Annual report pursuant to Section 13 and 15(d)

Held-to-Maturity Securities (Details Textuals)

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Held-to-Maturity Securities (Details Textuals) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of Held-to-maturity Securities [Line Items]      
Available for sale securities transferred to held to maturity securities $ 0hban_AvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities $ 292,200,000hban_AvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities  
Purchases of held-to-maturity securities 0us-gaap_PaymentsToAcquireHeldToMaturitySecurities 2,081,373,000us-gaap_PaymentsToAcquireHeldToMaturitySecurities 941,119,000us-gaap_PaymentsToAcquireHeldToMaturitySecurities
Held-to-Maturity Securities (Textuals)      
Unrealized net losses recognized in OCI at time of transfer of available for sale securities transferred to Held To Maturity Securities $ 0hban_UnrealizedNetLossesRecognizedInOciAtTimeOfTransferOfAvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities $ 0hban_UnrealizedNetLossesRecognizedInOciAtTimeOfTransferOfAvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities