Federal Home Loan Bank of Boston 10-Q 11 Aug 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Jul. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	000-51402
Entity Registrant Name	FEDERAL HOME LOAN BANK OF BOSTON
Entity Incorporation, State or Country Code	X1
Entity Tax Identification Number	04-6002575
Entity Address, Address Line One	800 Boylston Street,
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02199
City Area Code	(617)
Local Phone Number	292-9600
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		16,266,828
Amendment Flag	false
Entity Central Index Key	0001331463
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2

Statements of Condition (unaudi

Statements of Condition (unaudited) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks		$ 65,965	$ 204,993
Interest-bearing deposits		395,230	85,153
Securities purchased under agreements to resell		11,250,000	800,000
Federal funds sold		2,998,000	1,944,000
Investment securities:
Trading securities		980	501,867
Available-for-sale securities (amortized cost of $13,730,648 and $12,837,974 at June 30, 2022, and December 31, 2021, respectively)		13,496,627	12,895,987
Held-to-maturity securities	[1]	113,697	145,492
Total investment securities		13,611,304	13,543,346
Advances	[2]	30,318,486	12,340,020
Mortgage loans held for portfolio, net of allowance for credit losses of $1,500 and $1,700 at June 30, 2022 and December 31, 2021, respectively		2,897,373	3,120,159
Accrued interest receivable		85,367	68,360
Derivative assets, net		389,239	378,532
Other assets		53,030	60,729
Total Assets		62,063,994	32,545,292
Deposits
Interest-bearing		1,035,235	833,007
Non-interest-bearing		31,224	51,025
Total deposits		1,066,459	884,032
Consolidated obligations (COs):
Bonds		32,721,605	26,613,032
Discount notes		25,096,230	2,275,320
Total consolidated obligations		57,817,835	28,888,352
Mandatorily redeemable capital stock		10,703	13,562
Accrued interest payable		86,722	60,968
Affordable Housing Program (AHP) payable		85,086	70,503
Derivative liabilities, net		0	38,944
Other liabilities		49,177	57,920
Total liabilities		59,115,982	30,014,281
Commitments and contingencies (Note 13)
Capital
Capital stock – Class B – putable ($100 par value), 15,572 shares and 9,536 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively		1,557,243	953,638
Retained earnings:
Unrestricted		1,230,558	1,179,986
Restricted		376,620	368,420
Total retained earnings		1,607,178	1,548,406
Accumulated other comprehensive (loss) income		(216,409)	28,967
Total capital		2,948,012	2,531,011
Total Liabilities and Capital		$ 62,063,994	$ 32,545,292
[1]Fair values of held-to-maturity securities were $114,516 and $148,068 at June 30, 2022, and December 31, 2021, respectively.[2]Excludes accrued interest receivable of $32.2 million and $16.3 million at June 30, 2022, and December 31, 2021, respectively.

Statements of Condition (Parent

Statements of Condition (Parenthetical) - USD ($) shares in Thousands, $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Available-for-sale securities amortized cost	[1]	$ 13,730,648	$ 12,837,974
Allowance for credit losses - mortgage loans held for portfolio		$ 1,500	$ 1,700
Common Stock, Class B, putable shares issued		15,572	9,536
Common Stock, Class B, putable shares outstanding		15,572	9,536
Held-to-maturity fair value		$ 114,516	$ 148,068
Common Class B [Member]
Common Stock, Class B, putable par value per share		$ 100	$ 100
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, collection of cash, and fair-value hedge accounting adjustments. Amortized cost excludes accrued interest receivable of $37.1 million and $31.6 million at June 30, 2022, and December 31, 2021, respectively

Statements of Operations (unaud

Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
INTEREST INCOME
Advances	$ 69,277	$ 43,230	$ 103,270	$ 92,782
Prepayment fees on advances, net	2,364	4,232	3,278	11,965
Interest-bearing deposits	2,369	10	2,529	94
Securities purchased under agreements to resell	9,109	168	9,280	292
Federal funds sold	6,758	482	7,572	1,096
Investment securities:
Trading securities	17	15,141	551	32,449
Available-for-sale securities	62,405	10,841	107,138	33,836
Held-to-maturity securities	683	632	1,279	1,399
Total investment securities	63,105	26,614	108,968	67,684
Mortgage loans held for portfolio	21,419	23,007	42,947	48,144
Total interest income	174,401	97,743	277,844	222,057
Consolidated obligations:
Bonds	78,242	53,684	122,142	115,285
Discount notes	26,109	683	26,716	3,085
Total consolidated obligations	104,351	54,367	148,858	118,370
Deposits	326	25	348	50
Mandatorily redeemable capital stock	97	25	166	49
Other borrowings	310	5	313	9
Total interest expense	105,084	54,422	149,685	118,478
NET INTEREST INCOME	69,317	43,321	128,159	103,579
(Reduction of) provision for credit losses	(99)	199	(199)	(1,027)
NET INTEREST INCOME AFTER (REDUCTION OF) PROVISION FOR CREDIT LOSSES	69,416	43,122	128,358	104,606
OTHER INCOME (LOSS)
Loss on early extinguishment of debt	0	(1,523)	(432)	(4,948)
Service fees	3,943	2,684	6,495	5,380
Net losses on trading securities	(252)	(14,599)	(887)	(29,442)
Net (losses) gains on derivatives	(114)	447	(787)	(401)
Other, net	241	(113)	495	544
Total other income (loss)	3,818	(13,104)	4,884	(28,867)
OTHER EXPENSE
Compensation and benefits	10,773	10,461	22,012	20,699
Other operating expenses	6,249	6,012	12,668	11,864
Federal Housing Finance Agency (the FHFA)	1,014	957	2,103	1,914
Office of Finance	1,532	661	2,035	1,750
AHP voluntary contribution	5,455	1,713	13,980	4,789
Other	2,644	3,373	3,942	4,674
Total other expense	27,667	23,177	56,740	45,690
INCOME BEFORE ASSESSMENTS	45,567	6,841	76,502	30,049
AHP assessments	4,567	687	7,667	3,010
NET INCOME	$ 41,000	$ 6,154	$ 68,835	$ 27,039

Statements of Comprehensive Inc

Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 41,000	$ 6,154	$ 68,835	$ 27,039
Other comprehensive (loss) income:
Net unrealized (losses) gains on available-for-sale securities	(150,748)	37,811	(292,034)	35,892
Net unrealized gains (losses) relating to hedging activities	23,637	(12,718)	47,133	(5,975)
Pension and postretirement benefits	(498)	1,329	(475)	1,589
Total other comprehensive (loss) income	(127,609)	26,422	(245,376)	31,506
Comprehensive (loss) income	$ (86,609)	$ 32,576	$ (176,541)	$ 58,545

Statements of Capital (unaudite

Statements of Capital (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period	$ 2,411,787	$ 2,717,064	$ 2,531,011	$ 2,781,953
Comprehensive income	(86,609)	32,576	(176,541)	58,545
Proceeds from issuance of capital stock	1,939,415	58,347	2,061,275	98,184
Repurchase of capital stock	(1,302,693)	(157,373)	(1,448,709)	(282,717)
Shares reclassified to mandatorily redeemable capital stock	(8,961)	(1,582)	(8,961)	(1,582)
Cash dividends on capital stock	(4,927)	(4,631)	(10,063)	(9,982)
Period end	2,948,012	2,644,401	2,948,012	2,644,401
Retained Earnings, Unrestricted
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period	1,202,685	1,145,756	1,179,986	1,130,222
Comprehensive income	32,800	6,154	60,635	27,039
Cash dividends on capital stock	(4,927)	(4,631)	(10,063)	(9,982)
Period end	1,230,558	1,147,279	1,230,558	1,147,279
Retained Earnings, Restricted
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period	368,420	368,420	368,420	368,420
Comprehensive income	8,200	0	8,200	0
Period end	376,620	368,420	376,620	368,420
Retained Earnings, Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period	1,571,105	1,514,176	1,548,406	1,498,642
Comprehensive income	41,000	6,154	68,835	27,039
Cash dividends on capital stock	(4,927)	(4,631)	(10,063)	(9,982)
Period end	1,607,178	1,515,699	1,607,178	1,515,699
Accumulated Other Comprehensive (Loss) income
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period	(88,800)	21,223	28,967	16,139
Comprehensive income	(127,609)	26,422	(245,376)	31,506
Period end	$ (216,409)	$ 47,645	$ (216,409)	$ 47,645
Common Class B [Member] | Capital Stock Class B - Putable
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning of period, shares	9,295	11,817	9,536	12,672
Beginning of period	$ 929,482	$ 1,181,665	$ 953,638	$ 1,267,172
Proceeds from issuance of capital stock, shares	19,394	584	20,613	982
Proceeds from issuance of capital stock	$ 1,939,415	$ 58,347	$ 2,061,275	$ 98,184
Repurchase of capital stock, shares	(13,027)	(1,574)	(14,487)	(2,827)
Repurchase of capital stock	$ (1,302,693)	$ (157,373)	$ (1,448,709)	$ (282,717)
Shares reclassified to mandatorily redeemable capital stock, shares	(90)	(16)	(90)	(16)
Shares reclassified to mandatorily redeemable capital stock	$ (8,961)	$ (1,582)	$ (8,961)	$ (1,582)
Period end, shares	15,572	10,811	15,572	10,811
Period end	$ 1,557,243	$ 1,081,057	$ 1,557,243	$ 1,081,057

Statements of Cash Flows (unaud

Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
OPERATING ACTIVITIES
Net Income			$ 68,835	$ 27,039
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and (accretion)/amortization			(21,913)	(457)
Reduction of provision for credit losses	$ (99)	$ 199	(199)	(1,027)
Net change in derivatives and hedging activities			1,126,266	100,227
Loss on early extinguishment of debt	0	1,523	432	4,948
Other adjustments, net			2,170	1,524
Net change in:
Market value of trading securities			887	29,442
Accrued interest receivable			(17,007)	4,150
Other assets			3,805	(4,307)
Accrued interest payable			25,754	(1,262)
Other liabilities			5,202	(4,630)
Total adjustments			1,125,397	128,608
Net cash provided by operating activities			1,194,232	155,647
INVESTING ACTIVITIES
Interest-bearing deposits			(1,228,327)	99,288
Securities purchased under agreements to resell			(10,450,000)	0
Federal funds sold			(1,054,000)	492,000
Trading securities:
Proceeds			500,000	1,050,543
Available-for-sale securities:
Proceeds			382,354	568,035
Purchases			(2,205,484)	(5,269,292)
Held-to-maturity securities:
Proceeds			32,920	29,453
Advances to members:
Repaid			114,877,033	22,112,465
Originated			(133,007,490)	(18,523,434)
Mortgage loans held for portfolio:
Proceeds			276,785	738,567
Purchases			(60,013)	(291,307)
Other investing activities, net			(86)	(423)
Net cash (used in) provided by investing activities			(31,936,308)	1,005,895
FINANCING ACTIVITIES
Net change in deposits			182,427	(118,705)
Net payments on derivatives with a financing element			94,558	30,092
Net proceeds from issuance of consolidated obligations:
Discount notes			121,903,886	153,007,790
Bonds			10,444,334	10,008,979
Payments for maturing and retiring consolidated obligations:
Discount notes			(99,096,517)	(157,518,396)
Bonds			(3,516,301)	(7,755,500)
Bonds transferred to other FHLBanks			0	(173,984)
Payment of financing lease			(22)	(22)
Proceeds from issuance of capital stock			2,061,275	98,184
Payments for repurchase of capital stock			(1,448,709)	(282,717)
Payments for redemption of mandatorily redeemable capital stock			(11,820)	(432)
Cash dividends paid			(10,063)	(9,982)
Net cash provided by (used in) financing activities			30,603,048	(2,714,693)
Net decrease in cash and due from banks			(139,028)	(1,553,151)
Cash and due from banks at beginning of the period			204,993	2,050,028	$ 2,050,028
Cash and due from banks at end of the period	$ 65,965	$ 496,877	65,965	496,877	204,993
Supplemental disclosures:
Interest paid			122,494	144,512
AHP payments			6,708	7,838	$ 17,980
Noncash transfers of mortgage loans held for portfolio to other assets			$ 306	$ 245

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Basis of Accounting [Text Block]	Basis of Presentation The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information. In the opinion of management, all adjustments considered necessary have been included. All such adjustments consist of normal recurring accruals other than the immaterial accounting adjustment discussed below. In the second quarter of 2022 we identified an accounting error related to changes in fair value of certain available-for-sale securities that are in fair-value hedge relationships. As a result of this error, cumulatively from the second quarter of 2019 through the first quarter of 2022, net income and retained earnings were understated by $6.2 million. We determined the error did not have a material effect on our financial condition, results of operations, or cash flows for the impacted periods, and a correcting adjustment was recorded in interest income from available-for-sale securities in the second quarter of 2022. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. The results of operations for interim periods are not necessarily indicative of the results to be expected for the year ending December 31, 2022. These interim financial statements do not include all the information and footnotes required by GAAP for complete annual financial statements and accordingly should be read in conjunction with the Federal Home Loan Bank of Boston's audited financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the SEC) on March 18, 2022 (the 2021 Annual Report). Unless otherwise indicated or the context requires otherwise, all references in this discussion to “the Bank,” "we," "us," "our," or similar references mean the Federal Home Loan Bank of Boston.

Recently Issued and Adopted Acc

Recently Issued and Adopted Accounting Guidance	6 Months Ended
	Jun. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Recently Issued and Adopted Accounting Guidance Effective Beginning in 2020 Facilitation of the Effects of Reference Rate Reform on Financial Reporting. On March 12, 2020, the Financial Accounting Standards Board (FASB) released temporary optional guidance that provides transition relief for reference rate reform. The guidance contains optional expedients and exceptions for applying GAAP to contract modifications, hedging relationships, and other transactions that reference the London Interbank Offered Rate (LIBOR) or a reference rate that is expected to be discontinued as a result of reference rate reform if certain criteria are met. This standard was effective upon issuance and the provisions generally can be applied prospectively as of January 1, 2020, through December 31, 2022. In addition to the optional expedients for contract modifications and hedging relationships, this update provides a one-time election to sell, transfer, or both sell and transfer debt securities classified as held-to-maturity that reference a rate affected by reference rate reform and that were classified as held-to-maturity before January 1, 2020. In the third quarter of 2020, we adopted the provision of this guidance which allows a one-time election to sell, transfer, or both sell and transfer debt securities classified as held-to-maturity. In the fourth quarter of 2020, we retrospectively elected to adopt the provision of this guidance specific to the modification of interest rates used for the discounting of derivative instruments. This did not have a material effect on our financial condition, results of operations, or cash flows. We are in the process of evaluating the remaining provisions of this guidance, and the anticipated effects on our financial condition, results of operations, and cash flows have not yet been determined.

Investments

Investments	6 Months Ended
	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Investments Interest-Bearing Deposits, Securities Purchased under Agreements to Resell, and Federal Funds Sold We invest in interest-bearing deposits, securities purchased under agreements to resell, and federal funds sold to provide short-term liquidity. These investments are generally transacted with counterparties that have received, or whose guarantors have received, a credit rating of triple-B or greater (investment grade) by a nationally recognized statistical rating organization (NRSRO), or the equivalent. At June 30, 2022, and December 31, 2021, none of these investments were made to counterparties or, if applicable, guaranteed by entities rated below single-A. Securities purchased under agreements to resell are short-term and are structured such that they are evaluated daily 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 amount of additional securities as collateral or remit an equivalent amount of cash sufficient to comply with collateral maintenance provisions, generally by the next business day. Based upon the collateral held as security and collateral maintenance provisions with our counterparties, we determined that no allowance for credit losses was needed for our securities purchased under agreements to resell at June 30, 2022, and December 31, 2021. Federal funds sold are unsecured loans that are transacted on an overnight term or short-term basis. FHFA regulations include a limit on the amount of unsecured credit we may extend to a counterparty. All investments in interest-bearing deposits and federal funds sold outstanding as of June 30, 2022, and December 31, 2021, have been repaid according to the contractual terms. No allowance for credit losses was recorded for these assets at June 30, 2022, and December 31, 2021. Debt Securities We invest in debt securities, which are classified as either trading, available-for-sale, or held-to-maturity. We are prohibited by FHFA regulations from investing in 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, but we are not required to divest instruments that experience credit deterioration after their purchase. Trading Securities Table 3.1 - Trading Securities by Major Security Type (dollars in thousands) June 30, 2022 December 31, 2021 Corporate bonds $ 980 $ 1,442 U.S. Treasury obligations — 500,425 Total $ 980 $ 501,867 Table 3.2 - Net Losses on Trading Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Net losses on trading securities held at period end $ (252) $ (12,659) $ (462) $ (23,698) Net losses on trading securities sold or matured during the period — (1,940) (425) (5,744) Net losses on trading securities $ (252) $ (14,599) $ (887) $ (29,442) We do not participate in speculative trading practices and typically hold these investments over a longer time horizon. Available-for-sale Securities Table 3.3 - Available-for-Sale Securities by Major Security Type (dollars in thousands) June 30, 2022 Amounts Recorded in Accumulated Other Comprehensive Income Amortized Cost (1) Unrealized Unrealized Fair U.S. Treasury obligations $ 5,913,640 $ 610 $ (24,637) $ 5,889,613 State housing-finance-agency obligations (HFA securities) 62,470 — (1,937) 60,533 Supranational institutions 375,108 12 (5,873) 369,247 U.S. government-owned corporations 274,680 — (25,501) 249,179 Government-sponsored enterprises (GSE) 112,367 — (5,861) 106,506 6,738,265 622 (63,809) 6,675,078 Mortgage-backed securities (MBS) U.S. government guaranteed – single-family 19,625 4 (1,658) 17,971 U.S. government guaranteed – multifamily 536,937 — (18,325) 518,612 GSE – single-family 923,641 649 (40,866) 883,424 GSE – multifamily 5,512,180 18,737 (129,375) 5,401,542 6,992,383 19,390 (190,224) 6,821,549 Total $ 13,730,648 $ 20,012 $ (254,033) $ 13,496,627 December 31, 2021 Amounts Recorded in Accumulated Other Comprehensive Income Amortized Cost (1) Unrealized Unrealized Fair U.S. Treasury obligations $ 5,081,536 $ 3,380 $ (370) $ 5,084,546 HFA securities 63,330 2 (1,067) 62,265 Supranational institutions 409,337 96 (5,668) 403,765 U.S. government-owned corporations 325,567 — (18,703) 306,864 GSE 130,143 — (3,671) 126,472 6,009,913 3,478 (29,479) 5,983,912 MBS U.S. government guaranteed – single-family 21,435 100 — 21,535 U.S. government guaranteed – multifamily 541,238 219 (52) 541,405 GSE – single-family 1,093,890 9,945 (121) 1,103,714 GSE – multifamily 5,171,498 99,119 (25,196) 5,245,421 6,828,061 109,383 (25,369) 6,912,075 Total $ 12,837,974 $ 112,861 $ (54,848) $ 12,895,987 _______________________ (1) Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, collection of cash, and fair-value hedge accounting adjustments. Amortized cost excludes accrued interest receivable of $37.1 million and $31.6 million at June 30, 2022, and December 31, 2021, respectively. Table 3.4 - Available-for-Sale Securities in a Continuous Unrealized Loss Position (dollars in thousands) June 30, 2022 Continuous Unrealized Loss Less than 12 Months Continuous Unrealized Loss 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury obligations $ 4,768,902 $ (19,582) $ 878,735 $ (5,055) $ 5,647,637 $ (24,637) HFA securities 11,315 (35) 49,218 (1,902) 60,533 (1,937) Supranational institutions — — 355,775 (5,873) 355,775 (5,873) U.S. government-owned corporations — — 249,179 (25,501) 249,179 (25,501) GSE — — 106,505 (5,861) 106,505 (5,861) 4,780,217 (19,617) 1,639,412 (44,192) 6,419,629 (63,809) MBS U.S. government guaranteed – single-family 17,220 (1,658) — — 17,220 (1,658) U.S. government guaranteed – multifamily 518,612 (18,325) — — 518,612 (18,325) GSE – single-family 739,239 (32,937) 78,231 (7,929) 817,470 (40,866) GSE – multifamily 4,739,498 (121,950) 198,174 (7,425) 4,937,672 (129,375) 6,014,569 (174,870) 276,405 (15,354) 6,290,974 (190,224) Total $ 10,794,786 $ (194,487) $ 1,915,817 $ (59,546) $ 12,710,603 $ (254,033) December 31, 2021 Continuous Unrealized Loss Less than 12 Months Continuous Unrealized Loss 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury obligations $ 1,212,443 $ (370) $ — $ — $ 1,212,443 $ (370) HFA securities — — 50,053 (1,067) 50,053 (1,067) Supranational institutions — — 389,180 (5,668) 389,180 (5,668) U.S. government-owned corporations — — 306,864 (18,703) 306,864 (18,703) GSE — — 126,472 (3,671) 126,472 (3,671) 1,212,443 (370) 872,569 (29,109) 2,085,012 (29,479) MBS U.S. government guaranteed – multifamily 187,437 (52) — — 187,437 (52) GSE – single-family 93,020 (121) — — 93,020 (121) GSE – multifamily 1,507,051 (25,196) — — 1,507,051 (25,196) 1,787,508 (25,369) — — 1,787,508 (25,369) Total $ 2,999,951 $ (25,739) $ 872,569 $ (29,109) $ 3,872,520 $ (54,848) Table 3.5 - Available-for-Sale Securities by Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Year of Maturity Amortized Fair Amortized Fair Due in one year or less $ 27,000 $ 26,711 $ 27,000 $ 26,780 Due after one year through five years 2,981,336 2,970,217 1,898,894 1,898,308 Due after five years through 10 years 3,384,900 3,364,172 3,674,762 3,671,798 Due after 10 years 345,029 313,978 409,257 387,026 6,738,265 6,675,078 6,009,913 5,983,912 MBS (1) 6,992,383 6,821,549 6,828,061 6,912,075 Total $ 13,730,648 $ 13,496,627 $ 12,837,974 $ 12,895,987 _______________________ (1) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers of the underlying loans may have the right to call or prepay obligations with or without call or prepayment fees. Held-to-Maturity Securities Table 3.6 - Held-to-Maturity Securities by Major Security Type (dollars in thousands) June 30, 2022 Amortized Cost (1) Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Fair Value MBS U.S. government guaranteed – single-family $ 3,914 $ 59 $ — $ 3,973 GSE – single-family 109,783 1,152 (392) 110,543 Total $ 113,697 $ 1,211 $ (392) $ 114,516 December 31, 2021 Amortized Cost (1) Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Fair Value MBS U.S. government guaranteed – single-family $ 4,320 $ 88 $ — $ 4,408 GSE – single-family 141,172 2,605 (117) 143,660 Total $ 145,492 $ 2,693 $ (117) $ 148,068 _______________________ (1) Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion, amortization, and collection of cash. Amortized cost excludes accrued interest receivable of $214 thousand and $200 thousand at June 30, 2022, and December 31, 2021, respectively. Gains and Losses on Sales. We compute gains and losses on sales of investment securities using the specific identification method and include these gains and losses in other income (loss). The following table summarizes the proceeds from sale and gains and losses on sales of securities for the three and six months ended June 30, 2022 and 2021. Table 3.7 - Proceeds and Gains (Losses) from Sales of Investment Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Available-for-Sale Securities Proceeds from sale $ — $ — $ 142,733 $ — Amortized cost — — 142,735 — Gross realized gains from sale — — 124 — Gross realized losses from sale — — (126) — Realized net loss from sale $ — $ — $ (2) $ — Held-to-Maturity Securities (1) Proceeds from sale $ — $ — $ 10,405 $ — Carrying value — — 10,385 — Gross realized gains from sale — — 22 — Gross realized losses from sale — — (2) — Realized net gain from sale $ — $ — $ 20 $ — _______________________ (1) Held-to-maturity securities sold had less than 15 percent of the acquired principal outstanding at the time of sale. Such sales are treated as maturities for the purposes of security classification. The sale does not impact our ability and intent to hold the remaining investments classified as held-to-maturity through their stated maturity dates. Allowance for Credit Losses on Available-for-Sale Securities and Held-to-Maturity Securities We evaluate available-for-sale and held-to-maturity investment securities for credit losses on a quarterly basis. Our available-for-sale and held-to-maturity securities are principally debt securities of GSE or U.S. government-owned corporations, supranational institutions, and state or local housing finance agency obligations, and MBS issued by Government National Mortgage Association (Ginnie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac), and Federal National Mortgage Association (Fannie Mae) that are backed by single-family or multifamily mortgage loans. We only purchase investment-grade securities. At June 30, 2022, and December 31, 2021, all available-for-sale securities 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. We evaluate 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, 2022, certain available-for-sale securities were in an unrealized loss position. These losses are considered temporary as we expect to recover the entire amortized cost basis on these available-for-sale investment securities and we neither intend to sell these securities nor do we consider it more likely than not that we will be required to sell these securities before the anticipated recovery of each security's remaining amortized cost basis. Further, we have not experienced any material payment defaults on the instruments. Based on our assessment of the creditworthiness of the issuers or guarantors, no allowance for credit losses was recorded on available-for-sale securities at June 30, 2022, and December 31, 2021. We evaluate 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. We have not experienced and do not anticipate any material payment defaults on these securities. Based on our assessment of the creditworthiness of the issuers or guarantors, no allowance for credit losses was recorded on held-to-maturity securities at June 30, 2022, and December 31, 2021.

