$HBAN
HUNTINGTON BANCSHARES INC /MD/ Stock $hban

$hban Overview Financials Valuation SEC Filings Company Website

2012 Form 10-K Financial Statement

#000119312513062480 Filed on February 15, 2013

Income Statement

Concept	2012	2011 Q4	2011 Q3
Revenue	$1.930B	$485.2M	$491.0M
YoY Change	-2.03%	-8.15%	-8.17%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$274.6M	$69.00M	$70.30M
YoY Change	-2.66%	-10.51%	-3.83%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$219.7M	$70.19M	$84.52M
YoY Change	-35.57%	-37.88%	-32.23%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$825.1M	$168.8M	$182.3M
YoY Change	16.67%	6.88%	39.57%
Income Tax	$202.3M	$41.95M	$38.94M
% Of Pretax Income	24.52%	24.85%	21.36%
Net Earnings	$631.3M	$126.9M	$143.4M
YoY Change	16.34%	3.22%	42.05%
Net Earnings / Revenue	32.7%	26.14%	29.2%
Basic Earnings Per Share	$0.70	$0.14	$0.16
Diluted Earnings Per Share	$0.69	$0.14	$0.16
COMMON SHARES
Basic Shares Outstanding	858.0M shares	864.4M shares	863.9M shares
Diluted Shares Outstanding	863.4M shares		867.6M shares

Balance Sheet

Concept	2012	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$1.263B	$2.190B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$617.0M	$564.4M	$543.3M
YoY Change	9.4%	14.81%	11.03%
Goodwill		$444.3M	$444.3M
YoY Change		0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$56.15B	$54.45B	$54.98B
YoY Change	3.13%	1.17%	3.25%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$1.156B	$1.214B	$1.161B
YoY Change	-4.78%	7.34%	2.83%
Deferred Revenue
YoY Change
Short-Term Debt	$590.0M	$1.441B	$2.225B
YoY Change	-59.06%	-29.38%	19.68%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.156B	$1.214B	$1.161B
YoY Change	-4.78%	7.34%	2.83%
LONG-TERM LIABILITIES
Long-Term Debt	$1.356B	$2.735B	$2.959B
YoY Change	-50.42%	-24.88%	-17.71%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$1.356B	$2.735B	$2.959B
YoY Change	-50.42%	-24.88%	-17.71%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.156B	$1.214B	$1.161B
Total Long-Term Liabilities	$1.356B	$2.735B	$2.959B
Total Liabilities	$50.36B	$49.03B	$49.58B
YoY Change	2.71%	0.4%	3.98%
SHAREHOLDERS EQUITY
Retained Earnings		-$2.390B	-$2.474B
YoY Change		-15.09%	-13.08%
Common Stock		$8.656M	$8.652M
YoY Change		0.16%	20.5%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$10.26M	$10.16M
YoY Change		16.92%	13.29%
Treasury Stock Shares		1.178M shares	1.130M shares
Shareholders Equity	$5.790B	$5.779B	$5.400B
YoY Change
Total Liabilities & Shareholders Equity	$56.15B	$54.45B	$54.98B
YoY Change	3.13%	1.17%	3.25%

