Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Foreclosed [Member] Foreclosed [Member] Foreclosed properties [Member] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Federal Reserve Bank Advances [Member] Federal Reserve Bank Advances [Member] Federal Home Loan Bank Advances [Member] Federal Home Loan Bank Advances [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Domain] Mortgage Loans on Real Estate, Loan Type [Domain] Residential Mortgage Interest Only Loans [Member] Interest Only Loans [Member] Interest Only Loans Residential Mortgage Amortizing Loans [Member] Residential Mortgage Amortizing Loans [Member] Residential Mortgage Amortizing Loans [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Credit Card Receivable [Member] Credit Card Receivable [Member] Home Equity Line of Credit [Member] Home Equity Line of Credit [Member] Mortgage Loans on Real Estate [Member] Mortgages [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Cross-Border Outstanding Loans Cross Border Outstanding Loans [Member] Cross-Border Outstanding Loans Credit Concentration Risk [Member] Credit Concentration Risk [Member] Residential Portfolio Segment [Member] Residential Portfolio Segment [Member] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Federal National Mortgage Association (FNMA) Insured Loans [Member] Federal National Mortgage Association (FNMA) Insured Loans [Member] Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member] Commercial Portfolio Segment [Member] Commercial Portfolio Segment [Member] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Accrual Loans [Member] Accrual Loans [Member] Accrual Loans Nonaccrual loans [Member] Nonaccrual loans [Member] Nonaccrual loans [Member] Proceeds due from FHA or VA [Member] Proceeds due from FHA or VA [Member] Proceeds due from FHA or VA [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Mortgage Loans in Process of Foreclosure, Amount Mortgage Loans in Process of Foreclosure, Amount Other Real Estate Other Real Estate Loans transferred from loans to loans held for sale Transfer of Portfolio Loans and Leases to Held-for-sale Transfer of Loans Held-for-sale to Portfolio Loans Transfer of Loans Held-for-sale to Portfolio Loans Loans held for investment sold Loans held for investment sold Carring Amount of Loans Held For Investment Sold Gain (Loss) on Sales of Loans, Net Gain (Loss) on Sales of Loans, Net Loans Pledged as Collateral Loans Pledged as Collateral Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Long-term Debt Long-term Debt Other Short-term Borrowings Other Short-term Borrowings Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Percentage of Loan Portfolio Current Percentage of Loan Portfolio Current Percentage Of Loan Portfolio Current Loans And Leases Receivable Individually Evaluated For Impairment Loans And Leases Receivable Individually Evaluated For Impairment Loans and Leases Receivable, Individually Evaluated for Impairment Financing Receivable, Modifications, Recorded Investment Financing Receivable, Modifications, Recorded Investment Accruing TDRs current Percentage Of Accruing Troubled Debt Restructurings, Current Percentage Of Accruing Troubled Debt Restructurings, Current Loans and Leases Receivable, Gross, Foreign Loans and Leases Receivable, Gross, Foreign Loans held for investment Loans and Leases Receivable, Gross Loan subcategory as a percent of total loans Loan subcategory as a percent of total loans Subcategory of loans as a percentage of total loans Unused Commitments to Extend Credit Unused Commitments to Extend Credit Government Guarantee Percent Government Guarantee Percent Government Guarantee Percent Commercial and Industrial Sector [Member] Commercial Real Estate [Member] Commercial Real Estate [Member] Commercial Real Estate [Member] Commercial Real Estate Portfolio Segment [Member] Commercial Construction [Member] Commercial Construction [Member] Commercial Construction Residential Nonguaranteed [Member] Residential Mortgages - Nonguaranteed [Member] Residential Nonguaranteed Residential Construction [Member] Residential Construction [Member] Residential Construction Consumer Other Direct [Member] Consumer Other Direct [Member] Consumer Other Direct Consumer Portfolio Segment [Member] Consumer Portfolio Segment [Member] Consumer Indirect [Member] Consumer Indirect [Member] Consumer Indirect Accruing Current Financing Receivable, Recorded Investment, Current Accruing 30-89 Days Past Due Financing Receivable, Recorded Investment, 30 to 89 Days Past Due Financing Receivable, Recorded Investment, 30 to 89 Days Past Due Accruing 90+ Days Past Due Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Nonaccruing Financing Receivable, Recorded Investment, Nonaccrual Status Total Portfolio Balances and Delinquency Balances Based on 90 days or more Past Due and Net Charge-Offs Related to Managed Portfolio Loans (parenthetical) [Abstract] Portfolio Balances and Delinquency Balances Based on 90 days or more Past Due and Net Charge-Offs Related to Managed Portfolio Loans (parenthetical) [Abstract] Schedule of Servicing Assets at Fair Value [Table] Schedule of Servicing Assets at Fair Value [Table] Financial Instrument [Axis] Financial Instrument [Axis] Types of Financial Instruments [Domain] Financial Instruments [Domain] Residential Mortgage [Member] Residential Mortgage [Member] Loans Held For Sale [Member] Loans Held-For-Sale [Member] Loans Held-for-Sale Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Cash Flows Between Transferor and Transferee, Receipts on Transferor's Interest in Transferred Financial Assets, Other Cash Flows Between Transferor and Transferee, Receipts on Transferor's Interest in Transferred Financial Assets, Other LHFS excluded from managed loans disclosure LHFS excluded from managed loans disclosure LHFS excluded from managed loans disclosure LHFS Accruing90OrMoreDaysPastDueAndNonaccruingExcludedFromManagedLoanDisclosure LHFS Accruing90OrMoreDaysPastDueAndNonaccruingExcludedFromManagedLoanDisclosure LHFS Accruing 90 Or More Days Past Due And Nonaccruing, Excluded From Managed Loan Disclosure Earnings Per Share [Abstract] Reconciliation of Net Income/(Loss) to Net Income/(Loss) Available to Common Shareholders Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block] Net Income/(Loss) Per Share Earnings Per Share [Text Block] Guarantees [Abstract] Guarantees Guarantees [Text Block] Allowance for Credit Losses [Abstract] Allowance for Credit Losses [Abstract] Statement [Table] Statement [Table] Nonperforming Financing Receivable [Member] Nonperforming Financial Instruments [Member] Eligible Item or Group for Fair Value Option [Axis] Eligible Item or Group for Fair Value Option [Axis] Fair Value, Option, Eligible Item or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Statement [Line Items] Statement [Line Items] Allowance for Loan and Lease Losses [Roll Forward] Balance at beginning of period Loans and Leases Receivable, Allowance Provision for loan losses Provision for Loan and Lease Losses Allowance for Loan and Lease Losses, Write-offs Allowance for Loan and Lease Losses, Write-offs Loan recoveries Allowance for Loan and Lease Loss, Recovery of Bad Debts Balance at end of period Loans Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Commercial and Industrial Sector [Member] Loans Held for Sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Fair Value Disclosures [Abstract] Asset Class [Axis] Asset Class [Axis] Fair Value by Asset Class [Domain] Asset Class [Domain] Other Assets [Member] Other Assets [Member] Brokered Deposits [Member] Brokered Deposits [Member] Brokered Deposits Residential Mortgage, Loans Held For Sale [Member] Residential Mortgage, Loans Held-For-Sale [Member] Residential Mortgage Loans Held-For-Sale Asset-backed Securities [Member] Asset-backed Securities [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Long-term Debt [Member] Long-term Debt [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Student Loans [Member] Student Loans [Member] Student Loans Property Subject to Operating Lease [Member] Property Subject to Operating Lease [Member] Interest Rate Lock Commitments [Member] Interest Rate Lock Commitments [Member] Equity Securities [Member] Equity Securities [Member] Federal Reserve Bank Stock [Member] Federal Reserve Bank Stock [Member] Federal Reserve Bank Stock Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Measurements, Nonrecurring [Member] Government Guarantee Percent Asset Impairment Charges Asset Impairment Charges Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Transfers to other balance sheet line items Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liabilities Transfers To From Other Line Items In The Balance Sheet Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liabilities, Transfers To/From Other Line Items in the Balance Sheet Investments, Fair Value Disclosure Investments, Fair Value Disclosure Derivative Assets Derivative Asset Derivative Liabilities Derivative Liability TDR modificatons (parenthetical) [Abstract] TDR modificatons (parenthetical) [Abstract] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Securities Purchased under Agreements to Resell [Abstract] Fair Value of Securities Received as Collateral that Can be Resold or Repledged Fair Value of Securities Received as Collateral that Can be Resold or Repledged Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Statement of Stockholders' Equity [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series F Preferred Stock [Member] Series F Preferred Stock [Member] Common Stock [Member] Common Stock [Member] Series B Preferred Stock [Member] Series B Preferred Stock [Member] Series E Preferred Stock [Member] Series E Preferred Stock [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Preferred Stock [Member] Preferred Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Treasury Stock and Other Treasury Stock [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, beginning of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Common Stock, Shares, Outstanding, beginning of period Common Stock, Shares, Outstanding Net Income (Loss) Attributable to Parent Net Income (Loss) Attributable to Parent Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax Noncontrolling Interest, Period Increase (Decrease) Noncontrolling