Advances

Advances	6 Months Ended
	Jun. 30, 2022
Advances [Abstract]
Federal Home Loan Bank, Advances [Text Block]	Advances General Terms. At June 30, 2022, and December 31, 2021, we had advances outstanding with interest rates ranging from 0.00 percent to 6.23 percent and 0.00 percent to 7.72 percent, respectively. Table 4.1 - Advances Outstanding by Year of Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Amount Weighted Amount Weighted Overdrawn demand-deposit accounts $ 126 1.90 % $ 64 0.60 % Due in one year or less 15,572,853 1.55 5,064,776 0.76 Due after one year through two years 9,536,392 1.78 1,354,297 2.26 Due after two years through three years 1,152,769 1.74 1,541,076 1.64 Due after three years through four years 1,352,529 1.50 2,173,238 1.43 Due after four years through five years 1,372,914 1.81 1,310,971 1.07 Due after five years through fifteen years 1,457,711 2.19 871,692 2.11 Thereafter 32,564 1.28 31,591 1.33 Total par value 30,477,858 1.67 % 12,347,705 1.28 % Discounts (33,800) (34,926) Fair value of bifurcated derivatives (1) 1,580 11,890 Hedging adjustments (127,152) 15,351 Total (2) $ 30,318,486 $ 12,340,020 _________________________ (1) At June 30, 2022, and December 31, 2021, we had certain advances with embedded features that met the requirements to be separated from the host contract and designated as stand-alone derivatives. (2) Excludes accrued interest receivable of $32.2 million and $16.3 million at June 30, 2022, and December 31, 2021, respectively. We offer advances to members and eligible nonmembers that provide the borrower the right, based upon predetermined option exercise dates, to repay the advance prior to maturity without incurring prepayment or termination fees (callable advances). We also offer certain floating-rate advances that may be contractually prepaid by the borrower on a floating-rate reset date without incurring prepayment or termination fees. Other advances may only be prepaid by paying a fee (prepayment fee) that makes us financially indifferent to the prepayment of the advance. Table 4.2 - Advances Outstanding by Year of Contractual Maturity or Next Call Date (dollars in thousands) June 30, 2022 December 31, 2021 Overdrawn demand-deposit accounts $ 126 $ 64 Due in one year or less 24,926,478 6,116,251 Due after one year through two years 1,231,392 1,354,297 Due after two years through three years 1,062,994 1,249,001 Due after three years through four years 1,316,029 2,106,238 Due after four years through five years 455,164 632,271 Due after five years through fifteen years 1,453,111 857,992 Thereafter 32,564 31,591 Total par value $ 30,477,858 $ 12,347,705 We currently hold putable advances that provide us with the right to require repayment prior to maturity of the advance (and thereby extinguish the advance) on predetermined exercise dates (put dates). Generally, we would exercise the put options when interest rates increase relative to contractual rates. Table 4.3 - Advances Outstanding by Year of Contractual Maturity or Next Put Date (dollars in thousands) June 30, 2022 December 31, 2021 Overdrawn demand-deposit accounts $ 126 $ 64 Due in one year or less 15,881,753 6,088,201 Due after one year through two years 9,307,992 908,797 Due after two years through three years 1,141,769 1,497,076 Due after three years through four years 1,341,029 1,709,313 Due after four years through five years 1,358,914 1,277,471 Due after five years through fifteen years 1,413,711 835,192 Thereafter 32,564 31,591 Total par value $ 30,477,858 $ 12,347,705 Table 4.4 - Advances by Current Interest Rate Terms (dollars in thousands) June 30, 2022 December 31, 2021 Fixed-rate $ 16,925,337 $ 9,998,766 Variable-rate 13,552,521 2,348,939 Total par value $ 30,477,858 $ 12,347,705 Credit Risk Exposure and Security Terms. Our advances are primarily made to member financial institutions, including commercial banks, insurance companies, savings institutions, and credit unions. We manage our credit exposure to secured member credit products through an integrated approach that generally includes establishing a credit limit for each borrower. This approach includes an ongoing review of each borrower's financial condition, and collateral and lending policies that are intended to limit risk of loss while balancing borrowers' needs for a reliable source of funding. For additional information on credit risk exposure and security terms see Part II — Item 8 — Financial Statements and Supplementary Data — Note 6 — Advances in the 2021 Annual Report. Using a risk-based approach and taking into consideration each borrower's financial strength, we consider the types and level of collateral to be the primary indicator of credit quality on our credit products. At June 30, 2022, and December 31, 2021, we had rights to collateral, on a borrower-by-borrower basis, with an estimated value in excess of our outstanding extensions of credit. We continue to evaluate and make changes to our collateral guidelines based on market conditions. At June 30, 2022, and December 31, 2021, none of our advances were past due, on nonaccrual status, or considered impaired. In addition, there were no troubled debt restructurings related to advances during the six months ended June 30, 2022 and 2021. Based upon the collateral held as security, our credit extension and collateral policies, management's credit analysis, and the repayment history on advances, we have not recorded any allowance for credit losses on our advances at June 30, 2022, and December 31, 2021. Prepayment Fees. Table 4.5 - Advances Prepayment Fees (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Prepayment fees received from borrowers $ 772 $ 4,728 $ 1,695 $ 14,145 Hedging fair-value adjustments on prepaid advances 1,271 (479) 1,280 (936) Net discounts (premiums) associated with prepaid advances 321 (17) 303 (1,244) Advance prepayment fees recognized in income, net $ 2,364 $ 4,232 $ 3,278 $ 11,965

Mortgage Loans Held for Portfol

Mortgage Loans Held for Portfolio	6 Months Ended
	Jun. 30, 2022
Receivables [Abstract]
Mortgage Loans Held for Portfolio [Text Block]	Mortgage Loans Held for Portfolio We invest in mortgage loans through the Mortgage Partnership Finance® (MPF®) program. These mortgage loans are either guaranteed or insured by federal agencies, as is the case with government mortgage loans, or are credit-enhanced, directly or indirectly, by the related entity that sold the loan (a participating financial institution), as is the case with conventional mortgage loans. All such investments are held for portfolio. Table 5.1 - Mortgage Loans Held for Portfolio (dollars in thousands) June 30, 2022 December 31, 2021 Real estate Fixed-rate 15-year single-family mortgages $ 247,499 $ 278,393 Fixed-rate 20- and 30-year single-family mortgages 2,608,527 2,793,682 Premiums 43,274 48,043 Discounts (1,707) (671) Deferred derivative gains, net 1,280 2,412 Total mortgage loans held for portfolio (1) 2,898,873 3,121,859 Less: allowance for credit losses (1,500) (1,700) Total mortgage loans, net of allowance for credit losses $ 2,897,373 $ 3,120,159 ________________________ (1) Excludes accrued interest receivable of $14.7 million and $15.7 million at June 30, 2022, and December 31, 2021, respectively. Table 5.2 - Mortgage Loans Held for Portfolio by Collateral/Guarantee Type (dollars in thousands) June 30, 2022 December 31, 2021 Conventional mortgage loans $ 2,682,484 $ 2,880,354 Government mortgage loans 173,542 191,721 Total par value $ 2,856,026 $ 3,072,075 Credit-Enhancements. Our allowance for credit losses factors in the credit-enhancements associated with conventional mortgage loans under the MPF program. These credit-enhancements apply after the homeowner's equity is exhausted and can include primary and/or supplemental mortgage insurance or other kinds of credit-enhancement. The credit risk analysis of our conventional loans is performed at the individual master commitment level to determine the credit-enhancements available to recover losses on loans under each individual master commitment. For additional information on credit enhancements see Part II — Item 8 — Financial Statements and Supplementary Data — Note 7 — Mortgage Loans Held for Portfolio — Credit-Enhancements in the 2021 Annual Report. Payment Status of Mortgage Loans. Payment status is a key credit quality indicator for conventional mortgage loans and allows us to monitor borrower performance. A past due loan is one where the borrower has failed to make a full payment of principal and interest within 30 days of its due date. Other delinquency statistics include nonaccrual loans and loans in process of foreclosure. Tables 5.3 and 5.4 present the payment status for conventional mortgage loans and other delinquency statistics for all mortgage loans at June 30, 2022, and December 31, 2021. Table 5.3 - Credit Quality Indicator for Conventional Mortgage Loans (dollars in thousands) June 30, 2022 Year of Origination Payment Status at Amortized Cost (1) Prior to 2018 2018 to 2022 Total Past due 30-59 days delinquent $ 7,149 $ 4,069 $ 11,218 Past due 60-89 days delinquent 3,099 2,602 5,701 Past due 90 days or more delinquent 9,838 6,754 16,592 Total past due 20,086 13,425 33,511 Total current loans 1,253,021 1,435,500 2,688,521 Total conventional mortgage loans $ 1,273,107 $ 1,448,925 $ 2,722,032 December 31, 2021 Year of Origination Payment Status at Amortized Cost (1) Prior to 2017 2017 to 2021 Total Past due 30-59 days delinquent $ 7,719 $ 8,053 $ 15,772 Past due 60-89 days delinquent 3,312 2,660 5,972 Past due 90 days or more delinquent 11,932 9,196 21,128 Total past due 22,963 19,909 42,872 Total current loans 1,153,115 1,730,438 2,883,553 Total conventional mortgage loans $ 1,176,078 $ 1,750,347 $ 2,926,425 _________________________ (1) Amortized cost excludes accrued interest receivable. Table 5.4 - Other Delinquency Statistics of Mortgage Loans (dollars in thousands) June 30, 2022 Amortized Cost in Conventional Mortgage Loans Amortized Cost in Government Mortgage Loans Total In process of foreclosure (1) $ 1,844 $ 878 $ 2,722 Serious delinquency rate (2) 0.62 % 1.68 % 0.68 % Past due 90 days or more still accruing interest $ — $ 2,966 $ 2,966 Loans on nonaccrual status (3) $ 16,821 $ — $ 16,821 December 31, 2021 Amortized Cost in Conventional Mortgage Loans Amortized Cost in Government Mortgage Loans Total In process of foreclosure (1) $ 786 $ 935 $ 1,721 Serious delinquency rate (2) 0.74 % 2.24 % 0.83 % Past due 90 days or more still accruing interest $ — $ 4,383 $ 4,383 Loans on nonaccrual status (3) $ 21,529 $ — $ 21,529 _______________________ (1) Includes loans where the decision of foreclosure or a similar alternative such as the pursuit of a deed-in-lieu of foreclosure has been reported. (2) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the recorded investment in the total loan portfolio class. (3) As of June 30, 2022, and December 31, 2021, $7.7 million and $11.8 million, respectively, of conventional mortgage loans on nonaccrual status did not have an associated allowance for credit losses because these loans were either charged off or the fair value of the underlying collateral, including any credit enhancements, is greater than the amortized cost of the loans. Allowance for Credit Losses for Mortgage Loans. Conventional Mortgage Loans. Conventional loans are evaluated collectively when similar risk characteristics exist. Conventional loans that do not share risk characteristics with other loans are evaluated for expected credit losses on an individual basis. We determine our allowance for credit losses on conventional loans through analyses that include consideration of various loan portfolio and collateral-related characteristics, such as past performance, current conditions, and reasonable and supportable forecasts of expected economic conditions. We use a discounted cash flow model to project our expected losses. We use a third-party model to project cash flows to estimate the expected credit losses over the life of the loans. The model relies on a number of inputs, such as both current and forecasted property values and interest rates as well as historical borrower behavior. We incorporate associated credit enhancements and expected recoveries, if any, to determine our estimate of 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 come substantially from the sale of the underlying collateral. We estimate the fair value of this collateral by using a third-party 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. We will reserve for these estimated losses or record a direct charge-off of the loan balance if certain triggering criteria are met. Table 5.5 presents a roll forward of the allowance for credit losses on conventional mortgage loans for the three and six months ended June 30, 2022, and 2021. Table 5.5 - Allowance for Credit Losses on Conventional Mortgage Loans (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Allowance for credit losses (1) Balance, beginning of period $ 1,600 $ 1,900 $ 1,700 $ 3,100 (Charge-offs) recoveries (1) 26 (1) 52 (Reduction of) provision for credit losses (99) 199 (199) (1,027) Balance, end of period $ 1,500 $ 2,125 $ 1,500 $ 2,125 _________________________ (1) These amounts exclude government mortgage loans because we make no allowance for credit losses based on our investments in government mortgage loans, as discussed below under — Government Mortgage Loans Held for Portfolio. Government Mortgage Loans Held for Portfolio. We invest in government mortgage loans secured by one- to four-family residential properties. Government mortgage loans are mortgage loans insured or guaranteed by the Federal Housing Administration (the FHA), the U.S. Department of Veterans Affairs (the VA), the Rural Housing Service of the U.S. Department of Agriculture (RHS), or by the U.S. Department of Housing and Urban Development (HUD). The servicer provides and maintains insurance or a guarantee from the applicable government agency. The servicer is responsible for compliance with all government agency requirements and for obtaining the benefit of the applicable insurance or guaranty with respect to defaulted government-guaranteed mortgage loans. Any losses incurred on these loans that are not recovered from the insurer or guarantor are absorbed by the related servicer. Therefore, we only have credit risk for these loans if the servicer fails to pay for losses not covered by insurance or guarantees, but in such instances, we have recourse against the servicer for such failure. Due to government guarantees or insurance on our government loans, there is no allowance for credit losses for the government mortgage loan portfolio as of June 30, 2022, and December 31, 2021. Additionally, government mortgage loans are not placed on nonaccrual status due to the government guarantee or insurance on these loans and the contractual obligation of the loan servicers to repurchase their related loans when certain criteria are met.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities [Text Block]	Derivatives and Hedging Activities Table 6.1 - Fair Value of Derivative Instruments (dollars in thousands) June 30, 2022 December 31, 2021 Notional Derivative Derivative Notional Derivative Derivative Derivatives designated as hedging instruments Interest-rate swaps $ 35,907,900 $ 3,496 $ (1,040,253) $ 26,589,956 $ 362 $ (163,457) Forward-start interest-rate swaps 1,391,000 — (3,923) 1,391,000 48 (428) Total derivatives designated as hedging instruments 37,298,900 3,496 (1,044,176) 27,980,956 410 (163,885) Derivatives not designated as hedging instruments Interest-rate swaps 329,800 — (2,689) 900,425 3,440 (13,663) CO bond firm commitments 20,000 28 — 55,000 54 (30) Mortgage-delivery commitments (1) 6,864 108 — 3,164 68 — Total derivatives not designated as hedging instruments 356,664 136 (2,689) 958,589 3,562 (13,693) Total notional amount of derivatives $ 37,655,564 $ 28,939,545 Total derivatives before netting and collateral adjustments 3,632 (1,046,865) 3,972 (177,578) Netting adjustments and cash collateral, including related accrued interest (2) 385,607 1,046,865 374,560 138,634 Derivative assets and derivative liabilities $ 389,239 $ — $ 378,532 $ (38,944) _______________________ (1) Mortgage-delivery commitments are classified as derivatives with changes in fair value recorded in other income. (2) Amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions with the same counterparty. Cash collateral posted, including accrued interest, was $1.4 billion and $513.2 million at June 30, 2022, and December 31, 2021, respectively. The change in cash collateral posted is included in the net change in interest-bearing deposits in the statement of cash flows. Changes in fair value of the derivative hedging instrument and the hedged item attributable to the hedged risk for designated fair-value hedges are recorded in net interest income in the same line as the earnings effect of the hedged item. For designated cash-flow hedges, the entire change in the fair value of the hedging instrument (assuming it is included in the assessment of hedge effectiveness) is reported in other comprehensive income until the hedged transaction affects earnings. At that time, this amount is reclassified from other comprehensive income and recorded in net interest income in the same line as the earnings effect of the hedged item. Tables 6.2 presents the net gains (losses) on qualifying fair-value hedging relationships. Gains (losses) on derivatives include unrealized changes in fair value as well as net interest settlements. Table 6.2 - Net Gains (Losses) on Fair Value Hedging Relationships (dollars in thousands) For the Three Months Ended June 30, 2022 Advances Available-for-sale Securities CO Bonds Total interest income (expense) in the statements of operations $ 69,277 $ 62,405 $ (78,242) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 48,392 $ 350,986 $ (238,288) Hedged items (47,489) (334,705) 238,516 Net changes in fair value before price alignment interest 903 16,281 228 Price alignment interest (1) (185) (949) 31 Net interest settlements on derivatives (2)(3) (5,205) (21,256) 15,049 Net (losses) gains on qualifying hedging relationships (4,487) (5,924) 15,308 Amortization/accretion of discontinued hedging relationships (273) — 510 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (4,760) $ (5,924) $ 15,818 For the Three Months Ended June 30, 2021 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 43,230 $ 10,841 $ (53,684) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ (964) $ (128,985) $ 36,662 Hedged items 718 124,871 (36,596) Net changes in fair value before price alignment interest (246) (4,114) 66 Price alignment interest (1) 1 16 — Net interest settlements on derivatives (2)(3) (16,042) (29,847) 16,000 Net (losses) gains on qualifying hedging relationships (16,287) (33,945) 16,066 Amortization/accretion of discontinued hedging relationships (705) — 749 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (16,992) $ (33,945) $ 16,815 For the Six Months Ended June 30, 2022 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 103,270 $ 107,138 $ (122,142) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 144,241 $ 987,668 $ (807,521) Hedged items (141,985) (957,045) 808,226 Net changes in fair value before price alignment interest 2,256 30,623 705 Price alignment interest (1) (207) (1,000) 33 Net interest settlements on derivatives (2)(3) (15,131) (58,647) 41,840 Net (losses) gains on qualifying hedging relationships (13,082) (29,024) 42,578 Amortization/accretion of discontinued hedging relationships (536) — 1,012 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (13,618) $ (29,024) $ 43,590 For the Six Months Ended June 30, 2021 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 92,782 $ 33,836 $ (115,285) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 40,897 $ 127,518 $ (67,857) Hedged items (40,140) (124,068) 68,159 Net changes in fair value before price alignment interest 757 3,450 302 Price alignment interest (1) 16 65 (3) Net interest settlements on derivatives (2)(3) (31,867) (51,784) 23,470 Net (losses) gains on qualifying hedging relationships (31,094) (48,269) 23,769 Amortization/accretion of discontinued hedging relationships (1,404) — 1,661 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (32,498) $ (48,269) $ 25,430 _______________________ (1) Relates to derivatives for which variation margin payments are characterized as daily settled contracts. (2) Represents interest income/expense on derivatives in qualifying fair-value hedging relationships. Net interest settlements on derivatives that are not in qualifying fair-value hedging relationships are reported in other income. (3) Excludes the interest income/expense of the respective hedged items recorded in net interest income. Tables 6.3 presents the net gains (losses) on qualifying cash flow hedging relationships. Table 6.3 - Net Gains (Losses) on Cash Flow Hedging Relationships (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Forward-start interest rate swaps - CO Bonds Losses reclassified from accumulated other comprehensive loss into interest expense $ (1,455) $ (1,506) $ (2,893) $ (3,063) Gains recognized in other comprehensive income 22,182 (14,224) 44,240 (9,038) For the three months ended June 30, 2022 and 2021, there were no reclassifications from accumulated other comprehensive (loss) income into earnings as a result of the discontinuance of cash-flow hedges because the original forecasted transactions were not expected to occur by the end of the originally specified time period or within a two-month period thereafter. As of June 30, 2022, the maximum length of time over which we are hedging our exposure to the variability in future cash flows for forecasted transactions is nine years. As of June 30, 2022, the amount of deferred net losses on derivatives accumulated in other comprehensive loss related to cash flow hedges expected to be reclassified to earnings during the next 12 months is $4.9 million. Table 6.4 - Cumulative Basis Adjustments for Fair-Value Hedges (dollars in thousands) June 30, 2022 Line Item in Statement of Condition Amortized Cost of Hedged Asset/ Liability (1) Basis Adjustments for Active Hedging Relationships Included in Amortized Cost Basis Adjustments for Discontinued Hedging Relationships Included in Amortized Cost Cumulative Amount of Fair Value Hedging Basis Adjustments Advances $ 2,487,643 $ (135,508) $ 8,356 $ (127,152) Available-for-sale securities 11,721,006 (746,699) — (746,699) Consolidated obligation bonds 19,742,699 (983,854) 30,583 (953,271) _______________________ (1) Includes only the amortized cost of hedged items in fair-value hedging relationships. Table 6.5 - Net Gains and Losses on Derivatives and Hedging Activities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Derivatives not designated as hedging instruments: Economic hedges: Interest-rate swaps $ 525 $ 193 $ 4 $ 7 CO Bond firm commitments (521) — — 19 Mortgage-delivery commitments (118) 253 (791) (433) Total net (losses) gains related to derivatives not designated as hedging instruments (114) 446 (787) (407) Other (1) — 1 — 6 Net (losses) gains on derivatives and hedging activities $ (114) $ 447 $ (787) $ (401) ______________________ (1) Consists of price alignment amount on derivatives for which variation margin is characterized as a daily settlement amount. Impacts on Statement of Cash Flows. Cash paid or received for cleared derivatives variation margin is included on the statement of cash flows in either net change in derivatives and hedging activities as an operating activity or net payments on derivatives with a financing element, as a financing activity. The table below shows the impact of variation margin for cleared derivatives on the statement of cash flows: Table 6.6 - Impact of Variation Margin for Cleared Derivatives on the Statement of Cash Flows (dollars in thousands) Increase on Cash Flow Statement For the Six Months Ended June 30, 2022 2021 Operating activity - net change in derivatives and hedging activities $ 1,142,853 $ 100,548 Financing activity - net payments on derivatives with a financing element 107,216 42,215 Total variation margin received on cleared derivatives $ 1,250,069 $ 142,763 Managing Credit Risk on Derivatives. We enter into derivatives that we clear (cleared derivatives) with a derivatives clearing organization (DCO), our counterparty for such derivatives. We also enter into derivatives that are not cleared (uncleared derivatives) under master-netting agreements. Currently derivatives that contain any optionality are not eligible for clearing. Accordingly, such derivatives, including the derivatives used to hedge issuance of callable CO bonds, are executed with our uncleared derivatives counterparties. Certain of our uncleared derivatives master-netting agreements contain provisions that require us to post additional collateral with our uncleared derivatives counterparties if our credit ratings are lowered. Under the terms that govern such agreements, if our credit rating is lowered by Moody's or S&P to a certain level, we are required to deliver additional collateral on uncleared derivatives. In the event of a split between such credit ratings, the lower rating governs. The aggregate fair value of all uncleared derivatives with these provisions that were in a net-liability position (before cash collateral and related accrued interest) at June 30, 2022, was $941.5 million for which we had delivered collateral with a post-haircut value of $1.0 billion in accordance with the terms of the master-netting agreements. Securities collateral is subject to valuation haircuts in accordance with the terms of the master-netting arrangements. Table 6.7 sets forth the post-haircut value of incremental collateral that certain uncleared derivatives counterparties could have required us to deliver based on incremental credit rating downgrades at June 30, 2022. Table 6.7 - Post Haircut Value of Incremental Collateral to be Delivered as of June 30, 2022 (dollars in thousands) Ratings Downgrade (1) From To Incremental Collateral AA+ AA or AA- $ — AA- A+, A or A- — A- below A- 43,803 _______________________ (1) Ratings are expressed in this table according to S&P's conventions but include the equivalent of such rating by Moody's. If there is a split rating, the lower rating is used. For cleared derivatives, the DCO is our counterparty. The DCO notifies the clearing member of the required initial and variation margin and our agent (clearing member) in turn notifies us. We utilize one of two DCOs for each cleared derivative transaction, CME Inc. or LCH Ltd. Based upon their rulebooks, we characterize variation margin payments as daily settlement payments, rather than as collateral. At both DCOs, posted initial margin is considered collateral. We post initial margin and exchange variation margin through a clearing member of the DCO which clears our trades, acts as our agent to the DCO and guarantees our performance to the DCO, subject to the terms of relevant agreements. These arrangements expose us to credit risk in the event that one of our clearing members or one of the DCOs fails to meet its obligations. The use of cleared derivatives is intended to mitigate credit risk exposure because the DCO, which is fully secured at all times through margin received from its clearing members, is substituted for the credit risk exposure of individual counterparties in uncleared derivatives, and collateral is posted at least once daily for changes in the fair value of cleared derivatives through a clearing member. For cleared derivatives, the DCO determines initial margin requirements. Our clearing members, which are CFTC-registered futures commission merchants, may require us to post margin in excess of DCO requirements based on our credit or other considerations, including, but not limited to, credit rating downgrades. We were not required to post any such excess margin by our clearing members based on credit or any other considerations at June 30, 2022. Offsetting of Certain Derivatives. We present derivatives, any related cash collateral received or pledged, and associated accrued interest, on a net basis by counterparty. We have analyzed the rights, rules, and regulations governing our cleared and uncleared derivatives and determined that those rights, rules, and regulations should result in a net claim with each of our counterparties (which, in the context of cleared derivatives is through each of our clearing members with the related DCO) upon an event of default of our counterparty (solely in the case of uncleared derivatives) or the bankruptcy, insolvency or a similar proceeding involving our counterparty (and/or one of our clearing members, in the case of cleared derivatives). For this purpose, "net claim" generally means a single net amount reflecting the aggregation of all amounts owed by us to the relevant counterparty and payable to us from the relevant counterparty. Table 6.8 presents separately the fair value of derivatives that are subject to netting due to a legal right of offset based on the terms of our master netting arrangements or similar agreements as of June 30, 2022, and December 31, 2021, and the fair value of derivatives that are not subject to such netting. Derivatives subject to netting include any related cash collateral received from or pledged to counterparties. Table 6.8 - Netting of Derivative Assets and Derivative Liabilities (dollars in thousands) June 30, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset Net Amount Derivative Assets Interest-rate swaps Uncleared $ 1,810 $ 59,771 $ 61,581 $ — $ 61,581 Cleared 1,686 325,836 327,522 — 327,522 CO bond firm commitments $ 28 28 28 Mortgage delivery commitments 108 108 108 Total $ 389,239 $ 389,239 Derivative Liabilities Interest-rate swaps Uncleared $ (943,323) $ 943,323 $ — $ — $ — Cleared (103,542) 103,542 — — — Total $ — $ — December 31, 2021 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset (2) Net Amount Derivative Assets Interest-rate swaps Uncleared $ 327 $ (103) $ 224 $ — $ 224 Cleared 3,523 374,663 378,186 — 378,186 CO bond firm commitments $ 54 54 54 Mortgage delivery commitment 68 68 68 Total $ 378,532 $ 378,532 Derivative Liabilities Interest-rate swaps Uncleared $ (171,374) $ 132,460 $ (38,914) $ 28,374 $ (10,540) Cleared (6,175) 6,175 — — — CO bond firm commitments $ (30) (30) (30) Total $ (38,944) $ (10,570) _______________________ (1) Includes gross amounts of netting adjustments and cash collateral.