Cashflow Statement

Concept	2012	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	$631.3M	$126.9M	$143.4M
YoY Change	16.34%	3.22%	42.05%
Depreciation, Depletion And Amortization	$274.6M	$69.00M	$70.30M
YoY Change	-2.66%	-10.51%	-3.83%
Cash From Operating Activities	$1.002B	$208.1M	$196.3M
YoY Change	-37.16%	-922.53%	140.86%
INVESTING ACTIVITIES
Capital Expenditures	$129.6M	-$41.40M	-$30.60M
YoY Change	-9.82%	86.49%	120.14%
Acquisitions
YoY Change
Other Investing Activities	-$4.698M	-$645.4M	-$512.4M
YoY Change	1336.7%	-29.85%	-59.25%
Cash From Investing Activities	-$1.083B	-$686.7M	-$543.0M
YoY Change	-16.99%	-27.13%	-57.29%
FINANCING ACTIVITIES
Cash Dividend Paid	$169.3M
YoY Change	83.26%
Common Stock Issuance & Retirement, Net	$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$227.7M	-595.6M	1.553B
YoY Change	-1134.89%	-188.08%	29.06%
NET CHANGE
Cash From Operating Activities	$1.002B	208.1M	196.3M
Cash From Investing Activities	-$1.083B	-686.7M	-543.0M
Cash From Financing Activities	$227.7M	-595.6M	1.553B
Net Change In Cash	$146.8M	-1.074B	1.206B
YoY Change	-45.23%	268.63%	8835.56%
FREE CASH FLOW
Cash From Operating Activities	$1.002B	$208.1M	$196.3M
Capital Expenditures	$129.6M	-$41.40M	-$30.60M
Free Cash Flow	$872.5M	$249.5M	$226.9M
YoY Change	-39.87%	-8148.39%	137.84%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	70921000	USD
CY2012Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	452949000	USD
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000049196
CY2012Q2	dei	Entity Public Float EntityPublicFloat	5349102938	USD
CY2012Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	1262806000	USD
CY2012Q4	us-gaap	Trading Securities TradingSecurities	91205000	USD
CY2012Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	764309000	USD
CY2012Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	7566175000	USD
CY2012Q4	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	16970689000	USD
CY2012Q4	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	5399240000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer Home Equity LoansAndLeasesReceivableConsumerHomeEquity	8335342000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer Mortgage LoansAndLeasesReceivableConsumerMortgage	4969672000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer Other LoansAndLeasesReceivableConsumerOther	419662000	USD
CY2012Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	1596056000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	617257000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	444268000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	132157000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	1904805000	USD
CY2012Q4	us-gaap	Assets Assets	56153185000	USD
CY2012Q4	us-gaap	Deposits Deposits	46252683000	USD
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	589814000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	1008959000	USD
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	158784000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	1155643000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	50362974000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	8441000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	7475149000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10921000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-150817000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1917933000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	56153185000	USD
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	398007	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	1967071	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1178365	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	864406152	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	865584517	shares
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	54450652000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-173763000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10255000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	8656000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	1213978000	USD
CY2011Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1231517000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	362972000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1441092000	USD
CY2011Q4	us-gaap	Assets Assets	54450652000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	2168149000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	175302000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	444268000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	564429000	USD
CY2011Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	1549783000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer Other LoansAndLeasesReceivableConsumerOther	497568000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	5790211000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	6617808.00	shares
CY2012Q4	hban	Loans And Leases Receivable Automobile LoansAndLeasesReceivableAutomobile	4633820000	USD
CY2012Q4	us-gaap	Subordinated Debt SubordinatedDebt	1197091000	USD
CY2012Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	1743876000	USD
CY2011	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1727784000	USD
CY2010	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	239065000	USD
CY2012	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	8999000	USD
CY2012	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1563136000	USD
CY2010	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	11680000	USD
CY2012	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	24088000	USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1500000000	shares
CY2011	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	11213000	USD
CY2010	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	0	USD
CY2011	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13460000	USD
CY2010	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	28799000	USD
CY2012	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1930263000	USD
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1970226000	USD
CY2010	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	2145392000	USD
CY2012	us-gaap	Interest Expense Deposits InterestExpenseDeposits	162167000	USD
CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	260052000	USD
CY2012	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	2048000	USD
CY2011	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	3500000	USD
CY2010	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	3007000	USD
CY2012	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	819000	USD
CY2012	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	54705000	USD
CY2011	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	76680000	USD
CY2010	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	81409000	USD
CY2012	us-gaap	Interest Expense InterestExpense	219739000	USD
CY2011	us-gaap	Interest Expense InterestExpense	341056000	USD
CY2010	us-gaap	Interest Expense InterestExpense	526587000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1710524000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1629170000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1618805000	USD
CY2012	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	147388000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	174059000	USD
CY2010	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	634547000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1455111000	USD
CY2012	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	129701000	USD
CY2011	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	145653000	USD
CY2010	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	140051000	USD
CY2012	us-gaap	Noninterest Income NoninterestIncome	1097857000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	980623000	USD
CY2012	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	37541000	USD
CY2010	us-gaap	Other Noninterest Expense OtherNoninterestExpense	179603000	USD
CY2010	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1865848000	USD
CY2012	hban	Impairment Losses On Investment Securities ImpairmentLossesOnInvestmentSecurities	1886000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	825117000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	707234000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	243507000	USD
CY2010	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6275000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	511800000	USD
CY2012	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	56042000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	641022000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	542613000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	312347000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	31989000	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	30813000	USD
CY2010	us-gaap	Dividends Preferred Stock DividendsPreferredStock	172032000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	609033000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	140315000	USD
CY2011	hban	Impairment Losses On Investment Securities ImpairmentLossesOnInvestmentSecurities	8791000	USD
CY2010	hban	Impairment Losses On Investment Securities ImpairmentLossesOnInvestmentSecurities	17088000	USD
CY2012	hban	Noncredit Related Losses On Securities Not Expected To Be Sold NoncreditRelatedLossesOnSecuritiesNotExpectedToBeSold	267000	USD
CY2011	hban	Noncredit Related Losses On Securities Not Expected To Be Sold NoncreditRelatedLossesOnSecuritiesNotExpectedToBeSold	1428000	USD
CY2010	hban	Noncredit Related Losses On Securities Not Expected To Be Sold NoncreditRelatedLossesOnSecuritiesNotExpectedToBeSold	3366000	USD
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.16
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.10
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	857962000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	726934000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	863402000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	867624000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	729532000	shares
CY2012	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	262179000	USD
CY2012	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	191092000	USD
CY2012	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	121897000	USD
CY2012	hban	Electronic Banking ElectronicBanking	82290000	USD
CY2012	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	72226000	USD
CY2012	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	71319000	USD
CY2012	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	58182000	USD
CY2012	hban	Capital Markets Fee Income CapitalMarketsFeeIncome	48160000	USD
CY2011	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	69470000	USD
CY2011	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	119382000	USD
CY2011	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	83408000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39964000	USD
CY2011	hban	Electronic Banking ElectronicBanking	111697000	USD
CY2011	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	31944000	USD
CY2011	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	80367000	USD
CY2011	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	62336000	USD
CY2011	hban	Capital Markets Fee Income CapitalMarketsFeeIncome	36540000	USD
CY2010	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	76413000	USD
CY2010	hban	Electronic Banking ElectronicBanking	110234000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2010	hban	Capital Markets Fee Income CapitalMarketsFeeIncome	23886000	USD
CY2010	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	112555000	USD
CY2010	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	175782000	USD
CY2010	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	61066000	USD
CY2010	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	267015000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	798973000	USD
CY2010	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	161814000	USD
CY2010	us-gaap	Occupancy Net OccupancyNet	107862000	USD
CY2010	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	97548000	USD
CY2010	us-gaap	Professional Fees ProfessionalFees	86211000	USD
CY2010	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	56347000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	60478000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	22946000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	663968000	USD
CY2010	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	68855000	USD
CY2011Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	972281000	USD
