10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2023

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                                    to                                   

Commission File Number: 000-51395

FEDERAL HOME LOAN BANK OF PITTSBURGH

(Exact name of registrant as specified in its charter) 

Federally Chartered Corporation		25-6001324
(State or other jurisdiction of incorporation or organization)		(IRS Employer Identification No.)
601 Grant Street
Pittsburgh,	PA	15219
(Address of principal executive offices)		(Zip Code)

412 288-3400 

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
—	—	—

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  [x]Yes []No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).  [x] Yes [] No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

o	Large accelerated filer	o	Accelerated filer	o	Emerging growth company
x	Non-accelerated filer	o	Smaller reporting company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. []

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).☐ Yes ☒ No

There were 39,461,885 shares of common stock with a par value of $100 per share outstanding at October 31, 2023.

FEDERAL HOME LOAN BANK OF PITTSBURGH

TABLE OF CONTENTS

Part I - FINANCIAL INFORMATION	1
Item 1: Financial Statements (unaudited)	37
Notes to Financial Statements (unaudited)	43
Item 2: Management's Discussion and Analysis of Financial Condition and Results of Operations	1
Risk Management	23
Item 3: Quantitative and Qualitative Disclosures about Market Risk	76
Item 4: Controls and Procedures	76
Part II - OTHER INFORMATION	76
Item 1: Legal Proceedings	76
Item 1A: Risk Factors	76
Item 2: Unregistered Sales of Equity Securities and Use of Proceeds	76
Item 3: Defaults upon Senior Securities	76
Item 4: Mine Safety Disclosures	76
Item 5: Other Information	76
Item 6: Exhibits	77
Signatures	77

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PART I - FINANCIAL INFORMATION

Item 2: Management's Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Information

Statements contained in this Form 10-Q, including statements describing the objectives, projections, estimates, or predictions of the future of the Federal Home Loan Bank of Pittsburgh (the Bank or FHLBank), may be “forward-looking statements.” These statements may use forward-looking terms, such as “anticipates,” “believes,” “could,” “estimates,” “may,” “should,” “will,” or their negatives or other variations on these terms. The Bank cautions that, by their nature, forward-looking statements involve risk or uncertainty and that actual results could differ materially from those expressed or implied in these forward-looking statements or could affect the extent to which a particular objective, projection, estimate, or prediction is realized. These forward-looking statements involve risks and uncertainties including, but not limited to, the following: economic and market conditions, including, but not limited to, real estate, credit and mortgage markets; volatility of market prices, rates, and indices related to financial instruments; including but not limited to, investments and contracts; the occurrence of man-made or natural disasters, endemics, global pandemics, conflicts or terrorist attacks or other geopolitical events; political, legislative, regulatory, litigation, or judicial events or actions, including those relating to environmental, social, and governance matters; risks related to mortgage-backed securities (MBS); changes in the assumptions used to estimate credit losses; changes in the Bank’s capital structure; changes in the Bank’s capital requirements; changes in expectations regarding the Bank’s payment of dividends; membership changes; changes in the demand by Bank members for Bank advances; an increase in advance prepayments; competitive forces, including the availability of other sources of funding for Bank members; changes in investor demand for consolidated obligations and/or the terms of interest rate exchange agreements and similar agreements; disruptions in the capital markets; changes in the Federal Home Loan Bank (FHLBanks) System’s debt rating or the Bank’s rating; the ability of the Bank to introduce new products and services to meet market demand and to manage successfully the risks associated with new products and services; the ability of each of the other FHLBanks to repay the principal and interest on consolidated obligations for which it is the primary obligor and with respect to which the Bank has joint and several liability; applicable Bank policy requirements for retained earnings and the ratio of the market value of equity to par value of capital stock; the Bank’s ability to maintain adequate capital levels (including meeting applicable regulatory capital requirements); business and capital plan adjustments and amendments; technology and cyber-security risks; and timing and volume of market activity. Forward-looking statements in this Form 10-Q should not be relied on as representing the Bank’s expectations or assumptions as of any time subsequent to the time this Form 10-Q is filed with the Securities and Exchange Commission. Forward looking statements speak only as of the date made and the Bank has no obligation, and does not undertake publicly, to update or revise any forward-looking statement for any reason.

This Management's Discussion and Analysis (MD&A) should be read in conjunction with the Bank's unaudited interim financial statements and notes and any Risk Factors included in Part II, Item 1A of this Form 10-Q and all risks and uncertainties addressed throughout this report, as well as the Bank's 2022 Form 10-K (2022 Form 10-K), including Risk Factors included in Part I, Item 1A of that report. Information on the Bank's websites referred to in this Form 10-Q is not incorporated in, or a part of, this Form 10-Q.

Executive Summary

Overview. The Bank's financial condition and results of operations are influenced by global and national economies, local economies within its three-state district, and the conditions in the financial, housing and credit markets, all of which impact the interest rate environment.

The interest rate environment significantly impacts the Bank's profitability. Net interest income is affected by several external factors, including market interest rate levels and volatility, credit spreads and the general state of the economy. To manage interest rate risk in connection with advances and debt, the Bank executes interest-rate derivatives. Short-term interest rates also directly affect the Bank's earnings on invested capital. Finally, the Bank's mortgage-related assets make it sensitive to changes in mortgage rates. The Bank earns relatively narrow spreads between yields on assets (particularly advances, its largest asset) and the rates paid on corresponding liabilities.

The Bank's earnings are affected not only by rising or falling interest rates but also by the particular path and volatility of changes in market interest rates and the prevailing shape of the yield curve. The flattening of the yield curve tends to compress the Bank's net interest margin, while steepening of the curve offers better opportunities to purchase assets with wider net interest spreads. The performance of the Bank's mortgage asset portfolios is particularly affected by shifts in the 10-year maturity range of the yield curve, which is the point that heavily influences mortgage rates and potential refinancings. Yield

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curve shape can also influence the pace at which borrowers refinance or prepay their existing loans, as borrowers may select shorter-duration mortgage products.

Elevated inflation and resilient U.S. economic data has caused the Federal Reserve Board (Federal Reserve) to signal higher rates for longer, resulting in an increase in U.S. Treasury yields. The Federal Reserve raised the Federal funds target rate during its July 2023 meeting from a range of 5.00-5.25% to 5.25-5.50% and held rates at its September 2023 meeting. Longer-term FHLBanks debt spreads relative to U.S. Treasuries tightened during the quarter due to investors reassessing a strong U.S. economy and concerns surrounding increasing U.S. Treasury supply.

Results of Operations. The Bank's net income for the third quarter of 2023 totaled $156.1 million, compared to $74.4 million for the third quarter of 2022. The $81.7 million increase was driven primarily by higher net interest income. Higher net interest income was primarily driven by significantly higher short-term interest rates and significantly higher average balances. The net interest margin was 69 basis points in the third quarter of 2023 and 60 basis points for the third quarter of 2022. The increase in net interest margin was primarily due to the impact that the increase in short-term interest rates had on non-interest bearing funds.

For the nine months ended September 30, 2023, the Bank’s net income totaled $455.1 million, compared to $130.6 million for the same prior-year period. The $324.5 million increase was driven primarily by higher net interest income and valuation changes in the derivatives and trading portfolios. The net interest margin was 66 basis points for the first nine months of 2023 and 53 basis points for the first nine months of 2022. The increase in net interest margin was primarily due to the impact that the increase in short-term interest rates had on non-interest bearing funds.

In addition to statutory Affordable Housing Program (AHP) assessments under the FHLBank Act, the FHLBanks have stated in their public comment letter to the Federal Housing Agency (Finance Agency or FHFA) that they are either already making or will make voluntary contributions of 5% of earnings in support of community investment activities. In 2023, the Bank intends to make voluntary contributions equal to 5% of prior year's pre-assessment net income to its existing suite of voluntary community investment products. Increasing its voluntary contributions to 5% of prior year's pre-assessment net income will not be significant to the Bank's financial condition or results of operations. For additional information on the Bank's Community Investment Products, refer to Community Investment Products in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations of the Bank's 2022 Form 10-K.

