Quarterly report pursuant to Section 13 or 15(d)

Share Based Compensation (RSU/RSA) (Details 3)

v2.4.1.9
Share Based Compensation (RSU/RSA) (Details 3) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Summary of restricted stock units and restricted stock awards    
Granted, weighted average grant date fair value per share $ 10.69us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 9.13us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Restricted stock awards [Member]    
Summary of restricted stock units and restricted stock awards    
Nonvested Beginning balance 12us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Nonvested Beginning balance, Weighted average grant date fair value per share $ 9.53us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Granted, weighted average grant date fair value per share $ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Assumed 0hban_Acquired
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Assumed, Weighted Average Grant Date Fair Value Per Share $ 0hban_AcquiredWeightedAverageGrantDateFairValuePerShare
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Released 3us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Released, Weighted average grant date fair value per share $ 9.53us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Forfeited 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Forfeited, Weighted average grant date fair value per share $ 0hban_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Nonvested Ending balance 9us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Nonvested, Weighted average grant date fair value per share $ 9.53us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_RestrictedStockAwardsMember
 
Restricted Stock Unit [Member]    
Summary of restricted stock units and restricted stock awards    
Nonvested Beginning balance 11,904us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Nonvested Beginning balance, Weighted average grant date fair value per share $ 7.79us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Granted 1,274us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Granted, weighted average grant date fair value per share $ 10.69us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Released (1,442)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Released, Weighted average grant date fair value per share $ 7.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Forfeited (66)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Forfeited, Weighted average grant date fair value per share $ 7.84hban_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Nonvested Ending balance 11,670us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Nonvested, Weighted average grant date fair value per share $ 8.14us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= us-gaap_RestrictedStockUnitsRSUMember
 
Performance Share Awards [Member]    
Summary of restricted stock units and restricted stock awards    
Nonvested Beginning balance 2,579us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Nonvested Beginning balance, Weighted average grant date fair value per share $ 7.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Granted, weighted average grant date fair value per share $ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Released 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Released, Weighted average grant date fair value per share $ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Forfeited 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Forfeited, Weighted average grant date fair value per share $ 0hban_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Nonvested Ending balance 2,579us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember
 
Nonvested, Weighted average grant date fair value per share $ 7.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_PlanNameAxis
= hban_PerformanceShareAwardsMember