Interest, Period Increase (Decrease) Dividends, Common Stock, Cash Dividends, Common Stock, Cash Dividends, Preferred Stock, Cash Dividends, Preferred Stock, Cash Stock Issued During Period, Value, New Issues Stock Issued During Period, Value, New Issues Treasury Stock, Shares, Acquired Treasury Stock, Shares, Acquired Treasury Stock, Value, Acquired, Cost Method Treasury Stock, Value, Acquired, Cost Method Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock Issued During Period, Value, Stock Options Exercised Stock Issued During Period, Value, Stock Options Exercised Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition Stock Issued During Period, Shares, Employee Benefit Plan Stock Issued During Period, Shares, Employee Benefit Plan Stock Issued During Period, Value, Employee Benefit Plan Stock Issued During Period, Value, Employee Benefit Plan Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Stock Issued During Period, Value, Other Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, end of period Common Stock, Shares, Outstanding, end of period Certain Transfers of Financial Assets and Variable Interest Entities [Abstract] Certain Transfers of Financial Assets and Variable Interest Entities [Abstract] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Underlying Asset Class [Domain] Underlying Asset Class [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Asset-backed Securities, Securitized Loans and Receivables [Member] Asset-backed Securities, Securitized Loans and Receivables [Member] Loans [Member] Loans [Member] Class of Financing Receivable, Type [Domain] Loans and Finance Receivables [Member] Loans and Finance Receivables [Member] Principal Balance Principal Amount Outstanding of Loans Held-in-portfolio Principal Amount Outstanding on Loans Managed and Securitized or Asset-backed Financing Arrangement Principal Amount Outstanding on Loans Managed and Securitized or Asset-backed Financing Arrangement Delinquent Amount at End of Period on Loans Managed and Securitized or Asset-backed Financing Arrangement Delinquent Amount at End of Period on Loans Managed and Securitized or Asset-backed Financing Arrangement Net Credit Losses During Period on Loans Managed or Securitized or Asset-backed Financing Arrangement Net Credit Loss on Loans Managed or Securitized or Asset-backed Financing Arrangement Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Other Liabilities [Member] Other Liabilities [Member] Derivative Financial Instruments, Liabilities [Member] Derivative Financial Instruments, Liabilities [Member] US States and Political Subdivisions Debt Securities [Member] US States and Political Subdivisions Debt Securities [Member] Other Debt Obligations [Member] Other Debt Obligations [Member] Collateralized Debt Obligations [Member] Collateralized Debt Obligations [Member] Mortgage-backed Securities, Issued by Private Enterprises [Member] Mortgage-backed Securities, Issued by Private Enterprises [Member] Trading Account Assets [Member] Trading Securities [Member] Trading Assets [Member] Trading Assets [Member] Trading Assets Available-for-sale Securities [Member] Available-for-sale Securities [Member] Loans Held For Investment [Member] Loans Held-For-Investment [Member] Loans Held for Investment Derivative contracts, net [Member] Derivative contracts, net [Member] Derivative contracts, net [Member] Included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Transferred Out of Level 3 in The Fair Value Hierarchy Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liabilities Transfers Into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liabilities Transfers Out Of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Change in unrealized gains / (losses) included in earnings for the period related to financial assets still held at the end of period Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Other Income Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Activity in the Allowance for Credit Losses Allowance for Credit Losses on Financing Receivables [Table Text Block] Activity in the ALLL by Segment Allowance Activity By Segment [Table Text Block] Allowance Activity By Segment [Table Text Block] Loans Held for Investment portfolio and Related Allowance for Loan and Lease Losses Loans And Related Allowance [Table Text Block] Loans And Related Allowance [Table Text Block] Fair Value Election and Measurement Fair Value Disclosures [Text Block] Investments, Debt and Equity Securities [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Other Than Temporarily Impaired Securities [Member] Other Than Temporarily Impaired Securities [Member] Other Than Temporarily Impaired Securities Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Gross Realized Gains Available-for-sale Securities, Gross Realized Gains Available-for-sale Securities, Gross Realized Losses Available-for-sale Securities, Gross Realized Losses Available-for-sale Securities Available-for-sale Securities Federal Home Loan Bank (FHLB) of Atlanta stock (par value) Federal Home Loan Bank Stock Federal Reserve Bank Stock Federal Reserve Bank Stock Mutual fund investments (par value) Mutual Fund Investments Mutual Fund Investments Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill [Table Text Block] Schedule of Goodwill [Table Text Block] Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Key Characteristics, Inputs, and Economic Assumptions Used to Estimate the Fair Value of the Company's MSRs Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Table Text Block] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] OREO Other repossessed assets Other Repossessed Assets Loans Held-for-sale, Other Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Other Total nonperforming assets Loans And Leases Receivable Net Reported Amount Nonperforming Assets Loans and Leases Receivable, Net Reported Amount, Nonperforming Assets Commitments and Contingencies Disclosure [Abstract] Contingencies Commitments and Contingencies Disclosure [Text Block] Income Taxes - Additional Information [Abstract] Income Taxes - Additional Information [Abstract] Income Taxes Other Information [Table] Income Taxes Other Information [Table] Income Taxes Other Information [Table] Income Taxes Other Information [Axis] Income Taxes Other Information [Axis] Income Taxes Other Information [Axis] Income Taxes Other Information [Domain] Income Taxes Other Information [Domain] [Domain] for Income Taxes Other Information [Axis] Income Taxes Other Information [Line Items] Income Taxes Other Information [Line Items] [Line Items] for Income Taxes Other Information [Table] Income Tax Expense (Benefit) Income Tax Expense (Benefit) Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, Percent discrete income tax benefit discrete income tax benefit discrete income tax benefit Unrecognized Tax Benefits Unrecognized Tax Benefits Decrease in Unrecognized Tax Benefits is Reasonably Possible Decrease in Unrecognized Tax Benefits is Reasonably Possible Statement of Financial Position [Abstract] Trading Securities [Member] Restricted Stock [Member] Restricted Stock [Member] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Primary Beneficiary [Member] Variable Interest Entity, Primary Beneficiary [Member] Assets Assets [Abstract] Cash and Due from Banks Cash and Due from Banks Federal Funds Sold and Securities Purchased under Agreements to Resell Federal Funds Sold and Securities Purchased under Agreements to Resell Interest-bearing Deposits in Banks and Other Financial Institutions Interest-bearing Deposits in Banks and Other Financial Institutions Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Trading assets Trading Securities Loans and Leases Receivable, Allowance Net loans Loans and Leases Receivable, Net Amount Premises and equipment Property, Plant and Equipment, Net Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible Assets, Net (Excluding Goodwill) Other Assets Other Assets Total assets Assets Liabilities and Shareholders' Equity Liabilities and Equity [Abstract] Noninterest-bearing consumer and commercial deposits Noninterest-bearing Deposit Liabilities, Domestic Interest-bearing Deposit Liabilities Interest-bearing Deposit Liabilities Total deposits Deposits Funds purchased Federal Funds Purchased Securities Sold under Agreements to Repurchase Securities Sold under Agreements to Repurchase Trading liabilities Trading Liabilities Other Liabilities Other Liabilities Total liabilities Liabilities Preferred Stock, Value, Outstanding Preferred Stock, Value, Outstanding Common Stock, Value, Outstanding Common Stock, Value, Outstanding Additional paid in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Treasury stock, at cost, and other Treasury Stock, Value Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax Total shareholders' equity Total liabilities and shareholders' equity Liabilities and Equity Common Stock, Shares, Outstanding Common shares authorized Common Stock, Shares Authorized Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Treasury shares of common stock Treasury Stock, Shares Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value Stockholders' Equity Attributable to Noncontrolling Interest Stockholders' Equity Attributable to Noncontrolling Interest Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Significant Accounting Policies [Text Block] Repurchase Requests [Abstract] Repurchase Requests [Table Text Block] Repurchase Requests [Table Text Block] Mortgage Loan Repurchase Losses Mortgage Loans Repurchase Reserve Rollforward [Table Text Block] Disclosures about the reserve for mortgage loan repurchase losses Repurchased Mortgage Loan [Table Text Block] Repurchased Mortgage Loan [Table Text Block] Repurchased Mortgage Loan [Table Text Block] Gurantees [Abstract] Gurantees [Abstract] Unpaid Principal Balance Of Unresolved Repurchase Requests Unpaid Principal Balance Of Unresolved Repurchase Requests Unpaid principal balance of loans related to unresolved requests previously received from investors Unpaid Principal Balance of Repurchase Requests Received Unpaid Principal Balance of Repurchase Requests Received Unpaid Principal Balance of Repurchase Requests Received. Unpaid Principal Balance of Repurchase Requests Resolved by Repurchase Unpaid Principal Balance of Repurchase Requests Resolved by