CY2009Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	1482479000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer Mortgage LoansAndLeasesReceivableConsumerMortgage	5228276000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer Home Equity LoansAndLeasesReceivableConsumerHomeEquity	8215413000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	5825709000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	14699371000	USD
CY2011Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	1618391000	USD
CY2011Q4	us-gaap	Trading Securities TradingSecurities	45899000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	90943000	USD
CY2011Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	1115968000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	5418100000	USD
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	6617808.00	shares
CY2011Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	343588000	USD
CY2012Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	142762000	USD
CY2012Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	0	USD
CY2011Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	296250000	USD
CY2011Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	123039000	USD
CY2011Q4	hban	Loans And Leases Receivable Automobile LoansAndLeasesReceivableAutomobile	4457446000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	40728425000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	769075000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	39959350000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	38923783000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	964828000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	37958955000	USD
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Subordinated Debt SubordinatedDebt	1503368000	USD
CY2012Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	12599636000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	33375016000	USD
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CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	11157805000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	31761039000	USD
CY2011Q4	us-gaap	Deposits Foreign DepositsForeign	360781000	USD
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1500000000	shares
CY2011Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	640551000	USD
CY2012	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1675295000	USD
CY2011	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	207984000	USD
CY2010	us-gaap	Interest Expense Deposits InterestExpenseDeposits	439050000	USD
CY2011	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	824000	USD
CY2010	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	3121000	USD
CY2010	us-gaap	Noninterest Income NoninterestIncome	1041858000	USD
CY2012	us-gaap	Other Noninterest Expense OtherNoninterestExpense	180948000	USD
CY2012	us-gaap	Noninterest Expense NoninterestExpense	1835876000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	1728500000	USD
CY2010	us-gaap	Noninterest Expense NoninterestExpense	1673805000	USD
CY2010	us-gaap	Equipment Expense EquipmentExpense	85920000	USD
CY2010	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-39049000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-18006000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	77692000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	892534000	USD
CY2011	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	189174000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	53318000	USD
CY2011	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	65560000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	109129000	USD
CY2011	us-gaap	Professional Fees ProfessionalFees	68616000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	9697000	USD
CY2011	us-gaap	Equipment Expense EquipmentExpense	92544000	USD
CY2012	us-gaap	Professional Fees ProfessionalFees	65758000	USD
CY2012	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	68330000	USD
CY2012	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-18271000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	988193000	USD
CY2012	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	190255000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	46549000	USD
CY2012	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	64263000	USD
CY2012	us-gaap	Occupancy Net OccupancyNet	111160000	USD
CY2012	us-gaap	Equipment Expense EquipmentExpense	102947000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	798000	USD
CY2012	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6388000	USD
CY2011	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	3682000	USD
CY2010	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	13448000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	1619000	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	7363000	USD
CY2010	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	13722000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	12490000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	55305000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	6186000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-51035000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-53875000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	7499000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	64921000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	5188000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23733000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	566346000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	276085000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	15320000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-19021000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-23155000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-36262000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9406000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	136887000	USD
CY2012	us-gaap	Stockholders Equity Other StockholdersEquityOther	848000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	27873000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	4980542000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	22026000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	49100000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	86448000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	19666000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1934000	USD
CY2011	us-gaap	Stockholders Equity Other StockholdersEquityOther	2185000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	5336002000	USD
CY2010Q4	hban	Cumulative Adjustment For Accounting Change Consolidation Of Variable Interest Entity CumulativeAdjustmentForAccountingChangeConsolidationOfVariableInterestEntity	-6070000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	886172000	USD
CY2010	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	1398071000	USD
CY2010	us-gaap	Increase In Carrying Amount Of Redeemable Preferred Stock IncreaseInCarryingAmountOfRedeemablePreferredStock	0	USD
CY2010	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	30139000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15453000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1125000	USD
CY2012	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	941119000	USD
CY2012	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	3092643000	USD
CY2012	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	3287000000	USD
CY2012	hban	Proceeds From Sale Of Operating Lease Assets ProceedsFromSaleOfOperatingLeaseAssets	30322000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-47000	USD
CY2010	us-gaap	Stockholders Equity Other StockholdersEquityOther	-126000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	274572000	USD
CY2012	hban	Change In Current And Deferred Income Taxes ChangeInCurrentAndDeferredIncomeTaxes	-177706000	USD
CY2012	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	45306000	USD
CY2012	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	3814572000	USD
CY2012	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	3731465000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	93361000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1002130000	USD
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CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1776594000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	113576000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	957930000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2384824000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	129641000	USD
CY2012	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	56762000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4698000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1082978000	USD
CY2012	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2262213000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-939979000	USD
CY2012	us-gaap	Maturities Of Subordinated Debt MaturitiesOfSubordinatedDebt	305010000	USD
CY2012	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	2515000000	USD
CY2012	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	1914281000	USD
CY2012	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1070804000	USD
CY2012	hban	Repurchase Of Warrant Convertible To Common Stock RepurchaseOfWarrantConvertibleToCommonStock	0	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	31719000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	137616000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1237000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	227686000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	146838000	USD
CY2012	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6389000	USD
CY2012	us-gaap	Interest Paid InterestPaid	231897000	USD
CY2012Q4	hban	Trust Preferred Securities Exchange TrustPreferredSecuritiesExchange	0	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	282105000	USD
CY2011	hban	Change In Current And Deferred Income Taxes ChangeInCurrentAndDeferredIncomeTaxes	-84555000	USD
CY2011	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-139505000	USD
CY2011	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	2414172000	USD
CY2011	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	2820797000	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	28659000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1594787000	USD
CY2011	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	50093000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2489049000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	3205884000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	4283866000	USD
CY2011	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	204082000	USD
CY2011	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	1640237000	USD
CY2011	hban	Proceeds From Sale Of Operating Lease Assets ProceedsFromSaleOfOperatingLeaseAssets	62744000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	143763000	USD
CY2011	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	4148424000	USD
CY2011	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	55817000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-327000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1304706000	USD
CY2011	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1420944000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-580335000	USD
CY2011	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2011	us-gaap	Maturities Of Subordinated Debt MaturitiesOfSubordinatedDebt	5000000	USD
CY2011	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	550000000	USD
CY2011	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	359732000	USD
CY2011	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2011	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	902652000	USD
CY2011	hban	Repurchase Of Warrant Convertible To Common Stock RepurchaseOfWarrantConvertibleToCommonStock	49100000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	30813000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	61591000	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1963000	USD
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CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	268080000	USD
CY2010Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	847888000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	80065000	USD
CY2011	us-gaap	Interest Paid InterestPaid	357212000	USD
CY2011Q4	hban	Trust Preferred Securities Exchange TrustPreferredSecuritiesExchange	35500000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	286186000	USD
CY2010	hban	Change In Current And Deferred Income Taxes ChangeInCurrentAndDeferredIncomeTaxes	-161367000	USD
CY2010	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	101747000	USD
CY2010	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	3864273000	USD
CY2010	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	3535550000	USD
