|
Available-for-Sale and Other Securities (Credit Ratings) (Details 2) (USD $)
In Thousands, unless otherwise specified
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Dec. 31, 2014
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Dec. 31, 2013
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Amortized Cost |
$ 182,924us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
$ 212,968us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
| Fair Value |
124,664us-gaap_AvailableForSaleSecuritiesDebtSecurities
|
133,240us-gaap_AvailableForSaleSecuritiesDebtSecurities
|
| AAA [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
11,461us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaaMember
|
16,964us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaaMember
|
| AA +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaPlusMinusMember
|
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaPlusMinusMember
|
| A +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_PlusMinusMember
|
17,855us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_PlusMinusMember
|
| BBB +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
10,161us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbPlusMinusMember
|
11,785us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbPlusMinusMember
|
| Less Than BBB- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
103,042us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbLessThanMember
|
86,636us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbLessThanMember
|
| Alt-A Mortgage-backed [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Amortized Cost |
0us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Alt-A Mortgage-backed [Member] | AAA [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaaMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Alt-A Mortgage-backed [Member] | AA +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Alt-A Mortgage-backed [Member] | A +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_PlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Alt-A Mortgage-backed [Member] | BBB +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Alt-A Mortgage-backed [Member] | Less Than BBB- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbLessThanMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
|
|
| Pooled Trust Preferred [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Amortized Cost |
139,194us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
161,730us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
| Fair Value |
82,738us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
84,136us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
| Pooled Trust Preferred [Member] | AAA [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaaMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
|
| Pooled Trust Preferred [Member] | AA +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
|
| Pooled Trust Preferred [Member] | A +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_PlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
|
| Pooled Trust Preferred [Member] | BBB +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
|
| Pooled Trust Preferred [Member] | Less Than BBB- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
82,738us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbLessThanMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CollateralizedDebtObligationsMember
|
|
| Private label CMO [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Amortized Cost |
43,730us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Fair Value |
41,926us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Private label CMO [Member] | AAA [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
11,461us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaaMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Private label CMO [Member] | AA +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_AaPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Private label CMO [Member] | A +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
0us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_PlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Private label CMO [Member] | BBB +/- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
10,161us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbPlusMinusMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
|
| Private label CMO [Member] | Less Than BBB- [Member] |
|
|
| Schedule of Credit Rating by Investment Security Type [Line Items] |
|
|
| Fair Value |
$ 20,304us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ hban_CreditRatingsAxis
= hban_BbbLessThanMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
|
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