Fair value as of the balance sheet date of interest owed, but not paid.

No definition available.

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- Definition

Fair value as of the balance sheet date of interest earned but not received

+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

Fair value as of the balance sheet date of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold.

+ References

No definition available.

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Federal Home Loan Bank Advances, Fair Value Disclosure

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No definition available.

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Interest-bearing Deposits, Fair Value Disclosure

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No definition available.

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Fair value as of the balance sheet date of funds outstanding loaned in the form of security resale agreements.

+ References

No definition available.

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- Definition

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 Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6505594

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+ References

No definition available.

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- Definition

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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- Definition

Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

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-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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- Definition

The amount that would be paid, determined under the conditions specified in the contract, if as of the reporting date, the holder of the share has the right to redeem the shares.

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No definition available.

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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 Trading Securities which consist of all investments in certain debt and equity securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for which an entity has elected the fair value option. Trading generally reflects active and frequent buying and selling, and trading securities are generally used with the objective of generating profits on short-term differences in price, but this category of investments may also include items which are not intended to be sold in the near term or for which the fair value option has been elected.

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-Topic 320

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Estimated Fair Values (Carrying Value and Fair Value of Financial Instruments) (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	$ 25,394,000	$ 36,256,000
Mandatorily redeemable capital stock	188,128,000	45,673,000	48,077,000	34,215,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	246,723,000	634,278,000
Interest-bearing deposits	11,164,000	16,180,000
Securities purchased under agreement to resell	2,250,000,000	0
Federal funds sold	2,334,993,000	2,449,936,000
Trading securities	1,114,015,000	984,285,000
AFS securities	6,326,162,000	4,356,147,000
HTM securities	6,416,070,000	8,782,348,000
Advances	37,935,212,000	30,853,987,000
Accrued interest receivable	120,715,000	132,152,000
Derivative assets	25,394,000	36,256,000
Deposits	1,054,957,000	1,099,715,000
Mandatorily redeemable capital stock	188,333,000	45,673,000
Accrued interest payable	145,672,000	125,564,000
Derivative liabilities	402,355,000	441,975,000
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	246,723,000	634,278,000
Interest-bearing deposits	11,164,000	16,180,000
Securities purchased under agreement to resell	2,250,000,000	0
Federal funds sold	2,335,000,000	2,450,000,000
Trading securities	1,114,015,000	984,285,000
AFS securities	6,326,162,000	4,356,147,000
HTM securities	6,335,836,000	8,832,845,000
Advances	37,738,621,000	30,604,801,000
Accrued interest receivable	120,715,000	132,152,000
Derivative assets	25,394,000	36,256,000
Deposits	1,054,956,000	1,099,694,000
Mandatorily redeemable capital stock	188,128,000	45,673,000
Accrued interest payable	145,672,000	125,564,000
Derivative liabilities	402,355,000	441,975,000
Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	246,723,000
Interest-bearing deposits	0
Securities purchased under agreement to resell	0
Federal funds sold	0
Trading securities	4,137,000
AFS securities	1,998,000
HTM securities	0
Advances	0
Accrued interest receivable	0
Derivative assets	0
Deposits	0
Mandatorily redeemable capital stock	188,333,000
Accrued interest payable	0
Derivative liabilities	0
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0
Interest-bearing deposits	11,164,000
Securities purchased under agreement to resell	2,250,000,000
Federal funds sold	2,334,993,000
Trading securities	1,109,878,000
AFS securities	4,842,925,000
HTM securities	5,137,554,000
Advances	37,935,212,000
Accrued interest receivable	120,715,000
Derivative assets	366,947,000
Deposits	1,054,957,000
Mandatorily redeemable capital stock	0
Accrued interest payable	145,672,000
Derivative liabilities	1,146,502,000
Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0
Interest-bearing deposits	0
Securities purchased under agreement to resell	0
Federal funds sold	0
Trading securities	0
AFS securities	1,481,239,000
HTM securities	1,278,516,000
Advances	0
Accrued interest receivable	0
Derivative assets	0
Deposits	0
Mandatorily redeemable capital stock	0
Accrued interest payable	0
Derivative liabilities	0
Netting and Collateral [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0
Interest-bearing deposits	0
Securities purchased under agreement to resell	0
Federal funds sold	0
Trading securities	0
AFS securities	0
HTM securities	0
Advances	0
Accrued interest receivable	0
Derivative assets	(341,553,000)
Deposits	0
Mandatorily redeemable capital stock	0
Accrued interest payable	0
Derivative liabilities	(744,147,000)
Residential Portfolio Segment [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	3,880,263,000	4,168,409,000
Residential Portfolio Segment [Member] \| Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	3,579,079,000	3,883,127,000
Residential Portfolio Segment [Member] \| Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Residential Portfolio Segment [Member] \| Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	3,880,263,000
Residential Portfolio Segment [Member] \| Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Residential Portfolio Segment [Member] \| Netting and Collateral [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Banking on Business Loans [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	13,176,000	14,016,000
Banking on Business Loans [Member] \| Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	13,176,000	14,016,000
Banking on Business Loans [Member] \| Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Banking on Business Loans [Member] \| Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Banking on Business Loans [Member] \| Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	13,176,000
Banking on Business Loans [Member] \| Netting and Collateral [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	0
Discount Notes [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	20,889,443,000	10,921,703,000
Discount Notes [Member] \| Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	20,888,257,000	10,921,498,000
Discount Notes [Member] \| Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	0
Discount Notes [Member] \| Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	20,889,443,000
Discount Notes [Member] \| Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	0
Discount Notes [Member] \| Netting and Collateral [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes	0
Consolidated Obligation Bonds [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	34,381,802,000	36,474,950,000
Consolidated Obligation Bonds [Member] \| Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	33,665,452,000	35,613,036,000
Consolidated Obligation Bonds [Member] \| Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	0
Consolidated Obligation Bonds [Member] \| Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	34,381,802,000
Consolidated Obligation Bonds [Member] \| Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	0
Consolidated Obligation Bonds [Member] \| Netting and Collateral [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds	$ 0