Deposits

Deposits	6 Months Ended
	Jun. 30, 2022
Deposits [Abstract]
Deposits [Text Block]	Deposits We offer demand and overnight deposits for members and qualifying nonmembers. Members that service mortgage loans may deposit funds collected in connection with mortgage loans pending disbursement of such funds to the owners of the mortgage loans, which we classify as "other" in the following table. Table 7.1 - Deposits (dollars in thousands) June 30, 2022 December 31, 2021 Interest-bearing Demand and overnight $ 1,033,389 $ 831,009 Other 1,846 1,998 Noninterest-bearing Other 31,224 51,025 Total deposits $ 1,066,459 $ 884,032

Consolidated Obligations

Consolidated Obligations	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Consolidated Obligations [Text Block]	Consolidated Obligations CO Bonds. CO bonds for which we have received issuance proceeds and are primarily liable were as follows: Table 8.1 - CO Bonds Outstanding by Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Amount Weighted Average Rate (1) Amount Weighted Average Rate (1) Due in one year or less $ 11,992,260 1.72 % $ 6,919,220 0.79 % Due after one year through two years 3,275,075 1.92 3,069,155 1.18 Due after two years through three years 4,962,995 1.28 3,514,735 1.09 Due after three years through four years 5,080,415 0.88 3,029,600 0.88 Due after four years through five years 4,135,320 1.32 5,735,605 0.91 Thereafter 4,206,865 2.00 4,456,865 1.91 Total par value 33,652,930 1.53 % 26,725,180 1.10 % Premiums 30,368 40,251 Discounts (8,422) (9,011) Hedging adjustments (953,271) (143,388) Total $ 32,721,605 $ 26,613,032 _______________________ (1) The CO bonds' weighted-average rate excludes concession fees. Table 8.2 - CO Bonds Outstanding by Call Feature (dollars in thousands) June 30, 2022 December 31, 2021 Noncallable and nonputable $ 12,961,180 $ 13,924,180 Callable 20,691,750 12,801,000 Total par value $ 33,652,930 $ 26,725,180 Table 8.3 - CO Bonds Outstanding by Contractual Maturity or Next Call Date (dollars in thousands) June 30, 2022 December 31, 2021 Due in one year or less $ 27,530,010 $ 19,150,220 Due after one year through two years 1,762,325 3,461,155 Due after two years through three years 1,221,995 1,044,735 Due after three years through four years 1,669,415 1,544,600 Due after four years through five years 499,320 539,605 Thereafter 969,865 984,865 Total par value $ 33,652,930 $ 26,725,180 Table 8.4 - CO Bonds by Interest Rate-Payment Type (dollars in thousands) June 30, 2022 December 31, 2021 Fixed-rate $ 22,652,180 $ 17,707,180 Simple variable-rate 5,507,000 4,803,000 Step-up (1) 5,493,750 4,215,000 Total par value $ 33,652,930 $ 26,725,180 _______________________ (1) Step-up bonds pay interest at increasing fixed rates for specified intervals over the life of the CO bond and can be called at our option on the step-up dates. CO Discount Notes. Outstanding CO discount notes for which we were primarily liable, all of which are due within one year, were as follows: Table 8.5 - CO Discount Notes Outstanding (dollars in thousands) Book Value Par Value Weighted Average Rate (1) June 30, 2022 $ 25,096,230 $ 25,119,223 1.36 % December 31, 2021 $ 2,275,320 $ 2,275,519 0.05 % _______________________ (1) CO discount notes' weighted-average rate represents a yield to maturity excluding concession fees.

Affordable Housing Program

Affordable Housing Program	6 Months Ended
	Jun. 30, 2022
Affordable Housing Program AHP [Abstract]
Affordable Housing Program [Text Block]	Affordable Housing Program Table 9.1 - AHP Liability (dollars in thousands) For the Six Months Ended For the Year Ended June 30, 2022 December 31, 2021 Balance at beginning of year $ 70,503 $ 78,640 AHP expense for the period 7,667 7,739 AHP voluntary contribution 13,980 4,761 AHP direct grant disbursements (6,708) (17,980) AHP subsidy for AHP advance disbursements (1,291) (5,806) Return of previously disbursed grants and subsidies 935 3,149 Balance at end of period $ 85,086 $ 70,503

Capital

Capital	6 Months Ended
	Jun. 30, 2022
Banking Regulation, Total Capital [Abstract]
Capital [Text Block]	Capital We are subject to capital requirements under our capital plan, the FHLBank Act, and FHFA regulations and guidance: 1. Risk-based capital. We are required to maintain at all times permanent capital, which is our Class B stock, including Class B stock classified as mandatorily redeemable capital stock, and retained earnings, in an amount at least equal to the sum of our credit-risk capital requirement, market-risk capital requirement, and operational-risk capital requirement, calculated in accordance with FHFA rules and regulations, referred to herein as the risk-based capital requirement. Only permanent capital satisfies the risk-based capital requirement. 2. Total regulatory capital. We are required to maintain at all times a total capital-to-assets ratio of at least four percent. Total regulatory capital is the sum of permanent capital, the amount of any general loss allowance if consistent with GAAP and not established for specific assets, and other amounts from sources determined by the FHFA as available to absorb losses. 3. Leverage capital. We are required to maintain at all times a leverage capital-to-assets ratio of at least five percent. Leverage capital is calculated by multiplying permanent capital by 1.5 and adding to this product all other components of total capital. The FHFA has authority to require us to maintain a greater amount of permanent capital than is required as defined by the risk-based capital requirements. Table 10.1 - Regulatory Capital Requirements (dollars in thousands) Risk-Based Capital Requirements June 30, December 31, Permanent capital Class B capital stock $ 1,557,243 $ 953,638 Mandatorily redeemable capital stock 10,703 13,562 Retained earnings 1,607,178 1,548,406 Total permanent capital $ 3,175,124 $ 2,515,606 Risk-based capital requirement Credit-risk capital $ 111,551 $ 84,301 Market-risk capital 224,681 213,467 Operations-risk capital 100,870 89,330 Total risk-based capital requirement $ 437,102 $ 387,098 Permanent capital in excess of risk-based capital requirement $ 2,738,022 $ 2,128,508 June 30, 2022 December 31, 2021 Required Actual Required Actual Capital Ratio Risk-based capital $ 437,102 $ 3,175,124 $ 387,098 $ 2,515,606 Total regulatory capital 2,482,560 3,175,124 1,301,812 2,515,606 Total capital-to-asset ratio 4.0 % 5.1 % 4.0 % 7.7 % Leverage Ratio Leverage capital $ 3,103,200 $ 4,762,686 $ 1,627,265 $ 3,773,409 Leverage capital-to-assets ratio 5.0 % 7.7 % 5.0 % 11.6 % We are a cooperative whose members own most of our capital stock. Former members, including certain nonmembers that own our capital stock as a result of merger or acquisition, relocation, or involuntary termination of membership, own the remaining capital stock to support business transactions still carried on our statement of condition or, for a small amount of capital stock held by former members, until the five-year redemption period applicable to their membership stock is complete. Shares of capital stock cannot be purchased or sold except between us and our members at $100 per share par value. For the periods presented in these financial statements, each member is required to purchase Class B stock equal to the sum of 0.20 percent of certain member assets eligible to secure advances under the FHLBank Act, provided that this amount is neither less than $10 thousand nor more than $10 million (the membership stock investment requirement), and 3.00 percent for overnight advances, 4.00 percent for all other advances, 0.25 percent for outstanding letters of credit, and 4.50 percent of the par value of certain mortgages we purchased through the MPF program (collectively, the activity-based stock-investment requirement). The sum of the membership stock investment requirement and the activity-based stock investment requirement, rounded up to the nearest whole share, represents the total stock investment requirement. Restricted Retained Earnings. At June 30, 2022, our total required balance to the restricted retained earnings account was $421.4 million compared with our total balance of $376.6 million. During the quarter ended June 30, 2022, we contributed $8.2 million of our net income to restricted retained earnings. Restricted retained earnings are not available to pay dividends.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2022
AOCI Attributable to Parent [Abstract]
Accumulated Other Comprehensive Income (Loss) [Text Block]	Accumulated Other Comprehensive Income (Loss) Table 11.1 - Accumulated Other Comprehensive Income (Loss) (dollars in thousands) Net Unrealized Gain (Loss) on Available-for-sale Securities Net Unrealized (Loss) Gain Relating to Hedging Activities Pension and Postretirement Benefits Total Balance, March 31, 2021 $ 46,649 $ (17,622) $ (7,804) $ 21,223 Other comprehensive (loss) income before reclassifications: Net unrealized gains (losses) 37,811 (14,224) — 23,587 Net actuarial gain — — 1,292 1,292 Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 1,506 — 1,506 Amortization - pension and postretirement benefits (2) — — 37 37 Other comprehensive income (loss) 37,811 (12,718) 1,329 26,422 Balance June 30, 2021 $ 84,460 $ (30,340) $ (6,475) $ 47,645 Balance, March 31, 2022 $ (83,273) $ (2,795) $ (2,732) $ (88,800) Other comprehensive (loss) income before reclassifications: Net unrealized (losses) gains (150,748) 22,182 — (128,566) Net actuarial loss — — (685) (685) Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 1,455 — 1,455 Amortization - pension and postretirement benefits (2) — — 187 187 Other comprehensive (loss) income (150,748) 23,637 (498) (127,609) Balance, June 30, 2022 $ (234,021) $ 20,842 $ (3,230) $ (216,409) Net Unrealized Gain (Loss) on Available-for-sale Securities Net Unrealized (Loss) Gain Relating to Hedging Activities Pension and Postretirement Benefits Total Balance, December 31, 2020 $ 48,568 $ (24,365) $ (8,064) $ 16,139 Other comprehensive income (loss) before reclassifications: Net unrealized gains (losses) 35,892 (9,038) — 26,854 Net actuarial gain — — 1,292 1,292 Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 3,063 — 3,063 Amortization - pension and postretirement benefits (2) — — 297 297 Other comprehensive income (loss) 35,892 (5,975) 1,589 31,506 Balance, June 30, 2021 $ 84,460 $ (30,340) $ (6,475) $ 47,645 Balance, December 31, 2021 $ 58,013 $ (26,291) $ (2,755) $ 28,967 Other comprehensive (loss) income before reclassifications: Net unrealized (losses) gains (292,036) 44,240 — (247,796) Net actuarial loss — — (685) (685) Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 2,893 — 2,893 Amortization - pension and postretirement benefits (2) — — 210 210 Reclassification of realized net loss included in net income (3) 2 — — 2 Other comprehensive (loss) income (292,034) 47,133 (475) (245,376) Balance, June 30, 2022 $ (234,021) $ 20,842 $ (3,230) $ (216,409) _______________________ (1) Recorded in CO bond interest expense. (2) Recorded in other expenses in the statement of operations. (3) Recorded in other income (loss) in the statement of operations.

Fair Values

Fair Values	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value [Text Block]	Fair Values A fair-value hierarchy is used to prioritize the inputs of valuation techniques used to measure fair value. A description of the application of the fair-value hierarchy, valuation techniques, and significant inputs is disclosed in Part II — Item 8 — Financial Statements and Supplementary Data — Note 15 — Fair Values in the 2021 Annual Report. There have been no material changes in the fair-value hierarchy classification of financial assets and liabilities, valuation techniques, or significant inputs during the six months ended June 30, 2022. Table 12.1 presents the carrying value, fair value, and fair value hierarchy of our financial assets and liabilities at June 30, 2022, and December 31, 2021. We record trading securities, available-for-sale securities, derivative assets, derivative liabilities, and certain other assets at fair value on a recurring basis and certain mortgage loans, and certain other assets at fair value on a non-recurring basis. We record 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 non-recurring basis. Table 12.1 - Fair Value Summary (dollars in thousands) June 30, 2022 Carrying Total Fair Value Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Financial instruments Assets: Cash and due from banks $ 65,965 $ 65,965 $ 65,965 $ — $ — $ — Interest-bearing deposits 395,230 395,230 395,230 — — — Securities purchased under agreements to resell 11,250,000 11,249,945 — 11,249,945 — — Federal funds sold 2,998,000 2,997,988 — 2,997,988 — — Trading securities (1) 980 980 — 980 — — Available-for-sale securities (1) 13,496,627 13,496,627 — 13,436,094 60,533 — Held-to-maturity securities 113,697 114,516 — 114,516 — — Advances 30,318,486 30,213,245 — 30,213,245 — — Mortgage loans, net 2,897,373 2,734,981 — 2,711,151 23,830 — Accrued interest receivable 85,367 85,367 — 85,367 — — Derivative assets (1) 389,239 389,239 — 3,632 — 385,607 Other assets (1) 30,065 30,065 13,308 16,757 — — Liabilities: Deposits (1,066,459) (1,066,426) — (1,066,426) — — COs: Bonds (32,721,605) (32,435,784) — (32,435,784) — — Discount notes (25,096,230) (25,093,489) — (25,093,489) — — Mandatorily redeemable capital stock (10,703) (10,703) (10,703) — — — Accrued interest payable (86,722) (86,722) — (86,722) — — Derivative liabilities (1) — — — (1,046,865) — 1,046,865 Other: Commitments to extend credit for advances — (13,526) — (13,526) — — Standby letters of credit (1,366) (1,366) — (1,366) — — December 31, 2021 Carrying Total Fair Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Financial instruments Assets: Cash and due from banks $ 204,993 $ 204,993 $ 204,993 $ — $ — $ — Interest-bearing deposits 85,153 85,153 85,153 — — — Securities purchased under agreements to resell 800,000 799,998 — 799,998 — — Federal funds sold 1,944,000 1,943,998 — 1,943,998 — — Trading securities (1) 501,867 501,867 — 501,867 — — Available-for-sale securities (1) 12,895,987 12,895,987 — 12,833,722 62,265 — Held-to-maturity securities 145,492 148,068 — 148,068 — — Advances 12,340,020 12,440,985 — 12,440,985 — — Mortgage loans, net 3,120,159 3,234,829 — 3,204,222 30,607 — Accrued interest receivable 68,360 68,360 — 68,360 — — Derivative assets (1) 378,532 378,532 — 3,972 — 374,560 Other assets (1) 32,570 32,570 13,937 18,633 — — Liabilities: Deposits (884,032) (884,029) — (884,029) — — COs: Bonds (26,613,032) (26,882,036) — (26,882,036) — — Discount notes (2,275,320) (2,275,276) — (2,275,276) — — Mandatorily redeemable capital stock (13,562) (13,562) (13,562) — — — Accrued interest payable (60,968) (60,968) — (60,968) — — Derivative liabilities (1) (38,944) (38,944) — (177,578) — 138,634 Other: Commitments to extend credit for advances — (6,196) — (6,196) — — Standby letters of credit (1,146) (1,146) — (1,146) — — _______________________ (1) Carried at fair value and measured on a recurring basis. (2) These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty. Fair Value Measured on a Recurring and Nonrecurring Basis. Table 12.2 - Fair Value of Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis (dollars in thousands) June 30, 2022 Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Total Assets: Carried at fair value on a recurring basis Trading securities: Corporate bonds $ — $ 980 $ — $ — $ 980 Available-for-sale securities: HFA securities — — 60,533 — 60,533 U.S. Treasury obligations — 5,889,613 — — 5,889,613 Supranational institutions — 369,247 — — 369,247 U.S. government-owned corporations — 249,179 — — 249,179 GSE — 106,506 — — 106,506 U.S. government guaranteed – single-family MBS — 17,971 — — 17,971 U.S. government guaranteed – multifamily MBS — 518,612 — — 518,612 GSE – single-family MBS — 883,424 — — 883,424 GSE – multifamily MBS — 5,401,542 — — 5,401,542 Total available-for-sale securities — 13,436,094 60,533 — 13,496,627 Derivative assets: Interest-rate-exchange agreements — 3,496 — 385,607 389,103 CO Bond firm commitments — 28 — — 28 Mortgage delivery commitments — 108 — — 108 Total derivative assets — 3,632 — 385,607 389,239 Other assets 13,308 16,757 — — 30,065 Total assets carried at fair value on a recurring basis $ 13,308 $ 13,457,463 $ 60,533 $ 385,607 $ 13,916,911 Carried at fair value on a nonrecurring basis (2) Mortgage loans held for portfolio $ — $ — $ 90 $ — $ 90 Total assets carried at fair value on a nonrecurring basis $ — $ — $ 90 $ — $ 90 Liabilities: Carried at fair value on a recurring basis Derivative liabilities Interest-rate-exchange agreements $ — $ (1,046,865) $ — $ 1,046,865 $ — Total liabilities carried at fair value on a recurring basis $ — $ (1,046,865) $ — $ 1,046,865 $ — December 31, 2021 Level 1 Level 2 Level 3 Netting (1) Total Assets: Carried at fair value on a recurring basis Trading securities: Corporate bonds $ — $ 1,442 $ — $ — $ 1,442 U.S. Treasury obligations — 500,425 — — 500,425 Total trading securities — 501,867 — — 501,867 Available-for-sale securities: HFA securities — — 62,265 — 62,265 U.S. Treasury obligations — 5,084,546 — — 5,084,546 Supranational institutions — 403,765 — — 403,765 U.S. government-owned corporations — 306,864 — — 306,864 GSE — 126,472 — — 126,472 U.S. government guaranteed – single-family MBS — 21,535 — — 21,535 U.S. government guaranteed – multifamily MBS — 541,405 — — 541,405 GSE – single-family MBS — 1,103,714 — — 1,103,714 GSE – multifamily MBS — 5,245,421 — — 5,245,421 Total available-for-sale securities — 12,833,722 62,265 — 12,895,987 Derivative assets: Interest-rate-exchange agreements — 3,850 — 374,560 378,410 CO Bond firm commitments — 54 — — 54 Mortgage delivery commitments — 68 — — 68 Total derivative assets — 3,972 — 374,560 378,532 Other assets 13,937 18,633 — — 32,570 Total assets carried at fair value on a recurring basis $ 13,937 $ 13,358,194 $ 62,265 $ 374,560 $ 13,808,956 Carried at fair value on a nonrecurring basis (2) Mortgage loans held for portfolio $ — $ — $ 3,860 $ — $ 3,860 Real-estate owned property (REO) — — 59 — 59 Total assets carried at fair value on a nonrecurring basis $ — $ — $ 3,919 $ — $ 3,919 Liabilities: Carried at fair value on a recurring basis Derivative liabilities Interest-rate-exchange agreements $ — $ (177,548) $ — $ 138,634 $ (38,914) CO Bond firm commitments — (30) — — (30) Total liabilities carried at fair value on a recurring basis $ — $ (177,578) $ — $ 138,634 $ (38,944) _______________________ (1) These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty. (2) We measure certain mortgage loans held for portfolio and REO at fair value on a nonrecurring basis, that is, they are not measured at fair value on an ongoing basis but are subject to fair-value adjustments only in certain circumstances. The fair values presented are as of the date the fair value adjustment was recorded. Table 12.3 presents a reconciliation of available-for-sale securities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2022 and 2021. Table 12.3 - Roll Forward of Level 3 Available-for-Sale HFA Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Balance at beginning of period $ 61,444 $ 107,908 $ 62,265 $ 122,549 Total (losses) gains included in other comprehensive income Net unrealized (losses) gains (51) 1,129 (872) 3,333 Sales, maturities, and settlements Maturities — (21,740) — (38,360) Settlements (860) (1,220) (860) (1,445) Balance at end of period $ 60,533 $ 86,077 $ 60,533 $ 86,077 Total amount of unrealized (losses) gains for the period included in other comprehensive income relating to securities held at period end $ (51) $ (1,132) $ (872) $ 217

