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Other Long-term Debt (Details) (USD $)
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3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Dec. 31, 2014
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| Debt Instrument [Line Items] | ||
| Debt Instrument, Carrying Amount | $ 317,082,000us-gaap_DebtInstrumentCarryingAmount | |
| Long-term borrowings | 5,158,836,000us-gaap_LongTermDebt | 4,335,962,000us-gaap_LongTermDebt |
| Debt Instrument, Maturity Date, Description | no longer than 90 days | |
| Debt Instrument, Description of Variable Rate Basis | three month LIBOR | |
| Senior Note Payable Due April 2017 Fixed | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Maturity Date, Description | 4/1/2020 | |
| DebtInstrumentFaceAmount |
500,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = hban_SeniorNotepayabledueapril2017fixedMember |
|
| DebtInstrumentInterestRateStatedPercentage |
2.40%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = hban_SeniorNotepayabledueapril2017fixedMember |
|
| DebtInstrumentpercentofvalue |
99.874%hban_Debtinstrumentpercentfacevalue / us-gaap_LongtermDebtTypeAxis = hban_SeniorNotepayabledueapril2017fixedMember |
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| Senior Note Payable Due April 2017 Variable | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Maturity Date, Description | 12/31/1899 | |
| Debt Instrument, Description of Variable Rate Basis | 0 | |
| Debt Instrument, Basis Spread on Variable Rate |
0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = hban_Seniornotepayabledueapril2017variableMember |
|
| Senior Note Payable Due April 2019 Fixed | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Maturity Date, Description | 02/26/18 | |
| DebtInstrumentFaceAmount |
500,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = hban_Seniornotepayabledueapril2019fixedMember |
|
| DebtInstrumentInterestRateStatedPercentage |
1.70%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = hban_Seniornotepayabledueapril2019fixedMember |
|
| DebtInstrumentpercentofvalue |
99.86%hban_Debtinstrumentpercentfacevalue / us-gaap_LongtermDebtTypeAxis = hban_Seniornotepayabledueapril2019fixedMember |
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| Macquarie Equipment Finance [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Interest Rate, Effective Percentage |
3.24%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = hban_MacquarieEquipmentFinanceMember |
|
| Debt Instrument, Maturity Date, Description | various | |
| UnsecuredDebt |
293,400,000us-gaap_UnsecuredDebt / us-gaap_LongtermDebtTypeAxis = hban_MacquarieEquipmentFinanceMember |
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| Macquarie Equipment Finance2 [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Interest Rate, Effective Percentage |
1.70%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = hban_MacquarieEquipmentFinance2Member |
|
| Long-term borrowings |
$ 254,800,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = hban_MacquarieEquipmentFinance2Member |
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| Debt Instrument, Maturity Date, Description | various |
| X | ||||||||||
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- Definition
The percentage of face value that was originally paid at the issuance of the instrument that has yet to be amortized. No definition available.
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| X | ||||||||||
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- Definition
Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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| X | ||||||||||
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- Definition
Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. No definition available.
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| X | ||||||||||
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- Definition
Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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