Repurchase Unpaid Principal Balance of Repurchase Requests Resolved by Repurchase Unpaid Principal Balance of Repurchase Requests Resolved by Settlement Unpaid Principal Balance of Repurchase Requests Resolved by Settlement Unpaid Principal Balance of Repurchase Requests Resolved by Settlement Unpaid Principal Balance of Repurchase Request Loans Resolved Unpaid Principal Balance of Repurchase Request Loans Resolved Unpaid Principal Balance of Repurchase Request Loans Resolved Statement of Cash Flows [Abstract] Mortgage Servicing Rights, Fair Value [Member] Mortgage Servicing Rights, Fair Value [Member] Mortgage Servicing Rights, Fair Value Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income/(loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Gain (Loss) on Disposition of Business Gain (Loss) on Disposition of Business Depreciation, Amortization and Accretion, Net Depreciation, Amortization and Accretion, Net Payments to Acquire Mortgage Servicing Rights (MSR) Payments to Acquire Mortgage Servicing Rights (MSR) Provisions For Credit Losses And Foreclosed Properties Provisions For Credit Losses And Foreclosed Properties Provision for credit losses and foreclosed properties Stock Option Compensation And Amortization Of Restricted Stock Compensation Stock Option Compensation And Amortization Of Restricted Stock Compensation Stock option compensation and amortization of restricted stock compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Excess Tax Benefit from Share-based Compensation, Operating Activities Gain (Loss) on Sale of Securities, Net Gain (Loss) on Sale of Securities, Net Gain (Loss) on Sale of Loans and Leases Gain (Loss) on Sale of Loans and Leases Net decrease/(increase) in loans held for sale Increase (Decrease) in Loans Held-for-sale Increase (Decrease) in Trading Securities Increase (Decrease) in Trading Securities Net (increase)/decrease in other assets Increase (Decrease) in Other Operating Assets Increase (Decrease) in Other Operating Liabilities Increase (Decrease) in Other Operating Liabilities Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from sales of securities available for sale Proceeds from Sale of Available-for-sale Securities Purchases of securities available for sale Payments to Acquire Available-for-sale Securities Proceeds from sales of trading securities Proceeds from Sale of Other Investments Proceeds from (payments for) Originations and Purchases of Loans Held-for-investment Proceeds from (payments for) Originations and Purchases of Loans Held-for-investment Cash inflow (outflow) associated with originating (net of principal collections) and purchasing loans held for investment purposes during the period. Proceeds from sales of loans Proceeds from Sale of Loans Held-for-investment Payments for (Proceeds from) Mortgage Servicing Rights Payments for (Proceeds from) Mortgage Servicing Rights Capital expenditures Payments to Acquire Property, Plant, and Equipment Payments related to acquisitions, including contingent consideration Other Payments to Acquire Businesses Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Proceeds from Sale of Other Real Estate Proceeds from Sale of Other Real Estate Net cash (used in)/provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net (decrease)/increase in total deposits Increase (Decrease) in Deposits Net increase/(decrease) in funds purchased, securities sold under agreements to repurchase, and other short-term borrowings Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Proceeds from Issuance of Long-term Debt Proceeds from Issuance of Long-term Debt Repayment of long-term debt Repayments of Long-term Debt Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Common and preferred dividends paid Payments of Ordinary Dividends Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Net cash provided by/(used in) financing activities Net Cash Provided by (Used in) Financing Activities Net (decrease)/increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental Disclosures: Supplemental Cash Flow Information [Abstract] Transfer to Other Real Estate Real Estate Owned, Transfer to Real Estate Owned non-cash impact of deconsolidated assets non-cash impact of deconsolidated assets non-cashimpactofdeconsolidatedassets [Table Text Block] Non-cash impact of debt acquired by purchaser in leverage lease sale Non-cash impact of debt acquired by purchaser in leverage lease sale Non-cash impact of debt acquired by purchaser in lease sale Provision for Mortgage Loan Repurchase Losses Provision for Mortgage Loan Repurchase Losses Provision for mortgage loan repurchase losses. Deferred Income Tax Expense (Benefit) Deferred Income Tax Expense (Benefit) Interest Paid Interest Paid Income Taxes Paid Income Taxes Paid Proceeds from Income Tax Refunds Proceeds from Income Tax Refunds Amortization Of Deferred Gain On Sale Lease Back Of Premises Amortization Of Deferred Gain On Sale Lease Back Of Premises Amortization of deferred gain on sale lease back of premises. Employee Benefit Plans [Abstract] Employee Benefit Plans [Abstract] Stock-Based Compensation Expense Recognized in Noninterest Expense Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] indirect auto loan servicing rights [Member] indirect auto loan servicing rights [Member] indirect auto loan servicing rights [Member] Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Adverse Change in Assumption, by Type [Axis] Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Adverse Change in Assumption, by Type [Axis] Document Period End Date Document Period End Date Servicing Asset at Fair Value, Amount Servicing Asset at Fair Value, Amount Bank Servicing Fees Bank Servicing Fees Servicing Asset at Fair Value, Amount Servicing Asset at Amortized Cost Prepayment rate assumption (annual) Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed Decline in fair value from 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed Decline in fair value from 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed Discount rate (annual) Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate Decline in fair value from 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate Decline in fair value from 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate Weighted-average life (in years) Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life Weighted-average coupon Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Weighted Average Coupon Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Coupon Unpaid Principal Balance of Outstanding Underlying MSRs Transferred Unpaid Principal Balance of Outstanding Underlying MSRs Transferred Unpaid Principal Balance of Outstanding Underlying MSRs Transferred Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Tax Disclosure [Text Block] Transfers and Servicing of Financial Assets [Text Block] Transfers and Servicing of Financial Assets [Text Block] Segment Reporting [Abstract] Business Segment Reporting Schedule of Segment Reporting Information, by Segment [Table Text Block] Individually evaluated Financing Receivable, Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Collectively evaluated Financing Receivable, Collectively Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Total evaluated Loans and Leases Receivable, Excluding Fair Value Loans Loans and Leases Receivable, Excluding Fair Value Loans Loans And Leases Receivable Allowance Loans Evaluated For Impairment Excluding Fair Value Loans Loans And Leases Receivable Allowance Loans Evaluated For Impairment Excluding Fair Value Loans Loans and Leases Receivable, Allowance, Loans Evaluated for Impairment Excluding Fair Value Loans Loans Receivable, Fair Value Disclosure Loans Receivable, Fair Value Disclosure Loans and Leases Receivable, Allowance Schedule of Assets Sold under Agreements to Repurchase [Table] Schedule of Assets Sold under Agreements to Repurchase [Table] Securities or Other Assets Sold under Agreements to Repurchase, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Assets Sold under Agreements to Repurchase, Maturity Period [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Assets Sold under Agreements to Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line Items] Carrying Value of Securities Purchased under Agreements to Resell and Deposits Paid for Securities Borrowed Securities Purchased under Agreements to Resell, Gross Securities Purchased under Agreements to Resell, Amount Offset Against Collateral Securities Purchased under Agreements to Resell, Liability Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure Held Financial Instruments, Not Separately Reported, Securities for Reverse Repurchase Agreements Securities Purchased under Agreements to Resell, Not Subject to Master Netting Arrangement Securities Borrowed or Purchased Under Agreements to Resell, Amount Not Offset Against Collateral Securities Purchased under Agreements to Resell, Amount Offset Against Collateral Securities Sold under Agreements to Repurchase, Gross Securities Sold under Agreements to Repurchase, Gross Securities Sold Under Agreements to Repurchase, Amount Offset Against Collateral Securities Sold under Agreements to Repurchase, Asset Securities Sold under Agreements to Repurchase Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements Securities Sold under Agreements to Repurchase, Not Subject to Master Netting Arrangement Securities Sold Under Agreements to Repurchase, Amount Not Offset Against Collateral Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral Loans Held-for-sale, Fair Value Disclosure Loans Held-for-sale, Fair Value Disclosure Long-term Debt, Fair Value Long-term Debt, Fair Value Common stock, par value Common Stock, Par or Stated Value Per Share Loans Receivable Held-for-sale, Net Trading Assets and Liabilities and Derivatives [Abstract] Trading Assets and Liabilities and Derivatives[Abstract] Trading Securities (and Certain Trading Assets) [Table Text Block] Trading Securities [Table Text Block] Trading Assets and Liabilities and Derivatives [Text Block] Trading Assets and Liabilities and Derivatives [Text Block] Trading Assets and Liabilities and Derivatives[Text Block] Estimate of Fair Value, Fair Value Disclosure [Member] Estimate of Fair Value Measurement [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Affordable Housing [Member] Affordable Housing [Member] Affordable Housing Reported Value Measurement [Member] Reported Value Measurement [Member] Gains (Losses) on Sales of Investment Real Estate Gains (Losses) on Sales of Investment Real Estate Financial assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Cash and Cash Equivalents, Fair Value Disclosure Cash and Cash Equivalents, Fair Value Disclosure Loans Net Fair Value Disclosure Loans Net Fair Value Disclosure Loans, Net, Fair Value Disclosure Financial liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Consumer And Commercial Deposits, Fair Value Disclosure Consumer And Commercial Deposits, Fair Value Disclosure Consumer and Commercial Deposits, Fair Value Disclosure Short Term Borrowings Fair Value Disclosure Short Term Borrowings Fair Value Disclosure Short-Term Borrowings, Fair Value Disclosure Trading liabilities Trading Liabilities, Fair Value Disclosure Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] provision for income taxes [Member] provision for income taxes [Member] provision for income taxes [Member] Other Expense [Member] Other Expense [Member] Asset Class [Domain] current or deferred income tax expense [Axis] current or deferred income tax expense [Axis] current or deferred income tax expense [Axis] current or deferred income tax expense [Domain] current or deferred income tax expense [Domain] [Domain] for current or deferred income tax expense [Axis] Investments, by Tier [Axis] Investments, by Tier [Axis] Investments, by Tier Investments, by Tier [Domain] Investments, by Tier [Domain] Investments, by Tier [Domain] Limited Partner [Member] Limited Partner [Member] Credit Quality Indicator [Axis] Customer Securities for which Entity has Right to Sell or Repledge [Axis] Customer Securities for which Entity has Right to Sell or Repledge [Axis] Customer Securities for which Entity has Right to Sell or Repledge, Securities Type [Domain] Customer Securities for which Entity has Right to Sell or Repledge, Securities Type [Domain] Commercial and Corporate Loans [Member] Commercial and Corporate Loans [Member] Commercial and Corporate Loans Total Return Swap Total Return Swap [Member] Community Development Investments [Member] Community Development Investments [Member] Community Development Investments Variable Interest Entity, Not Primary Beneficiary [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Maximum [Member] Maximum [Member] Fair Value, Assets and Liabilities Components [Axis] Fair Value, Assets and Liabilities Components [Axis] Fair Value, Assets and Liabilities Components Axis Fair Value, Assets and Liabilities Component [Domain] Fair Value, Assets and Liabilities Component [Domain] Fair Value, Assets and Liabilities Component Domain Preference Shares [Member] Preference Shares [Member] Preference Shares Senior Subordinated Notes [Member] Senior Subordinated Notes [Member] Affordable Housing Investment [Member] Affordable Housing Investment [Member] Affordable Housing Investment [Member] Loans and Leases Receivable, Gain (Loss) on Sales, Net Loans and Leases Receivable, Gain (Loss) on Sales, Net Transferor's Interests in Transferred Financial Assets, Fair Value Transferor's Interests in Transferred Financial Assets, Fair Value Total liabilities Assets Loans Receivable, Net Loans Receivable, Net Derivative, Notional Amount Derivative, Notional Amount Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Gross Asset Derivative Liability, Fair Value, Gross Liability Derivative Liability, Fair Value, Gross Liability Properties sold, carrying value Properties Sold, Carrying Value Properties Sold, Carrying Value Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Loans issued by the Company to the limited partnerships Loans, Interest-Rate Swaps, or Letters of Credit To Limited Partnership Amount of loans issued by the Company to limited partnerships in which the Company is a limited partner. Affordable Housing Tax Credits and Other Tax Benefits, Amount Affordable Housing Tax Credits and Other Tax Benefits, Amount Amortization Method Qualified Affordable Housing Project Investments, Amortization Amortization Method Qualified Affordable Housing Project Investments, Amortization Real Estate Variable Interest Entity Borrowings Real Estate Variable Interest Entity Borrowings Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement Proceeds from Securitizations of Consumer Loans Proceeds from Securitizations of Consumer Loans Amortization of Intangible Assets Amortization of Intangible Assets Amortization Amortization Other Noninterest Expense Other Noninterest Expense Defined Contribution Plan [Table] Defined Contribution Plan [Table] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Domain] Defined Contribution Plan Type [Domain] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Domain] Defined Contribution Plan Name [Domain] Collective Bargaining Arrangement [Axis] Collective Bargaining Arrangement [Axis] Collective Bargaining Arrangement [Domain] Collective Bargaining Arrangement [Domain] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Components: Financing Receivable, Allowance for Credit Losses [Roll Forward] Balance at beginning of period Financing Receivable, Allowance for Credit Losses Provision for Other Credit Losses Provision for Other Credit Losses Balance at end of period Loans and Leases Receivable, Allowance Unfunded commitments reserve Other Liabilities Reserve For Unfunded Lending Commitments Other Liabilities, Reserve for unfunded lending commitments. Allowance for credit losses Securities Sold under Agreements to Repurchase [Abstract] securities sold under agreement to repurchase maturity [Table] securities sold under agreement to repurchase maturity [Table] securities sold under agreement to repurchase maturity [Table] Maturity Overnight [Member] Maturity Overnight [Member] Maturity up to 30 days [Member] Maturity Less than 30 Days [Member] US Treasury Securities [Member] US Treasury Securities [Member] US Government Agencies Debt Securities [Member] US Government Agencies Debt Securities [Member] Commercial Paper [Member] Commercial Paper [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] securities sold under agreement to repurchase maturity [Line Items] securities sold under agreement to repurchase maturity [Line Items] [Line Items] for securities sold under agreement to repurchase maturity [Table] Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net Income (Loss) Available to Common Stockholders, Basic Net Income (Loss) Available to Common Stockholders, Basic Average basic common shares Weighted Average Number of Shares Outstanding, Basic Stock options Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Restricted stock Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted Net income/(loss) per average common share - diluted Earnings Per Share, Diluted Earnings Per Share, Basic Earnings Per Share, Basic Series A Preferred Stock [Member] Series A Preferred Stock [Member] Treasury Stock, Value Common stock dividends, per share Common Stock, Dividends, Per Share, Cash Paid Preferred Stock, Dividends, Per Share, Cash Paid Preferred Stock, Dividends, Per Share, Cash Paid Deferred Compensation Equity Deferred Compensation Equity Stockholders' Equity Attributable to Noncontrolling Interest Derivative Instruments and Hedging Activities Disclosure [Abstract] Interest rate futures [Member] Interest rate futures [Member] Interest rate futures [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Fair Value Hedging Fair Value Hedging [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Credit Default Swap, Buying Protection [Member] Credit Default Swap, Buying Protection [Member] Other Trading [Member] Other Trading [Member] Interest Rate Contract [Member] Interest Rate Contract [Member] Foreign Exchange Contract Foreign Exchange Contract [Member] Credit Risk Contract [Member] Credit Risk Contract [Member] Equity Contract [Member] Equity Contract [Member] Other Contract [Member] Other Contract [Member] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Adjustable Rate Loans [Member] Adjustable Rate Loans [Member] Fixed Income Interest Rate [Member] Fixed Income Interest Rate [Member] Mortgage Servicing Rights [Member] Mortgage Servicing Rights [Member] Mortgage Servicing Rights Derivative Asset, Notional Amount Derivative Asset, Notional Amount Derivative Liability, Notional Amount Derivative Liability, Notional Amount Derivative, Fair Value, Amount Offset Against Collateral, Net Derivative, Fair Value, Amount Offset Against Collateral, Net Derivative Asset, Collateral, Obligation to Return Cash, Offset Derivative Asset, Collateral, Obligation to Return Cash, Offset Derivative Liability, Collateral, Right to Reclaim Cash, Offset Derivative Liability, Collateral, Right to Reclaim Cash, Offset Derivative Assets Interest Income, Securities, Taxable Interest Income, Securities, Operating, Taxable Interest Income, Securities, Tax Exempt Interest Income, Securities, Operating, Tax Exempt Dividend Income, Operating Dividend Income, Operating Interest and Dividend Income, Securities, Available-for-sale Interest and Dividend Income, Securities, Operating, Available-for-sale Derivative Positions Schedule of Derivative Instruments [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Derivative Instruments, Gain (Loss) [Table Text Block] Netting of financial instruments - derivatives [Table Text Block] Netting of financial instruments - derivatives [Table Text Block] Netting of financial instruments - derivatives [Table Text Block] Financing Receivable, Restructured, Payment Default During Peiriod, Number of Contracts Financing Receivable, Restructured, Payment Default During Period, Number of Contracts Financing Receivable, Restructured, Payment Default During Period, Number of Contracts Financing Receivable, Restructured, Payment Default During Period, Amortized Cost at Default Financing Receivable, Restructured, Payment Default During Period, Amortized Cost at Default Financing Receivable, Restructured, Payment Default During Period, Amortized Cost at Default Federal Funds Sold Federal Funds Sold Securities Borrowed Securities Borrowed Securities Purchased under Agreements to Resell Securities Purchased under Agreements to Resell Federal Funds Sold and Securities Purchased under Agreements