Federal Home Loan Bank of Cincinnati 10-Q 10 Aug 23 2023 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2023	Jul. 31, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	000-51399
Entity Registrant Name	FEDERAL HOME LOAN BANK OF CINCINNATI
Entity Incorporation, State or Country Code	X1
Entity Tax Identification Number	31-6000228
Entity Address, Address Line One	600 Atrium Two, P.O. Box 598
Entity Address, City or Town	Cincinnati
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	45201-0598
City Area Code	513
Local Phone Number	852-7500
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		51,123,749
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001326771
Current Fiscal Year End Date	--12-31

Statements of Condition

Statements of Condition - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks		$ 20,274	$ 19,604
Interest-bearing deposits		2,245,131	1,770,194
Securities purchased under agreements to resell		12,205,490	519,540
Federal funds sold		14,153,000	5,399,000
Investment securities:
Trading securities		1,728,492	1,979,816
Available-for-sale securities (amortized cost of $9,726,311 and $8,680,491 at June 30, 2023 and December 31, 2022, respectively)		9,692,947	8,631,765
Held-to-maturity securities (fair value of $15,516,658 and $14,983,043 at June 30, 2023 and December 31, 2022, respectively)	[1]	15,833,684	15,304,359
Total investment securities		27,255,123	25,915,940
Advances (includes $103,313 and $4,954 at fair value under fair value option at June 30, 2023 and December 31, 2022, respectively)	[2]	86,890,470	67,019,555
Mortgage loans held for portfolio, net of allowance for credit losses of $338 and $301 at June 30, 2023 and December 31, 2022, respectively		6,996,186	7,162,509
Accrued interest receivable		635,623	283,132
Derivative assets		701,758	490,560
Other assets, net		26,342	29,470
TOTAL ASSETS		151,129,397	108,609,504
LIABILITIES
Deposits		1,151,572	1,039,427
Consolidated Obligations:
Discount Notes (includes $15,143,932 and $21,010,746 at fair value under fair value option at June 30, 2023 and December 31, 2022, respectively)		48,336,904	40,691,180
Bonds (includes $19,291,817 and $5,469,583 at fair value under fair value option at June 30, 2023 and December 31, 2022, respectively)		93,212,525	59,667,745
Total Consolidated Obligations		141,549,429	100,358,925
Mandatorily redeemable capital stock		15,965	17,453
Accrued interest payable		463,628	290,194
Affordable Housing Program payable		121,287	87,923
Derivative liabilities		152	460
Other liabilities		430,807	312,891
Total liabilities		143,732,840	102,107,273
Commitments and contingencies
CAPITAL
Capital stock Class B putable ($100 par value); issued and outstanding shares: 58,484 shares at June 30, 2023 and 51,507 shares at December 31, 2022		5,848,415	5,150,679
Retained earnings:
Unrestricted		953,205	840,774
Restricted		629,111	560,118
Total retained earnings		1,582,316	1,400,892
Accumulated other comprehensive income (loss)		(34,174)	(49,340)
Total capital		7,396,557	6,502,231
TOTAL LIABILITIES AND CAPITAL		$ 151,129,397	$ 108,609,504
[1]Carrying value equals amortized cost.[2]Carrying values exclude accrued interest receivable of (in thousands) $486,408 and $149,255 as of June 30, 2023 and December 31, 2022, respectively.

Statements of Condition (Parent

Statements of Condition (Parenthetical) - USD ($) shares in Thousands, $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	$ 9,726,311		$ 8,680,491
Debt Securities, Held-to-maturity, Fair Value		$ 15,516,658		$ 14,983,043
Common Stock, Par or Stated Value Per Share		$ 100
Common Stock, Shares, Issued		58,484		51,507
Common Stock, Shares, Outstanding		58,484		51,507
Mortgage Purchase Program [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest		$ 338		$ 301
Fair Value Option Election
Advances, Fair Value Disclosure		103,313		4,954
Fair Value Option Election | Consolidated Obligation Bonds [Member]
Consolidated Obligations, Bonds		19,291,817		5,469,583
Fair Value Option Election | Discount Notes [Member]
Consolidated Obligations, Discount Notes		15,143,932		21,010,746
Estimate of Fair Value Measurement [Member]
Debt Securities, Held-to-maturity, Fair Value		15,516,658		14,983,043
Estimate of Fair Value Measurement [Member] | Consolidated Obligation Bonds [Member]
Consolidated Obligations, Bonds		92,192,711	[2]	58,698,959	[3]
Estimate of Fair Value Measurement [Member] | Discount Notes [Member]
Consolidated Obligations, Discount Notes		$ 48,328,883	[4]	$ 40,680,714	[5]
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively.[2]Includes (in thousands) $19,291,817 of Consolidated Obligation Bonds recorded under the fair value option at June 30, 2023.[3]Includes (in thousands) $5,469,583 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2022.[4]Includes (in thousands) $15,143,932 of Consolidated Obligation Discount Notes recorded under the fair value option at June 30, 2023.[5]Includes (in thousands) $21,010,746 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2022.

Statements of Income

Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST INCOME:
Advances	$ 1,439,257	$ 120,653	$ 2,335,866	$ 165,971
Prepayment fees on Advances, net	1,703	304	1,734	3,003
Interest-bearing deposits	36,180	1,924	61,030	2,103
Securities purchased under agreements to resell	59,281	2,404	82,798	3,332
Federal funds sold	188,295	19,982	276,164	23,207
Investment securities:
Trading securities	17,296	29,744	35,750	67,570
Available-for-sale securities	129,326	16,944	236,437	21,962
Held-to-maturity securities	190,568	33,909	360,465	57,817
Total investment securities	337,190	80,597	632,652	147,349
Mortgage loans held for portfolio	52,023	50,848	104,815	99,424
Loans to other FHLBanks	341	112	823	112
Total interest income	2,114,270	276,824	3,495,882	444,501
Consolidated Obligations:
Discount Notes	768,292	83,780	1,315,733	94,582
Bonds	1,086,138	119,330	1,728,134	194,405
Total Consolidated Obligations	1,854,430	203,110	3,043,867	288,987
Deposits	12,227	1,760	23,945	1,939
Mandatorily redeemable capital stock	972	831	1,228	1,662
Other borrowings	1	0	1	0
Total interest expense	1,867,630	205,701	3,069,041	292,588
NET INTEREST INCOME	246,640	71,123	426,841	151,913
NON-INTEREST INCOME (LOSS):
Net gains (losses) on investment securities	(26,646)	(87,823)	(1,286)	(247,986)
Net gains (losses) on financial instruments held under fair value option	60,435	60,753	25,623	79,431
Net gains (losses) on derivatives	(4,363)	20,369	(12,279)	117,474
Other, net	7,493	6,801	14,483	13,988
Total non-interest income (loss)	36,919	100	26,541	(37,093)
NON-INTEREST EXPENSE:
Compensation and benefits	13,634	13,020	27,718	27,126
Other operating expenses	7,649	5,831	15,071	11,993
Finance Agency	2,744	1,650	5,488	3,447
Office of Finance	1,919	1,405	3,239	3,164
Voluntary housing contributions	14,394	1,238	14,816	1,561
Other	1,389	2,913	3,623	4,369
Total non-interest expense	41,729	26,057	69,955	51,660
INCOME BEFORE ASSESSMENTS	241,830	45,166	383,427	63,160
Affordable Housing Program assessments	24,281	4,599	38,466	6,482
NET INCOME	$ 217,549	$ 40,567	$ 344,961	$ 56,678

Statements of Comprehensive Inc

Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income	$ 217,549	$ 40,567	$ 344,961	$ 56,678
Other comprehensive income (loss) adjustments:
Net unrealized gains (losses) on available-for-sale securities	18,408	(9,988)	15,362	(47,760)
Pension and postretirement benefits	(98)	509	(196)	1,018
Total other comprehensive income (loss) adjustments	18,310	(9,479)	15,166	(46,742)
Comprehensive income (loss)	$ 235,859	$ 31,088	$ 360,127	$ 9,936

Statements of Capital

Statements of Capital - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 8,007,206	$ 4,272,899	$ 6,502,231	$ 3,795,901
Comprehensive Income (loss)	235,859	31,088	360,127	9,936
Proceeds from sale of capital stock, par value	520,862	1,432,185	3,629,524	3,343,863
Repurchase of capital stock, par value	(965,108)		(2,618,405)
Net shares reclassified to mandatorily redeemable capital stock, par value	(312,763)	(18,191)	(313,383)	(1,419,350)
Cash dividends on capital stock	(89,499)	(22,896)	(163,537)	(35,265)
Ending balance	$ 7,396,557	$ 5,695,085	$ 7,396,557	$ 5,695,085
Capital Stock Class B - Putable [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares, Issued beginning balance	66,054	30,005	51,507	24,900
Proceeds from sale of capital stock, shares	5,209	14,322	36,295	33,439
Repurchase of capital stock, shares	(9,651)		(26,184)
Net shares reclassified to mandatorily redeemable capital stock, shares	(3,128)	(182)	(3,134)	(14,194)
Shares, Issued ending balance	58,484	44,145	58,484	44,145
Beginning balance	$ 6,605,424	$ 3,000,535	$ 5,150,679	$ 2,490,016
Proceeds from sale of capital stock, par value	520,862	1,432,185	3,629,524	3,343,863
Repurchase of capital stock, par value	(965,108)		(2,618,405)
Net shares reclassified to mandatorily redeemable capital stock, par value	(312,763)	(18,191)	(313,383)	(1,419,350)
Ending balance	5,848,415	4,414,529	5,848,415	4,414,529
Retained Earnings, Unrestricted [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	868,665	783,592	840,774	783,072
Comprehensive Income (loss)	174,039	32,454	275,968	45,343
Cash dividends on capital stock	(89,499)	(22,896)	(163,537)	(35,265)
Ending balance	953,205	793,150	953,205	793,150
Retained Earnings, Restricted [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	585,601	512,941	560,118	509,719
Comprehensive Income (loss)	43,510	8,113	68,993	11,335
Ending balance	629,111	521,054	629,111	521,054
Retained Earnings, Total [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,454,266	1,296,533	1,400,892	1,292,791
Comprehensive Income (loss)	217,549	40,567	344,961	56,678
Cash dividends on capital stock	(89,499)	(22,896)	(163,537)	(35,265)
Ending balance	1,582,316	1,314,204	1,582,316	1,314,204
Accumulated Other Comprehensive Income (Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(52,484)	(24,169)	(49,340)	13,094
Comprehensive Income (loss)	18,310	(9,479)	15,166	(46,742)
Ending balance	$ (34,174)	$ (33,648)	$ (34,174)	$ (33,648)

Statements of Cash Flows

Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
OPERATING ACTIVITIES:
Net income	$ 344,961	$ 56,678
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization/(accretion)	347,249	79,455
Net change in derivative and hedging activities	36,237	889,605
Net change in fair value adjustments on trading securities	1,286	247,986
Net change in fair value adjustments on financial instruments held under fair value option	(25,623)	(79,431)
Other adjustments, net	491	460
Net change in:
Accrued interest receivable	(353,946)	(46,903)
Other assets	4,485	4,885
Accrued interest payable	338,261	40,285
Other liabilities	34,172	(7,193)
Total adjustments	382,612	1,129,149
Net cash provided by (used in) operating activities	727,573	1,185,827
Net change in:
Interest-bearing deposits	(659,209)	(639,919)
Securities purchased under agreements to resell	(11,685,950)	(1,244,990)
Federal funds sold	(8,754,000)	(4,665,000)
Premises, software, and equipment	(2,953)	(606)
Trading securities:
Proceeds from maturities and paydowns	250,038	2,975,051
Proceeds from sales	0	500,976
Available-for-sale securities:
Purchases	(933,804)	(2,965,670)
Held-to-maturity securities:
Proceeds from maturities and paydowns	930,667	873,299
Purchases	(1,460,737)	(2,706,277)
Advances:
Repaid	1,102,625,432	547,226,216
Originated	(1,122,599,388)	(580,273,996)
Mortgage loans held for portfolio:
Principal collected	295,371	708,097
Purchases	(138,398)	(547,855)
Net cash provided by (used in) investing activities	(42,132,931)	(40,760,674)
FINANCING ACTIVITIES:
Net change in deposits and pass-through reserves	163,655	(188,052)
Net proceeds from issuance of Consolidated Obligations:
Discount Notes	137,487,809	164,158,139
Bonds	80,740,832	30,512,545
Bonds transferred from other FHLBanks	249,999	0
Payments for maturing and retiring Consolidated Obligations:
Discount Notes	(130,182,033)	(136,942,872)
Bonds	(47,586,945)	(17,135,750)
Proceeds from issuance of capital stock	3,629,524	3,343,863
Payments for repurchase of capital stock	(2,618,405)	0
Payments for repurchase/redemption of mandatorily redeemable capital stock	(314,871)	(1,420,863)
Cash dividends paid	(163,537)	(35,265)
Net cash provided by (used in) financing activities	41,406,028	42,291,745
Net increase (decrease) in cash and due from banks	670	2,716,898
Cash and due from banks at beginning of the period	19,604	167,822
Cash and due from banks at end of the period	20,274	2,884,720
Supplemental Disclosures:
Interest paid	2,518,784	216,905
Affordable Housing Program payments, net	$ 12,409	$ 11,510

Background Information

Background Information	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations [Text Block]	Background Information The Federal Home Loan Bank of Cincinnati (the FHLB), a federally chartered corporation, is one of 11 District Federal Home Loan Banks (FHLBanks). The FHLBanks are government-sponsored enterprises (GSEs) that were organized under the Federal Home Loan Bank Act of 1932, as amended (FHLBank Act), to serve the public by enhancing the availability of credit for residential mortgages and targeted community development. The FHLB is regulated by the Federal Housing Finance Agency (Finance Agency). The FHLBanks are financial cooperatives that provide a readily available, competitively-priced source of funds to their member institutions.

Accounting Policies

Accounting Policies	6 Months Ended
	Jun. 30, 2023
Accounting Policies [Abstract]
Basis of Accounting [Text Block]	Basis of Presentation The accompanying interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The preparation of financial statements in accordance with GAAP requires management to make assumptions and estimates. These assumptions and estimates affect the reported amount of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of income and expenses. Actual results could differ from these estimates. The interim financial statements presented are unaudited, but they include all adjustments (consisting of only normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the financial condition, results of operations, and cash flows for such periods. These financial statements do not include all disclosures associated with annual financial statements and accordingly should be read in conjunction with the audited financial statements and notes included in the FHLB's Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission (SEC). Results for the six months ended June 30, 2023 are not necessarily indicative of operating results for the full year. The FHLB presents certain financial instruments, including derivative instruments and securities purchased under agreements to resell, on a net basis when it has a legal right of offset and all other requirements for netting are met (collectively referred to as the netting requirements). For these instruments, the FHLB has elected to offset its asset and liability positions, as well as cash collateral received or pledged, when it has met the netting requirements. The FHLB did not have any offsetting liabilities related to its securities purchased under agreements to resell for the periods presented. The net exposure for these financial instruments can change on a daily basis; therefore, there may be a delay between the time this exposure change is identified and additional collateral is requested, and the time this collateral is received or pledged. Likewise, there may be a delay for excess collateral to be returned. For derivative instruments that meet the requirements for netting, any excess cash collateral received or pledged is recognized as a derivative liability or derivative asset. Additional information regarding these agreements is provided in Note 6. Based on the fair value of the related collateral held, the securities purchased under agreements to resell were fully collateralized for the periods presented. For more information about the FHLB's investments in securities purchased under agreements to resell, see “Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies” in the FHLB's 2022 Annual Report on Form 10-K. Subsequent Events The FHLB has evaluated subsequent events for potential recognition or disclosure through the issuance of these financial statements and believes there have been no material subsequent events requiring additional disclosure or recognition in these financial statements.

Recently Issued Accounting Stan

Recently Issued Accounting Standards and Interpretations	6 Months Ended
	Jun. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Issued Accounting Standards and Interpretations [Text Block]	Recently Issued and Adopted Accounting Guidance Troubled Debt Restructurings and Vintage Disclosures. In March 2022, the Financial Accounting Standards Board (FASB) issued guidance that eliminates the accounting guidance for troubled debt restructurings by creditors that have adopted the current expected credit losses methodology while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors made to borrowers experiencing financial difficulty. The guidance became effective for the FHLB for the interim and annual periods beginning on January 1, 2023. The adoption of this guidance affected the FHLB's disclosures, but did not have any effect on the FHLB's financial condition, results of operations, or cash flows. Fair Value Hedging - Portfolio Layer Method. In March 2022, the FASB issued guidance that expands fair value hedging under the current last-of-layer method by allowing multiple hedged layers of a single closed portfolio under the method. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. Additionally, among other things, this guidance (1) expands the scope of the portfolio layer method to include nonprepayable assets, (2) specifies eligible hedging instruments in a single-layer hedge, (3) provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method, and (4) specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the closed portfolio. The guidance became effective for the FHLB for the interim and annual periods beginning on January 1, 2023. The FHLB adopted this guidance as of January 1, 2023 and it did not have any effect on the FHLB's financial condition, results of operations, and cash flows. The FHLB may elect the fair value hedging portfolio layer method in the future. Facilitation of the Effects of Reference Rate Reform on Financial Reporting, as amended. In March 2020, the FASB issued temporary, optional guidance to ease the potential burden in accounting for reference rate reform. The new guidance provides optional expedients and exceptions for applying GAAP to transactions affected by reference rate reform if certain criteria are met. The transactions primarily include (1) contract modifications, (2) hedging relationships, and (3) sale and/or transfer of debt securities classified as held-to-maturity. This guidance became effective for the FHLB beginning March 12, 2020 and may be applied through December 31, 2024. The FHLB elected optional practical expedients specific to fair value hedging relationships and contract modifications, which did not have a material effect, and may elect additional optional expedients in the future.

