Huntington Bancshares Incorporated Annual report pursuant to Section 13 and 15(d)

Fair Values of Assets and Liabilities (Fair value option) (Details 3)

v2.4.1.9

Fair Values of Assets and Liabilities (Fair value option) (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Mortgages Held For Sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 354,888	$ 278,928
Mortgages Held For Sale, Unpaid Principal	340,070	276,945
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables	14,818	1,983
Automobile Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans Receivable, Fair Value Disclosure	10,590	52,286
Loans Receivable, Unpaid Principal	10,022	50,800
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables	568	1,486
Securitization Trust Notes Payable
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term Debt, Fair Value	0	0
Long-term Debt, Unpaid Principal	0	0
Fair Value, Option, Aggregate Differences, Long-term Debt Instruments	$ 0	$ 0

- Definition

For loan receivables for which the fair value option has been elected, this item represents the aggregate unpaid principal balance.

+ References

No definition available.

+ Details

Name:	hban_LoansReceivableUnpaidPrincipal
Namespace Prefix:	hban_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For long-term debt for which the fair value option has been elected, this item represents the aggregate unpaid principal balance.

+ References

No definition available.

+ Details

Name:	hban_LongTermDebtUnpaidPrincipal
Namespace Prefix:	hban_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For mortgages held for sale for which the fair value option has been elected, this item represents the aggregate unpaid principal balance.

+ References

No definition available.

+ Details

Name:	hban_MortgagesHeldForSaleUnpaidPrincipal
Namespace Prefix:	hban_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 28

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

+ Details

Name:	us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of long-term debt instruments that have contractual principal amounts and for which the fair value option has been elected.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 28

-Subparagraph (d)(2)

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

+ Details

Name:	us-gaap_FairValueOptionAggregateDifferencesLongTermDebtInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_FairValueOptionQuantitativeDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Glossary Loan

-URI http://asc.fasb.org/extlink&oid=6517073

+ Details

Name:	us-gaap_LoansReceivableFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of mortgage loans held-for-sale.

+ References

No definition available.

+ Details

Name:	us-gaap_MortgagesHeldForSaleFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_EligibleItemOrGroupForFairValueOptionAxis=hban_FairValueLiabilitiesMeasuredOnRecurringBasisSecuritizationTrustNotesPayableMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_EligibleItemOrGroupForFairValueOptionAxis=hban_FairValueMeasuredOnRecurringBasisAutomobileLoanMember
Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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