Loans And Leases Receivable, Unpaid Principal Balance Loans and Leases Receivable, before Fees, Gross Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Mortgage Loans Held for Portfolio Mortgage Loans Held for Portfolio [Table Text Block] Tabular disclosure of mortgage loans held for portfolio (can include unpaid principal balance, premiums, discounts, deferred loan costs and hedging adjustments). Statistical Measurement [Domain] Statistical Measurement [Domain] Debt and Equity Securities, FV-NI [Line Items] Debt and Equity Securities, FV-NI [Line Items] Schedule of Short-term Debt [Table Text Block] Schedule of Short-Term Debt [Table Text Block] Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Adjustable Interest Rate Adjustable Interest Rate [Member] Adjustable Interest Rate Derivative Item Hedged [Axis] Derivative Item Hedged [Axis] Information by type of derivative item hedged. Thereafter Federal Home Loan Bank, Advances, Maturities Summary, after Rolling Year Five Derivative Asset, Collateral, Obligation to Return Cash, Offset Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Discount notes Discount notes Short-Term Debt, Fair Value Related Party Transaction [Axis] Related Party Transaction [Axis] Total par value, Weighted Average Interest Rate Long-Term Debt, Weighted Average Interest Rate, at Point in Time Real Estate [Domain] Real Estate [Domain] Entity File Number Entity File Number Interest Rate Swap [Member] Interest Rate Swap [Member] NET INCOME Net income Net Income (Loss) Attributable to Parent, Net of Federal Home Loan Bank Assessments Fair value hedging adjustments Fair Value Hedging Adjustments, Basis Adjustments From Terminated or Ineffective Hedges The net gain (loss) recognized in earnings for the cumulative period of the debt obligation due to the ineffectiveness of fair value hedges. Athene Annuity and Life Company Athene Annuity and Life Company [Member] Athene Annuity and Life Company New Accounting Pronouncements, Policy New Accounting Pronouncements, Policy [Policy Text Block] Mandatorily redeemable capital stock Mandatorily redeemable capital stock Mandatorily redeemable capital stock Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Retained earnings Retained Earnings (Accumulated Deficit) [Abstract] Non-interest-bearing Noninterest-Bearing Deposit Liabilities, Domestic Mortgage Loans, Percent Loans and Leases Receivable, Gross, Consumer, Mortgage, Percent The gross carrying amount of mortgage loans to individuals. This item excludes subordinated loans such as home equity lines of credit expressed as a percent. Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Measurement Basis [Axis] Measurement Basis [Axis] Activities with Stockholders [Text Block] Related Party Transactions Disclosure [Text Block] Document Information, Document [Axis] Document Information, Document [Axis] Liabilities Liabilities, Fair Value Disclosure [Abstract] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Federal Home Loan Bank, Leverage Capital, Required Federal Home Loan Bank, Leverage Capital, Required Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Fair Value, Option, Changes in Fair Value, Gain (Loss) Fair Value, Option, Changes in Fair Value, Gain (Loss) Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Derivative Liability, Collateral, Right to Reclaim Cash, Offset Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Increase (Decrease) in Accrued Interest Receivable, Net Increase (Decrease) in Accrued Interest Receivable, Net Deposits Deposits, Fair Value Disclosure Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Increase (Decrease) in Other Operating Assets Increase (Decrease) in Other Operating Assets Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Activities with Other FHLBanks [Text Block] Transactions with other FHLBanks [Text Block] Transactions with other FHLBanks Trading securities (includes $1,515 and $1,390 pledged as collateral that may be repledged) Debt Securities, Trading, and Equity Securities, FV-NI Originated Payments for FHLBank Advance, Investing Activities Cash dividends on capital stock Dividends, Common Stock, Cash TOTAL CAPITAL Beginning Balance Ending Balance Equity, Attributable to Parent Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Hedging Designation [Domain] Hedging Designation [Domain] Financing Receivable, Accrued Interest, after Allowance for Credit Loss Financing Receivable, Accrued Interest, after Allowance for Credit Loss Proceeds from issuance of capital stock (shares) Stock Issued During Period, Shares, New Issues TOTAL LIABILITIES AND CAPITAL Liabilities and Equity Fair Value, Recurring [Member] Fair Value, Recurring [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Federal funds sold Federal Funds Sold, Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements. Federal Home Loan Bank of Chicago Federal Home Loan Bank of Chicago [Member] Available-for-sale Securities [Member] Available-for-Sale Securities [Member] Cash and due from banks at the beginning of the period cash and due from banks at the end of the period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Federal funds sold Interest Income, Federal Funds Sold Federal Home Loan Bank, Risk-Based Capital, Actual Federal Home Loan Bank, Risk-Based Capital, Actual Hedged Liability, Active Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Active Fair Value Hedge, Cumulative Increase (Decrease) Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk, active as of the balance sheet date. Accounting Policies [Abstract] Accounting Policies [Abstract] Debt Securities, Available-for-sale, Unrealized Loss Position Debt Securities, Available-for-Sale, Unrealized Loss Position Concentration Risk Type [Domain] Concentration Risk Type [Domain] Forward Contracts [Member] Forward Contracts [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment Proceeds from Sale, Debt Security, Trading, and Equity Security, FV-NI, Held-for-Investment Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] U.S. obligations [Member] US Government Agencies Debt Securities [Member] US Government Agencies Debt Securities [Member] Mortgages [Member] Mortgage Receivable [Member] Mortgage Receivable [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] LIABILITIES Liabilities [Abstract] Interest-bearing deposits Interest Income, Deposits with Financial Institutions Net Shares Reclassified to Mandatorily Redeemable Capital Stock, Shares Net Shares Reclassified to Mandatorily Redeemable Capital Stock, Shares Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Federal Home Loan Bank of Boston [Member] Federal Home Loan Bank of Boston [Member] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Offsetting Assets and Liabilities [Line Items] Offsetting Assets and Liabilities [Line Items] [Line Items] for Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Schedule of Short-term and Long-term Debt [Table] Schedule of Short-term and Long-term Debt [Table] A table or schedule providing information pertaining to long-term and short-term debt instruments or arrangements, including identification, terms, features and other information necessary to a fair presentation. These are debt arrangements that originally required repayment of either less than twelve months or more than twelve months after issuance. Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Non-mortgage-backed securities [Member] Other Than Mortgage Backed Securities [Member] Represents the total of non-mortgage backed debt and equity instruments issued by federal, state or local government and/or by other non-mortgage related entities. Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Fair Value Option, Principal Balance, Consolidated Obligation Discount Notes Fair Value Option, Principal Balance, Consolidated Obligation Discount Notes Represents the outstanding amount of the unpaid principal balance of Consolidated Obligation Discount Notes for which the fair option has been elected. Interest Expense, Operating Interest Expense, Operating Deposits Interest Expense, Domestic Deposits Due in one year or less Federal Home Loan Bank, Advances, Maturities Summary, in Next Rolling 12 Months Net change in deposits Increase (Decrease) in Deposits Total other comprehensive income (loss) Total other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Federal Home Loan Bank, Regulatory Capital, Required Federal Home Loan Bank, Regulatory Capital, Required Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Rolling Year Five Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Rolling Year Five Schedule of Other Transactions [Table] Schedule of Other Transactions [Table] Schedule of Other Transactions [Table] Document Fiscal Period Focus Document Fiscal Period Focus Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Thereafter, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal After Year Five, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturities after year five following the date of the latest balance sheet, redeemable at fixed of determinable prices and dates. Fair Value Option, Disclosures Fair Value Option, Disclosures [Table Text Block] Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Five Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Five Hedging Relationship [Domain] Hedging Relationship [Domain] Legal Entity [Axis] Legal Entity [Axis] TOTAL ASSETS Assets Advances [Text Block] Federal Home Loan Bank, Advances [Text Block] Voluntary housing and community contributions Voluntary housing and community contributions Voluntary housing and community contributions Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease) Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease) Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk, active as of the balance sheet date. US Government Agency Insured Loans [Member] US Government Agency Insured Loans [Member] Due after two years through three years Federal Home Loan Bank, Advances, Maturities Summary, in Rolling Year Three Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Receivable Type [Axis] Receivable Type [Axis] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Due after one year through two years, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Year Two, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturing in year two following the date of the latest balance sheet, redeemable at fixed or determinable prices and dates. Federal Home Loan Bank of New York Federal Home Loan Bank of New York [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Federal Home Loan Bank, Regulatory Capital Ratio, Actual Federal Home Loan Bank, Regulatory Capital Ratio, Actual Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Due after one year through two years Federal Home Loan Bank, Advances, Maturities Summary, in Rolling Year Two Assets Assets, Fair Value Disclosure [Abstract] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Entity Emerging Growth Company Entity Emerging Growth Company Held-to-Maturity Securities, Fair Value Debt Securities, Held-to-Maturity, Fair Value Advances Interest Income, Federal Home Loan Bank Advances Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Debt Securities, Held-to-maturity [Table Text Block] Debt Securities, Held-to-Maturity [Table Text Block] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Fair Value, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Principal Owner [Member] Principal Owner [Member] Federal Home Loan Bank, Advances, Option [Domain] Federal Home Loan Bank, Advances, Option [Domain] Basis of Presentation [Text Block] Basis of Accounting [Text Block] Total other income (loss) Noninterest Income Capital Stock - Class B Putable, Outstanding Shares Common Stock, Shares, Outstanding Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss Voluntary Grants and Donations Voluntary Grants and Donations Amount of cash outflow for payments made by the Federal Home Loan Banks (FHLBanks) to voluntary contributions (non-AHP) Interest Expense, Capital Securities Interest Expense, Capital Securities Other assets Other Assets, Fair Value Disclosure Document Information [Table] Document Information [Table] OTHER EXPENSE Noninterest Expense [Abstract] Cash and due from banks Cash and Due from Banks Investments Classified by Contractual Maturity Date [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Due after two years through three years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Three Noncash Investing and Financing Items [Abstract] Noncash Investing and Financing Items [Abstract] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Net change in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Interest-Bearing Domestic Deposit, Demand Interest-Bearing Domestic Deposit, Demand Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Premiums Federal Home Loan Bank, Advances, Premium Retained Earnings [Member] Retained Earnings [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Schedule of Short-term and Long-term Debt [Line Items] Schedule of Short-term and Long-term Debt [Line Items] Schedule of Short-term and Long-term Debt [Line Items] Income Statement [Abstract] Income Statement [Abstract] Derivative assets, net (Note 6) Derivative assets, net Derivative Asset Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Trading securities Payments to Acquire Investments [Abstract] Common Class B [Member] Common Class B [Member] Interest Expense [Member] Interest Expense [Member] Other assets Other Assets Fair Value, Nonrecurring [Member] Fair Value, Nonrecurring [Member] Derivative, Collateral, Obligation to Return Securities That Can Be Sold or Repledged Derivative, Collateral, Obligation to Return Securities That Can Be Sold or Repledged Amount