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies [Text Block]	Commitments and Contingencies Joint and Several Liability. COs are backed by the financial resources of the FHLBanks. The FHFA has authority to require any FHLBank to repay all or a portion of the principal and interest on COs for which another FHLBank is the primary obligor. No FHLBank has ever been asked or required to repay the principal or interest on any CO on behalf of another FHLBank. We evaluate the financial condition of the other FHLBanks primarily based on known regulatory actions, publicly available financial information, and individual long-term credit-rating action as of each period-end presented. Based on this evaluation, as of June 30, 2022, and through the filing of this report, we do not believe it is likely that we will be required to repay the principal or interest on any CO on behalf of another FHLBank. We have considered applicable FASB guidance and determined it is not necessary to recognize a liability for the fair value of our joint and several liability for all of the COs. The joint and several obligation is mandated by the FHLBank Act, as implemented by FHFA regulations, and is not the result of an arms-length transaction among the FHLBanks. The FHLBanks have no control over the amount of the guaranty or the determination of how each FHLBank would perform under the joint and several obligation. Because the FHLBanks are subject to the authority of the FHFA as it relates to decisions involving the allocation of the joint and several liability for the FHLBanks' COs, the FHLBanks' joint and several obligation is excluded from the initial recognition and measurement provisions. Accordingly, we have not recognized a liability for our joint and several obligation related to other FHLBanks' COs at June 30, 2022, and December 31, 2021. The par amounts of other FHLBanks' outstanding COs for which we are jointly and severally liable totaled $823.7 billion and $623.9 billion at June 30, 2022, and December 31, 2021, respectively. See Note 8 — Consolidated Obligations for additional information. Off-Balance-Sheet Commitments Table 13.1 - Off-Balance Sheet Commitments (1) (dollars in thousands) June 30, 2022 December 31, 2021 Expire within one year Expire after one year Total Expire within one year Expire after one year Total Standby letters of credit outstanding (2) $ 9,997,436 $ 139,160 $ 10,136,596 $ 5,369,701 $ 132,096 $ 5,501,797 Commitments for unused lines of credit - advances (3) 1,114,335 — 1,114,335 1,095,844 — 1,095,844 Commitments to make additional advances 211,367 48,302 259,669 40,917 66,318 107,235 Commitments to invest in mortgage loans 6,864 — 6,864 3,164 — 3,164 Unsettled CO bonds, at par 445,000 — 445,000 260,000 — 260,000 Unsettled CO discount notes, at par 1,336,070 — 1,336,070 — — — __________________________ (1) We have determined that it is unnecessary to record any liability for credit losses on these agreements. (2) The amount of standby letters of credit outstanding excludes commitments to issue standby letters of credit that expire within one year. At June 30, 2022, and December 31, 2021, these amounts totaled $39.9 million and $16.1 million, respectively. Also excluded are commitments to issue standby letters of credit that expire after one year totaling $125 thousand at December 31, 2021. (3) Commitments for unused line-of-credit advances are generally for periods of up to 12 months. Since many of these commitments are not expected to be drawn upon, the total commitment amount does not necessarily indicate future liquidity requirements. Standby Letters of Credit. For a fee, we issue standby letters of credit on behalf of our members to support certain obligations of the members to third-party beneficiaries. These standby letters of credit are generally subject to the same collateralization and borrowing limits that are applicable to advances. Standby letters of credit may be offered to assist members and nonmember housing associates in facilitating residential housing finance, community lending, and asset-liability management, and to provide liquidity. In particular, members often use standby letters of credit as collateral for deposits from state and local government agencies. If we are required to make payment for a beneficiary's draw, our strategy is to take prompt action to recover the funds paid to the third-party beneficiary, including converting the payment amount into a collateralized advance to the primary obligor, withdrawing the payment amount from the primary obligor's demand deposit account with us, or selling collateral pledged by the primary obligor in a commercially reasonable manner to offset the payment amount. Historically, standby letters of credit usually expire without being drawn upon. At June 30, 2022, the terms of these standby letters of credit have original expiration periods of up to 20 years, expiring no later than 2031. Currently, we offer new standby letters of credit with terms typically up to 10 years, while terms greater than 10 years may be available on an exception basis. Unearned fees for the value of the guarantees related to standby letters of credit are recorded in other liabilities and totaled $1.4 million and $1.1 million at June 30, 2022, and December 31, 2021, respectively. Commitments to Invest in Mortgage Loans. Commitments to invest in mortgage loans are generally for periods not to exceed 60 business days. Such commitments are recorded as derivatives at their fair values on the statement of condition. Pledged Collateral. We have pledged securities as collateral related to derivatives. See Note 6 — Derivatives and Hedging Activities for additional information about our pledged collateral and other credit-risk-related contingent features. Legal Proceedings . We are subject to various legal proceedings arising in the normal course of business from time to time. We would record an accrual for a loss contingency when it is probable that a loss has been incurred and the amount can be reasonably estimated. Management does not anticipate that the ultimate liability, if any, arising out of these matters will have a material effect on our financial condition, results of operations, or cash flows.

Transactions with Shareholders

Transactions with Shareholders	6 Months Ended
	Jun. 30, 2022
Transactions with Shareholders [Abstract]
Transactions with Shareholders [Text Block]	Transactions with Shareholders Shareholder Concentrations. We consider shareholder concentrations as holdings of capital stock (including mandatorily redeemable capital stock) by individual members or nonmembers in excess of 10 percent of total capital stock outstanding at each period end. Table 14.1 - Shareholder Concentrations, Balance Sheet (dollars in thousands) Capital Stock Percent Par Percent of Total Par Value Total Accrued Percent of Total June 30, 2022 Citizens Bank, N.A. $ 504,748 32.2 % $ 12,019,143 39.4 % $ 7,275 22.6 % We held sufficient collateral to support the advances to the above institution such that we do not expect to incur any credit losses on these advances. Transactions with Directors' Institutions. We provide, in the ordinary course of business, products and services to members whose officers or directors serve on our board of directors. In accordance with FHFA regulations, transactions with directors' institutions are conducted on the same terms as those with any other member. Table 14.2 - Transactions with Directors' Institutions (dollars in thousands) Capital Stock Percent Par Percent of Total Par Value Total Accrued Percent of Total June 30, 2022 $ 517,080 33.0 % $ 12,191,403 40.0 % $ 7,376 22.9 % December 31, 2021 48,104 5.0 416,542 3.4 466 2.8

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent EventsOn July 22, 2022, the board of directors declared a cash dividend at an annualized rate of 3.72 percent based on daily average capital stock balances outstanding during the second quarter of 2022. The dividend, including dividends classified as interest expense on mandatorily redeemable capital stock, amounted to $11.5 million and was paid on August 2, 2022.

Basis of Presentation - Summary

Basis of Presentation - Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Investment, Policy	Gains and Losses on Sales. We compute gains and losses on sales of investment securities using the specific identification method and include these gains and losses in other income (loss).
Derivatives, Policy	Changes in fair value of the derivative hedging instrument and the hedged item attributable to the hedged risk for designated fair-value hedges are recorded in net interest income in the same line as the earnings effect of the hedged item. For designated cash-flow hedges, the entire change in the fair value of the hedging instrument (assuming it is included in the assessment of hedge effectiveness) is reported in other comprehensive income until the hedged transaction affects earnings. At that time, this amount is reclassified from other comprehensive income and recorded in net interest income in the same line as the earnings effect of the hedged itemManaging Credit Risk on Derivatives.We enter into derivatives that we clear (cleared derivatives) with a derivatives clearing organization (DCO), our counterparty for such derivatives. We also enter into derivatives that are not cleared (uncleared derivatives) under master-netting agreements.We utilize one of two DCOs for each cleared derivative transaction, CME Inc. or LCH Ltd. Based upon their rulebooks, we characterize variation margin payments as daily settlement payments, rather than as collateral. At both DCOs, posted initial margin is considered collateral.
Credit Loss, Financial Instrument, Policy	Allowance for Credit Losses on Available-for-Sale Securities and Held-to-Maturity SecuritiesWe evaluate available-for-sale and held-to-maturity investment securities for credit losses on a quarterly basis.
Fair Value of Financial Instruments, Policy [Policy Text Block]	We record trading securities, available-for-sale securities, derivative assets, derivative liabilities, and certain other assets at fair value on a recurring basis and certain mortgage loans, and certain other assets at fair value on a non-recurring basis. We record all other financial assets and liabilities at amortized cost.
Joint and Several Liability Policy [Policy Text Block]	We evaluate the financial condition of the other FHLBanks primarily based on known regulatory actions, publicly available financial information, and individual long-term credit-rating action as of each period-end presented.

Investments (Tables)

Investments (Tables)	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]		Table 3.1 - Trading Securities by Major Security Type (dollars in thousands) June 30, 2022 December 31, 2021 Corporate bonds $ 980 $ 1,442 U.S. Treasury obligations — 500,425 Total $ 980 $ 501,867
Gain (Loss) on Securities [Table Text Block]		Table 3.2 - Net Losses on Trading Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Net losses on trading securities held at period end $ (252) $ (12,659) $ (462) $ (23,698) Net losses on trading securities sold or matured during the period — (1,940) (425) (5,744) Net losses on trading securities $ (252) $ (14,599) $ (887) $ (29,442)
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]		Table 3.3 - Available-for-Sale Securities by Major Security Type (dollars in thousands) June 30, 2022 Amounts Recorded in Accumulated Other Comprehensive Income Amortized Cost (1) Unrealized Unrealized Fair U.S. Treasury obligations $ 5,913,640 $ 610 $ (24,637) $ 5,889,613 State housing-finance-agency obligations (HFA securities) 62,470 — (1,937) 60,533 Supranational institutions 375,108 12 (5,873) 369,247 U.S. government-owned corporations 274,680 — (25,501) 249,179 Government-sponsored enterprises (GSE) 112,367 — (5,861) 106,506 6,738,265 622 (63,809) 6,675,078 Mortgage-backed securities (MBS) U.S. government guaranteed – single-family 19,625 4 (1,658) 17,971 U.S. government guaranteed – multifamily 536,937 — (18,325) 518,612 GSE – single-family 923,641 649 (40,866) 883,424 GSE – multifamily 5,512,180 18,737 (129,375) 5,401,542 6,992,383 19,390 (190,224) 6,821,549 Total $ 13,730,648 $ 20,012 $ (254,033) $ 13,496,627 December 31, 2021 Amounts Recorded in Accumulated Other Comprehensive Income Amortized Cost (1) Unrealized Unrealized Fair U.S. Treasury obligations $ 5,081,536 $ 3,380 $ (370) $ 5,084,546 HFA securities 63,330 2 (1,067) 62,265 Supranational institutions 409,337 96 (5,668) 403,765 U.S. government-owned corporations 325,567 — (18,703) 306,864 GSE 130,143 — (3,671) 126,472 6,009,913 3,478 (29,479) 5,983,912 MBS U.S. government guaranteed – single-family 21,435 100 — 21,535 U.S. government guaranteed – multifamily 541,238 219 (52) 541,405 GSE – single-family 1,093,890 9,945 (121) 1,103,714 GSE – multifamily 5,171,498 99,119 (25,196) 5,245,421 6,828,061 109,383 (25,369) 6,912,075 Total $ 12,837,974 $ 112,861 $ (54,848) $ 12,895,987 _______________________ (1) Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, collection of cash, and fair-value hedge accounting adjustments. Amortized cost excludes accrued interest receivable of $37.1 million and $31.6 million at June 30, 2022, and December 31, 2021, respectively.
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]		Table 3.4 - Available-for-Sale Securities in a Continuous Unrealized Loss Position (dollars in thousands) June 30, 2022 Continuous Unrealized Loss Less than 12 Months Continuous Unrealized Loss 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury obligations $ 4,768,902 $ (19,582) $ 878,735 $ (5,055) $ 5,647,637 $ (24,637) HFA securities 11,315 (35) 49,218 (1,902) 60,533 (1,937) Supranational institutions — — 355,775 (5,873) 355,775 (5,873) U.S. government-owned corporations — — 249,179 (25,501) 249,179 (25,501) GSE — — 106,505 (5,861) 106,505 (5,861) 4,780,217 (19,617) 1,639,412 (44,192) 6,419,629 (63,809) MBS U.S. government guaranteed – single-family 17,220 (1,658) — — 17,220 (1,658) U.S. government guaranteed – multifamily 518,612 (18,325) — — 518,612 (18,325) GSE – single-family 739,239 (32,937) 78,231 (7,929) 817,470 (40,866) GSE – multifamily 4,739,498 (121,950) 198,174 (7,425) 4,937,672 (129,375) 6,014,569 (174,870) 276,405 (15,354) 6,290,974 (190,224) Total $ 10,794,786 $ (194,487) $ 1,915,817 $ (59,546) $ 12,710,603 $ (254,033) December 31, 2021 Continuous Unrealized Loss Less than 12 Months Continuous Unrealized Loss 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury obligations $ 1,212,443 $ (370) $ — $ — $ 1,212,443 $ (370) HFA securities — — 50,053 (1,067) 50,053 (1,067) Supranational institutions — — 389,180 (5,668) 389,180 (5,668) U.S. government-owned corporations — — 306,864 (18,703) 306,864 (18,703) GSE — — 126,472 (3,671) 126,472 (3,671) 1,212,443 (370) 872,569 (29,109) 2,085,012 (29,479) MBS U.S. government guaranteed – multifamily 187,437 (52) — — 187,437 (52) GSE – single-family 93,020 (121) — — 93,020 (121) GSE – multifamily 1,507,051 (25,196) — — 1,507,051 (25,196) 1,787,508 (25,369) — — 1,787,508 (25,369) Total $ 2,999,951 $ (25,739) $ 872,569 $ (29,109) $ 3,872,520 $ (54,848)
Investments Classified by Contractual Maturity Date [Table Text Block]		Table 3.5 - Available-for-Sale Securities by Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Year of Maturity Amortized Fair Amortized Fair Due in one year or less $ 27,000 $ 26,711 $ 27,000 $ 26,780 Due after one year through five years 2,981,336 2,970,217 1,898,894 1,898,308 Due after five years through 10 years 3,384,900 3,364,172 3,674,762 3,671,798 Due after 10 years 345,029 313,978 409,257 387,026 6,738,265 6,675,078 6,009,913 5,983,912 MBS (1) 6,992,383 6,821,549 6,828,061 6,912,075 Total $ 13,730,648 $ 13,496,627 $ 12,837,974 $ 12,895,987 _______________________ (1) MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers of the underlying loans may have the right to call or prepay obligations with or without call or prepayment fees.
Debt Securities, Held-to-maturity [Table Text Block]		Table 3.6 - Held-to-Maturity Securities by Major Security Type (dollars in thousands) June 30, 2022 Amortized Cost (1) Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Fair Value MBS U.S. government guaranteed – single-family $ 3,914 $ 59 $ — $ 3,973 GSE – single-family 109,783 1,152 (392) 110,543 Total $ 113,697 $ 1,211 $ (392) $ 114,516 December 31, 2021 Amortized Cost (1) Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Fair Value MBS U.S. government guaranteed – single-family $ 4,320 $ 88 $ — $ 4,408 GSE – single-family 141,172 2,605 (117) 143,660 Total $ 145,492 $ 2,693 $ (117) $ 148,068 _______________________ (1) Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion, amortization, and collection of cash. Amortized cost excludes accrued interest receivable of $214 thousand and $200 thousand at June 30, 2022, and December 31, 2021, respectively.
Realized Gain (Loss) on Investments [Table Text Block]	Table 3.7 - Proceeds and Gains (Losses) from Sales of Investment Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Available-for-Sale Securities Proceeds from sale $ — $ — $ 142,733 $ — Amortized cost — — 142,735 — Gross realized gains from sale — — 124 — Gross realized losses from sale — — (126) — Realized net loss from sale $ — $ — $ (2) $ — Held-to-Maturity Securities (1) Proceeds from sale $ — $ — $ 10,405 $ — Carrying value — — 10,385 — Gross realized gains from sale — — 22 — Gross realized losses from sale — — (2) — Realized net gain from sale $ — $ — $ 20 $ — _______________________ (1)

Advances (Tables)

Advances (Tables)	6 Months Ended
	Jun. 30, 2022
Advances [Abstract]
Advances [Table Text Block]	Table 4.1 - Advances Outstanding by Year of Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Amount Weighted Amount Weighted Overdrawn demand-deposit accounts $ 126 1.90 % $ 64 0.60 % Due in one year or less 15,572,853 1.55 5,064,776 0.76 Due after one year through two years 9,536,392 1.78 1,354,297 2.26 Due after two years through three years 1,152,769 1.74 1,541,076 1.64 Due after three years through four years 1,352,529 1.50 2,173,238 1.43 Due after four years through five years 1,372,914 1.81 1,310,971 1.07 Due after five years through fifteen years 1,457,711 2.19 871,692 2.11 Thereafter 32,564 1.28 31,591 1.33 Total par value 30,477,858 1.67 % 12,347,705 1.28 % Discounts (33,800) (34,926) Fair value of bifurcated derivatives (1) 1,580 11,890 Hedging adjustments (127,152) 15,351 Total (2) $ 30,318,486 $ 12,340,020 _________________________ (1) At June 30, 2022, and December 31, 2021, we had certain advances with embedded features that met the requirements to be separated from the host contract and designated as stand-alone derivatives. (2) Excludes accrued interest receivable of $32.2 million and $16.3 million at June 30, 2022, and December 31, 2021, respectively. Table 4.2 - Advances Outstanding by Year of Contractual Maturity or Next Call Date (dollars in thousands) June 30, 2022 December 31, 2021 Overdrawn demand-deposit accounts $ 126 $ 64 Due in one year or less 24,926,478 6,116,251 Due after one year through two years 1,231,392 1,354,297 Due after two years through three years 1,062,994 1,249,001 Due after three years through four years 1,316,029 2,106,238 Due after four years through five years 455,164 632,271 Due after five years through fifteen years 1,453,111 857,992 Thereafter 32,564 31,591 Total par value $ 30,477,858 $ 12,347,705 Table 4.3 - Advances Outstanding by Year of Contractual Maturity or Next Put Date (dollars in thousands) June 30, 2022 December 31, 2021 Overdrawn demand-deposit accounts $ 126 $ 64 Due in one year or less 15,881,753 6,088,201 Due after one year through two years 9,307,992 908,797 Due after two years through three years 1,141,769 1,497,076 Due after three years through four years 1,341,029 1,709,313 Due after four years through five years 1,358,914 1,277,471 Due after five years through fifteen years 1,413,711 835,192 Thereafter 32,564 31,591 Total par value $ 30,477,858 $ 12,347,705 Table 4.4 - Advances by Current Interest Rate Terms (dollars in thousands) June 30, 2022 December 31, 2021 Fixed-rate $ 16,925,337 $ 9,998,766 Variable-rate 13,552,521 2,348,939 Total par value $ 30,477,858 $ 12,347,705 Table 4.5 - Advances Prepayment Fees (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Prepayment fees received from borrowers $ 772 $ 4,728 $ 1,695 $ 14,145 Hedging fair-value adjustments on prepaid advances 1,271 (479) 1,280 (936) Net discounts (premiums) associated with prepaid advances 321 (17) 303 (1,244) Advance prepayment fees recognized in income, net $ 2,364 $ 4,232 $ 3,278 $ 11,965

Mortgage Loans Held for Portf_2

Mortgage Loans Held for Portfolio (Tables)	6 Months Ended
	Jun. 30, 2022
Receivables [Abstract]
Mortgage Loans Held for Portfolio [Table Text Block]	Table 5.1 - Mortgage Loans Held for Portfolio (dollars in thousands) June 30, 2022 December 31, 2021 Real estate Fixed-rate 15-year single-family mortgages $ 247,499 $ 278,393 Fixed-rate 20- and 30-year single-family mortgages 2,608,527 2,793,682 Premiums 43,274 48,043 Discounts (1,707) (671) Deferred derivative gains, net 1,280 2,412 Total mortgage loans held for portfolio (1) 2,898,873 3,121,859 Less: allowance for credit losses (1,500) (1,700) Total mortgage loans, net of allowance for credit losses $ 2,897,373 $ 3,120,159 ________________________ (1) Excludes accrued interest receivable of $14.7 million and $15.7 million at June 30, 2022, and December 31, 2021, respectively. Table 5.2 - Mortgage Loans Held for Portfolio by Collateral/Guarantee Type (dollars in thousands) June 30, 2022 December 31, 2021 Conventional mortgage loans $ 2,682,484 $ 2,880,354 Government mortgage loans 173,542 191,721 Total par value $ 2,856,026 $ 3,072,075
Financing Receivable Credit Quality Indicators	Table 5.3 - Credit Quality Indicator for Conventional Mortgage Loans (dollars in thousands) June 30, 2022 Year of Origination Payment Status at Amortized Cost (1) Prior to 2018 2018 to 2022 Total Past due 30-59 days delinquent $ 7,149 $ 4,069 $ 11,218 Past due 60-89 days delinquent 3,099 2,602 5,701 Past due 90 days or more delinquent 9,838 6,754 16,592 Total past due 20,086 13,425 33,511 Total current loans 1,253,021 1,435,500 2,688,521 Total conventional mortgage loans $ 1,273,107 $ 1,448,925 $ 2,722,032 December 31, 2021 Year of Origination Payment Status at Amortized Cost (1) Prior to 2017 2017 to 2021 Total Past due 30-59 days delinquent $ 7,719 $ 8,053 $ 15,772 Past due 60-89 days delinquent 3,312 2,660 5,972 Past due 90 days or more delinquent 11,932 9,196 21,128 Total past due 22,963 19,909 42,872 Total current loans 1,153,115 1,730,438 2,883,553 Total conventional mortgage loans $ 1,176,078 $ 1,750,347 $ 2,926,425 _________________________
Amortized Cost/Recorded Investment in Delinquent Mortgage Loans [Table Text Block]	Table 5.4 - Other Delinquency Statistics of Mortgage Loans (dollars in thousands) June 30, 2022 Amortized Cost in Conventional Mortgage Loans Amortized Cost in Government Mortgage Loans Total In process of foreclosure (1) $ 1,844 $ 878 $ 2,722 Serious delinquency rate (2) 0.62 % 1.68 % 0.68 % Past due 90 days or more still accruing interest $ — $ 2,966 $ 2,966 Loans on nonaccrual status (3) $ 16,821 $ — $ 16,821 December 31, 2021 Amortized Cost in Conventional Mortgage Loans Amortized Cost in Government Mortgage Loans Total In process of foreclosure (1) $ 786 $ 935 $ 1,721 Serious delinquency rate (2) 0.74 % 2.24 % 0.83 % Past due 90 days or more still accruing interest $ — $ 4,383 $ 4,383 Loans on nonaccrual status (3) $ 21,529 $ — $ 21,529 _______________________ (1) Includes loans where the decision of foreclosure or a similar alternative such as the pursuit of a deed-in-lieu of foreclosure has been reported. (2) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the recorded investment in the total loan portfolio class.
Rollforward of Allowance for Credit Losses on Mortgage Loans [Table Text Block]	Table 5.5 presents a roll forward of the allowance for credit losses on conventional mortgage loans for the three and six months ended June 30, 2022, and 2021. Table 5.5 - Allowance for Credit Losses on Conventional Mortgage Loans (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Allowance for credit losses (1) Balance, beginning of period $ 1,600 $ 1,900 $ 1,700 $ 3,100 (Charge-offs) recoveries (1) 26 (1) 52 (Reduction of) provision for credit losses (99) 199 (199) (1,027) Balance, end of period $ 1,500 $ 2,125 $ 1,500 $ 2,125 _________________________ (1) These amounts exclude government mortgage loans because we make no allowance for credit losses based on our investments in government mortgage loans, as discussed below under — Government Mortgage Loans Held for Portfolio.