Investments

Investments	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Investments The FHLB makes short-term investments in interest-bearing deposits, securities purchased under agreements to resell, and Federal funds sold and may make other investments in debt securities, which are classified as either trading, available-for-sale, or held-to-maturity. Interest-Bearing Deposits, Securities Purchased under Agreements to Resell, and Federal Funds Sold The FHLB invests in interest-bearing deposits, securities purchased under agreements to resell, and Federal funds sold to provide liquidity. Interest-bearing deposits and Federal funds sold are generally transacted with counterparties that have received a credit rating of single-A or greater by a nationally recognized statistical rating organization (NRSRO). The FHLB’s internal ratings of these counterparties may differ from those issued by an NRSRO. Finance Agency regulations include a limit on the amount of unsecured credit the FHLB may extend to a counterparty. At June 30, 2023 and December 31, 2022, all investments in interest-bearing deposits and Federal funds sold were repaid or expected to be repaid according to their respective contractual terms. No allowance for credit losses was recorded for these assets at June 30, 2023 and December 31, 2022. Carrying values of interest-bearing deposits and Federal funds sold exclude accrued interest receivable of (in thousands) $9,627 and $1,993 as of June 30, 2023, and $5,524 and $1,299 as of December 31, 2022. Securities purchased under agreements to resell are short-term and are structured such that they are evaluated regularly to determine if the market value of the underlying securities decreases below the market value required as collateral (i.e., subject to collateral maintenance provisions). If so, the counterparty must place an equivalent amount of additional securities as collateral or remit an equivalent amount of cash, generally by the next business day. Based upon the collateral held as security and collateral maintenance provisions with counterparties, the FHLB determined that no allowance for credit losses was needed for its securities purchased under agreements to resell at June 30, 2023 and December 31, 2022. The carrying value of securities purchased under agreements to resell excludes accrued interest receivable of (in thousands) $1,793 and $232 as of June 30, 2023 and December 31, 2022, respectively. Debt Securities The FHLB invests in debt securities, which are classified as either trading, available-for-sale, or held-to-maturity. The FHLB is prohibited by Finance Agency regulations from purchasing certain higher-risk securities, such as equity securities and debt instruments that are not investment quality, other than certain investments targeted at low-income persons or communities. The FHLB is not required to divest instruments that experience credit deterioration after their purchase. Trading Securities Table 3.1 - Trading Securities by Major Security Types (in thousands) Fair Value June 30, 2023 December 31, 2022 Non-mortgage-backed securities (non-MBS): U.S. Treasury obligations $ 244,612 $ 491,464 GSE obligations 1,483,801 1,488,235 Total non-MBS 1,728,413 1,979,699 Mortgage-backed securities (MBS): U.S. obligation single-family 79 117 Total MBS 79 117 Total $ 1,728,492 $ 1,979,816 Table 3.2 - Net Gains (Losses) on Trading Securities (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Net unrealized gains (losses) on trading securities held at period end $ (27,033) $ (82,502) $ (2,693) $ (225,331) Net gains (losses) on trading securities sold/matured during the period 387 (5,321) 1,407 (22,655) Net gains (losses) on trading securities $ (26,646) $ (87,823) $ (1,286) $ (247,986) Available-for-Sale Securities Table 3.3 - Available-for-Sale Securities by Major Security Types (in thousands) June 30, 2023 Amortized Cost (1) Gross Gross Fair Non-MBS: U.S. Treasury obligations $ 7,446,523 $ 7,858 $ (2,721) $ 7,451,660 GSE obligations 117,165 741 (69) 117,837 Total non-MBS 7,563,688 8,599 (2,790) 7,569,497 MBS: GSE multi-family 2,162,623 2,680 (41,853) 2,123,450 Total MBS 2,162,623 2,680 (41,853) 2,123,450 Total $ 9,726,311 $ 11,279 $ (44,643) $ 9,692,947 December 31, 2022 Amortized Cost (1) Gross Gross Fair Non-MBS: U.S. Treasury obligations $ 7,202,715 $ 3,584 $ (12,028) $ 7,194,271 GSE obligations 117,555 726 (199) 118,082 Total non-MBS 7,320,270 4,310 (12,227) 7,312,353 MBS: GSE multi-family 1,360,221 — (40,809) 1,319,412 Total MBS 1,360,221 — (40,809) 1,319,412 Total $ 8,680,491 $ 4,310 $ (53,036) $ 8,631,765 (1) Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively. Table 3.4 summarizes the available-for-sale securities with gross unrealized losses, which are aggregated by major security type and length of time that individual securities have been in a continuous gross unrealized loss position. Table 3.4 - Available-for-Sale Securities in a Continuous Gross Unrealized Loss Position (in thousands) June 30, 2023 Less than 12 Months 12 Months or more Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Non-MBS: U.S. Treasury obligations $ 1,812,209 $ (1,225) $ 885,591 $ (1,496) $ 2,697,800 $ (2,721) GSE obligations 3,677 (7) 4,401 (62) 8,078 (69) Total non-MBS 1,815,886 (1,232) 889,992 (1,558) 2,705,878 (2,790) MBS: GSE multi-family MBS 872,603 (7,905) 1,013,714 (33,948) 1,886,317 (41,853) Total MBS 872,603 (7,905) 1,013,714 (33,948) 1,886,317 (41,853) Total $ 2,688,489 $ (9,137) $ 1,903,706 $ (35,506) $ 4,592,195 $ (44,643) December 31, 2022 Less than 12 Months 12 Months or more Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Non-MBS: U.S. Treasury obligations $ 4,624,895 $ (12,028) $ — $ — $ 4,624,895 $ (12,028) GSE obligations 9,887 (199) — — 9,887 (199) Total non-MBS 4,634,782 (12,227) — — 4,634,782 (12,227) MBS: GSE multi-family MBS 959,421 (22,519) 359,991 (18,290) 1,319,412 (40,809) Total MBS 959,421 (22,519) 359,991 (18,290) 1,319,412 (40,809) Total $ 5,594,203 $ (34,746) $ 359,991 $ (18,290) $ 5,954,194 $ (53,036) Table 3.5 - Available-for-Sale Securities by Contractual Maturity (in thousands) June 30, 2023 December 31, 2022 Year of Maturity Amortized Fair Amortized Fair Non-MBS: Due in 1 year or less $ — $ — $ — $ — Due after 1 year through 5 years 4,824,447 4,828,548 2,576,167 2,577,121 Due after 5 years through 10 years 2,729,095 2,730,862 4,734,017 4,725,345 Due after 10 years 10,146 10,087 10,086 9,887 Total non-MBS 7,563,688 7,569,497 7,320,270 7,312,353 MBS (1) 2,162,623 2,123,450 1,360,221 1,319,412 Total $ 9,726,311 $ 9,692,947 $ 8,680,491 $ 8,631,765 (1) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees. Table 3.6 - Interest Rate Payment Terms of Available-for-Sale Securities (in thousands) June 30, 2023 December 31, 2022 Amortized cost of non-MBS: Fixed-rate $ 7,563,688 $ 7,320,270 Total amortized cost of non-MBS 7,563,688 7,320,270 Amortized cost of MBS: Fixed-rate 2,162,623 1,360,221 Total amortized cost of MBS 2,162,623 1,360,221 Total $ 9,726,311 $ 8,680,491 The FHLB had no sales of securities out of its available-for-sale portfolio for the six months ended June 30, 2023 or 2022. Held-to-Maturity Securities Table 3.7 - Held-to-Maturity Securities by Major Security Types (in thousands) June 30, 2023 Amortized Cost (1) Gross Unrecognized Holding Gross Unrecognized Holding Losses Fair Value Non-MBS: GSE obligations $ 47,749 $ 4 $ — $ 47,753 Total non-MBS 47,749 4 — 47,753 MBS: U.S. obligation single-family 1,172,846 — (147,234) 1,025,612 GSE single-family 2,314,864 2,239 (106,383) 2,210,720 GSE multi-family 12,298,225 1,014 (66,666) 12,232,573 Total MBS 15,785,935 3,253 (320,283) 15,468,905 Total $ 15,833,684 $ 3,257 $ (320,283) $ 15,516,658 December 31, 2022 Amortized Cost (1) Gross Unrecognized Holding Gross Unrecognized Holding Losses Fair Value Non-MBS: U.S. Treasury obligations $ 47,405 $ — $ (51) $ 47,354 Total non-MBS 47,405 — (51) 47,354 MBS: U.S. obligation single-family 1,232,001 — (147,423) 1,084,578 GSE single-family 1,632,099 4,074 (101,140) 1,535,033 GSE multi-family 12,392,854 598 (77,374) 12,316,078 Total MBS 15,256,954 4,672 (325,937) 14,935,689 Total $ 15,304,359 $ 4,672 $ (325,988) $ 14,983,043 (1) Carrying value equals amortized cost. Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of (in thousands) $60,752 and $48,937 as of June 30, 2023 and December 31, 2022, respectively. Table 3.8 - Held-to-Maturity Securities by Contractual Maturity (in thousands) June 30, 2023 December 31, 2022 Year of Maturity Amortized Cost (1) Fair Value Amortized Cost (1) Fair Value Non-MBS: Due in 1 year or less $ 47,749 $ 47,753 $ 47,405 $ 47,354 Due after 1 year through 5 years — — — — Due after 5 years through 10 years — — — — Due after 10 years — — — — Total non-MBS 47,749 47,753 47,405 47,354 MBS (2) 15,785,935 15,468,905 15,256,954 14,935,689 Total $ 15,833,684 $ 15,516,658 $ 15,304,359 $ 14,983,043 (1) Carrying value equals amortized cost. (2) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees. Table 3.9 - Interest Rate Payment Terms of Held-to-Maturity Securities (in thousands) June 30, 2023 December 31, 2022 Amortized cost of non-MBS: Fixed-rate $ 47,749 $ 47,405 Total amortized cost of non-MBS 47,749 47,405 Amortized cost of MBS: Fixed-rate 3,342,181 2,709,494 Variable-rate 12,443,754 12,547,460 Total amortized cost of MBS 15,785,935 15,256,954 Total $ 15,833,684 $ 15,304,359 For the six months ended June 30, 2023 and 2022, the FHLB did not sell any held-to-maturity securities. Allowance for Credit Losses on Available-for-Sale and Held-to-Maturity Securities The FHLB evaluates available-for-sale and held-to-maturity investment securities for credit losses on a quarterly basis. The FHLB’s available-for-sale and held-to-maturity securities are U.S. Treasury obligations, GSE obligations, and MBS issued by Fannie Mae, Freddie Mac and Ginnie Mae that are backed by single-family or multi-family mortgage loans. The FHLB only purchases securities considered investment quality. At June 30, 2023 and December 31, 2022, all available-for-sale and held-to-maturity securities were rated single-A, or above, by an NRSRO, based on the lowest long-term credit rating for each security owned by the FHLB. The FHLB’s internal ratings of these securities may differ from those obtained from an NRSRO. The FHLB evaluates individual available-for-sale securities for impairment by comparing the security’s fair value to its amortized cost. Impairment may exist when the fair value of the investment is less than its amortized cost (i.e., in an unrealized loss position). At June 30, 2023 and December 31, 2022, certain available-for-sale securities were in an unrealized loss position. These losses are considered temporary as the FHLB expects to recover the entire amortized cost basis on these available-for-sale investment securities and does not intend to sell these securities nor considers it more likely than not that it will be required to sell these securities before the anticipated recovery of each security's remaining amortized cost basis. Further, the FHLB has not experienced any payment defaults on the instruments and all of these securities are highly-rated. In the case of U.S. obligations, they carry an explicit government guarantee. In the case of GSE securities, they are purchased under the assumption that the issuers' obligation to pay principal and interest on those securities will be honored, taking into account their status as GSEs. As a result, no allowance for credit losses was recorded on these available-for-sale securities at June 30, 2023 and December 31, 2022. The FHLB evaluates its held-to-maturity securities for impairment on a collective, or pooled basis, unless an individual assessment is deemed necessary because the securities do not possess similar risk characteristics. As of June 30, 2023 and December 31, 2022, the FHLB had not established an allowance for credit loss on any held-to-maturity securities because the securities: (1) were all highly-rated and/or had short remaining terms to maturity, (2) had not experienced, nor did the FHLB expect, any payment default on the instruments, (3) in the case of U.S. obligations, the securities carry an explicit government

Advances

Advances	6 Months Ended
	Jun. 30, 2023
Advances [Abstract]
Advances [Text Block]	Advances The following table presents Advance redemptions by contractual maturity, including index-amortizing Advances, which are presented according to their predetermined amortization schedules. Table 4.1 - Advances by Redemption Term (dollars in thousands) June 30, 2023 December 31, 2022 Redemption Term Amount Weighted Average Interest Amount Weighted Average Interest Overdrawn demand deposit accounts $ 1,606 5.58 % $ — — % Due in 1 year or less 60,453,871 5.29 51,491,191 4.36 Due after 1 year through 2 years 10,743,878 4.88 5,904,109 3.69 Due after 2 years through 3 years 5,854,782 4.99 2,969,160 4.01 Due after 3 years through 4 years 4,007,375 3.64 2,418,222 4.14 Due after 4 years through 5 years 4,440,625 3.94 2,462,903 3.28 Thereafter 1,899,839 2.49 2,182,434 2.29 Total principal amount 87,401,976 5.02 67,428,019 4.17 Commitment fees (87) (90) Discounts (1,740) (2,073) Fair value hedging adjustments (508,372) (406,255) Fair value option valuation adjustments and accrued interest (1,307) (46) Total (1) $ 86,890,470 $ 67,019,555 (1) Carrying values exclude accrued interest receivable of (in thousands) $486,408 and $149,255 as of June 30, 2023 and December 31, 2022, respectively. The FHLB offers certain fixed- and variable-rate Advances to members that may be prepaid on specified dates (call dates) without incurring prepayment or termination fees (callable Advances). Other Advances may only be prepaid subject to a prepayment fee paid to the FHLB that makes the FHLB financially indifferent to the prepayment of the Advance. Table 4.2 - Advances by Redemption Term or Next Call Date (in thousands) Redemption Term or Next Call Date June 30, 2023 December 31, 2022 Overdrawn demand deposit accounts $ 1,606 $ — Due in 1 year or less 66,454,371 54,497,542 Due after 1 year through 2 years 7,743,378 5,901,058 Due after 2 years through 3 years 2,877,402 1,465,860 Due after 3 years through 4 years 4,007,375 918,222 Due after 4 years through 5 years 4,418,005 2,462,903 Thereafter 1,899,839 2,182,434 Total principal amount $ 87,401,976 $ 67,428,019 The FHLB also offers putable Advances. With a putable Advance, the FHLB effectively purchases put options from the member that allows the FHLB to terminate the Advance at predetermined dates. The FHLB normally would exercise its put option when interest rates increase relative to contractual rates. Table 4.3 - Advances by Redemption Term or Next Put Date for Putable Advances (in thousands) Redemption Term or Next Put Date June 30, 2023 December 31, 2022 Overdrawn demand deposit accounts $ 1,606 $ — Due in 1 year or less 61,073,871 52,461,191 Due after 1 year through 2 years 10,773,878 5,929,109 Due after 2 years through 3 years 5,909,782 2,989,160 Due after 3 years through 4 years 4,007,375 2,418,222 Due after 4 years through 5 years 4,415,625 2,382,903 Thereafter 1,219,839 1,247,434 Total principal amount $ 87,401,976 $ 67,428,019 Table 4.4 - Advances by Interest Rate Payment Terms (in thousands) June 30, 2023 December 31, 2022 Total fixed-rate (1) $ 61,028,690 $ 51,461,334 Total variable-rate (1) 26,373,286 15,966,685 Total principal amount $ 87,401,976 $ 67,428,019 (1) Payment terms based on current interest rate terms, which reflect any option exercises or rate conversions that have occurred subsequent to the related Advance issuance. Credit Risk Exposure and Security Terms The FHLB manages its credit exposure to Advances through an integrated approach that includes establishing a credit limit for each borrower and ongoing review of each borrower's financial condition, coupled with collateral and lending policies to limit risk of loss while balancing borrowers' needs for a reliable source of funding. In addition, the FHLB lends to eligible borrowers in accordance with federal law and Finance Agency regulations, which require the FHLB to obtain sufficient collateral to fully secure credit products. Under these regulations, collateral eligible to secure new or renewed Advances includes: ▪ one-to-four family mortgage loans (delinquent for no more than 60 days) and multi-family mortgage loans (delinquent for no more than 30 days) and securities representing such mortgages; ▪ loans and securities issued and insured, or guaranteed by the U.S. government or any U.S. government agency (for example, mortgage-backed securities issued or guaranteed by Fannie Mae, Freddie Mac, or Ginnie Mae); ▪ cash or deposits in the FHLB; ▪ certain other collateral that is real estate-related, provided that the collateral has a readily ascertainable value, can be reliably discounted to account for liquidation and other risks, can be liquidated in due course and the FHLB can perfect a security interest in it; and ▪ certain qualifying securities representing undivided equity interests in eligible Advance collateral. Residential mortgage loans are the principal form of collateral for Advances. The estimated value of the collateral required to secure each member's credit products is calculated by applying collateral discounts, or haircuts, to the value of the collateral. In addition, community financial institutions are eligible to utilize expanded statutory collateral provisions for small business and agribusiness loans. The FHLB's capital stock owned by its member borrowers is also pledged as collateral. Collateral arrangements and a member’s borrowing capacity vary based on the financial condition and performance of the institution, the types of collateral pledged and the overall quality of those assets. The FHLB can also require additional or substitute collateral to protect its security interest. The FHLB also has policies and procedures for validating the reasonableness of its collateral valuations and makes changes to its collateral guidelines, as necessary, based on current market conditions. In addition, collateral verifications and reviews are performed by the FHLB based on the risk profile of the borrower. Management of the FHLB believes that these policies effectively manage the FHLB's credit risk from Advances. Members experiencing financial difficulties are subject to FHLB-performed “stress tests” to evaluate the impact of poorly performing assets on the member’s capital and loss reserve positions. Depending on the results of these tests, a member may be allowed to maintain pledged loan assets in its custody, may be required to deliver those loans into the custody of the FHLB or its agent, or may be required to provide details on those loans to facilitate an estimate of their fair value. The FHLB perfects its security interest in all pledged collateral. The FHLBank Act affords any security interest granted to the FHLB by a member priority over the claims or rights of any other party except for claims or rights of a third party that would otherwise be entitled to priority under applicable law and that are held by a bona fide purchaser for value or by a secured party holding a prior perfected security interest. Using a risk-based approach, the FHLB considers the payment status, collateralization levels, and borrower's financial condition to be indicators of credit quality for its credit products. At June 30, 2023 and December 31, 2022, the FHLB did not have any Advances that were past due, in non-accrual status or considered impaired. In addition, there were no modifications of Advances with borrowers experiencing financial difficulty during the six months ended June 30, 2023 or 2022. At June 30, 2023 and December 31, 2022, the FHLB had rights to collateral on a member-by-member basis with an estimated value in excess of its outstanding extensions of credit. Based upon the collateral held as security, its credit extension and collateral policies and the repayment history on Advances, the FHLB did not expect any credit losses on Advances as of June 30, 2023 and, therefore, no allowance for credit losses on Advances was recorded. For the same reasons, the FHLB did not record any allowance for credit losses on Advances at December 31, 2022. Advance Concentrations Table 4.5 - Borrowers Holding Five Percent or more of Total Advances, Including Any Known Affiliates that are Members of the FHLB (dollars in millions) June 30, 2023 December 31, 2022 Principal % of Total Principal Amount of Advances Principal % of Total Principal Amount of Advances U.S. Bank, N.A. $ 20,500 23 % U.S. Bank, N.A. $ 19,000 28 % Keybank, N.A. 15,339 18 Keybank, N.A. 11,344 17 The Huntington National Bank 6,501 7 Third Federal Savings and Loan Association 4,826 7 Third Federal Savings and Loan Association 5,428 6 Fifth Third Bank 4,301 6 Fifth Third Bank 5,301 6 Nationwide Life Insurance Company 3,136 5 Total $ 53,069 60 % Total $ 42,607 63 %

