Change in Accounting Principle Change in Accounting Principle Accounting Changes and Error Corrections [Text Block] Summary of Significant Accounting Policies Receivable Type [Axis] Accumulated Defined Benefit Plans Adjustment [Member] Recognized Postretirement Prior Service Cost and Transition Obligation Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Net Investment Hedges Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Accumulated Net Unrealized Investment Gain (Loss) [Member] Securities Available for Sale Changes in Accumulated Other Comprehensive Income (loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Comprehensive income at the beginning of the period Comprehensive income at the end of the period Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive (Loss) Income Foreign Currency Translation Adjustment Accumulated Translation Adjustment [Member] Additional collateral required, if TCF was rated less than BB- by Standard and Poor's Additional Collateral, Aggregate Fair Value Additional Paid in Capital Additional paid-in capital Additional Paid-in Capital Additional Paid-in Capital [Member] Adjustments for Change in Accounting Principle [Axis] Cancellation of common shares for tax withholding Adjustments Related to Tax Withholding for Share-based Compensation Net amortization of stock compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Total adjustments Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Stock compensation tax (expense) benefit Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Compensation expense for restricted stock (in dollars) Allocated Share-based Compensation Expense Allowance for loan and lease losses and balances by type of allowance methodology Allowance for Credit Losses on Financing Receivables [Table Text Block] Allowance for Loan and Lease Losses Allowance for Loan and Lease Losses, Adjustments, Net [Abstract] Other Allowance for Loan and Lease Losses, Foreign Currency Translation Allowance for loan and lease losses Allowance for Loan and Lease Losses [Roll Forward] Charge-offs Allowance for Loan and Lease Losses, Write-offs Allowance for Loan and Lease Losses Write-offs, Net Net (charge-offs) recoveries Recoveries Allowance for Loan and Lease Loss, Recovery of Bad Debts Amortization expenses Amortization of Intangible Assets Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] Write-down of long-lived assets held for sale Asset Impairment Charges Total assets Assets Assets Assets [Abstract] Total Assets Total Assets, Fair Value Disclosure Auto Finance Auto finance Automobile Loan [Member] Securities available for sale Fair Value Available-for-sale Securities Securities available for sale: Available-for-sale Securities [Abstract] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross unrealized losses and fair value of securities available for sale that is in a loss position Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Total, fair value Less than 12 months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value 12 months or more, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Securities available for sale: Available-for-sale Securities, Debt Maturities [Abstract] Total securities available for sale Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Amortized Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] Fair Value Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Due in one year or less Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis Due in one year or less Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value Due after 10 years Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Amortized Cost Basis Due after 10 years Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Fair Value Due in 5-10 years Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost Basis Due in 5-10 years Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value No stated maturity Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis No stated maturity Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value Gross gains recognized on sales of securities Available-for-sale Securities, Gross Realized Gains Securities available for sale pledged as collateral Fair value of short-term debt Available-for-sale Securities Pledged as Collateral Available-for-sale Securities, Sold at Par Available for sale securities sold Securities available for sale Available-for-sale Securities [Table Text Block] Award Type [Axis] Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Office buildings Building [Member] Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business combinations Business Acquisition [Line Items] Basic net income per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Diluted net income per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Unaudited pro forma financial information Business Acquisition, Pro Forma Information [Abstract] Schedule of pro forma financial information as if the acquisition have been effective January 1 Business Acquisition, Pro Forma Information [Table Text Block] Net income available to common stockholders Business Acquisition, Pro Forma Net Income (Loss) Acquisition costs recognized Business Combination, Acquisition Related Costs Business Combination Business Combination Disclosure [Text Block] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Other intangibles recorded as a result of acquisition Business Combination Capital Leases, Net Investment in Direct Financing Leases Direct financing leases Sales-type leases Capital Leases, Net Investment in Sales Type Leases Minimum Capital Requirement, Ratio (as a percent) Capital Required for Capital Adequacy to Risk Weighted Assets Capital Required to be Well Capitalized to Risk Weighted Assets Well-Capitalized Capital Requirement, Ratio (as a percent) Actual, Ratio (as a percent) Capital to Risk Weighted Assets Carrying Amount Reported Value Measurement [Member] Cash and Due from Banks Cash and cash equivalents Cash and due from