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivative Instruments [Table Text Block]	Table 6.1 - Fair Value of Derivative Instruments (dollars in thousands) June 30, 2022 December 31, 2021 Notional Derivative Derivative Notional Derivative Derivative Derivatives designated as hedging instruments Interest-rate swaps $ 35,907,900 $ 3,496 $ (1,040,253) $ 26,589,956 $ 362 $ (163,457) Forward-start interest-rate swaps 1,391,000 — (3,923) 1,391,000 48 (428) Total derivatives designated as hedging instruments 37,298,900 3,496 (1,044,176) 27,980,956 410 (163,885) Derivatives not designated as hedging instruments Interest-rate swaps 329,800 — (2,689) 900,425 3,440 (13,663) CO bond firm commitments 20,000 28 — 55,000 54 (30) Mortgage-delivery commitments (1) 6,864 108 — 3,164 68 — Total derivatives not designated as hedging instruments 356,664 136 (2,689) 958,589 3,562 (13,693) Total notional amount of derivatives $ 37,655,564 $ 28,939,545 Total derivatives before netting and collateral adjustments 3,632 (1,046,865) 3,972 (177,578) Netting adjustments and cash collateral, including related accrued interest (2) 385,607 1,046,865 374,560 138,634 Derivative assets and derivative liabilities $ 389,239 $ — $ 378,532 $ (38,944) _______________________ (1) Mortgage-delivery commitments are classified as derivatives with changes in fair value recorded in other income. (2)
Net Gains (Losses) on Derivatives and Hedging Activities [Table Text Block]	Tables 6.2 presents the net gains (losses) on qualifying fair-value hedging relationships. Gains (losses) on derivatives include unrealized changes in fair value as well as net interest settlements. Table 6.2 - Net Gains (Losses) on Fair Value Hedging Relationships (dollars in thousands) For the Three Months Ended June 30, 2022 Advances Available-for-sale Securities CO Bonds Total interest income (expense) in the statements of operations $ 69,277 $ 62,405 $ (78,242) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 48,392 $ 350,986 $ (238,288) Hedged items (47,489) (334,705) 238,516 Net changes in fair value before price alignment interest 903 16,281 228 Price alignment interest (1) (185) (949) 31 Net interest settlements on derivatives (2)(3) (5,205) (21,256) 15,049 Net (losses) gains on qualifying hedging relationships (4,487) (5,924) 15,308 Amortization/accretion of discontinued hedging relationships (273) — 510 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (4,760) $ (5,924) $ 15,818 For the Three Months Ended June 30, 2021 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 43,230 $ 10,841 $ (53,684) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ (964) $ (128,985) $ 36,662 Hedged items 718 124,871 (36,596) Net changes in fair value before price alignment interest (246) (4,114) 66 Price alignment interest (1) 1 16 — Net interest settlements on derivatives (2)(3) (16,042) (29,847) 16,000 Net (losses) gains on qualifying hedging relationships (16,287) (33,945) 16,066 Amortization/accretion of discontinued hedging relationships (705) — 749 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (16,992) $ (33,945) $ 16,815 For the Six Months Ended June 30, 2022 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 103,270 $ 107,138 $ (122,142) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 144,241 $ 987,668 $ (807,521) Hedged items (141,985) (957,045) 808,226 Net changes in fair value before price alignment interest 2,256 30,623 705 Price alignment interest (1) (207) (1,000) 33 Net interest settlements on derivatives (2)(3) (15,131) (58,647) 41,840 Net (losses) gains on qualifying hedging relationships (13,082) (29,024) 42,578 Amortization/accretion of discontinued hedging relationships (536) — 1,012 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (13,618) $ (29,024) $ 43,590 For the Six Months Ended June 30, 2021 Advances Available-for-sale Securities CO Bonds Total income (expense) in the statements of operations $ 92,782 $ 33,836 $ (115,285) Gains (losses) on hedging relationships Changes in fair value: Derivatives $ 40,897 $ 127,518 $ (67,857) Hedged items (40,140) (124,068) 68,159 Net changes in fair value before price alignment interest 757 3,450 302 Price alignment interest (1) 16 65 (3) Net interest settlements on derivatives (2)(3) (31,867) (51,784) 23,470 Net (losses) gains on qualifying hedging relationships (31,094) (48,269) 23,769 Amortization/accretion of discontinued hedging relationships (1,404) — 1,661 Net (losses) gains on derivatives and hedging activities recorded in net interest income $ (32,498) $ (48,269) $ 25,430 _______________________ (1) Relates to derivatives for which variation margin payments are characterized as daily settled contracts. (2) Represents interest income/expense on derivatives in qualifying fair-value hedging relationships. Net interest settlements on derivatives that are not in qualifying fair-value hedging relationships are reported in other income. (3) Excludes the interest income/expense of the respective hedged items recorded in net interest income. Tables 6.3 presents the net gains (losses) on qualifying cash flow hedging relationships. Table 6.3 - Net Gains (Losses) on Cash Flow Hedging Relationships (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Forward-start interest rate swaps - CO Bonds Losses reclassified from accumulated other comprehensive loss into interest expense $ (1,455) $ (1,506) $ (2,893) $ (3,063) Gains recognized in other comprehensive income 22,182 (14,224) 44,240 (9,038)
Gains (Losses) By Type of Hedged Item [Table Text Block]	Table 6.4 - Cumulative Basis Adjustments for Fair-Value Hedges (dollars in thousands) June 30, 2022 Line Item in Statement of Condition Amortized Cost of Hedged Asset/ Liability (1) Basis Adjustments for Active Hedging Relationships Included in Amortized Cost Basis Adjustments for Discontinued Hedging Relationships Included in Amortized Cost Cumulative Amount of Fair Value Hedging Basis Adjustments Advances $ 2,487,643 $ (135,508) $ 8,356 $ (127,152) Available-for-sale securities 11,721,006 (746,699) — (746,699) Consolidated obligation bonds 19,742,699 (983,854) 30,583 (953,271) _______________________ (1) Includes only the amortized cost of hedged items in fair-value hedging relationships.
Derivatives Not Designated as Hedging Instruments [Table Text Block]	Table 6.5 - Net Gains and Losses on Derivatives and Hedging Activities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Derivatives not designated as hedging instruments: Economic hedges: Interest-rate swaps $ 525 $ 193 $ 4 $ 7 CO Bond firm commitments (521) — — 19 Mortgage-delivery commitments (118) 253 (791) (433) Total net (losses) gains related to derivatives not designated as hedging instruments (114) 446 (787) (407) Other (1) — 1 — 6 Net (losses) gains on derivatives and hedging activities $ (114) $ 447 $ (787) $ (401) ______________________ (1) Consists of price alignment amount on derivatives for which variation margin is characterized as a daily settlement amount.
Impact of Variation Margin for Cleared Derivatives on the Statement of Cash Flows	Table 6.6 - Impact of Variation Margin for Cleared Derivatives on the Statement of Cash Flows (dollars in thousands) Increase on Cash Flow Statement For the Six Months Ended June 30, 2022 2021 Operating activity - net change in derivatives and hedging activities $ 1,142,853 $ 100,548 Financing activity - net payments on derivatives with a financing element 107,216 42,215 Total variation margin received on cleared derivatives $ 1,250,069 $ 142,763
Post-haircut Value of Incremental Collateral Based on Incremental Credit Rating Downgrades [Table Text Block]	Table 6.7 sets forth the post-haircut value of incremental collateral that certain uncleared derivatives counterparties could have required us to deliver based on incremental credit rating downgrades at June 30, 2022. Table 6.7 - Post Haircut Value of Incremental Collateral to be Delivered as of June 30, 2022 (dollars in thousands) Ratings Downgrade (1) From To Incremental Collateral AA+ AA or AA- $ — AA- A+, A or A- — A- below A- 43,803 _______________________ (1) Ratings are expressed in this table according to S&P's conventions but include the equivalent of such rating by Moody's. If there is a split rating, the lower rating is used.
Offsetting Assets [Table Text Block]	Table 6.8 presents separately the fair value of derivatives that are subject to netting due to a legal right of offset based on the terms of our master netting arrangements or similar agreements as of June 30, 2022, and December 31, 2021, and the fair value of derivatives that are not subject to such netting. Derivatives subject to netting include any related cash collateral received from or pledged to counterparties. Table 6.8 - Netting of Derivative Assets and Derivative Liabilities (dollars in thousands) June 30, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset Net Amount Derivative Assets Interest-rate swaps Uncleared $ 1,810 $ 59,771 $ 61,581 $ — $ 61,581 Cleared 1,686 325,836 327,522 — 327,522 CO bond firm commitments $ 28 28 28 Mortgage delivery commitments 108 108 108 Total $ 389,239 $ 389,239 Derivative Liabilities Interest-rate swaps Uncleared $ (943,323) $ 943,323 $ — $ — $ — Cleared (103,542) 103,542 — — — Total $ — $ — December 31, 2021 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset (2) Net Amount Derivative Assets Interest-rate swaps Uncleared $ 327 $ (103) $ 224 $ — $ 224 Cleared 3,523 374,663 378,186 — 378,186 CO bond firm commitments $ 54 54 54 Mortgage delivery commitment 68 68 68 Total $ 378,532 $ 378,532 Derivative Liabilities Interest-rate swaps Uncleared $ (171,374) $ 132,460 $ (38,914) $ 28,374 $ (10,540) Cleared (6,175) 6,175 — — — CO bond firm commitments $ (30) (30) (30) Total $ (38,944) $ (10,570) _______________________ (1) Includes gross amounts of netting adjustments and cash collateral.
Offsetting Liabilities [Table Text Block]	Table 6.8 presents separately the fair value of derivatives that are subject to netting due to a legal right of offset based on the terms of our master netting arrangements or similar agreements as of June 30, 2022, and December 31, 2021, and the fair value of derivatives that are not subject to such netting. Derivatives subject to netting include any related cash collateral received from or pledged to counterparties. Table 6.8 - Netting of Derivative Assets and Derivative Liabilities (dollars in thousands) June 30, 2022 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset Net Amount Derivative Assets Interest-rate swaps Uncleared $ 1,810 $ 59,771 $ 61,581 $ — $ 61,581 Cleared 1,686 325,836 327,522 — 327,522 CO bond firm commitments $ 28 28 28 Mortgage delivery commitments 108 108 108 Total $ 389,239 $ 389,239 Derivative Liabilities Interest-rate swaps Uncleared $ (943,323) $ 943,323 $ — $ — $ — Cleared (103,542) 103,542 — — — Total $ — $ — December 31, 2021 Derivative Instruments Meeting Netting Requirements Gross Recognized Amount Gross Amounts of Netting Adjustments (1) Derivative Instruments Not Meeting Netting Requirements Total Derivative Assets and Total Derivative Liabilities Non-cash Collateral (Received) or Pledged Not Offset (2) Net Amount Derivative Assets Interest-rate swaps Uncleared $ 327 $ (103) $ 224 $ — $ 224 Cleared 3,523 374,663 378,186 — 378,186 CO bond firm commitments $ 54 54 54 Mortgage delivery commitment 68 68 68 Total $ 378,532 $ 378,532 Derivative Liabilities Interest-rate swaps Uncleared $ (171,374) $ 132,460 $ (38,914) $ 28,374 $ (10,540) Cleared (6,175) 6,175 — — — CO bond firm commitments $ (30) (30) (30) Total $ (38,944) $ (10,570) _______________________ (1) Includes gross amounts of netting adjustments and cash collateral.

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2022
Deposits [Abstract]
Interest-bearing and Non-interest-bearing Deposits [Table Text Block]	Table 7.1 - Deposits (dollars in thousands) June 30, 2022 December 31, 2021 Interest-bearing Demand and overnight $ 1,033,389 $ 831,009 Other 1,846 1,998 Noninterest-bearing Other 31,224 51,025 Total deposits $ 1,066,459 $ 884,032

Consolidated Obligations (Table

Consolidated Obligations (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
CO Bonds by Year of Contractual Maturity [Table Text Block]	Table 8.1 - CO Bonds Outstanding by Contractual Maturity (dollars in thousands) June 30, 2022 December 31, 2021 Amount Weighted Average Rate (1) Amount Weighted Average Rate (1) Due in one year or less $ 11,992,260 1.72 % $ 6,919,220 0.79 % Due after one year through two years 3,275,075 1.92 3,069,155 1.18 Due after two years through three years 4,962,995 1.28 3,514,735 1.09 Due after three years through four years 5,080,415 0.88 3,029,600 0.88 Due after four years through five years 4,135,320 1.32 5,735,605 0.91 Thereafter 4,206,865 2.00 4,456,865 1.91 Total par value 33,652,930 1.53 % 26,725,180 1.10 % Premiums 30,368 40,251 Discounts (8,422) (9,011) Hedging adjustments (953,271) (143,388) Total $ 32,721,605 $ 26,613,032 _______________________ (1) The CO bonds' weighted-average rate excludes concession fees. Table 8.3 - CO Bonds Outstanding by Contractual Maturity or Next Call Date (dollars in thousands) June 30, 2022 December 31, 2021 Due in one year or less $ 27,530,010 $ 19,150,220 Due after one year through two years 1,762,325 3,461,155 Due after two years through three years 1,221,995 1,044,735 Due after three years through four years 1,669,415 1,544,600 Due after four years through five years 499,320 539,605 Thereafter 969,865 984,865 Total par value $ 33,652,930 $ 26,725,180
CO Bonds Long-term Debt Instruments [Table Text Block]	Table 8.2 - CO Bonds Outstanding by Call Feature (dollars in thousands) June 30, 2022 December 31, 2021 Noncallable and nonputable $ 12,961,180 $ 13,924,180 Callable 20,691,750 12,801,000 Total par value $ 33,652,930 $ 26,725,180 Table 8.4 - CO Bonds by Interest Rate-Payment Type (dollars in thousands) June 30, 2022 December 31, 2021 Fixed-rate $ 22,652,180 $ 17,707,180 Simple variable-rate 5,507,000 4,803,000 Step-up (1) 5,493,750 4,215,000 Total par value $ 33,652,930 $ 26,725,180 _______________________ (1) Step-up bonds pay interest at increasing fixed rates for specified intervals over the life of the CO bond and can be called at our option on the step-up dates.
CO Discount Notes [Table Text Block]	Outstanding CO discount notes for which we were primarily liable, all of which are due within one year, were as follows: Table 8.5 - CO Discount Notes Outstanding (dollars in thousands) Book Value Par Value Weighted Average Rate (1) June 30, 2022 $ 25,096,230 $ 25,119,223 1.36 % December 31, 2021 $ 2,275,320 $ 2,275,519 0.05 % _______________________ (1) CO discount notes' weighted-average rate represents a yield to maturity excluding concession fees.

Affordable Housing Program (Tab

Affordable Housing Program (Tables)	6 Months Ended
	Jun. 30, 2022
Affordable Housing Program AHP [Abstract]
Roll-forward of the AHP Liability[Table Text Block]	Table 9.1 - AHP Liability (dollars in thousands) For the Six Months Ended For the Year Ended June 30, 2022 December 31, 2021 Balance at beginning of year $ 70,503 $ 78,640 AHP expense for the period 7,667 7,739 AHP voluntary contribution 13,980 4,761 AHP direct grant disbursements (6,708) (17,980) AHP subsidy for AHP advance disbursements (1,291) (5,806) Return of previously disbursed grants and subsidies 935 3,149 Balance at end of period $ 85,086 $ 70,503

Capital (Tables)

Capital (Tables)	6 Months Ended
	Jun. 30, 2022
Banking Regulation, Total Capital [Abstract]
Compliance with Regulatory Capital Requirements [Table Text Block]	Table 10.1 - Regulatory Capital Requirements (dollars in thousands) Risk-Based Capital Requirements June 30, December 31, Permanent capital Class B capital stock $ 1,557,243 $ 953,638 Mandatorily redeemable capital stock 10,703 13,562 Retained earnings 1,607,178 1,548,406 Total permanent capital $ 3,175,124 $ 2,515,606 Risk-based capital requirement Credit-risk capital $ 111,551 $ 84,301 Market-risk capital 224,681 213,467 Operations-risk capital 100,870 89,330 Total risk-based capital requirement $ 437,102 $ 387,098 Permanent capital in excess of risk-based capital requirement $ 2,738,022 $ 2,128,508 June 30, 2022 December 31, 2021 Required Actual Required Actual Capital Ratio Risk-based capital $ 437,102 $ 3,175,124 $ 387,098 $ 2,515,606 Total regulatory capital 2,482,560 3,175,124 1,301,812 2,515,606 Total capital-to-asset ratio 4.0 % 5.1 % 4.0 % 7.7 % Leverage Ratio Leverage capital $ 3,103,200 $ 4,762,686 $ 1,627,265 $ 3,773,409 Leverage capital-to-assets ratio 5.0 % 7.7 % 5.0 % 11.6 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2022
AOCI Attributable to Parent [Abstract]
Schedule of Accumulated Other Comprehensive Loss [Table Text Block]	Accumulated Other Comprehensive Income (Loss) Table 11.1 - Accumulated Other Comprehensive Income (Loss) (dollars in thousands) Net Unrealized Gain (Loss) on Available-for-sale Securities Net Unrealized (Loss) Gain Relating to Hedging Activities Pension and Postretirement Benefits Total Balance, March 31, 2021 $ 46,649 $ (17,622) $ (7,804) $ 21,223 Other comprehensive (loss) income before reclassifications: Net unrealized gains (losses) 37,811 (14,224) — 23,587 Net actuarial gain — — 1,292 1,292 Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 1,506 — 1,506 Amortization - pension and postretirement benefits (2) — — 37 37 Other comprehensive income (loss) 37,811 (12,718) 1,329 26,422 Balance June 30, 2021 $ 84,460 $ (30,340) $ (6,475) $ 47,645 Balance, March 31, 2022 $ (83,273) $ (2,795) $ (2,732) $ (88,800) Other comprehensive (loss) income before reclassifications: Net unrealized (losses) gains (150,748) 22,182 — (128,566) Net actuarial loss — — (685) (685) Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 1,455 — 1,455 Amortization - pension and postretirement benefits (2) — — 187 187 Other comprehensive (loss) income (150,748) 23,637 (498) (127,609) Balance, June 30, 2022 $ (234,021) $ 20,842 $ (3,230) $ (216,409) Net Unrealized Gain (Loss) on Available-for-sale Securities Net Unrealized (Loss) Gain Relating to Hedging Activities Pension and Postretirement Benefits Total Balance, December 31, 2020 $ 48,568 $ (24,365) $ (8,064) $ 16,139 Other comprehensive income (loss) before reclassifications: Net unrealized gains (losses) 35,892 (9,038) — 26,854 Net actuarial gain — — 1,292 1,292 Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 3,063 — 3,063 Amortization - pension and postretirement benefits (2) — — 297 297 Other comprehensive income (loss) 35,892 (5,975) 1,589 31,506 Balance, June 30, 2021 $ 84,460 $ (30,340) $ (6,475) $ 47,645 Balance, December 31, 2021 $ 58,013 $ (26,291) $ (2,755) $ 28,967 Other comprehensive (loss) income before reclassifications: Net unrealized (losses) gains (292,036) 44,240 — (247,796) Net actuarial loss — — (685) (685) Reclassifications from other comprehensive income to net income Amortization - hedging activities (1) — 2,893 — 2,893 Amortization - pension and postretirement benefits (2) — — 210 210 Reclassification of realized net loss included in net income (3) 2 — — 2 Other comprehensive (loss) income (292,034) 47,133 (475) (245,376) Balance, June 30, 2022 $ (234,021) $ 20,842 $ (3,230) $ (216,409) _______________________ (1) Recorded in CO bond interest expense. (2) Recorded in other expenses in the statement of operations. (3) Recorded in other income (loss) in the statement of operations.

Fair Values (Tables)