Mortgage Loans

Mortgage Loans	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Financing Receivables [Text Block]	Mortgage Loans Total mortgage loans held for portfolio represent residential mortgage loans under the Mortgage Purchase Program (MPP) that the FHLB's members originate, credit enhance, and then sell to the FHLB. The FHLB does not service any of these loans. Table 5.1 - Mortgage Loans Held for Portfolio (in thousands) June 30, 2023 December 31, 2022 Fixed rate medium-term single-family mortgage loans (1) $ 487,009 $ 530,956 Fixed rate long-term single-family mortgage loans (2) 6,359,666 6,475,525 Total unpaid principal balance 6,846,675 7,006,481 Premiums 145,964 151,756 Discounts (2,353) (2,246) Hedging basis adjustments (3) 6,238 6,819 Total mortgage loans held for portfolio (4) 6,996,524 7,162,810 Allowance for credit losses on mortgage loans (338) (301) Mortgage loans held for portfolio, net $ 6,996,186 $ 7,162,509 (1) Medium-term is defined as a term of 15 years or less. (2) Long-term is defined as a term of greater than 15 years up to 30 years. (3) Represents the unamortized balance of the mortgage purchase commitments' market values at the time of settlement. The market value of the commitment is included in the basis of the mortgage loan and amortized accordingly. (4) Excludes accrued interest receivable of (in thousands) $21,564 and $21,846 at June 30, 2023 and December 31, 2022, respectively. Table 5.2 - Mortgage Loans Held for Portfolio by Collateral/Guarantee Type (in thousands) June 30, 2023 December 31, 2022 Conventional mortgage loans $ 6,741,813 $ 6,893,552 Federal Housing Administration (FHA) mortgage loans 104,862 112,929 Total unpaid principal balance $ 6,846,675 $ 7,006,481 Table 5.3 - Members, Including Any Known Affiliates that are Members of the FHLB, and Former Members Selling Five Percent or more of Total Unpaid Principal (dollars in millions) June 30, 2023 December 31, 2022 Principal % of Total Principal % of Total Union Savings Bank $ 1,576 23 % Union Savings Bank $ 1,651 24 % FirstBank 728 11 FirstBank 730 10 Guardian Savings Bank FSB 421 6 Guardian Savings Bank FSB 438 6 The Huntington National Bank 344 5 Credit Risk Exposure The FHLB manages credit risk exposure for conventional mortgage loans primarily though conservative underwriting and purchasing loans with characteristics consistent with favorable expected credit performance and by applying various credit enhancements. Credit Enhancements. The conventional mortgage loans under the MPP are primarily supported by some combination of credit enhancements (primary mortgage insurance (PMI) and the Lender Risk Account (LRA), including pooled LRA for those members participating in an aggregated MPP pool). These credit enhancements apply after a homeowner’s equity is exhausted. The LRA is funded by the FHLB upfront as a portion of the purchase proceeds. The LRA is recorded in other liabilities in the Statement of Condition. Excess funds from the LRA are released to the member in accordance with the terms of the Master Commitment Contract, which is typically after five years, subject to performance of the related loan pool. The LRA established for a pool of loans is limited to only covering losses of that specific pool of loans. Because the FHA makes an explicit guarantee on FHA mortgage loans, the FHLB does not require any credit enhancements on these loans beyond primary mortgage insurance. Table 5.4 - Changes in the LRA (in thousands) Six Months Ended June 30, 2023 LRA at beginning of year $ 244,254 Additions 1,626 Claims (160) Scheduled distributions (3,629) LRA at end of period $ 242,091 Payment Status of Mortgage Loans. The key credit quality indicator for conventional mortgage loans is payment status, which allows the FHLB to monitor borrower performance. Past due loans are those where the borrower has failed to make a full payment of principal and interest within one month of its due date. Table 5.5 presents the payment status of conventional mortgage loans. Table 5.5 - Credit Quality Indicator of Conventional Mortgage Loans (in thousands) June 30, 2023 Origination Year Payment status, at amortized cost: Prior to 2019 2019 to June 30, 2023 Total Past due 30-59 days $ 17,382 $ 7,806 $ 25,188 Past due 60-89 days 3,769 1,080 4,849 Past due 90 days or more 7,592 1,901 9,493 Total past due mortgage loans 28,743 10,787 39,530 Current mortgage loans 2,463,415 4,387,969 6,851,384 Total conventional mortgage loans $ 2,492,158 $ 4,398,756 $ 6,890,914 December 31, 2022 Origination Year Payment status, at amortized cost: Prior to 2018 2018 to 2022 Total Past due 30-59 days $ 12,643 $ 14,440 $ 27,083 Past due 60-89 days 3,303 1,751 5,054 Past due 90 days or more 8,251 3,682 11,933 Total past due mortgage loans 24,197 19,873 44,070 Current mortgage loans 2,404,090 4,600,889 7,004,979 Total conventional mortgage loans $ 2,428,287 $ 4,620,762 $ 7,049,049 Other delinquency statistics include loans in process of foreclosure, serious delinquency rates, loans past due 90 days or more and still accruing interest, and non-accrual loans. Table 5.6 presents other delinquency statistics of mortgage loans. Table 5.6 - Other Delinquency Statistics (dollars in thousands) June 30, 2023 Amortized Cost: Conventional MPP Loans FHA Loans Total In process of foreclosure (1) $ 5,774 $ 221 $ 5,995 Serious delinquency rate (2) 0.14 % 0.80 % 0.15 % Past due 90 days or more still accruing interest (3) $ 8,998 $ 844 $ 9,842 Loans on non-accrual status (4) $ 1,282 $ — $ 1,282 December 31, 2022 Amortized Cost: Conventional MPP Loans FHA Loans Total In process of foreclosure (1) $ 7,206 $ 361 $ 7,567 Serious delinquency rate (2) 0.18 % 1.32 % 0.19 % Past due 90 days or more still accruing interest (3) $ 11,369 $ 1,500 $ 12,869 Loans on non-accrual status (4) $ 1,423 $ — $ 1,423 (1) Includes loans where the decision of foreclosure or a similar alternative such as pursuit of deed-in-lieu has been reported. (2) Loans that are 90 days or more past due or in the process of foreclosure (including past due or current loans in the process of foreclosure) expressed as a percentage of the total loan portfolio class. (3) Each conventional loan past due 90 days or more still accruing interest is on a schedule/scheduled monthly settlement basis and contains one or more credit enhancements. Loans that are well secured and in the process of collection as a result of remaining credit enhancements and schedule/scheduled settlement are not placed on non-accrual status. (4) At June 30, 2023 and December 31, 2022, (in thousands) $986 and $971, respectively, of conventional MPP loans on non-accrual status do not have a related allowance because these loans were either previously charged off to their expected recoverable value and/or the fair value of the underlying collateral, including any credit enhancements, is greater than the amortized cost of the loans. The FHLB did not have any real estate owned at June 30, 2023 or December 31, 2022. Mortgage Loan Modifications . Under certain circumstances, the FHLB offers loan modifications within its MPP. Most commonly, loan modifications consist of capitalization of any past due interest with a corresponding increase in unpaid principal and a recast of the monthly principal and interest payment. Less frequently, loan modifications may include interest rate reductions, term extensions, balloon payments, or a combination of these types. The amortized cost basis of mortgage loans modified with borrowers experiencing financial difficulty during the three and six months ended June 30, 2023 was (in thousands) $1,543 and $2,878, respectively. The financial effect of the modifications was not material to the FHLB’s financial condition or results of operations. Evaluation of Current Expected Credit Losses Mortgage Loans - FHA. The FHLB invests in fixed-rate mortgage loans secured by one-to-four-family residential properties insured by the FHA. The FHLB expects to recover any losses from such loans from the FHA. Any losses from these loans that are not recovered from the FHA would be caused by a claim rejection by the FHA and, as such, would be recoverable from the selling participating financial institutions. Therefore, the FHLB only has credit risk for these loans if the seller or servicer fails to pay for losses not covered by the FHA insurance, but in such instance, the FHLB would have recourse against the servicer for such failure. As a result, the FHLB did not record an allowance for credit losses on its FHA insured mortgage loans. Furthermore, due to the insurance, none of these mortgage loans have been placed on non-accrual status. Mortgage Loans - Conventional MPP. Conventional loans are evaluated collectively when similar risk characteristics exist; loans that do not share risk characteristics with other pools are removed from the collective evaluation and evaluated for expected credit losses on an individual basis. For loans with similar risk characteristics, the FHLB determines the allowance for credit losses through analyses that include considering various loan portfolio and collateral-related characteristics, such as past performance, current conditions, and reasonable and supportable forecasts of expected economic conditions. The FHLB uses a model that employs a variety of methods, such as projected cash flows to estimate expected credit losses over the life of the loans. This model relies on a number of inputs, such as both current and forecasted property values and interest rates, as well as historical borrower behavior experience. The FHLB’s calculation of expected credit losses includes a forecast of home prices over the entire contractual terms of its conventional loans rather than a reversion to historical home price trends after an initial forecast period. The FHLB also incorporates associated credit enhancements to determine estimated expected credit losses. Certain conventional loans may be evaluated for credit losses by using the practical expedient for collateral dependent assets. A mortgage loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be substantially through the sale of the underlying collateral. The FHLB may estimate the fair value of this collateral by either applying an appropriate loss severity rate, using third-party estimates, or using a property valuation model. The expected credit loss of a collateral dependent mortgage loan is equal to the difference between the amortized cost of the loan and the estimated fair value of the collateral, less estimated selling costs. The FHLB will either reserve for these estimated losses or record a direct charge-off of the loan balance, if certain triggering criteria are met. Expected recoveries of prior charge-offs, if any, are included in the allowance for credit losses. The FHLB also assesses other qualitative factors in its estimation of loan losses for the collectively evaluated population. This amount represents a subjective management judgment, based on facts and circumstances that exist as of the reporting date, which is intended to cover other expected losses that may not otherwise be captured in the methodology described above. Allowance for Credit Losses on Conventional Mortgage Loans. At June 30, 2023 and December 31, 2022 the FHLB's allowance for credit losses on its conventional mortgage loans held for portfolio was (in thousands) $338 and $301, respectively.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities [Text Block]	Derivatives and Hedging Activities Nature of Business Activity The FHLB is exposed to interest rate risk primarily from the effect of changes in interest rates. The goal of the FHLB's interest-rate risk management strategy is not to eliminate interest-rate risk, but to manage it within appropriate limits. To mitigate the risk of loss, the FHLB has established policies and procedures, which include guidelines on the amount of exposure to interest rate changes it is willing to accept. In addition, the FHLB monitors the risk to its interest income, net interest margin and average maturity of interest-earning assets and interest-bearing liabilities. The FHLB uses derivatives when they are considered to be the most cost-effective alternative to achieve the FHLB's financial and risk management objectives. See Note 7 - Derivatives and Hedging Activities in the FHLB's 2022 Annual Report on Form 10-K for additional information on the FHLB's derivative transactions. The FHLB transacts its derivatives with counterparties that are large banks and major broker-dealers. Some of these banks and broker-dealers or their affiliates buy, sell, and distribute Consolidated Obligations. Derivative transactions may be executed either with a counterparty, referred to as uncleared derivatives, or cleared through a Futures Commission Merchant (i.e., clearing agent) with a Derivative Clearing Organization, referred to as cleared derivatives. The FHLB is not a derivative dealer and does not trade derivatives for short-term profit. Financial Statement Effect and Additional Financial Information The notional amount of derivatives serves as a factor in determining periodic interest payments or cash flows received and paid. The notional amount reflects the FHLB's involvement in the various classes of financial instruments and represents neither the actual amounts exchanged nor the overall exposure of the FHLB to credit and market risk. The risks of derivatives only can be measured meaningfully on a portfolio basis that takes into account the counterparties, the types of derivatives, the items being hedged and any offsets between the derivatives and the items being hedged. Table 6.1 summarizes the notional amount and fair value of derivative instruments and total derivative assets and liabilities. Total derivative assets and liabilities include the effect of netting adjustments and cash collateral. For purposes of this disclosure, the derivative values include the fair value of derivatives and the related accrued interest. Table 6.1 - Fair Value of Derivative Instruments (in thousands) June 30, 2023 Notional Amount of Derivatives Derivative Assets Derivative Liabilities Derivatives designated as fair value hedging instruments: Interest rate swaps $ 28,677,397 $ 10,375 $ 52,849 Derivatives not designated as hedging instruments: Interest rate swaps 36,291,236 114,688 36,080 Interest rate swaptions 425,000 4,391 — Mortgage delivery commitments 65,176 37 152 Total derivatives not designated as hedging instruments 36,781,412 119,116 36,232 Total derivatives before adjustments $ 65,458,809 129,491 89,081 Netting adjustments and cash collateral (1) 572,267 (88,929) Total derivative assets and total derivative liabilities $ 701,758 $ 152 December 31, 2022 Notional Amount of Derivatives Derivative Assets Derivative Liabilities Derivatives designated as fair value hedging instruments: Interest rate swaps $ 21,577,007 $ 37,175 $ 32,630 Derivatives not designated as hedging instruments: Interest rate swaps 28,840,270 5,839 55,327 Interest rate swaptions 355,000 7,766 — Mortgage delivery commitments 14,291 12 88 Total derivatives not designated as hedging instruments 29,209,561 13,617 55,415 Total derivatives before adjustments $ 50,786,568 50,792 88,045 Netting adjustments and cash collateral (1) 439,768 (87,585) Total derivative assets and total derivative liabilities $ 490,560 $ 460 (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively. Table 6.2 presents the impact of qualifying fair value hedging relationships on net interest income as well as the total interest income (expense) by product. Table 6.2 - Impact of Fair Value Hedging Relationships on Net Interest Income (in thousands) Three Months Ended June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 1,439,257 $ 129,326 $ (1,086,138) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ 84,234 $ 85,335 $ (8,064) Gain (loss) on derivatives 255,292 208,035 (5,913) Gain (loss) on hedged items (259,956) (217,129) 6,372 Effect on net interest income $ 79,570 $ 76,241 $ (7,605) Three Months Ended June 30, 2022 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 120,653 $ 16,944 $ (119,330) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ (12,694) $ (10,392) $ 2,289 Gain (loss) on derivatives 111,768 204,402 (11,999) Gain (loss) on hedged items (110,048) (205,960) 12,046 Effect on net interest income $ (10,974) $ (11,950) $ 2,336 Six Months Ended June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 2,335,866 $ 236,437 $ (1,728,134) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ 141,883 $ 155,696 $ (15,923) Gain (loss) on derivatives 93,061 (11,659) 6,140 Gain (loss) on hedged items (102,117) (7,857) (5,580) Effect on net interest income $ 132,827 $ 136,180 $ (15,363) Six Months Ended June 30, 2022 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 165,971 $ 21,962 $ (194,405) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ (34,389) $ (23,926) $ 2,705 Gain (loss) on derivatives 334,259 541,563 (22,778) Gain (loss) on hedged items (330,223) (543,229) 22,740 Effect on net interest income $ (30,353) $ (25,592) $ 2,667 Table 6.3 presents the cumulative basis adjustments on hedged items designated as fair value hedges and the related amortized cost of the hedged items. Table 6.3 - Cumulative Basis Adjustments for Fair Value Hedges (in thousands) June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Amortized cost of hedged asset or liability (1) $ 16,177,509 $ 9,704,490 $ 1,266,539 Fair value hedging adjustments Basis adjustments for active hedging relationships included in amortized cost $ (509,074) $ (996,983) $ (36,165) Basis adjustments for discontinued hedging relationships included in amortized cost 702 14,102 — Total amount of fair value hedging basis adjustments $ (508,372) $ (982,881) $ (36,165) December 31, 2022 Advances Available-for-Sale Securities Consolidated Bonds Amortized cost of hedged asset or liability (1) $ 10,199,624 $ 8,668,634 $ 1,286,881 Fair value hedging adjustments Basis adjustments for active hedging relationships included in amortized cost $ (407,137) $ (989,810) $ (41,745) Basis adjustments for discontinued hedging relationships included in amortized cost 882 13,932 — Total amount of fair value hedging basis adjustments $ (406,255) $ (975,878) $ (41,745) (1) Includes only the portion of amortized cost representing the hedged items in fair value hedging relationships. Table 6.4 presents net gains (losses) recorded in non-interest income (loss) on derivatives not designated as hedging instruments. Table 6.4 - Net Gains (Losses) Recorded in Non-interest Income (Loss) on Derivatives Not Designated as Hedging Instruments (in thousands) Three Months Ended June 30, 2023 2022 Derivatives not designated as hedging instruments: Economic hedges: Interest rate swaps $ 2,398 $ 16,596 Interest rate swaptions (526) 5,470 Net interest settlements (4,932) (267) Mortgage delivery commitments (200) (1,441) Total net gains (losses) related to derivatives not designated as hedging instruments (3,260) 20,358 Price alignment amount (1) (1,103) 11 Net gains (losses) on derivatives $ (4,363) $ 20,369 Six Months Ended June 30, 2023 2022 Derivatives not designated as hedging instruments: Economic hedges: Interest rate swaps $ 4,984 $ 149,642 Interest rate swaptions (5,027) 6,558 Net interest settlements (9,941) (31,441) Mortgage delivery commitments (73) (7,324) Total net gains (losses) related to derivatives not designated as hedging instruments (10,057) 117,435 Price alignment amount (1) (2,222) 39 Net gains (losses) on derivatives $ (12,279) $ 117,474 (1) This amount is for derivatives for which variation margin is characterized as a daily settled contract. Credit Risk on Derivatives The FHLB is subject to credit risk given the risk of non-performance by counterparties to its derivative transactions and manages credit risk through credit analyses of derivative counterparties, collateral requirements and adherence to the requirements set forth in its policies, U.S. Commodity Futures Trading Commission regulations, and Finance Agency regulations. For uncleared derivatives, the degree of credit risk depends on the extent to which master netting arrangements are included in these contracts to mitigate this risk. The FHLB requires collateral agreements on its uncleared derivatives with the collateral delivery threshold set to zero. For cleared derivatives, the Clearinghouse is the FHLB's counterparty. The Clearinghouse notifies the clearing agent of the required initial and variation margin and the clearing agent in turn notifies the FHLB. The FHLB utilizes two Clearinghouses for all cleared derivative transactions, LCH Ltd. and CME Clearing. At both Clearinghouses, variation margin is characterized as daily settlement payments, while initial margin is considered to be collateral. The requirement that the FHLB post initial and variation margin through the clearing agent, to the Clearinghouse, exposes the FHLB to credit risk if the clearing agent or the Clearinghouse fails to meet its obligations. The use of cleared derivatives is intended to mitigate credit risk exposure because a central counterparty is substituted for individual counterparties and collateral/payments for changes in the value of cleared derivatives is posted daily through a clearing agent. On the Statements of Cash Flows, the variation margin cash payments, or daily settlement payments, are included in net change in derivative and hedging activities, as an operating activity. For cleared derivatives, the Clearinghouse determines initial margin requirements and generally credit ratings are not factored into the initial margin. However, clearing agents may require additional initial margin to be posted based on credit considerations, including, but not limited to, credit rating downgrades. At June 30, 2023, the FHLB was not required to post additional initial margin by its clearing agents based on credit considerations. Offsetting of Derivative Assets and Derivative Liabilities The FHLB presents derivative instruments, related cash collateral received or pledged, and associated accrued interest, on a net basis by clearing agent and/or by counterparty when it has met the netting requirements. The FHLB has analyzed the enforceability of offsetting rights incorporated in its cleared derivative transactions, and it expects that the exercise of those offsetting rights by a non-defaulting party under these transactions would be upheld under applicable law upon an event of default, including bankruptcy, insolvency, or similar proceeding involving the Clearinghouse or the FHLB's clearing agent, or both. Based on this analysis, the FHLB presents a net derivative receivable or payable for all of its transactions through a particular clearing agent with a particular Clearinghouse. Table 6.5 presents separately the fair value of derivative instruments meeting or not meeting netting requirements, including the related collateral. At June 30, 2023 and December 31, 2022, the FHLB did not receive or pledge any non-cash collateral. Any over-collateralization under an individual clearing agent and/or counterparty level is not included in the determination of the net unsecured amount. Table 6.5 - Offsetting of Derivative Assets and Derivative Liabilities (in thousands) June 30, 2023 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 123,551 $ (107,449) $ 37 $ 16,139 Cleared 5,903 679,716 — 685,619 Total $ 701,758 Derivative Liabilities: Uncleared $ 63,901 $ (63,901) $ 152 $ 152 Cleared 25,028 (25,028) — — Total $ 152 December 31, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 19,195 $ (12,600) $ 12 $ 6,607 Cleared 31,585 452,368 — 483,953 Total $ 490,560 Derivative Liabilities: Uncleared $ 83,896 $ (83,524) $ 88 $ 460 Cleared 4,061 (4,061) — — Total $ 460 (1) Includes mortgage delivery commitments that are not subject to an enforceable netting agreement.

Consolidated Obligations

Consolidated Obligations	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Consolidated Obligations [Text Block]	Consolidated Obligations Table 7.1 - Consolidated Discount Notes Outstanding (dollars in thousands) Carrying Value Principal Amount Weighted Average Interest Rate (1) June 30, 2023 $ 48,336,904 $ 48,847,370 4.89 % December 31, 2022 $ 40,691,180 $ 41,007,526 3.95 % (1) Represents an implied rate without consideration of concessions. Table 7.2 - Consolidated Bonds Outstanding by Original Contractual Maturity (dollars in thousands) June 30, 2023 December 31, 2022 Year of Original Contractual Maturity Amount Weighted Average Interest Rate Amount Weighted Average Interest Rate Due in 1 year or less $ 77,660,580 4.98 % $ 48,105,620 4.00 % Due after 1 year through 2 years 7,211,000 4.13 3,056,405 2.97 Due after 2 years through 3 years 2,202,000 1.71 2,815,000 1.70 Due after 3 years through 4 years 1,168,500 2.07 934,000 1.97 Due after 4 years through 5 years 1,312,500 2.17 1,586,000 1.94 Thereafter 3,590,140 3.11 3,246,140 2.83 Total principal amount 93,144,720 4.69 59,743,165 3.69 Premiums 31,822 28,958 Discounts (21,169) (18,716) Fair value hedging adjustments (36,165) (41,745) Fair value option valuation adjustment and accrued interest 93,317 (43,917) Total $ 93,212,525 $ 59,667,745 Table 7.3 - Consolidated Bonds Outstanding by Call Features (in thousands) June 30, 2023 December 31, 2022 Principal Amount of Consolidated Bonds: Non-callable $ 70,032,720 $ 49,628,665 Callable 23,112,000 10,114,500 Total principal amount $ 93,144,720 $ 59,743,165 Table 7.4 - Consolidated Bonds Outstanding by Original Contractual Maturity or Next Call Date (in thousands) Year of Original Contractual Maturity or Next Call Date June 30, 2023 December 31, 2022 Due in 1 year or less $ 83,550,580 $ 54,465,620 Due after 1 year through 2 years 5,462,000 1,543,405 Due after 2 years through 3 years 886,000 803,000 Due after 3 years through 4 years 272,500 571,000 Due after 4 years through 5 years 412,500 258,000 Thereafter 2,561,140 2,102,140 Total principal amount $ 93,144,720 $ 59,743,165 Consolidated Bonds, beyond having fixed-rate or variable-rate interest-rate payment terms, may also have a step-up interest-rate payment type. Step-up bonds pay interest at increasing fixed rates for specified intervals over the life of the Consolidated Bond. These Consolidated Bonds generally contain provisions enabling the FHLB to call the Consolidated Bonds at its option on the step-up dates. Table 7.5 - Consolidated Bonds by Interest-rate Payment Type (in thousands) June 30, 2023 December 31, 2022 Principal Amount of Consolidated Bonds: Fixed-rate $ 32,872,720 $ 19,797,165 Variable-rate 60,272,000 39,621,000 Step-up — 325,000 Total principal amount $ 93,144,720 $ 59,743,165

Affordable Housing Program (AHP

Affordable Housing Program (AHP)	6 Months Ended
	Jun. 30, 2023
Affordable Housing Program (AHP) [Abstract]
Affordable Housing Program (AHP) [Text Block]	Affordable Housing Program (AHP) The FHLBank Act requires each FHLBank to establish an AHP. Each FHLBank provides subsidies in the form of direct grants or below-market interest rates on Advances to members who provide the funds to assist in the purchase, construction, or rehabilitation of housing for very low-, low-, and moderate-income households. Each FHLBank recognizes AHP assessment expense equal to the greater of 10 percent of its annual income subject to assessment or the prorated sum required to ensure the aggregate contribution by the FHLBanks is no less than $100 million for each year. For purposes of the AHP calculation, income subject to assessment is defined as net income before AHP assessments, plus interest expense related to mandatorily redeemable capital stock. The FHLB accrues AHP expense monthly based on its income subject to assessment. The FHLB reduces the AHP liability as members use subsidies. In addition to the required AHP assessment, the Board of Directors may elect to make voluntary contributions to the AHP. Table 8.1 - Rollforward of the AHP Liability (in thousands) Balance at December 31, 2022 $ 87,923 Assessments (current year additions) 38,466 Voluntary contribution 7,307 Subsidy uses, net (12,409) Balance at June 30, 2023 $ 121,287

Capital

Capital	6 Months Ended
	Jun. 30, 2023
Banking Regulation, Total Capital [Abstract]
Capital [Text Block]	Capital Table 9.1 - Capital Requirements (dollars in thousands) June 30, 2023 December 31, 2022 Minimum Requirement Actual Minimum Requirement Actual Risk-based capital $ 1,223,534 $ 7,446,696 $ 920,030 $ 6,569,024 Capital-to-assets ratio (regulatory) 4.00 % 4.93 % 4.00 % 6.05 % Regulatory capital $ 6,045,176 $ 7,446,696 $ 4,344,380 $ 6,569,024 Leverage capital-to-assets ratio (regulatory) 5.00 % 7.39 % 5.00 % 9.07 % Leverage capital $ 7,556,470 $ 11,170,044 $ 5,430,475 $ 9,853,536 Restricted Retained Earnings. At June 30, 2023 and December 31, 2022 the FHLB had (in thousands) $629,111 and $560,118, respectively, in restricted retained earnings. These restricted retained earnings are not available to pay dividends but are available to absorb unexpected losses, if any, that the FHLB may experience. Table 9.2 - Rollforward of Mandatorily Redeemable Capital Stock (in thousands) Balance, December 31, 2022 $ 17,453 Capital stock subject to mandatory redemption reclassified from equity 313,383 Repurchase/redemption of mandatorily redeemable capital stock (314,871) Balance, June 30, 2023 $ 15,965 Table 9.3 - Mandatorily Redeemable Capital Stock by Contractual Year of Redemption (in thousands) Contractual Year of Redemption June 30, 2023 December 31, 2022 Year 1 $ — $ 1,148 Year 2 9 29 Year 3 — 5 Year 4 8,297 5,853 Year 5 560 3,313 Past contractual redemption date due to remaining activity (1) 7,099 7,105 Total $ 15,965 $ 17,453 (1) Represents mandatorily redeemable capital stock that is past the end of the contractual redemption period because there is activity outstanding to which the mandatorily redeemable capital stock relates.

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	6 Months Ended
	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive (Loss) Income [Text Block]	Accumulated Other Comprehensive Income (Loss) The following tables summarize the changes in accumulated other comprehensive income (loss) for the three and six months ended June 30, 2023 and 2022. Table 10.1 - Accumulated Other Comprehensive Income (Loss) (in thousands) Net unrealized gains (losses) on available-for-sale securities Pension and postretirement benefits Total accumulated other comprehensive income (loss) BALANCE, MARCH 31, 2022 $ (11,647) $ (12,522) $ (24,169) Other comprehensive income before reclassification: Net unrealized gains (losses) (9,988) — (9,988) Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — 509 509 Net current period other comprehensive income (loss) (9,988) 509 (9,479) BALANCE, JUNE 30, 2022 $ (21,635) $ (12,013) $ (33,648) BALANCE, MARCH 31, 2023 $ (51,772) $ (712) $ (52,484) Other comprehensive income before reclassification: Net unrealized gains (losses) 18,408 — 18,408 Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — (98) (98) Net current period other comprehensive income (loss) 18,408 (98) 18,310 BALANCE, JUNE 30, 2023 $ (33,364) $ (810) $ (34,174) Net unrealized gains (losses) on available-for-sale securities Pension and postretirement benefits Total accumulated other comprehensive income (loss) BALANCE, DECEMBER 31, 2021 $ 26,125 $ (13,031) $ 13,094 Other comprehensive income before reclassification: Net unrealized gains (losses) (47,760) — (47,760) Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — 1,018 1,018 Net current period other comprehensive income (loss) (47,760) 1,018 (46,742) BALANCE, JUNE 30, 2022 $ (21,635) $ (12,013) $ (33,648) BALANCE, DECEMBER 31, 2022 $ (48,726) $ (614) $ (49,340) Other comprehensive income before reclassification: Net unrealized gains (losses) 15,362 — 15,362 Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — (196) (196) Net current period other comprehensive income (loss) 15,362 (196) 15,166 BALANCE, JUNE 30, 2023 $ (33,364) $ (810) $ (34,174) (1) Included in Non-Interest Expense - Other in the Statements of Income.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Segment Information [Text Block]	Segment Information The FHLB has identified two primary operating segments based on its method of internal reporting: Traditional Member Finance and the MPP. These segments reflect the FHLB's two primary Mission Asset Activities and the manner in which they are managed from the perspective of development, resource allocation, product delivery, pricing, credit risk and operational administration. The segments identify the principal ways the FHLB provides services to member stockholders. Table 11.1 - Financial Performance by Operating Segment (in thousands) Three Months Ended June 30, Traditional Member MPP Total 2023 Net interest income (loss) $ 211,488 $ 35,152 $ 246,640 Non-interest income (loss) 37,645 (726) 36,919 Non-interest expense 37,070 4,659 41,729 Income (loss) before assessments 212,063 29,767 241,830 Affordable Housing Program assessments 21,304 2,977 24,281 Net income (loss) $ 190,759 $ 26,790 $ 217,549 2022 Net interest income (loss) $ 59,827 $ 11,296 $ 71,123 Non-interest income (loss) (2,534) 2,634 100 Non-interest expense 23,371 2,686 26,057 Income (loss) before assessments 33,922 11,244 45,166 Affordable Housing Program assessments 3,475 1,124 4,599 Net income (loss) $ 30,447 $ 10,120 $ 40,567 Six Months Ended June 30, Traditional Member MPP Total 2023 Net interest income (loss) $ 357,977 $ 68,864 $ 426,841 Non-interest income (loss) 31,641 (5,100) 26,541 Non-interest expense 62,519 7,436 69,955 Income (loss) before assessments 327,099 56,328 383,427 Affordable Housing Program assessments 32,833 5,633 38,466 Net income (loss) $ 294,266 $ 50,695 $ 344,961 2022 Net interest income (loss) $ 137,202 $ 14,711 $ 151,913 Non-interest income (loss) (34,646) (2,447) (37,093) Non-interest expense 46,122 5,538 51,660 Income (loss) before assessments 56,434 6,726 63,160 Affordable Housing Program assessments 5,810 672 6,482 Net income (loss) $ 50,624 $ 6,054 $ 56,678 Table 11.2 - Asset Balances by Operating Segment (in thousands) Assets Traditional Member MPP Total June 30, 2023 $ 142,256,860 $ 8,872,537 $ 151,129,397 December 31, 2022 99,649,867 8,959,637 108,609,504