banks at beginning of period Cash and due from banks at end of period Cash and Cash Equivalents, at Carrying Value Cash and Due from Banks Cash and Cash Equivalents Disclosure [Text Block] Net (decrease) increase in cash and due from banks Cash and Cash Equivalents, Period Increase (Decrease) Cash and due from banks Cash and due from banks at beginning of period Cash and due from banks at end of period Cash and Due from Banks. Amount to be reclassified from other comprehensive income (loss) into earnings during the next 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Cash Flow Hedges Cash Flow Hedging [Member] Reserve in cash on hand or at the Federal Reserve Bank as required by Federal Reserve regulations Cash Segregated under Other Regulations Remaining accretable discount for loans acquired with deteriorated credit quality Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Accretion recorded to income Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Outstanding principal balances of loans acquired with deteriorated credit quality Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Adjustments for Change in Accounting Principle [Domain] Treasury Stock and Other Class of Stock Disclosures [Abstract] Class of Stock [Domain] Warrants exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Outstanding warrants to purchase common stock (in shares) Class of Warrant or Right, Outstanding Collateral posted Amount of cash collateral posted Collateral Already Posted, Aggregate Fair Value Litigation Contingencies Shares held in trust for deferred compensation plans, at cost Common Stock Issued, Employee Trust, Deferred TCF Common Stock Common Stock Common Stock [Member] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, par value $.01 per share, 280,000,000 shares authorized; 166,924,026 and 165,164,861 shares issued, respectively Common Stock, Value, Issued Telecommunications Communication Employee Benefit Plans Compliance with Regulatory Capital Requirements under Banking Regulations Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Significant components of the Company's deferred tax assets and deferred tax liabilities Components of Deferred Tax Assets and Liabilities [Abstract] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Accumulated Other Comprehensive Income Other comprehensive income (loss): Comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Statements of Financial Position Condensed Balance Sheet Statement [Table] Condensed Cash Flow Statements, Captions [Line Items] Condensed Statements of Cash Flows Condensed Cash Flow Statement [Table] Parent Company Financial Information Parent Company Financial Information Condensed Financial Information of Parent Company Only Disclosure [Text Block] Condensed Income Statements, Captions [Line Items] Condensed Statements of (Loss) Income Condensed Income Statement [Table] Consolidation Items [Axis] Consolidation Items [Domain] Certificates of deposit remaining maturities, Denominations $100 Thousand or Greater Contractual Maturities, Time Deposits, $100,000 or More [Abstract] 0 - 3 months Contractual Maturities, Time Deposits, $100,000 or More, Three Months or Less Federal Current Federal Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current Current Income Tax Expense (Benefit) Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] State Current State and Local Tax Expense (Benefit) Total borrowings Debt and Capital Lease Obligations Long-term Borrowings Debt Instrument [Axis] Basis spread on variable rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Variable rate basis Debt Instrument, Description of Variable Rate Basis Face amount of debt Debt Instrument, Face Amount Interest rate at period end (as a percent) Debt Instrument, Interest Rate at Period End Average daily interest rate (as a percent) Debt Instrument, Interest Rate During Period Fixed-rate coupon (as a percent) Fixed interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Debt instrument Debt Instrument [Line Items] Schedule of Long-term Debt Instruments [Table] Remaining discounts on debt Debt Instrument, Unamortized Discount Weighted-Average interest rate on long term debt (as a percent) Debt, Weighted Average Interest Rate Matching contributions to the plan Deferred Compensation Arrangement with Individual, Employer Contribution Deferred Bonus and Profit Sharing Plan, Type of Deferred Compensation [Axis] Deferred Compensation Plans Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Federal Deferred Federal Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred Deferred Income Tax Expense (Benefit) Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Deferred Total deferred tax liabilities Deferred Tax Liabilities, Gross State Deferred State and Local Income Tax Expense (Benefit) Charitable contribution carryforwards Deferred Tax Assets, Charitable Contribution Carryforwards Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred tax assets: Deferred Tax Assets, Net [Abstract] Net operating losses and credit carryforwards Deferred Tax Assets, Operating Loss Carryforwards Other Deferred Tax Assets, Other Stock compensation and deferred compensation plans Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Accrued expense Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Allowance for loan and lease losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses Securities available-for-sale Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Net deferred tax liabilities Deferred Tax Liabilities, Net Deferred tax liabilities Deferred Tax Liabilities, Gross [Abstract] Loan fees and discounts Deferred Tax Liabilities, Financing Arrangements Goodwill and other intangibles Deferred Tax Liabilities, Goodwill and Intangible Assets Lease financing Deferred Tax Liabilities, Leasing Arrangements Other Deferred Tax Liabilities, Other Securities available-for-sale Deferred Tax Liabilities, Other Comprehensive Income Prepaid expenses Deferred Tax