FAIR VALUES OF ASSETS AND LIABILITIES (Tables)

v3.7.0.1

FAIR VALUES OF ASSETS AND LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Assets and liabilities measured at fair value on a recurring basis	Assets and Liabilities measured at fair value on a recurring basis Assets and liabilities measured at fair value on a recurring basis at June 30, 2017 and December 31, 2016 are summarized below:   Fair Value Measurements at Reporting Date Using   Netting Adjustments (1)   June 30, 2017 (dollar amounts in thousands) Level 1   Level 2   Level 3     Assets                   Loans held for sale $ —   $ 654,087   $ —   $ —   $ 654,087 Loans held for investment —   59,886   43,855   —   103,741 Trading account securities:                   Federal agencies: Other agencies —   6,868   —   —   6,868 Municipal securities —   323   —   —   323 Other securities 86,560   1,016   —   —   87,576   86,560   8,207   —   —   94,767 Available-for-sale and other securities:                   U.S. Treasury securities 10,644   —   —   —   10,644 Federal agencies: Mortgage-backed —   10,624,055   —   —   10,624,055 Federal agencies: Other agencies —   100,291   —   —   100,291 Municipal securities —   440,493   2,872,007   —   3,312,500 Asset-backed securities —   552,224   42,575   —   594,799 Corporate debt —   144,035   —   —   144,035 Other securities 12,485   4,026   —   —   16,511   23,129   11,865,124   2,914,582   —   14,802,835 MSRs —   —   12,528   —   12,528 Derivative assets —   325,736   9,227   (144,951 )   190,012 Liabilities                   Derivative liabilities —   284,796   6,049   (212,487 )   78,358 Short-term borrowings 4,580   —   —   —   4,580   Fair Value Measurements at Reporting Date Using   Netting Adjustments (1)   December 31, 2016 (dollar amounts in thousands) Level 1   Level 2   Level 3     Assets                   Loans held for sale $ —   $ 438,224   $ —   $ —   $ 438,224 Loans held for investment —   34,439   47,880   —   82,319 Trading account securities:                   Municipal securities —   1,148   —   —   1,148 Other securities 132,147   —   —   —   132,147   132,147   1,148   —   —   133,295 Available-for-sale and other securities:                   U.S. Treasury securities 5,497   —   —   —   5,497 Federal agencies: Mortgage-backed —   10,673,342   —   —   10,673,342 Federal agencies: Other agencies —   73,542   —   —   73,542 Municipal securities —   452,013   2,798,044   —   3,250,057 Asset-backed securities —   717,478   76,003   —   793,481 Corporate debt —   198,683   —   —   198,683 Other securities 16,588   3,943   —   —   20,531   22,085   12,119,001   2,874,047   —   15,015,133 MSRs —   —   13,747   —   13,747 Derivative assets —   414,412   5,747   (181,940 )   238,219 Liabilities                   Derivative liabilities —   362,777   7,870   (272,361 )   98,286 Short-term borrowings 474   —   —   —   474 (1) Amounts represent the impact of legally enforceable master netting agreements that allow the Company to settle positive and negative positions and cash collateral held or placed with the same counterparties.