Fair Value Disclosures

Fair Value Disclosures	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Disclosures The fair value amounts recorded on the Statements of Condition and presented in the related note disclosures have been determined by the FHLB using available market information and the FHLB's best judgment of appropriate valuation methods. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). The fair values reflect the FHLB's judgment of how a market participant would estimate the fair values. Fair Value Hierarchy . GAAP establishes a fair value hierarchy and requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The inputs are evaluated and an overall level for the measurement is determined. This overall level is an indication of how market observable the fair value measurement is. The fair value hierarchy prioritizes the inputs used to measure fair value into three broad levels: Level 1 Inputs - Quoted prices (unadjusted) for identical assets or liabilities in an active market that the reporting entity can access on the measurement date. An active market for the asset or liability is a market in which the transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2 Inputs - Inputs other than quoted prices within Level 1 that are observable inputs for the asset or liability, either directly or indirectly. If the asset or liability has a specified (contractual) term, a Level 2 input must be observable for substantially the full term of the asset or liability. Level 2 inputs include the following: (1) quoted prices for similar assets or liabilities in active markets; (2) quoted prices for identical or similar assets or liabilities in markets that are not active; (3) inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates and yield curves that are observable at commonly quoted intervals, and implied volatilities); and (4) inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Inputs - Unobservable inputs for the asset or liability, which are supported by limited to no market activity and reflect the FHLB's own assumptions. The FHLB reviews the fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation inputs may result in a reclassification of certain financial assets or liabilities. The FHLB did not have any transfers of assets or liabilities into or out of Level 3 of the fair value hierarchy during the six months ended June 30, 2023 or 2022. Table 12.1 presents the carrying value, fair value, and fair value hierarchy of financial assets and liabilities of the FHLB. The FHLB records trading securities, available-for-sale securities, derivative assets, derivative liabilities, certain Advances and certain Consolidated Obligations at fair value on a recurring basis, and on occasion, certain mortgage loans held for portfolio on a nonrecurring basis. The FHLB records all other financial assets and liabilities at amortized cost. Refer to Table 12.2 for further details about the financial assets and liabilities held at fair value on either a recurring or nonrecurring basis. Table 12.1 - Fair Value Summary (in thousands) June 30, 2023 Fair Value Financial Instruments Carrying Value (1) Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Assets: Cash and due from banks $ 20,274 $ 20,274 $ 20,274 $ — $ — $ — Interest-bearing deposits 2,245,131 2,245,131 — 2,245,131 — — Securities purchased under agreements to resell 12,205,490 12,205,494 — 12,205,494 — — Federal funds sold 14,153,000 14,153,000 — 14,153,000 — — Trading securities 1,728,492 1,728,492 — 1,728,492 — — Available-for-sale securities 9,692,947 9,692,947 — 9,692,947 — — Held-to-maturity securities 15,833,684 15,516,658 — 15,516,658 — — Advances (3) 86,890,470 86,859,905 — 86,859,905 — — Mortgage loans held for portfolio 6,996,186 6,230,181 — 6,220,785 9,396 — Accrued interest receivable 635,623 635,623 — 635,623 — — Derivative assets 701,758 701,758 — 129,491 — 572,267 Liabilities: Deposits 1,151,572 1,151,255 — 1,151,255 — — Consolidated Obligations: Discount Notes (4) 48,336,904 48,328,883 — 48,328,883 — — Bonds (5) 93,212,525 92,192,711 — 92,192,711 — — Mandatorily redeemable capital stock 15,965 15,965 15,965 — — — Accrued interest payable 463,628 463,628 — 463,628 — — Derivative liabilities 152 152 — 89,081 — (88,929) (1) For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses. (2) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. (3) Includes (in thousands) $103,313 of Advances recorded under the fair value option at June 30, 2023. (4) Includes (in thousands) $15,143,932 of Consolidated Obligation Discount Notes recorded under the fair value option at June 30, 2023. (5) Includes (in thousands) $19,291,817 of Consolidated Obligation Bonds recorded under the fair value option at June 30, 2023. December 31, 2022 Fair Value Financial Instruments Carrying Value (1) Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Assets: Cash and due from banks $ 19,604 $ 19,604 $ 19,604 $ — $ — $ — Interest-bearing deposits 1,770,194 1,770,194 — 1,770,194 — — Securities purchased under agreements to resell 519,540 519,545 — 519,545 — — Federal funds sold 5,399,000 5,399,000 — 5,399,000 — — Trading securities 1,979,816 1,979,816 — 1,979,816 — — Available-for-sale securities 8,631,765 8,631,765 — 8,631,765 — — Held-to-maturity securities 15,304,359 14,983,043 — 14,983,043 — — Advances (3) 67,019,555 66,907,691 — 66,907,691 — — Mortgage loans held for portfolio 7,162,509 6,272,030 — 6,259,805 12,225 — Accrued interest receivable 283,132 283,132 — 283,132 — — Derivative assets 490,560 490,560 — 50,792 — 439,768 Liabilities: Deposits 1,039,427 1,038,580 — 1,038,580 — — Consolidated Obligations: Discount Notes (4) 40,691,180 40,680,714 — 40,680,714 — — Bonds (5) 59,667,745 58,698,959 — 58,698,959 — — Mandatorily redeemable capital stock 17,453 17,453 17,453 — — — Accrued interest payable 290,194 290,194 — 290,194 — — Derivative liabilities 460 460 — 88,045 — (87,585) (1) For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses. (2) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. (3) Includes (in thousands) $4,954 of Advances recorded under the fair value option at December 31, 2022. (4) Includes (in thousands) $21,010,746 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2022. (5) Includes (in thousands) $5,469,583 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2022. Summary of Valuation Methodologies and Primary Inputs . The valuation methodologies and primary inputs used to develop the measurement of fair value for assets and liabilities that are measured at fair value on a recurring or nonrecurring basis in the Statement of Condition are disclosed in Note 15 - Fair Value Disclosures in the FHLB's 2022 Annual Report on Form 10-K. There have been no significant changes in the valuation methodologies during the six months ended June 30, 2023. Fair Value Measurements . Table 12.2 presents the fair value of financial assets and liabilities that are recorded on a recurring basis at June 30, 2023 and December 31, 2022, by level within the fair value hierarchy. Table 12.2 - Fair Value Measurements (in thousands) Fair Value Measurements at June 30, 2023 Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Recurring fair value measurements - Assets Trading securities: U.S. Treasury obligations $ 244,612 $ — $ 244,612 $ — $ — GSE obligations 1,483,801 — 1,483,801 — — U.S. obligation single-family MBS 79 — 79 — — Total trading securities 1,728,492 — 1,728,492 — — Available-for-sale securities: U.S. Treasury obligations 7,451,660 — 7,451,660 — — GSE obligations 117,837 — 117,837 — — GSE multi-family MBS 2,123,450 — 2,123,450 — — Total available-for-sale securities 9,692,947 — 9,692,947 — — Advances 103,313 — 103,313 — — Derivative assets: Interest rate related 701,721 — 129,454 — 572,267 Mortgage delivery commitments 37 — 37 — — Total derivative assets 701,758 — 129,491 — 572,267 Total assets at fair value $ 12,226,510 $ — $ 11,654,243 $ — $ 572,267 Recurring fair value measurements - Liabilities Consolidated Obligations: Discount Notes $ 15,143,932 $ — $ 15,143,932 $ — $ — Bonds 19,291,817 — 19,291,817 — — Total Consolidated Obligations 34,435,749 — 34,435,749 — — Derivative liabilities: Interest rate related — — 88,929 — (88,929) Mortgage delivery commitments 152 — 152 — — Total derivative liabilities 152 — 89,081 — (88,929) Total liabilities at fair value $ 34,435,901 $ — $ 34,524,830 $ — $ (88,929) (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. Fair Value Measurements at December 31, 2022 Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Recurring fair value measurements - Assets Trading securities: U.S. Treasury obligations $ 491,464 $ — $ 491,464 $ — $ — GSE obligations 1,488,235 — 1,488,235 — — U.S. obligation single-family MBS 117 — 117 — — Total trading securities 1,979,816 — 1,979,816 — — Available-for-sale securities: U.S. Treasury obligations 7,194,271 — 7,194,271 — — GSE obligations 118,082 — 118,082 — — GSE multi-family MBS 1,319,412 — 1,319,412 — — Total available-for-sale securities 8,631,765 — 8,631,765 — — Advances 4,954 — 4,954 — — Derivative assets: Interest rate related 490,548 — 50,780 — 439,768 Mortgage delivery commitments 12 — 12 — — Total derivative assets 490,560 — 50,792 — 439,768 Total assets at fair value $ 11,107,095 $ — $ 10,667,327 $ — $ 439,768 Recurring fair value measurements - Liabilities Consolidated Obligations: Discount Notes $ 21,010,746 $ — $ 21,010,746 $ — $ — Bonds 5,469,583 — 5,469,583 — — Total Consolidated Obligations 26,480,329 — 26,480,329 — — Derivative liabilities: Interest rate related 372 — 87,957 — (87,585) Mortgage delivery commitments 88 — 88 — — Total derivative liabilities 460 — 88,045 — (87,585) Total liabilities at fair value $ 26,480,789 $ — $ 26,568,374 $ — $ (87,585) (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. Fair Value Option . The fair value option provides an irrevocable option to elect fair value as an alternative measurement for selected financial assets, financial liabilities, unrecognized firm commitments, and written loan commitments not previously carried at fair value. It requires a company to display the fair value of those assets and liabilities for which it has chosen to use fair value on the face of the Statements of Condition. Fair value is used for both the initial and subsequent measurement of the designated assets, liabilities and commitments, with the changes in fair value recognized in net income. If elected, interest income and interest expense on Advances and Consolidated Obligations carried at fair value are recognized based solely on the contractual amount of interest due or unpaid. Any transaction fees or costs are immediately recognized into other non-interest income or other non-interest expense. The FHLB has elected the fair value option for certain financial instruments that either do not qualify for hedge accounting or may be at risk for not meeting hedge effectiveness requirements. These fair value elections were made primarily in an effort to mitigate the potential income statement volatility that can arise from economic hedging relationships in which the carrying value of the hedged item is not adjusted for changes in fair value. Table 12.3 presents net gains (losses) recognized in earnings related to financial assets and liabilities in which the fair value option was elected during the three and six months ended June 30, 2023 and 2022. Table 12.3 – Fair Value Option - Financial Assets and Liabilities (in thousands) Three Months Ended June 30, Six Months Ended June 30, Net Gains (Losses) from Changes in Fair Value Recognized in Earnings 2023 2022 2023 2022 Advances $ (1,568) $ (842) $ (1,535) $ (2,282) Consolidated Discount Notes 16,214 29,094 (334) 38,294 Consolidated Bonds 45,789 32,501 27,492 43,419 Total net gains (losses) $ 60,435 $ 60,753 $ 25,623 $ 79,431 For instruments recorded under the fair value option, the related contractual interest income, contractual interest expense and the discount amortization on Discount Notes are recorded as part of net interest income on the Statements of Income. The remaining changes in fair value for instruments in which the fair value option has been elected are recorded as “Net gains (losses) on financial instruments held under fair value option” in the Statements of Income, except for changes in fair value related to instrument specific credit risk, which are recorded in accumulated other comprehensive income (loss) in the Statement of Condition. The FHLB has determined that none of the remaining changes in fair value were related to instrument-specific credit risk for the six months ended June 30, 2023 or 2022. In determining that there has been no change in instrument-specific credit risk period to period, the FHLB primarily considered the following factors: ▪ The FHLB is a federally chartered GSE, and as a result of this status, the FHLB’s Consolidated Obligations have historically received the same credit ratings as the government bond credit rating of the United States, even though they are not obligations of the United States and are not guaranteed by the United States. ▪ The FHLB is jointly and severally liable with the other 10 FHLBanks for the payment of principal and interest on all Consolidated Obligations of each of the other FHLBanks. The following table reflects the difference between the aggregate unpaid principal balance outstanding and the aggregate fair value for Advances and Consolidated Obligations for which the fair value option has been elected. Table 12.4 – Aggregate Unpaid Balance and Aggregate Fair Value (in thousands) June 30, 2023 December 31, 2022 Aggregate Unpaid Principal Balance Aggregate Fair Value Aggregate Fair Value Over/(Under) Aggregate Unpaid Principal Balance Aggregate Unpaid Principal Balance Aggregate Fair Value Aggregate Fair Value Over/(Under) Aggregate Unpaid Principal Balance Advances $ 104,620 $ 103,313 $ (1,307) $ 5,000 $ 4,954 $ (46) Consolidated Discount Notes 15,281,352 15,143,932 (137,420) 21,182,801 21,010,746 (172,055) Consolidated Bonds 19,198,500 19,291,817 93,317 5,513,500 5,469,583 (43,917)

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies [Text Block]	Commitments and Contingencies Off-Balance Sheet Commitments. Table 13.1 represents off-balance sheet commitments at June 30, 2023 and December 31, 2022. The FHLB has deemed it unnecessary to record any liabilities for credit losses on these commitments at June 30, 2023 and December 31, 2022. Table 13.1 - Off-Balance Sheet Commitments (in thousands) June 30, 2023 December 31, 2022 Notional Amount Expire within one year Expire after one year Total Expire within one year Expire after one year Total Letters of Credit $ 45,345,606 $ 392,604 $ 45,738,210 $ 41,122,833 $ 222,439 $ 41,345,272 Commitments for standby bond purchases — — — 11,015 — 11,015 Commitments to purchase mortgage loans 65,176 — 65,176 14,291 — 14,291 Unsettled Consolidated Bonds, principal amount (1) — — — 3,000,000 — 3,000,000 Unsettled Consolidated Discount Notes, principal amount (1) — — — 182,205 — 182,205 (1) Expiration is based on settlement period rather than underlying contractual maturity of Consolidated Obligations. The carrying value of guarantees related to Letters of Credit are recorded in other liabilities and were (in thousands) $9,038 and $9,691 at June 30, 2023 and December 31, 2022. Legal Proceedings . From time to time, the FHLB is subject to legal proceedings arising in the normal course of business. The FHLB would record an accrual for a loss contingency when it is probable that a loss has been incurred and the amount could be reasonably estimated. After consultation with legal counsel, management does not anticipate that the ultimate liability and the range of reasonably possible losses, if any, arising out of any matters will have a material effect on the FHLB's financial condition or results of operations.

Transactions with Other FHLBank

Transactions with Other FHLBanks	6 Months Ended
	Jun. 30, 2023
Transactions with Other FHLBanks [Abstract]
Transactions with Other FHLBanks [Text Block]	Transactions with Other FHLBanks The FHLB notes transactions with other FHLBanks on the face of its financial statements. Occasionally, the FHLB loans short-term funds to and borrows short-term funds from other FHLBanks. These loans and borrowings are transacted at current market rates when traded. There were no such loans or borrowings outstanding at June 30, 2023 or December 31, 2022. The following table details the average daily balance of lending and borrowing between the FHLB and other FHLBanks for the six months ended June 30, 2023 and 2022. Table 14.1 - Lending and Borrowing Between the FHLB and Other FHLBanks (in thousands) Average Daily Balances for the Six Months Ended June 30, 2023 2022 Loans to other FHLBanks $ 34,530 $ 16,851

Transactions with Stockholders

Transactions with Stockholders	6 Months Ended
	Jun. 30, 2023
Transactions with Stockholders [Abstract]
Transactions with Stockholders [Text Block]	Transactions with Stockholders As a cooperative, the FHLB's capital stock is owned by its members, by former members that retain the stock as provided in the FHLB's Capital Plan and by nonmember institutions that have acquired members and must retain the stock to support Advances or other capital-requiring activities with the FHLB. All Advances were issued to members and all mortgage loans held for portfolio were purchased from members during the six months ended June 30, 2023 and 2022. The FHLB also maintains demand deposit accounts for members, primarily to facilitate settlement activities that are directly related to Advances and mortgage loan purchases. Additionally, the FHLB may enter into interest rate swaps with its stockholders. The FHLB may not invest in any equity securities issued by its stockholders. At June 30, 2023 and December 31, 2022, the FHLB did not own any MBS securitized by, or other investment securities issued by, its stockholders. For financial statement purposes, the FHLB defines related parties as those members with more than 10 percent of the voting interests of the FHLB capital stock outstanding. Federal statute prescribes the voting rights of members in the election of both Member and Independent directors. For Member directorships, the Finance Agency designates the number of Member directorships in a given year and an eligible voting member may vote only for candidates seeking election in its respective state. For Independent directors, the FHLB's Board of Directors nominates candidates to be placed on the ballot in an at-large election. For both Member and Independent director elections, a member is entitled to vote one share of required capital stock, subject to a statutory limitation, for each applicable directorship. Under this limitation, the total number of votes that a member may cast is limited to the average number of shares of the FHLB's capital stock that were required to be held by all members in that state as of the record date for voting. Nonmember stockholders are not eligible to vote in director elections. Given these statutory limitations, no member owned more than 10 percent of the voting interests of the FHLB at June 30, 2023 or December 31, 2022. All transactions with stockholders are entered into in the ordinary course of business. Finance Agency regulations require the FHLB to offer the same pricing for Advances and other services to all members regardless of asset or transaction size, charter type, or geographic location. However, the FHLB may, in pricing its Advances, distinguish among members based upon its assessment of the credit and other risks to the FHLB of lending to any particular member or upon other reasonable criteria that may be applied equally to all members. The FHLB's policies and procedures require that such standards and criteria be applied consistently and without discrimination to all members applying for Advances and other services. Transactions with Directors' Financial Institutions. In the ordinary course of its business, the FHLB provides products and services to members whose officers or directors serve as directors of the FHLB (Directors' Financial Institutions). Finance Agency regulations require that transactions with Directors' Financial Institutions be made on the same terms as those with any other member. The following table reflects balances with Directors' Financial Institutions for the items indicated below. The FHLB had no MBS or derivatives transactions with Directors' Financial Institutions at June 30, 2023 or December 31, 2022. Table 15.1 - Transactions with Directors' Financial Institutions (dollars in millions) June 30, 2023 December 31, 2022 Balance % of Total (1) Balance % of Total (1) Advances $ 3,185 3.6 % $ 22,009 32.6 % MPP 10 0.1 56 0.8 Regulatory capital stock 203 3.5 1,501 29.0 (1) Percentage of total principal (Advances), unpaid principal balance (MPP), and regulatory capital stock. Concentrations. The following table shows regulatory capital stock balances, outstanding Advance principal balances, and unpaid principal balances of mortgage loans held for portfolio of stockholders holding five percent or more of regulatory capital stock and includes any known affiliates that are members of the FHLB. Table 15.2 - Stockholders Holding Five Percent or more of Regulatory Capital Stock (dollars in millions) Regulatory Capital Stock Advance MPP Unpaid June 30, 2023 Balance % of Total Principal Principal Balance U.S. Bank, N.A. $ 1,454 25 % $ 20,500 $ 7 Keybank, N.A. 813 14 15,339 — The Huntington National Bank 403 7 6,501 344 Fifth Third Bank 339 6 5,301 — First Horizon Bank 327 6 4,340 — Regulatory Capital Stock Advance MPP Unpaid December 31, 2022 Balance % of Total Principal Principal Balance U.S. Bank, N.A. $ 1,293 25 % $ 19,000 $ 8 Keybank, N.A. 670 13 11,344 — Fifth Third Bank 381 7 4,301 — The Huntington National Bank 303 6 1,702 348

Recently Issued Accounting St_2

Recently Issued Accounting Standards and Interpretations (Policies)	6 Months Ended
	Jun. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
Credit Loss, Financial Instrument [Policy Text Block]	Mortgage Loans - FHA. The FHLB invests in fixed-rate mortgage loans secured by one-to-four-family residential properties insured by the FHA. The FHLB expects to recover any losses from such loans from the FHA. Any losses from these loans that are not recovered from the FHA would be caused by a claim rejection by the FHA and, as such, would be recoverable from the selling participating financial institutions. Therefore, the FHLB only has credit risk for these loans if the seller or servicer fails to pay for losses not covered by the FHA insurance, but in such instance, the FHLB would have recourse against the servicer for such failure. As a result, the FHLB did not record an allowance for credit losses on its FHA insured mortgage loans. Furthermore, due to the insurance, none of these mortgage loans have been placed on non-accrual status. Mortgage Loans - Conventional MPP. Conventional loans are evaluated collectively when similar risk characteristics exist; loans that do not share risk characteristics with other pools are removed from the collective evaluation and evaluated for expected credit losses on an individual basis. For loans with similar risk characteristics, the FHLB determines the allowance for credit losses through analyses that include considering various loan portfolio and collateral-related characteristics, such as past performance, current conditions, and reasonable and supportable forecasts of expected economic conditions. The FHLB uses a model that employs a variety of methods, such as projected cash flows to estimate expected credit losses over the life of the loans. This model relies on a number of inputs, such as both current and forecasted property values and interest rates, as well as historical borrower behavior experience. The FHLB’s calculation of expected credit losses includes a forecast of home prices over the entire contractual terms of its conventional loans rather than a reversion to historical home price trends after an initial forecast period. The FHLB also incorporates associated credit enhancements to determine estimated expected credit losses. Certain conventional loans may be evaluated for credit losses by using the practical expedient for collateral dependent assets. A mortgage loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be substantially through the sale of the underlying collateral. The FHLB may estimate the fair value of this collateral by either applying an appropriate loss severity rate, using third-party estimates, or using a property valuation model. The expected credit loss of a collateral dependent mortgage loan is equal to the difference between the amortized cost of the loan and the estimated fair value of the collateral, less estimated selling costs. The FHLB will either reserve for these estimated losses or record a direct charge-off of the loan balance, if certain triggering criteria are met. Expected recoveries of prior charge-offs, if any, are included in the allowance for credit losses.
Segment Reporting, Policy [Policy Text Block]	The FHLB has identified two primary operating segments based on its method of internal reporting: Traditional Member Finance and the MPP. These segments reflect the FHLB's two primary Mission Asset Activities and the manner in which they are managed from the perspective of development, resource allocation, product delivery, pricing, credit risk and operational administration. The segments identify the principal ways the FHLB provides services to member stockholders.
Fair Value of Financial Instruments, Policy [Policy Text Block]	The fair value amounts recorded on the Statements of Condition and presented in the related note disclosures have been determined by the FHLB using available market information and the FHLB's best judgment of appropriate valuation methods. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). The fair values reflect the FHLB's judgment of how a market participant would estimate the fair values.
Fair Value Transfer, Policy	The FHLB reviews the fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation inputs may result in a reclassification of certain financial assets or liabilities.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]	Trading Securities by Major Security Types (in thousands) Fair Value June 30, 2023 December 31, 2022 Non-mortgage-backed securities (non-MBS): U.S. Treasury obligations $ 244,612 $ 491,464 GSE obligations 1,483,801 1,488,235 Total non-MBS 1,728,413 1,979,699 Mortgage-backed securities (MBS): U.S. obligation single-family 79 117 Total MBS 79 117 Total $ 1,728,492 $ 1,979,816
Gain (Loss) on Securities [Table Text Block]	Net Gains (Losses) on Trading Securities (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Net unrealized gains (losses) on trading securities held at period end $ (27,033) $ (82,502) $ (2,693) $ (225,331) Net gains (losses) on trading securities sold/matured during the period 387 (5,321) 1,407 (22,655) Net gains (losses) on trading securities $ (26,646) $ (87,823) $ (1,286) $ (247,986)
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Available-for-Sale Securities by Major Security Types (in thousands) June 30, 2023 Amortized Cost (1) Gross Gross Fair Non-MBS: U.S. Treasury obligations $ 7,446,523 $ 7,858 $ (2,721) $ 7,451,660 GSE obligations 117,165 741 (69) 117,837 Total non-MBS 7,563,688 8,599 (2,790) 7,569,497 MBS: GSE multi-family 2,162,623 2,680 (41,853) 2,123,450 Total MBS 2,162,623 2,680 (41,853) 2,123,450 Total $ 9,726,311 $ 11,279 $ (44,643) $ 9,692,947 December 31, 2022 Amortized Cost (1) Gross Gross Fair Non-MBS: U.S. Treasury obligations $ 7,202,715 $ 3,584 $ (12,028) $ 7,194,271 GSE obligations 117,555 726 (199) 118,082 Total non-MBS 7,320,270 4,310 (12,227) 7,312,353 MBS: GSE multi-family 1,360,221 — (40,809) 1,319,412 Total MBS 1,360,221 — (40,809) 1,319,412 Total $ 8,680,491 $ 4,310 $ (53,036) $ 8,631,765 (1) Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively.
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]	Available-for-Sale Securities in a Continuous Gross Unrealized Loss Position (in thousands) June 30, 2023 Less than 12 Months 12 Months or more Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Non-MBS: U.S. Treasury obligations $ 1,812,209 $ (1,225) $ 885,591 $ (1,496) $ 2,697,800 $ (2,721) GSE obligations 3,677 (7) 4,401 (62) 8,078 (69) Total non-MBS 1,815,886 (1,232) 889,992 (1,558) 2,705,878 (2,790) MBS: GSE multi-family MBS 872,603 (7,905) 1,013,714 (33,948) 1,886,317 (41,853) Total MBS 872,603 (7,905) 1,013,714 (33,948) 1,886,317 (41,853) Total $ 2,688,489 $ (9,137) $ 1,903,706 $ (35,506) $ 4,592,195 $ (44,643) December 31, 2022 Less than 12 Months 12 Months or more Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Non-MBS: U.S. Treasury obligations $ 4,624,895 $ (12,028) $ — $ — $ 4,624,895 $ (12,028) GSE obligations 9,887 (199) — — 9,887 (199) Total non-MBS 4,634,782 (12,227) — — 4,634,782 (12,227) MBS: GSE multi-family MBS 959,421 (22,519) 359,991 (18,290) 1,319,412 (40,809) Total MBS 959,421 (22,519) 359,991 (18,290) 1,319,412 (40,809) Total $ 5,594,203 $ (34,746) $ 359,991 $ (18,290) $ 5,954,194 $ (53,036)
Investments Classified by Contractual Maturity Date [Table Text Block]	Available-for-Sale Securities by Contractual Maturity (in thousands) June 30, 2023 December 31, 2022 Year of Maturity Amortized Fair Amortized Fair Non-MBS: Due in 1 year or less $ — $ — $ — $ — Due after 1 year through 5 years 4,824,447 4,828,548 2,576,167 2,577,121 Due after 5 years through 10 years 2,729,095 2,730,862 4,734,017 4,725,345 Due after 10 years 10,146 10,087 10,086 9,887 Total non-MBS 7,563,688 7,569,497 7,320,270 7,312,353 MBS (1) 2,162,623 2,123,450 1,360,221 1,319,412 Total $ 9,726,311 $ 9,692,947 $ 8,680,491 $ 8,631,765 (1) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees. June 30, 2023 December 31, 2022 Year of Maturity Amortized Cost (1) Fair Value Amortized Cost (1) Fair Value Non-MBS: Due in 1 year or less $ 47,749 $ 47,753 $ 47,405 $ 47,354 Due after 1 year through 5 years — — — — Due after 5 years through 10 years — — — — Due after 10 years — — — — Total non-MBS 47,749 47,753 47,405 47,354 MBS (2) 15,785,935 15,468,905 15,256,954 14,935,689 Total $ 15,833,684 $ 15,516,658 $ 15,304,359 $ 14,983,043 (1) Carrying value equals amortized cost. (2) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees.
Schedule of Interest Rate Payment Terms For Investments [Table Text Block]	Interest Rate Payment Terms of Available-for-Sale Securities (in thousands) June 30, 2023 December 31, 2022 Amortized cost of non-MBS: Fixed-rate $ 7,563,688 $ 7,320,270 Total amortized cost of non-MBS 7,563,688 7,320,270 Amortized cost of MBS: Fixed-rate 2,162,623 1,360,221 Total amortized cost of MBS 2,162,623 1,360,221 Total $ 9,726,311 $ 8,680,491 June 30, 2023 December 31, 2022 Amortized cost of non-MBS: Fixed-rate $ 47,749 $ 47,405 Total amortized cost of non-MBS 47,749 47,405 Amortized cost of MBS: Fixed-rate 3,342,181 2,709,494 Variable-rate 12,443,754 12,547,460 Total amortized cost of MBS 15,785,935 15,256,954 Total $ 15,833,684 $ 15,304,359
Debt Securities, Held-to-maturity [Table Text Block]	Held-to-Maturity Securities by Major Security Types (in thousands) June 30, 2023 Amortized Cost (1) Gross Unrecognized Holding Gross Unrecognized Holding Losses Fair Value Non-MBS: GSE obligations $ 47,749 $ 4 $ — $ 47,753 Total non-MBS 47,749 4 — 47,753 MBS: U.S. obligation single-family 1,172,846 — (147,234) 1,025,612 GSE single-family 2,314,864 2,239 (106,383) 2,210,720 GSE multi-family 12,298,225 1,014 (66,666) 12,232,573 Total MBS 15,785,935 3,253 (320,283) 15,468,905 Total $ 15,833,684 $ 3,257 $ (320,283) $ 15,516,658 December 31, 2022 Amortized Cost (1) Gross Unrecognized Holding Gross Unrecognized Holding Losses Fair Value Non-MBS: U.S. Treasury obligations $ 47,405 $ — $ (51) $ 47,354 Total non-MBS 47,405 — (51) 47,354 MBS: U.S. obligation single-family 1,232,001 — (147,423) 1,084,578 GSE single-family 1,632,099 4,074 (101,140) 1,535,033 GSE multi-family 12,392,854 598 (77,374) 12,316,078 Total MBS 15,256,954 4,672 (325,937) 14,935,689 Total $ 15,304,359 $ 4,672 $ (325,988) $ 14,983,043 (1) Carrying value equals amortized cost. Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of (in thousands) $60,752 and $48,937 as of June 30, 2023 and December 31, 2022, respectively.