Liabilities, Prepaid Expenses Premises and equipment Deferred Tax Liabilities, Property, Plant and Equipment Potential deferred tax liability Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Accumulated other comprehensive (income) loss, before tax Accumulated other comprehensive (income) loss at the beginning of the year Accumulated other comprehensive (income) loss at end of year, before tax Amounts not yet recognized in net periodic benefit cost and included in accumulated other comprehensive loss, before tax Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract] Accumulated actuarial net loss Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax Prior service cost Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax Return on plan assets Actual (loss) on plan assets Defined Benefit Plan, Actual Return on Plan Assets Actuarial (gain) loss Defined Benefit Plan, Actuarial Gain (Loss) Recognized actuarial (gain) loss Transition obligation Defined Benefit Plan, Future Amortization of Transition Obligation (Asset) Prior service credit Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Amortization of transition obligation Transition obligation Defined Benefit Plan, Amortization of Transition Obligations (Assets) Total recognized asset (liability) Defined Benefit Plan, Amounts Recognized in Balance Sheet Amounts recognized in the Consolidated Statements of Financial Condition: Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract] Prior service cost Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during 2012 Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract] Net loss Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year Prepaid (accrued) benefit cost at end of year Defined Benefit Plan, Assets for Plan Benefits Allocation of pension plan assets Defined Benefit Plan, Assets, Target Allocations [Abstract] Assumed health care cost trend rates for the Postretirement Plan Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] Discount rate used to measure the benefit obligations (as a percent) Discount rate (as a percent) Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Discount rate (as a percent) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Expected long-term rate of return on plan assets (as a percent) Total projected benefit obligation Benefit obligation at beginning of year Projected benefit obligation at end of year Defined Benefit Plan, Benefit Obligation Benefits paid Actual claims paid Benefits paid during the period Defined Benefit Plan, Benefits Paid Defined Benefit Plan, Asset Categories [Axis] Change in benefit obligation Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Change in fair value of plan assets: Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Contributions to the plan during the period Defined Benefit Plan, Contributions by Employer Employee Benefit Plans Defined Benefit Plan Disclosure [Line Items] 1% change in assumed health care cost trend rates Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract] Effect on postretirement benefits obligations, decrease Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Effect on total service and interest cost components, decrease Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components Effect on postretirement benefits obligations, increase Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Effect on total service and interest cost components, increase Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components Expected future benefit payments used to determine projected benefit obligations Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] 2019 - 2023 Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter 2014 Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months 2018 Defined Benefit Plan, Expected Future Benefit Payments, Year Five 2017 Defined Benefit Plan, Expected Future Benefit Payments, Year Four 2016 Defined Benefit Plan, Expected Future Benefit Payments, Year Three 2015 Defined Benefit Plan, Expected Future Benefit Payments, Year Two Expected actuarial return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Fair value of plan assets at beginning of year Fair value of plan assets at end of year Defined Benefit Plan, Fair Value of Plan Assets Funded status of plans at end of year Defined Benefit Plan, Funded Status of Plan Actuarial net loss Defined Benefit Plan, Future Amortization of Gain (Loss) Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit) Prior service credits expected to be recognized as components of net periodic benefit cost during 2014 Health care cost trend rate assumed for next year (as a percent) Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year Interest cost Interest cost on projected benefit obligation Defined Benefit Plan, Interest Cost Net periodic benefit plan cost Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost included in compensation and employee benefits expense Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Plan amendment Defined Benefit Plan, Plan Amendments Settlement expense Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Service cost Service cost - benefits earned during the year Defined Benefit Plan, Service Cost Expected contribution in 2014 Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year Target allocation in index mutual funds (as a percent) Defined Benefit Plan, Target Plan Asset Allocations Final health care cost trend rate (as a percent) Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Assumptions used to determine net benefit plan cost Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Employer contribution to the plan Defined Contribution Plan, Cost Recognized Checking Total checking Demand Deposit Accounts Deposits Deposit Liabilities Disclosures [Text Block] Total deposits Checking, savings and money market deposits Deposits Deposits. Deposits: Deposits Deposits Deposits, by Type [Abstract] Money market Deposits, Money Market Deposits Savings Deposits, Savings