Fair Values (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments [Table Text Block]	Table 12.1 presents the carrying value, fair value, and fair value hierarchy of our financial assets and liabilities at June 30, 2022, and December 31, 2021. We record trading securities, available-for-sale securities, derivative assets, derivative liabilities, and certain other assets at fair value on a recurring basis and certain mortgage loans, and certain other assets at fair value on a non-recurring basis. We record 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 non-recurring basis. Table 12.1 - Fair Value Summary (dollars in thousands) June 30, 2022 Carrying Total Fair Value Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Financial instruments Assets: Cash and due from banks $ 65,965 $ 65,965 $ 65,965 $ — $ — $ — Interest-bearing deposits 395,230 395,230 395,230 — — — Securities purchased under agreements to resell 11,250,000 11,249,945 — 11,249,945 — — Federal funds sold 2,998,000 2,997,988 — 2,997,988 — — Trading securities (1) 980 980 — 980 — — Available-for-sale securities (1) 13,496,627 13,496,627 — 13,436,094 60,533 — Held-to-maturity securities 113,697 114,516 — 114,516 — — Advances 30,318,486 30,213,245 — 30,213,245 — — Mortgage loans, net 2,897,373 2,734,981 — 2,711,151 23,830 — Accrued interest receivable 85,367 85,367 — 85,367 — — Derivative assets (1) 389,239 389,239 — 3,632 — 385,607 Other assets (1) 30,065 30,065 13,308 16,757 — — Liabilities: Deposits (1,066,459) (1,066,426) — (1,066,426) — — COs: Bonds (32,721,605) (32,435,784) — (32,435,784) — — Discount notes (25,096,230) (25,093,489) — (25,093,489) — — Mandatorily redeemable capital stock (10,703) (10,703) (10,703) — — — Accrued interest payable (86,722) (86,722) — (86,722) — — Derivative liabilities (1) — — — (1,046,865) — 1,046,865 Other: Commitments to extend credit for advances — (13,526) — (13,526) — — Standby letters of credit (1,366) (1,366) — (1,366) — — December 31, 2021 Carrying Total Fair Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (2) Financial instruments Assets: Cash and due from banks $ 204,993 $ 204,993 $ 204,993 $ — $ — $ — Interest-bearing deposits 85,153 85,153 85,153 — — — Securities purchased under agreements to resell 800,000 799,998 — 799,998 — — Federal funds sold 1,944,000 1,943,998 — 1,943,998 — — Trading securities (1) 501,867 501,867 — 501,867 — — Available-for-sale securities (1) 12,895,987 12,895,987 — 12,833,722 62,265 — Held-to-maturity securities 145,492 148,068 — 148,068 — — Advances 12,340,020 12,440,985 — 12,440,985 — — Mortgage loans, net 3,120,159 3,234,829 — 3,204,222 30,607 — Accrued interest receivable 68,360 68,360 — 68,360 — — Derivative assets (1) 378,532 378,532 — 3,972 — 374,560 Other assets (1) 32,570 32,570 13,937 18,633 — — Liabilities: Deposits (884,032) (884,029) — (884,029) — — COs: Bonds (26,613,032) (26,882,036) — (26,882,036) — — Discount notes (2,275,320) (2,275,276) — (2,275,276) — — Mandatorily redeemable capital stock (13,562) (13,562) (13,562) — — — Accrued interest payable (60,968) (60,968) — (60,968) — — Derivative liabilities (1) (38,944) (38,944) — (177,578) — 138,634 Other: Commitments to extend credit for advances — (6,196) — (6,196) — — Standby letters of credit (1,146) (1,146) — (1,146) — — _______________________ (1) Carried at fair value and measured on a recurring basis. (2) These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.
Fair Value Measured on Recurring and Nonrecurring Basis [Table Text Block]	Table 12.2 - Fair Value of Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis (dollars in thousands) June 30, 2022 Level 1 Level 2 Level 3 Netting Adjustments and Cash Collateral (1) Total Assets: Carried at fair value on a recurring basis Trading securities: Corporate bonds $ — $ 980 $ — $ — $ 980 Available-for-sale securities: HFA securities — — 60,533 — 60,533 U.S. Treasury obligations — 5,889,613 — — 5,889,613 Supranational institutions — 369,247 — — 369,247 U.S. government-owned corporations — 249,179 — — 249,179 GSE — 106,506 — — 106,506 U.S. government guaranteed – single-family MBS — 17,971 — — 17,971 U.S. government guaranteed – multifamily MBS — 518,612 — — 518,612 GSE – single-family MBS — 883,424 — — 883,424 GSE – multifamily MBS — 5,401,542 — — 5,401,542 Total available-for-sale securities — 13,436,094 60,533 — 13,496,627 Derivative assets: Interest-rate-exchange agreements — 3,496 — 385,607 389,103 CO Bond firm commitments — 28 — — 28 Mortgage delivery commitments — 108 — — 108 Total derivative assets — 3,632 — 385,607 389,239 Other assets 13,308 16,757 — — 30,065 Total assets carried at fair value on a recurring basis $ 13,308 $ 13,457,463 $ 60,533 $ 385,607 $ 13,916,911 Carried at fair value on a nonrecurring basis (2) Mortgage loans held for portfolio $ — $ — $ 90 $ — $ 90 Total assets carried at fair value on a nonrecurring basis $ — $ — $ 90 $ — $ 90 Liabilities: Carried at fair value on a recurring basis Derivative liabilities Interest-rate-exchange agreements $ — $ (1,046,865) $ — $ 1,046,865 $ — Total liabilities carried at fair value on a recurring basis $ — $ (1,046,865) $ — $ 1,046,865 $ — December 31, 2021 Level 1 Level 2 Level 3 Netting (1) Total Assets: Carried at fair value on a recurring basis Trading securities: Corporate bonds $ — $ 1,442 $ — $ — $ 1,442 U.S. Treasury obligations — 500,425 — — 500,425 Total trading securities — 501,867 — — 501,867 Available-for-sale securities: HFA securities — — 62,265 — 62,265 U.S. Treasury obligations — 5,084,546 — — 5,084,546 Supranational institutions — 403,765 — — 403,765 U.S. government-owned corporations — 306,864 — — 306,864 GSE — 126,472 — — 126,472 U.S. government guaranteed – single-family MBS — 21,535 — — 21,535 U.S. government guaranteed – multifamily MBS — 541,405 — — 541,405 GSE – single-family MBS — 1,103,714 — — 1,103,714 GSE – multifamily MBS — 5,245,421 — — 5,245,421 Total available-for-sale securities — 12,833,722 62,265 — 12,895,987 Derivative assets: Interest-rate-exchange agreements — 3,850 — 374,560 378,410 CO Bond firm commitments — 54 — — 54 Mortgage delivery commitments — 68 — — 68 Total derivative assets — 3,972 — 374,560 378,532 Other assets 13,937 18,633 — — 32,570 Total assets carried at fair value on a recurring basis $ 13,937 $ 13,358,194 $ 62,265 $ 374,560 $ 13,808,956 Carried at fair value on a nonrecurring basis (2) Mortgage loans held for portfolio $ — $ — $ 3,860 $ — $ 3,860 Real-estate owned property (REO) — — 59 — 59 Total assets carried at fair value on a nonrecurring basis $ — $ — $ 3,919 $ — $ 3,919 Liabilities: Carried at fair value on a recurring basis Derivative liabilities Interest-rate-exchange agreements $ — $ (177,548) $ — $ 138,634 $ (38,914) CO Bond firm commitments — (30) — — (30) Total liabilities carried at fair value on a recurring basis $ — $ (177,578) $ — $ 138,634 $ (38,944) _______________________ (1) These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty. (2) We measure certain mortgage loans held for portfolio and REO at fair value on a nonrecurring basis, that is, they are not measured at fair value on an ongoing basis but are subject to fair-value adjustments only in certain circumstances. The fair values presented are as of the date the fair value adjustment was recorded.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Table 12.3 presents a reconciliation of available-for-sale securities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2022 and 2021. Table 12.3 - Roll Forward of Level 3 Available-for-Sale HFA Securities (dollars in thousands) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Balance at beginning of period $ 61,444 $ 107,908 $ 62,265 $ 122,549 Total (losses) gains included in other comprehensive income Net unrealized (losses) gains (51) 1,129 (872) 3,333 Sales, maturities, and settlements Maturities — (21,740) — (38,360) Settlements (860) (1,220) (860) (1,445) Balance at end of period $ 60,533 $ 86,077 $ 60,533 $ 86,077 Total amount of unrealized (losses) gains for the period included in other comprehensive income relating to securities held at period end $ (51) $ (1,132) $ (872) $ 217

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Commitments [Table Text Block]	Table 13.1 - Off-Balance Sheet Commitments (1) (dollars in thousands) June 30, 2022 December 31, 2021 Expire within one year Expire after one year Total Expire within one year Expire after one year Total Standby letters of credit outstanding (2) $ 9,997,436 $ 139,160 $ 10,136,596 $ 5,369,701 $ 132,096 $ 5,501,797 Commitments for unused lines of credit - advances (3) 1,114,335 — 1,114,335 1,095,844 — 1,095,844 Commitments to make additional advances 211,367 48,302 259,669 40,917 66,318 107,235 Commitments to invest in mortgage loans 6,864 — 6,864 3,164 — 3,164 Unsettled CO bonds, at par 445,000 — 445,000 260,000 — 260,000 Unsettled CO discount notes, at par 1,336,070 — 1,336,070 — — — __________________________ (1) We have determined that it is unnecessary to record any liability for credit losses on these agreements. (2) The amount of standby letters of credit outstanding excludes commitments to issue standby letters of credit that expire within one year. At June 30, 2022, and December 31, 2021, these amounts totaled $39.9 million and $16.1 million, respectively. Also excluded are commitments to issue standby letters of credit that expire after one year totaling $125 thousand at December 31, 2021. (3) Commitments for unused line-of-credit advances are generally for periods of up to 12 months. Since many of these commitments are not expected to be drawn upon, the total commitment amount does not necessarily indicate future liquidity requirements.

Transactions with Shareholders

Transactions with Shareholders (Tables)	6 Months Ended
	Jun. 30, 2022
Transactions with Shareholders [Abstract]
Schedule of Transactions with Shareholders, Shareholder Concentrations Balance Sheet	Table 14.1 - Shareholder Concentrations, Balance Sheet (dollars in thousands) Capital Stock Percent Par Percent of Total Par Value Total Accrued Percent of Total June 30, 2022 Citizens Bank, N.A. $ 504,748 32.2 % $ 12,019,143 39.4 % $ 7,275 22.6 %
Schedule of Transactions with Shareholders, Transactions with Directors' Financial Institutions [Table Text Block]	Transactions with Directors' Institutions. We provide, in the ordinary course of business, products and services to members whose officers or directors serve on our board of directors. In accordance with FHFA regulations, transactions with directors' institutions are conducted on the same terms as those with any other member. Table 14.2 - Transactions with Directors' Institutions (dollars in thousands) Capital Stock Percent Par Percent of Total Par Value Total Accrued Percent of Total June 30, 2022 $ 517,080 33.0 % $ 12,191,403 40.0 % $ 7,376 22.9 % December 31, 2021 48,104 5.0 416,542 3.4 466 2.8

Cumulative Effect Adjustment (D

Cumulative Effect Adjustment (Details) $ in Thousands	36 Months Ended
	Mar. 31, 2022 USD ($)
Revision of Prior Period, Error Correction, Adjustment | Available-for-sale Securities [Member]
Cumulative effect adjustment recorded in interest income related to available-for-sale securities	$ 6,200

Investments Trading Securities

Investments Trading Securities by Major Security Type (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Corporate bonds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 980	$ 1,442
US Treasury obligations [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	0	500,425
Other Than MBS [Member]
Debt and Equity Securities, FV-NI [Line Items]
Trading securities	$ 980	$ 501,867

Net Losses on Trading Securitie

Net Losses on Trading Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Securities, Trading, Gain (Loss) [Abstract]
Net losses on trading securities held at period end	$ (252)	$ (12,659)	$ (462)	$ (23,698)
Net losses on trading securities sold or matured during the period	0	(1,940)	(425)	(5,744)
Net losses on trading securities	$ (252)	$ (14,599)	$ (887)	$ (29,442)

Available-for-Sale Securities M

Available-for-Sale Securities Major Security Types (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	$ 13,730,648	$ 12,837,974
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		20,012	112,861
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(254,033)	(54,848)
Available-for-sale securities		13,496,627	12,895,987
Available-for-sale securities - accrued interest receivable		37,100	31,600
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	5,913,640	5,081,536
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		610	3,380
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(24,637)	(370)
Available-for-sale securities		5,889,613	5,084,546
State housing-finance-agency obligations (HFA securities) [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	62,470	63,330
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		0	2
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(1,937)	(1,067)
Available-for-sale securities		60,533	62,265
Supranational institutions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	375,108	409,337
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		12	96
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(5,873)	(5,668)
Available-for-sale securities		369,247	403,765
U.S. government-owned corporations [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	274,680	325,567
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		0	0
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(25,501)	(18,703)
Available-for-sale securities		249,179	306,864
GSE [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	112,367	130,143
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		0	0
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(5,861)	(3,671)
Available-for-sale securities		106,506	126,472
Other Than MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	6,738,265	6,009,913
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		622	3,478
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(63,809)	(29,479)
Available-for-sale securities		6,675,078	5,983,912
U.S. government guaranteed - single-family MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	19,625	21,435
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		4	100
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(1,658)	0
Available-for-sale securities		17,971	21,535
U.S. government guaranteed-multifamily MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	536,937	541,238
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		0	219
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(18,325)	(52)
Available-for-sale securities		518,612	541,405
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	6,992,383	6,828,061
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		19,390	109,383
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(190,224)	(25,369)
Available-for-sale securities		6,821,549	6,912,075
Single Family [Member] | GSE – MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	923,641	1,093,890
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		649	9,945
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(40,866)	(121)
Available-for-sale securities		883,424	1,103,714
GSE - multifamily [Member] | GSE – MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	[1]	5,512,180	5,171,498
Unrealized Gains Amounts Recorded in Accumulated Other Comprehensive Income		18,737	99,119
Unrealized Losses Amounts Recorded in Accumulated Other Comprehensive Income		(129,375)	(25,196)
Available-for-sale securities		$ 5,401,542	$ 5,245,421
[1]Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, collection of cash, and fair-value hedge accounting adjustments. Amortized cost excludes accrued interest receivable of $37.1 million and $31.6 million at June 30, 2022, and December 31, 2021, respectively

Available-for-Sale Securities i

Available-for-Sale Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 10,794,786	$ 2,999,951
Less than 12 Months, Unrealized Losses	(194,487)	(25,739)
12 Months or More, Fair Value	1,915,817	872,569
12 Months or More, Unrealized Losses	(59,546)	(29,109)
Total Fair Value	12,710,603	3,872,520
Total Unrealized Losses	(254,033)	(54,848)
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	4,768,902	1,212,443
Less than 12 Months, Unrealized Losses	(19,582)	(370)
12 Months or More, Fair Value	878,735	0
12 Months or More, Unrealized Losses	(5,055)	0
Total Fair Value	5,647,637	1,212,443
Total Unrealized Losses	(24,637)	(370)
HFA securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	11,315	0
Less than 12 Months, Unrealized Losses	(35)	0
12 Months or More, Fair Value	49,218	50,053
12 Months or More, Unrealized Losses	(1,902)	(1,067)
Total Fair Value	60,533	50,053
Total Unrealized Losses	(1,937)	(1,067)
Supranational institutions [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	355,775	389,180
12 Months or More, Unrealized Losses	(5,873)	(5,668)
Total Fair Value	355,775	389,180
Total Unrealized Losses	(5,873)	(5,668)
U.S. government-owned corporations [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	249,179	306,864
12 Months or More, Unrealized Losses	(25,501)	(18,703)
Total Fair Value	249,179	306,864
Total Unrealized Losses	(25,501)	(18,703)
GSE [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	106,505	126,472
12 Months or More, Unrealized Losses	(5,861)	(3,671)
Total Fair Value	106,505	126,472
Total Unrealized Losses	(5,861)	(3,671)
Other Than MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	4,780,217	1,212,443
Less than 12 Months, Unrealized Losses	(19,617)	(370)
12 Months or More, Fair Value	1,639,412	872,569
12 Months or More, Unrealized Losses	(44,192)	(29,109)
Total Fair Value	6,419,629	2,085,012
Total Unrealized Losses	(63,809)	(29,479)
U.S. government guaranteed - single-family MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	17,220
Less than 12 Months, Unrealized Losses	(1,658)
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total Fair Value	17,220
Total Unrealized Losses	(1,658)
U.S. government guaranteed-multifamily MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	518,612	187,437
Less than 12 Months, Unrealized Losses	(18,325)	(52)
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total Fair Value	518,612	187,437
Total Unrealized Losses	(18,325)	(52)
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	6,014,569	1,787,508
Less than 12 Months, Unrealized Losses	(174,870)	(25,369)
12 Months or More, Fair Value	276,405	0
12 Months or More, Unrealized Losses	(15,354)	0
Total Fair Value	6,290,974	1,787,508
Total Unrealized Losses	(190,224)	(25,369)
GSE - single-family [Member] | GSE – MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	739,239	93,020
Less than 12 Months, Unrealized Losses	(32,937)	(121)
12 Months or More, Fair Value	78,231	0
12 Months or More, Unrealized Losses	(7,929)	0
Total Fair Value	817,470	93,020
Total Unrealized Losses	(40,866)	(121)
GSE - multifamily [Member] | GSE – MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	4,739,498	1,507,051
Less than 12 Months, Unrealized Losses	(121,950)	(25,196)
12 Months or More, Fair Value	198,174	0
12 Months or More, Unrealized Losses	(7,425)	0
Total Fair Value	4,937,672	1,507,051
Total Unrealized Losses	$ (129,375)	$ (25,196)

Available-for-Sale Securities b

Available-for-Sale Securities by Contractual Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		$ 13,730,648	$ 12,837,974
Fair Value		13,496,627	12,895,987
Other Than MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Due in one year or less, amortized cost		27,000	27,000
Due in one year or less, fair value		26,711	26,780
Due after one year through five years, amortized cost		2,981,336	1,898,894
Due after one year through five years, fair value		2,970,217	1,898,308
Due after five years through 10 years, amortized cost		3,384,900	3,674,762
Due after five years through 10 years, fair value		3,364,172	3,671,798
Due after 10 years, amortized cost		345,029	409,257
Due after 10 years, fair value		313,978	387,026
Amortized Cost		6,738,265	6,009,913
Fair Value		6,675,078	5,983,912
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost MBS	[1]	6,992,383	6,828,061
Fair Value MBS	[1]	$ 6,821,549	$ 6,912,075
[1]MBS are not presented by contractual maturity because their expected maturities will likely differ from contractual maturities because borrowers of the underlying loans may have the right to call or prepay obligations with or without call or prepayment fees.

Held-to-Maturity Securities by

Held-to-Maturity Securities by Major Security Type (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity fair value		$ 114,516	$ 148,068
Held-to-maturity securities - accrued interest receivable		214	200
U.S. government guaranteed - single-family MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	[1]	3,914	4,320
Gross Unrecognized Holding Gains		59	88
Gross Unrecognized Holding Losses		0	0
Held-to-maturity fair value		3,973	4,408
GSE – MBS [Member] | Single Family [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	[1]	109,783	141,172
Gross Unrecognized Holding Gains		1,152	2,605
Gross Unrecognized Holding Losses		(392)	(117)
Held-to-maturity fair value		110,543	143,660
MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	[1]	113,697	145,492
Gross Unrecognized Holding Gains		1,211	2,693
Gross Unrecognized Holding Losses		(392)	(117)
Held-to-maturity fair value		$ 114,516	$ 148,068
[1]Amortized cost of held-to-maturity securities includes adjustments made to the cost basis of an investment for accretion, amortization, and collection of cash. Amortized cost excludes accrued interest receivable of $214 thousand and $200 thousand at June 30, 2022, and December 31, 2021, respectively.

Proceeds and Gains (Losses) fro

Proceeds and Gains (Losses) from Sales of Investment Securities (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Securities, Available-for-sale, Sale [Abstract]
Proceeds from sale		$ 0	$ 0	$ 142,733	$ 0
Amortized cost		0	0	142,735	0
Gross realized gains from sale		0	0	124	0
Gross realized losses from sale		0	0	(126)	0
Realized net loss from sale		0	0	(2)	0
Debt Securities, Held-to-maturity, Sale [Abstract]
Proceeds from sale	[1]	0	0	10,405	0
Carrying value	[1]	0	0	10,385	0
Gross realized gains from sale	[1]	0	0	22	0
Debt Securities Held To Maturity Realized Loss	[1]	0	0	(2)	0
Realized net gain from sale	[1]	$ 0	$ 0	$ 20	$ 0
[1]Held-to-maturity securities sold had less than 15 percent of the acquired principal outstanding at the time of sale. Such sales are treated as maturities for the purposes of security classification. The sale does not impact our ability and intent to hold the remaining investments classified as held-to-maturity through their stated maturity dates.

Investments Narrative (Details)

Investments Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Interest-Bearing Deposits, Securities Purchased Under Agreements to Resell, and Federal Funds Sold, Percentage Rated Below Single-A	0%	0%
Allowance for credit losses for securities purchased under agreements to resell	$ 0	$ 0
Available for-Sale securities, rated single-A or above, based on amortized cost	100%	100%
Held -to-maturity securities, rated single-A or above, based on amortized cost	100%	100%
Allowance for credit losses on available-for-sale securities	$ 0	$ 0
Allowance for credit losses on held-to-maturity securities	0	0
Interest Bearing Deposits and Federal Funds Sold [Member]
Allowance for credit loss for interest bearing deposits and federal funds sold	$ 0	$ 0

Advances - Outstanding by Year

Advances - Outstanding by Year of Contractual Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Federal Home Loan Bank, Advances, Maturity, Rolling Year, Par Value [Abstract]
Overdrawn demand-deposit accounts		$ 126	$ 64
Due in one year or less		15,572,853	5,064,776
Due after one year through two years		9,536,392	1,354,297
Due after two years through three years		1,152,769	1,541,076
Due after three years through four years		1,352,529	2,173,238
Due after four years through five years		1,372,914	1,310,971
Due after five years through fifteen years		1,457,711	871,692
Thereafter		32,564	31,591
Total par value		30,477,858	12,347,705
Discounts		(33,800)	(34,926)
Fair value of bifurcated derivatives	[1]	1,580	11,890
Hedging adjustments		(127,152)	15,351
Total Advances	[2]	$ 30,318,486	$ 12,340,020
Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Rolling Year [Abstract]
Overdrawn demand-deposit accounts, Weighted average rate		1.90%	0.60%
Due in one year or less, Weighted average rate		1.55%	0.76%
Due after one year through two years, Weighted average rate		1.78%	2.26%
Due after two years through three years, Weighted average rate		1.74%	1.64%
Due after three years through four years, Weighted average rate		1.50%	1.43%
Due after four years through five years, Weighted average rate		1.81%	1.07%
Due after five years through fifteen years, Weighted average rate		2.19%	2.11%
Thereafter, Weighted average rate		1.28%	1.33%
Total Weighted average rate		1.67%	1.28%
Federal Home Loan Bank Advances Receivable
Federal Home Loan Bank, Advances, Maturity, Rolling Year, Par Value [Abstract]
Advances accrued interest receivable		$ 32,200	$ 16,300
[1]At June 30, 2022, and December 31, 2021, we had certain advances with embedded features that met the requirements to be separated from the host contract and designated as stand-alone derivatives.[2]Excludes accrued interest receivable of $32.2 million and $16.3 million at June 30, 2022, and December 31, 2021, respectively.

Advances - Outstanding by Yea_2

Advances - Outstanding by Year of Contractual Maturity or Next Call Date (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Call Date, Rolling Year, Par Value [Abstract]
Overdrawn demand-deposit accounts	$ 126	$ 64
Due in one year or less	24,926,478	6,116,251
Due after one year through two years	1,231,392	1,354,297
Due after two years through three years	1,062,994	1,249,001
Due after three years through four years	1,316,029	2,106,238
Due after four years through five years	455,164	632,271
Due after five years through fifteen years	1,453,111	857,992
Thereafter	32,564	31,591
Total par value	$ 30,477,858	$ 12,347,705

Advances - Outstanding by Yea_3

Advances - Outstanding by Year of Contractual Maturity or Next Put Date (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Federal Home Loan Bank, Advances, Earlier of Contractual Maturity or Next Put or Convert Date, Rolling Year, Par Value [Abstract]
Overdrawn demand-deposit accounts	$ 126	$ 64
Due in one year or less	15,881,753	6,088,201
Due after one year through two years	9,307,992	908,797
Due after two years through three years	1,141,769	1,497,076
Due after three years through four years	1,341,029	1,709,313
Due after four years through five years	1,358,914	1,277,471
Due after five years through fifteen years	1,413,711	835,192
Thereafter	32,564	31,591
Total par value	$ 30,477,858	$ 12,347,705

Advances - by Current Interest

Advances - by Current Interest Rate Terms (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Federal Home Loan Bank, Advances, Fixed Rate [Abstract]
Fixed-rate	$ 16,925,337	$ 9,998,766
Federal Home Loan Bank, Advances, Floating Rate [Abstract]
Variable-rate	13,552,521	2,348,939
Total par value	$ 30,477,858	$ 12,347,705

Advances - Prepayment Fees (Det

Advances - Prepayment Fees (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Federal Home Loan Bank Advances Prepayment Fees [Abstract]
Prepayment fees received from borrowers	$ 772	$ 4,728	$ 1,695	$ 14,145
Hedging fair-value adjustments on prepaid advances	1,271	(479)	1,280	(936)
Net discounts (premiums) associated with prepaid advances	321	(17)	303	(1,244)
Advance prepayment fees recognized in income, net	$ 2,364	$ 4,232	$ 3,278	$ 11,965

Advances - Narratives (Details)

Advances - Narratives (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Federal Home Loan Bank, Advances [Line Items]
Past due advances	[1]	$ 2,898,873	$ 3,121,859
Federal Home Loan Bank Advances Receivable
Federal Home Loan Bank, Advances [Line Items]
Nonaccrual status on advances		0	0
Impaired advances		0	0
Troubled debt restructuring related to advances		0	0
Allowance for credit loss on advances		0	0
Federal Home Loan Bank Advances Receivable | Financial Asset, Past Due
Federal Home Loan Bank, Advances [Line Items]
Past due advances		$ 0	$ 0
Minimum [Member]
Federal Home Loan Bank, Advances [Line Items]
Interest rates of advances outstanding		0%	0%
Maximum [Member]
Federal Home Loan Bank, Advances [Line Items]
Interest rates of advances outstanding		6.23%	7.72%
[1]    Excludes accrued interest receivable of $14.7 million and $15.7 million at June 30, 2022, and December 31, 2021, respectively.

Mortgage Loans Held for Portf_3

Mortgage Loans Held for Portfolio (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Par Value		$ 2,856,026	$ 3,072,075
Premiums		43,274	48,043
Discounts		(1,707)	(671)
Deferred derivative gains, net		1,280	2,412
Total mortgage loans held for portfolio	[1]	2,898,873	3,121,859
Less: Allowance for credit losses		(1,500)	(1,700)
Total mortgage loans, net of allowance for credit losses		$ 2,897,373	3,120,159
Fixed-rate 15-year single-family mortgages
Loans and Leases Receivable Disclosure [Line Items]
Original contractual terms		15 years
Fixed-rate 20- and 30-year single-family mortgages | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Original contractual terms		20 years
Fixed-rate 20- and 30-year single-family mortgages | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Original contractual terms		30 years
Single Family [Member] | Fixed-rate 15-year single-family mortgages
Loans and Leases Receivable Disclosure [Line Items]
Par Value		$ 247,499	278,393
Single Family [Member] | Fixed-rate 20- and 30-year single-family mortgages
Loans and Leases Receivable Disclosure [Line Items]
Par Value		2,608,527	2,793,682
Real Estate Loan
Loans and Leases Receivable Disclosure [Line Items]
Mortgage loans held for portfolio, accrued interest receivable		$ 14,700	$ 15,700
[1]    Excludes accrued interest receivable of $14.7 million and $15.7 million at June 30, 2022, and December 31, 2021, respectively.

