Quarterly report pursuant to Section 13 or 15(d)

Shareholder's Equity (Details)

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Shareholder's Equity (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Shareholder's Equity (Textuals) [Abstract]    
StockRepurchaseProgramAuthorizedAmount $ 366,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1  
Purchase of common stock shares, value $ (51,707,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue $ (136,137,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Purchase of common stock, average price per share $ 10.45hban_CommonStockRepurchasedAndRetiredAverageCostPerShare $ 9.32hban_CommonStockRepurchasedAndRetiredAverageCostPerShare