Deposits Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Gross Amounts Offset Derivative Asset, Fair Value, Gross Liability Notional Amount Derivative Asset, Notional Amount Net Amount Presented Derivative Asset Unutilized cash collateral to offset derivative liability positions Derivative, Collateral, Obligation to Return Cash Cash collateral received Derivative, Collateral, Right to Reclaim Cash Derivative Contract [Domain] Credit risk-related contingent features Derivative, Credit Risk Related Contingent Features [Abstract] Fair value of derivative assets Gross Amounts Recognized Derivative Asset, Fair Value, Gross Asset Amounts not offset in the Consolidated Statement of Financial Condition Derivative Asset, Fair Value, Amount Not Offset Against Collateral Fair value of derivative liabilities Gross Amounts Recognized Derivative Liability, Fair Value, Gross Liability Amounts not offset in the Consolidated Statement of Financial Condition Derivative Liability, Fair Value, Amount Not Offset Against Collateral Derivative Instrument [Axis] Derivative Instruments Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Hedging Relationship [Axis] Derivative Instruments, Gain (Loss) [Table] Derivatives instruments, gain (loss) Derivative Instruments, Gain (Loss) [Line Items] Net Amount Presented Derivative Liability Gross Amounts Offset Derivative Liability, Fair Value, Gross Asset Notional Amount Derivative Liability, Notional Amount Fair value of foreign exchange contracts Derivatives, Fair Value [Line Items] Period of contracts having fixed maturity dates Derivative, Term of Contract Description of types of cash flow hedging instruments used Description of Types of Cash Flow Hedging Instruments Used Description of types of net investment hedging instruments used Description of Types of Net Investment Hedging Instruments Used Designated as Hedges Designated as Hedging Instrument [Member] Directors Director [Member] Stock Compensation Stock Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Restricted stock and stock option transactions under the Company Financial Incentive Stock Program Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Dividends on common stock Dividends on common stock Dividends, Common Stock, Cash Dividends paid on preferred stock Dividends on preferred stock Preferred stock dividends Dividends, Preferred Stock, Cash Federal Domestic Tax Authority [Member] Accounts receivable from bank subsidiary Aggregate amount of loans Due from Related Parties Net income per common share: Net income per common share Earnings Per Common Share Basic (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share, Basic Basic Earnings (Loss) Per Common Share Earnings Per Share, Basic [Abstract] Basic Earnings Per Common Share: Diluted (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Diluted Earnings (Loss) Per Common Share Earnings Per Share, Diluted [Abstract] Diluted Earnings Per Common Share: Earnings Per Common Share Earnings Per Share [Text Block] Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Reconciliation of effective income tax rate from the federal income tax rate Effective Income Tax Rate Reconciliation, Percent [Abstract] Federal income tax rate (as a percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Deferred tax adjustments (as a percent) Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Deductible stock dividends (as a percent) Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent Foreign tax effects (as a percent) Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Non-controlling interest tax effect (as a percent) Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent Compensation deduction limitations (as a percent) Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent Other, net (as a percent) Effective Income Tax Rate Reconciliation, Other Adjustments, Percent State income tax, net of federal income tax (as a percent) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Changes in uncertain tax positions (as a percent) Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Investments in affordable housing (as a percent) Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Percent Tax exempt income (as a percent) Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Civil money penalty (as a percent) Effective Income Tax Rate Reconciliation, Tax Settlement, Percent Unrecognized stock compensation expense for restricted stock awards and options (in dollars) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average amortization period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Tax benefit recognized for stock compensation expense (in dollars) Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Stock Options Employee Stock Option [Member] Equity Investments in Affordable Housing Limited Partnerships Equity and Cost Method Investments, Policy [Policy Text Block] Equity Component [Domain] Joint Venture Equity Method Investments and Joint Ventures [Abstract] Estimated Fair Value Estimate of Fair Value Measurement [Member] Stock compensation tax expense Stock compensation tax benefit (expense) Excess Tax Benefit from Share-based Compensation, Financing Activities Executive officers Executive Officer [Member] Assets and liabilities measured at fair value on a non-recurring basis Assets and liabilities measured at fair value on a recurring basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Measurements, Recurring and Nonrecurring [Table] Balances of assets and liabilities measured at fair value on a recurring and non-recurring basis Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Reconciliation of the assets carried at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions Fair Value, by Balance Sheet Grouping [Table] Fair Value, Hierarchy [Axis] Measurement Basis [Axis] Measurement Frequency [Axis] Netting adjustments Fair Value, Concentration of Credit Risk, Master Netting Arrangements [Member] Fair Value Measurement [Domain] Total