Advances Advances (Tables)

Advances Advances (Tables)	6 Months Ended
	Jun. 30, 2023
Advances [Abstract]
Schedule Of Federal Home Loan Bank Advances By Year Of Contractual Maturity [Table Text Block]	Advances by Redemption Term (dollars in thousands) June 30, 2023 December 31, 2022 Redemption Term Amount Weighted Average Interest Amount Weighted Average Interest Overdrawn demand deposit accounts $ 1,606 5.58 % $ — — % Due in 1 year or less 60,453,871 5.29 51,491,191 4.36 Due after 1 year through 2 years 10,743,878 4.88 5,904,109 3.69 Due after 2 years through 3 years 5,854,782 4.99 2,969,160 4.01 Due after 3 years through 4 years 4,007,375 3.64 2,418,222 4.14 Due after 4 years through 5 years 4,440,625 3.94 2,462,903 3.28 Thereafter 1,899,839 2.49 2,182,434 2.29 Total principal amount 87,401,976 5.02 67,428,019 4.17 Commitment fees (87) (90) Discounts (1,740) (2,073) Fair value hedging adjustments (508,372) (406,255) Fair value option valuation adjustments and accrued interest (1,307) (46) Total (1) $ 86,890,470 $ 67,019,555 (1) Carrying values exclude accrued interest receivable of (in thousands) $486,408 and $149,255 as of June 30, 2023 and December 31, 2022, respectively. Redemption Term or Next Call Date June 30, 2023 December 31, 2022 Overdrawn demand deposit accounts $ 1,606 $ — Due in 1 year or less 66,454,371 54,497,542 Due after 1 year through 2 years 7,743,378 5,901,058 Due after 2 years through 3 years 2,877,402 1,465,860 Due after 3 years through 4 years 4,007,375 918,222 Due after 4 years through 5 years 4,418,005 2,462,903 Thereafter 1,899,839 2,182,434 Total principal amount $ 87,401,976 $ 67,428,019 Redemption Term or Next Put Date June 30, 2023 December 31, 2022 Overdrawn demand deposit accounts $ 1,606 $ — Due in 1 year or less 61,073,871 52,461,191 Due after 1 year through 2 years 10,773,878 5,929,109 Due after 2 years through 3 years 5,909,782 2,989,160 Due after 3 years through 4 years 4,007,375 2,418,222 Due after 4 years through 5 years 4,415,625 2,382,903 Thereafter 1,219,839 1,247,434 Total principal amount $ 87,401,976 $ 67,428,019 June 30, 2023 December 31, 2022 Total fixed-rate (1) $ 61,028,690 $ 51,461,334 Total variable-rate (1) 26,373,286 15,966,685 Total principal amount $ 87,401,976 $ 67,428,019 (1) Payment terms based on current interest rate terms, which reflect any option exercises or rate conversions that have occurred subsequent to the related Advance issuance. June 30, 2023 December 31, 2022 Principal % of Total Principal Amount of Advances Principal % of Total Principal Amount of Advances U.S. Bank, N.A. $ 20,500 23 % U.S. Bank, N.A. $ 19,000 28 % Keybank, N.A. 15,339 18 Keybank, N.A. 11,344 17 The Huntington National Bank 6,501 7 Third Federal Savings and Loan Association 4,826 7 Third Federal Savings and Loan Association 5,428 6 Fifth Third Bank 4,301 6 Fifth Third Bank 5,301 6 Nationwide Life Insurance Company 3,136 5 Total $ 53,069 60 % Total $ 42,607 63 %

Mortgage Loans (Tables)

Mortgage Loans (Tables)	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Mortgage Loans Held for Portfolio [Table Text Block]	Mortgage Loans Held for Portfolio (in thousands) June 30, 2023 December 31, 2022 Fixed rate medium-term single-family mortgage loans (1) $ 487,009 $ 530,956 Fixed rate long-term single-family mortgage loans (2) 6,359,666 6,475,525 Total unpaid principal balance 6,846,675 7,006,481 Premiums 145,964 151,756 Discounts (2,353) (2,246) Hedging basis adjustments (3) 6,238 6,819 Total mortgage loans held for portfolio (4) 6,996,524 7,162,810 Allowance for credit losses on mortgage loans (338) (301) Mortgage loans held for portfolio, net $ 6,996,186 $ 7,162,509 (1) Medium-term is defined as a term of 15 years or less. (2) Long-term is defined as a term of greater than 15 years up to 30 years. (3) Represents the unamortized balance of the mortgage purchase commitments' market values at the time of settlement. The market value of the commitment is included in the basis of the mortgage loan and amortized accordingly. (4) Excludes accrued interest receivable of (in thousands) $21,564 and $21,846 at June 30, 2023 and December 31, 2022, respectively. June 30, 2023 December 31, 2022 Conventional mortgage loans $ 6,741,813 $ 6,893,552 Federal Housing Administration (FHA) mortgage loans 104,862 112,929 Total unpaid principal balance $ 6,846,675 $ 7,006,481
Members Holding Five Percent or more of Total Unpaid Principal [Table Text Block]	Members, Including Any Known Affiliates that are Members of the FHLB, and Former Members Selling Five Percent or more of Total Unpaid Principal (dollars in millions) June 30, 2023 December 31, 2022 Principal % of Total Principal % of Total Union Savings Bank $ 1,576 23 % Union Savings Bank $ 1,651 24 % FirstBank 728 11 FirstBank 730 10 Guardian Savings Bank FSB 421 6 Guardian Savings Bank FSB 438 6 The Huntington National Bank 344 5
Changes in LRA [Table Text Block]	Changes in the LRA (in thousands) Six Months Ended June 30, 2023 LRA at beginning of year $ 244,254 Additions 1,626 Claims (160) Scheduled distributions (3,629) LRA at end of period $ 242,091
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Quality Indicator of Conventional Mortgage Loans (in thousands) June 30, 2023 Origination Year Payment status, at amortized cost: Prior to 2019 2019 to June 30, 2023 Total Past due 30-59 days $ 17,382 $ 7,806 $ 25,188 Past due 60-89 days 3,769 1,080 4,849 Past due 90 days or more 7,592 1,901 9,493 Total past due mortgage loans 28,743 10,787 39,530 Current mortgage loans 2,463,415 4,387,969 6,851,384 Total conventional mortgage loans $ 2,492,158 $ 4,398,756 $ 6,890,914 December 31, 2022 Origination Year Payment status, at amortized cost: Prior to 2018 2018 to 2022 Total Past due 30-59 days $ 12,643 $ 14,440 $ 27,083 Past due 60-89 days 3,303 1,751 5,054 Past due 90 days or more 8,251 3,682 11,933 Total past due mortgage loans 24,197 19,873 44,070 Current mortgage loans 2,404,090 4,600,889 7,004,979 Total conventional mortgage loans $ 2,428,287 $ 4,620,762 $ 7,049,049
Financing Receivable, Past Due [Table Text Block]	Other Delinquency Statistics (dollars in thousands) June 30, 2023 Amortized Cost: Conventional MPP Loans FHA Loans Total In process of foreclosure (1) $ 5,774 $ 221 $ 5,995 Serious delinquency rate (2) 0.14 % 0.80 % 0.15 % Past due 90 days or more still accruing interest (3) $ 8,998 $ 844 $ 9,842 Loans on non-accrual status (4) $ 1,282 $ — $ 1,282 December 31, 2022 Amortized Cost: Conventional MPP Loans FHA Loans Total In process of foreclosure (1) $ 7,206 $ 361 $ 7,567 Serious delinquency rate (2) 0.18 % 1.32 % 0.19 % Past due 90 days or more still accruing interest (3) $ 11,369 $ 1,500 $ 12,869 Loans on non-accrual status (4) $ 1,423 $ — $ 1,423 (1) Includes loans where the decision of foreclosure or a similar alternative such as pursuit of deed-in-lieu has been reported. (2) Loans that are 90 days or more past due or in the process of foreclosure (including past due or current loans in the process of foreclosure) expressed as a percentage of the total loan portfolio class. (3) Each conventional loan past due 90 days or more still accruing interest is on a schedule/scheduled monthly settlement basis and contains one or more credit enhancements. Loans that are well secured and in the process of collection as a result of remaining credit enhancements and schedule/scheduled settlement are not placed on non-accrual status. (4) At June 30, 2023 and December 31, 2022, (in thousands) $986 and $971, respectively, of conventional MPP loans on non-accrual status do not have a related allowance because these loans were either previously charged off to their expected recoverable value and/or the fair value of the underlying collateral, including any credit enhancements, is greater than the amortized cost of the loans.

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Fair Value of Derivative Instruments (in thousands) June 30, 2023 Notional Amount of Derivatives Derivative Assets Derivative Liabilities Derivatives designated as fair value hedging instruments: Interest rate swaps $ 28,677,397 $ 10,375 $ 52,849 Derivatives not designated as hedging instruments: Interest rate swaps 36,291,236 114,688 36,080 Interest rate swaptions 425,000 4,391 — Mortgage delivery commitments 65,176 37 152 Total derivatives not designated as hedging instruments 36,781,412 119,116 36,232 Total derivatives before adjustments $ 65,458,809 129,491 89,081 Netting adjustments and cash collateral (1) 572,267 (88,929) Total derivative assets and total derivative liabilities $ 701,758 $ 152 December 31, 2022 Notional Amount of Derivatives Derivative Assets Derivative Liabilities Derivatives designated as fair value hedging instruments: Interest rate swaps $ 21,577,007 $ 37,175 $ 32,630 Derivatives not designated as hedging instruments: Interest rate swaps 28,840,270 5,839 55,327 Interest rate swaptions 355,000 7,766 — Mortgage delivery commitments 14,291 12 88 Total derivatives not designated as hedging instruments 29,209,561 13,617 55,415 Total derivatives before adjustments $ 50,786,568 50,792 88,045 Netting adjustments and cash collateral (1) 439,768 (87,585) Total derivative assets and total derivative liabilities $ 490,560 $ 460 (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively.
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]	Impact of Fair Value Hedging Relationships on Net Interest Income (in thousands) Three Months Ended June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 1,439,257 $ 129,326 $ (1,086,138) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ 84,234 $ 85,335 $ (8,064) Gain (loss) on derivatives 255,292 208,035 (5,913) Gain (loss) on hedged items (259,956) (217,129) 6,372 Effect on net interest income $ 79,570 $ 76,241 $ (7,605) Three Months Ended June 30, 2022 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 120,653 $ 16,944 $ (119,330) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ (12,694) $ (10,392) $ 2,289 Gain (loss) on derivatives 111,768 204,402 (11,999) Gain (loss) on hedged items (110,048) (205,960) 12,046 Effect on net interest income $ (10,974) $ (11,950) $ 2,336 Six Months Ended June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 2,335,866 $ 236,437 $ (1,728,134) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ 141,883 $ 155,696 $ (15,923) Gain (loss) on derivatives 93,061 (11,659) 6,140 Gain (loss) on hedged items (102,117) (7,857) (5,580) Effect on net interest income $ 132,827 $ 136,180 $ (15,363) Six Months Ended June 30, 2022 Advances Available-for-Sale Securities Consolidated Bonds Total interest income (expense) recorded in the Statements of Income $ 165,971 $ 21,962 $ (194,405) Impact of Fair Value Hedging Relationships Interest rate swaps: Net interest settlements $ (34,389) $ (23,926) $ 2,705 Gain (loss) on derivatives 334,259 541,563 (22,778) Gain (loss) on hedged items (330,223) (543,229) 22,740 Effect on net interest income $ (30,353) $ (25,592) $ 2,667 Three Months Ended June 30, 2023 2022 Derivatives not designated as hedging instruments: Economic hedges: Interest rate swaps $ 2,398 $ 16,596 Interest rate swaptions (526) 5,470 Net interest settlements (4,932) (267) Mortgage delivery commitments (200) (1,441) Total net gains (losses) related to derivatives not designated as hedging instruments (3,260) 20,358 Price alignment amount (1) (1,103) 11 Net gains (losses) on derivatives $ (4,363) $ 20,369 Six Months Ended June 30, 2023 2022 Derivatives not designated as hedging instruments: Economic hedges: Interest rate swaps $ 4,984 $ 149,642 Interest rate swaptions (5,027) 6,558 Net interest settlements (9,941) (31,441) Mortgage delivery commitments (73) (7,324) Total net gains (losses) related to derivatives not designated as hedging instruments (10,057) 117,435 Price alignment amount (1) (2,222) 39 Net gains (losses) on derivatives $ (12,279) $ 117,474 (1) This amount is for derivatives for which variation margin is characterized as a daily settled contract.
Schedule of Derivative Instruments By Type, Gain (Loss) in Statement of Financial Performance [Table Text Block]	Cumulative Basis Adjustments for Fair Value Hedges (in thousands) June 30, 2023 Advances Available-for-Sale Securities Consolidated Bonds Amortized cost of hedged asset or liability (1) $ 16,177,509 $ 9,704,490 $ 1,266,539 Fair value hedging adjustments Basis adjustments for active hedging relationships included in amortized cost $ (509,074) $ (996,983) $ (36,165) Basis adjustments for discontinued hedging relationships included in amortized cost 702 14,102 — Total amount of fair value hedging basis adjustments $ (508,372) $ (982,881) $ (36,165) December 31, 2022 Advances Available-for-Sale Securities Consolidated Bonds Amortized cost of hedged asset or liability (1) $ 10,199,624 $ 8,668,634 $ 1,286,881 Fair value hedging adjustments Basis adjustments for active hedging relationships included in amortized cost $ (407,137) $ (989,810) $ (41,745) Basis adjustments for discontinued hedging relationships included in amortized cost 882 13,932 — Total amount of fair value hedging basis adjustments $ (406,255) $ (975,878) $ (41,745) (1) Includes only the portion of amortized cost representing the hedged items in fair value hedging relationships.
Offsetting Assets [Table Text Block]	Offsetting of Derivative Assets and Derivative Liabilities (in thousands) June 30, 2023 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 123,551 $ (107,449) $ 37 $ 16,139 Cleared 5,903 679,716 — 685,619 Total $ 701,758 Derivative Liabilities: Uncleared $ 63,901 $ (63,901) $ 152 $ 152 Cleared 25,028 (25,028) — — Total $ 152 December 31, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 19,195 $ (12,600) $ 12 $ 6,607 Cleared 31,585 452,368 — 483,953 Total $ 490,560 Derivative Liabilities: Uncleared $ 83,896 $ (83,524) $ 88 $ 460 Cleared 4,061 (4,061) — — Total $ 460 (1) Includes mortgage delivery commitments that are not subject to an enforceable netting agreement.
Offsetting Liabilities [Table Text Block]	Offsetting of Derivative Assets and Derivative Liabilities (in thousands) June 30, 2023 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 123,551 $ (107,449) $ 37 $ 16,139 Cleared 5,903 679,716 — 685,619 Total $ 701,758 Derivative Liabilities: Uncleared $ 63,901 $ (63,901) $ 152 $ 152 Cleared 25,028 (25,028) — — Total $ 152 December 31, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amount of Netting Adjustments and Cash Collateral Derivative Instruments Not Meeting Netting Requirements (1) Total Derivative Assets and Total Derivative Liabilities Derivative Assets: Uncleared $ 19,195 $ (12,600) $ 12 $ 6,607 Cleared 31,585 452,368 — 483,953 Total $ 490,560 Derivative Liabilities: Uncleared $ 83,896 $ (83,524) $ 88 $ 460 Cleared 4,061 (4,061) — — Total $ 460 (1) Includes mortgage delivery commitments that are not subject to an enforceable netting agreement.

Consolidated Obligations (Table

Consolidated Obligations (Tables)	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Schedule of Short-term Debt [Table Text Block]	Consolidated Discount Notes Outstanding (dollars in thousands) Carrying Value Principal Amount Weighted Average Interest Rate (1) June 30, 2023 $ 48,336,904 $ 48,847,370 4.89 % December 31, 2022 $ 40,691,180 $ 41,007,526 3.95 % (1) Represents an implied rate without consideration of concessions.
Schedule of Maturities of Long-term Debt [Table Text Block]	Consolidated Bonds Outstanding by Original Contractual Maturity (dollars in thousands) June 30, 2023 December 31, 2022 Year of Original Contractual Maturity Amount Weighted Average Interest Rate Amount Weighted Average Interest Rate Due in 1 year or less $ 77,660,580 4.98 % $ 48,105,620 4.00 % Due after 1 year through 2 years 7,211,000 4.13 3,056,405 2.97 Due after 2 years through 3 years 2,202,000 1.71 2,815,000 1.70 Due after 3 years through 4 years 1,168,500 2.07 934,000 1.97 Due after 4 years through 5 years 1,312,500 2.17 1,586,000 1.94 Thereafter 3,590,140 3.11 3,246,140 2.83 Total principal amount 93,144,720 4.69 59,743,165 3.69 Premiums 31,822 28,958 Discounts (21,169) (18,716) Fair value hedging adjustments (36,165) (41,745) Fair value option valuation adjustment and accrued interest 93,317 (43,917) Total $ 93,212,525 $ 59,667,745 Year of Original Contractual Maturity or Next Call Date June 30, 2023 December 31, 2022 Due in 1 year or less $ 83,550,580 $ 54,465,620 Due after 1 year through 2 years 5,462,000 1,543,405 Due after 2 years through 3 years 886,000 803,000 Due after 3 years through 4 years 272,500 571,000 Due after 4 years through 5 years 412,500 258,000 Thereafter 2,561,140 2,102,140 Total principal amount $ 93,144,720 $ 59,743,165
Schedule Of Consolidated Obligation Bonds By Call Feature [Table Text Block]	Consolidated Bonds Outstanding by Call Features (in thousands) June 30, 2023 December 31, 2022 Principal Amount of Consolidated Bonds: Non-callable $ 70,032,720 $ 49,628,665 Callable 23,112,000 10,114,500 Total principal amount $ 93,144,720 $ 59,743,165 June 30, 2023 December 31, 2022 Principal Amount of Consolidated Bonds: Fixed-rate $ 32,872,720 $ 19,797,165 Variable-rate 60,272,000 39,621,000 Step-up — 325,000 Total principal amount $ 93,144,720 $ 59,743,165

Affordable Housing Program (A_2

Affordable Housing Program (AHP) (Tables)	6 Months Ended
	Jun. 30, 2023
Affordable Housing Program (AHP) [Abstract]
Schedule of Activity in Affordable Housing Program Obligation [Table Text Block]	Rollforward of the AHP Liability (in thousands) Balance at December 31, 2022 $ 87,923 Assessments (current year additions) 38,466 Voluntary contribution 7,307 Subsidy uses, net (12,409) Balance at June 30, 2023 $ 121,287

Capital (Tables)