of obligation to return securities collateral that can be sold or repledged under master netting arrangements that have not been offset against derivative assets. Accrued interest payable Increase (Decrease) in Interest Payable, Net Document Information [Line Items] Document Information [Line Items] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Advance Percent Advance Percent Concentration of advances by percent Net Income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Total recurring liabilities Liabilities, Fair Value Disclosure standby letters of credit issuance commitments [Domain] standby letters of credit issuance commitments [Domain] A future dated irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation. Derivative, Notional Amount Derivative, Notional Amount Single Family [Member] Single Family [Member] Number of Finance Agency Regulatory Capital Requirements Number of Finance Agency Regulatory Capital Requirements Number of Finance Agency Regulatory Capital Requirements Capitalized interest on reverse mortgage securities Capitalized Interest on Reverse Mortgage Securities Capitalized Interest on Reverse Mortgage Securities Federal Home Loan Bank Branch [Domain] Federal Home Loan Bank Branch [Domain] City Area Code City Area Code Capital Stock, Percent Capital Stock, Percent Value of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized expressed as a percent. Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Activities with Other FHLBanks [Abstract] Activities with Other FHLBanks [Abstract] Activities with Other FHLBanks [Abstract] Other, net Noninterest Income, Other Operating Income Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Due after four years through five years Federal Home Loan Bank, Advances, Maturities Summary, in Rolling Year Five Debt Securities, Trading, and Equity Securities, FV-NI [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Cover Page [Abstract] Cover Page [Abstract] Cover Page [Abstract] Federal Home Loan Bank, Capital Stock to Assets, Actual Federal Home Loan Bank, Capital Stock to Assets, Actual Federal Home Loan Bank, Capital Stock to Assets, Actual Obligation with Joint and Several Liability Arrangement, Amount Outstanding Obligation with Joint and Several Liability Arrangement, Amount Outstanding INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transactions by Balance Sheet Grouping [Table Text Block] Related Party Transactions, by Balance Sheet Grouping [Table Text Block] Related Party Transactions, by Balance Sheet Grouping [Table Text Block] Proceeds from sales and maturities Proceeds from Sale and Maturity of Held-to-Maturity Securities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accrued interest receivable Accrued interest receivable Interest Receivable FHLBanks [Member] FHLBanks [Member] Represents all 12 Federal Home Loan Banks [Member] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability Fair Value Disclosure, off-Balance-Sheet Risks, Face Amount, Liability Available-for-sale securities (amortized cost of $28,478 and $27,336) Debt Securities, Available-for-Sale, Excluding Accrued Interest Debt Securities, Available-for-Sale, Excluding Accrued Interest NET INTEREST INCOME Interest Income (Expense), Operating Other liabilities Other Liabilities Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Payments for Federal Home Loan Bank Advances Payments for Federal Home Loan Bank Loans Amounts for the payment of Federal Home Loan Bank loans. Standbyletters of Credit Fees Standbyletters of Credit Fees Fees related to standby letters of credit Derivative Liability, Fair Value, Gross Liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Gain (Loss) on Derivative Instruments [Member] Gain (Loss) on Derivative Instruments [Member] Equity Components [Axis] Equity Components [Axis] Standby Letters of Credit [Member] Standby Letters of Credit [Member] Nature of Operations [Text Block] Nature of Operations [Text Block] Debt Securities, Available-for-sale Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Total deposits Deposits, Domestic Deposits, Domestic Commitments to Issue Bonds Commitments to Issue Bonds [Member] Commitments to Issue Bonds Interest-bearing deposits Proceeds from (Payments for) in Interest-Bearing Deposits in Banks SUPPLEMENTAL DISCLOSURES Supplemental Cash Flow Information [Abstract] Concentration Risk, Market Risk Concentration Risk, Market Risk Proceeds from discount notes transferred from other FHLBanks Proceeds from discount notes transferred from other FHLBanks Proceeds from discount notes transferred from other FHLBanks Derivative Item Hedged [Domain] Derivative Item Hedged [Domain] Derivative Item Hedged [Domain] Entity Address, State or Province Entity Address, State or Province Total interest income Interest and Dividend Income, Operating Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Consolidated Obligation Bonds [Member] Consolidated Obligation Bonds [Member] Consolidated Obligation Bonds [Member] This item represents Federal Home Loan Bank consolidated obligation bonds. [Member] Mortgage loans held for portfolio, net Impaired mortgage loans held for portfolio Loans Receivable, Fair Value Disclosure Related Party [Domain] Related and Nonrelated Parties [Domain] Investment Debt Securities Table [Line Items] Investment Debt Securities Table [Line Items] [Line Items] for Investment Debt Securities Table [Table] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Instrument [Axis] Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Fair Value of Financial Instruments, Policy Fair Value of Financial Instruments, Policy [Policy Text Block] Debt Securities, Held-to-Maturity, Excluded Accrued Interest [true false] Debt Securities, Held-to-Maturity, Excluded Accrued Interest [true false] Federal Home Loan Bank Advances, Percent Advances, Percent Federal Home Loan Bank Advances, Percent The aggregate carrying amount of all Federal Home Loan Bank loans (advances) expressed as a percent. Accounting Changes and Error Corrections [Abstract] Cash dividends paid Payments of Ordinary Dividends, Common Stock Entity [Domain] Entity [Domain] Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Deposit Liability [Table] Deposit Liability [Table] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Due after three years through four years, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Year Four, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturing in year four following the date of the latest balance sheet, redeemable at fixed of determinable prices and dates. Document Fiscal Year Focus Document Fiscal Year Focus Debt Securities, Available-for-sale, Amortized Cost Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Basis of Accounting, Policy [Policy Text Block] Basis of Accounting, Policy [Policy Text Block] Superior Guaranty Insurance Company Superior Guaranty Insurance Company [Member] Superior Guaranty Insurance Company Entity Interactive Data Current Entity Interactive Data Current Due after four years through five years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Three Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Three Reported Value Measurement [Member] Reported Value Measurement [Member] Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Next Twelve Rolling Months Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Next 12 Rolling Months Off-Balance Sheet Commitments [Table Text Block] Off-Balance Sheet Commitments [Table Text Block] Tabular disclosure of short-term or long-term contractual arrangements and obligations that, in accordance with GAAP, are not recognized on the balance sheet or may be recorded on the balance sheet in amounts that are different from the full contract or notional amount of the transactions. Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Federal Home Loan Bank, Leverage Capital, Actual Federal Home Loan Bank, Leverage Capital, Actual Earlier of Contractual Maturity or Next Call Date [Member] Earlier of Contractual Maturity or Next Call Date [Member] Earlier of Contractual Maturity or Next Call Date [Member] Available-for-sale securities Interest Income, Debt Securities, Available-for-Sale, Operating Interest Income, Federal Home Loan Bank Advances, Including Prepayment Fees Interest Income, Federal Home Loan Bank Advances, Including Prepayment Fees Interest Income, Federal Home Loan Bank Advances, Including Prepayment Fees Securities purchased under agreements to resell Interest Income, Securities Purchased under Agreements to Resell Financing Receivable, Nonaccrual Financing Receivable, Nonaccrual INTEREST INCOME Interest and Dividend Income, Operating [Abstract] Held-to-maturity Securities [Member] Held-to-Maturity Securities [Member] Federal Housing Finance Agency Regulator Expenses, Cost Assessed on Federal Home Loan Bank Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Total other expense Noninterest Expense Total investment securities Marketable Securities 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] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] US Treasury Securities [Member] US Treasury Securities [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] OTHER INCOME (LOSS) Noninterest Income [Abstract] Other [Member] Other Debt Obligations [Member] Other Debt Obligations [Member] Schedule of Federal Home Loan Bank Advances by Year of Contractual Maturity [Table Text Block] Federal Home Loan Bank, Advances [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Loans to Other Federal Home Loan Banks Loans to Other Federal Home Loan Banks Prepayment Fees on Advances, Net Prepayment Fees on Advances, Net Repurchases/redemptions of capital stock Stock Repurchased During Period, Value Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Retained Earnings, Unrestricted [Member] Retained Earnings, Unappropriated [Member] Entity Central Index Key Entity Central Index Key Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Maturities of Long-Term Debt [Table Text Block] Federal Home Loan Bank, Capital Stock to Assets, Required Federal Home Loan Bank, Capital Stock to Assets, Required Federal Home Loan Bank, Capital Stock to Assets, Required Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Capital Stock Value Including Mandatorily Redeemable Stock Percent Capital Stock Value Including Mandatorily Redeemable Stock Percent Capital Stock Value Including Mandatorily Redeemable Stock Percent Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Principal collected Proceeds from FHLBank Advance, Investing Activities Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Federal Home Loan Bank, Advances, Par Value Federal Home Loan Bank, Advances, Par Value Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Debt Instrument Call Feature [Axis] Debt Instrument Call Feature [Axis] Information about specific debt instruments call features. Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset Net Interest Settlements [Member] Net Interest Settlements [Member] Net interest settlements of Economic Hedges. Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Stockholders' Equity, Total [Member] Stockholders' Equity, Total [Member] Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Local Phone Number Local Phone Number Payment for (Proceeds from) Other Investing Activity Payment for (Proceeds from) Other Investing Activity Other adjustments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Advances [Abstract] Advances [Abstract] Advances [Abstract] Capital Stock Value Including Mandatorily Redeemable Stock Capital Stock Value Including Mandatorily Redeemable Stock Capital Stock Value Including Mandatorily Redeemable Stock Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] ASSETS Assets [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Interest-bearing Interest-Bearing Deposit Liabilities, Domestic Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Fair Value [Text Block] Fair Value Disclosures [Text Block] Fixed Income Interest Rate Fixed Income Interest Rate [Member] CAPITAL (Note 9) Equity, Attributable to Parent [Abstract] Held-to-maturity securities Proceeds from Sale and Maturity of Held-to-Maturity Securities [Abstract] Entity Address, Address Line One Entity Address, Address Line One Accumulated Other Comprehensive Income [Member] AOCI Attributable to Parent [Member] Investments [Domain] Investments [Domain] Additional Net Excess Exposure Collateral Pledged to Counterparties Additional Net Excess Exposure Collateral Pledged to Counterparties [Member] Additional Net Excess Exposure Collateral Pledged to Counterparties Derivatives and Hedging Activities [Text Block] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Liability, Not Subject to Master Netting Arrangement Derivative Liability, Not Subject to Master Netting Arrangement Derivative Asset, Fair Value, Gross Asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Retained Earnings, Restricted [Member] Retained Earnings, Appropriated [Member] Federal funds sold Increase (Decrease) in Federal Funds Sold Debt Securities, Trading, Restricted Debt Securities, Trading, Restricted Depreciation and amortization Depreciation, Amortization and Accretion, Net Held-to-maturity securities Interest Income, Debt Securities, Held-to-Maturity Entity Registrant Name Entity Registrant Name Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition, which expire within one year of the balance sheet date. Unrestricted Retained Earnings, Unappropriated Schedule of Long-term Debt by Call Feature [Table Text Block] Schedule of Long-Term Debt Instruments [Table Text Block] Compensation and benefits Labor and Related Expense Due after one year through two