Mortgage Loans Held for Portf_4

Mortgage Loans Held for Portfolio by Collateral/Guarantee Type (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Par Value	$ 2,856,026	$ 3,072,075
Government Mortgage Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Par Value	173,542	191,721
Conventional Mortgage Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Par Value	$ 2,682,484	$ 2,880,354

Credit Quality Indicator for Co

Credit Quality Indicator for Conventional Mortgage Loans (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total mortgage loans held for portfolio	[1]	$ 2,898,873	$ 3,121,859
Conventional Mortgage Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	1,273,107	1,176,078
Originated current fiscal year and preceding four fiscal years	[2]	1,448,925	1,750,347
Total mortgage loans held for portfolio	[2]	2,722,032	2,926,425
Conventional Mortgage Loans [Member] | Past due 30-59 days delinquent [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	7,149	7,719
Originated current fiscal year and preceding four fiscal years	[2]	4,069	8,053
Total mortgage loans held for portfolio	[2]	11,218	15,772
Conventional Mortgage Loans [Member] | Past due 60-89 days delinquent [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	3,099	3,312
Originated current fiscal year and preceding four fiscal years	[2]	2,602	2,660
Total mortgage loans held for portfolio	[2]	5,701	5,972
Conventional Mortgage Loans [Member] | Past due 90 days or more delinquent [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	9,838	11,932
Originated current fiscal year and preceding four fiscal years	[2]	6,754	9,196
Total mortgage loans held for portfolio	[2]	16,592	21,128
Conventional Mortgage Loans [Member] | Financial Asset, Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	20,086	22,963
Originated current fiscal year and preceding four fiscal years	[2]	13,425	19,909
Total mortgage loans held for portfolio	[2]	33,511	42,872
Conventional Mortgage Loans [Member] | Not past due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Originated five or more years before latest fiscal year	[2]	1,253,021	1,153,115
Originated current fiscal year and preceding four fiscal years	[2]	1,435,500	1,730,438
Total mortgage loans held for portfolio	[2]	$ 2,688,521	$ 2,883,553
[1]    Excludes accrued interest receivable of $14.7 million and $15.7 million at June 30, 2022, and December 31, 2021, respectively.[2]Amortized cost excludes accrued interest receivable.

Other Delinquency Statistics of

Other Delinquency Statistics of Mortgage Loans (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Mortgage Loans Past Due [Line Items]
In process of foreclosure	[1]	$ 2,722	$ 1,721
Past due 90 days or more still accruing interest		2,966	4,383
Loans on nonaccrual status	[2]	$ 16,821	$ 21,529
Past due 90 days or more delinquent [Member]
Mortgage Loans Past Due [Line Items]
Serious delinquency rate	[3]	0.68%	0.83%
Recorded Investment in Government Mortgage Loans [Member]
Mortgage Loans Past Due [Line Items]
In process of foreclosure	[1]	$ 878	$ 935
Past due 90 days or more still accruing interest		2,966	4,383
Loans on nonaccrual status	[2]	$ 0	$ 0
Recorded Investment in Government Mortgage Loans [Member] | Past due 90 days or more delinquent [Member]
Mortgage Loans Past Due [Line Items]
Serious delinquency rate	[3]	1.68%	2.24%
Recorded Investment in Conventional Mortgage Loans [Member]
Mortgage Loans Past Due [Line Items]
In process of foreclosure	[1]	$ 1,844	$ 786
Past due 90 days or more still accruing interest		0	0
Loans on nonaccrual status	[2]	16,821	21,529
Mortgage loans on non-accrual status with no allowance for credit losses		$ 7,700	$ 11,800
Recorded Investment in Conventional Mortgage Loans [Member] | Past due 90 days or more delinquent [Member]
Mortgage Loans Past Due [Line Items]
Serious delinquency rate	[3]	0.62%	0.74%
[1]Includes loans where the decision of foreclosure or a similar alternative such as the pursuit of a deed-in-lieu of foreclosure has been reported.[2]As of June 30, 2022, and December 31, 2021, $7.7 million and $11.8 million, respectively, of conventional mortgage loans on nonaccrual status did not have an associated allowance for credit losses because these loans were either charged off or the fair value of the underlying collateral, including any credit enhancements, is greater than the amortized cost of the loans.[3]Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the recorded investment in the total loan portfolio class.

Allowance for Credit Losses on

Allowance for Credit Losses on Conventional Mortgage Loans (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance, beginning of period				$ 1,700
(Reduction of) provision for credit losses		$ (99)	$ 199	(199)	$ (1,027)
Balance, end of period		1,500		1,500
Conventional Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance, beginning of period	[1]	1,600	1,900	1,700	3,100
(Charges-offs) recoveries	[1]	(1)	26	(1)	52
(Reduction of) provision for credit losses	[1]	(99)	199	(199)	(1,027)
Balance, end of period	[1]	$ 1,500	$ 2,125	$ 1,500	$ 2,125
[1]These amounts exclude government mortgage loans because we make no allowance for credit losses based on our investments in government mortgage loans, as discussed below under — Government Mortgage Loans Held for Portfolio.

Mortgage Loans Held for Portf_5

Mortgage Loans Held for Portfolio Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Allowance for credit losses - mortgage loans held for portfolio	$ 1,500	$ 1,700
Government Mortgage Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Allowance for credit losses - mortgage loans held for portfolio	0	0
Government mortgage loans not placed on non-accrual status	$ 0	$ 0

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities Derivatives in Statement of Condition (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		$ 37,655,564	$ 28,939,545
Derivative Assets, before netting and collateral adjustments		3,632	3,972
Derivative Liabilities, before netting and collateral adjustments		(1,046,865)	(177,578)
Derivative Asset, netting adjustments and cash collateral including related accrued interest	[1],[2]	385,607	374,560
Derivative Liability, netting adjustments and cash collateral including related accrued interest	[1],[2]	1,046,865	138,634
Derivative assets		389,239	378,532
Derivative liabilities		0	(38,944)
Cash collateral and related accrued interest posted		1,400,000	513,200
COs - bonds [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, before netting and collateral adjustments		28	54
Derivative Liabilities, before netting and collateral adjustments			(30)
Derivative assets		28	54
Derivative liabilities			(30)
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		37,298,900	27,980,956
Derivative Assets, before netting and collateral adjustments		3,496	410
Derivative Liabilities, before netting and collateral adjustments		(1,044,176)	(163,885)
Designated as Hedging Instrument [Member] | Interest-rate swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		35,907,900	26,589,956
Derivative Assets, before netting and collateral adjustments		3,496	362
Derivative Liabilities, before netting and collateral adjustments		(1,040,253)	(163,457)
Designated as Hedging Instrument [Member] | Forward-start interest-rate swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		1,391,000	1,391,000
Derivative Assets, before netting and collateral adjustments		0	48
Derivative Liabilities, before netting and collateral adjustments		(3,923)	(428)
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		356,664	958,589
Derivative Assets, before netting and collateral adjustments		136	3,562
Derivative Liabilities, before netting and collateral adjustments		(2,689)	(13,693)
Not Designated as Hedging Instrument [Member] | Interest-rate swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		329,800	900,425
Derivative Assets, before netting and collateral adjustments		0	3,440
Derivative Liabilities, before netting and collateral adjustments		(2,689)	(13,663)
Not Designated as Hedging Instrument [Member] | COs - bonds [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		20,000	55,000
Derivative Assets, before netting and collateral adjustments		28	54
Derivative Liabilities, before netting and collateral adjustments		0	(30)
Mortgage Receivable [Member] | Mortgage-delivery commitments [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, before netting and collateral adjustments		108	68
Derivative assets		108	68
Mortgage Receivable [Member] | Not Designated as Hedging Instrument [Member] | Mortgage-delivery commitments [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	[3]	6,864	3,164
Derivative Assets, before netting and collateral adjustments	[3]	108	68
Derivative Liabilities, before netting and collateral adjustments	[3]	$ 0	$ 0
[1]Amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions with the same counterparty. Cash collateral posted, including accrued interest, was $1.4 billion and $513.2 million at June 30, 2022, and December 31, 2021, respectively. The change in cash collateral posted is included in the net change in interest-bearing deposits in the statement of cash flows.[2]These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.[3]Mortgage-delivery commitments are classified as derivatives with changes in fair value recorded in other income.

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities Derivatives in Statement of Income and Impact on Interest Income/Expense (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Interest income on advances		$ 69,277	$ 43,230	$ 103,270	$ 92,782
Interest income on available-for-sale securities		62,405	10,841	107,138	33,836
Interest expense on consolidated obligations bonds		(78,242)	(53,684)	(122,142)	(115,285)
Advances [Member] | Interest Rate Contract [Member] | Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives		48,392	(964)	144,241	40,897
Hedged items		(47,489)	718	(141,985)	(40,140)
Net changes in fair value before price alignment interest		903	(246)	2,256	757
Price alignment interest	[1]	(185)	1	(207)	16
Net interest settlements on derivatives	[2],[3]	(5,205)	(16,042)	(15,131)	(31,867)
Net (losses) gains on qualifying hedging relationships		(4,487)	(16,287)	(13,082)	(31,094)
Amortization/accretion of discontinued hedging relationships		(273)	(705)	(536)	(1,404)
Net (losses) gains on derivatives and hedging activities recorded in net interest income		(4,760)	(16,992)	(13,618)	(32,498)
Available-for-sale Securities [Member] | Interest Rate Contract [Member] | Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives		350,986	(128,985)	987,668	127,518
Hedged items		(334,705)	124,871	(957,045)	(124,068)
Net changes in fair value before price alignment interest		16,281	(4,114)	30,623	3,450
Price alignment interest	[1]	(949)	16	(1,000)	65
Net interest settlements on derivatives	[2],[3]	(21,256)	(29,847)	(58,647)	(51,784)
Net (losses) gains on qualifying hedging relationships		(5,924)	(33,945)	(29,024)	(48,269)
Amortization/accretion of discontinued hedging relationships		0	0	0	0
Net (losses) gains on derivatives and hedging activities recorded in net interest income		(5,924)	(33,945)	(29,024)	(48,269)
COs - bonds [Member] | Interest Rate Contract [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives		(238,288)	36,662	(807,521)	(67,857)
Hedged items		238,516	(36,596)	808,226	68,159
Net changes in fair value before price alignment interest		228	66	705	302
Price alignment interest	[1]	31	0	33	(3)
Net interest settlements on derivatives	[2],[3]	15,049	16,000	41,840	23,470
Net (losses) gains on qualifying hedging relationships		15,308	16,066	42,578	23,769
Amortization/accretion of discontinued hedging relationships		510	749	1,012	1,661
Net (losses) gains on derivatives and hedging activities recorded in net interest income		$ 15,818	$ 16,815	$ 43,590	$ 25,430
[1]Relates to derivatives for which variation margin payments are characterized as daily settled contracts.[2]Excludes the interest income/expense of the respective hedged items recorded in net interest income.[3]Represents interest income/expense on derivatives in qualifying fair-value hedging relationships. Net interest settlements on derivatives that are not in qualifying fair-value hedging relationships are reported in other income.

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities Net Gains (Losses) on Cash Flow Hedging Relationships (Details) - Forward-start interest rate swaps [Member] - COs - bonds [Member] - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Losses reclassified from accumulated other comprehensive loss into interest expense	$ (1,455)	$ (1,506)	$ (2,893)	$ (3,063)
Other Comprehensive Income (Loss) [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gains recognized in other comprehensive income	$ 22,182	$ (14,224)	$ 44,240	$ (9,038)

Derivatives and Hedging Activ_6

Derivatives and Hedging Activities Basis Adjustments for Fair Value Hedges (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Advances [Member]
Derivatives, Fair Value [Line Items]
Amortized Cost of Hedged Asset/(Liability)	$ 2,487,643	[1]
Basis Adjustments for Active Hedging Relationships Included in Amortized Cost	(135,508)
Basis Adjustments for Discontinued Hedging Relationships Included in Amortized Cost	8,356
Cumulative Amount of Fair Value Hedging Basis Adjustments	(127,152)
Available-for-sale Securities [Member]
Derivatives, Fair Value [Line Items]
Amortized Cost of Hedged Asset/(Liability)	11,721,006	[1]
Basis Adjustments for Active Hedging Relationships Included in Amortized Cost	(746,699)
Basis Adjustments for Discontinued Hedging Relationships Included in Amortized Cost	0
Cumulative Amount of Fair Value Hedging Basis Adjustments	(746,699)
COs - bonds [Member]
Derivatives, Fair Value [Line Items]
Amortized Cost of Hedged Asset/(Liability)	19,742,699	[1]
Basis Adjustments for Active Hedging Relationships Included in Amortized Cost	(983,854)
Basis Adjustments for Discontinued Hedging Relationships Included in Amortized Cost	30,583
Cumulative Amount of Fair Value Hedging Basis Adjustments	$ (953,271)
[1]Includes only the amortized cost of hedged items in fair-value hedging relationships.

Derivatives and Hedging Activ_7

Derivatives and Hedging Activities Derivatives in Statement of Income and Impact on Other Income/Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities		$ (114)	$ 447	$ (787)	$ (401)
Interest-rate swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities		525	193	4	7
CO Bond firm commitments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities		(521)	0	0	19
Total net losses related to derivatives not designated as hedging instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities		(114)	446	(787)	(407)
Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities	[1]	0	1	0	6
Mortgage Receivable [Member] | Mortgage-delivery commitments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net (losses) gains on derivatives and hedging activities		$ (118)	$ 253	$ (791)	$ (433)
[1]Consists of price alignment amount on derivatives for which variation margin is characterized as a daily settlement amount.

Impact of Variation Margin for

Impact of Variation Margin for Cleared Derivatives on the Statement of Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Derivative [Line Items]
Financing activity - net payments on derivatives with a financing element	$ (94,558)	$ (30,092)
Cleared derivatives [Member]
Derivative [Line Items]
Operating activity - net change in derivatives and hedging activities	1,142,853	100,548
Financing activity - net payments on derivatives with a financing element	107,216	42,215
Total variation margin received on cleared derivatives	$ 1,250,069	$ 142,763

Derivatives and Hedging Activ_8

Derivatives and Hedging Activities Fair Value of Derivative Instruments With or Without Legal Rights of Offset (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Derivative Assets, Netting Adjustments and Cash Collateral	[1],[2]	$ 385,607	$ 374,560
Derivative liability, Netting Adjustments and Cash Collateral	[1],[2]	1,046,865	138,634
Derivative Assets, before netting and collateral adjustments		3,632	3,972
Derivative Liabilities, before netting and collateral adjustments		(1,046,865)	(177,578)
Derivative assets		389,239	378,532
Derivative liabilities		0	(38,944)
Derivative Asset, Fair value, amount offset against collateral		389,239	378,532
Derivative Liability, Fair value, amount offset against collateral		0	(10,570)
Unsettled CO bonds, at par [Member]
Offsetting Assets [Line Items]
Derivative Assets, before netting and collateral adjustments		28	54
Derivative Liabilities, before netting and collateral adjustments			(30)
Derivative assets		28	54
Derivative liabilities			(30)
Derivative Asset, Fair value, amount offset against collateral		28	54
Derivative Liability, Fair value, amount offset against collateral			(30)
Uncleared derivatives [Member] | Interest-rate swaps [Member]
Offsetting Assets [Line Items]
Derivative Asset, total gross recognized amount		1,810	327
Derivative Liability, total gross recognized amount		(943,323)	(171,374)
Derivative Assets, Netting Adjustments and Cash Collateral	[3]	59,771	(103)
Derivative liability, Netting Adjustments and Cash Collateral	[3]	943,323	132,460
Derivative assets		61,581	224
Derivative liabilities		0	(38,914)
Derivative, Collateral, Obligation To Return Securities That Cannot Be Sold Or Repledged	[4]	0	0
Derivative Liabilities, fair value of securities pledged as collateral that cannot be sold or repledged	[4]	0	28,374
Derivative Asset, Fair value, amount offset against collateral		61,581	224
Derivative Liability, Fair value, amount offset against collateral		0	(10,540)
Cleared derivatives [Member] | Interest-rate swaps [Member]
Offsetting Assets [Line Items]
Derivative Asset, total gross recognized amount		1,686	3,523
Derivative Liability, total gross recognized amount		(103,542)	(6,175)
Derivative Assets, Netting Adjustments and Cash Collateral	[3]	325,836	374,663
Derivative liability, Netting Adjustments and Cash Collateral	[3]	103,542	6,175
Derivative assets		327,522	378,186
Derivative liabilities		0	0
Derivative, Collateral, Obligation To Return Securities That Cannot Be Sold Or Repledged	[4]	0	0
Derivative Liabilities, fair value of securities pledged as collateral that cannot be sold or repledged	[4]	0	0
Derivative Asset, Fair value, amount offset against collateral		327,522	378,186
Derivative Liability, Fair value, amount offset against collateral		0	0
Mortgage Receivable [Member] | Mortgage-delivery commitments [Member]
Offsetting Assets [Line Items]
Derivative Assets, before netting and collateral adjustments		108	68
Derivative assets		108	68
Derivative Asset, Fair value, amount offset against collateral		$ 108	$ 68
[1]Amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions with the same counterparty. Cash collateral posted, including accrued interest, was $1.4 billion and $513.2 million at June 30, 2022, and December 31, 2021, respectively. The change in cash collateral posted is included in the net change in interest-bearing deposits in the statement of cash flows.[2]These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.[3]Includes gross amounts of netting adjustments and cash collateral.[4]Includes non-cash collateral at fair value that cannot be sold or repledged by the counterparty.

Derivatives and Hedging Activ_9

Derivatives and Hedging Activities Narratives (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022
Derivative [Line Items]
Reclassifications from accumulated other comprehensive loss into earnings as a result of the discontinuance of cash-flow hedges		$ 0	$ 0
Maximum length of time which we are hedging our exposure to the variability in future cash flows for forecasted transactions				9 years
Deferred net losses on derivatives accumulated in other comprehensive loss related to cash flow hedges expected to be reclassified to earnings during the next 12 months				$ 4,900,000
Aggregate fair value of all uncleared derivatives in a net-liability position (before cash collateral and related accrued interest)		941,500,000		941,500,000
Post-haircut value of collateral already posted		1,000,000,000		1,000,000,000
Rating Downgrade from AAPlus to AA or AAMinus [Member]
Derivative [Line Items]
Incremental collateral	[1]	0		0
Rating Downgrade From AAMinus to APlus, A or AMinus [Member]
Derivative [Line Items]
Incremental collateral	[1]	0		0
Rating Downgrade From AMinus to below AMinus [Member]
Derivative [Line Items]
Incremental collateral	[1]	$ 43,803,000		$ 43,803,000
[1]Ratings are expressed in this table according to S&P's conventions but include the equivalent of such rating by Moody's. If there is a split rating, the lower rating is used.

Deposits Narratives (Details)

Deposits Narratives (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Deposits [Abstract]
Interest-bearing deposits demand and overnight	$ 1,033,389	$ 831,009
Interest-bearing deposits other	1,846	1,998
Non-interest bearing deposits other	31,224	51,025
Total deposits	$ 1,066,459	$ 884,032

CO Bonds Outstanding by Contrac

CO Bonds Outstanding by Contractual Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Schedule of Short-term and Long-term Debt [Line Items]
Due in one year or less, weighted average rate	[1]	1.72%	0.79%
Due after one year through two years, weighted average rate	[1]	1.92%	1.18%
Due after two years through three years, weighted average rate	[1]	1.28%	1.09%
Due after three years through four years, weighted average rate	[1]	0.88%	0.88%
Due after four years through five years, weighted average rate	[1]	1.32%	0.91%
Thereafter, weighted average rate	[1]	2%	1.91%
Total par value		$ 33,652,930	$ 26,725,180
Hedging adjustments		(953,271)	(143,388)
Total		32,721,605	26,613,032
COs - bonds [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Due in one year or less		11,992,260	6,919,220
Due after one year through two years		3,275,075	3,069,155
Due after two years through three years		4,962,995	3,514,735
Due after three years through four years		5,080,415	3,029,600
Due after four years through five years		4,135,320	5,735,605
Thereafter		4,206,865	4,456,865
Total par value		$ 33,652,930	$ 26,725,180
Total par value, weighted average rate	[1]	1.53%	1.10%
Premiums		$ 30,368	$ 40,251
Discounts		$ (8,422)	$ (9,011)
[1]The CO bonds' weighted-average rate excludes concession fees.

CO Bonds Outstanding by Call Fe

CO Bonds Outstanding by Call Feature (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total par value	$ 33,652,930	$ 26,725,180
Noncallable and nonputable
Debt Instrument [Line Items]
Total par value	12,961,180	13,924,180
Callable
Debt Instrument [Line Items]
Total par value	$ 20,691,750	$ 12,801,000

CO Bonds Outstanding by Contr_2

CO Bonds Outstanding by Contractual Maturity or Next Call Date (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total par value	$ 33,652,930	$ 26,725,180
Earlier Of Contractual Maturity Or Next Call Date [Member]
Debt Instrument [Line Items]
Due in one year or less	27,530,010	19,150,220
Due after one year through two years	1,762,325	3,461,155
Due after two years through three years	1,221,995	1,044,735
Due after three years through four years	1,669,415	1,544,600
Due after four years through five years	499,320	539,605
Thereafter	969,865	984,865
Total par value	$ 33,652,930	$ 26,725,180

CO Bonds by Interest Rate-Payme

CO Bonds by Interest Rate-Payment Type (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total par value		$ 33,652,930	$ 26,725,180
Fixed-rate [Member]
Debt Instrument [Line Items]
Total par value		22,652,180	17,707,180
Simple variable-rate [Member]
Debt Instrument [Line Items]
Total par value		5,507,000	4,803,000
Step-up [Member]
Debt Instrument [Line Items]
Total par value	[1]	$ 5,493,750	$ 4,215,000
[1]Step-up bonds pay interest at increasing fixed rates for specified intervals over the life of the CO bond and can be called at our option on the step-up dates.

CO Discount Notes Outstanding (

CO Discount Notes Outstanding (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Federal Home Loan Bank, Consolidated Obligations, Discount Notes		$ 25,096,230	$ 2,275,320
Par value		$ 25,119,223	$ 2,275,519
Weighted Average Rate	[1]	1.36%	0.05%
[1]CO discount notes' weighted-average rate represents a yield to maturity excluding concession fees.

