Huntington Bancshares Incorporated Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingent Liabilities (Details Textual)

Commitments and Contingent Liabilities (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Additional Commitments and Contingent Liabilities (Textuals) [Abstract]
Maturity period of majority of standby letters of credit	within two years
Carrying amount of deferred revenue associated with guarantees	$ 6,600,000us-gaap_DeferredRevenue	$ 4,400,000us-gaap_DeferredRevenue
Maturity period of Commercial letters of credit	no longer than 90 days
Percentage of Outstanding standby letters of credit collateralized	80.00%
Commitments and Contingent Liabilities (Textuals) [Abstract]
Commitments to sell residential real estate loans	873,400,000	545,000,000
Maturity period of forward contracts relating mortgage banking business	less than one year
Gross unrecognized tax benefit	24,300,000us-gaap_UnrecognizedTaxBenefits	1,200,000us-gaap_UnrecognizedTaxBenefits	2,800,000us-gaap_UnrecognizedTaxBenefits
Total interest accrued on the unrecognized tax benefits	300,000	100,000	200,000
Aggregate range of reasonably possible losses current legal proceedings, Min	0
Aggregate range of reasonably possible losses current legal proceedings, Max	110,000,000
Recovery from the bank as a form of unjust enrichment	1,900,000
Direct damage claimed by Plantiffs	32,000,000hban_DirectDamageClaimedByPlantiffs
Additional consequential damages by plantiffs	excess of $20.0 million
Bankruptcy trustee alleging for the amount	70,000,000hban_BankruptcyTrusteeAllegingForAmount
Preferential transfer alleged by bankruptcy trustee	1,200,000
Fraudulent transfers alleged by Teleservices bankruptcy trustee	73,000,000
Credit related to recoveries in preference actions filed	4,000,000
Bankruptcy trustee unable to recover	900,000hban_BankruptcyTrusteeUnableToRecover
Bankruptcy Court recommended judgment amount in Cyberco case, principal	71,800,000
Bankruptcy Court recommended judgment amount in Cyberco case, interest	8,800,000
Standby Letters of Credit [Member]
Additional Commitments and Contingent Liabilities (Textuals) [Abstract]
Outstanding standby letters of credit	474,224,000	497,457,000
Risk Level, Low [Member]
Additional Commitments and Contingent Liabilities (Textuals) [Abstract]
Outstanding standby letters of credit	181,000,000
Risk Level, Medium [Member]
Additional Commitments and Contingent Liabilities (Textuals) [Abstract]
Outstanding standby letters of credit	293,000,000
Risk Level, High [Member]
Additional Commitments and Contingent Liabilities (Textuals) [Abstract]
Outstanding standby letters of credit	$ 0