CY2010	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	123428000	USD
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CY2010	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	162913000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	3288714000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0	USD
CY2010	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	4280518000	USD
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	8769767000	USD
CY2010	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2010	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	941615000	USD
CY2010	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	2764575000	USD
CY2010	hban	Proceeds From Sale Of Operating Lease Assets ProceedsFromSaleOfOperatingLeaseAssets	34930000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	68200000	USD
CY2010	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	113298000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3770000	USD
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CY2010	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1353227000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	1128887000	USD
CY2010	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	297375000	USD
CY2010	us-gaap	Maturities Of Subordinated Debt MaturitiesOfSubordinatedDebt	83870000	USD
CY2010	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	450000000	USD
CY2010	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	446718000	USD
CY2010	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	60805000	USD
CY2010	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	848756000	USD
CY2010	hban	Repurchase Of Warrant Convertible To Common Stock RepurchaseOfWarrantConvertibleToCommonStock	0	USD
CY2010	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	107901000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	28598000	USD
CY2010	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	1398071000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	886172000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-47000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1262505000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-673456000	USD
CY2009Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	1521344000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-121401000	USD
CY2010	us-gaap	Interest Paid InterestPaid	552955000	USD
CY2010Q4	hban	Trust Preferred Securities Exchange TrustPreferredSecuritiesExchange	0	USD
CY2012	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	0	USD
CY2011	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	1759000	USD
CY2010	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	0	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	47312000	USD
CY2011Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	40771000	USD
CY2010Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	23373000	USD
CY2012	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	11217000	USD
CY2011	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2010	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2010	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	13448000	USD
CY2012	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	6388000	USD
CY2011	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	3682000	USD
CY2011	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	59885000	USD
CY2012	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	484157000	USD
CY2010	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	0	USD
CY2010	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-148881000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2011	us-gaap	Transfer Of Investments TransferOfInvestments	469070000	USD
CY2012	us-gaap	Transfer Of Investments TransferOfInvestments	278748000	USD
CY2010	us-gaap	Transfer Of Investments TransferOfInvestments	0	USD
CY2010	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	537906000	USD
CY2012	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	306261000	USD
CY2011	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	1268132000	USD
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	40258000	USD
CY2011	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2010	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	174500000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	122500000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Current CapitalLeasesFutureMinimumPaymentsReceivableCurrent	500000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Two Years CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears	300000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Three Years CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears	200000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Four Years CapitalLeasesFutureMinimumPaymentsReceivableInFourYears	200000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Five Years CapitalLeasesFutureMinimumPaymentsReceivableInFiveYears	100000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Due Thereafter CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter	200000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Receivable CapitalLeasesFutureMinimumPaymentsReceivable	1500000000	USD
CY2012	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	40400000	USD
CY2011	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	38400000	USD
CY2010	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	59700000	USD
CY2010	hban	Loans And Leases Receivable Impaired Interest Lost On Troubled Debt Restructured Loans LoansAndLeasesReceivableImpairedInterestLostOnTroubledDebtRestructuredLoans	30600000	USD
CY2011	hban	Loans And Leases Receivable Impaired Interest Lost On Troubled Debt Restructured Loans LoansAndLeasesReceivableImpairedInterestLostOnTroubledDebtRestructuredLoans	37700000	USD
CY2012	hban	Loans And Leases Receivable Impaired Interest Lost On Troubled Debt Restructured Loans LoansAndLeasesReceivableImpairedInterestLostOnTroubledDebtRestructuredLoans	41200000	USD
CY2012	hban	Loans And Leases Receivable Interest Income Recorded On Nonaccrual Loans LoansAndLeasesReceivableInterestIncomeRecordedOnNonaccrualLoans	4800000	USD
CY2011	hban	Loans And Leases Receivable Interest Income Recorded On Nonaccrual Loans LoansAndLeasesReceivableInterestIncomeRecordedOnNonaccrualLoans	5100000	USD
CY2010	hban	Loans And Leases Receivable Interest Income Recorded On Nonaccrual Loans LoansAndLeasesReceivableInterestIncomeRecordedOnNonaccrualLoans	5500000	USD
CY2010	us-gaap	Loans And Leases Receivable Impaired Troubled Debt Interest Income LoansAndLeasesReceivableImpairedTroubledDebtInterestIncome	23900000	USD
CY2011	us-gaap	Loans And Leases Receivable Impaired Troubled Debt Interest Income LoansAndLeasesReceivableImpairedTroubledDebtInterestIncome	28200000	USD
CY2012	us-gaap	Loans And Leases Receivable Impaired Troubled Debt Interest Income LoansAndLeasesReceivableImpairedTroubledDebtInterestIncome	32200000	USD
CY2012Q1	hban	Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loans CombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	523900000	USD
CY2012Q4	hban	Amount Guaranteed By Government AmountGuaranteedByGovernment	90816000	USD
CY2011Q4	hban	Amount Guaranteed By Government AmountGuaranteedByGovernment	96703000	USD
CY2012	hban	Loans With Outstanding Balance Which Evaluated On Quarterly Basis For Impairment LoansWithOutstandingBalanceWhichEvaluatedOnQuarterlyBasisForImpairment	1000000	USD
CY2012	hban	Redefault Status Number Of Days RedefaultStatusNumberOfDays	90
CY2012Q4	us-gaap	Loans And Leases Receivable Collateral For Secured Borrowings LoansAndLeasesReceivableCollateralForSecuredBorrowings	18400000000	USD
CY2012	hban	Bankruptcy Nonaccrual Impact BankruptcyNonaccrualImpact	60100000	USD
CY2011Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	0	USD
CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	27586000	USD
CY2012	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	7960000	USD
CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	23251000	USD
CY2012	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	3625000	USD
CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	183778000	USD
CY2012Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	310736000	USD
CY2012	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	1022023000	USD
CY2011	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	59578000	USD
CY2011	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	2819569000	USD
CY2012	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	3486175000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	407633000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	541080000	USD
CY2011Q4	hban	Ulc Balance Beginning Of Period ULCBalanceBeginningOfPeriod	48456000	USD
CY2012	hban	Provision For Loan And Lease Losse ProvisionForLoanAndLeaseLosse	155193000	USD
CY2012	hban	Allowance For Loans Sold Or Transferred To Loans Held For Sale AllowanceForLoansSoldOrTransferredToLoansHeldForSale	8484000	USD
CY2012	hban	Provision For Unfunded Loan Commitments And Letters Of Credit ProvisionForUnfundedLoanCommitmentsAndLettersOfCredit	-7805000	USD
CY2012Q4	hban	Aulc Balance End Of Period AulcBalanceEndOfPeriod	40651000	USD
CY2012Q4	hban	Acl Balance End Of Period AclBalanceEndOfPeriod	809726000	USD
CY2011	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	557753000	USD
CY2011	hban	Recoveries Of Loans Previously Chargedoff RecoveriesOfLoansPreviouslyChargedoff	120664000	USD
CY2011	hban	Provision For Loan And Lease Losse ProvisionForLoanAndLeaseLosse	167730000	USD
CY2011	hban	Allowance For Loans Sold Or Transferred To Loans Held For Sale AllowanceForLoansSoldOrTransferredToLoansHeldForSale	14821000	USD
CY2011	hban	Provision For Unfunded Loan Commitments And Letters Of Credit ProvisionForUnfundedLoanCommitmentsAndLettersOfCredit	6329000	USD
CY2012	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	455200000	USD
CY2012	hban	Recoveries Of Loans Previously Chargedoff RecoveriesOfLoansPreviouslyChargedoff	112738000	USD
CY2011Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7703000	USD
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2011Q4	hban	Acl Balance End Of Period AclBalanceEndOfPeriod	1013284000	USD
CY2011Q4	hban	Aulc Balance End Of Period AulcBalanceEndOfPeriod	48456000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	1249008000	USD
CY2009Q4	hban	Ulc Balance Beginning Of Period ULCBalanceBeginningOfPeriod	48879000	USD
CY2010	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1003907000	USD
CY2010	hban	Recoveries Of Loans Previously Chargedoff RecoveriesOfLoansPreviouslyChargedoff	129433000	USD
CY2010	hban	Provision For Loan And Lease Losse ProvisionForLoanAndLeaseLosse	641299000	USD
CY2010	hban	Allowance For Loans Sold Or Transferred To Loans Held For Sale AllowanceForLoansSoldOrTransferredToLoansHeldForSale	296000	USD
CY2010	hban	Provision For Unfunded Loan Commitments And Letters Of Credit ProvisionForUnfundedLoanCommitmentsAndLettersOfCredit	-6752000	USD
CY2010Q4	hban	Aulc Balance End Of Period AulcBalanceEndOfPeriod	42127000	USD
CY2010Q4	hban	Acl Balance End Of Period AclBalanceEndOfPeriod	1291135000	USD
CY2012Q4	hban	Automobile Loans Including Hfs Securitization AutomobileLoansIncludingHFSSecuritization	4933820000	USD
CY2011Q4	hban	Automobile Loans Including Hfs Securitization AutomobileLoansIncludingHFSSecuritization	5707446000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Acquired With Deteriorated Credit Quality FinancingReceivableAllowanceForCreditLossesAcquiredWithDeterioratedCreditQuality	0	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	705630000	USD
CY2012Q4	us-gaap	Financing Receivable Acquired With Deteriorated Credit Quality FinancingReceivableAcquiredWithDeterioratedCreditQuality	183778000	USD
CY2012Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	956748000	USD
CY2012Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	39587899000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	818379000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	322147000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	1140526000	USD
CY2012	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	1125891000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	63445000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	63445000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	859276000	USD
CY2011Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	37951502000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	105552000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Acquired With Deteriorated Credit Quality FinancingReceivableAllowanceForCreditLossesAcquiredWithDeterioratedCreditQuality	0	USD
CY2011Q4	us-gaap	Financing Receivable Acquired With Deteriorated Credit Quality FinancingReceivableAcquiredWithDeterioratedCreditQuality	0	USD