financial instruments with off-balance-sheet risk Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset Fair Value Measurement Fair Value Measurement Fair Value Disclosures [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Reconciliation of the liabilities carried at fair value on a recurring basis Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Measurement Frequency [Domain] Fair Value Hierarchy [Domain] Measurement of fair value on a non-recurring basis Fair Value, Measurements, Nonrecurring [Member] Measurement of fair value on a recurring basis Fair Value, Measurements, Recurring [Member] Included in net (loss) income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Included in other comprehensive (loss) income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Decrease in Level 3 assets measured at fair value on a recurring basis Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease) Sales Decreases in fair values recorded within sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Decreases in fair values due to principal pay-downs Principal paydowns / settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Transfers out of Level 3 Transfers between securities measured at fair value using Readily Available Market Prices and securities measured using Company Determined Market Prices Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Balance, beginning of year Balance, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Included in net income (loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Increase (decrease) in Level 3 liabilities measured at fair value on a recurring basis Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Principal paydowns/settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Balance, beginning of year Balance, end of period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Financial instruments with off-balance sheet risk Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] FDIC insurance Federal Deposit Insurance Corporation Premium Expense Federal Home Loan Bank advances Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member] Federal funds purchased Federal Funds Purchased [Member] Federal Home Loan Bank, Advances, Maturities Summary, Floating Rate Variable-rate FHLB advances prepayable monthly Federal Home Loan Bank advances Federal Home Loan Bank Advances [Member] Federal Home Loan Bank Stock Federal Home Loan Bank stock, at cost Federal, Total Federal Income Tax Expense (Benefit), Continuing Operations Federal Reserve Bank stock, at cost Federal Reserve Bank Stock Subtotal Fees and Commissions Card revenue Fees and Commissions, Debit Cards Fees and service charges Fees and Commissions, Depositor Accounts Finance, Loan and Lease Receivables, Held-for-investment, Allowance and Nonperforming Loans, Nonperforming Loans Policy [Policy Text Block] Non-accrual Loans and Leases Loans and Leases Finance, Loan and Lease Receivables, Held-for-investment, Policy [Policy Text Block] Loans and Leases Held for Sale Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block] Fair Value of Financial Instruments Financial Instruments Disclosure [Text Block] Financial instrument assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financial instrument liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Loans acquired with deteriorated credit quality Financing Receivable, Acquired with Deteriorated Credit Quality Collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Allowance for loan and lease losses, other credit loss reserves Financing Receivable, Allowance for Credit Losses [Line Items] Collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Impaired Loans Financing Receivable, Impaired [Line Items] Individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Loan Modifications for Borrowers with Financial Difficulties Financing Receivable, Modifications [Line Items] Total TDR Loans Financing Receivable, Modifications, Recorded Investment Numbers of TDRs Financing Receivable, Modifications, Subsequent Default, Number of Contracts Loan Balance Financing Receivable, Modifications, Subsequent Default, Recorded Investment 60-89 Days Delinquent and Accruing Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 90 Days or More Delinquent and Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Class of Financing Receivable [Axis] Class of Financing Receivable [Domain] Non-accrual Financing Receivable, Recorded Investment, Nonaccrual Status Accruing and Non-accrual Loans and Leases Financing Receivable, Recorded Investment, Past Due [Line Items] Loans and minimum lease payments receivables sold Financing Receivable, Significant Sales Loans and Leases Financing Receivables [Text Block] Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable, Troubled Debt Restructuring [Domain] Accumulated Amortization Amortization expense Finite-Lived Intangible Assets, Accumulated Amortization 2014 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two Finite-Lived Intangible Assets by Major Class [Axis] Estimated amortization expense for intangible assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Gross Amount Intangible assets Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Major Class Name [Domain] Net Amount Finite-Lived Intangible Assets, Net Amortizable intangible assets: Finite-Lived Intangible Assets, Net [Abstract] Amount recorded in connection with the assumption of deposits Finite-Lived Intangible Assets, Period Increase (Decrease) Weighted-Average Amortization Period Finite-Lived Intangible Asset, Useful Life First mortgage lien First Mortgage [Member] Estimated amount to be reclassified from other comprehensive income (loss) into earnings during the next 12 months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Forward foreign exchange contracts Foreign Currency Contract, Asset, Fair Value Disclosure Forward foreign exchange contracts Foreign Currency Contracts, Liability, Fair Value Disclosure Forward foreign