Financial Condition. Advances. Advances totaled $76.2 billion at September 30, 2023, an increase of $7.3 billion compared to $68.9 billion at December 31, 2022. In addition, the par value of advances that had a remaining maturity of more than one year decreased to 53% at September 30, 2023 compared to 59% at December 31, 2022. The increase in advances was primarily driven by members continuing to optimize liquidity and risk management practices, as well as a persistently high level of member competition for deposits following Federal Reserve actions to increase short-term interest rates. These factors have led to continued use of advances by depository members as a form of balance sheet liquidity. Although advance levels increased, it is not uncommon for the Bank to experience variances in the overall advance portfolio driven primarily by changes in member needs.

The ability to grow and/or maintain the advance portfolio is affected by, among other things, the following: (1) the liquidity demands of the Bank's borrowers; (2) the composition of the Bank's membership; (3) members' regulatory requirements; (4) current and future credit market conditions; (5) housing market trends; (6) the shape of the yield curve and (7) advance pricing.

Liquidity Investments. The Bank maintains liquidity to meet member borrowing needs and regulatory standards. The liquidity investment portfolio is comprised of cash, interest-bearing deposits, Federal funds sold, securities purchased under agreements to resell, and U.S. Treasury obligations classified as trading or available-for-sale (AFS). At September 30, 2023, the Bank held $13.5 billion of liquid assets compared to $14.0 billion at December 31, 2022. The $0.5 billion decrease in liquid assets was driven by normal portfolio management.

Investments. The Bank's investment portfolio, excluding those investments included in the liquidity portfolio, is comprised of trading, AFS and HTM investments. The investments must meet the Bank's risk guidelines and certain other requirements, such as yield. The Bank's investment portfolio totaled $11.6 billion at September 30, 2023 and $8.1 billion at December 31, 2022. During the first nine months of 2023, the Bank was able to grow its MBS portfolio due to the combination of increased capacity resulting from increased capital and widening of mortgage spreads.

Consolidated Obligations. The Bank's consolidated obligations totaled $99.4 billion at September 30, 2023, an increase of $9.2 billion from December 31, 2022. At September 30, 2023, bonds represented 87% of the Bank's consolidated obligations, compared with 63% at December 31, 2022. Discount notes represented 13% of the Bank's consolidated obligations at September 30, 2023 compared with 37% at year-end 2022. The overall increase in consolidated obligations outstanding is

2

consistent with the increase in advance balances. The funding mix shifted towards callable bonds as the Bank capitalized on favorable funding spreads.

Capital Position and Regulatory Requirements. Total capital at September 30, 2023 was $5.5 billion, compared to $4.9 billion at December 31, 2022. The increase was primarily due to increased capital stock as a result of higher advances. Total retained earnings at September 30, 2023 were $1.8 billion, compared with $1.5 billion at December 31, 2022. Accumulated other comprehensive income (loss) (AOCI) was $(115.7) million at September 30, 2023, compared with $(66.5) million at December 31, 2022. This was driven by decreases in the fair values of securities within the AFS portfolio.

In October 2023, the Bank paid quarterly dividends of 8.25% annualized on activity stock and 5.35% annualized on membership stock These dividends are calculated on stockholders' average balances during the period of July 1,2023 to September 30, 2023 and credited to stockholders accounts on October 27, 2023. For additional information on quarterly dividends, see Note 7 -Capital in this Form 10-Q.

The dividend rates demonstrate that the Bank continues to return value to its member shareholders. Looking forward, market and business conditions can impact the Bank's overall performance, as well as the levels of future dividends. Management's intent is to continue to provide meaningful shareholder return; future dividend rates may not correlate directly with the pace and direction of interest rate changes.

The Bank met all of its capital requirements as of September 30, 2023, and in the Finance Agency's most recent determination, as of June 30, 2023, the Bank was deemed "adequately capitalized."

3

Earnings Performance

    The following is Management Discussion and Analysis of the Bank's earnings performance for the three and nine months ended September 30, 2023, which should be read in conjunction with the Bank's unaudited interim financial statements included in this Form 10-Q as well as the audited financial statements included in Item 8. Financial Statements and Supplementary Data in the Bank's 2022 Form 10-K.

Summary of Financial Results

Net Income and Return on Average Equity

FHLBank’s net income totaled $156.1 million for the third quarter of 2023, compared to $74.4 million for the third quarter of 2022. The $81.7 million increase in net income was driven primarily by the following:

▪Net interest income was $189.3 million for the third quarter of 2023, an increase of $83.4 million from $105.8 million during the same prior-year period.

–Interest income was $1,500.3 million for the third quarter of 2023, compared to $447.6 million in the same prior-year period. This increase was the result of higher yields driven by significantly higher short-term interest rates and significantly higher average advance balances.

–Interest expense was $1,311.0 million for the third quarter of 2023, compared to $341.7 million in the same prior-year period. This increase was the result of significantly higher short-term interest rates and significantly higher average consolidated obligations.

▪Noninterest income was $14.0 million for the third quarter of 2023 compared to $4.9 million in the same prior-year period. This $9.2 million increase was due primarily to: (1) valuation changes in FHLBank's derivative and trading security portfolios as a result of market volatility and (2) higher letter of credit fees earned.

▪Other expense was $27.9 million for the third quarter of 2023 compared to $24.8 million in the same prior-year period, an increase of $3.1 million. This increase reflected higher compensation and benefits driven by higher headcount, increased technology-related costs, higher assessed expenses from the Finance Agency and the Office of Finance, and market value changes of deferred compensation agreements, partially offset by an excise tax refund in 2023, and lower depreciation expense.

▪Third quarter 2023 performance allowed FHLBank to allocate $17.4 million to AHP.

FHLBank's net income totaled $455.1 million for the nine months ended September 30, 2023, compared to $130.6 million for the same prior-year period. The $324.5 million increase in net income was driven primarily by the following:

▪Net interest income was $546.7 million for the nine months ended September 30, 2023, an increase of $329.7 million from $217.0 million during the same prior-year period.

–Interest income was $4,295.6 million for the nine months ended September 30, 2023, compared to $724.6 million in the same prior-year period. This increase was the result of higher yields driven by significantly higher short-term interest rates and significantly higher average advance balances.

–Interest expense was $3,748.9 million for the nine months ended September 30, 2023, compared to $507.6 million in the same prior-year period. This increase was the result of significantly higher short-term interest rates and significantly higher average consolidated obligations.

▪Noninterest income was $44.8 million for the nine months ended September 30, 2023, compared to $5.4 million in the same prior-year period. This $39.5 million increase was due primarily to: (1) valuation changes in FHLBank's derivative and trading security portfolios, as a result of market volatility and (2) higher letter of credit fees earned.

▪Other expense was $81.6 million for the nine months ended September 30, 2023, compared to $71.7 million in the same prior-year period, an increase of $9.9 million. This increase reflected higher compensation and benefits driven by higher headcount, increased technology-related costs, higher assessed expenses from the Finance Agency and the Office of Finance, and market value changes of deferred compensation agreements, partially offset by a smaller discretionary pension contribution, an excise tax refund in 2023, and lower depreciation expense.

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▪Performance for the nine months ended September 30, 2023 allowed FHLBank to allocate $50.8 million to AHP.

The Bank’s return on average equity for the three and nine months ended September 30, 2023 was 11.44% and 11.14%. The Bank’s return on average equity for the three and nine months ended September 30, 2022 was 7.73% and 5.36%.

5

Net Interest Income

Average Balances and Interest Yields/Rates Paid. The following table summarizes the average balances, yields or rates paid, and net interest margin on interest-earning assets and interest-bearing liabilities for the three and nine months ended September 30, 2023 and 2022.