CY2011Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	890269000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	82012000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	972281000	USD
CY2011	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	942235000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	105552000	USD
CY2010Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	1105148000	USD
CY2010Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	37186926000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	38106507000	USD
CY2010Q4	us-gaap	Financing Receivable Allowance For Credit Losses Acquired With Deteriorated Credit Quality FinancingReceivableAllowanceForCreditLossesAcquiredWithDeterioratedCreditQuality	0	USD
CY2010Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	143860000	USD
CY2010Q4	us-gaap	Financing Receivable Acquired With Deteriorated Credit Quality FinancingReceivableAcquiredWithDeterioratedCreditQuality	0	USD
CY2010Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	919581000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	825292000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	94289000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	919581000	USD
CY2010	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	1064235000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	143860000	USD
CY2012Q4	us-gaap	Financing Receivable Modifications Number Of Contracts1 FinancingReceivableModificationsNumberOfContracts1	7974	contracts
CY2011Q4	us-gaap	Financing Receivable Modifications Number Of Contracts1 FinancingReceivableModificationsNumberOfContracts1	3698	contracts
CY2012Q4	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment1 FinancingReceivableModificationsPostModificationRecordedInvestment1	597425000	USD
CY2011Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	121000000	USD
CY2011Q4	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment1 FinancingReceivableModificationsPostModificationRecordedInvestment1	583439000	USD
CY2011	hban	Specific Allowance Created SpecificAllowanceCreated	1310000	USD
CY2012	hban	Specific Allowance Created SpecificAllowanceCreated	38747000	USD
CY2012Q4	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts FinancingReceivableModificationsSubsequentDefaultNumberOfContracts	393	contracts
CY2011Q4	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts FinancingReceivableModificationsSubsequentDefaultNumberOfContracts	359	contracts
CY2011Q4	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment FinancingReceivableModificationsSubsequentDefaultRecordedInvestment	41442000	USD
CY2012Q4	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment FinancingReceivableModificationsSubsequentDefaultRecordedInvestment	29617000	USD
CY2012Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	139000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	60054000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1961217000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	1170807000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	3989977000	USD
CY2012Q4	hban	Available For Sale Securities Non Marketable Equity Securities Amortized Cost AvailableForSaleSecuritiesNonMarketableEquitySecuritiesAmortizedCost	308075000	USD
CY2012Q4	hban	Available For Sale Securities Marketable Equity Securities Amortized Cost AvailableForSaleSecuritiesMarketableEquitySecuritiesAmortizedCost	16877000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	60651000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2005022000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1208054000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	3967196000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	2608656000	USD
CY2011Q4	hban	Available For Sale Securities Non Marketable Equity Securities Amortized Cost AvailableForSaleSecuritiesNonMarketableEquitySecuritiesAmortizedCost	286515000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	4201047000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	103747000	USD
CY2011Q4	hban	Available For Sale Securities Marketable Equity Securities Amortized Cost AvailableForSaleSecuritiesMarketableEquitySecuritiesAmortizedCost	53665000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	870324000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2614845000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	104074000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4131236000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	887725000	USD
CY2012Q4	hban	Available For Sale Securities Marketable Equity Securities Fair Value AvailableForSaleSecuritiesMarketableEquitySecuritiesFairValue	17177000	USD
CY2011Q4	hban	Available For Sale Securities Marketable Equity Securities Fair Value AvailableForSaleSecuritiesMarketableEquitySecuritiesFairValue	53619000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	286627000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	264527000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	551154000	USD
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	3831000	USD
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	118937000	USD
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	122768000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1294714000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	13478000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	385035000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	151602000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1679749000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	165080000	USD
CY2012Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Other Debt Facilities PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForOtherDebtFacilities	3100000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	8612000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	18641000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	28992000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2224000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	14959000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	15544000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	6388000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	3682000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	13448000	USD
CY2012Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	299029000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	181606000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	194062000	USD
CY2011Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	342867000	USD
CY2012Q4	hban	Available For Sale Securities Transferred To Held To Maturity Securities AvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities	278700000	USD
CY2012	hban	Unrealized Net Losses Recognized In Oci At Time Of Transfer Of Available For Sale Securities Transferred To Held To Maturity Securities UnrealizedNetLossesRecognizedInOciAtTimeOfTransferOfAvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities	100000	USD
CY2011Q4	hban	Available For Sale Securities Transferred To Held To Maturity Securities AvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities	469100000	USD
CY2011	hban	Unrealized Net Losses Recognized In Oci At Time Of Transfer Of Available For Sale Securities Transferred To Held To Maturity Securities UnrealizedNetLossesRecognizedInOciAtTimeOfTransferOfAvailableForSaleSecuritiesTransferredToHeldToMaturitySecurities	500000	USD
CY2012	hban	Residential Mortgage Loans With Servicing Retained Sold ResidentialMortgageLoansWithServicingRetainedSold	3954762000	USD
CY2011	hban	Residential Mortgage Loans With Servicing Retained Sold ResidentialMortgageLoansWithServicingRetainedSold	3078475000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1794105000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	660186000	USD
CY2012Q4	us-gaap	Heldtomaturity Securities Unrecognized Holding Gain HeldtomaturitySecuritiesUnrecognizedHoldingGain	50391000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Unrecognized Holding Loss HeldToMaturitySecuritiesUnrecognizedHoldingLoss	162000	USD
CY2011Q4	us-gaap	Heldtomaturity Securities Unrecognized Holding Gain HeldtomaturitySecuritiesUnrecognizedHoldingGain	19652000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Unrecognized Holding Loss HeldToMaturitySecuritiesUnrecognizedHoldingLoss	17000	USD
CY2010	hban	Residential Mortgage Loans With Servicing Retained Sold ResidentialMortgageLoansWithServicingRetainedSold	3943830000	USD
CY2010	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	106495000	USD
CY2011	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	77591000	USD
CY2012	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	128408000	USD
CY2011Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	65001000	USD
CY2010Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	125679000	USD
CY2012	hban	Time Decay TimeDecay	2881000	USD
CY2011	hban	Time Decay TimeDecay	4966000	USD
CY2011	hban	Servicing Asset At Fair Value Payoffs ServicingAssetAtFairValuePayoffs	19464000	USD
CY2012	hban	Servicing Asset At Fair Value Payoffs ServicingAssetAtFairValuePayoffs	14389000	USD
CY2012	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-12529000	USD
CY2011	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-36248000	USD
CY2012Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	35202000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2012Q4	hban	Core Deposit Intangible Related To Acquisition CoreDepositIntangibleRelatedToAcquisition	3403000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	509987000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	506584000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	331282000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	377830000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1388910000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	771653000	USD
CY2012	hban	Rental Income Credited To Occupancy Expense RentalIncomeCreditedToOccupancyExpense	11519000	USD
CY2011	hban	Total Depreciation And Amotization Of Premises And Equipment TotalDepreciationAndAmotizationOfPremisesAndEquipment	70413000	USD
CY2010	hban	Total Depreciation And Amotization Of Premises And Equipment TotalDepreciationAndAmotizationOfPremisesAndEquipment	64934000	USD
CY2010	hban	Rental Income Credited To Occupancy Expense RentalIncomeCreditedToOccupancyExpense	10108000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	444268000	USD
CY2011	us-gaap	Goodwill Other Changes GoodwillOtherChanges	0	USD
CY2012	us-gaap	Goodwill Other Changes GoodwillOtherChanges	0	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	41083000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	36368000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	20207000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6993000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6511000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1353047000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	788618000	USD
CY2012	hban	Total Depreciation And Amotization Of Premises And Equipment TotalDepreciationAndAmotizationOfPremisesAndEquipment	76170000	USD
CY2011	hban	Rental Income Credited To Occupancy Expense RentalIncomeCreditedToOccupancyExpense	10878000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Weighted Average Interest Rate FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresWeightedAverageInterestRate	0.0018	pure
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Weighted Average Interest Rate FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresWeightedAverageInterestRate	0.0019	pure
CY2012Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	4000000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3500000000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary FederalHomeLoanBankAdvancesMaturitiesSummary	1000000000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	1000000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	141000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	152086000	USD
CY2011Q4	hban	Retired Subordinated Notes RetiredSubordinatedNotes	36100000	USD
CY2012Q4	hban	Retired Subordinated Notes RetiredSubordinatedNotes	230300000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-12780000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	36513000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	36110000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-13164000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	19441000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-55703000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-156985000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-197496000	USD
CY2010	hban	Accumulated Other Comprehensive Income Period Change AccumulatedOtherComprehensiveIncomePeriodChange	-36262000	USD