exchange contract (losses) gain Foreign Currency Transaction Gain, before Tax Net realized (loss) gain Foreign Currency Transaction Gain (Loss), before Tax Foreign exchange gains (losses) Foreign Currency Transaction Loss, before Tax Forward foreign exchange contracts Foreign Exchange Contract [Member] Forward foreign exchange contracts Foreign Exchange Forward [Member] Foreign, Total Foreign Income Tax Expense (Benefit), Continuing Operations Gains on sales of assets, net Gain on sales of assets, net Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Gains on sales of consumer real estate loans, net Gain (Loss) on Sales of Consumer Loans Gains on sales of auto loans, net Gains on sales of consumer loans Gain (Loss) on Sales of Loans, Net Gain on sale of U.S. government sponsored mortgage backed securities Gain (Loss) on Sales of Mortgage Backed Securities (MBS) Net pretax gain on sale of Visa Class B stock Pretax gain recorded in non-interest income on sale of Visa Class B stock Gain on Sale of Investments Loss on termination of debt Gains (Losses) on Extinguishment of Debt Gain (loss) on redemption of debt Goodwill Goodwill Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill, Impairment Loss Impairment of goodwill Hedging Designation [Axis] Hedging Designation [Domain] Hedging Relationship [Domain] Securities held to maturity Held-to-maturity Securities Amortized Cost Total securities held to maturity 12 months or more, Unrealized Losses Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss Gross unrealized losses and fair value of securities held to maturity that is in a loss position Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] Total, Unrealized Losses Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss Total, fair value Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value Less than 12 months, Unrealized Losses Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss Less than 12 months, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value 12 months or more, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Securities held to maturity: Held-to-maturity Securities, Debt Maturities [Abstract] Fair Value Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Carrying Value Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] Due after 10 Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Fair Value Fair Value Held-to-maturity Securities, Fair Value Securities held to maturity: Held-to-maturity Securities, Parenthetical Disclosure [Abstract] Average Balance Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method Loan Balance Impaired Financing Receivable, Recorded Investment Related Allowance Recorded Impaired Financing Receivable, Related Allowance Impaired loans included in previous amounts disclosed within performing and non-accrual loans and leases and loan modifications for borrowers with financial difficulties Impaired Financing Receivables [Table Text Block] Unpaid Contractual Balance Impaired Financing Receivable, Unpaid Principal Balance Impairment of Intangible Assets (Excluding Goodwill) Impairment of intangible assets Impairment charge on other investments Other than Temporary Impairment Losses, Investments Income before income tax expense "(Loss) income before income tax benefit and equity in undistributed earnings of subsidiaries " Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Equity (deficit) in undistributed earnings of bank subsidiary Equity (deficit) in undistributed earnings of bank subsidiary Income (Loss) from Equity Method Investments Consolidated Statements of Income: Consolidated Statements of Income Consolidated Statements of Income Income Tax Authority [Axis] Income Tax Authority [Domain] Income Taxes Income Taxes Income Tax Disclosure [Text Block] Income taxes, net Income Taxes Paid, Net Accrued interest and penalties Income Tax Examination, Penalties and Interest Accrued Interest and penalties, net of tax effects Income Tax Examination, Penalties and Interest Expense Income tax expense Income tax expense (benefit) Total Income tax benefit Income Tax Expense (Benefit) Total Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract] Income Taxes Income Tax, Policy [Policy Text Block] Net increase in deposits Increase (Decrease) in Deposits Deposits assumed Proceeds from sales of loans and leases held for sale Increase (Decrease) in Loans Held-for-sale Net increase in other assets and accrued expenses and other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Increase (Decrease) in Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Non-participating restricted stock (in shares) Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends Stock options (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Total interest income Interest income Interest and Dividend Income, Operating Interest income: Interest and Dividend Income, Operating [Abstract] Securities available for sale Interest and Dividend Income, Securities, Operating, Available-for-sale Securities held to maturity Interest Income, Securities, Operating, Held-to-maturity Loans and leases Interest and Fee Income, Loans and Leases Total interest expense Interest expense Interest Expense Interest expense: Interest Expense [Abstract] Borrowings Interest Expense, Borrowings Deposits Interest Expense, Deposits Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Net interest income Net interest income (expense) Net interest expense Net interest expense Interest Income (Expense), Net Interest income Interest Income, Operating Interest paid on trust preferred securities Interest Paid Interest on deposits and borrowings Interest Paid, Net Swap agreements Interest Rate Derivative Assets, at Fair Value Swap agreements Interest Rate Derivative Liabilities, at Fair Value Interest rate swaps Interest Rate Swap [Member] Retained residual values of lease receivables Transferor's Interests in Transferred Financial Assets, Fair Value Eliminations Intersegment Eliminations [Member] Investment Holdings [Line Items] Securities available for sale and securities held to maturity Investment Holdings [Table] Investments Investment Owned, at Fair Value Investments Investment, Policy [Policy Text Block] Investments in Affordable Housing Limited Partnerships Investments [Abstract] Schedule of amortized cost, fair value and yield of securities available for sale and securities held to maturity by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Securities Available for Sale and Securities Held to Maturity Investments Investments, Fair Value Disclosure Securities Available for Sale and Securities Held to Maturity Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investment Type [Axis] Investments [Domain] Junior subordinated notes (trust preferred) Junior Subordinated Debt [Member] Junior subordinated notes (trust preferred) Junior Subordinated Notes, Noncurrent Compensation and employee benefits Labor and Related Expense Land Land [Member] Leasehold improvements Leasehold Improvements [Member] Operating leases Leases, Operating [Abstract] Total lease financings Leases Receivable, Gross, Commercial, Lease Financing Litigation Contingencies Legal Matters and Contingencies [Text Block] Tier 1 Leverage Capital Ratios Leverage Ratios [Abstract] Total liabilities Liabilities Total liabilities and equity Liabilities and Equity Liabilities and Equity Liabilities and Equity: Liabilities and Equity [Abstract] Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Line of Credit - TCF Commercial Finance Canada, Inc. Line of Credit [Member] Settlement consideration paid Litigation Settlement, Amount Allowance for loan losses Allowance for loan and lease losses Allowance for loan losses Balance, at the beginning of the period Balance, at the end of the period Total Allowance for loan losses Loans and Leases Receivable, Allowance Allowance for loan and lease losses: Loans and Leases Receivable, Allowance [Abstract] Allowance for Loan and Lease Losses Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Loans: Commercial: Loans and Leases Receivable, Gross, Commercial [Abstract] Commercial Total commercial Loans and Leases Receivable, Commercial, Net of Deferred Income HELOCs included in consumer real estate junior lien portfolio Loans and Leases Receivable, Gross, Consumer, Home Equity Amortizing junior lien mortgage loans included in consumer real estate junior lien portfolio Loans and Leases Receivable, Gross, Consumer, Mortgage Consumer real estate Total consumer real estate and other Loans and Leases Receivable, Consumer, Net of Deferred Income Total consumer real estate Loans and Leases Receivable, Gross, Consumer, Real Estate Consumer real estate: Loans and Leases Receivable, Gross, Consumer, Real Estate [Abstract] Non-accrual Loans and Leases Loans and Leases Receivable Disclosure [Abstract] Net gain (loss) recognized on sale of loans and minimum lease payments receivables Loans and Leases Receivable, Gain (Loss) on Sales, Net Net loss recognized on sale of loans and minimum lease payments receivables Additional funds committed to consumer real estate and commercial loans classified as TDRs Loans and Leases Receivable, Impaired, Commitment to Lend Foregone interest income Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans Original Contractual Interest Due on Accruing TDR Loans Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income Lease Financing Loans and Leases Receivable, Lease Financing, Policy [Policy Text Block] Total loans and leases Loans and Leases Receivable, Net of Deferred Income Loans and leases outstanding: Loans and Leases Receivable, Net of Deferred Income [Abstract] Net loans and leases Loans and Leases Receivable, Net Amount Loans and leases: Loans and Leases Receivable, Net Amount [Abstract] Other Loans and Leases Receivable, Gross, Other New loans made Loans and Leases Receivable, Related Parties, Additions Loans repaid Loans and Leases Receivable, Related Parties, Collections Loans and leases held for sale Loans Held-for-sale, Fair Value Disclosure Loans held for sale Loans pledged as collateral Loans Pledged as Collateral Permanent Loans Receivable, Gross, Commercial, Mortgage Commercial real estate Total commercial real estate Loans Receivable, Gross, Commercial, Real Estate Commercial real estate: Loans Receivable, Gross, Commercial, Real Estate [Abstract] Loans Other Loans Receivable, Fair Value Disclosure Loans and leases held for sale Consumer auto loans sold Loans Receivable Held-for-sale, Net Long-term borrowings Amount Long-term Debt Long-term borrowings Long-term Debt, Fair Value Long-term Borrowings Long-term Debt [Text Block] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Loss Contingency Nature [Axis] Litigation contingencies Loss Contingencies [Line Items] Loss Contingencies [Table] Loss Contingency, Nature [Domain] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Securities Available for Sale Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block] Securities Held to Maturity Marketable Securities, Held-to-maturity Securities, Policy [Policy Text Block] Advertising and marketing Marketing and Advertising Expense Maturities of Subordinated Debt Redemption of subordinated debt Period for settling foreign exchange contracts associated with cash flow hedges Maximum Length of Time Hedged in Cash Flow Hedge Maximum Less than Maximum [Member] Period for settling forward foreign exchange contracts Maximum Remaining Maturity of Foreign Currency Derivatives Minimum Minimum [Member] Non-controlling interest in subsidiaries Stockholders' Equity Attributable to Noncontrolling Interest Net distribution to non-controlling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Money market mutual funds Money Market Funds [Member] Mortgage-backed securities, Other Mortgage-backed Securities, Issued by Private Enterprises Mortgage-backed Securities, Issued by Private Enterprises [Member] U.S. Government sponsored enterprises