	Three months ended September 30,
	2023					2022
(dollars in millions)	Average Balance		Interest Income/ Expense		Avg. Yield/ Rate (%)	Average Balance		Interest Income/ Expense		Avg. Yield/ Rate (%)
Assets:
Securities purchased under agreements to resell	$	6,674.4	$	89.2	5.30	$	2,732.3	$	15.6	2.26
Federal funds sold	3,332.4		44.6		5.31	4,898.3		27.2		2.20
Interest-bearing deposits(1)	4,109.7		54.9		5.29	2,121.4		11.6		2.18
Investment securities(2)	14,611.3		203.1		5.51	13,352.9		88.0		2.62
Advances(3)	75,486.5		1,071.0		5.63	42,424.8		271.0		2.53
Mortgage loans held for portfolio(4)	4,629.0		37.5		3.22	4,627.2		34.1		2.93
Total interest-earning assets	108,843.3		1,500.3		5.47	70,156.9		447.5		2.53
Other assets	1,324.8					545.3
Total assets	$	110,168.1				$	70,702.2
Liabilities and capital:
Deposits(1)	$	780.4	$	10.3	5.26	$	723.9	$	3.9	2.15
Consolidated obligation discount notes	16,899.0		220.2		5.17	28,149.8		142.5		2.01
Consolidated obligation bonds	84,592.9		1,079.9		5.06	36,646.3		194.4		2.10
Other borrowings	29.1		0.6		8.19	97.1		0.9		3.54
Total interest-bearing liabilities	102,301.4		1,311.0		5.08	65,617.1		341.7		2.07
Other liabilities	2,450.0					1,264.1
Total capital	5,416.7					3,821.0
Total liabilities and capital	$	110,168.1				$	70,702.2
Net interest spread					0.39					0.46
Impact of noninterest-bearing funds					0.30					0.14
Net interest income/net interest margin(5)			$	189.3	0.69			$	105.8	0.60

Notes:

(1) Average balances of deposits (assets and liabilities) include cash collateral received from/paid to counterparties which is reflected in the Statements of Condition as derivative assets/liabilities.

(2) Investment securities include trading, AFS and HTM securities. The average balances of AFS and HTM are reflected at amortized cost.

(3) Interest on Advances includes prepayment fees of $0.0 million and $0.0 million in 2023 and 2022, respectively.

(4) Nonaccrual mortgage loans are included in average balances in determining the average rate.

(5) Net interest margin is net interest income before provision (reversal) for credit losses as a percentage of average interest-earning assets.

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	Nine months ended September 30,
	2023					2022
(dollars in millions)	Average Balance		Interest Income/ Expense		Avg. Yield/ Rate (%)	Average Balance		Interest Income/ Expense		Avg. Yield/ Rate (%)
Assets:
Securities purchased under agreements to resell	$	5,825.5	$	218.0	5.00	$	1,898.8	$	20.3	1.43
Federal funds sold	4,046.2		148.9		4.92	4,378.9		36.4		1.11
Interest-bearing deposits(1)	4,008.9		150.6		5.02	1,530.1		15.0		1.31
Investment securities(2)	14,176.5		548.4		5.17	13,490.8		171.0		1.69
Advances(3)	78,818.6		3,120.9		5.29	28,384.5		382.0		1.80
Mortgage loans held for portfolio(4)	4,588.7		108.8		3.17	4,672.4		99.9		2.86
Total interest-earning assets	111,464.4		4,295.6		5.15	54,355.5		724.6		1.78
Other assets	1,439.8					753.4
Total assets	$	112,904.2				$	55,108.9
Liabilities and capital:
Deposits(1)	$	664.3	$	24.5	4.94	$	867.0	$	5.6	0.86
Consolidated obligation discount notes	26,220.4		943.6		4.81	20,775.9		181.7		1.17
Consolidated obligation bonds	78,073.5		2,779.0		4.76	29,114.5		318.8		1.46
Other borrowings	31.7		1.8		7.72	47.7		1.5		4.20
Total interest-bearing liabilities	104,989.9		3,748.9		4.77	50,805.1		507.6		1.34
Other liabilities	2,450.9					1,044.2
Total capital	5,463.4					3,259.6
Total liabilities and capital	$	112,904.2				$	55,108.9
Net interest spread					0.38					0.44
Impact of noninterest-bearing funds					0.28					0.09
Net interest income/net interest margin(5)			$	546.7	0.66			$	217.0	0.53

Notes:

(1) Average balances of deposits (assets and liabilities) include cash collateral received from/paid to counterparties which is reflected in the Statements of Condition as derivative assets/liabilities.

(2) Investment securities include trading, AFS and HTM securities. The average balances of AFS and HTM are reflected at amortized cost.

(3) Interest on Advances includes prepayment fees of $0.1 million and $1.9 million in 2023 and 2022, respectively.

(4) Nonaccrual mortgage loans are included in average balances in determining the average rate.

(5) Net interest margin is net interest income before provision (reversal) for credit losses as a percentage of average interest-earning assets.

The Bank’s business model is designed to protect the net interest spread earned by the Bank and withstand fluctuations in both the level of interest rates and volume of business. Although interest income and interest expense increased significantly, changes in balance sheet composition resulted in the net interest spread decreasing in the third quarter of 2023 to 39 basis points compared to 46 basis points over the same prior year period. Net interest spread also decreased in the first nine months of 2023 to 38 basis points compared to 44 basis points over the same prior year period. Lower spread advances make up a much larger percentage of the balance sheet than they did a year ago.

Overall, net interest margin increased 9 basis points to 69 basis points for the third quarter of 2023, compared to 60 bps in the third quarter of 2022 and increased by 13 basis point to 66 basis points during the first nine months of 2023, compared to 53 basis points during first nine months of 2022. These increases were due to the impact of noninterest-bearing funds due to higher short-term interest rates.

7

Rate/Volume Analysis. Changes in both volume and interest rates influence changes in net interest income and net interest margin. The following table summarizes changes in interest income and interest expense between the three and nine months ended September 30, 2023 and 2022.

	Increase (Decrease) in Interest Income/Expense Due to Changes in Rate/Volume 2023 compared to 2022
	Three months ended September 30,						Nine months ended September 30,
(in millions)	Volume		Rate		Total		Volume		Rate		Total
Securities purchased under agreements to resell	$	38.1	$	35.5	$	73.6	$	89.5	$	108.2	$	197.7
Federal funds sold	(11.0)		28.4		17.4		(2.9)		115.4		112.5
Interest-bearing deposits	17.1		26.2		43.3		49.4		86.2		135.6
Investment securities	9.0		106.1		115.1		9.1		368.3		377.4
Advances	311.7		488.3		800.0		1,308.6		1,430.3		2,738.9
Mortgage loans held for portfolio	—		3.4		3.4		(1.8)		10.7		8.9
Total interest-earning assets	$	364.9	$	687.9	$	1,052.8	$	1,451.9	$	2,119.1	$	3,571.0
Deposits	$	0.3	$	6.1	$	6.4	$	(1.6)	$	20.5	$	18.9
Consolidated obligation discount notes	(75.1)		152.8		77.7		59.1		702.8		761.9
Consolidated obligation bonds	426.8		458.7		885.5		1,052.2		1,408.0		2,460.2
Other borrowings	(0.9)		0.6		(0.3)		(0.6)		0.9		0.3
Total interest-bearing liabilities	$	351.1	$	618.2	$	969.3	$	1,109.1	$	2,132.2	$	3,241.3
Total increase (decrease) in net interest income	$	13.8	$	69.7	$	83.5	$	342.8	$	(13.1)	$	329.7

Interest income increased significantly in both year-over-year and quarter-over-quarter comparisons. A significant increase in interest rates, coupled with a significant increase in advance volumes drove interest income higher as compared to 2022. The increase in advances was primarily driven by members continuing to optimize liquidity and risk management practices, as well as a persistently high level of member competition for deposits following Federal Reserve actions to increase short-term interest rates to curb inflation. These factors have led to continued use of advances by depository members as a form of balance sheet liquidity.Interest income on the mortgage loans held for portfolio was not impacted as much by the rise in interest rates because it is a fixed rate portfolio. MPF experienced a reduction in originations due to the higher interest rate environment.

Interest expense increased significantly in both year-over-year and quarter-over-quarter comparisons as well driven by higher rates paid on consolidated obligations brought on by increases in short-term interest rates. Average balances of consolidated obligations increased significantly through the first nine months of 2023 consistent with the increase in average assets.

8

    Derivative Effects on Net Interest Income. The following tables quantify the effects of the Bank's derivative activities on net interest income for the three and nine months ended September 30, 2023 and 2022.

