Recently Issued Accounting Standards and Interpretations	6 Months Ended
Jun. 30, 2011
Recently Issued Accounting Standards and Interpretations [Abstract]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recently Issued Accounting Standards and Interpretations Presentation of Comprehensive Income. On June 16, 2011, the Financial Accounting Standards Board (FASB) issued guidance to increase the prominence of other comprehensive income in financial statements. This guidance requires an entity that reports items of other comprehensive income to present comprehensive income in either a single statement or in two consecutive statements. This guidance eliminates the option to present other comprehensive income in a statement of capital. This guidance is effective for interim and annual periods beginning after December 15, 2011 (January 1, 2012 for the FHLBank) and should be applied retrospectively for all periods presented. Early adoption is permitted. The FHLBank plans to elect the two-statement approach beginning on January 1, 2012. The adoption of this guidance is expected to be limited to the presentation of its financial statements. Fair Value Measurement and Disclosure Convergence. On May 12, 2011, the FASB and the International Accounting Standards Board issued substantially converged guidance on fair value measurement and disclosure requirements. This guidance clarifies how fair value accounting should be applied where its use is already required or permitted by other standards within GAAP or International Financial Reporting Standards; these amendments do not require additional fair value measurements. This guidance generally represents clarifications to the application of existing fair value measurement and disclosure requirements, as well as some instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. This guidance is effective for interim and annual periods beginning on or after December 15, 2011 (January 1, 2012 for the FHLBank) and should be applied prospectively. The adoption of this guidance may result in increased financial statement disclosures, but is not expected to have a material effect on the FHLBank's financial condition, results of operations, or cash flows. Reconsideration of Effective Control for Repurchase Agreements. On April 29, 2011, the FASB issued guidance to improve the accounting for repurchase agreements and other agreements that both entitle and obligate a transferor to repurchase or redeem financial assets before their maturity. The new guidance removes from the assessment of effective control: (1) the criterion requiring the transferor to have the ability to repurchase or redeem financial assets before their maturity on substantially the agreed terms, even in the event of the transferee's default, and (2) the collateral maintenance implementation guidance related to that criterion. This guidance is effective for interim and annual reporting periods beginning on or after December 15, 2011 (January 1, 2012 for the FHLBank). This guidance will be applied prospectively to transactions or modifications of existing transactions that occur on or after the effective date. The FHLBank does not believe the adoption of this guidance will have a material effect on its financial condition, results of operations, and cash flows. A Creditor’s Determination of Whether a Restructuring Is a Troubled Debt Restructuring. On April 5, 2011, the FASB issued guidance to clarify which debt modifications constitute troubled debt restructurings. This guidance is intended to help creditors determine whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring, both for purposes of recording an impairment loss and for presenting previously deferred disclosures related to troubled debt restructurings. The required disclosures were effective for interim and annual reporting periods beginning on or after June 15, 2011 (July 1, 2011 for the FHLBank) and applied retrospectively to troubled debt restructurings occurring on or after the beginning of the annual period of adoption. The adoption of this amended guidance did not materially affect the FHLBank's financial condition, results of operations, or cash flows.

Recently Issued Accounting Standards and Interpretations

Presentation of Comprehensive Income. On June 16, 2011, the Financial Accounting Standards Board (FASB) issued guidance to increase the prominence of other comprehensive income in financial statements. This guidance requires an entity that reports items of other comprehensive income to present comprehensive income in either a single statement or in two consecutive statements. This guidance eliminates the option to present other comprehensive income in a statement of capital. This guidance is effective for interim and annual periods beginning after December 15, 2011 (January 1, 2012 for the FHLBank) and should be applied retrospectively for all periods presented. Early adoption is permitted. The FHLBank plans to elect the two-statement approach beginning on January 1, 2012. The adoption of this guidance is expected to be limited to the presentation of its financial statements.

Fair Value Measurement and Disclosure Convergence. On May 12, 2011, the FASB and the International Accounting Standards Board issued substantially converged guidance on fair value measurement and disclosure requirements. This guidance clarifies how fair value accounting should be applied where its use is already required or permitted by other standards within GAAP or International Financial Reporting Standards; these amendments do not require additional fair value measurements. This guidance generally represents clarifications to the application of existing fair value measurement and disclosure requirements, as well as some instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. This guidance is effective for interim and annual periods beginning on or after December 15, 2011 (January 1, 2012 for the FHLBank) and should be applied prospectively. The adoption of this guidance may result in increased financial statement disclosures, but is not expected to have a material effect on the FHLBank's financial condition, results of operations, or cash flows.

Reconsideration of Effective Control for Repurchase Agreements. On April 29, 2011, the FASB issued guidance to improve the accounting for repurchase agreements and other agreements that both entitle and obligate a transferor to repurchase or redeem financial assets before their maturity. The new guidance removes from the assessment of effective control: (1) the criterion requiring the transferor to have the ability to repurchase or redeem financial assets before their maturity on substantially the agreed terms, even in the event of the transferee's default, and (2) the collateral maintenance implementation guidance related to that criterion. This guidance is effective for interim and annual reporting periods beginning on or after December 15, 2011 (January 1, 2012 for the FHLBank). This guidance will be applied prospectively to transactions or modifications of existing transactions that occur on or after the effective date. The FHLBank does not believe the adoption of this guidance will have a material effect on its financial condition, results of operations, and cash flows.

A Creditor’s Determination of Whether a Restructuring Is a Troubled Debt Restructuring. On April 5, 2011, the FASB issued guidance to clarify which debt modifications constitute troubled debt restructurings. This guidance is intended to help creditors determine whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring, both for purposes of recording an impairment loss and for presenting previously deferred disclosures related to troubled debt restructurings. The required disclosures were effective for interim and annual reporting periods beginning on or after June 15, 2011 (July 1, 2011 for the FHLBank) and applied retrospectively to troubled debt restructurings occurring on or after the beginning of the annual period of adoption. The adoption of this amended guidance did not materially affect the FHLBank's financial condition, results of operations, or cash flows.