years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Two Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Mortgage-backed Securities, Issued by Private Enterprises [Member] Mortgage-Backed Securities, Issued by Private Enterprises [Member] Total adjustments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity Debt Securities, Available-for-Sale, Excluded Accrued Interest from Amortized Cost [true false] Debt Securities, Available-for-Sale, Excluded Accrued Interest from Amortized Cost [true false] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Advances [Member] Advances [Member] This item represents Federal Home Loan Bank loans (advances). Document Quarterly Report Document Quarterly Report Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Total recurring assets Total non-recurring assets Assets, Fair Value Disclosure Deposit Liabilities Disclosures Deposit Liabilities Disclosures [Text Block] Federal funds sold Federal Funds Sold Deposits (Note 7) Deposits [Abstract] Financial Asset, Past Due Financial Asset, Past Due [Member] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] GSE obligations [Member] US Government-sponsored Enterprises Debt Securities [Member] US Government-sponsored Enterprises Debt Securities [Member] Mortgage loans held for portfolio, net Loans and Leases Receivable, Net Amount [Abstract] Concentration Risk, Threshold Percentage Concentration Risk, Threshold Percentage Concentration Risk, Threshold Percentage Accounting Standards Update and Change in Accounting Principle [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Investment Type [Axis] Investment Type [Axis] Related Party [Axis] Related and Nonrelated Parties [Axis] Stockholders' Capital Stock Outstanding Concenetration Risk [Member] Stockholders' Capital Stock Outstanding Concenetration Risk [Member] Stockholders' Capital Stock Outstanding Concenetration Risk [Member] Schedule of Loans to Other Federal Home Loan Banks [Table Text Block] Schedule of Loans to Other Federal Home Loan Banks [Table Text Block] Schedule of Loans to Other Federal Home Loan Banks [Table Text Block] Debt Securities, Trading, Unrealized Gain Debt Securities, Trading, Unrealized Gain Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost Loans and Leases Receivable, Unamortized Premiums Loans and Leases Receivable, Unamortized Premiums Reflects the cumulative amount of premiums over the face amount of loans that are being amortized into income as an adjustment to yield. Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Derivative, Collateral, Right to Reclaim Securities That Can Be Sold or Repledged Derivative, Collateral, Right to Reclaim Securities That Can Be Sold or Repledged Amount of right to reclaim securities collateral that can be sold or repledged under master netting arrangements that have not been offset against derivative liabilities. Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Offsetting Assets [Table Text Block] Offsetting Assets [Table Text Block] Financing Receivable, Allowance for Credit Loss Financing Receivable, Allowance for Credit Loss Due in one year or less, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturing within the next twelve months following the date of the latest balance sheet, redeemable at fixed or determinable prices and dates. Total consolidated obligations Federal Home Loan Bank, Consolidated Obligations Schedule of Short-term Debt [Table] Short-Term Debt [Table] Par value Debt Instrument, Face Amount Deposit Liability [Line Items] Deposit Liability [Line Items] Payments for repurchases/redemptions of mandatorily redeemable capital stock Repayments of Mandatory Redeemable Capital Securities Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Advances Federal Home Loan Bank Advances, Fair Value Disclosure Federal Home Loan Bank Advances, Fair Value Disclosure Schedule of Related Party Transactions by Related Party Schedule of Related Party Transactions by Related Party [Table Text Block] Schedule of Related Party Transactions by Related Party Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Fair Value [Member] Estimate of Fair Value Measurement [Member] Affordable Housing Program payable Affordable Housing Program Obligation Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Federal Home Loan Bank, Regulatory Capital, Actual Federal Home Loan Bank, Regulatory Capital, Actual MRCS [Abstract] MRCS [Abstract] MRCS [Abstract] Credit Loss [Abstract] Credit Loss [Abstract] Discount notes Proceeds from Other Short-Term Debt Thereafter Long-Term Debt, Maturities, Repayments of Principal in Rolling after Year Five Net Shares Reclassified to Mandatorily Redeemable Capital Stock, Value Net Shares Reclassified to Mandatorily Redeemable Capital Stock, Value Loan Origination Commitments [Member] Loan Origination Commitments [Member] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), before Federal Home Loan Bank Assessments Financial Instruments [Domain] Financial Instruments [Domain] Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Short-term Debt [Member] Short-Term Debt [Member] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Discount notes (including $4,755 and $17,382 at fair value held under fair value option) Total Federal Home Loan Bank, Consolidated Obligations, Discount Notes Callable [Member] Callable [Member] A debt obligation not collateralized by pledge, mortgage or other lien in the entity's assets and is callable. Securities purchased under agreements to resell Proceeds from (Payments for) Securities Purchased under Agreements to Resell Restricted Retained Earnings, Appropriated Retained Earnings, Appropriated Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Noncallable or Nonputable [Member] Noncallable or Nonputable [Member] A debt obligation not collateralized by pledge, mortgage or other lien in the entity's assets and is neither callable or putable. Principal collected Proceeds from Principal Repayment, Loan and Lease, Held-for-Investment Minimum [Member] Minimum [Member] Banking Regulation, Regulatory Capital Requirement, Compliance [Table] Banking Regulation, Regulatory Capital Requirement, Compliance [Table] Debt Instrument Call Feature [Domain] Debt Instrument Call Feature [Domain] Provides general categories of debt call features for which information is required or determined to be disclosed. Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Three Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Three Fair Value Option Election Fair Value Option Election [Member] Fair Value Option Election INTEREST EXPENSE Interest Expense, Operating and Nonoperating [Abstract] Leverage Ratio, Required Leverage Ratio, Required Leverage ratio requirement as defined in the regulations. Financing Receivable, Accrued Interest, before Allowance for Credit Loss Financing Receivable, Accrued Interest, before Allowance for Credit Loss Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Purchases Payments to Acquire Debt Securities, Available-for-Sale TOTAL COMPREHENSIVE INCOME (LOSS) Total Comprehensive Income Comprehensive Income (Loss), Net of Federal Home Loan Bank Assessments, Attributable to Parent Consolidated Obligations [Text Block] Debt Disclosure [Text Block] Net change in: Increase Decrease In Investing Activities [Abstract] None State or local housing agency obligations [Member] US States and Political Subdivisions Debt Securities [Member] Debt Securities, Trading, and Equity Securities, FV-NI [Abstract] Debt Securities, Trading, and Equity Securities, FV-NI [Abstract] Accrued interest payable Accrued interest payable Interest Payable Consolidated Obligation Discount Notes [Member] Consolidated Obligation Discount Notes [Member] This item represents Federal Home Loan Bank consolidated obligation discount notes. Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Gains (Losses) on Derivatives Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Commitments and Contingencies [Text Block] Commitments and Contingencies Disclosure [Text Block] Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years Mortgage loans held for portfolio Interest and Fee Income, Loans, Consumer, Real Estate Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, after Rolling Year Five Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, after Rolling Year Five Par Value, Weighted Average Interest Rate Short-Term Debt, Weighted Average Interest Rate, at Point in Time Trading securities Interest Income, Debt Securities, Trading, Operating Commitments and contingencies (Note 11) Commitments and Contingencies Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Next Rolling Twelve Months Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Next Rolling 12 Months Discounts Federal Home Loan Bank, Advances, Discount Deposits, Percent Deposits, Percent The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others expressed as a precent. Entity Small Business Entity Small Business Exchange Cleared [Member] Exchange Cleared [Member] Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Other operating expenses Other Cost and Expense, Operating Investment securities (Note 3) Marketable Securities [Abstract] Document Transition Report Document Transition Report Interest Income [Member] Interest Income [Member] Schedules of Concentration of Risk, by Risk Factor Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Recently Adopted and Issued Accounting Guidance [Text Block] Accounting Standards Update and Change in Accounting Principle [Text Block] Short-term Debt [Line Items] Short-Term Debt [Line Items] Bonds Repayments of Other Long-Term Debt Traded Not Settled Investments Traded Not Settled Investments This represents traded but not yet settled investments purchased by the Bank during the period. Equity Component [Domain] Equity Component [Domain] Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Document Period End Date Document Period End Date Hedged Liability, Fair Value Hedge Hedged Liability, Fair Value Hedge Premiums Debt Instrument, Unamortized Premium Federal Home Loan Bank of Cincinnati Federal Home Loan Bank of Cincinnati [Member] Geographic Distribution [Domain] Geographic Distribution [Domain] Hedging Designation [Axis] Hedging Designation [Axis] Bonds, Fair Value Debt Instrument, Fair Value Disclosure Consolidated obligations - Discount notes Consolidated obligations - Discount notes Interest Expense, Other Short-Term Borrowings Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Financing Receivable, Troubled Debt Restructuring Financing Receivable, Modified, Accumulated Document Type Document Type Fair Value, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Loss Contingencies [Table] Loss Contingencies [Table] Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Derivative Contract Type [Domain] Derivative Contract Type [Domain] Derivative Contract [Domain] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Proceeds from issuance of capital stock Proceeds from Issuance of Common Stock Federal Home Loan Bank Branch [Axis] Federal Home Loan Bank Branch [Axis] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Affordable Housing Program assessments Affordable Housing Program Assessments Federal Home Loan Bank, Advances [Line Items] Federal Home Loan Bank, Advances [Line Items] Unrealized Gain (Loss) on Derivatives Unrealized Gain (Loss) on Derivatives interest rate caps and floors interest rate caps and floors [Member] interest rate caps and floors Statistical Measurement [Axis] Statistical Measurement [Axis] Federal Home Loan Bank, Advances, Option [Axis] Federal Home Loan Bank, Advances, Option [Axis] Payments for (Proceeds from) Hedge, Financing Activities Payments for (Proceeds from) Hedge, Financing Activities Loans and Leases Receivable, Allowance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Current Wells Fargo Bank N.A. Wells Fargo Bank N.A. [Member] Wells Fargo Bank N.A. Proceeds from FHLBank Borrowings, Financing Activities Proceeds from FHLBank Borrowings, Financing Activities Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-Maturity [Table] Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Rolling Year Four Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing in Rolling Year Four Financial Standby Letter of Credit [Member] Financial Standby Letter of Credit [Member] Investment Debt Securities Table [Table] Investment Debt Securities Table [Table] Investment Debt Securities Table [Table] U.S. obligations MBS [Member] Mortgage Backed Securities Other U.S. Obligations [Member] Mortgage Backed Securities Other U.S. Obligations [Member] Financing Receivable, Percent Past Due Financing Receivable, Percent Past Due Schedule of Derivative Instruments By Type, Gain (Loss) in Statement of Financial Performance [Table Text Block] Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Transaction Type [Axis] Transaction Type [Axis] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Derivative Instruments, Gain (Loss) [Table Text Block] Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option Affordable Housing Program payments Payments for Affordable Housing Programs Schedule of Other Transactions [Line Items] Schedule of Other Transactions [Line Items] Schedule of Other Transactions [Line Items] Fair Value, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fixed rate, long-term single family mortgages [Member] Loans Receivable With Fixed Rates Of Interest Long Term [Member] A mortgage loan issued by a bank with a fixed rate of interest and a repayment period of more than 15 years [Member] Payments of FHLBank Borrowings, Financing Activities Payments of FHLBank Borrowings, Financing Activities Office of Finance Office of Finance, Cost Assessed on Federal Home Loan Bank Federal Home Loan Bank of San Francisco Federal Home Loan