to Resell Accumulated Other Comprehensive Income Loss [Abstract] Accumulated Other Comprehensive Income Loss [Abstract] Components of AOCI [Axis] Components of AOCI [Axis] Component of AOCI [Axis] Component of AOCI [Domain] Component of AOCI [Domain] [Domain] for Component of AOCI [Axis] Derivative [Member] Derivative [Member] Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Total Unrealized Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Total Unrealized Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Total Unrealized Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Consumer Banking and Private Wealth Management [Member] Consumer Banking and Private Wealth Management [Member] consumer banking and private wealth management [Member] Wholesale Banking [Member] Wholesale Banking [Member] Wholesale Banking [Member] Mortgage Banking Mortgage Banking [Member] Mortgage Banking [Member] Corporate Other Corporate Other [Member] Corporate Other Reconciling Items Segment Reconciling Items [Member] Number of Operating Segments Number of Operating Segments Segment Reporting Information Average Total Loans Segment Reporting Information Average Total Loans Segment Reporting Information Average Total Loans Segment Reporting Information Average Total Deposits Segment Reporting Information Average Total Deposits Segment Reporting Information Average Total Deposits Average total assets Segment Reporting Information Average Total Assets Segment Reporting Information, Average Total Assets Average total liabilities Segment Reporting Information Average Total Liabilities Segment Reporting Information, Average Total Liabilities Average total equity Segment Reporting Information Average Total Equity Segment Reporting Information, Average Total Equity Net, interest income Interest Income (Expense), Net FTE adjustment Segment Reporting Information Fully Taxable Equivalent Adjustment Segment Reporting Information, Fully Taxable-Equivalent Adjustment Segment Reporting Information Net Interest Income Including Fully Taxable Equivalent Adjustment Segment Reporting Information Net Interest Income Including Fully Taxable Equivalent Adjustment Segment Reporting Information, Net Interest Income Including Fully Taxable-Equivalent Adjustment Provision for Loan, Lease, and Other Losses Provision for Loan, Lease, and Other Losses Segment Reporting Information Net Interest Income After Provision For Credit Losses and Taxable Equivalent Adjustment Segment Reporting Information Net Interest Income After Provision For Credit Losses and Taxable Equivalent Adjustment Segment Reporting Information, Net Interest Income after Provision for Credit Losses and Taxable Equivalent Adjustment Total noninterest income Noninterest Income Noninterest Expense Noninterest Expense Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income Tax Expense (Benefit) Including Fully Taxable Equivalent Adjustment Reversal Income Tax Expense (Benefit) Including Fully Taxable Equivalent Adjustment Reversal Income Tax Expense (Benefit) Including Fully Taxable Equivalent Adjustment Reversal Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Parent Schedule of Trading Securities and Other Trading Assets [Table] Trading Securities [Table] Repurchase Agreements [Member] Repurchase Agreements [Member] Equity Trading [Member] Equity Trading [Member] Investments represented by an agreement between the entity and another party for the sale securities at a date certain for a specified price. Equity Funds [Member] Equity Funds [Member] Schedule of Trading Securities and Other Trading Assets [Line Items] Schedule of Trading Securities and Other Trading Assets [Line Items] Trading Securities Pledged as Collateral Trading Securities Pledged as Collateral Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral Amount of Repurchase Agreements Secured by Trading Assets Amount of Repurchase Agreements Secured by Trading Assets Guarantor Obligations By Counterparty [Axis] Guarantor Obligations By Counterparty [Axis] Guarantor Obligations by Counterparty Guarantor Obligations, by Counterparty Bank [Domain] Guarantor Obligations, by Counterparty Bank [Domain] Guarantor Obligations, by Counterparty Bank [Domain] Non-Government Sponsored Agency [Member] Non-Government Sponsored Agency [Member] Non-Government Sponsored Agency [Member] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Standby Letters of Credit Standby Letters of Credit [Member] Visa Interest [Member] Visa Interest [Member] Visa Interest Tax Credit Sales [Member] Tax Credit Sales [Member] Guarantee, Expiry Range of Tax Credits Sold, Minimum Guarantee, Expiry Range of Outstanding Tax Credits Sold, Minimum Guarantee, Expiry Range of Outstanding Tax Credits Sold, Minimum Maximum potential amount obligation Guarantor Obligations, Maximum Exposure, Undiscounted Guarantee Period of Tax Credits Sold, Maximum Guarantee Period of Tax Credits Sold, Maximum Guarantee Period of Tax Credits Sold, Maximum Loss Contingency Accrual, at Carrying Value Loss Contingency Accrual Business Combination, Contingent Consideration, Liability Business Combination, Contingent Consideration, Liability Number Of Shares Sold To Selected Financial Institutions Number Of Shares Sold To Selected Financial Institutions Number of shares sold to selected financial institutions. Derivative Liability, Current Derivative Liability, Current Guarantee, Expiry Range of Tax Credits Sold, Maximum Guarantee, Expiry Range of Outstanding Tax Credits Sold, Maximum Guarantee, Expiry Range of Outstanding Tax Credits Sold, Minimum Assets and Liabilities Measured at Fair Value on a Recurring Basis [Abstract] Assets and Liabilities Measured at Fair Value on a Recurring Basis [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Not Designated as Hedging Instrument [Member] Derivative Financial Instruments, Assets Derivative Financial Instruments, Assets [Member] Estimate of Fair Value Measurement [Member] Collateralized Loan Obligations [Member] Collateralized Loan Obligations [Member] Investment in Federal Home Loan Bank Stock [Member] Investment in Federal Home Loan Bank Stock [Member] Commercial and Corporate Leveraged Loans [Member] Commercial and Corporate Leveraged Loans [Member] Commercial and Corporate Leveraged Loans [Member] Netting [Member] Fair Value, Concentration of Credit Risk, Master Netting Arrangements [Member] Trading Loans [Member] Trading Loans [Member] Trading Loans [Member] Land [Member] Land [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Trading Liabilities, Fair Value Disclosure Other Liabilities, Fair Value Disclosure Other Liabilities, Fair Value Disclosure Short-term Debt, Fair Value Short-term Debt, Fair Value Other Real Estate Owned [Member] Other Real Estate Owned [Member] Other Real Estate Owned LHFS Nonperforming Loans Sold Nonrecurring Nonperforming Loans Sold from LHFS Nonrecurring Nonperforming Loans Sold from LHFS Gain on Sale of Nonrecurring Nonperforming LHFS Gain on Sale of Nonrecurring Nonperforming LHFS Gain on Sale of Nonrecurring Nonperforming LHFS ALLL Impact for NPL Loans Transferred to Loans Held for Sale ALLL Impact for NPL Loans Transferred to Loans Held for Sale ALLL Impact for NPL Loans Transferred to Loans Held for Sale Gains (Losses) on Sales of Investment Real Estate Assets, Fair Value Disclosure Assets, Fair Value Disclosure Asset Impairment Charges Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Current Weighted Average FICO Score on Mortgages With Potential Concentration of Credit Risk Current Weighted Average FICO Score on Mortgages With Potential Concentration of Credit Risk Current Weighted Average FICO Score on Mortgages With Potential Concentration of Credit Risk Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Nonaccruing 90 Plus Days Past Due Financing Receivable Recorded Investment 90 Days Past Due Nonaccrual Status Recorded investment in financing receivables that are 90 or more days past due and on nonaccrual status as of the balance sheet date. Terminated or dedesignated hedges [Member] Terminated or dedesignated hedges [Member] Terminated or dedesignated hedges [Member] Interest Income [Member] Interest Income [Member] Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Residential Guaranteed [Member] Residential Mortgages - Guaranteed [Member] Residential Mortgages - Guaranteed FICO Score 700 and Above [Member] FICO Score 700 and Above [Member] FICO Score 700 and Above Federally Guaranteed Student Loans [Member] Federally Guaranteed Student Loans [Member] Federally Guaranteed Student Loans Loans and Leases Receivable, Gross Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Pension Plans, Defined Benefit Pension Plan [Member] Other Postretirement Benefit Plans, Defined Benefit Other Postretirement Benefit Plan [Member] Defined Benefit Plan, Service Cost Defined Benefit Plan, Service Cost Defined Benefit Plan, Interest Cost Defined Benefit Plan, Interest Cost Defined Benefit Plan, Expected Return on Plan Assets Defined Benefit Plan, Expected Return on Plan Assets Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Defined Benefit Plan, Amortization of Gains (Losses) Defined Benefit Plan, Amortization of Gains (Losses) Defined Benefit Plan, Net Periodic Benefit Cost Defined Benefit Plan, Net Periodic Benefit Cost Other Postretirement Benefit Expense Other Postretirement Benefit Expense Business Segment Reporting Segment Reporting Disclosure [Text Block] Changes in Carrying Amount of Goodwill by Reportable Segment [Abstract] Changes in Carrying Amount of Goodwill by Reportable Segment [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill Goodwill, Transfers Goodwill, Transfers Goodwill, Written off Related to Sale of Business Unit Goodwill, Written off Related to Sale of Business Unit Goodwill Repurchase Requests [Abstract] Repurchase Requests [Abstract] US Government Sponsored Agency [Member] US Government Sponsored Agency [Member] US Government Sponsored Agency [Member] Unpaid Principal Balance of Repurchase Request Loans Resolved Pending Repurchase Requests from Non-Agency Investors Pending Repurchase Requests from Non-Agency Investors Pending Repurchase Requests from Non-Agency Investors. Repurchase Requests Received from Non-Agency Investors Repurchase Requests Received from Non-Agency Investors Repurchase Requests Received from Non-Agency