									196,194	195,667	236,634
Provision (benefit) for income taxes									36,887	20,387	11,852
Net income									68,504	37,861	22,010
Total assets	5,553,012				4,277,970				5,553,012	4,277,970
Deposits	8,521,401				7,530,241				8,521,401	7,530,241
Operating Segments | Home Lending
Segment Reporting Information [Line Items]
Net interest income									58,354	50,404	58,015
Provision for credit losses									(3,412)	2,671	21,889
Noninterest income									90,358	87,021	69,899
Noninterest expense									124,683	144,848	136,374
Provision (benefit) for income taxes									9,604	(3,533)	(10,622)
Net income									17,837	(6,561)	(19,727)
Total assets	3,502,304				3,080,690				3,502,304	3,080,690
Deposits	639,418				361,881				639,418	361,881
Treasury / Other
Segment Reporting Information [Line Items]
Net interest income									(121,144)	(27,445)	78,498
Provision for credit losses									(2)	(5)	0
Noninterest income									64,035	70,721	90,118
Noninterest expense									322,964	99,578	121,035
Provision (benefit) for income taxes									(247,001)	(118,818)	(61,299)
Net income									(133,070)	62,521	$ 108,880
Total assets	21,363,134				13,021,335				21,363,134	13,021,335
Deposits	$ 4,083,516				$ 3,290,432				$ 4,083,516	$ 3,290,432

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QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 814,858	$ 694,346	$ 565,658	$ 557,251	$ 544,153	$ 538,477	$ 529,795	$ 502,096	$ 2,632,113	$ 2,114,521	$ 1,976,462
Interest expense	79,877	68,956	59,777	54,185	47,242	43,022	39,109	34,411	262,795	163,784	139,321
Net interest income	734,981	625,390	505,881	503,066	496,911	495,455	490,686	467,685	2,369,318	1,950,737	1,837,141
Provision for credit losses	74,906	63,805	24,509	27,582	36,468	22,476	20,419	20,591	190,802	99,954	80,989
Noninterest income	334,337	302,415	271,112	241,867	272,215	253,119	281,773	231,623	1,149,731	1,038,730	979,179
Noninterest expense	681,497	712,247	523,661	491,080	498,766	526,508	491,777	458,857	2,408,485	1,975,908	1,882,346
Income before income taxes	312,915	151,753	228,823	226,271	233,892	199,590	260,263	219,860	919,762	913,605	852,985
Provision for income taxes	73,952	24,749	54,283	54,957	55,583	47,002	64,057	54,006	207,941	220,648	220,593
Net income	238,963	127,004	174,540	171,314	178,309	152,588	196,206	165,854	711,821	692,957	632,392
Dividends on preferred shares	18,865	18,537	19,874	7,998	7,972	7,968	7,968	7,965	65,274	31,873	31,854
Net income available to common shareholders	$ 220,098	$ 108,467	$ 154,666	$ 163,316	$ 170,337	$ 144,620	$ 188,238	$ 157,889	$ 646,547	$ 661,084	$ 600,538
Basic earnings per common share (in USD per share)	$ 0.20	$ 0.12	$ 0.19	$ 0.21	$ 0.21	$ 0.18	$ 0.23	$ 0.19	$ 0.72	$ 0.82	$ 0.73
Diluted earnings per common share (in USD per share)	$ 0.20	$ 0.11	$ 0.19	$ 0.20	$ 0.21	$ 0.18	$ 0.23	$ 0.19	$ 0.70	$ 0.81	$ 0.72

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SUBSEQUENT EVENTS SUBSEQUENT EVENTS (Details) - FirstMerit Bank $ / shares in Units, $ in Billions	Aug. 16, 2016 USD ($) $ / shares
Business Combination, Separately Recognized Transactions [Line Items]
Stock and cash value of merger | $	$ 3.7
Consideration transfered (in shares per share)	$ 1.72
Cash transfered (in USD per share)	$ 5.00