CY2011	hban	Accumulated Other Comprehensive Income Period Change AccumulatedOtherComprehensiveIncomePeriodChange	23733000	USD
CY2012	hban	Accumulated Other Comprehensive Income Period Change AccumulatedOtherComprehensiveIncomePeriodChange	22946000	USD
CY2010Q4	hban	Cumulativeeffectofchangeinaccountingprincipleforotherthantemporarilyimpaireddebtsecuritiesnetoftax Cumulativeeffectofchangeinaccountingprincipleforotherthantemporarilyimpaireddebtsecuritiesnetoftax	-4249000	USD
CY2012Q4	hban	Unrealized Losses Transferred From Available For Sale Securities Portfolio To Held To Maturity Securities UnrealizedLossesTransferredFromAvailableForSaleSecuritiesPortfolioToHeldToMaturitySecurities	200000	USD
CY2008Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q1	hban	Purchase Price Of Warrants Repurchased Originally Issued To Treasury PurchasePriceOfWarrantsRepurchasedOriginallyIssuedToTreasury	49100000	USD
CY2011	hban	Stock Issued During Period Value New Issues Series B StockIssuedDuringPeriodValueNewIssuesSeriesB	23800000	USD
CY2012	hban	Common Stock Repurchased And Retired Average Cost Per Share CommonStockRepurchasedAndRetiredAverageCostPerShare	6.36
CY2012	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	23300000	shares
CY2008	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	1400000000	USD
CY2008Q4	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights	8.90
CY2011Q4	hban	Floating Rate Series B Noncumulative Perpetual Preferred Stock Exchanged FloatingRateSeriesBNoncumulativePerpetualPreferredStockExchanged	35500000	USD
CY2008	hban	Term To Exercise Warrants Years TermToExerciseWarrantsYears	P10Y
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	609033000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	1238000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4202000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	1017000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2916000	shares
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	511800000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	140315000	USD
CY2010	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	876000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1722000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	5440000	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3933000	shares
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2598000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	24400000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	23600000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	18500000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	39400000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.78
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.40
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.20
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0110	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0238	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3490	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3000	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0263	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0195	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3850	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0230	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0068	pure
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27873000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	9298000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	19666000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6708000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15453000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5408000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	27205000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	26768000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	5920000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	13037000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	12322000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	19.21
CY2012	hban	Share Based Compensation Arrangement By Share Based Payment Award Option Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice	4.33
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	6.26
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	11.61
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.87
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	11.47
CY2012	hban	Share Based Compensation Arrangement By Share Based Payment Award Option Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice	6.71
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	3388000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9449000	USD
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	520000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-5837000	shares
CY2012	hban	Award Vested As Of Grant Date AwardVestedAsOfGrantDate	1	pure
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y6M
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P5Y10M
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y1M
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	5749000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y
CY2012	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	2300000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	500000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	100000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	100000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	300000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	200000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.69
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.24
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.15
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	32800000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	9100000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	11200000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	3000000	USD
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	26768000	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	8.87
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	13037000	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	11.61
CY2012	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P4Y6M
CY2011	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	100000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2200000	USD
CY2012Q4	hban	Current Federal Tax Expense Benefit Securities Transactions CurrentFederalTaxExpenseBenefitSecuritiesTransactions	1700000	USD
CY2011Q4	hban	Current Federal Tax Expense Benefit Securities Transactions CurrentFederalTaxExpenseBenefitSecuritiesTransactions	1300000	USD
CY2010Q4	hban	Current Federal Tax Expense Benefit Securities Transactions CurrentFederalTaxExpenseBenefitSecuritiesTransactions	100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	50100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	47700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	3000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	800000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	2200000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2300000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	27000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	86600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-100000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	49506000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	37610000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11896000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5650000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6246000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	24006000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10468000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	40675000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	29539000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-5040000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6966000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	30972000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5428000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	70214000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-30243000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	158709000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	186396000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-33273000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	484000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-7000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-30250000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	159193000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	153123000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	288791000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	247532000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	123310000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	6680000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	9695000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	15752000	USD
CY2012	hban	Effective Income Tax Reconciliation Tax Exempt Bank Owned Life Insurance Income EffectiveIncomeTaxReconciliationTaxExemptBankOwnedLifeInsuranceIncome	19151000	USD
CY2011	hban	Effective Income Tax Reconciliation Tax Exempt Bank Owned Life Insurance Income EffectiveIncomeTaxReconciliationTaxExemptBankOwnedLifeInsuranceIncome	21169000	USD
CY2010	hban	Effective Income Tax Reconciliation Tax Exempt Bank Owned Life Insurance Income EffectiveIncomeTaxReconciliationTaxExemptBankOwnedLifeInsuranceIncome	20595000	USD
CY2010	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	0	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	17744000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	0	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	49654000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	31269000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	23360000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-21251000	USD
CY2012	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-18659000	USD
CY2011	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-7000000	USD
CY2010	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-62681000	USD
CY2010	hban	Effective Income Tax Reconciliation Loan Acquisitions EffectiveIncomeTaxReconciliationLoanAcquisitions	-43650000	USD
CY2011	hban	Effective Income Tax Reconciliation Loan Acquisitions EffectiveIncomeTaxReconciliationLoanAcquisitions	0	USD
CY2012	hban	Effective Income Tax Reconciliation Loan Acquisitions EffectiveIncomeTaxReconciliationLoanAcquisitions	0	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	19196000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2962000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4152000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1998000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	945000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3920000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	13621000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	5983000	USD
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	4344000	USD
CY2012Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	0	USD
CY2011Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	0	USD
CY2010Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	46160000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	282175000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	348269000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other Tax Carryforwards DeferredTaxAssetsOtherTaxCarryforwards	217877000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other Tax Carryforwards DeferredTaxAssetsOtherTaxCarryforwards	215232000	USD
CY2012Q4	hban	Deferred Tax Assets Fair Value Adjustments DeferredTaxAssetsFairValueAdjustments	84740000	USD
CY2011Q4	hban	Deferred Tax Assets Fair Value Adjustments DeferredTaxAssetsFairValueAdjustments	92569000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	39813000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	32736000	USD
CY2011Q4	hban	Deferred Tax Assets Purchase Accounting Adjustments DeferredTaxAssetsPurchaseAccountingAdjustments	10556000	USD
CY2012Q4	hban	Deferred Tax Assets Purchase Accounting Adjustments DeferredTaxAssetsPurchaseAccountingAdjustments	8383000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	15661000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	17883000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	655374000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	717668000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	386687000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	329248000	USD
CY2011Q4	hban	Deferred Tax Assets Liabilities Net Before Valuation Allowance DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowance	388420000	USD