Investors. Investments, Unrealized Loss Position [Table] Investments, Unrealized Loss Position [Table] Investments, Unrealized Loss Position [Table] Temporarily Impaired Securities Temporarily Impaired Securities [Member] Temporarily Impaired Securities Other Than Temporarily Impaired Securities [Member] Investments, Unrealized Loss Position [Line Items] Investments, Unrealized Loss Position [Line Items] Investments, Unrealized Loss Position [Line Items] Less than twelve months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Less than twelve months, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss Twelve months or longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Twelve months or longer, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss Total, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Total, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss Statement of Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss), Net of Tax, Attributable to Parent Pass Pass [Member] Criticized Accruing Criticized Accruing [Member] Criticized Accruing FICO Score Between 620 and 699 FICO Score Between 620 and 699 [Member] FICO Score Between 620 and 699 FICO Score Below 620 FICO Score Below 620 [Member] FICO Score Below 620 Financing Receivable, Recorded Investment, Nonaccrual Status Trading Securities [Abstract] Mortgage Production Income [Member] Mortgage Production Income [Member] Mortgage Production Income Concentration of Credit or Market Risk [Axis] Concentration of Credit or Market Risk [Axis] Fair Value, Concentration of Risk, Disclosure Items [Domain] Fair Value, Concentration of Risk, Disclosure Items [Domain] Income recognized upon the sale of loans Securities Portfolio Composition Available-for-sale Securities [Table Text Block] Investment Income [Table Text Block] Investment Income [Table Text Block] Amortized Cost and Fair Value of Investments in Debt Securities by Estimated Average Life Investments Classified by Contractual Maturity Date [Table Text Block] Securities in a Continuous Unrealized Loss Position Schedule of Temporary Impairment Losses, Investments [Table Text Block] Performing Financial Instruments [Member] Performing Financial Instruments [Member] Repurchased mortgage loans, carrying value Repurchased mortgage loans, carrying value The carrying value of outstanding repurchased mortgage loans, exclusive of any allowance for loan losses. Impaired Financing Receivable, Interest Income, Cash Basis Method Impaired Financing Receivable, Interest Income, Cash Basis Method Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Financing Receivable, Restructured During Period, Number Of Contracts Financing Receivable, Restructured During Period, Number Of Contracts Number of financing receivables restructured as a TDR during the period Financing Receivable, Amount Restructured During Period, Principal Forgiveness Granted Financing Receivable, Amount Restructured During Period, Principal Forgiveness Granted Amount of Financing Receivables Restructured as a TDR during the period, granting principal forgiveness and any other possible concessions Financing Receivable, Amount Restructured During Period, Rate Modifications Granted Financing Receivable, Amount Restructured During Period, Rate Modifications Granted Amount of Financing Receivables Restructured as a TDR during the period, granting rate modifications and any other possible concessions that were not principal forgiveness Financing Receivable, Amount Restructured During Period, Term Extension and/or Other Concessions Granted Financing Receivable, Amount Restructured During Period, Term Extension andor Other Concessions Granted Amount of Financing Receivables Restructured as a TDR during the period, granting term extensions and/or other concessions that were not principal forgiveness or rate modifications Financing Receivable, Amount Restructured During Period Financing Receivable, Amount Restructured During Period Amount of Financing Receivables Restructured as a TDR during the period Income Statement [Abstract] Interest Income Interest and Dividend Income, Operating [Abstract] Interest and fees on loans Interest and Fee Income, Loans and Leases Held-in-portfolio Interest and fees on loans held for sale Interest and Fee Income, Loans and Leases Held-for-sale Interest and Dividend Income, Securities, Available-for-sale Trading account interest and other Interest and Dividend Income, Securities, Operating, Trading or Measured at Fair Value Total interest income Interest and Dividend Income, Operating Interest Expense Interest Expense [Abstract] Interest on deposits Interest Expense, Deposits Interest Expense, Long-term Debt Interest Expense, Long-term Debt Interest on other borrowings Interest Expense, Other Short-term Borrowings Total interest expense Interest Expense Net, interest income Interest Income (Expense), after Provision for Loan Loss Interest Income (Expense), after Provision for Loan Loss Noninterest Income Noninterest Income [Abstract] Service charges on deposit accounts Fees and Commissions, Depositor Accounts Fees and Commissions, Other Fees and Commissions, Other Fees and Commissions, Credit and Debit Cards Fees and Commissions, Credit and Debit Cards Investment Banking Revenue Investment Banking Revenue Trading Gain (Loss) Trading Gain (Loss) Fees and Commissions, Fiduciary and Trust Activities Fees and Commissions, Fiduciary and Trust Activities Investment Advisory, Management and Administrative Fees Investment Advisory, Management and Administrative Fees Fees and Commissions, Mortgage Banking Fees and Commissions, Mortgage Banking Servicing Fees, Net Gain (Loss) on Disposition of Business Gain (Loss) on Sale of Securities, Net Noninterest Income, Other Operating Income Noninterest Income, Other Operating Income Noninterest Expense Noninterest Expense [Abstract] Employee compensation Salaries, Wages and Officers' Compensation Other Labor-related Expenses Other Labor-related Expenses Outside processing and software Information Technology and Data Processing Net occupancy expense Occupancy, Net Equipment Expense Equipment Expense Federal Deposit Insurance Corporation Premium Expense Federal Deposit Insurance Corporation Premium Expense Marketing and Advertising Expense Marketing and Advertising Expense Credit and collection services Credit and collection services Credit and collection related expenses Professional Fees Professional Fees Operating losses Operating Losses Operating losses include criminal loan fraud, deposit/check/ATM fraud, errors, and related litigation settlements and damage awards. Other Noninterest Expense Noninterest Expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Net Income (Loss) Attributable to Parent Net Income (Loss) Available to Common Stockholders, Basic Earnings Per Share, Diluted Common Stock, Dividends, Per Share, Declared Common Stock, Dividends, Per Share, Declared Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Basic Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Securities Available for Sale Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Stock-based compensation expense: Share-based Compensation [Abstract] Stock options Stock or Unit Option Plan Expense Restricted Stock Expense Restricted Stock or Unit Expense Phantom stock expense Performance Stock Units The non-cash compensation expense that accounts for the value of phantom stock awards distributed to employees as compensation. Restricted stock units Restricted Stock Unit Expense The non-cash expense that represents the cost of restricted units distributed to employees as compensation. Total stock-based compensation expense Share-based Compensation Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Industry of Counterparty, Type [Axis] Industry of Counterparty, Type [Axis] Industry of Counterparty [Domain] Industry of Counterparty [Domain] Legal Entity of Counterparty, Type [Axis] Legal Entity of Counterparty, Type [Axis] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Billing Status, Type [Axis] Billing Status, Type [Axis] Receivables Billing Status [Domain] Receivables Billing Status [Domain] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Concentration Risk, Credit Risk, Loan Products Concentration Risk Disclosure [Text Block] Composition of Loan Portfolio Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] LHFI by Credit Quality Indicator Financing Receivable Credit Quality Indicators [Table Text Block] Payment Status for the LHFI Portfolio Past Due Financing Receivables [Table Text Block] LHFI Considered Impaired Impaired Financing Receivables [Table Text Block] Nonperforming Assets Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Troubled Debt Restructurings on Financing Receivables [Table Text Block] Troubled Debt Restructurings on Financing Receivables [Table Text Block] TroubledDebtRestructuingDefault [Table Text Block] TroubledDebtRestructuingReDefault [Table Text Block] TroubledDebtRestructuingReDefaultTableTextBlock Amortized Cost Available-for-sale Securities, Amortized Cost Basis Unrealized Gains Available-for-sale Securities, Gross Unrealized Gain Unrealized Losses Available-for-sale Securities, Gross Unrealized Loss Beginning balance Ending balance Mortgage Servicing Income [Member] Mortgage Servicing Income [Member] Mortgage Servicing Income Aggregate Unpaid Principal Balance Under Fair Value Option Aggregate Unpaid Principal Balance Under Fair Value Option [Member] Aggregate Unpaid Principal Balance Under Fair Value Option Long-Term Debt [Domain] Long-Term Debt [Domain] Long-Term Debt Obligations, Fair Value Disclosure Obligations, Fair Value Disclosure Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables Fair Value, Option, Changes in Fair Value, Gain (Loss) Fair Value, Option, Changes in Fair Value, Gain (Loss) Nonaccrual loans Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status, Aggregated Difference Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status, Aggregated Difference Aggregate Unpaid Principal Balance Under the Fair Value Option Aggregate Unpaid Principal Balance Under the Fair Value Option Aggregate Unpaid Principal Balance Under the Fair Value Option Short-term Debt, Fair Value Fair Value Over (Under) Unpaid Principal Fair Value Over (Under) Unpaid Principal Fair Value, Option, Aggregate Differences, Long-term Debt