Rollforward of financial instruments measured on a recurring basis and classified as Level 3	Level 3 Fair Value Measurements Three Months Ended June 30, 2017           Available-for-sale securities     (dollar amounts in thousands) MSRs   Derivative instruments   Municipal securities   Asset- backed securities   Loans held for investment Opening balance $ 13,307   $ 2,694   $ 2,867,652   $ 59,492   $ 44,219 Transfers into Level 3 —   —   —   —   — Transfers out of Level 3 (1) —   (2,124 )   —   —   — Total gains/losses for the period:                   Included in earnings (779 )   2,608   (1,180 )   (3,557 )   1,493 Included in OCI —   —   12,419   5,598   — Purchases/originations —   —   114,944   —   — Sales —   —   —   (18,594 )   — Repayments —   —   —   —   (1,857 ) Issues —   —   —   —   — Settlements —   —   (121,828 )   (364 )   — Closing balance $ 12,528   $ 3,178   $ 2,872,007   $ 42,575   $ 43,855 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 $ (779 )   $ 2,608   $ 12,419   $ 5,598   $ —                       Level 3 Fair Value Measurements Three Months Ended June 30, 2016           Available-for-sale securities     (dollar amounts in thousands) MSRs   Derivative instruments   Municipal securities   Asset- backed securities   Loans held for investment Opening balance $ 14,819   $ 10,347   $ 2,281,743   $ 94,329   $ 1,216 Transfers into Level 3 —   —   —   —   — Transfers out of Level 3 (1) —   (2,508 )   —   —   — Total gains/losses for the period:                   Included in earnings (1,714 )   4,912   —   2   — Included in OCI —   —   7,486   5,842   — Purchases/originations —   —   46,457   —   — Sales —   —   (36,657 )   (27,794 )   — Repayments —   —   —   —   (291 ) Issues —   —   —   —   — Settlements —   —   (61,054 )   (1,000 )   — Closing balance $ 13,105   $ 12,751   $ 2,237,975   $ 71,379   $ 925 Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date $ (1,714 )   $ 4,912   $ —   $ 2   $ — (1) Transfers out of Level 3 represent the settlement value of the derivative instruments (i.e. interest rate lock agreements) that were transferred to loans held for sale, which are classified as Level 2.   Level 3 Fair Value Measurements Six Months Ended June 30, 2017           Available-for-sale securities       (dollar amounts in thousands) MSRs   Derivative instruments   Municipal securities   Asset- backed securities   Loans held for investment   Opening balance $ 13,747   $ (2,123 )   $ 2,798,044   $ 76,003   $ 47,880   Transfers into Level 3 —   —   —   —   —   Transfers out of Level 3 (1) —   (2,457 )   —   —   —   Total gains/losses for the period:                     Included in earnings (1,219 )   7,758   (2,975 )   (3,528 )   1,430   Included in OCI —   —   32,894   8,769   —   Purchases/originations —   —   247,609   —   —   Sales —   —   —   (37,728 )   —   Repayments —   —   —   —   (5,455 )   Issues —   —   —   —   —   Settlements —   —   (203,565 )   (941 )   —   Closing balance $ 12,528   $ 3,178   $ 2,872,007   $ 42,575   $ 43,855   Change in unrealized gains or losses for the period included in earnings (or changes in net assets) for assets held at end of the reporting date $ (1,219 )   $ 7,758   $ 32,894   $ 8,769   $ —     Level 3 Fair Value Measurements Six Months Ended June 30, 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) —   (3,423 )   —   —   — Total gains/losses for the period:                   Included in earnings (4,480 )   10,118   —   2   — Included in OCI —   —   19,326   674   — Purchases/originations —   —   283,907   —   — Sales —   —   (36,657 )   (27,794 )   — Repayments —   —   —   —   (823 ) Issues —   —   —   —   — Settlements —   —   (124,152 )   (1,840 )   — Closing balance $ 13,105   $ 12,751   $ 2,237,975   $ 71,379   $ 925 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 $ (4,480 )   $ 10,218   $ —   $ 2   $ —
Classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities	The tables below summarize the classification of gains and losses due to changes in fair value, recorded in earnings for Level 3 assets and liabilities for the three-month and six-month periods ended June 30, 2017 and 2016:                       Level 3 Fair Value Measurements Three Months Ended June 30, 2017           Available-for-sale securities     (dollar amounts in thousands) MSRs   Derivative instruments   Municipal securities   Asset- backed securities   Loans held for investment Classification of gains and losses in earnings:                   Mortgage banking income $ (779 )   $ 2,608   $ —   $ —   $ — Securities gains (losses) —   —   (1,180 )   (3,557 )   — Interest and fee income —   —   —   —   — Noninterest income —   —   —   —   1,493 Other expense —   —   —   —   — Total $ (779 )   $ 2,608   $ (1,180 )   $ (3,557 )   $ 1,493                       Level 3 Fair Value Measurements Three Months Ended June 30, 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 $ (1,714 )   $ 4,912   $ —   $ —   $ — Securities gains (losses) —   —   —   —   — Interest and fee income —   —   —   —   — Noninterest income —   —   —   2   — Other expense —   —   —   —   — Total $ (1,714 )   $ 4,912   $ —   $ 2   $ —   Level 3 Fair Value Measurements Six Months Ended June 30, 2017           Available-for-sale securities     (dollar amounts in thousands) MSRs   Derivative instruments   Municipal securities   Asset- backed securities   Loans held for investment Classification of gains and losses in earnings:                   Mortgage banking income $ (1,219 )   $ 7,758   $ —   $ —   $ — Securities gains (losses) —   —   (2,975 )   (3,528 )   — Interest and fee income —   —   —   —   — Noninterest income —   —   —   —   1,430 Other expense —   —   —   —   — Total $ (1,219 )   $ 7,758   $ (2,975 )   $ (3,528 )   $ 1,430   Level 3 Fair Value Measurements Six Months Ended June 30, 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 $ (4,480 )   $ 10,118   $ —   $ —   $ — Securities gains (losses) —   —   —   —   — Interest and fee income —   —   —   —   — Noninterest income —   —   —   2   — Other expense —   —   —   —   — Total $ (4,480 )   $ 10,118   $ —   $ 2   $ —
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:   June 30, 2017   Total Loans   Loans that are 90 or more days past due (dollar amounts in thousands) Fair value carrying amount   Aggregate unpaid principal   Difference   Fair value carrying amount   Aggregate unpaid principal   Difference Assets                       Loans held for sale $ 654,087   $ 628,684   $ 25,403   $ 72   $ 72   $ — Loans held for investment 103,741   113,114   (9,373 )   13,039   15,447   (2,408 )   December 31, 2016   Total Loans   Loans that are 90 or more days past due (dollar amounts in thousands) Fair value carrying amount   Aggregate unpaid principal   Difference   Fair value carrying amount   Aggregate unpaid principal   Difference Assets                       Loans held for sale $ 438,224   $ 433,760   $ 4,464   $ —   $ —   $ — Loans held for investment 82,319   91,998   (9,679 )   8,408   11,082   (2,674 ) The following tables present the net gains (losses) from fair value changes for the three-month and six-month periods ended June 30, 2017 and 2016:     Net gains (losses) from fair value changes   Net gains (losses) from fair value changes     Three Months Ended June 30,   Six Months Ended June 30, (dollar amounts in thousands)   2017   2016   2017   2016 Assets                 Loans held for sale   $ 4,551   $ 8,870   $ 13,616   $ 13,519 Loans held for investment   1,493   —   1,430   —
Assets measured at fair value on a nonrecurring basis	ssets measured at fair value on a nonrecurring basis were as follows:       Fair Value Measurements Using     (dollar amounts in thousands) Fair Value   Quoted Prices In Active Markets for Identical Assets (Level 1)   Significant Other Observable Inputs (Level 2)   Significant Other Unobservable Inputs (Level 3)   Total Gains/(Losses) Six Months Ended June 30, 2017 MSRs $ 175,454   $ —   $ —   $ 175,454   $ (1,006 ) Impaired loans 36,118   —   —   36,118   (3,123 ) Other real estate owned 43,816   —   —   43,816   1,742
Quantitative information about significant unobservable level 3 fair value measurement inputs	Quantitative Information about Level 3 Fair Value Measurements at June 30, 2017 (dollar amounts in thousands) Fair Value   Valuation Technique   Significant Unobservable Input   Range (Weighted Average) Measured at fair value on a recurring basis: MSRs $ 12,528   Discounted cash flow   Constant prepayment rate   8.0% - 31.0% (11%)           Spread over forward interest rate swap rates   3.0% - 10.0% (8.8%) Derivative assets 9,227   Consensus Pricing   Net market price   -9.2% - 31.7% (1.8%) Derivative liabilities 6,049       Estimated Pull through %   9.0% - 99.0% (78.0%) Municipal securities 2,872,007   