Three months ended September 30, 2023
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Total
Amortization/accretion of hedging activities in net interest income	$	0.1	$	(0.1)	$	(0.1)	$	—	$	—	$	(0.1)
Gains (losses) on designated fair value hedges	—		(0.2)		—		(0.4)		2.3		1.7
Net interest settlements included in net interest income	91.2		47.4		—		(179.9)		(4.7)		(46.0)
Total effect on net interest income	$	91.3	$	47.1	$	(0.1)	$	(180.3)	$	(2.4)	$	(44.4)
Nine months ended September 30, 2023
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Total
Amortization/accretion of hedging activities in net interest income	$	0.2	$	(0.1)	$	(0.4)	$	—	$	—	$	(0.3)
Gains (losses) on designated fair value hedges	—		0.5		—		(0.4)		(2.0)		(1.9)
Net interest settlements included in net interest income	226.0		138.9		—		(450.5)		(6.8)		(92.4)
Total effect on net interest income	$	226.2	$	139.3	$	(0.4)	$	(450.9)	$	(8.8)	$	(94.6)

Three months ended September 30, 2022
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Total
Amortization/accretion of hedging activities in net interest income	$	—	$	—	$	(0.3)	$	—	$	—	$	(0.3)
Gains (losses) on designated fair value hedges	—		1.2		—		0.6		0.1		1.9
Net interest settlements included in net interest income	7.5		13.9		—		(21.0)		1.9		2.3
Total effect on net interest income	$	7.5	$	15.1	$	(0.3)	$	(20.4)	$	2.0	$	3.9
Nine months ended September 30, 2022
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Total
Amortization/accretion of hedging activities in net interest income	$	—	$	(0.1)	$	(1.2)	$	0.1	$	—	$	(1.2)
Gains (losses) on designated fair value hedges	(0.1)		3.2		—		0.5		0.1		$	3.7
Net interest settlements included in net interest income	(41.8)		(5.4)		—		31.1		1.9		$	(14.2)
Total effect on net interest income	$	(41.9)	$	(2.3)	$	(1.2)	$	31.7	$	2.0	$	(11.7)

The Bank generally uses interest rate swaps to hedge a portion of fixed rate assets and fixed rate bonds which convert the interest rates on those instruments from a fixed rate to a variable rate. The purpose of this strategy is to protect the net interest spread against adverse interest rate changes. Using derivatives to convert interest rates from fixed to variable can increase or decrease net interest income. The variances in the derivative impacts from period to period are driven by the change in the average variable rate, the timing of interest rate resets and the average hedged portfolio balances outstanding during any given period. The Bank uses derivatives to hedge the fair market value changes attributable to the change in the benchmark interest rates.

In addition, the Bank uses many different funding and hedging strategies. These strategies involve closely match-funding bullet advances with bullet debt. This is designed in part to avoid the use of derivatives where prudent and reduce the Bank's reliance on short-term funding.

9

Provision for Credit Losses. The provision for credit losses in the third quarter of 2023 was $1.9 million compared with a provision of $3.2 million in the third quarter of 2022. For the nine months ended September 30, 2023, the provision for credit losses was $4.0 million compared with a provision of $5.4 million for the same prior-year period. The provision for the third quarter of 2023 was driven by private label MBS classified as AFS due to a decline in market values, and increased delinquent Banking on Business (BOB) loan balances. The provisions for the third quarter of 2022 and the year-to-date 2023 and 2022 periods reflected the impact of declines in market values of the Bank's private label MBS classified as AFS.

Noninterest Income

	Three months ended September 30,				Nine months ended September 30,
(in millions)	2023		2022		2023		2022
Net gains (losses) on investment securities	$	(2.4)	$	(8.3)	$	(1.1)	$	(28.2)
Net gains (losses) on derivatives	7.3		6.6		21.2		15.3
Standby letters of credit fees	8.1		6.5		22.2		17.8
Other, net	1.0		0.1		2.5		0.5
Total noninterest income (loss)	$	14.0	$	4.9	$	44.8	$	5.4

The Bank's change in total noninterest income for both three and nine month periods ended September 30, 2023 compared to the same prior year periods was due primarily to: (1) valuation changes in the Bank's derivative and trading security portfolios as a result of market volatility and (2) higher letter of credit fees earned.

Derivatives and Hedging Activities. The Bank enters into interest rate swaps, TBAs, interest rate caps and floors and swaption agreements, referred to as derivatives transactions. The Bank enters into derivatives transactions to offset all or portions of the financial risk exposures inherent in its member lending, investment and funding activities. Derivatives are recorded on the balance sheet at fair value. Changes in derivatives' fair values are recorded in the Statements of Income.

Economic hedges address specific risks inherent in the Bank's balance sheet, but either they do not qualify for hedge accounting or the Bank does not elect to apply hedge accounting. As a result, income recognition on the derivatives in economic hedges may vary considerably compared to the timing of income recognition on the underlying asset or liability. The Bank does not enter into derivatives for speculative purposes nor does it have any cash flow hedges.

Regardless of the hedge strategy employed, the Bank's predominant hedging instrument is an interest rate swap. At the time of inception, the fair market value of an interest rate swap generally equals or is close to zero. Notwithstanding the exchange of interest payments made during the life of the swap, which are recorded as either interest income/expense or as a gain (loss) on derivatives, depending upon the accounting classification of the hedging instrument, the fair value of an interest rate swap returns to zero at the end of its contractual term. Therefore, although the fair value of an interest rate swap is likely to change over the course of its full term, upon maturity any unrealized gains and losses generally net to zero.

10

The following tables detail the net effect of economic derivatives on noninterest income for the three and nine months ended September 30, 2023 and 2022.

	Three months ended September 30, 2023
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Other		Total
Net gains (losses) on derivatives:
Gains (losses) on derivatives not receiving hedge accounting, including net interest settlements	$	6.3	$	6.3	$	2.6	$	(7.3)	$	—	$	—	$	7.9
Other(1)	—		—		—		—		—		(0.6)		(0.6)
Total net gains (losses) on derivatives	$	6.3	$	6.3	$	2.6	$	(7.3)	$	—	$	(0.6)	$	7.3
	Nine months ended September 30, 2023
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Other		Total
Net gains (losses) on derivatives:
Gains (losses) on derivatives not receiving hedge accounting, including net interest settlements	$	20.1	$	13.9	$	2.6	$	(14.2)	$	0.1	$	—	$	22.5
Other (1)	—		—		—		—		—		(1.3)		(1.3)
Total net gains (losses) on derivatives	$	20.1	$	13.9	$	2.6	$	(14.2)	$	0.1	$	(1.3)	$	21.2

	Three months ended September 30, 2022
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Other		Total
Net gains (losses) on derivatives:
Gains (losses) on derivatives not receiving hedge accounting, including net interest settlements	$	4.9	$	14.0	$	0.8	$	(9.9)	$	(3.0)	$	—	$	6.8
Other (1)	—		—		—		—		—		(0.1)		(0.1)
Total net gains (losses) on derivatives	$	4.9	$	14.0	$	0.8	$	(9.9)	$	(3.0)	$	(0.1)	$	6.7
	Nine months ended September 30, 2022
(in millions)	Advances		Investments		Mortgage Loans		Bonds		Discount Notes		Other		Total
Net gains (losses) on derivatives:
Gains (losses) on derivatives not receiving hedge accounting, including net interest settlements	$	8.1	$	40.3	$	1.6	$	(27.2)	$	(6.9)	$	—	$	15.9
Other (1)	—		—		—		—		—		(0.5)		(0.5)
Total net gains (losses) on derivatives	$	8.1	$	40.3	$	1.6	$	(27.2)	$	(6.9)	$	(0.5)	$	15.4

Notes:

(1)Represents the price alignment amount on derivatives for which variation margin is characterized as a daily settled contract.