CY2012Q4	hban	Deferred Tax Assets Liabilities Net Before Valuation Allowance DeferredTaxAssetsLiabilitiesNetBeforeValuationAllowance	268687000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	64812000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	23594000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	364826000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	203875000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	122395000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	61189000	USD
CY2012Q4	hban	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	50704000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	35655000	USD
CY2012Q4	hban	Deferred Tax Liabilities Pension And Other Employee Benefits DeferredTaxLiabilitiesPensionAndOtherEmployeeBenefits	33898000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	30713000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	30686000	USD
CY2012Q4	hban	Deferred Tax Liabilities Partnership Investments DeferredTaxLiabilitiesPartnershipInvestments	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	21447000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	65029000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	51124000	USD
CY2011Q4	hban	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	51754000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	33511000	USD
CY2011Q4	hban	Deferred Tax Liabilities Pension And Other Employee Benefits DeferredTaxLiabilitiesPensionAndOtherEmployeeBenefits	19290000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	40273000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	45948000	USD
CY2011Q4	hban	Deferred Tax Liabilities Partnership Investments DeferredTaxLiabilitiesPartnershipInvestments	6761000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	15558000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	7148000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	0	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	633617000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	538970000	USD
CY2011Q4	hban	Fair Value Of Plan Assets Percentage FairValueOfPlanAssetsPercentage	1.00	pure
CY2012Q4	hban	Fair Value Of Plan Assets Percentage FairValueOfPlanAssetsPercentage	1.00	pure
CY2012	us-gaap	Defined Benefit Plan Description Of Direction And Pattern Of Change For Assumed Health Care Cost Trend Rate DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate	These rates are assumed to decrease gradually
CY2012Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	213335000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Loss After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax	-236399000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Loss After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax	-185364000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Loss After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax	-131489000	USD
CY2011Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Before Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossBeforeTax	-285177000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	177092000	USD
CY2012	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-262187000	USD
CY2012	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax	0	USD
CY2010	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-166183000	USD
CY2010	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax	6000	USD
CY2011	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-215628000	USD
CY2011	hban	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax	3000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	25788000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	34688000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	30261000	USD
CY2012Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Before Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossBeforeTax	-363691000	USD
CY2010Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Before Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossBeforeTax	-202292000	USD
CY2009Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Before Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossBeforeTax	-173029000	USD
CY2011Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossTax	99813000	USD
CY2012Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossTax	127292000	USD
CY2010Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossTax	70803000	USD
CY2009Q4	hban	Pension And Other Postretirement Benefit Plans Accumulated Other Comprehensive Income Loss Tax PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossTax	60561000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Loss After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax	-112468000	USD
CY2012	hban	Attributes Of Employees Contribution To Defined Contribution Plan AttributesOfEmployeesContributionToDefinedContributionPlan	Half of the employee contribution was matched on the 4th and 5th percent of base pay contributed to the Plan.
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16926000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14980000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8787000	USD
CY2012	hban	Average Duration Of Plan Assets Investment In Bonds AverageDurationOfPlanAssetsInvestmentInBonds	P12Y0M
CY2012	hban	Base Pay Contributed To Plan BasePayContributedToPlan	up to first 3%
CY2012	hban	Life Insurance Coverage Maximum LifeInsuranceCoverageMaximum	50000	USD
CY2012	us-gaap	Deferred Compensation Arrangement With Individual Requisite Service Period DeferredCompensationArrangementWithIndividualRequisiteServicePeriod	10 years
CY2012	hban	Contributions Received For Retiree Medical Program ContributionsReceivedForRetireeMedicalProgram	2800000	USD
CY2012	hban	Defined Benefit Plan Expenses DefinedBenefitPlanExpenses	1100000	USD
CY2011	hban	Defined Benefit Plan Expenses DefinedBenefitPlanExpenses	800000	USD
CY2010	hban	Defined Benefit Plan Expenses DefinedBenefitPlanExpenses	1000000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Net Transition Asset Obligation DefinedBenefitPlanAmortizationOfNetTransitionAssetObligation	0	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Net Prior Service Cost Credit DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit	7100000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Net Gains Losses DefinedBenefitPlanAmortizationOfNetGainsLosses	38500000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	35400000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	775200000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	651300000	USD
CY2011Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	26900000	USD
CY2012	us-gaap	Deferred Compensation Arrangement With Individual Employer Contribution DeferredCompensationArrangementWithIndividualEmployerContribution	75000000	USD
CY2012	hban	Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan SupplementalExecutiveRetirementPlanAndSupplementalRetirementIncomePlan	2500000	USD
CY2011	hban	Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan SupplementalExecutiveRetirementPlanAndSupplementalRetirementIncomePlan	1800000	USD
CY2010	hban	Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan SupplementalExecutiveRetirementPlanAndSupplementalRetirementIncomePlan	1800000	USD
CY2012	hban	Employees Retirement Age For Health Care And Life Insurance Benefits EmployeesRetirementAgeForHealthCareAndLifeInsuranceBenefits	55	pure
CY2012	hban	Estimated Life Of Benefit Obligations EstimatedLifeOfBenefitObligations	P14Y
CY2012	hban	Estimated Net Periodic Pension Cost In Next Fiscal Year EstimatedNetPeriodicPensionCostInNextFiscalYear	42700000	USD
CY2012	hban	Estimated Net Periodic Post Retirement Benefit Cost In Next Fiscal Year EstimatedNetPeriodicPostRetirementBenefitCostInNextFiscalYear	0	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	10000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	10000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2028
CY2012	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.045	pure
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	10000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	20000	USD
CY2013	hban	Base Pay Contributed To Plan BasePayContributedToPlan	up to first 4%
CY2012Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	141600000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	150200000	USD
CY2011	hban	Federal Agencies Mortgage Backed Securities Transferred To Held To Maturity Securities Portfolio FederalAgenciesMortgageBackedSecuritiesTransferredToHeldToMaturitySecuritiesPortfolio	469100000	USD
CY2012	hban	Federal Agencies Mortgage Backed Securities Transferred To Held To Maturity Securities Portfolio FederalAgenciesMortgageBackedSecuritiesTransferredToHeldToMaturitySecuritiesPortfolio	278200000	USD
CY2011Q4	hban	Aggregate Credit Risk Net Of Collateral AggregateCreditRiskNetOfCollateral	36400000	USD
CY2012Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	181100000	USD
CY2012Q4	hban	Investment Securities And Cash Collateral Pledged To Company InvestmentSecuritiesAndCashCollateralPledgedToCompany	162500000	USD
CY2012Q4	hban	Aggregate Credit Risk Net Of Collateral AggregateCreditRiskNetOfCollateral	17400000	USD
CY2012Q4	us-gaap	Notional Amount Of Fair Value Hedge Instruments NotionalAmountOfFairValueHedgeInstruments	1324875000	USD
CY2012Q4	us-gaap	Notional Amount Of Cash Flow Hedge Instruments NotionalAmountOfCashFlowHedgeInstruments	9188000000	USD
CY2012Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	10512875000	USD
CY2012Q4	us-gaap	Notional Amount Of Interest Rate Derivatives NotionalAmountOfInterestRateDerivatives	10512875000	USD
CY2012Q4	hban	Average Maturity Of Interest Rate Derivative In Years AverageMaturityOfInterestRateDerivativeInYears	2.9
CY2012Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	169222000	USD
CY2012Q4	hban	Weighted Average Rate Receive WeightedAverageRateReceive	0.0125	pure
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CY2011	hban	Increase Decrease To Net Interest Income Due To Derivative Adjustment IncreaseDecreaseToNetInterestIncomeDueToDerivativeAdjustment	113900000	USD
CY2010	hban	Increase Decrease To Net Interest Income Due To Derivative Adjustment IncreaseDecreaseToNetInterestIncomeDueToDerivativeAdjustment	192200000	USD
CY2012	hban	Increase Decrease To Net Interest Income Due To Derivative Adjustment IncreaseDecreaseToNetInterestIncomeDueToDerivativeAdjustment	107500000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-3569000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	3172000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	51943000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-14992000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-3107000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	115692000	USD
CY2012Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	39600000000	USD
CY2012Q3	hban	Total Of Automobile Loans Transferred In Securitization Transaction TotalOfAutomobileLoansTransferredInSecuritizationTransaction	1000000000	USD
CY2012Q1	hban	Total Of Automobile Loans Transferred In Securitization Transaction TotalOfAutomobileLoansTransferredInSecuritizationTransaction	1300000000	USD
CY2011Q3	hban	Total Of Automobile Loans Transferred In Securitization Transaction TotalOfAutomobileLoansTransferredInSecuritizationTransaction	1000000000	USD
CY2012	hban	Maximum Year To Defer Payment Of Interest On Debenture MaximumYearToDeferPaymentOfInterestOnDebenture	not exceeding five years
CY2012	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	230300000	USD
CY2012	hban	Gain Loss On Redemption Of Trust Preferred Securities GainLossOnRedemptionOfTrustPreferredSecurities	800000	USD
CY2012Q4	hban	Commitments To Limited Partnership Interests CommitmentsToLimitedPartnershipInterests	391900000	USD
CY2011Q4	hban	Commitments To Limited Partnership Interests CommitmentsToLimitedPartnershipInterests	376100000	USD
CY2011Q4	hban	Funded Commitments To Limited Partnership Interests FundedCommitmentsToLimitedPartnershipInterests	322500000	USD
CY2012Q4	hban	Funded Commitments To Limited Partnership Interests FundedCommitmentsToLimitedPartnershipInterests	380000000	USD
CY2012	us-gaap	Debt Instrument Description Of Variable Rate Basis DebtInstrumentDescriptionOfVariableRateBasis	three month LIBOR
CY2012Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	526058000	USD
CY2012Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	529941000	USD
CY2012Q4	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	512294000	USD
CY2011Q4	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	479989000	USD
CY2011Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	777250000	USD
CY2011Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	497353000	USD