Discounted cash flow   Discount rate   0.0% - 10.3% (3.9%)           Cumulative default   0.0% - 38.4% (2.7%)           Loss given default   5.0% - 80.0% (23.2%) Asset-backed securities 42,575   Discounted cash flow   Discount rate   6.9% - 12.3% (7.0%)           Cumulative prepayment rate   0.0% - 72% (8.2%)           Cumulative default   0.7% - 100% (10.2%)           Loss given default   85% - 100% (96.6%)           Cure given deferral   0.0% - 75% (37.7%) Loans held for investment 43,855   Discounted cash flow   Discount rate   7.0% - 17.6% (6.6%) Measured at fair value on a nonrecurring basis: MSRs 175,454   Discounted cash flow   Constant prepayment rate   7.0% - 21.0% (8%)           Spread over forward interest rate swap rates   3.0% - 20.0% 10.8%) Impaired loans 36,118   Appraisal value   NA   NA Other real estate owned 43,816   Appraisal value   NA   NA   Quantitative Information about Level 3 Fair Value Measurements at December 31, 2016 (dollar amounts in thousands) Fair Value   Valuation Technique   Significant Unobservable Input   Range (Weighted Average) Measured at fair value on a recurring basis: MSRs $ 13,747   Discounted cash flow   Constant prepayment rate   5.63% - 34.4% (10.9%)           Spread over forward interest rate swap rates   3.0% - 9.2% (5.4%) Derivative assets 5,747   Consensus Pricing   Net market price   -7.1% - 25.4% (1.1%) Derivative liabilities 7,870       Estimated Pull through %   8.1% - 99.8% (76.9%) Municipal securities 2,798,044   Discounted cash flow   Discount rate   0.0% - 10.0% (3.6%)           Cumulative default   0.3% - 37.8% (4.0%)           Loss given default   5.0% - 80.0% (24.1%) Asset-backed securities 76,003   Discounted cash flow   Discount rate   5.0% - 12.0% (6.3%)           Cumulative prepayment rate   0.0% - 73% (6.5%)           Cumulative default   1.1% - 100% (11.2%)           Loss given default   85% - 100% (96.3%)           Cure given deferral   0.0% - 75.0% (36.2%) Loans held for investment 47,880   Discounted cash flow   Constant prepayment rate   5.4% - 16.2% (5.6%) Measured at fair value on a nonrecurring basis: MSRs 171,309   Discounted cash flow   Constant prepayment rate   5.57% - 30.4% (7.8%)           Spread over forward interest rate swap rates   4.2% - 20.0% (11.7%) Impaired loans 53,818   Appraisal value   NA   NA Other real estate owned 50,930   Appraisal value   NA   NA
Carrying amounts and estimated fair values of financial instruments	The following table provides the carrying amounts and estimated fair values of Huntington’s financial instruments that are carried either at fair value or cost at June 30, 2017 and December 31, 2016:   June 30, 2017   December 31, 2016 (dollar amounts in thousands) Carrying Amount   Fair Value   Carrying Amount   Fair Value Financial Assets               Cash and short-term assets $ 1,592,624   $ 1,592,624   $ 1,443,037   $ 1,443,037 Trading account securities 94,767   94,767   133,295   133,295 Loans held for sale 748,077   752,800   512,951   515,640 Available-for-sale and other securities 15,388,306   15,388,306   15,562,837   15,562,837 Held-to-maturity securities 8,279,577   8,259,402   7,806,939   7,787,268 Net loans and direct financing leases 67,391,314   67,263,687   66,323,583   66,294,639 Derivatives 190,012   190,012   238,219   238,219 Financial Liabilities               Deposits 75,933,373   77,382,067   75,607,717   76,161,091 Short-term borrowings 4,552,877   4,552,877   3,692,654   3,692,654 Long-term debt 8,536,471   8,673,908   8,309,159   8,387,444 Derivatives 78,358   78,358   98,286   98,286 The following table presents the level in the fair value hierarchy for the estimated fair values of only Huntington’s financial instruments that are not already on the Unaudited Condensed Consolidated Balance Sheets at fair value at June 30, 2017 and December 31, 2016:   Estimated Fair Value Measurements at Reporting Date Using   June 30, 2017 (dollar amounts in thousands) Level 1   Level 2   Level 3   Financial Assets               Held-to-maturity securities $ —   $ 8,259,402   $ —   $ 8,259,402 Net loans and direct financing leases —   —   67,263,687   67,263,687 Financial Liabilities               Deposits —   73,621,776   3,760,291   77,382,067 Short-term borrowings 4,580   —   4,548,297   4,552,877 Long-term debt —   8,278,588   395,320   8,673,908   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