Derivatives not receiving hedge accounting. For derivatives not receiving hedge accounting (i.e., economic hedges and mortgage delivery commitments), the Bank includes the net interest settlements and the fair value changes in the "Net gains (losses) on derivatives" financial statement line item. For economic hedges, the Bank recorded net gains of $7.9 million in the third quarter of 2023 compared to net gains of $6.8 million for the third quarter of 2022. The net gains observed during the third quarter of 2023 were primarily due to an increase in market value on the Bank’s asset swaps, partially offset by losses on the Bank's liability swaps, resulting from an increase in interest rates in the third quarter of 2023. For the nine months ended September 30, 2023, the Bank recorded net gains of $22.5 million compared to net gains of $15.9 million for the nine months ended September 30, 2022. The net gains observed during the nine months ended September 30, 2023 were primarily due to an increase in market value on the Bank’s asset swaps, partially offset by losses on the Bank's liability swaps, resulting from an increase in interest rates in the first nine months of 2023. The total notional amount of economic hedges, which includes mortgage delivery commitments was $3.7 billion at September 30, 2023 and $3.2 billion at December 31, 2022.

11

Other Expense

The Bank's total other expense increased $3.1 million to $27.9 million for the third quarter of 2023, compared with the same prior-year period. This increase reflected higher compensation and benefits driven by higher headcount, increased technology-related costs, higher assessed expenses from the Finance Agency and the Office of Finance, and market value changes of deferred compensation agreements, partially offset by an excise tax refund in 2023, and lower depreciation expense. Total other expense for the first nine months of 2023 increased $9.9 million to $81.6 million from the same prior year period. This increase reflected higher compensation and benefits driven by higher headcount, increased technology-related costs, higher assessed expenses from the Finance Agency and the Office of Finance, and market value changes of deferred compensation agreements, partially offset by a smaller discretionary pension contribution, an excise tax refund in 2023, and lower depreciation expense.

Financial Condition

    The following should be read in conjunction with the Bank's unaudited interim financial statements in this Form 10-Q and the audited financial statements in the Bank's 2022 Form 10-K.

Assets

    Total assets were $106.9 billion at September 30, 2023, compared with $96.1 billion at December 31, 2022. The increase of $10.8 billion was primarily due to an increase in advances. Advances totaled $76.2 billion at September 30, 2023, an increase of $7.3 billion compared to $68.9 billion at December 31, 2022. The Bank's return on average assets for the three and nine months ended September 30, 2023 was 0.56% and 0.54%. The Bank's return on average assets for the three and nine months ended September 30, 2022 was 0.42% and 0.32%.

    The Bank's core mission activities include the issuance of advances and acquiring member assets through the MPF® Program. “Mortgage Partnership Finance” and “MPF” are registered trademarks of the Federal Home Loan Bank of Chicago. The core mission asset ratio, defined as the ratio of par amount of advances and MPF loans relative to consolidated obligations adjusted for certain U.S. Treasury securities using full year average balances, was 83.0% as of September 30, 2023 and 77.5% as of December 31, 2022. The increase in this ratio is primarily due to higher average advance balances.

    Advances. Advances (par) totaled $76.7 billion at September 30, 2023 compared to $69.2 billion at December 31, 2022. As of September 30, 2023, advances increased $7.5 billion compared with balances at December 31, 2022. The increase in advances was primarily driven by members continuing to optimize liquidity and risk management practices, as well as, a persistently high level of member competition for deposits following Federal Reserve actions to increase short-term interest rates. These factors have led to continued use of advances by depository members as a form of balance sheet liquidity. Although advance levels increased, it is not uncommon for FHLBank to experience variances in the overall advance portfolio driven primarily by changes in member needs. At September 30, 2023, the Bank had advances to 164 borrowing members, compared to 168 borrowing members at December 31, 2022. Advances outstanding to the Bank’s five largest borrowers totaled 78.5% of total advances as of September 30, 2023, and 78.5% at December 31, 2022. Fixed rate advances with a balance of $30.0 billion comprised 39.1% of the total par value of advances outstanding at September 30, 2023 compared to $30.8 billion comprising 44.0% at December 31, 2022.

12

The following table provides information on advances at par by redemption terms at September 30, 2023 and December 31, 2022.

(in millions)	September 30, 2023		December 31, 2022
Fixed-rate
Due in 1 year or less(1)	$	15,404.1	$	23,242.9
Due after 1 year through 3 years	9,847.3		5,116.8
Due after 3 years through 5 years	3,511.6		1,780.2
Due after 5 years through 15 years	79.5		54.7
Thereafter	74.7		74.8
Total par value	$	28,917.2	$	30,269.4
Fixed-rate, callable or prepayable(2)
Due in 1 year or less	$	250.0	$	—
Due after 1 year through 3 years	—		250.0
Total par value	$	250.0	$	250.0
Variable-rate
Due in 1 year or less(1)	$	20,289.1	$	5,247.6
Due after 1 year through 3 years	26,028.1		29,076.5
Due after 3 years through 5 years	10.0		4,010.0
Total par value	$	46,327.2	$	38,334.1
Variable-rate, callable or prepayable(2)
Due in 1 year or less	$	10.0	$	85.0
Due after 1 year through 3 years	380.0		40.0
Total par value	$	390.0	$	125.0
Other(3)
Due in 1 year or less	$	219.1	$	96.9
Due after 1 year through 3 years	406.3		74.3
Due after 3 years through 5 years	158.0		42.1
Due after 5 years through 15 years	25.9		36.4
Thereafter	—		0.7
Total par value	$	809.3	$	250.4
Total par balance	$	76,693.7	$	69,228.9

Notes:

(1) Includes overnight advances.

(2) Prepayable advances are those advances that may be contractually prepaid by the borrower on specified dates without incurring prepayment or termination fees.

(3) Includes fixed-rate amortizing/mortgage matched, convertible, and other advances.

The Bank had no putable advances at September 30, 2023 or December 31, 2022.

13

The following table provides a distribution of the number of members, categorized by individual member asset size (as reported quarterly), that had an outstanding advance balance during the nine months ended September 30, 2023 and 2022. Commercial Bank and Savings Institution members are classified by asset size as follows: Super-Regional (over $150 billion), Regional ($25 billion to $150 billion), Mid-size ($1.2 billion to $25 billion) and Community Financial Institutions (CFIs) (under $1.2 billion). Credit Union and Insurance members are classified separately.

Member Classification	September 30, 2023		September 30, 2022
Super-Regional	3		2
Regional	4		3
Mid-size	37		39
CFI	120		114
Credit Union	43		39
Insurance	18		23
Total borrowing members during the period	225		220
Total membership	280		284
Percentage of members borrowing during the period	80.4	%	77.5	%

The following table provides information at par on advances by member classification at September 30, 2023 and December 31, 2022.

(in millions)	September 30, 2023		December 31, 2022
Member Classification
Super-Regional	$	50,325.0	$	48,750.0
Regional	10,612.7		6,495.0
Mid-size	9,450.0		7,410.0
CFI	3,006.5		2,904.2
Credit Union	2,133.0		2,121.8
Insurance	638.3		1,001.7
Non-member	528.2		546.2
Total	$	76,693.7	$	69,228.9

See the “Credit and Counterparty Risk - TCE and Collateral” discussion in the Risk Management section of this Item 2 for further information on collateral policies and practices and details regarding eligible collateral, including amounts and percentages of eligible collateral securing member advances as of September 30, 2023.

    Allowance for Credit Losses (ACL) - Advances. The Bank evaluates its advances for an allowance for credit losses on a collective, or pooled basis unless an individual assessment is deemed necessary because the instruments do not possess similar risk characteristics. The Bank pools advances by member type. Based on the collateral held as security, the Bank's credit extension and collateral policies and repayment history on advances, including that the Bank has not incurred any credit losses since inception, the Bank has not recorded an ACL at September 30, 2023 or December 31, 2022. For additional information on the allowance methodology, see Note 3 - Advances in this Form 10-Q.

Mortgage Loans Held for Portfolio, Net. Mortgage loans held for portfolio, net of ACL, was $4.7 billion at September 30, 2023 and $4.6 billion at December 31, 2022.

The Bank places conventional mortgage loans that are 90 days or more delinquent on nonaccrual status. In addition, the Bank records cash payments received as a reduction of principal until the remaining principal amount due is expected to be collected and then as a recovery of any charge-off, if applicable, followed by the recording of interest income. However, government mortgage loans that are 90 days or more delinquent remain in accrual status due to government guarantees or insurance. The Bank may provide a loan modification to borrowers experiencing financial difficulty. Performing loan modifications are not placed on nonaccrual status.