Capital (Tables)	6 Months Ended
	Jun. 30, 2023
Banking Regulation, Total Capital [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Capital Requirements (dollars in thousands) June 30, 2023 December 31, 2022 Minimum Requirement Actual Minimum Requirement Actual Risk-based capital $ 1,223,534 $ 7,446,696 $ 920,030 $ 6,569,024 Capital-to-assets ratio (regulatory) 4.00 % 4.93 % 4.00 % 6.05 % Regulatory capital $ 6,045,176 $ 7,446,696 $ 4,344,380 $ 6,569,024 Leverage capital-to-assets ratio (regulatory) 5.00 % 7.39 % 5.00 % 9.07 % Leverage capital $ 7,556,470 $ 11,170,044 $ 5,430,475 $ 9,853,536
Schedule of Mandatorily Redeemable Capital Stock by Maturity Date [Table Text Block]	Rollforward of Mandatorily Redeemable Capital Stock (in thousands) Balance, December 31, 2022 $ 17,453 Capital stock subject to mandatory redemption reclassified from equity 313,383 Repurchase/redemption of mandatorily redeemable capital stock (314,871) Balance, June 30, 2023 $ 15,965 Contractual Year of Redemption June 30, 2023 December 31, 2022 Year 1 $ — $ 1,148 Year 2 9 29 Year 3 — 5 Year 4 8,297 5,853 Year 5 560 3,313 Past contractual redemption date due to remaining activity (1) 7,099 7,105 Total $ 15,965 $ 17,453 (1) Represents mandatorily redeemable capital stock that is past the end of the contractual redemption period because there is activity outstanding to which the mandatorily redeemable capital stock relates.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive (Loss) Income (Tables)	6 Months Ended
	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated Other Comprehensive Income (Loss) (in thousands) Net unrealized gains (losses) on available-for-sale securities Pension and postretirement benefits Total accumulated other comprehensive income (loss) BALANCE, MARCH 31, 2022 $ (11,647) $ (12,522) $ (24,169) Other comprehensive income before reclassification: Net unrealized gains (losses) (9,988) — (9,988) Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — 509 509 Net current period other comprehensive income (loss) (9,988) 509 (9,479) BALANCE, JUNE 30, 2022 $ (21,635) $ (12,013) $ (33,648) BALANCE, MARCH 31, 2023 $ (51,772) $ (712) $ (52,484) Other comprehensive income before reclassification: Net unrealized gains (losses) 18,408 — 18,408 Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — (98) (98) Net current period other comprehensive income (loss) 18,408 (98) 18,310 BALANCE, JUNE 30, 2023 $ (33,364) $ (810) $ (34,174) Net unrealized gains (losses) on available-for-sale securities Pension and postretirement benefits Total accumulated other comprehensive income (loss) BALANCE, DECEMBER 31, 2021 $ 26,125 $ (13,031) $ 13,094 Other comprehensive income before reclassification: Net unrealized gains (losses) (47,760) — (47,760) Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — 1,018 1,018 Net current period other comprehensive income (loss) (47,760) 1,018 (46,742) BALANCE, JUNE 30, 2022 $ (21,635) $ (12,013) $ (33,648) BALANCE, DECEMBER 31, 2022 $ (48,726) $ (614) $ (49,340) Other comprehensive income before reclassification: Net unrealized gains (losses) 15,362 — 15,362 Reclassifications from other comprehensive income (loss) to net income: Amortization - pension and postretirement benefits (1) — (196) (196) Net current period other comprehensive income (loss) 15,362 (196) 15,166 BALANCE, JUNE 30, 2023 $ (33,364) $ (810) $ (34,174) (1) Included in Non-Interest Expense - Other in the Statements of Income.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Financial Performance by Operating Segment (in thousands) Three Months Ended June 30, Traditional Member MPP Total 2023 Net interest income (loss) $ 211,488 $ 35,152 $ 246,640 Non-interest income (loss) 37,645 (726) 36,919 Non-interest expense 37,070 4,659 41,729 Income (loss) before assessments 212,063 29,767 241,830 Affordable Housing Program assessments 21,304 2,977 24,281 Net income (loss) $ 190,759 $ 26,790 $ 217,549 2022 Net interest income (loss) $ 59,827 $ 11,296 $ 71,123 Non-interest income (loss) (2,534) 2,634 100 Non-interest expense 23,371 2,686 26,057 Income (loss) before assessments 33,922 11,244 45,166 Affordable Housing Program assessments 3,475 1,124 4,599 Net income (loss) $ 30,447 $ 10,120 $ 40,567 Six Months Ended June 30, Traditional Member MPP Total 2023 Net interest income (loss) $ 357,977 $ 68,864 $ 426,841 Non-interest income (loss) 31,641 (5,100) 26,541 Non-interest expense 62,519 7,436 69,955 Income (loss) before assessments 327,099 56,328 383,427 Affordable Housing Program assessments 32,833 5,633 38,466 Net income (loss) $ 294,266 $ 50,695 $ 344,961 2022 Net interest income (loss) $ 137,202 $ 14,711 $ 151,913 Non-interest income (loss) (34,646) (2,447) (37,093) Non-interest expense 46,122 5,538 51,660 Income (loss) before assessments 56,434 6,726 63,160 Affordable Housing Program assessments 5,810 672 6,482 Net income (loss) $ 50,624 $ 6,054 $ 56,678 Assets Traditional Member MPP Total June 30, 2023 $ 142,256,860 $ 8,872,537 $ 151,129,397 December 31, 2022 99,649,867 8,959,637 108,609,504

Fair Value Disclosures Fair Val

Fair Value Disclosures Fair Value (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping [Table Text Block]	Fair Value Summary (in thousands) June 30, 2023 Fair Value Financial Instruments Carrying Value (1) Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Assets: Cash and due from banks $ 20,274 $ 20,274 $ 20,274 $ — $ — $ — Interest-bearing deposits 2,245,131 2,245,131 — 2,245,131 — — Securities purchased under agreements to resell 12,205,490 12,205,494 — 12,205,494 — — Federal funds sold 14,153,000 14,153,000 — 14,153,000 — — Trading securities 1,728,492 1,728,492 — 1,728,492 — — Available-for-sale securities 9,692,947 9,692,947 — 9,692,947 — — Held-to-maturity securities 15,833,684 15,516,658 — 15,516,658 — — Advances (3) 86,890,470 86,859,905 — 86,859,905 — — Mortgage loans held for portfolio 6,996,186 6,230,181 — 6,220,785 9,396 — Accrued interest receivable 635,623 635,623 — 635,623 — — Derivative assets 701,758 701,758 — 129,491 — 572,267 Liabilities: Deposits 1,151,572 1,151,255 — 1,151,255 — — Consolidated Obligations: Discount Notes (4) 48,336,904 48,328,883 — 48,328,883 — — Bonds (5) 93,212,525 92,192,711 — 92,192,711 — — Mandatorily redeemable capital stock 15,965 15,965 15,965 — — — Accrued interest payable 463,628 463,628 — 463,628 — — Derivative liabilities 152 152 — 89,081 — (88,929) (1) For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses. (2) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. (3) Includes (in thousands) $103,313 of Advances recorded under the fair value option at June 30, 2023. (4) Includes (in thousands) $15,143,932 of Consolidated Obligation Discount Notes recorded under the fair value option at June 30, 2023. (5) Includes (in thousands) $19,291,817 of Consolidated Obligation Bonds recorded under the fair value option at June 30, 2023. December 31, 2022 Fair Value Financial Instruments Carrying Value (1) Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Assets: Cash and due from banks $ 19,604 $ 19,604 $ 19,604 $ — $ — $ — Interest-bearing deposits 1,770,194 1,770,194 — 1,770,194 — — Securities purchased under agreements to resell 519,540 519,545 — 519,545 — — Federal funds sold 5,399,000 5,399,000 — 5,399,000 — — Trading securities 1,979,816 1,979,816 — 1,979,816 — — Available-for-sale securities 8,631,765 8,631,765 — 8,631,765 — — Held-to-maturity securities 15,304,359 14,983,043 — 14,983,043 — — Advances (3) 67,019,555 66,907,691 — 66,907,691 — — Mortgage loans held for portfolio 7,162,509 6,272,030 — 6,259,805 12,225 — Accrued interest receivable 283,132 283,132 — 283,132 — — Derivative assets 490,560 490,560 — 50,792 — 439,768 Liabilities: Deposits 1,039,427 1,038,580 — 1,038,580 — — Consolidated Obligations: Discount Notes (4) 40,691,180 40,680,714 — 40,680,714 — — Bonds (5) 59,667,745 58,698,959 — 58,698,959 — — Mandatorily redeemable capital stock 17,453 17,453 17,453 — — — Accrued interest payable 290,194 290,194 — 290,194 — — Derivative liabilities 460 460 — 88,045 — (87,585) (1) For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses. (2) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. (3) Includes (in thousands) $4,954 of Advances recorded under the fair value option at December 31, 2022. (4) Includes (in thousands) $21,010,746 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2022. (5) Includes (in thousands) $5,469,583 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2022.
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	Fair Value Measurements (in thousands) Fair Value Measurements at June 30, 2023 Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Recurring fair value measurements - Assets Trading securities: U.S. Treasury obligations $ 244,612 $ — $ 244,612 $ — $ — GSE obligations 1,483,801 — 1,483,801 — — U.S. obligation single-family MBS 79 — 79 — — Total trading securities 1,728,492 — 1,728,492 — — Available-for-sale securities: U.S. Treasury obligations 7,451,660 — 7,451,660 — — GSE obligations 117,837 — 117,837 — — GSE multi-family MBS 2,123,450 — 2,123,450 — — Total available-for-sale securities 9,692,947 — 9,692,947 — — Advances 103,313 — 103,313 — — Derivative assets: Interest rate related 701,721 — 129,454 — 572,267 Mortgage delivery commitments 37 — 37 — — Total derivative assets 701,758 — 129,491 — 572,267 Total assets at fair value $ 12,226,510 $ — $ 11,654,243 $ — $ 572,267 Recurring fair value measurements - Liabilities Consolidated Obligations: Discount Notes $ 15,143,932 $ — $ 15,143,932 $ — $ — Bonds 19,291,817 — 19,291,817 — — Total Consolidated Obligations 34,435,749 — 34,435,749 — — Derivative liabilities: Interest rate related — — 88,929 — (88,929) Mortgage delivery commitments 152 — 152 — — Total derivative liabilities 152 — 89,081 — (88,929) Total liabilities at fair value $ 34,435,901 $ — $ 34,524,830 $ — $ (88,929) (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty. Fair Value Measurements at December 31, 2022 Total Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Recurring fair value measurements - Assets Trading securities: U.S. Treasury obligations $ 491,464 $ — $ 491,464 $ — $ — GSE obligations 1,488,235 — 1,488,235 — — U.S. obligation single-family MBS 117 — 117 — — Total trading securities 1,979,816 — 1,979,816 — — Available-for-sale securities: U.S. Treasury obligations 7,194,271 — 7,194,271 — — GSE obligations 118,082 — 118,082 — — GSE multi-family MBS 1,319,412 — 1,319,412 — — Total available-for-sale securities 8,631,765 — 8,631,765 — — Advances 4,954 — 4,954 — — Derivative assets: Interest rate related 490,548 — 50,780 — 439,768 Mortgage delivery commitments 12 — 12 — — Total derivative assets 490,560 — 50,792 — 439,768 Total assets at fair value $ 11,107,095 $ — $ 10,667,327 $ — $ 439,768 Recurring fair value measurements - Liabilities Consolidated Obligations: Discount Notes $ 21,010,746 $ — $ 21,010,746 $ — $ — Bonds 5,469,583 — 5,469,583 — — Total Consolidated Obligations 26,480,329 — 26,480,329 — — Derivative liabilities: Interest rate related 372 — 87,957 — (87,585) Mortgage delivery commitments 88 — 88 — — Total derivative liabilities 460 — 88,045 — (87,585) Total liabilities at fair value $ 26,480,789 $ — $ 26,568,374 $ — $ (87,585) (1) Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.
Fair Value Option, Disclosures [Table Text Block]	Fair Value Option - Financial Assets and Liabilities (in thousands) Three Months Ended June 30, Six Months Ended June 30, Net Gains (Losses) from Changes in Fair Value Recognized in Earnings 2023 2022 2023 2022 Advances $ (1,568) $ (842) $ (1,535) $ (2,282) Consolidated Discount Notes 16,214 29,094 (334) 38,294 Consolidated Bonds 45,789 32,501 27,492 43,419 Total net gains (losses) $ 60,435 $ 60,753 $ 25,623 $ 79,431 June 30, 2023 December 31, 2022 Aggregate Unpaid Principal Balance Aggregate Fair Value Aggregate Fair Value Over/(Under) Aggregate Unpaid Principal Balance Aggregate Unpaid Principal Balance Aggregate Fair Value Aggregate Fair Value Over/(Under) Aggregate Unpaid Principal Balance Advances $ 104,620 $ 103,313 $ (1,307) $ 5,000 $ 4,954 $ (46) Consolidated Discount Notes 15,281,352 15,143,932 (137,420) 21,182,801 21,010,746 (172,055) Consolidated Bonds 19,198,500 19,291,817 93,317 5,513,500 5,469,583 (43,917)

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Commitments [Table Text Block]	Off-Balance Sheet Commitments (in thousands) June 30, 2023 December 31, 2022 Notional Amount Expire within one year Expire after one year Total Expire within one year Expire after one year Total Letters of Credit $ 45,345,606 $ 392,604 $ 45,738,210 $ 41,122,833 $ 222,439 $ 41,345,272 Commitments for standby bond purchases — — — 11,015 — 11,015 Commitments to purchase mortgage loans 65,176 — 65,176 14,291 — 14,291 Unsettled Consolidated Bonds, principal amount (1) — — — 3,000,000 — 3,000,000 Unsettled Consolidated Discount Notes, principal amount (1) — — — 182,205 — 182,205 (1) Expiration is based on settlement period rather than underlying contractual maturity of Consolidated Obligations.

Transactions with Other FHLBa_2

Transactions with Other FHLBanks (Tables)	6 Months Ended
	Jun. 30, 2023
Other FHLBanks [Member]
Schedule of Other Transactions [Line Items]
Schedule of Other Transactions by Balance Sheet Grouping [Table Text Block]	Lending and Borrowing Between the FHLB and Other FHLBanks (in thousands) Average Daily Balances for the Six Months Ended June 30, 2023 2022 Loans to other FHLBanks $ 34,530 $ 16,851

Transactions with Stockholders

Transactions with Stockholders (Tables)	6 Months Ended
	Jun. 30, 2023
Schedule of Other Transactions [Line Items]
Schedule of Transactions with Members and Former Members [Table Text Block]	Stockholders Holding Five Percent or more of Regulatory Capital Stock (dollars in millions) Regulatory Capital Stock Advance MPP Unpaid June 30, 2023 Balance % of Total Principal Principal Balance U.S. Bank, N.A. $ 1,454 25 % $ 20,500 $ 7 Keybank, N.A. 813 14 15,339 — The Huntington National Bank 403 7 6,501 344 Fifth Third Bank 339 6 5,301 — First Horizon Bank 327 6 4,340 — Regulatory Capital Stock Advance MPP Unpaid December 31, 2022 Balance % of Total Principal Principal Balance U.S. Bank, N.A. $ 1,293 25 % $ 19,000 $ 8 Keybank, N.A. 670 13 11,344 — Fifth Third Bank 381 7 4,301 — The Huntington National Bank 303 6 1,702 348
Director [Member]
Schedule of Other Transactions [Line Items]
Schedule of Other Transactions by Balance Sheet Grouping [Table Text Block]	Transactions with Directors' Financial Institutions (dollars in millions) June 30, 2023 December 31, 2022 Balance % of Total (1) Balance % of Total (1) Advances $ 3,185 3.6 % $ 22,009 32.6 % MPP 10 0.1 56 0.8 Regulatory capital stock 203 3.5 1,501 29.0

Background Information (Details

Background Information (Details)	Jun. 30, 2023 Banks
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of Federal Home Loan Banks	11

Investments Narrative (Details)

Investments Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Securities Purchased under Agreements to Resell, Allowance for Credit Loss	$ 0		$ 0
Debt Securities, Available-for-sale, Realized Gain (Loss)	0	$ 0
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss), Excluding Other-than-temporary Impairment	0	$ 0
Debt Securities, Available-for-Sale, Amortized Cost, Allowance for Credit Loss, Excluding Accrued Interest	0		0
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0		0
Interest-bearing Deposits [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss	0		0
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss	$ 9,627		$ 5,524
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable
Federal Funds Sold [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss	$ 0		$ 0
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss	$ 1,993		$ 1,299
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable
Securities Borrowed or Purchased under Agreements to Resell [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss	$ 1,793		$ 232
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable

Investments Trading Securities

Investments Trading Securities by Major Security Type (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 1,728,492	$ 1,979,816
US Treasury Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	244,612	491,464
US Government-sponsored Enterprises Debt Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	1,483,801	1,488,235
Other Than Mortgage Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	1,728,413	1,979,699
Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	79	117
Collateralized Mortgage Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 79	$ 117

Investments Trading Securitie_2

Investments Trading Securities Net Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Trading, Unrealized Gain (Loss)	$ (27,033)	$ (82,502)	$ (2,693)	$ (225,331)
Debt Securities, Trading, Realized Gain (Loss)	387	(5,321)	1,407	(22,655)
Debt Securities, Trading, Gain (Loss)	$ (26,646)	$ (87,823)	$ (1,286)	$ (247,986)

Investments AFS Securities by M

Investments AFS Securities by Major Security Type (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	$ 9,726,311	$ 8,680,491
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		11,279	4,310
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(44,643)	(53,036)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947	8,631,765
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss		$ 38,902	$ 40,246
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable	Accrued interest receivable
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	$ 7,446,523	$ 7,202,715
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		7,858	3,584
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(2,721)	(12,028)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		7,451,660	7,194,271
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	117,165	117,555
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		741	726
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(69)	(199)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		117,837	118,082
Other Than Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	7,563,688	7,320,270
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		8,599	4,310
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(2,790)	(12,227)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		7,569,497	7,312,353
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	2,162,623	1,360,221
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		2,680	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(41,853)	(40,809)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		2,123,450	1,319,412
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	2,162,623	1,360,221
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		2,680	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax		(41,853)	(40,809)
Debt Securities, Available-for-Sale, Excluding Accrued Interest		$ 2,123,450	$ 1,319,412
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively.

Investments AFS Securities in a

Investments AFS Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 2,688,489	$ 5,594,203
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(9,137)	(34,746)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,903,706	359,991
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(35,506)	(18,290)
Debt Securities, Available-for-sale, Unrealized Loss Position	4,592,195	5,954,194
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(44,643)	(53,036)
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,812,209	4,624,895
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,225)	(12,028)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	885,591	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,496)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	2,697,800	4,624,895
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,721)	(12,028)
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	3,677	9,887
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(7)	(199)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	4,401	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(62)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	8,078	9,887
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(69)	(199)
Other Than Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,815,886	4,634,782
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,232)	(12,227)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	889,992	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,558)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	2,705,878	4,634,782
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,790)	(12,227)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	872,603	959,421
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(7,905)	(22,519)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,013,714	359,991
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(33,948)	(18,290)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,886,317	1,319,412
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(41,853)	(40,809)
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	872,603	959,421
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(7,905)	(22,519)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,013,714	359,991
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(33,948)	(18,290)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,886,317	1,319,412
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (41,853)	$ (40,809)

Investments AFS Securities by C

Investments AFS Securities by Contractual Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	$ 9,726,311	$ 8,680,491
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Total		9,692,947	8,631,765
Other Than Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost		0	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost		4,824,447	2,576,167
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost		2,729,095	4,734,017
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost		10,146	10,086
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	7,563,688	7,320,270
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value		0	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value		4,828,548	2,577,121
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value		2,730,862	4,725,345
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value		10,087	9,887
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Total		7,569,497	7,312,353
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	2,162,623	1,360,221
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost	[2]	2,162,623	1,360,221
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Total		2,123,450	1,319,412
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value	[2]	$ 2,123,450	$ 1,319,412
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively.[2]MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

Investments AFS Securities by I

Investments AFS Securities by Interest Rate Payment Terms (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	$ 9,726,311	$ 8,680,491
Other Than Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	7,563,688	7,320,270
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	2,162,623	1,360,221
Fixed-rate [Member] | Other Than Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss		7,563,688	7,320,270
Fixed-rate [Member] | Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss		$ 2,162,623	$ 1,360,221
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $38,902 and $40,246 at June 30, 2023 and December 31, 2022, respectively.

Investments HTM Securities by M

Investments HTM Securities by Major Security Type (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	$ 15,833,684	$ 15,304,359
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss	[2]	15,833,684	15,304,359
Held-to-maturity Securities, Unrecognized Holding Gain		3,257	4,672
Held-to-maturity Securities, Unrecognized Holding Loss		(320,283)	(325,988)
Debt Securities, Held-to-maturity, Fair Value		15,516,658	14,983,043
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss		$ 60,752	$ 48,937
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable	Accrued interest receivable
US Government-sponsored Enterprises Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	$ 47,749
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		47,749
Held-to-maturity Securities, Unrecognized Holding Gain		4
Held-to-maturity Securities, Unrecognized Holding Loss		0
Debt Securities, Held-to-maturity, Fair Value		47,753
US Treasury Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]		$ 47,405
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss			47,405
Held-to-maturity Securities, Unrecognized Holding Gain			0
Held-to-maturity Securities, Unrecognized Holding Loss			(51)
Debt Securities, Held-to-maturity, Fair Value			47,354
Other Than Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	47,749	47,405
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		47,749	47,405
Held-to-maturity Securities, Unrecognized Holding Gain		4	0
Held-to-maturity Securities, Unrecognized Holding Loss		0	(51)
Debt Securities, Held-to-maturity, Fair Value		47,753	47,354
Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	1,172,846	1,232,001
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		1,172,846	1,232,001
Held-to-maturity Securities, Unrecognized Holding Gain		0	0
Held-to-maturity Securities, Unrecognized Holding Loss		(147,234)	(147,423)
Debt Securities, Held-to-maturity, Fair Value		1,025,612	1,084,578
Collateralized Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	15,785,935	15,256,954
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		15,785,935	15,256,954
Held-to-maturity Securities, Unrecognized Holding Gain		3,253	4,672
Held-to-maturity Securities, Unrecognized Holding Loss		(320,283)	(325,937)
Debt Securities, Held-to-maturity, Fair Value		15,468,905	14,935,689
Single Family [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	2,314,864	1,632,099
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		2,314,864	1,632,099
Held-to-maturity Securities, Unrecognized Holding Gain		2,239	4,074
Held-to-maturity Securities, Unrecognized Holding Loss		(106,383)	(101,140)
Debt Securities, Held-to-maturity, Fair Value		2,210,720	1,535,033
Multifamily [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[1]	12,298,225	12,392,854
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		12,298,225	12,392,854
Held-to-maturity Securities, Unrecognized Holding Gain		1,014	598
Held-to-maturity Securities, Unrecognized Holding Loss		(66,666)	(77,374)
Debt Securities, Held-to-maturity, Fair Value		$ 12,232,573	$ 12,316,078
[1]Carrying value equals amortized cost. Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of (in thousands) $60,752 and $48,937 as of June 30, 2023 and December 31, 2022, respectively.[2]Carrying value equals amortized cost.

Investments HTM Securitites by

Investments HTM Securitites by Contractual Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total	[1]	$ 15,833,684	$ 15,304,359
Debt Securities, Held-to-maturity, Fair Value		15,516,658	14,983,043
Other Than Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
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	[1]	47,749	47,405
Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years	[1]	0	0
Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years	[1]	0	0
Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years	[1]	0	0
Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date	[1]	47,749	47,405
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total		47,749	47,405
Held-to-maturity Securities, Debt Maturities, within One Year, Fair Value		47,753	47,354
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value		0	0
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value		0	0
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value		0	0
Debt Securities, Held-to-maturity, Fair Value		47,753	47,354
Collateralized Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Amortized Cost Excluding Accrued Interest, after Allowance for Credit Loss, Maturity, without Single Maturity Date	[1],[2]	15,785,935	15,256,954
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss, Total		15,785,935	15,256,954
Debt Securities, Held-to-maturity, Fair Value		15,468,905	14,935,689
Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value	[2]	$ 15,468,905	$ 14,935,689
[1]Carrying value equals amortized cost.[2]MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

Investments HTM Securities by I

Investments HTM Securities by Interest Rate Payment Terms (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	$ 15,833,684	$ 15,304,359
Other Than Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	47,749	47,405
Collateralized Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	15,785,935	15,256,954
Fixed-rate [Member] | Other Than Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss		47,749	47,405
Fixed-rate [Member] | Collateralized Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss		3,342,181	2,709,494
Variable-rate [Member] | Collateralized Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss		$ 12,443,754	$ 12,547,460
[1]Carrying value equals amortized cost. Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of (in thousands) $60,752 and $48,937 as of June 30, 2023 and December 31, 2022, respectively.