and federal agencies Mortgage-backed securities, US Government sponsored enterprises and federal agencies Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Mortgage-backed securities: Collateralized Mortgage Backed Securities Collateralized Mortgage Backed Securities [Member] Net (decrease) increase in cash and due from banks Net Cash Provided by (Used in) Continuing Operations Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash flows from investing activities: Cash flows from financing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash flows from operating activities: Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net income attributable to TCF Financial Corporation Net income attributable to TCF Financial Corporation Net Income (Loss) Attributable to Parent Net income attributable to TCF Financial Corporation Net income available to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Net Investment Hedges Net Investment Hedging [Member] Cumulative effect of the change on retained earnings New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets Change in Accounting Principle New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Table] Non-compete agreements Noncompete Agreements [Member] Net investment by non-controlling interest Noncontrolling Interest, Increase from Subsidiary Equity Issuance Income attributable to non-controlling interest Net income attributable to non-controlling interest Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Nonredeemable Non-controlling Interests Noncontrolling Interest [Member] Not Designated as Hedges Not Designated as Hedging Instrument [Member] Total non-interest expense Non-interest expense Noninterest Expense Non-interest expense: Noninterest Expense [Abstract] Total non-interest income Non-interest income Noninterest Income Non-interest income: Noninterest Income [Abstract] Total non-interest income Noninterest Income, Other Other Noninterest Income, Other Operating Income Objectives for using foreign exchange contracts Objectives for Using Derivative Instruments Objectives for using net investment hedging instruments Objectives for Using Net Investment Hedging Instruments Occupancy and equipment Occupancy, Net Derivative Assets: Offsetting Derivative Assets [Abstract] Derivative Liabilities: Offsetting Derivative Liabilities [Abstract] Total Operating Leases, Future Minimum Payments Due Future minimum rental payments for operating leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2018 Operating Leases, Future Minimum Payments, Due in Five Years 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years 2015 Operating Leases, Future Minimum Payments, Due in Two Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Operating lease depreciation Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease Net lease expense including utilities and other operating expenses Operating Leases, Rent Expense, Net Net operating losses carryforwards Operating Loss Carryforwards Operating Operating Segments [Member] Basis of Presentation Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Other assets Other Assets Other Assets Other Assets, Fair Value Disclosure Securities available for sale, Before Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, [Abstract] Securities available for sale: Securities available for sale, Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Securities available for sale, Tax Effect Other Comprehensive Income (Loss), Available-for-sale Securities, Tax [Abstract] Recognized postretirement prior service cost and transition obligation: Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract] Net investment hedges: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax [Abstract] Net investment hedges, Net of Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract] Foreign currency translation adjustment: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract] Foreign currency translation adjustment, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Net unrealized gains (losses), Before Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Net unrealized gains (losses), Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Net unrealized gains (losses), Tax Effect Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Total other comprehensive income (loss), Before Tax Other Comprehensive Income (Loss), before Tax Net unrealized (loss) gain Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Other comprehensive income: Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss): Unrealized (losses) gains arising during the period Unrealized (losses) gains arising during the period, Before Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Unrealized (losses) gains arising during the period, Net of Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Unrealized (losses) gains arising during the period, Tax Effect Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Unrealized gains (losses) arising during the period, Before Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Unrealized gains (losses) arising during the period Unrealized gains (losses) arising during the period, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Total other comprehensive income (loss) Other comprehensive income (loss) Net current-period other comprehensive income Other Comprehensive Income (Loss), Net of Tax Total other comprehensive loss, Net of Tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Recognized postretirement prior service cost and translation obligation, Net of Tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax [Abstract] Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax Total recognized in other comprehensive loss (income) Net actuarial losses arising during the period Net actuarial losses arising during the period, Before Tax Net actuarial losses arising during the period, Net of Tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Net actuarial (gain) loss arising during the period <