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Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List Not Disclosed Flag Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List Not Disclosed Flag Total Total Amounts of Line Items Presented in the Consolidated Statement of Income Total Amounts of Line Items Presented in the Consolidated Statement of Income Due within one year Held-To-Maturity Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Held-To-Maturity Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Provision for losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Adjusted Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Adjusted Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Allowance for Losses Fair Value, Measurement with Unobservable Inputs 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Cover [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Outstanding, Weighted - average rate Short-term debt, weighted average rate Short-Term Debt, Weighted Average Interest Rate, at Point in Time Charge-offs Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Excess capital Banking Regulation, Total Risk-Based Capital, Excess, Actual Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Prior Financing Receivable, Originated Five or More Years before Latest Fiscal Year [Abstract] Financing Receivable, Originated Five or More Years before Latest Fiscal Year Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Proceeds from preferred stock issuance, net of stock issuance costs Proceeds from Issuance of Preferred Stock and Preference Stock Other liabilities Increase (Decrease) in Other Operating Liabilities Acceptable Pass [Member] Schedule of Composition of Loan Balances Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] 5.700% Non-Cumulative Preferred Stock, Series D Series D Series D Preferred Stock [Member] Total due after one year Debt Instrument, Redemption, After One Year [Member] Debt Instrument, Redemption, After One Year Cumulative amount of fair value hedging adjustments, hedged assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] General and administrative General and Administrative Expense Notes payable Total Long-term Debt, Net of Hedging Adjustments Long-term Debt, Net of Hedging Adjustments Schedule of Available-for-sale and Trading Securities [Table] Schedule of Available-for-sale and Trading Securities [Table] Schedule of Available-for-sale and Trading Securities [Table] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Reconciliation to net income: Segment Reporting, Other Disclosure [Abstract] Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Corporate AgFinance Corporate AgFinance Agricultural Finance - Corporate AgFinance loans Agriculture Finance, Corporate AgFinance Segment [Member] Agriculture Finance, Corporate AgFinance Segment Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Long-Term Standby Purchase Commitments Long-Term Standby Purchase Commitments [Member] Long-Term Standby Purchase Commitments [Member] INCOME TAXES Income Tax Disclosure [Text Block] Other Other Noncash Income (Expense) Schedule of Net Income/(Expense) Recognized Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Financial derivatives, net payable position Securities Purchased under Agreements to Resell Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Entity Filer Category Entity Filer Category Proceeds from issuance of debt securities of consolidated trusts Proceeds from Issuance of Trust Preferred Securities Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Average Outstanding, Weighted - average rate (as a percent) Debt Instrument, Interest Rate During Period Gains/(losses) on financial derivatives Gains/(losses) on financial derivatives Gain (Loss) on Derivative Instruments, Net, Pretax Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] No hedge designation Not Designated as Hedging Instrument [Member] Year Four Financing Receivable, Originated Three Years before Latest Fiscal Year [Abstract] Financing Receivable, Originated Three Years before Latest Fiscal Year Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Segment core earnings Segment Core Earnings Segment core earnings - net income (loss) available to common shareholders, basic, adjusted for reconciling items related to segment reporting 2027 Long-Term Debt With Interest Rate Reset, Maturity, Year One Long-Term Debt With Interest Rate Reset, Maturity, Year One Entity Address, Address Line Two Entity Address, Address Line Two Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Purchases of defaulted loans Payment for Acquisition, Loan and Lease, Other, Held-for-Investment Weighted-average yield Available-for-sale Securities, Debt Maturities, Weighted-Average Yield Available-for-sale Securities, Debt Maturities, Weighted-Average Yield Pay fixed non-callable Interest Rate Swap, Pay Fixed Non-Callable [Member] Interest Rate Swap, Pay Fixed Non-Callable [Member] Financial derivatives, at fair value Fair value, liability Financial derivatives Derivative Liability Loans acquired through non-cash transactions Noncash Or Part Noncash Acquisition, Loans Acquired Noncash Or Part Noncash Acquisition, Loans Acquired Entity Address, Address Line One Entity Address, Address Line One Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Income tax expense Income Tax Expense (Benefit) 6.500% Non-Cumulative Preferred Stock, Series H Series H Series H Preferred Stock [Member] Fair value hedges: Fair Value Hedging [Member] Uncleared Swaps Uncleared Swaps [Member] Uncleared Swaps Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Year one Due Year One [Member] Due Year One Principles of Consolidation Consolidation, Policy [Policy Text Block] Charge-offs Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Liabilities: Offsetting Derivative Liabilities [Abstract] Consolidated VIE Variable Interest Entity, Primary Beneficiary [Member] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Due after ten years Held-To-Maturity Securities, Debt Maturities, After Ten Years, Weighted-Average Yield Held-To-Maturity Securities, Debt Maturities, After Ten Years, Weighted-Average Yield Discounted cash flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Reconciling Adjustments Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Total Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Uncleared derivatives Uncleared Derivatives [Member] Uncleared Derivatives Gross Amount Recognized Derivative Asset, Subject to Master Netting Arrangement, before Offset Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]