Advances Narrative (Details)

Advances Narrative (Details) - Federal Home Loan Bank Advances Receivable [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Federal Home Loan Bank, Advances [Line Items]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	$ 0		$ 0
Impaired Financing Receivable, Unpaid Principal Balance	0		0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	0	$ 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	0		0
Financial Asset, Past Due
Federal Home Loan Bank, Advances [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 0		$ 0

Advances (Advance Redemption Te

Advances (Advance Redemption Terms) (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances [Line Items]
Overdrawn demand deposit accounts		$ 1,606	$ 0
Due in 1 year or less		60,453,871	51,491,191
Due after 1 year through 2 years		10,743,878	5,904,109
Due after 2 years through 3 years		5,854,782	2,969,160
Due after 3 years through 4 years		4,007,375	2,418,222
Due after 4 years through 5 years		4,440,625	2,462,903
Thereafter		1,899,839	2,182,434
Federal Home Loan Bank, Advances, Par Value, Total		87,401,976	67,428,019
Commitment Fees on Advances		(87)	(90)
Federal Home Loan Bank Advances, Discount		(1,740)	(2,073)
Hedging adjustments		(508,372)	(406,255)
Federal Home Loan Bank, Advances, Valuation Adjustments under Fair Value Option		(1,307)	(46)
Advances	[1]	$ 86,890,470	$ 67,019,555
Weighted Average Interest Rate on Overdrawn Demand Deposit		5.58%	0%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing Within One Year of Balance Sheet Date		5.29%	4.36%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing From One To Two Years of Balance Sheet Date		4.88%	3.69%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing From Two To Three Years of Balance Sheet Date		4.99%	4.01%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing From Three To Four Years of Balance Sheet Date		3.64%	4.14%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing From Four To Five Years of Balance Sheet Date		3.94%	3.28%
Federal Home Loan Bank Advances, Weighted Average Interest Rate of Amounts Maturing After Five Years of Balance Sheet Date		2.49%	2.29%
Federal Home Loan Bank Advances, Weighted Average Interest Rate As Of Balance Sheet Date		5.02%	4.17%
Federal Home Loan Bank Advances Receivable [Member]
Federal Home Loan Bank, Advances [Line Items]
Financing Receivable, Accrued Interest, after Allowance for Credit Loss		$ 486,408	$ 149,255
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable	Accrued interest receivable
[1]Carrying values exclude accrued interest receivable of (in thousands) $486,408 and $149,255 as of June 30, 2023 and December 31, 2022, respectively.

Advances (Year of Contractual M

Advances (Year of Contractual Maturity or Next Call Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Advances [Abstract]
Overdrawn demand deposit accounts	$ 1,606	$ 0
Federal Home Loan Bank Advances, Earlier of Contractual Maturity or Next Call Date, Due With in Next Rolling Twelve Months	66,454,371	54,497,542
Federal Home Loan Bank Advances Earlier of Contractual Maturity or Next Call Date Due in Rolling Year Two	7,743,378	5,901,058
Federal Home Loan Bank Advances Earlier of Contractual Maturity or Next Call Date Due in Rolling Year Three	2,877,402	1,465,860
Federal Home Loan Bank Advances Earlier of Contractual Maturity or Next Call Date Due in Rolling Year Four	4,007,375	918,222
Federal Home Loan Bank Advances Earlier of Contractual Maturity or Next Call Date Due in Rolling Year Five	4,418,005	2,462,903
Federal Home Loan Bank Advances Earlier of Contractual Maturity or Next Call Date Due After Rolling Year Five	1,899,839	2,182,434
Federal Home Loan Bank, Advances, Par Value, Total	$ 87,401,976	$ 67,428,019

Advances (Advances by Year of C

Advances (Advances by Year of Contractual Maturity or Next Put/Convert Date for Putable/Convertible Advances) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Advances [Abstract]
Overdrawn demand deposit accounts	$ 1,606	$ 0
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due within One Year of Balance Sheet Date	61,073,871	52,461,191
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due From One To Two Years of Balance Sheet Date	10,773,878	5,929,109
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due From Two To Three Years of Balance Sheet Date	5,909,782	2,989,160
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due From Three To Four Years of Balance Sheet Date	4,007,375	2,418,222
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due From Four To Five Years of Balance Sheet Date	4,415,625	2,382,903
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put Date, Due After Five Years of Balance Sheet Date	1,219,839	1,247,434
Federal Home Loan Bank, Advances, Par Value, Total	$ 87,401,976	$ 67,428,019

Advances (Advances by Interest

Advances (Advances by Interest Rate Payment Terms) (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Advances [Abstract]
Federal Home Loan Bank Advances, Maturities by Interest Rate Type, Fixed Rate	[1]	$ 61,028,690	$ 51,461,334
Federal Home Loan Bank Advances, Maturities by Interest Rate Type, Floating Rate	[1]	26,373,286	15,966,685
Federal Home Loan Bank, Advances, Par Value, Total		$ 87,401,976	$ 67,428,019
[1]Payment terms based on current interest rate terms, which reflect any option exercises or rate conversions that have occurred subsequent to the related Advance issuance.

Advances (Borrowers Holding Fiv

Advances (Borrowers Holding Five Percent or more of Total Advances) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 87,401,976	$ 67,428,019
Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 53,069,000	$ 42,607,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	60%	63%
U.S. Bank, N.A. [Member] | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 20,500,000	$ 19,000,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	23%	28%
Keybank National Association | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 15,339,000	$ 11,344,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	18%	17%
The Huntington National Bank | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 6,501,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	7%
Third Federal Savings and Loan Association [Member] | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 5,428,000	$ 4,826,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	6%	7%
Fifth Third Bank | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 5,301,000	$ 4,301,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance	6%	6%
Nationwide Life Insurance Company [Member] | Federal Home Loan Bank Borrower Advances, Five Percent Or More Of Principal Balance [Member]
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank, Advances, Par Value		$ 3,136,000
Concentration Risk, Percentage, Five Percent or More Of Principal Balance		5%

Mortgage Loans Narrative (Detai

Mortgage Loans Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Real Estate Acquired Through Foreclosure	$ 0	$ 0	$ 0
Mortgage Purchase Program [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	1,543	2,878
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	338	338	301
Conventional Mortgage Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	$ 338	$ 338	$ 301

Mortgage Loans Mortgage Loans H

Mortgage Loans Mortgage Loans Held for Portfolio (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Unamortized Premiums		$ 145,964	$ 151,756
Loans and Leases Receivable, Unamortized Discounts		(2,353)	(2,246)
Loans and Leases Receivable, Hedging Basis Adjustment	[1]	6,238	6,819
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss, Total		6,996,186	7,162,509
Conventional Mortgage Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		6,741,813	6,893,552
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total		6,890,914	7,049,049
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest		(338)	(301)
Federal Housing Administration Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		104,862	112,929
Mortgage Purchase Program [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		6,846,675	7,006,481
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	[2]	6,996,524	7,162,810
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest		(338)	(301)
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss, Total		6,996,186	7,162,509
Financing Receivable, Accrued Interest, after Allowance for Credit Loss		$ 21,564	$ 21,846
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable	Accrued interest receivable
Single Family [Member] | Loans Receivable With Fixed Rates Of Interest Medium Term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	[3]	$ 487,009	$ 530,956
Single Family [Member] | Loans Receivable With Fixed Rates Of Interest Long Term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	[4]	$ 6,359,666	$ 6,475,525
[1]Represents the unamortized balance of the mortgage purchase commitments' market values at the time of settlement. The market value of the commitment is included in the basis of the mortgage loan and amortized accordingly.[2]Excludes accrued interest receivable of (in thousands) $21,564 and $21,846 at June 30, 2023 and December 31, 2022, respectively.[3]Medium-term is defined as a term of 15 years or less.[4]Long-term is defined as a term of greater than 15 years up to 30 years.

Mortgage Loans Members with Fiv

Mortgage Loans Members with Five Percent or More of Mortgage Loans (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Union Savings Bank [Member]
Participating Mortgage Loans [Line Items]
Unpaid Principal Balances Greater Than Five Percent of Total	$ 1,576	$ 1,651
Percent of Total	23%	24%
FirstBank [Member]
Participating Mortgage Loans [Line Items]
Unpaid Principal Balances Greater Than Five Percent of Total	$ 728	$ 730
Percent of Total	11%	10%
Guardian Saving Bank FSB [Member]
Participating Mortgage Loans [Line Items]
Unpaid Principal Balances Greater Than Five Percent of Total	$ 421	$ 438
Percent of Total	6%	6%
The Huntington National Bank
Participating Mortgage Loans [Line Items]
Unpaid Principal Balances Greater Than Five Percent of Total	$ 344
Percent of Total	5%

Mortgage Loans Mortgage Loans R

Mortgage Loans Mortgage Loans Rollforward of LRA (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Receivables [Abstract]
Lender Risk Account, Beginning Balance	$ 244,254
Lender Risk Account, Additions	1,626
Lender Risk Account, Claims	(160)
Lender Risk Account, Distributions	(3,629)
Lender Risk Account, Ending Balance	$ 242,091

Mortgage Loans Mortgage Loans P

Mortgage Loans Mortgage Loans Past Due (Details) - Conventional Mortgage Loan [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	$ 2,492,158	$ 2,428,287
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	4,398,756	4,620,762
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	6,890,914	7,049,049
Nonperforming Financial Instruments [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	28,743	24,197
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	10,787	19,873
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	39,530	44,070
Performing Financial Instruments [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	2,463,415	2,404,090
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	4,387,969	4,600,889
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	6,851,384	7,004,979
Past due 30-59 days delinquent
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	17,382	12,643
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	7,806	14,440
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	25,188	27,083
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	3,769	3,303
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	1,080	1,751
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	4,849	5,054
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	7,592	8,251
Financing Receivable, Originated, Current Fiscal Year and Preceding Four Fiscal Years	1,901	3,682
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Total	$ 9,493	$ 11,933

Mortgage Loans Mortgage Loans O

Mortgage Loans Mortgage Loans Other Delinquency Status (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	[1]	$ 5,995	$ 7,567
Loans and Leases Receivable, Serious Delinquencies Ratio	[2]	0.15%	0.19%
Mortgage Purchase Program [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Excluding Accrued Interest, 90 Days or More Past Due, Still Accruing	[3]	$ 9,842	$ 12,869
Financing Receivable, Excluding Accrued Interest, Nonaccrual	[4]	1,282	1,423
Conventional Mortgage Loan [Member]
Financing Receivable, Nonaccrual [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	[1]	$ 5,774	$ 7,206
Loans and Leases Receivable, Serious Delinquencies Ratio	[2]	0.14%	0.18%
Conventional Mortgage Loan [Member] | Mortgage Purchase Program [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Excluding Accrued Interest, 90 Days or More Past Due, Still Accruing	[3]	$ 8,998	$ 11,369
Financing Receivable, Excluding Accrued Interest, Nonaccrual	[4]	1,282	1,423
Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance		986	971
Federal Housing Administration Loan [Member]
Financing Receivable, Nonaccrual [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	[1]	$ 221	$ 361
Loans and Leases Receivable, Serious Delinquencies Ratio	[2]	0.80%	1.32%
Federal Housing Administration Loan [Member] | Mortgage Purchase Program [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Excluding Accrued Interest, 90 Days or More Past Due, Still Accruing	[3]	$ 844	$ 1,500
Financing Receivable, Excluding Accrued Interest, Nonaccrual	[4]	$ 0	$ 0
[1]Includes loans where the decision of foreclosure or a similar alternative such as pursuit of deed-in-lieu has been reported.[2]Loans that are 90 days or more past due or in the process of foreclosure (including past due or current loans in the process of foreclosure) expressed as a percentage of the total loan portfolio class.[3]Each conventional loan past due 90 days or more still accruing interest is on a schedule/scheduled monthly settlement basis and contains one or more credit enhancements. Loans that are well secured and in the process of collection as a result of remaining credit enhancements and schedule/scheduled settlement are not placed on non-accrual status.[4]At June 30, 2023 and December 31, 2022, (in thousands) $986 and $971, respectively, of conventional MPP loans on non-accrual status do not have a related allowance because these loans were either previously charged off to their expected recoverable value and/or the fair value of the underlying collateral, including any credit enhancements, is greater than the amortized cost of the loans.

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities Derivatives in Statement of Condition (Details) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		$ 65,458,809		$ 50,786,568
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		129,491		50,792
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		89,081		88,045
Derivative Asset, Netting Adjustments And Cash Collateral	[2]	572,267	[1]	439,768	[3]
Derivative Liability, Netting Adjustments And Cash Collateral	[2]	(88,929)	[1]	(87,585)	[3]
Derivative assets		701,758		490,560
Derivative liabilities		152		460
Derivative, Collateral, Cash Posted And Related Accrued Interest		718,724		533,270
Derivative, Collateral, Cash Received And Related Accrued Interest		57,528		5,917
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		28,677,397		21,577,007
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		10,375		37,175
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		52,849		32,630
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		36,291,236		28,840,270
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		114,688		5,839
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		36,080		55,327
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Swaption [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		425,000		355,000
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		4,391		7,766
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0		0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		36,781,412		29,209,561
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		119,116		13,617
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		36,232		55,415
Not Designated as Hedging Instrument [Member] | Forward Contracts [Member] | Mortgage Receivable [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Derivatives		65,176		14,291
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		37		12
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		$ 152		$ 88
[1]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[2]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively.[3]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities Derivatives in Statement of Income and Impact on Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Interest Income, Federal Home Loan Bank Advances	$ 1,439,257	$ 120,653	$ 2,335,866	$ 165,971
Interest Income, Debt Securities, Available-for-sale, Operating	129,326	16,944	236,437	21,962
Interest Expense, Consolidated Bonds	(1,086,138)	(119,330)	(1,728,134)	(194,405)
Interest Income [Member] | Advances [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Interest Settlements On Fair Value Hedges	84,234	(12,694)	141,883	(34,389)
Gain (Loss) on Derivative	255,292	111,768	93,061	334,259
Gain (Loss) on Hedged Item	(259,956)	(110,048)	(102,117)	(330,223)
Gain (Loss) on Fair Value Hedges Recognized in Earnings	79,570	(10,974)	132,827	(30,353)
Interest Income [Member] | Available-for-sale Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Interest Settlements On Fair Value Hedges	85,335	(10,392)	155,696	(23,926)
Gain (Loss) on Derivative	208,035	204,402	(11,659)	541,563
Gain (Loss) on Hedged Item	(217,129)	(205,960)	(7,857)	(543,229)
Gain (Loss) on Fair Value Hedges Recognized in Earnings	76,241	(11,950)	136,180	(25,592)
Interest Expense [Member] | Consolidated Obligation Bonds [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Interest Settlements On Fair Value Hedges	(8,064)	2,289	(15,923)	2,705
Gain (Loss) on Derivative	(5,913)	(11,999)	6,140	(22,778)
Gain (Loss) on Hedged Item	6,372	12,046	(5,580)	22,740
Gain (Loss) on Fair Value Hedges Recognized in Earnings	$ (7,605)	$ 2,336	$ (15,363)	$ 2,667

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities Derivative Fair Value Hedges (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Advances [Member]
Derivatives, Fair Value [Line Items]
Hedged Asset, Fair Value Hedge	[1]	$ 16,177,509	$ 10,199,624
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease)		(509,074)	(407,137)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		702	882
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)		(508,372)	(406,255)
Available-for-sale Securities [Member]
Derivatives, Fair Value [Line Items]
Hedged Asset, Fair Value Hedge	[1]	9,704,490	8,668,634
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease)		(996,983)	(989,810)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		14,102	13,932
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)		(982,881)	(975,878)
Consolidated Obligation Bonds [Member]
Derivatives, Fair Value [Line Items]
Hedged Liability, Fair Value Hedge	[1]	1,266,539	1,286,881
Hedged Liability, Active Fair Value Hedge, Cumulative Increase (Decrease)		(36,165)	(41,745)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		0	0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		$ (36,165)	$ (41,745)
[1]Includes only the portion of amortized cost representing the hedged items in fair value hedging relationships.

Derivatives and Hedging Activ_6

Derivatives and Hedging Activities Derivatives in Statement of Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		$ (4,363)	$ 20,369	$ (12,279)	$ 117,474
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		2,398	16,596	4,984	149,642
Interest Rate Swaption [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		(526)	5,470	(5,027)	6,558
Net Interest Settlements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		(4,932)	(267)	(9,941)	(31,441)
Forward Contracts [Member] | Mortgage Receivable [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		(200)	(1,441)	(73)	(7,324)
Derivatives Not Designated As Hedging Before Price Alignment [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments		(3,260)	20,358	(10,057)	117,435
Price Alignment Amount [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives not designated as hedging instruments	[1]	$ (1,103)	$ 11	$ (2,222)	$ 39
[1]This amount is for derivatives for which variation margin is characterized as a daily settled contract.

Derivatives and Hedging Activ_7

Derivatives and Hedging Activities Offsetting of Derivative Assets and Derivative Liabilities (Details) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative Asset, Netting Adjustments And Cash Collateral	[2]	$ 572,267	[1]	$ 439,768	[3]
Derivative assets		701,758		490,560
Derivative Liability, Netting Adjustments And Cash Collateral	[2]	(88,929)	[1]	(87,585)	[3]
Derivative liabilities		152		460
Uncleared derivatives
Offsetting Assets [Line Items]
Derivative Asset, Total Gross Amount		123,551		19,195
Derivative Asset, Netting Adjustments And Cash Collateral		(107,449)		(12,600)
Derivative Asset, Not Subject to Master Netting Arrangement	[4]	37		12
Derivative assets		16,139		6,607
Derivative Liability, Total Gross Amount		63,901		83,896
Derivative Liability, Netting Adjustments And Cash Collateral		(63,901)		(83,524)
Derivative Liability, Not Subject to Master Netting Arrangement	[4]	152		88
Derivative liabilities		152		460
Cleared derivatives
Offsetting Assets [Line Items]
Derivative Asset, Total Gross Amount		5,903		31,585
Derivative Asset, Netting Adjustments And Cash Collateral		679,716		452,368
Derivative Asset, Not Subject to Master Netting Arrangement	[4]	0		0
Derivative assets		685,619		483,953
Derivative Liability, Total Gross Amount		25,028		4,061
Derivative Liability, Netting Adjustments And Cash Collateral		(25,028)		(4,061)
Derivative Liability, Not Subject to Master Netting Arrangement	[4]	0		0
Derivative liabilities		$ 0		$ 0
[1]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[2]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively.[3]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[4]Includes mortgage delivery commitments that are not subject to an enforceable netting agreement.

Consolidated Obligations Discou

Consolidated Obligations Discount Notes (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Short-term Debt [Line Items]
Federal Home Loan Bank, Consolidated Obligations, Discount Notes		$ 48,336,904	$ 40,691,180
Discount Notes [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount		$ 48,847,370	$ 41,007,526
Short-term Debt, Weighted Average Interest Rate, at Point in Time	[1]	4.89%	3.95%
[1]Represents an implied rate without consideration of concessions.

Consolidated Obligations Bonds

Consolidated Obligations Bonds by Original Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Federal Home Loan Bank, Consolidated Obligations, Bonds	$ 93,212,525	$ 59,667,745
Consolidated Obligation Bonds [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	77,660,580	48,105,620
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	7,211,000	3,056,405
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	2,202,000	2,815,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	1,168,500	934,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	1,312,500	1,586,000
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	3,590,140	3,246,140
Long-term Debt, Gross	93,144,720	59,743,165
Debt Instrument, Unamortized Premium	31,822	28,958
Debt Instrument, Unamortized Discount	(21,169)	(18,716)
Debt Valuation Adjustment for Hedging Activities	(36,165)	(41,745)
Fair Value, Option, Aggregate Differences, Consolidated Obligation Bonds	93,317	(43,917)
Federal Home Loan Bank, Consolidated Obligations, Bonds	$ 93,212,525	$ 59,667,745
Debt, Maturities, Repayments of Principal in Next Twelve Months, Weighted Average Interest Rate	4.98%	4%
Long-term Debt, Maturities, Repayments of Principal in Year Two, Weighted Average Interest Rate	4.13%	2.97%
Long-term Debt, Maturities, Repayments of Principal in Year Three, Weighted Average Interest Rate	1.71%	1.70%
Long-term Debt, Maturities, Repayments of Principal in Year Four, Weighted Average Interest Rate	2.07%	1.97%
Long-term Debt, Maturities, Repayments of Principal in Year Five, Weighted Average Interest Rate	2.17%	1.94%
Long-term Debt, Maturities, Repayments of Principal After Year Five, Weighted Average Interest Rate	3.11%	2.83%
Long-term Debt, Weighted Average Interest Rate, at Point in Time	4.69%	3.69%

Consolidated Obligations Bond_2

Consolidated Obligations Bonds by Call Feature (Details) - Consolidated Obligation Bonds [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 93,144,720	$ 59,743,165
Noncallable or Nonputable [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	70,032,720	49,628,665
Callable [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 23,112,000	$ 10,114,500

Consolidated Obligations Bond_3

Consolidated Obligations Bonds by Contractual Maturity or Next Call Date (Details) - Consolidated Obligation Bonds [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	$ 77,660,580	$ 48,105,620
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	7,211,000	3,056,405
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	2,202,000	2,815,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	1,168,500	934,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	1,312,500	1,586,000
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	3,590,140	3,246,140
Long-term Debt, Gross	93,144,720	59,743,165
Earlier of Contractual Maturity or Next Call Date [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	83,550,580	54,465,620
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	5,462,000	1,543,405
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	886,000	803,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	272,500	571,000
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	412,500	258,000
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	$ 2,561,140	$ 2,102,140

Consolidated Obligations Bond_4

Consolidated Obligations Bonds by Interest-Rate Type (Details) - Consolidated Obligation Bonds [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 93,144,720	$ 59,743,165
Fixed-rate [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	32,872,720	19,797,165
Adjustable Interest Rate [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	60,272,000	39,621,000
Step-up Interest Rate
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0	$ 325,000

Affordable Housing Program (A_3

Affordable Housing Program (AHP) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Affordable Housing Program [Roll Forward]
AHP Obligation, Beginning Balance			$ 87,923
AHP, Expense (Current Year Additions)	$ 24,281	$ 4,599	38,466	$ 6,482
AHP Voluntary Contribution Expense			7,307
AHP, Subsidy Uses, Net			(12,409)	$ (11,510)
AHP Obligation, Ending Balance	$ 121,287		$ 121,287

Capital Narrative (Details)

Capital Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Banking Regulation, Total Capital [Abstract]
Retained Earnings, Appropriated	$ 629,111	$ 560,118

Capital (Details)

Capital (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Banking Regulation, Total Capital [Abstract]
Risk Based Capital Required	$ 1,223,534	$ 920,030
Risk Based Capital Actual	$ 7,446,696	$ 6,569,024
Regulatory Capital Ratio, Actual	4.93%	6.05%
Regulatory Capital, Required	$ 6,045,176	$ 4,344,380
Regulatory Capital, Actual	$ 7,446,696	$ 6,569,024
Leverage Ratio, Actual	7.39%	9.07%
Leverage Capital, Required	$ 7,556,470	$ 5,430,475
Leverage Capital, Actual	$ 11,170,044	$ 9,853,536

Capital (Mandatorily Redeemable

Capital (Mandatorily Redeemable Capital Stock) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Mandatorily Redeemable Capital Stock [Roll Forward]
Balance at beginning period	$ 17,453
Shares Reclassified to Mandatorily Redeemable Capital Stock, Value	313,383
Repayments of Mandatory Redeemable Capital Securities	(314,871)	$ (1,420,863)
Balance at end of period	$ 15,965

Capital (Mandatorily Redeemab_2

Capital (Mandatorily Redeemable Capital Stock by Contractual Year of Redemption) (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Banking Regulation, Total Capital [Abstract]
Due in 1 year or less		$ 0	$ 1,148
Due after 1 year through 2 years		9	29
Due after 2 years through 3 years		0	5
Due after 3 years through 4 years		8,297	5,853
Due after 4 years through 5 years		560	3,313
Past contractual redemption date due to remaining activity	[1]	7,099	7,105
Total par value		$ 15,965	$ 17,453
[1]Represents mandatorily redeemable capital stock that is past the end of the contractual redemption period because there is activity outstanding to which the mandatorily redeemable capital stock relates.