Affordable Housing Program Narr

Affordable Housing Program Narratives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Affordable Housing Program [Roll Forward]
Balance at beginning of year			$ 70,503	$ 78,640	$ 78,640
AHP expense for the period	$ 4,567	$ 687	7,667	3,010	7,739
AHP voluntary contribution	5,455	$ 1,713	13,980	4,789	4,761
AHP direct grant disbursements			(6,708)	$ (7,838)	(17,980)
AHP subsidy for AHP advance disbursements			(1,291)		(5,806)
Return of previously disbursed grants and subsidies			935		3,149
Balance at end of period	$ 85,086		$ 85,086		$ 70,503

Regulatory Capital Requirements

Regulatory Capital Requirements (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Banking Regulation, Total Capital [Abstract]
Capital-to-asset ratio, Required	4%	4%
Leverage capital-to-assets ratio, Required	5%	5%
Multiplier for Determining Permanent Capital in Leverage Capital Calculation	1.5
Class B capital stock	$ 1,557,243	$ 953,638
Mandatorily redeemable capital stock	10,703	13,562
Retained earnings	1,607,178	1,548,406
Total permanent capital	3,175,124	2,515,606
Credit-risk capital	111,551	84,301
Market-risk capital	224,681	213,467
Operations-risk capital	100,870	89,330
Total risk-based capital requirement	437,102	387,098
Permanent capital in excess of risk-based capital requirement	2,738,022	2,128,508
Regulatory capital, Required	2,482,560	1,301,812
Leverage capital, Required	3,103,200	1,627,265
Risk-based capital, Actual	3,175,124	2,515,606
Regulatory capital, Actual	$ 3,175,124	$ 2,515,606
Capital-to-asset ratio, Actual	5.10%	7.70%
Leverage capital, Actual	$ 4,762,686	$ 3,773,409
Leverage capital-to-assets ratio, Actual	7.70%	11.60%

Capital Narratives (Details)

Capital Narratives (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Contribution requirement - Restricted Retained Earnings	$ 421,400		$ 421,400
Restricted retained earnings	376,620		376,620		$ 368,420
Contributed net income to retained earnings	(86,609)	$ 32,576	(176,541)	$ 58,545
Retained Earnings, Restricted
Contributed net income to retained earnings	$ 8,200	$ 0	$ 8,200	$ 0
Certain member assets eligible to secure advances [Member]
Class B stock purchase requirement	0.20%		0.20%
Overnight advances [Member]
Class B stock purchase requirement	3%		3%
All other advances greater than overnight [Member]
Class B stock purchase requirement	4%		4%
Outstanding letters of credit [Member]
Class B stock purchase requirement	0.25%		0.25%
Unpaid principal balance of mortgage purchased through MPF program
Class B stock purchase requirement	4.50%		4.50%
Common Class B [Member]
Common Stock, Class B, putable par value per share	$ 100		$ 100		$ 100
Minimum [Member]
Class B Stock Purchase Requirement Amount	$ 10		$ 10
Maximum [Member]
Class B Stock Purchase Requirement Amount	$ 10,000		$ 10,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) Before Tax1 [Roll Forward]
Beginning of period		$ 2,411,787	$ 2,717,064	$ 2,531,011	$ 2,781,953
Total other comprehensive (loss) income		(127,609)	26,422	(245,376)	31,506
Period end		2,948,012	2,644,401	2,948,012	2,644,401
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) Before Tax1 [Roll Forward]
Beginning of period		(2,795)	(17,622)	(26,291)	(24,365)
Net unrealized gains (losses)		22,182	(14,224)	44,240	(9,038)
Net actuarial gains (losses)		0	0	0	0
Amortization - hedging activities	[1]	1,455	1,506	2,893	3,063
Amortization - pension and postretirement benefits	[2]	0	0	0	0
Reclassification of realized net gains included in net income	[3]			0
Total other comprehensive (loss) income		23,637	(12,718)	47,133	(5,975)
Period end		20,842	(30,340)	20,842	(30,340)
Pension and Postretirement Benefits [Member]
Accumulated Other Comprehensive Income (Loss) Before Tax1 [Roll Forward]
Beginning of period		(2,732)	(7,804)	(2,755)	(8,064)
Net unrealized gains (losses)		0	0	0	0
Net actuarial gains (losses)		(685)	1,292	(685)	1,292
Amortization - hedging activities	[1]	0	0	0	0
Amortization - pension and postretirement benefits	[2]	187	37	210	297
Reclassification of realized net gains included in net income	[3]			0
Total other comprehensive (loss) income		(498)	1,329	(475)	1,589
Period end		(3,230)	(6,475)	(3,230)	(6,475)
Total [Member]
Accumulated Other Comprehensive Income (Loss) Before Tax1 [Roll Forward]
Beginning of period		(88,800)	21,223	28,967	16,139
Net unrealized gains (losses)		(128,566)	23,587	(247,796)	26,854
Net actuarial gains (losses)		(685)	1,292	(685)	1,292
Amortization - hedging activities	[1]	1,455	1,506	2,893	3,063
Amortization - pension and postretirement benefits	[2]	187	37	210	297
Reclassification of realized net gains included in net income	[3]			2
Total other comprehensive (loss) income		(127,609)	26,422	(245,376)	31,506
Period end		(216,409)	47,645	(216,409)	47,645
Available-for-sale Securities [Member] | Net Unrealized Loss on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) Before Tax1 [Roll Forward]
Beginning of period		(83,273)	46,649	58,013	48,568
Net unrealized gains (losses)		(150,748)	37,811	(292,036)	35,892
Net actuarial gains (losses)		0	0	0	0
Amortization - hedging activities	[1]	0	0	0	0
Amortization - pension and postretirement benefits	[2]	0	0	0	0
Reclassification of realized net gains included in net income	[3]			2
Total other comprehensive (loss) income		(150,748)	37,811	(292,034)	35,892
Period end		$ (234,021)	$ 84,460	$ (234,021)	$ 84,460
[1]Recorded in CO bond interest expense.[2]Recorded in other expenses in the statement of operations[3]Recorded in other income (loss) in the statement of operations

Fair Values Carrying Value and

Fair Values Carrying Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		$ 65,965	$ 204,993
Available-for-sale securities		13,496,627	12,895,987
Held-to-Maturity Securities Carrying Value	[1]	113,697	145,492
Held-to-maturity fair value		114,516	148,068
Accrued interest receivable		85,367	68,360
Derivative assets		389,239	378,532
Derivative Assets, Netting Adjustments and Cash Collateral	[2],[3]	385,607	374,560
Mandatorily redeemable capital stock		(10,703)	(13,562)
Accrued interest payable		(86,722)	(60,968)
Derivative liabilities		0	(38,944)
Derivative liability, Netting Adjustments and Cash Collateral	[2],[3]	1,046,865	138,634
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		65,965	204,993
Interest-bearing deposits		395,230	85,153
Securities purchased under agreements to resell		0	0
Federal funds sold		0	0
Trading securities	[4]	0	0
Available-for-sale securities	[4]	0	0
Held-to-maturity fair value		0	0
Advances		0	0
Mortgage loans, net		0	0
Accrued interest receivable		0	0
Derivative assets	[4]	0	0
Other assets	[4]	13,308	13,937
Deposits		0	0
Mandatorily redeemable capital stock		(10,703)	(13,562)
Accrued interest payable		0	0
Derivative liabilities	[4]	0	0
Level 1 [Member] | Commitments to make additional advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		0	0
Level 1 [Member] | Standby Letters of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		0	0
Level 1 [Member] | COs - Discount notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Discount notes		0	0
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		0	0
Interest-bearing deposits		0	0
Securities purchased under agreements to resell		11,249,945	799,998
Federal funds sold		2,997,988	1,943,998
Trading securities	[4]	980	501,867
Available-for-sale securities	[4]	13,436,094	12,833,722
Held-to-maturity fair value		114,516	148,068
Advances		30,213,245	12,440,985
Mortgage loans, net		2,711,151	3,204,222
Accrued interest receivable		85,367	68,360
Derivative assets	[4]	3,632	3,972
Other assets	[4]	16,757	18,633
Deposits		(1,066,426)	(884,029)
Mandatorily redeemable capital stock		0	0
Accrued interest payable		(86,722)	(60,968)
Derivative liabilities	[4]	(1,046,865)	(177,578)
Level 2 [Member] | Commitments to make additional advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		(13,526)	(6,196)
Level 2 [Member] | Standby Letters of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		(1,366)	(1,146)
Level 2 [Member] | COs - Discount notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Discount notes		(25,093,489)	(2,275,276)
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		0	0
Interest-bearing deposits		0	0
Securities purchased under agreements to resell		0	0
Federal funds sold		0	0
Trading securities	[4]	0	0
Available-for-sale securities	[4]	60,533	62,265
Held-to-maturity fair value		0	0
Advances		0	0
Mortgage loans, net		23,830	30,607
Accrued interest receivable		0	0
Derivative assets	[4]	0	0
Other assets	[4]	0	0
Deposits		0	0
Mandatorily redeemable capital stock		0	0
Accrued interest payable		0	0
Derivative liabilities	[4]	0	0
Level 3 [Member] | Commitments to make additional advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		0	0
Level 3 [Member] | Standby Letters of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		0	0
Level 3 [Member] | COs - Discount notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Discount notes		0	0
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		65,965	204,993
Interest-bearing deposits		395,230	85,153
Securities purchased under agreements to resell		11,250,000	800,000
Federal funds sold		2,998,000	1,944,000
Trading securities	[4]	980	501,867
Available-for-sale securities	[4]	13,496,627	12,895,987
Held-to-Maturity Securities Carrying Value		113,697	145,492
Advances		30,318,486	12,340,020
Mortgage loans, net		2,897,373	3,120,159
Accrued interest receivable		85,367	68,360
Derivative assets	[4]	389,239	378,532
Other assets	[4]	30,065	32,570
Deposits		(1,066,459)	(884,032)
Mandatorily redeemable capital stock		(10,703)	(13,562)
Accrued interest payable		(86,722)	(60,968)
Derivative liabilities	[4]	0	(38,944)
Carrying Value [Member] | Commitments to make additional advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		0	0
Carrying Value [Member] | Standby Letters of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		(1,366)	(1,146)
Carrying Value [Member] | COs - Discount notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Discount notes		(25,096,230)	(2,275,320)
Total Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		65,965	204,993
Interest-bearing deposits		395,230	85,153
Securities purchased under agreements to resell		11,249,945	799,998
Federal funds sold		2,997,988	1,943,998
Trading securities	[4]	980	501,867
Available-for-sale securities	[4]	13,496,627	12,895,987
Held-to-maturity fair value		114,516	148,068
Advances		30,213,245	12,440,985
Mortgage loans, net		2,734,981	3,234,829
Accrued interest receivable		85,367	68,360
Derivative assets	[4]	389,239	378,532
Other assets	[4]	30,065	32,570
Deposits		(1,066,426)	(884,029)
Mandatorily redeemable capital stock		(10,703)	(13,562)
Accrued interest payable		(86,722)	(60,968)
Derivative liabilities	[4]	0	(38,944)
Total Fair Value [Member] | Commitments to make additional advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		(13,526)	(6,196)
Total Fair Value [Member] | Standby Letters of Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other		(1,366)	(1,146)
Total Fair Value [Member] | COs - Discount notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Discount notes		(25,093,489)	(2,275,276)
COs - bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Bonds		0	0
COs - bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Bonds		(32,435,784)	(26,882,036)
COs - bonds [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Bonds		0	0
COs - bonds [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Bonds		(32,721,605)	(26,613,032)
COs - bonds [Member] | Total Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
CO Bonds		$ (32,435,784)	$ (26,882,036)
[1]Fair values of held-to-maturity securities were $114,516 and $148,068 at June 30, 2022, and December 31, 2021, respectively.[2]Amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions with the same counterparty. Cash collateral posted, including accrued interest, was $1.4 billion and $513.2 million at June 30, 2022, and December 31, 2021, respectively. The change in cash collateral posted is included in the net change in interest-bearing deposits in the statement of cash flows.[3]These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.[4]Carried at fair value and measured on a recurring basis.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		$ 13,496,627	$ 12,895,987
Derivative assets		389,239	378,532
Derivative Assets, Netting Adjustments and Cash Collateral	[1],[2]	385,607	374,560
Derivative liabilities		0	(38,944)
Derivative liability, Netting Adjustments and Cash Collateral	[1],[2]	1,046,865	138,634
Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		28	54
Derivative liabilities			(30)
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	[3]	0	0
Available-for-sale securities	[3]	0	0
Derivative assets	[3]	0	0
Other assets	[3]	13,308	13,937
Mortgage loans held for portfolio		0	0
Derivative liabilities	[3]	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	[3]	980	501,867
Available-for-sale securities	[3]	13,436,094	12,833,722
Derivative assets	[3]	3,632	3,972
Other assets	[3]	16,757	18,633
Mortgage loans held for portfolio		2,711,151	3,204,222
Derivative liabilities	[3]	(1,046,865)	(177,578)
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	[3]	0	0
Available-for-sale securities	[3]	60,533	62,265
Derivative assets	[3]	0	0
Other assets	[3]	0	0
Mortgage loans held for portfolio		23,830	30,607
Derivative liabilities	[3]	0	0
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets, Netting Adjustments and Cash Collateral	[4]	385,607	374,560
Derivative liability, Netting Adjustments and Cash Collateral	[4]	1,046,865	138,634
Recurring [Member] | Interest-rate swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets, Netting Adjustments and Cash Collateral	[4]	385,607	374,560
Derivative liability, Netting Adjustments and Cash Collateral	[4]	1,046,865	138,634
Recurring [Member] | Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets			54
Derivative liabilities			(30)
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			0
Available-for-sale securities		0	0
Derivative assets		0	0
Other assets		13,308	13,937
Total assets carried at fair value		13,308	13,937
Total liabilities carried at fair value		0	0
Recurring [Member] | Level 1 [Member] | Interest-rate swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Derivative liabilities		0	0
Recurring [Member] | Level 1 [Member] | Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Derivative liabilities			0
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			501,867
Available-for-sale securities		13,436,094	12,833,722
Derivative assets		3,632	3,972
Other assets		16,757	18,633
Total assets carried at fair value		13,457,463	13,358,194
Total liabilities carried at fair value		(1,046,865)	(177,578)
Recurring [Member] | Level 2 [Member] | Interest-rate swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		3,496	3,850
Derivative liabilities		(1,046,865)	(177,548)
Recurring [Member] | Level 2 [Member] | Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		28	54
Derivative liabilities			(30)
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			0
Available-for-sale securities		60,533	62,265
Derivative assets		0	0
Other assets		0	0
Total assets carried at fair value		60,533	62,265
Total liabilities carried at fair value		0	0
Recurring [Member] | Level 3 [Member] | Interest-rate swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Derivative liabilities		0	0
Recurring [Member] | Level 3 [Member] | Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Derivative liabilities			0
Nonrecurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	[5]	0	0
Mortgage loans held for portfolio	[5]	0	0
REO	[5]		0
Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	[5]	0	0
Mortgage loans held for portfolio	[5]	0	0
REO	[5]		0
Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	[5]	90	3,919
Mortgage loans held for portfolio	[5]	90	3,860
REO	[5]		59
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	[3]	980	501,867
Available-for-sale securities	[3]	13,496,627	12,895,987
Derivative assets	[3]	389,239	378,532
Other assets	[3]	30,065	32,570
Mortgage loans held for portfolio		2,734,981	3,234,829
Derivative liabilities	[3]	0	(38,944)
Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			501,867
Available-for-sale securities		13,496,627	12,895,987
Derivative assets		389,239	378,532
Other assets		30,065	32,570
Total assets carried at fair value		13,916,911	13,808,956
Total liabilities carried at fair value		0	(38,944)
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Interest-rate swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		389,103	378,410
Derivative liabilities		0	(38,914)
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Unsettled CO bonds, at par [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		28
Estimate of Fair Value Measurement [Member] | Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets carried at fair value	[5]	90	3,919
Mortgage loans held for portfolio	[5]	90	3,860
REO	[5]		59
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		980	1,442
Corporate bonds [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0	0
Corporate bonds [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		980	1,442
Corporate bonds [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0	0
Corporate bonds [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		980	1,442
HFA securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		60,533	62,265
HFA securities [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
HFA securities [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
HFA securities [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		60,533	62,265
HFA securities [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		60,533	62,265
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0	500,425
Available-for-sale securities		5,889,613	5,084,546
US Treasury Securities [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			0
Available-for-sale securities		0	0
US Treasury Securities [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			500,425
Available-for-sale securities		5,889,613	5,084,546
US Treasury Securities [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			0
Available-for-sale securities		0	0
US Treasury Securities [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities			500,425
Available-for-sale securities		5,889,613	5,084,546
Supranational institutions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		369,247	403,765
Supranational institutions [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
Supranational institutions [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		369,247	403,765
Supranational institutions [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
Supranational institutions [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		369,247	403,765
U.S. government guaranteed - single-family MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		17,971	21,535
U.S. government guaranteed - single-family MBS [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government guaranteed - single-family MBS [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		17,971	21,535
U.S. government guaranteed - single-family MBS [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government guaranteed - single-family MBS [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		17,971	21,535
U.S. government guaranteed-multifamily MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		518,612	541,405
U.S. government guaranteed-multifamily MBS [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government guaranteed-multifamily MBS [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		518,612	541,405
U.S. government guaranteed-multifamily MBS [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government guaranteed-multifamily MBS [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		518,612	541,405
Mortgage Receivable [Member] | Recurring [Member] | Level 1 [Member] | Mortgage-delivery commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Mortgage Receivable [Member] | Recurring [Member] | Level 2 [Member] | Mortgage-delivery commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		108	68
Mortgage Receivable [Member] | Recurring [Member] | Level 3 [Member] | Mortgage-delivery commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0	0
Mortgage Receivable [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member] | Mortgage-delivery commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		108	68
U.S. government-owned corporations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		249,179	306,864
U.S. government-owned corporations [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government-owned corporations [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		249,179	306,864
U.S. government-owned corporations [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
U.S. government-owned corporations [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		249,179	306,864
GSE [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		106,506	126,472
GSE [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
GSE [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		106,506	126,472
GSE [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
GSE [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		106,506	126,472
Single Family [Member] | Government Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		883,424	1,103,714
Single Family [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
Single Family [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		883,424	1,103,714
Single Family [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
Single Family [Member] | Government Sponsored Enterprises [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		883,424	1,103,714
GSE - multifamily [Member] | Government Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		5,401,542	5,245,421
GSE - multifamily [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
GSE - multifamily [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		5,401,542	5,245,421
GSE - multifamily [Member] | Government Sponsored Enterprises [Member] | Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		0	0
GSE - multifamily [Member] | Government Sponsored Enterprises [Member] | Estimate of Fair Value Measurement [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		$ 5,401,542	$ 5,245,421
[1]Amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions with the same counterparty. Cash collateral posted, including accrued interest, was $1.4 billion and $513.2 million at June 30, 2022, and December 31, 2021, respectively. The change in cash collateral posted is included in the net change in interest-bearing deposits in the statement of cash flows.[2]These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.[3]Carried at fair value and measured on a recurring basis.[4]These amounts represent the effect of master-netting agreements intended to allow us to settle positive and negative positions and also cash collateral and related accrued interest held or placed with the same clearing member and/or counterparty.[5]We measure certain mortgage loans held for portfolio and REO at fair value on a nonrecurring basis, that is, they are not measured at fair value on an ongoing basis but are subject to fair-value adjustments only in certain circumstances. The fair values presented are as of the date the fair value adjustment was recorded.

Estimated Fair Value Level 3 Re

Estimated Fair Value Level 3 Reconciliation - Roll Forward (Details) - HFA securities [Member] - Level 3 [Member] - Recurring [Member] - Available-for-sale Securities [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of year	$ 61,444	$ 107,908	$ 62,265	$ 122,549
Total (losses) gains included in other comprehensive income [Abstract]
Net unrealized (losses) gains	(51)	1,129	(872)	3,333
Sales, maturities, and settlements [Abstract]
Maturities	0	(21,740)	0	(38,360)
Settlements	(860)	(1,220)	(860)	(1,445)
Balance at end of period	60,533	86,077	60,533	86,077
Total amount of unrealized (losses) gains for the period included in other comprehensive income relating to securities held at period end	$ (51)	$ (1,132)	$ (872)	$ 217

Off-Balance Sheet Commitments (

Off-Balance Sheet Commitments (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Value of the guarantees related to standby letters of credit		$ 49,177	$ 57,920
Maximum term of commitments to invest in mortgage loans		60 days
Other FHLBanks [Member]
Loss Contingencies [Line Items]
Par value of other FHLBanks' outstanding COs for which we are jointly and severally liable		$ 823,700,000	623,900,000
Maximum [Member]
Loss Contingencies [Line Items]
Standby letters of credit, original terms		20 years
Standby letters of credit, current terms		10 years
Standby letters of credit [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[1],[2]	$ 9,997,436	5,369,701
Off-balance-sheet Commitments Expiring After One Year	[1],[2]	139,160	132,096
Total Off-balance Sheet Commitments	[1],[2]	10,136,596	5,501,797
Value of the guarantees related to standby letters of credit		1,400	1,100
Commitments of unused lines of credit - advances [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[2],[3]	1,114,335	1,095,844
Off-balance-sheet Commitments Expiring After One Year	[2],[3]	0	0
Total Off-balance Sheet Commitments	[2],[3]	$ 1,114,335	1,095,844
Commitments of unused lines of credit - advances [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Period for commitments for unused line-of-credit advances		12 months
Commitments to make additional advances [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[2]	$ 211,367	40,917
Off-balance-sheet Commitments Expiring After One Year	[2]	48,302	66,318
Total Off-balance Sheet Commitments	[2]	259,669	107,235
Unsettled CO bonds, at par [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[2]	445,000	260,000
Off-balance-sheet Commitments Expiring After One Year	[2]	0	0
Total Off-balance Sheet Commitments	[2]	445,000	260,000
Unsettled CO discount notes, at par [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[2]	1,336,070	0
Off-balance-sheet Commitments Expiring After One Year	[2]	0	0
Total Off-balance Sheet Commitments	[2]	1,336,070	0
Standby Letters of Credit Issuance Commitments [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year		39,900	16,100
Off-balance-sheet Commitments Expiring After One Year			125
Mortgage Receivable [Member] | Commitments to invest in mortgage loans [Member]
Loss Contingencies [Line Items]
Off-balance-sheet Commitments Expiring Within One Year	[2]	6,864	3,164
Off-balance-sheet Commitments Expiring After One Year	[2]	0	0
Total Off-balance Sheet Commitments	[2]	$ 6,864	$ 3,164
[1]The amount of standby letters of credit outstanding excludes commitments to issue standby letters of credit that expire within one year. At June 30, 2022, and December 31, 2021, these amounts totaled $39.9 million and $16.1 million, respectively. Also excluded are commitments to issue standby letters of credit that expire after one year totaling $125 thousand at December 31, 2021.[2]We have determined that it is unnecessary to record any liability for credit losses on these agreements.[3]Commitments for unused line-of-credit advances are generally for periods of up to 12 months. Since many of these commitments are not expected to be drawn upon, the total commitment amount does not necessarily indicate future liquidity requirements.

Transactions with Shareholder_2

Transactions with Shareholders (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Transactions with Shareholders [Line Items]
Capital Stock Outstanding	$ 1,557,243	$ 953,638
Par Value of Advances	30,477,858	12,347,705
Total Accrued Interest Receivable	85,367	68,360
Citizens Bank, N.A. [Member]
Transactions with Shareholders [Line Items]
Capital Stock Outstanding	$ 504,748
Percent of Total Capital Stock	32.20%
Par Value of Advances	$ 12,019,143
Percentage of Total Par Value of Advances	39.40%
Total Accrued Interest Receivable	$ 7,275
Percent of Total Accrued Interest Receivable on Advances	22.60%
Directors' Financial Institutions [Member]
Transactions with Shareholders [Line Items]
Capital Stock Outstanding	$ 517,080	$ 48,104
Percent of Total Capital Stock	33%	5%
Par Value of Advances	$ 12,191,403	$ 416,542
Percentage of Total Par Value of Advances	40%	3.40%
Total Accrued Interest Receivable	$ 7,376	$ 466
Percent of Total Accrued Interest Receivable on Advances	22.90%	2.80%
Minimum [Member]
Transactions with Shareholders [Line Items]
Definition of shareholder concentration, minimum percent	10%

Subsequent Events (Details)

Subsequent Events (Details) - Common Class B [Member] - Subsequent Event [Member] - USD ($) $ in Millions	Aug. 02, 2022	Jul. 22, 2022
Subsequent Event [Line Items]
Annualized rate of cash dividend		3.72%
Dividend, including dividends on mandatorily redeemable capital stock	$ 11.5