Foregone interest represents income the Bank would have recorded if the loan was paying according to its contractual terms. Foregone interest was immaterial for the Bank's mortgage loans for both the nine months ended September 30, 2023 and September 30, 2022.

14

The Bank continues to accrue interest on its government-insured or -guaranteed mortgage loans after becoming 90 days or more delinquent. The amount of mortgage loans 90 days or more delinquent and still accruing interest was $1.7 million and $3.1 million at September 30, 2023 and December 31, 2022, respectively.

The performance of the mortgage loans in the Bank’s MPF Program was stable compared to December 31, 2022, and the MPF Original portfolio continues to outperform the market based on national delinquency statistics. As of September 30, 2023, the Bank’s seriously delinquent mortgage loans (90 days or more delinquent or in the process of foreclosure) represented 0.2% of the MPF Original portfolio, 1.1% of the MPF Plus portfolio, and 0.5% of the MPF 35 portfolio, compared with 0.3%, 1.2%, and 0.5%, respectively, at December 31, 2022.

    ACL - Conventional MPF. The Bank’s conventional mortgage loan portfolio is comprised of large groups of smaller-balance homogeneous loans made to borrowers of PFIs that are secured by residential real estate. Expected credit losses are evaluated based on either an individual or collective assessment of the loans, depending on whether the loans share similar risk characteristics. The Bank purchases government-guaranteed and/or insured and conventional fixed-rate residential mortgage loans. Because the credit risk on the government-guaranteed/insured loans is predominantly assumed by other entities, only conventional mortgage loans are evaluated for an ACL.

The Bank determines its ACL through consideration of various loan portfolio and collateral-related characteristics, including past performance, current conditions, and reasonable and supportable forecasts of economic conditions. To estimate credit losses, the Bank uses a third-party model which incorporates certain assumptions, including forecasted housing prices and interest rates, as well as historical borrower behavior experience. The estimate of the expected credit losses includes coverage of certain losses by primary mortgage insurance (PMI), if applicable. The Bank may incorporate a qualitative adjustment to the model results, if deemed appropriate, based on current market conditions or results. For loans determined to be collateral dependent, the Bank charges-off the estimated credit loss against the reserve. However, if the estimated loss can be recovered through credit enhancement (CE), a receivable is established, resulting in a net charge-off. The expected credit loss of a collateral dependent mortgage loan to determine the charge-off is equal to the difference between the amortized cost basis of the loan and the estimated fair value of the underlying collateral, less selling costs.

The Bank recognizes a recovery when expected credit losses, including credit losses charged-off for collateral dependent loans, are less than the amounts previously charged-off. Expected recoveries of prior charge-offs, if any, are included as a reduction to the ACL through the Bank's provision (reversal) for credit losses. The reduction to the ACL is partially offset by a reversal of expected CE, resulting in a net impact to the Bank's provision (reversal) for credit losses.

    The Bank's conventional MPF loans held for portfolio are required to be credit enhanced as determined through the use of a validated model so the risk of loss is limited to the losses within the Bank's risk tolerance. Credit losses on a mortgage loan may only be absorbed by the CE amount in the master commitment related to the loan. In addition, the CE structure of the MPF Program is designed such that initial losses on mortgage loans are incurred by the Bank up to an agreed upon amount, referred to as the First Loss Account (FLA). Additional eligible credit losses are covered by CE provided by PFIs (available CE) until exhausted. Certain losses incurred by the Bank on MPF 35 and MPF Plus can be recaptured by withholding fees paid to the PFI for its retention of credit risk. All additional losses are incurred by the Bank.

The following table presents the balance of the MPF CE structure at September 30, 2023 and December 31, 2022.

	September 30, 2023				December 31, 2022
(in millions)	FLA		Available CE		FLA		Available CE
MPF Original	$	8.4	$	74.3	$	8.1	$	72.2
MPF 35	18.5		131.7		17.7		122.8
MPF Plus	14.9		1.3		14.9		1.6
Total	$	41.8	$	207.3	$	40.7	$	196.6

15

The following table presents certain metrics and ratios related to the Bank's mortgage loans held for portfolio. The ratios in the table below are reported after the application of CE.

	Nine months ended September 30,
(dollars in millions)	2023			2022
Average mortgage loans outstanding during the period (UPB)	$	4,526.7		$	4,593.0
(Charge-offs) Recoveries, net(1)	$	—		$	0.3
Net charge-offs (recoveries) to average loans outstanding during the period	—		%	(0.01)		%
(dollars in millions)	September 30, 2023			December 31, 2022
Mortgage loans held for portfolio (UPB)	$	4,608.3		$	4,528.7
Nonaccrual loans (UPB)	$	20.7		$	21.3
ACL on mortgage loans held for portfolio	$	3.0		$	3.2
ACL to mortgage loans held for portfolio	0.06		%	0.07		%
Nonaccrual loans to mortgage loans held for portfolio	0.45		%	0.47		%
ACL to nonaccrual loans	14.33		%	15.24		%

Notes:

(1) Net charge-offs that the Bank does not expect to recover through CE receivable.

    The ACL on mortgage loans decreased by $0.2 million during the first nine months of 2023. Expected credit losses were reduced by the CE available to absorb losses on the loans in accordance with the credit structure of the MPF Program.

16

Cash and Investments. The Bank's strategy is to maintain its short-term liquidity position in part to be able to meet members' advance demand and Bank regulatory liquidity requirements. Excess cash is typically invested in overnight investments. The Bank also maintains an investment portfolio to enhance earnings. These investments may be classified as trading, AFS or HTM.

The Bank maintains a liquidity portfolio comprised of cash, interest-bearing deposits, Federal funds sold, securities purchased under agreements to resell, and U.S. Treasury obligations classified as trading or AFS. The liquidity portfolio totaled $13.5 billion at September 30, 2023 and $14.0 billion at December 31, 2022 a decrease of $0.5 billion.

The Bank's investment portfolio, excluding those investments included in the liquidity portfolio, is comprised of trading, AFS and HTM investments. The investments must meet the Bank's risk guidelines and certain other requirements, such as yield. The Bank's investment portfolio totaled $11.6 billion at September 30, 2023 and $8.1 billion at December 31, 2022. During the first nine months of 2023, the Bank was able to grow its MBS portfolio due to the combination of increased capacity resulting from increased capital and widening of mortgage spreads.

Investment securities, defined as all trading, AFS, and HTM securities, totaled $15.1 billion at September 30, 2023, compared to $13.4 billion at December 31, 2022. Details of the investment securities portfolio follow.

	Carrying Value
(in millions)	September 30, 2023			December 31, 2022
Trading securities:
Non-MBS:
Government-sponsored enterprises (GSE)	$	212.6		$	214.0
Total trading securities	$	212.6		$	214.0
Yield on trading securities	3.18		%	3.18		%
AFS securities:
Non-MBS:
U.S. Treasury obligations	$	3,525.7		$	5,232.5
GSE and Tennessee Valley Authority (TVA) obligations	987.4			1,125.7
State or local agency obligations	160.0			170.3
MBS:
U.S. obligations single-family	1,341.9			483.0
GSE single-family	1,946.0			1,881.0
GSE multifamily	5,561.7			3,155.8
Private label	126.9			142.3
Total AFS securities	$	13,649.6		$	12,190.6
Yield on AFS securities	4.02		%	2.83		%
HTM securities:
MBS:
U.S. obligations single-family	$	542.4		$	162.4
GSE single-family	399.3			435.1
GSE multifamily	258.9			305.3
Private label	46.8			53.7
Total HTM securities	$	1,247.4		$	956.5
Yield on HTM securities	4.20		%	3.32		%
Total investment securities	$	15,109.6		$	13,361.1
Yield on investment securities	4.02		%	2.87		%

For additional information on the credit risk of the investment portfolio, see the Credit and Counterparty Risk - Investments discussion in the Risk Management section of this Item 2.