Bank of San Francisco [Member] Related Party Transaction [Table] Related Party Transaction [Table] Advances (Note 4) Advances Total Federal Home Loan Bank, Advance Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition, which expire after one year of the balance sheet date. Multifamily [Member] Multifamily [Member] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Interest-bearing deposits Interest-bearing Deposits, Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. Consolidated obligations - Bonds Consolidated obligations - Bonds Interest Expense, Other Long-Term Debt Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Originated or purchased Payment for Acquisition, Loan, Held-for-Investment Debt Security Category [Axis] Debt Security Category [Axis] Due after three years through four years Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Fair value hedging adjustments Federal Home Loan Bank, Advances, Valuation Adjustments for Hedging Activities Due after four years through five years, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Year Five, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturing in year five following the date of the latest balance sheet, redeemable at fixed of determinable prices and dates. Loans and Leases Receivable, Hedging Basis Adjustment Loans and Leases Receivable, Hedging Basis Adjustment Reflects the cumulative amount of hedging adjustments that are being amortized into income as an adjustment of yield. Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income Total amount of gain (loss) derived from fair value hedges recognized in net interest income in the period. Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Schedule of Loans From Other Federal Home Loan Banks [Table Text Block] Schedule of Loans From Other Federal Home Loan Banks [Table Text Block] Schedule of Loans From Other Federal Home Loan Banks [Table Text Block] Over the Counter [Member] Over-the-Counter [Member] Interest-Bearing Domestic Deposit, Time Deposits Interest-Bearing Domestic Deposit, Time Deposits Mortgage loans held for portfolio Payments for (Proceeds from) Loans and Leases [Abstract] Total par value Long-Term Debt, Gross Gain (Loss) on Securities Gain (Loss) on Securities [Table Text Block] Measurement Frequency [Domain] Measurement Frequency [Domain] Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure Fair value portion of Amount of joint and several obligations consisting of consolidated obligation bonds and discount notes issued by Federal Home Loan Banks (FHLBanks). Federal Home Loan Bank Advances [Member] Federal Home Loan Bank Advances [Member] Regulatory Capital Ratio, Required Regulatory Capital Ratio, Required Regulatory capital ratio requirement as defined in the regulations. Bonds Proceeds from Issuance of Other Long-Term Debt Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Capital [Text Block] Equity [Text Block] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Financing Receivable, Allowance for Credit Loss, Noncurrent Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Mortgage loans held for portfolio, net of allowance for credit losses of $6 and $6 (Note 5) Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Due in one year or less Long-Term Debt, Maturities, Repayments of Principal in Next Rolling 12 Months Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Securities purchased under agreements to resell Securities Purchased under Agreements to Resell, Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents funds loaned in the form of security resale agreements if the agreement requires the purchaser to resell the identical security purchased or a security that meets the definition of "substantially the same." Also includes purchases of participations in pools of securities that are subject to a resale agreement. Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Four Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Four Other liabilities Increase (Decrease) in Other Operating Liabilities Related Party Transaction, Amounts of Transaction Related Party Transaction, Amounts of Transaction Federal Home Loan Bank, Risk-Based Capital, Required Federal Home Loan Bank, Risk-Based Capital, Required Fair Value, Option, Aggregate Differences, Consolidated Obligation Discount Notes Fair Value, Option, Aggregate Differences, Consolidated Obligation Discount Notes This item represents the gain (loss) brought about by the difference between the aggregate fair value and the aggregate unpaid principal balance of Consolidated Obligations Discount Notes that have contractual principal amounts and for which the fair value option has been elected. Commitments to Issue Discount Notes [Member] Commitments to Issue Discount Notes [Member] An agreement to issue consolidated discount notes issued by the Federal Home Loan Banks. Payments for repurchases/redemptions of capital stock Payments for Repurchase of Common Stock Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Two Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, in Rolling Year Two Consolidated obligations (Note 8) Federal Home Loan Bank, Consolidated Obligations [Abstract] Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Receivables [Abstract] Payments for maturing and retiring consolidated obligations Repayments of Long-Term Debt [Abstract] Offsetting Assets and Liabilities [Table Text Block] Offsetting Liabilities [Table Text Block] Total retained earnings Retained Earnings (Accumulated Deficit) Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement Residential Portfolio Segment Residential Portfolio Segment [Member] Transaction [Domain] Transaction [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Payments to Acquire Trading Securities Held-for-investment Payment for Acquisition, Trading Security, Held-for-Investment Class of Stock [Axis] Class of Stock [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Contractual services Contractual Service Expense Contractual service expenses that are not separately presented in any other noninterest expense category. Held-to-maturity securities Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Professional fees Professional Fees Statement [Table] Statement [Table] Due after two years through three years, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Year Three, Weighted Average Interest Rate Weighted average interest rate of the amount of Consolidated Oblgiations Bonds maturing in year three following the date of the latest balance sheet, redeemable at fixed of determinable prices and dates. Derivative liabilities, net (Note 6) Derivative liabilities, net Derivative liabilities, net Derivative Liability Adjustments to reconcile net income to net cash provided by (used in) operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Other, net Other Noninterest Expense Percent of Average Balance