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

Subsequent Event (Detail Textuals)	3 Months Ended
Subsequent Event (Detail Textuals)	Mar. 31, 2014
Subsequent Event Line Items
Subsequent Event Description	On April 9, 2014, Huntington announced the signing of a definitive agreement under which Huntington National Bank will purchase 11 branches in Central and East Michigan from Bank of America Corporation. Huntington will purchase approximately $450 million in deposits, for a deposit premium of 3.5 percent based on deposit balances near the time the transaction closes. The transaction to acquire branches and deposits excludes loans and is expected to be completed in the second half of 2014, subject to the satisfaction of customary closing conditions, including regulatory approvals. In April 2014, the Bank issued $500.0 million of senior notes at 99.842% of face value. The senior note issuances mature on April 24, 2017 and have a fixed coupon rate of 1.375%. In April 2014, the Bank also issued $250.0 million of senior notes at 100.0% of face value. The senior bank note issuances mature on April 24, 2017 and have a variable coupon rate equal to the three month LIBOR plus 0.425%. Both senior note issuances may be redeemed one month prior to their maturity date at 100% of principal plus accrued and unpaid interest.