17

ACL - Investments. The Bank invests in interest-bearing deposits and Federal funds sold which are unsecured investments. The Bank also invests in securities purchased under agreements to resell which are secured investments. At September 30, 2023 and December 31, 2022, these investments were repaid according to the contractual terms. No ACL was recorded for these assets at September 30, 2023 or December 31, 2022.

AFS securities are evaluated quarterly for expected credit losses on an individual security basis. In assessing whether a credit loss exists, the Bank considers whether there would be a shortfall in receiving all cash flows contractually due. The allowance is limited to the amount of the AFS security’s unrealized loss, if any. If the AFS security is in an unrealized gain, the ACL is zero. The ACL on AFS private label MBS was $11.6 million at September 30, 2023 and $8.5 million at December 31, 2022. The increase in the ACL was driven primarily by private label MBS classified as AFS due to a decline in market values.

HTM securities are evaluated quarterly for expected credit losses on a pool basis unless an individual assessment is deemed necessary because the securities do not possess similar risk characteristics. An ACL is recorded with a corresponding adjustment to the provision (reversal) for credit losses. There was no ACL at September 30, 2023 or December 31, 2022.

    For additional information on the allowance methodology, see Note 2 - Investments in this Form 10-Q.

Liabilities and Capital

Deposits. The Bank offers demand, overnight and term deposits for members and qualifying nonmembers. Total deposits at September 30, 2023 increased to $856.0 million from $553.3 million at December 31, 2022.

    Consolidated Obligations. Consolidated obligations consist of bonds and discount notes. The Bank's consolidated obligations totaled $99.4 billion at September 30, 2023, an increase of $9.2 billion from December 31, 2022. The overall increase in consolidated obligations outstanding is consistent with the increased advance balances. At September 30, 2023, the Bank’s bonds outstanding increased to $86.8 billion compared to $56.5 billion at December 31, 2022. Discount notes outstanding at September 30, 2023 decreased to $12.5 billion from $33.7 billion at December 31, 2022. The funding mix shifted towards callable bonds as the Bank capitalized on favorable funding spreads.

The Bank primarily uses noncallable bonds as a source of funding but also utilizes structured notes such as callable bonds. Unswapped callable bonds primarily fund the Bank’s mortgage portfolio while swapped callable bonds fund other floating rate assets.

18

The following table provides information on consolidated obligations by product type and contractual maturity at September 30, 2023 and December 31, 2022.

(in millions)	September 30, 2023		December 31, 2022
Discount Notes
Overnight	$	100.0	$	880.0
Due after 1 day through 30 days	4,893.1		6,497.8
Due after 30 days through 90 days	5,116.1		21,764.8
Due after 90 days though 1 Year	2,515.8		4,864.5
Total par value	$	12,625.0	$	34,007.1
Fixed-rate, non-callable
Due in 1 year or less	$	21,403.3	$	11,341.5
Due after 1 year through 3 years	4,928.6		7,130.1
Due after 3 years through 5 years	1,917.4		999.1
Thereafter	1,109.2		1,412.1
Total par value	$	29,358.5	$	20,882.8
Fixed-rate, callable
Due in 1 year or less	$	20,715.0	$	4,137.5
Due after 1 year through 3 years	8,270.5		6,552.0
Due after 3 years through 5 years	3,836.0		6,419.0
Thereafter	1,966.0		1,992.0
Total par value	$	34,787.5	$	19,100.5
Variable- rate, non-callable
Due in 1 year or less	$	10,729.5	$	14,148.0
Due after 1 year through 3 years	6,590.9		260.0
Total par value	$	17,320.4	$	14,408.0
Variable- rate, callable
Due in 1 year or less	$	4,280.0	$	—
Total par value	$	4,280.0	$	—
Step-up, non-callable
Due in 1 year or less	$	115.0	$	90.0
Due after 1 year through 3 years	421.0		101.0
Due after 3 years through 5 years	60.0		320.0
Thereafter	—		15.0
Total par value	$	596.0	$	526.0
Step-up, callable
Due in 1 year or less	$	238.0	$	1,031.0
Due after 1 year through 3 years	794.0		712.0
Due after 3 years through 5 years	270.0		670.0
Thereafter	185.0		185.0
Total par value	$	1,487.0	$	2,598.0
Total par balance	$	100,454.4	$	91,522.4
Other Adjustments (1)	$	(1,091.5)	$	(1,305.5)
Total consolidated obligations	$	99,362.9	$	90,216.9

    Notes:

(1)Consists of premiums, discounts, and hedging and other adjustments.

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For additional information on the Bank's consolidated obligations, refer to Note 9 to the audited financial statements in Item 8. Financial Statements and Supplementary Data of the Bank's 2022 Form 10-K.

Commitments and Off-Balance Sheet Items. As of September 30, 2023, the Bank was obligated to fund approximately $1.4 million in additional advances and BOB loans, $24.9 million of mortgage loans, and to issue $603.0 million in consolidated obligations. In addition, the Bank had $29.8 billion in outstanding standby letters of credit as of September 30, 2023. The Bank does not consolidate any off-balance sheet special purpose entities or other off-balance sheet conduits.

Capital and Retained Earnings. The Bank’s return on average equity for the three and nine months ended September 30, 2023 was 11.44% and 11.14%. The Bank's return on average equity for the three and nine months ended September 30, 2022 was 7.73% and 5.36%. Capital adequacy, including the level of retained earnings, is monitored through the evaluation of market value of equity to par value of capital stock (MV/CS) as well as other risk metrics. Details regarding these metrics are discussed in the Risk Management portion of this Item 2.

The Bank's capital stock is owned by its members and former members. The concentration of the Bank's capital stock by institution type is presented below.

(dollars in millions)	September 30, 2023			December 31, 2022
Commercial banks	126	$	3,461.3	130	$	3,045.3
Savings institutions	48	172.6		49	172.9
Insurance companies	39	87.2		38	91.8
Credit unions	65	119.2		63	118.0
Community Development Financial Institution (CDFI)	2	0.3		2	0.4
Total member institutions / total GAAP capital stock	280	$	3,840.6	282	$	3,428.4
Mandatorily redeemable capital stock		28.0			27.8
Total capital stock		$	3,868.6		$	3,456.2

    The total number of members as of September 30, 2023 decreased by two members compared to December 31, 2022. The Bank added four new members and lost six members. Two members merged with another institution within the Bank's district and three members merged its charter with an entity outside the Bank's district. One member relocated their principal place of business outside the Bank's district.

The following tables present member holdings of 10% or more of the Bank’s total capital stock, including mandatorily redeemable capital stock, outstanding as of September 30, 2023 and December 31, 2022.

(dollars in millions)	September 30, 2023
Member	Capital Stock		% of Total
PNC Bank, N.A., Wilmington, DE (1)	$	1,465.0	37.9	%
TD Bank, N.A., Wilmington, DE	$	450.8	11.7	%

(dollars in millions)	December 31, 2022
Member	Capital Stock		% of Total
PNC Bank, N.A., Wilmington, DE(1)	$	1,308.0	38.2	%
TD Bank, N.A., Wilmington, DE	$	533.1	15.6	%

Note:

(1) For Bank membership purposes, the principal place of business is Pittsburgh, PA.

The Finance Agency has issued regulatory guidance to the FHLBanks relating to capital management and retained earnings. The guidance directs each FHLBank to assess, at least annually, the adequacy of its retained earnings with consideration given to future possible financial and economic scenarios. The guidance also outlines the considerations that each FHLBank should undertake in assessing the adequacy of its retained earnings.

The Bank developed a framework for evaluating retained earnings adequacy, consistent with regulatory guidance and requirements. Retained earnings are intended to cover unexpected losses and protect members' par value of capital stock. The

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framework also assists management in its overall analysis of the level of future dividends. The framework includes four risk elements that comprise the Bank's total retained earnings target: (1) market risk; (2) credit risk; (3) operational risk; and (4) accounting risk. The retained earnings target generated from this framework is sensitive to changes in the Bank's risk profile, whether favorable or unfavorable. The framework generated a retained earnings target of $608 million as of September 30, 2023.

In addition to the retained earnings target, the Bank considers the amount of retained earnings needed for compliance with the regulatory minimum capital-to-asset ratio of 4% to determine an overall retained earnings need. The Bank's overall retained earnings need is $1,017 million as of September 30, 2023.