of Outstanding Consolidated Obligations Prescribed per the Joint Capital Enhancement Agreement For Each Previous Quarter Percent of Average Balance of Outstanding Consolidated Obligations Prescribed per the Joint Capital Enhancement Agreement Represents the percentage of Federal Home Loan Bank's (FHLBank's) average balance of outstanding consolidated obligations necessary to equal the restricted retained earnings minimum. Interest Rate Contract [Member] Interest Rate Contract [Member] Derivative Asset, Not Subject to Master Netting Arrangement Derivative Asset, Not Subject to Master Netting Arrangement Conventional Mortgage Loan [Member] Conventional Mortgage Loan [Member] Banking Regulation, Total Risk-Based Capital, Excess, Actual Banking Regulation, Total Risk-Based Capital, Excess, Actual BALANCE (shares) BALANCE (shares) Shares, Issued Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Document [Domain] Document [Domain] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Debt Assumptions Debt Assumptions [Member] Debt Assumptions Net proceeds from issuance of consolidated obligations Proceeds from Issuance of Long-Term Debt [Abstract] Discount notes Repayments of Other Short-Term Debt Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Amendment Flag Amendment Flag Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Interest-bearing deposits Interest-Bearing Deposits in Banks and Other Financial Institutions Federal Home Loan Bank of Topeka [Member] Federal Home Loan Bank of Topeka [Member] Written Notice Period Required to Repurchase Excess Membership Capital Stock Written Notice Period Required to Repurchase Excess Membership Capital Stock Written Notice Period Required to Repurchase Excess Membership Capital Stock Loans and Leases Receivable, Allowance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Fixed rate, medium-term single family mortgages [Member] Loans Receivable With Fixed Rates Of Interest Medium Term [Member] A mortgage loan issued by a bank with a fixed rate of interest and a repayment period of 15 years or less [Member] Proceeds from Federal Home Loan Bank Loans Proceeds from Federal Home Loan Bank Loans Proceeds from Federal Home Loan Bank Loans Receivable [Domain] Receivable [Domain] Background Information [Abstract] Background Information [Abstract] Background Information [Abstract] Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Loans and Leases Receivable, Unamortized Discounts Loans and Leases Receivable, Unamortized Discounts Reflects the cumulative amount of discounts from the face amount of loans that are being amortized into income as an adjustment of yield. Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Director [Member] Director [Member] Advances Proceeds From Sale of Federal Home Loan Bank Advances [Abstract] Proceeds From Sale of Federal Home Loan Bank Advances [Abstract] Related Party Transaction [Domain] Related Party Transaction [Domain] Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement Deposit Liabilities, Type Deposit Liabilities, Type [Table Text Block] Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Banking Regulation, Total Capital [Abstract] Banking Regulation, Total Capital [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Tax Identification Number Entity Tax Identification Number Discounts and concessions Debt Instrument, Unamortized Discount Debt Securities, Trading, Realized Gain (Loss) Debt Securities, Trading, Realized Gain (Loss) Net change in fair value of available-for-sale securities Other comprehensive income (loss) before reclassifications, Net unrealized losses OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Capital Stock - Class B Putable, Par Value Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Common Stock, Shares, Issued Common Stock, Shares, Issued Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Geographic Distribution [Axis] Geographic Distribution [Axis] Loans from Other Federal Home Loan Banks Loans from Other Federal Home Loan Banks Loans from Other Federal Home Loan Banks Mortgage-backed securities, GSE [Member] Mortgage-backed securities, GSE [Member] Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Subsequent Events [Text Block] Subsequent Events [Text Block] Available-for-sale securities Payments for (Proceeds from) Investments [Abstract] Due after three years through four years Federal Home Loan Bank, Advances, Maturities Summary, in Rolling Year Four Securities purchased under agreements to resell Securities Purchased under Agreements to Resell Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] TOTAL LIABILITIES Liabilities Mortgage-backed securities [Member] Collateralized Mortgage Backed Securities [Member] Collateralized Mortgage-Backed Securities [Member] Bonds Federal Home Loan Bank, Consolidated Obligations, Bonds Federal Home Loan Bank, Consolidated Obligations, Bonds Mortgage Loans Held for Portfolio [Text Block] Financing Receivables [Text Block] Federal Home Loan Bank, Advances [Table] Federal Home Loan Bank, Advances [Table] Proceeds from sales and maturities Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Repurchases/redemptions of capital stock (shares) Stock Repurchased During Period, Shares Offsetting Assets and Liabilities [Table] Offsetting Assets and Liabilities [Table] Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. Net gains (losses) on trading securities Net gains (losses) on trading securities Debt Securities, Trading, Gain (Loss) Proceeds from Maturities, Repayments and Calls of Debt Securities, FV-NI, Held-for-investment Proceeds from Maturity, Repayment, and Call, Debt Security, Trading, Held-for-Investment Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing after Rolling Year Five Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Maturing after Rolling Year Five Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Two Federal Home Loan Bank Advances, Weighted Average Interest Rate, Maturing in Rolling Year Two Proceeds from issuance of capital stock Stock Issued During Period, Value, New Issues Statement [Line Items] Statement [Line Items] Federal Home Loan Bank, Leverage Ratio, Actual Federal Home Loan Bank, Leverage Ratio, Actual Hedged Asset, Fair Value Hedge Hedged Asset, Fair Value Hedge Federal Home Loan Bank, Advances, Weighted Average Interest Rate Federal Home Loan Bank, Advances, Weighted Average Interest Rate Capital stock - Class B putable ($100 par value); 72,227,559 and 65,090,978 issued and outstanding shares Capital Stock Common Stock, Other Value, Outstanding Common Stock [Member] Common Stock [Member] Debt Securities, Available-for-sale Debt Securities, Available-for-Sale Held-to-maturity securities (fair value of $415 and $452) Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Net increase (decrease) in cash and due from banks Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]