Instruments Fair Value, Option, Aggregate Differences, Long-term Debt Instruments Level 3 Significant Unobservable Input Assumptions (parenthetical) [Abstract] Level 3 Significant Unobservable Input Assumptions (parenthetical) [Abstract] Fair Value Inputs, Liabilities, Quantitative Information [Table] Fair Value Inputs, Liabilities, Quantitative Information [Table] Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Netted counterparty balance [Member] Netted counterparty balance [Member] Netted counterparty balance Derivative liability positions containing provisions conditioned on downgrades [Member] Derivative liability positions containing provisions conditioned on downgrades [Member] Derivative liability positions containing provisions conditioned on downgrades [Member] Netted counterparty balance gains [Member] Netted counterparty balance gains [Member] Netted counterparty balance gains [Member] Additional Termination Event [Member] Additional Termination Event Credit Support Annex Credit Support Annex [Member] Credit Support Annex Credit Default Swap, Selling Protection [Member] Credit Default Swap, Selling Protection [Member] Financial Guarantee [Member] Financial Guarantee [Member] Fair Value, Concentration of Risk, Derivative Instruments, Assets Fair Value, Concentration of Risk, Derivative Instruments, Assets Derivative Asset, Fair Value of Collateral Derivative Asset, Fair Value of Collateral Derivative Credit Risk Valuation Adjustment, Derivative Assets Derivative Credit Risk Valuation Adjustment, Derivative Assets Collateral Already Posted, Aggregate Fair Value Collateral Already Posted, Aggregate Fair Value Additional Collateral, Aggregate Fair Value Additional Collateral, Aggregate Fair Value Maximum Term of Credit Risk Derivatives Maximum Term of Credit Risk Derivatives Credit Derivative, Maximum Exposure, Undiscounted Credit Derivative, Maximum Exposure, Undiscounted Credit Risk Derivatives, at Fair Value, Net Credit Risk Derivatives, at Fair Value, Net Derivative, Lower Remaining Maturity Range Derivative, Lower Remaining Maturity Range Derivative, Higher Remaining Maturity Range Derivative, Higher Remaining Maturity Range Weighted Average of Maturities of Cash Flow Hedges Derivative, Average Remaining Maturity Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Fair Value, Assets and Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, By Secondary Group Type [Axis] Fair Value, Assets and Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, By Secondary Group Type [Axis] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Secondary Group Type Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Secondary Group Types [Domain] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Secondary Group Types [Domain] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Secondary Group Types [Domain] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Type [Axis] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Type [Axis] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Type Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Types [Domain] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Types [Domain] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, by Major Types [Domain] Other Income [Member] Other Income [Member] Trading Revenue [Member] Trading Revenue [Member] Fair Value, Option, Changes in Fair Value, Gain (Loss) Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Available-for-sale Securities, Gross Realized Losses Gain (Loss) on Sale of Securities, Net Equity futures [Member] Equity futures [Member] Equity futures [Member] Reserve For Mortgage Loan Repurchase Losses Reserve For Mortgage Loan Repurchase Losses Liability for loss contingency of mortgage loans repurchased. Mortgage Repurchase Reserve, Provision for Mortgage Loan Repurchase Losses Mortgage Repurchase Reserve, Provision for Mortgage Loan Repurchase Losses Mortgage Repurchase Reserve, Provision for Mortgage Loan Repurchase Losses Charge Offs For Mortgage Loan Repurchase Losses Charge-offs For Mortgage Loan Repurchase Losses Charge-offs for mortgage loan repurchase losses. Document Document and Entity Information [Abstract] Document - Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Netting of Financial Instruments - Derivatives (parenthetical) [Abstract] Netting of Financial Instruments - Derivatives (parenthetical) [Abstract] Derivative [Table] Derivative [Table] Trading Liabilities [Member] Trading Liabilities [Member] Derivative [Line Items] Derivative [Line Items] Derivative Asset, Collateral, Obligation to Return Cash, Offset Derivative Asset, Fair Value of Collateral Derivative Liability, Collateral, Right to Reclaim Cash, Offset Portfolio Balances and Delinquency Balances Based on 90 Days or More Past Due and Net Charge-offs Related to Managed Portfolio Loans Quantitative Information about Transferred Financial Assets that have been Derecognized and Other Financial Assets Managed Together [Table Text Block] Mortgages With Mortgage Insurance or With LTV Ratio Less Than or Equal to 80% [Member] Mortgages With Mortgage Insurance or With LTV Ratio Less Than or Equal to 80% [Member] Mortgages With Mortgage Insurance or With Combined Original LTV Ratio Less Than or Equal to 80% Mortgages With No Mortgage Insurance and With LTV Ratio Greater Than 80% [Member] Mortgages With No Mortgage Insurance and With LTV Ratio Greater Than 80% [Member] Mortgages With No Mortgage Insurance and With Combined Original LTV Ratio Greater Than 80% [Member] Mortgages With LTV Ratio Greater Than 80% and/or second liens [Member] Mortgages With LTV Ratio Greater Than 80% and/or second liens [Member] Mortgages With Combined Original LTV Ratio Greater Than 80% and/or second liens [Member] Fair Value, Concentration of Risk, Loans Receivable Fair Value, Concentration of Risk, Loans Receivable Statement [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Other Intangible Assets [Member] Other Intangible Assets [Member] Servicing Asset Servicing Asset Amortization Origination of Mortgage Servicing Rights (MSRs) Servicing Asset at Fair Value, Additions Servicing Assets at Fair Value, Purchased Servicing Assets at Fair Value, Purchased The value of new servicing assets, subsequently measured at fair value, acquired or created during the period through purchases or from transfers of financial assets. Due to changes in inputs or assumptions Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Servicing Asset at Fair Value, Other Changes in Fair Value Servicing Asset at Fair Value, Other Changes in Fair Value Servicing Asset at Fair Value, Disposals Servicing Asset at Fair Value, Disposals Intangible Assets, Written off Related to Sale of Business Unit Intangible Assets, Written off Related to Sale of Business Unit Amount of write-off of assets, excluding financial assets and goodwill, lacking physical substance and having a projected finite and indefinite period of benefits associated with the sale of all or a portion of a reporting unit Principal Amount Outstanding of Loans Serviced For Third Parties Principal Amount Outstanding of Loans Serviced For Third Parties Principal Amount Outstanding of Loans Serviced for Third Parties Unpaid Principal Balance of Outstanding Underlying MSRs Purchased Unpaid Principal Balance of Outstanding Underlying MSRs Purchased Unpaid Principal Balance of Outstanding Underlying Mortgage Servicing Rights Purchased Principal Amount Sold on Loans Serviced for Third Parties Principal Amount Sold on Loans Serviced for Third Parties Principal Amount Sold on Loans Serviced for Third Parties Fair Value, Level 3 Input Assumptions [Table] Fair Value, Level 3 Input Assumptions [Table] Fair Value, Level 3 Input Assumptions [Table] Market Approach Valuation Technique [Member] Market Approach Valuation Technique [Member] Cost Approach Valuation Technique [Member] Cost Approach Valuation Technique [Member] Income Approach Valuation Technique [Member] Income Approach Valuation Technique [Member] Unobservable Input [Axis] Unobservable Input [Axis] Unobservable Input [Axis] Unobservable Input [Domain] Unobservable Input [Domain] [Domain] for Unobservable Input [Axis] Loan Production Volume [Member] Loan Production Volume [Member] Loan Production Volume [Member] Weighted Average [Member] Weighted Average [Member] level 3 fair value assumptions [Line Items] level 3 fair value assumptions [Line Items] level 3 fair value assumptions [Line Items] Fair Value Inputs, indicative pricing based on overcollateralization ratio Fair Value Inputs, indicative pricing based on overcollateralization ratio Fair Value Inputs, Indicative pricing based on overcollateralization ratio Other Assets, Fair Value Disclosure Derivative, Fair Value, Net Fair Value Inputs, Estimated Collateral Losses Fair Value Inputs, Estimated Collateral Losses Fair Value Inputs, Estimated Collateral Losses Fair Value Inputs, Indicative Pricing Fair Value Inputs, Indicative Pricing Fair Value Inputs, Indicative Pricing Fair Value Inputs, Option Adjusted Spread Fair Value Inputs, Option Adjusted Spread Fair Value Inputs, Option Adjusted Spread Fair Value Inputs, Prepayment Rate Fair Value Inputs, Prepayment Rate Fair Value Inputs, Discount Rate Fair Value Inputs, Discount Rate Fair Value Inputs, Probability of Default Fair Value Inputs, Probability of Default Fair Value Inputs, Pull Through Rate Fair Value Inputs, Pull Through Rate Fair Value Inputs, Pull Through Rate Fair Value Inputs, Msr Value Fair Value Inputs, Msr Value Fair Value Inputs, Msr Value fair value inputs, loan production volume fair value inputs, loan production volume fair value inputs, loan production volume Distribution of Maturities: Amortized Cost, 1 Year or Less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Distribution of Maturities: Amortized Cost, 1-5 Years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Distribution of Maturities: Amortized Cost, 5-10 Years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Distribution of Maturities: Amortized Cost, After 10 Years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Distribution of Maturities: Amortized Cost, Total Available-for-sale Debt Securities, Amortized Cost Basis Distribution of Maturities: Fair Value, 1 Year or Less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Distribution of Maturities: Fair