CY2012Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	312894000	USD
CY2012Q4	us-gaap	Deferred Revenue DeferredRevenue	1400000	USD
CY2011Q4	us-gaap	Deferred Revenue DeferredRevenue	1600000	USD
CY2012Q4	hban	Commitments To Sell Residential Real Estate Loans CommitmentsToSellResidentialRealEstateLoans	849800000	USD
CY2011Q4	hban	Commitments To Sell Residential Real Estate Loans CommitmentsToSellResidentialRealEstateLoans	629000000	USD
CY2012	hban	Maturity Period Of Forward Contracts Relating Mortgage Banking Business MaturityPeriodOfForwardContractsRelatingMortgageBankingBusiness	less than one year
CY2012Q4	us-gaap	Loss Contingency Range Of Possible Loss Minimum LossContingencyRangeOfPossibleLossMinimum	0	USD
CY2012Q4	us-gaap	Loss Contingency Range Of Possible Loss Maximum LossContingencyRangeOfPossibleLossMaximum	130000000	USD
CY2012Q4	hban	Recovery From Bank As Form Of Unjust Enrichment RecoveryFromBankAsFormOfUnjustEnrichment	1900000	USD
CY2012Q4	hban	Direct Damage Claimed By Plantiffs DirectDamageClaimedByPlantiffs	32000000	USD
CY2012Q4	hban	Additional Consequential Damages By Plantiffs AdditionalConsequentialDamagesByPlantiffs	excess of $20.0 million
CY2012Q4	hban	Bankruptcy Trustee Alleging For Amount BankruptcyTrusteeAllegingForAmount	70000000	USD
CY2012Q4	hban	Preferential Transfer Alleged Bybankruptcy Trustee PreferentialTransferAllegedBybankruptcyTrustee	1200000	USD
CY2012Q4	hban	Fraudulent Transfers Alleged By Bankruptcy Trustee FraudulentTransfersAllegedByBankruptcyTrustee	73000000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	47100000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	45100000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	42400000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	38500000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	35500000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	208600000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	417200000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Current OperatingLeasesSubleaseRentalsCurrent	5400000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Two Years OperatingLeasesSubleaseRentalsTwoYears	3800000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Three Years OperatingLeasesSubleaseRentalsThreeYears	2300000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Four Years OperatingLeasesSubleaseRentalsFourYears	800000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Five Years OperatingLeasesSubleaseRentalsFiveYears	200000	USD
CY2012Q4	hban	Operating Leases Sublease Rentals Thereafter OperatingLeasesSubleaseRentalsThereafter	500000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	13000000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	54700000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	53500000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	50300000	USD
CY2012Q4	hban	Credit Related To Recoveries In Preference Actions Filed CreditRelatedToRecoveriesInPreferenceActionsFiled	4000000	USD
CY2012Q4	hban	Bankruptcy Trustee Unable To Recover BankruptcyTrusteeUnableToRecover	900000	USD
CY2012Q4	hban	Bankruptcy Court Recommended Judgment Amount Principal BankruptcyCourtRecommendedJudgmentAmountPrincipal	71800000	USD
CY2012Q4	hban	Bankruptcy Court Recommended Judgment Amount Interest BankruptcyCourtRecommendedJudgmentAmountInterest	8800000	USD
CY2012Q4	hban	Amount Bank Could Lend To Single Affiliate AmountBankCouldLendToSingleAffiliate	609400000	USD
CY2012Q4	us-gaap	Amount Available For Dividend Distribution Without Prior Approval From Regulatory Agency AmountAvailableForDividendDistributionWithoutPriorApprovalFromRegulatoryAgency	0	USD
CY2012Q4	hban	Average Cash Reserve Deposit Required And Made Federal Reserve Banks AverageCashReserveDepositRequiredAndMadeFederalReserveBanks	400000000	USD
CY2011Q4	hban	Average Cash Reserve Deposit Required And Made Federal Reserve Banks AverageCashReserveDepositRequiredAndMadeFederalReserveBanks	800000000	USD
CY2012	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	182000000	USD
CY2012Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.04	pure
CY2012Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08	pure
CY2012Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04	pure
CY2012Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.06	pure
CY2012Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10	pure
CY2012Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05	pure
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22946000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	23733000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-36262000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	566346000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	663968000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	276085000	USD
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	136499000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	159784000	USD
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2012	hban	Companys Definition Of Business Banking By Revenue Size CompanysDefinitionOfBusinessBankingByRevenueSize	up to $25 million
CY2012	hban	Number Of Business Banking Business NumberOfBusinessBankingBusiness	163000000	USD
CY2012Q4	hban	Number Of Atm NumberOfAtm	1350
CY2012Q4	hban	Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loans CombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans	523900000	USD
CY2012Q4	hban	Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Receivable From Fdic CombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedReceivableFromFDIC	95900000	USD
CY2012Q4	hban	Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Assets CombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets	152300000	USD
CY2012Q4	hban	Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposits CombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits	713400000	USD
CY2012Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Financial Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities	45200000	USD
CY2012	hban	Number Of Reporting Segments NumberOfReportingSegments	4
CY2012	hban	Number Of Regional And Commercial Banking Markets NumberOfRegionalAndCommercialBankingMarkets	11
CY2012Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	478995000	USD
CY2012Q4	us-gaap	Interest Expense InterestExpense	44940000	USD
CY2012Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	434055000	USD
CY2012Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	39458000	USD
CY2012Q4	us-gaap	Noninterest Income NoninterestIncome	297651000	USD
CY2012Q4	us-gaap	Noninterest Expense NoninterestExpense	470628000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	221620000	USD
CY2012Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54341000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	167279000	USD
CY2012Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7973000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	159306000	USD
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2012Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	483787000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	53489000	USD
CY2012Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	430298000	USD
CY2012Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	37004000	USD
CY2012Q3	us-gaap	Noninterest Income NoninterestIncome	261067000	USD
CY2012Q3	us-gaap	Noninterest Expense NoninterestExpense	458303000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	196058000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28291000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	167767000	USD
CY2012Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7983000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	152706000	USD
CY2012Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7984000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	144722000	USD
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2012Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	479937000	USD
CY2012Q1	us-gaap	Interest Expense InterestExpense	62728000	USD
CY2012Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	487544000	USD
CY2012Q2	us-gaap	Interest Expense InterestExpense	58582000	USD
CY2012Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	428962000	USD
CY2012Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	36520000	USD
CY2012Q2	us-gaap	Noninterest Income NoninterestIncome	253819000	USD
CY2012Q2	us-gaap	Noninterest Expense NoninterestExpense	444269000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	201992000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49286000	USD
CY2012Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	417209000	USD
CY2012Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	34406000	USD
CY2012Q1	us-gaap	Noninterest Income NoninterestIncome	285320000	USD
CY2012Q1	us-gaap	Noninterest Expense NoninterestExpense	462676000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	205447000	USD
CY2012Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	52177000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	153270000	USD
CY2012Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8049000	USD
CY2012Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	145221000	USD
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2011Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	485216000	USD
CY2011Q4	us-gaap	Interest Expense InterestExpense	70191000	USD
CY2011Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	415025000	USD
CY2011Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	45291000	USD
CY2011Q4	us-gaap	Noninterest Income NoninterestIncome	229352000	USD
CY2011Q4	us-gaap	Noninterest Expense NoninterestExpense	430274000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	168812000	USD
CY2011Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41954000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	126858000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	119155000	USD
CY2011Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	490996000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	84518000	USD
CY2011Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	406478000	USD
CY2011Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	43586000	USD
CY2011Q3	us-gaap	Noninterest Income NoninterestIncome	258559000	USD
CY2011Q3	us-gaap	Noninterest Expense NoninterestExpense	439118000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	182333000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	38942000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	143391000	USD
CY2011Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7703000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	135688000	USD
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2011Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	492137000	USD
CY2011Q2	us-gaap	Interest Expense InterestExpense	88800000	USD
CY2011Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	403337000	USD
CY2011Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	35797000	USD
CY2011Q2	us-gaap	Noninterest Income NoninterestIncome	255767000	USD
CY2011Q2	us-gaap	Noninterest Expense NoninterestExpense	428409000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	194898000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48980000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	145918000	USD
CY2011Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7704000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	138214000	USD
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2011Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	501877000	USD
CY2011Q1	us-gaap	Interest Expense InterestExpense	97547000	USD
CY2011Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	404330000	USD
CY2011Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	49385000	USD
CY2011Q1	us-gaap	Noninterest Income NoninterestIncome	236945000	USD
CY2011Q1	us-gaap	Noninterest Expense NoninterestExpense	430699000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	161191000	USD
CY2011Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34745000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	126446000	USD
CY2011Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7703000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	118743000	USD
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14

Files In Submission

Name	View Source	Status
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$HBAN
HUNTINGTON BANCSHARES INC /MD/ Stock $hban

2012 Form 10-K Financial Statement

#000119312513062480 Filed on February 15, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HBAN HUNTINGTON BANCSHARES INC /MD/ Stock $hban

2012 Form 10-K Financial Statement

#000119312513062480 Filed on February 15, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HBAN
HUNTINGTON BANCSHARES INC /MD/ Stock $hban