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		$ 8,007,206	$ 4,272,899	$ 6,502,231	$ 3,795,901
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		18,408	(9,988)	15,362	(47,760)
Total other comprehensive income (loss) adjustments		18,310	(9,479)	15,166	(46,742)
Ending balance		7,396,557	5,695,085	7,396,557	5,695,085
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		(51,772)	(11,647)	(48,726)	26,125
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		18,408	(9,988)	15,362	(47,760)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	[1]	0	0	0	0
Total other comprehensive income (loss) adjustments		18,408	(9,988)	15,362	(47,760)
Ending balance		(33,364)	(21,635)	(33,364)	(21,635)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		(712)	(12,522)	(614)	(13,031)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		0	0	0	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	[1]	(98)	509	(196)	1,018
Total other comprehensive income (loss) adjustments		(98)	509	(196)	1,018
Ending balance		(810)	(12,013)	(810)	(12,013)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		(52,484)	(24,169)	(49,340)	13,094
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		18,408	(9,988)	15,362	(47,760)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	[1]	(98)	509	(196)	1,018
Total other comprehensive income (loss) adjustments		18,310	(9,479)	15,166	(46,742)
Ending balance		$ (34,174)	$ (33,648)	$ (34,174)	$ (33,648)
[1]Included in Non-Interest Expense - Other in the Statements of Income.

Segment Information Financial P

Segment Information Financial Performance (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Segment	Jun. 30, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | Segment			2
Net interest income	$ 246,640	$ 71,123	$ 426,841	$ 151,913
Non-interest income (loss)	36,919	100	26,541	(37,093)
Non-interest expense	41,729	26,057	69,955	51,660
Income (loss) before assessments	241,830	45,166	383,427	63,160
Affordable Housing Program assessments	24,281	4,599	38,466	6,482
Net income	217,549	40,567	344,961	56,678
Traditional Member Finance [Member]
Segment Reporting Information [Line Items]
Net interest income	211,488	59,827	357,977	137,202
Non-interest income (loss)	37,645	(2,534)	31,641	(34,646)
Non-interest expense	37,070	23,371	62,519	46,122
Income (loss) before assessments	212,063	33,922	327,099	56,434
Affordable Housing Program assessments	21,304	3,475	32,833	5,810
Net income	190,759	30,447	294,266	50,624
Mortgage Purchase Program [Member]
Segment Reporting Information [Line Items]
Net interest income	35,152	11,296	68,864	14,711
Non-interest income (loss)	(726)	2,634	(5,100)	(2,447)
Non-interest expense	4,659	2,686	7,436	5,538
Income (loss) before assessments	29,767	11,244	56,328	6,726
Affordable Housing Program assessments	2,977	1,124	5,633	672
Net income	$ 26,790	$ 10,120	$ 50,695	$ 6,054

Segment Information Asset Balan

Segment Information Asset Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total assets	$ 151,129,397	$ 108,609,504
Traditional Member Finance [Member]
Segment Reporting Information [Line Items]
Total assets	142,256,860	99,649,867
Mortgage Purchase Program [Member]
Segment Reporting Information [Line Items]
Total assets	$ 8,872,537	$ 8,959,637

Fair Value Disclosures Narrativ

Fair Value Disclosures Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net	$ 0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net	$ 0	$ 0

Fair Value Disclosures Fair V_2

Fair Value Disclosures Fair Value Summary (Details) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Assets
Cash and Due from Banks		$ 20,274		$ 19,604
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss	[1]	15,833,684		15,304,359
Debt Securities, Held-to-maturity, Fair Value		15,516,658		14,983,043
Accrued interest receivable		635,623		283,132
Derivative assets		701,758		490,560
Derivative Asset, Netting Adjustments And Cash Collateral	[3]	572,267	[2]	439,768	[4]
Liabilities
Mandatorily redeemable capital stock		15,965		17,453
Accrued Interest Payable, Fair Value Disclosure		463,628		290,194
Derivative liabilities		152		460
Derivative Liability, Netting Adjustments And Cash Collateral	[3]	(88,929)	[2]	(87,585)	[4]
Fair Value Option Election
Assets
Advances, Fair Value Disclosure		103,313		4,954
Consolidated Obligation Bonds [Member] | Fair Value Option Election
Liabilities
Consolidated Obligations, Bonds		19,291,817		5,469,583
Discount Notes [Member] | Fair Value Option Election
Liabilities
Consolidated Obligations, Discount Notes		15,143,932		21,010,746
Fair Value, Inputs, Level 1 [Member]
Assets
Cash and Due from Banks		20,274		19,604
Interest-bearing deposits		0		0
Securities purchased under resale agreements		0		0
Federal funds sold		0		0
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Debt Securities, Held-to-maturity, Fair Value		0		0
Advances		0	[5]	0	[6]
Mortgage loans held for portfolio, net		0		0
Accrued interest receivable		0		0
Derivative assets		0		0
Liabilities
Deposits		0		0
Mandatorily redeemable capital stock		15,965		17,453
Accrued Interest Payable, Fair Value Disclosure		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 1 [Member] | Consolidated Obligation Bonds [Member]
Liabilities
Consolidated Obligations, Bonds		0	[7]	0	[8]
Fair Value, Inputs, Level 1 [Member] | Discount Notes [Member]
Liabilities
Consolidated Obligations, Discount Notes		0	[9]	0	[10]
Fair Value, Inputs, Level 2 [Member]
Assets
Cash and Due from Banks		0		0
Interest-bearing deposits		2,245,131		1,770,194
Securities purchased under resale agreements		12,205,494		519,545
Federal funds sold		14,153,000		5,399,000
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Debt Securities, Held-to-maturity, Fair Value		15,516,658		14,983,043
Advances		86,859,905	[5]	66,907,691	[6]
Mortgage loans held for portfolio, net		6,220,785		6,259,805
Accrued interest receivable		635,623		283,132
Derivative assets		129,491		50,792
Liabilities
Deposits		1,151,255		1,038,580
Mandatorily redeemable capital stock		0		0
Accrued Interest Payable, Fair Value Disclosure		463,628		290,194
Derivative liabilities		89,081		88,045
Fair Value, Inputs, Level 2 [Member] | Consolidated Obligation Bonds [Member]
Liabilities
Consolidated Obligations, Bonds		92,192,711	[7]	58,698,959	[8]
Fair Value, Inputs, Level 2 [Member] | Discount Notes [Member]
Liabilities
Consolidated Obligations, Discount Notes		48,328,883	[9]	40,680,714	[10]
Fair Value, Inputs, Level 3 [Member]
Assets
Cash and Due from Banks		0		0
Interest-bearing deposits		0		0
Securities purchased under resale agreements		0		0
Federal funds sold		0		0
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Debt Securities, Held-to-maturity, Fair Value		0		0
Advances		0	[5]	0	[6]
Mortgage loans held for portfolio, net		9,396		12,225
Accrued interest receivable		0		0
Derivative assets		0		0
Liabilities
Deposits		0		0
Mandatorily redeemable capital stock		0		0
Accrued Interest Payable, Fair Value Disclosure		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 3 [Member] | Consolidated Obligation Bonds [Member]
Liabilities
Consolidated Obligations, Bonds		0	[7]	0	[8]
Fair Value, Inputs, Level 3 [Member] | Discount Notes [Member]
Liabilities
Consolidated Obligations, Discount Notes		0	[9]	0	[10]
Carrying Value
Assets
Cash and Due from Banks		20,274	[11]	19,604	[12]
Interest-bearing deposits		2,245,131	[11]	1,770,194	[12]
Securities purchased under resale agreements		12,205,490	[11]	519,540	[12]
Federal funds sold		14,153,000	[11]	5,399,000	[12]
Trading securities		1,728,492	[11]	1,979,816	[12]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947	[11]	8,631,765	[12]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss		15,833,684	[11]	15,304,359	[12]
Advances		86,890,470	[5],[11]	67,019,555	[6],[12]
Mortgage loans held for portfolio, net		6,996,186	[11]	7,162,509	[12]
Accrued interest receivable		635,623	[11]	283,132	[12]
Derivative assets		701,758	[11]	490,560	[12]
Liabilities
Deposits		1,151,572	[11]	1,039,427	[12]
Mandatorily redeemable capital stock		15,965	[11]	17,453	[12]
Accrued Interest Payable, Fair Value Disclosure		463,628	[11]	290,194	[12]
Derivative liabilities		152	[11]	460	[12]
Carrying Value | Consolidated Obligation Bonds [Member]
Liabilities
Consolidated Obligations, Bonds		93,212,525	[7],[11]	59,667,745	[8],[12]
Carrying Value | Discount Notes [Member]
Liabilities
Consolidated Obligations, Discount Notes		48,336,904	[9],[11]	40,691,180	[10],[12]
Estimate of Fair Value Measurement [Member]
Assets
Cash and Due from Banks		20,274		19,604
Interest-bearing deposits		2,245,131		1,770,194
Securities purchased under resale agreements		12,205,494		519,545
Federal funds sold		14,153,000		5,399,000
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Debt Securities, Held-to-maturity, Fair Value		15,516,658		14,983,043
Advances		86,859,905	[5]	66,907,691	[6]
Mortgage loans held for portfolio, net		6,230,181		6,272,030
Accrued interest receivable		635,623		283,132
Derivative assets		701,758		490,560
Liabilities
Deposits		1,151,255		1,038,580
Mandatorily redeemable capital stock		15,965		17,453
Accrued Interest Payable, Fair Value Disclosure		463,628		290,194
Derivative liabilities		152		460
Estimate of Fair Value Measurement [Member] | Consolidated Obligation Bonds [Member]
Liabilities
Consolidated Obligations, Bonds		92,192,711	[7]	58,698,959	[8]
Estimate of Fair Value Measurement [Member] | Discount Notes [Member]
Liabilities
Consolidated Obligations, Discount Notes		$ 48,328,883	[9]	$ 40,680,714	[10]
[1]Carrying value equals amortized cost.[2]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[3]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively.[4]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[5]Includes (in thousands) $103,313 of Advances recorded under the fair value option at June 30, 2023.[6]Includes (in thousands) $4,954 of Advances recorded under the fair value option at December 31, 2022.[7]Includes (in thousands) $19,291,817 of Consolidated Obligation Bonds recorded under the fair value option at June 30, 2023.[8]Includes (in thousands) $5,469,583 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2022.[9]Includes (in thousands) $15,143,932 of Consolidated Obligation Discount Notes recorded under the fair value option at June 30, 2023.[10]Includes (in thousands) $21,010,746 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2022.[11]For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses.[12]For certain financial instruments, the amounts represent net carrying value, which include an allowance for credit losses.

Fair Value Disclosures Fair V_3

Fair Value Disclosures Fair Value Measured on a Recurring Basis (Details) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		$ 1,728,492		$ 1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Derivative assets		701,758		490,560
Derivative Asset, Netting Adjustments And Cash Collateral	[2]	572,267	[1]	439,768	[3]
Derivative liabilities		152		460
Derivative Liability, Netting Adjustments And Cash Collateral	[2]	(88,929)	[1]	(87,585)	[3]
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		244,612		491,464
Debt Securities, Available-for-Sale, Excluding Accrued Interest		7,451,660		7,194,271
US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,483,801		1,488,235
Debt Securities, Available-for-Sale, Excluding Accrued Interest		117,837		118,082
Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		79		117
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		2,123,450		1,319,412
Fair Value Option Election
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Advances, Fair Value Disclosure		103,313		4,954
Fair Value Option Election | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		19,291,817		5,469,583
Fair Value Option Election | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		15,143,932		21,010,746
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Netting Adjustments And Cash Collateral		572,267	[4]	439,768	[5]
Derivative Liability, Netting Adjustments And Cash Collateral		(88,929)	[4]	(87,585)	[5]
Fair Value, Recurring [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Netting Adjustments And Cash Collateral		572,267	[4]	439,768	[5]
Derivative Liability, Netting Adjustments And Cash Collateral		(88,929)	[4]	(87,585)	[5]
Fair Value, Recurring [Member] | Fair Value Option Election
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Advances, Fair Value Disclosure		103,313		4,954
Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure		34,435,749		26,480,329
Fair Value, Recurring [Member] | Fair Value Option Election | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		19,291,817		5,469,583
Fair Value, Recurring [Member] | Fair Value Option Election | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		15,143,932		21,010,746
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 1 [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		0	[6]	0	[7]
Fair Value, Inputs, Level 1 [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		0	[8]	0	[9]
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Advances, Fair Value Disclosure		0		0
Derivative assets		0		0
Total assets at fair value		0		0
Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure		0		0
Derivative liabilities		0		0
Total liabilities at fair value		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Forward Contracts [Member] | Mortgage Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Derivative assets		129,491		50,792
Derivative liabilities		89,081		88,045
Fair Value, Inputs, Level 2 [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		92,192,711	[6]	58,698,959	[7]
Fair Value, Inputs, Level 2 [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		48,328,883	[8]	40,680,714	[9]
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Advances, Fair Value Disclosure		103,313		4,954
Derivative assets		129,491		50,792
Total assets at fair value		11,654,243		10,667,327
Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure		34,435,749		26,480,329
Derivative liabilities		89,081		88,045
Total liabilities at fair value		34,524,830		26,568,374
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		19,291,817		5,469,583
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		15,143,932		21,010,746
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		129,454		50,780
Derivative liabilities		88,929		87,957
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Forward Contracts [Member] | Mortgage Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		37		12
Derivative liabilities		152		88
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		244,612		491,464
Debt Securities, Available-for-Sale, Excluding Accrued Interest		7,451,660		7,194,271
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,483,801		1,488,235
Debt Securities, Available-for-Sale, Excluding Accrued Interest		117,837		118,082
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		79		117
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		2,123,450		1,319,412
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 3 [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		0	[6]	0	[7]
Fair Value, Inputs, Level 3 [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		0	[8]	0	[9]
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Advances, Fair Value Disclosure		0		0
Derivative assets		0		0
Total assets at fair value		0		0
Federal Home Loan Bank, Consolidated Obligations Fair Value Disclosure		0		0
Derivative liabilities		0		0
Total liabilities at fair value		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Forward Contracts [Member] | Mortgage Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		0		0
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Derivative assets		701,758		490,560
Derivative liabilities		152		460
Estimate of Fair Value Measurement [Member] | Consolidated Obligation Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Bonds		92,192,711	[6]	58,698,959	[7]
Estimate of Fair Value Measurement [Member] | Discount Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Consolidated Obligations, Discount Notes		48,328,883	[8]	40,680,714	[9]
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,728,492		1,979,816
Debt Securities, Available-for-Sale, Excluding Accrued Interest		9,692,947		8,631,765
Derivative assets		701,758		490,560
Total assets at fair value		12,226,510		11,107,095
Derivative liabilities		152		460
Total liabilities at fair value		34,435,901		26,480,789
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		701,721		490,548
Derivative liabilities		0		372
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | Forward Contracts [Member] | Mortgage Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		37		12
Derivative liabilities		152		88
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		244,612		491,464
Debt Securities, Available-for-Sale, Excluding Accrued Interest		7,451,660		7,194,271
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,483,801		1,488,235
Debt Securities, Available-for-Sale, Excluding Accrued Interest		117,837		118,082
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		79		117
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Multifamily [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest		$ 2,123,450		$ 1,319,412
[1]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[2]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed by the FHLB with the same clearing agent and/or counterparty. Cash collateral posted, including accrued interest, was (in thousands) $718,724 and $533,270 at June 30, 2023 and December 31, 2022, respectively. Cash collateral received, including accrued interest, was (in thousands) $57,528 and $5,917 at June 30, 2023 and December 31, 2022, respectively.[3]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[4]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[5]Amounts represent the application of the netting requirements that allow the FHLB to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the FHLB with the same counterparty.[6]Includes (in thousands) $19,291,817 of Consolidated Obligation Bonds recorded under the fair value option at June 30, 2023.[7]Includes (in thousands) $5,469,583 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2022.[8]Includes (in thousands) $15,143,932 of Consolidated Obligation Discount Notes recorded under the fair value option at June 30, 2023.[9]Includes (in thousands) $21,010,746 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2022.

Fair Value Disclosures Fair V_4

Fair Value Disclosures Fair Value Impact on Financial Performance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	$ 60,435	$ 60,753	$ 25,623	$ 79,431
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Unrealized Gain (Loss) Arising During Period, before Tax			0
Advances [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	(1,568)	(842)	(1,535)	(2,282)
Discount Notes [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	16,214	29,094	(334)	38,294
Consolidated Obligation Bonds [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	$ 45,789	$ 32,501	$ 27,492	$ 43,419

Fair Value Disclosures Fair V_5

Fair Value Disclosures Fair Value Difference Between Fair Value and Remaining Contractual Principal Balance Outstanding (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 104,620	$ 5,000
Federal Home Loan Bank, Advances, Valuation Adjustments under Fair Value Option	(1,307)	(46)
Fair Value Option Election
Fair Value, Option, Quantitative Disclosures [Line Items]
Advances, Fair Value Disclosure	103,313	4,954
Consolidated Obligation Bonds [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value Option, Principle Balance, Consolidated Obligation Bonds	19,198,500	5,513,500
Fair Value Option, Aggregate Differences, Consolidated Obligations Bonds	93,317	(43,917)
Consolidated Obligation Bonds [Member] | Fair Value Option Election
Fair Value, Option, Quantitative Disclosures [Line Items]
Consolidated Obligations, Bonds, Fair Value	19,291,817	5,469,583
Discount Notes [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value Option, Principal Balance, Consolidated Obligation Discount Notes	15,281,352	21,182,801
Fair Value Option, Aggregate Differences, Consolidated Obligation Discount Notes	(137,420)	(172,055)
Discount Notes [Member] | Fair Value Option Election
Fair Value, Option, Quantitative Disclosures [Line Items]
Consolidated Obligations, Discount Notes, Fair Value	$ 15,143,932	$ 21,010,746

Commitments and Contingencies N

Commitments and Contingencies Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Other Liabilities	$ 430,807	$ 312,891
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Other Liabilities	$ 9,038	$ 9,691

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year		$ 45,345,606	$ 41,122,833
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year		392,604	222,439
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		45,738,210	41,345,272
Financial Standby Letter of Credit [Member]
Loss Contingencies [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year		0	11,015
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year		0	0
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		0	11,015
Forward Contracts [Member] | Mortgage Receivable [Member]
Loss Contingencies [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year		65,176	14,291
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year		0	0
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability		65,176	14,291
Consolidated Obligation Bonds [Member]
Loss Contingencies [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year	[1]	0	3,000,000
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year	[1]	0	0
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	[1]	0	3,000,000
Discount Notes [Member]
Loss Contingencies [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring Within One Year	[1]	0	182,205
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Expiring After One Year	[1]	0	0
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	[1]	$ 0	$ 182,205
[1]Expiration is based on settlement period rather than underlying contractual maturity of Consolidated Obligations.

Transactions with Other FHLBa_3

Transactions with Other FHLBanks (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule of Other Transactions [Line Items]
Loans to other FHLBanks	$ 0		$ 0
Loans from Other Federal Home Loan Banks	0		$ 0
Par Amount of Bonds Transferred from Other Federal Home Loan Banks	250,000	$ 0
Payments for Bonds Transferred to Other Federal Home Loan Banks	0	0
Other FHLBanks [Member]
Schedule of Other Transactions [Line Items]
Loans Receivable, Average Outstanding Amount	$ 34,530	$ 16,851

Transactions with Stockholder_2

Transactions with Stockholders (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Schedule of Other Transactions [Line Items]
Advances		$ 87,401,976	$ 67,428,019
Mortgage Purchase Program [Member]
Schedule of Other Transactions [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		6,846,675	7,006,481
Director [Member]
Schedule of Other Transactions [Line Items]
Advances		$ 3,185,000	$ 22,009,000
Federal Home Loan Bank Advances, Percent of Principal	[1]	3.60%	32.60%
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance, Percent of Total	[1]	0.10%	0.80%
Regulatory Capital Stock, Value		$ 203,000	$ 1,501,000
Regulatory Capital Stock, Percent of Total	[1]	3.50%	29%
Director [Member] | Mortgage Purchase Program [Member]
Schedule of Other Transactions [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		$ 10,000	$ 56,000
[1]Percentage of total principal (Advances), unpaid principal balance (MPP), and regulatory capital stock.

Transactions with Stockholder_3

Transactions with Stockholders (Concentrations) (Details) $ in Thousands	Jun. 30, 2023 USD ($) Banks	Dec. 31, 2022 USD ($)
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 87,401,976	$ 67,428,019
U.S. Bank, N.A. [Member] | Capital Stock Ownership By Third Party [Member]
Concentration Risk [Line Items]
Regulatory Capital Stock, Value	$ 1,454,000	$ 1,293,000
Concentration Risk, Percentage	25%	25%
U.S. Bank, N.A. [Member] | Advances to Members and Former Members [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 20,500,000	$ 19,000,000
U.S. Bank, N.A. [Member] | Mortgage Purchase Program [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance	7,000	8,000
Keybank National Association | Capital Stock Ownership By Third Party [Member]
Concentration Risk [Line Items]
Regulatory Capital Stock, Value	$ 813,000	$ 670,000
Concentration Risk, Percentage	14%	13%
Keybank National Association | Advances to Members and Former Members [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 15,339,000	$ 11,344,000
Keybank National Association | Mortgage Purchase Program [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance	0	0
The Huntington National Bank | Capital Stock Ownership By Third Party [Member]
Concentration Risk [Line Items]
Regulatory Capital Stock, Value	$ 403,000	$ 303,000
Concentration Risk, Percentage	7%	6%
The Huntington National Bank | Advances to Members and Former Members [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 6,501,000	$ 1,702,000
The Huntington National Bank | Mortgage Purchase Program [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance	344,000	348,000
Fifth Third Bank | Capital Stock Ownership By Third Party [Member]
Concentration Risk [Line Items]
Regulatory Capital Stock, Value	$ 339,000	$ 381,000
Concentration Risk, Percentage	6%	7%
Fifth Third Bank | Advances to Members and Former Members [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 5,301,000	$ 4,301,000
Fifth Third Bank | Mortgage Purchase Program [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance	0	$ 0
First Horizon Bank | Capital Stock Ownership By Third Party [Member]
Concentration Risk [Line Items]
Regulatory Capital Stock, Value	$ 327,000
Concentration Risk, Percentage	6%
First Horizon Bank | Advances to Members and Former Members [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Advances, Par Value	$ 4,340,000
First Horizon Bank | Mortgage Purchase Program [Member]
Concentration Risk [Line Items]
Federal Home Loan Bank, Mortgage Purchase Program, Unpaid Principal Balance	$ 0
Kentucky Housing Corporation, Ohio Housing Finance Agency, Tennessee Housing Development Agency [Member]
Concentration Risk [Line Items]
Number Of Relationships With Non Member Affiliates | Banks	3