Value, 1-5 Years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Distribution of Maturities: Fair Value, 5-10 Years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Distribution of Maturities: Fair Value, After 10 Years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Distribution of Maturities: Fair Value, Total Available-for-sale Securities, Debt Securities Available For Sale Securities Debt Maturities, Yield, One Year Or Less Available For Sale Securities Debt Maturities, Yield, One Year Or Less This item represents the yield percent of debt securities which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available For Sale Securities Debt Maturities, Yield, After One Through Five Years Available For Sale Securities Debt Maturities, Yield, After One Through Five Years This item represents the yield percent of debt securities which are expected to mature after one year through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available For Sale Securities Debt Maturities, Yield, After Five Through Ten Years Available For Sale Securities Debt Maturities, Yield, After Five Through Ten Years This item represents the yield percent of debt securities which are expected to mature after five years through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available For Sale Securities Debt Maturities, Yield, After Ten Years Available For Sale Securities Debt Maturities, Yield, After Ten Years This item represents the yield percent of debt securities which are expected to mature after ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available For Sale Securities Debt Maturities, Yield Available For Sale Securities Debt Maturities, Yield This item represents the yield percent of debt securities which are categorized neither as held-to-maturity nor trading securities. Cash flows on interests held Allowance for Credit Losses Allowance for Credit Losses [Text Block] Derivatives, by Derivative Instrument Contract [Axis] Derivatives, by Derivative Instrument Contract [Axis] Derivatives, by Derivative Instrument Contract Derivatives, by Derivative Instrument Contract [Domain] Derivatives, by Derivative Instrument Contract [Domain] Derivatives, by Derivative Instrument Contract [Domain] Trading Account Profits And Commissions [Member] Trading Account Profits And Commissions [Member] Trading Account Profits and Commissions Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Fair Value Hedge Ineffectiveness, Net Gain (Loss) on Fair Value Hedge Ineffectiveness, Net Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Accounting Policies Recently Adopted and Pending Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] schedule of reclassifications from AOCI [Table Text Block] schedule of reclassifications from AOCI [Table Text Block] [Table Text Block] for schedule of reclassifications from AOCI [Table] Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value, Measurement Inputs, Disclosure [Text Block] Fair Value Option Elected, Difference Between the Aggregate Fair Value and the Aggregate Unpaid Principal Balance Fair Value, Option, Quantitative Disclosures [Table Text Block] Change in Fair Value of Financial Instruments for which the FVO has been Elected Fair Value, Option, Qualitative Disclosures Related to Election [Table Text Block] Fair Value Level 3 Significant Unobservable Input Assumptions [Table Text Block] Fair Value Level 3 Significant Unobservable Input Assumptions [Table Text Block] Fair Value Level 3 Significant Unobservable Input Assumptions [Table Text Block] Reconciliation of the Beginning and Ending Balances for Fair Valued Assets and Liabilities Measured on a Recurring Basis Using Significant Unobservable Inputs Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] Change in Carrying Value of Assets Measured at Fair Value on a Non-Recurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Carrying Amounts and Fair Values of the Company's Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Impaired Financing Receivable Impaired Financing Receivable [Axis] Impaired Financing Receivable Impaired Financing Receivable [Domain] Impaired Financing Receivable [Domain] Impaired Financing Receivable [Domain] Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired Financing Receivable, Unpaid Principal Balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Impaired Financing Receivable, Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, Option, Quantitative Disclosures, by Eligible Item or Group [Axis] Estimated Fair Value of Loan Portfolio's Net Carrying Value, Percentage Estimated Fair Value of Loan Portfolio's Net Carrying Value, Percentage Percentage of Carrying Value Allowance for Loan and Lease Losses, Write-offs Fair Value Inputs, Discount Rate, Variable Spread Unfunded loan commitments and letters of credit Unfunded Commercial Loan Commitments and Letters of Credit Unfunded Commercial Loan Commitments and Letters of Credit Allowance for unfunded loan commitments and letters of credit Allowance for Commercial Unfunded Loan Commitments and Letters of Credit Allowance for commercial unfunded loan commitments and letters of credit Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities Amortization of Actuarial Loss [Member] Amortization of Actuarial Loss [Member] Pension or Postretirement Benefit Plans Amortization of Actuarial Loss Amortization of Prior Service Credit [Member] Amortization of Prior Service Credit [Member] Pension or Postretirement Benefit Plans Amortization of Prior Service Credit Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets And Liabilities, Net [Member] Other Assets And Liabilities, Net [Member] Other Assets and Liabilities, Net Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Available-for-sale Securities [Abstract] Available-for-sale Securities Pledged as Collateral Available-for-sale Securities Pledged as Collateral Schedule of Resale Agreements [Table Text Block] Schedule of Resale Agreements [Table Text Block] Securities sold under agreements to repurchase remaining contractual maturity [Table Text Block] Securities sold under agreements to repurchase remaining contractual maturity [Table Text Block] Securities sold under agreements to repurchase remaining contractual maturity [Table Text Block] Netting of Financial Instruments - Repurchase Agreements [Table Text Block] Netting of Financial Instruments - Repurchase Agreements [Table Text Block] Netting of Financial Instruments - Repurchase Agreements [Table Text Block] Judgement Type [Axis] Judgement Type [Axis] Judgement Type [Axis] Judgement Type [Domain] Judgement Type [Domain] [Domain] for Judgement Type [Axis] Total Cash Payment for Settlement [Domain] Total Cash Payment for Settlement [Member] Total Cash Payment for Settlement [Member] Consumer Remediation [Member] Consumer Remediation [Member] STM's estimated commitment under mortgage modification settlement agreement Cash payment for litigation [Member] Cash payment to US Treasury [Member] Cash payment to US Treasury [Member] Housing counseling for homeowners [Member] Housing counseling for homeowners [Member] Housing counseling for homeowners [Member] Civil money penalty [Member] Civil money penalty [Member] Civil money penalty [Member] Consumer relief obligation [Member] Consumer relief obligation [Member] Consumer relief obligation [Member] Mortgage Modification Investigation and HAMP [Member] Mortgage Modification Settlement Agreement [Member] Mortgage Modification Settlement Agreement [Member] Loss Contingencies by Nature of Contingency Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Consent Order Foreclosure Actions [Member] Consent Order [Member] Consent Order Potential Mortgage Servicing Settlement and Claims [Member] National Mortgage Servicing Settlement and HUD [Member] National Mortgage Servicing Settlement and HUD Restitution to Fannie Mae and Freddie Mac [Member] Restitution to Fannie Mae and Freddie Mac [Member] Restitution to Fannie Mae and Freddie Mac [Member] Aggregate range of reasonably possible losses on legal matters in excess of the accrued liability Loss Contingency, Range of Possible Loss, Portion Not Accrued Loss Contingency, Damages Awarded, Value Loss Contingency, Damages Awarded, Value Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Indirect Auto Loans [Member] Indirect Auto Loans [Member] Indirect Auto Loans [Member] Statement, Business Segments Transferred to [Axis] Statement, Business Segments Transferred to [Axis] Statement, Business Segments Transferred to [Axis] Statement, Business Segments Transferred to [Domain] Statement, Business Segments Transferred to [Domain] Statement, Business Segments Transferred to [Domain] Statement, Business Reporting Unit [Axis] Statement, Business Reporting Unit [Axis] Statement, Business Reporting Unit [Axis] Statement, Business Reporting Unit [Domain] Statement, Business Reporting Unit [Domain] Statement, Business Reporting Unit [Domain] Servicing Asset at Amortized Cost Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax Netting of Financial Instruments - Derivatives [Abstract] Netting of Financial Instruments - Derivatives [Abstract] Derivatives Subject to Master Netting Arrangement or Similar Arrangement [Member] Derivatives Subject to Master Netting Arrangement or Similar Arrangement [Member] Derivatives Subject to Master Netting Arrangement or Similar Arrangement [Member] Derivatives Not Subject to Master Netting Arrangement or Similar Arrangement [Member] [Member] Derivatives Not Subject to Master Netting Arrangement or Similar Arrangement [Member] [Member] Derivatives Not Subject to Master Netting Arrangement or Similar Arrangement [Member] [Member] Exchange Traded [Member] Exchange Traded [Member] Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Asset, Fair Value, Amount Offset Against Collateral Collateral Held by The Company Against Derivative Asset Positions Derivative, Collateral, Obligation to Return Securities Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative Asset, Fair Value, Amount Not Offset Against Collateral Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative, Collateral, Right to Reclaim Securities Derivative, Collateral, Right to Reclaim Securities Derivative Liability, Fair Value, Amount Not Offset Against Collateral Derivative Liability, Fair Value, Amount Not Offset Against Collateral