The following table presents retained earnings information for the current and prior year.

(in millions)	September 30, 2023		December 31, 2022
Unrestricted Retained Earnings	$	1,191.0	$	1,037.2
Restricted Retained Earnings (RRE)	590.0		499.0
Total Retained Earnings	$	1,781.0	$	1,536.2

Retained earnings increased $244.8 million compared to December 31, 2022. The increase reflected net income that was partially offset by dividends paid. In accordance with the Joint Capital Enhancement Agreement (JCEA), entered into by the Bank, an allocation of net income was made to RRE during the first nine months of 2023. For additional information, see Note 7 - Capital in this Form 10-Q.

Dividends. The Bank declares dividends based on an annualized yield and differentiates between membership and activity capital stock. The dividend received by the member is calculated based on the average capital stock owned by the member for the previous quarter. Historically, the Bank has paid cash dividends although dividends may be paid in capital stock. Details regarding the Bank’s payment of dividends, including annual yields, for current and prior year periods are provided in Note 7 - Capital in this Form 10-Q. The following table presents dividend information for the three and nine months ended September 30, 2023 and 2022.

	Three months ended September 30,						Nine months ended September 30,
	2023			2022			2023			2022
Dividends (in millions)	$	81.2		$	24.4		$	210.3		$	49.0
Dividends per share	$	2.16		$	1.03		$	5.43		$	2.73
Dividend payout ratio (1)	52.04		%	32.78		%	46.21		%	37.52		%
Weighted average dividend rate	7.75		%	5.55		%	7.68		%	5.83		%
Average Fed Funds rate	5.26		%	1.04		%	4.93		%	2.20		%
Dividend spread to Fed Funds	2.49		%	4.51		%	2.75		%	3.63		%

Notes:

(1) Represents dividends paid as a percentage of net income for the respective periods presented.

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Capital Resources

The following should be read in conjunction with the unaudited interim financial statements included in this Form 10-Q, the audited financial statements in Item 8. Financial Statements and Supplementary Data and the Capital Resources section of Item 1. Business in the Bank's 2022 Form 10-K.

Risk-Based Capital (RBC)

The Finance Agency’s RBC regulatory framework requires the Bank to maintain sufficient permanent capital, defined as retained earnings plus capital stock, to meet its combined credit risk, market risk and operations risk. Each of these components is computed as specified in regulations and directives issued by the Finance Agency.

(in millions)	September 30, 2023		December 31, 2022
Permanent capital:
Capital stock (1)	$	3,868.6	$	3,456.2
Retained earnings	1,781.0		1,536.2
Total permanent capital	$	5,649.6	$	4,992.4
RBC requirement:
Credit risk capital	$	222.9	$	211.8
Market risk capital	352.0		127.5
Operations risk capital	172.5		101.8
Total RBC requirement	$	747.4	$	441.1
Excess permanent capital over RBC requirement	$	4,902.2	$	4,551.3

Note:

(1) Capital stock includes mandatorily redeemable capital stock.

The increase in the total RBC requirement as of September 30, 2023 is mainly related to the increase in the market risk capital and operational risk requirements. The increase was primarily driven by the increase in member advance activity during the first nine months of 2023 along with changes in the regulatory market risk scenarios including the incorporation of SOFR specific shocks. The Bank continues to maintain significant excess permanent capital over the RBC requirement. The increase in permanent capital and excess permanent capital was driven by the increase in capital stock associated with higher advance levels.

On September 18, 2023, the Bank received final notification from the Finance Agency that it was considered "adequately capitalized" for the quarter ended June 30, 2023. As of the date of this filing, the Bank has not received final notice from the Finance Agency regarding its capital classification for the quarter ended September 30, 2023.

Critical Accounting Policies and Estimates

The Bank's financial statements are prepared by applying certain accounting policies. Note 1 - Summary of Significant Accounting Policies in Item 8. Financial Statements and Supplementary Data in the Bank's 2022 Form 10-K describes the most significant accounting policies used by the Bank. In addition, the Bank's critical accounting policies and estimates are presented in Item 7. Management's Discussion and Analysis in the Bank's 2022 Form 10-K. Certain of these policies require management to make estimates or economic assumptions that may prove inaccurate or be subject to variations that may significantly affect the Bank's reported results and financial position for the period or in future periods. Management views these policies as critical accounting policies.

The Bank made no changes to its critical accounting policies during the nine months ended September 30, 2023.

See Note 1 - Changes in Accounting Principle and Recently Issued Accounting Standards and Interpretations to the unaudited financial statements in this Form 10-Q for information on new accounting pronouncements impacting the financial statements or becoming effective for the Bank in future periods.

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Legislative and Regulatory Developments

Significant regulatory actions and developments for the period covered by this report not previously disclosed are summarized below.

Finance Agency’s Review and Analysis of the Federal Home Loan Bank System (FHLBank System).

Beginning in the Fall of 2022, and over a period of several months, the Finance Agency undertook a review and analysis of the FHLBank System, through a series of public listening sessions, regional roundtable discussions, and receipt of comments from stakeholders. This review covered such areas as the FHLBanks’ mission and purpose in a changing marketplace; their organization, operational efficiency, and effectiveness; their role in promoting affordable, sustainable, equitable, and resilient housing and community investment; their role in addressing the unique needs of rural and financially vulnerable communities; member products, services, and collateral requirements; and membership eligibility and requirements. The Finance Agency has stated that its review and analysis will culminate in a written report expected to (i) summarize the feedback received; (ii) identify actions the Finance Agency plans to take; and (iii) outline any recommendations for consideration by Congress. To the extent the Finance Agency’s actions or recommendations result in changes to supervisory expectations, stakeholder perceptions and/or our business model that impact our ability to execute on our mission of providing liquidity to our members and support for affordable housing and community development, our business, results of operations and reputation, and the value of membership in the FHLBanks may be negatively impacted. For a further discussion of related risks, see Item 1A. Risk Factors in the Bank’s 2022 Form 10-K.

Banking Regulatory Proposals.

Subsequent to the bank failures and banking industry volatility that occurred in March 2023, the following rules impacting our members have been proposed by federal banking regulators:

a.On September 18, 2023, the Office of the Comptroller of the Currency (OCC), the Federal Reserve, and the Federal Deposit Insurance Corporation (FDIC) published a joint notice of proposed rulemaking that would amend the capital requirements applicable to certain large banking organizations and banking organizations with significant trading activity, by amending the calculation of risk-based capital requirements to better reflect the risks of these banking organizations’ exposures; reducing the complexity of the framework; enhancing the consistency of requirements across these banking organizations; and facilitating more effective supervisory and market assessments of capital adequacy (Proposed Capital Rule). This proposed rule is open to public comment through January 16, 2024.

b.On September 19, 2023, the OCC, the Federal Reserve, and the FDIC published a joint notice of proposed rulemaking that would require certain large banking organizations to issue and maintain outstanding a minimum amount of long-term debt in order to: promote more orderly resolutions in the event of such organizations’ failure; reduce costs to the Deposit Insurance Fund; and mitigate financial stability and contagion risks by reducing the risk of loss to uninsured depositors (Proposed Long-Term Debt Rule). This proposed rule is open to public comment through November 30, 2023.

a.On September 19, 2023, the FDIC published proposed amendments to its existing resolution plan requirements for insured depository institutions (IDIs) with $50 billion or more in total assets, which would require additional detail on covered IDIs’ strategies for their orderly and efficient resolutions and enhance the FDIC’s expectations for resolution plan testing. For resolutions involving a bridge depository institution, the proposed rule provides that a resolution strategy may assume continuation of FHLBank advances, provided the strategy contemplates timely repayment of those advances. This proposed rule is open to public comment through November 30, 2023.

We are evaluating the extent to which these proposed rules, if adopted as proposed, may impact our members’ business activities with us. Specifically, we expect the Proposed Capital Rule may impact our members’ collateral capacity and the Proposed Long-Term Debt Rule may impact member demand for advances.

Risk Management

    The Bank employs a corporate governance and internal control framework designed to support the effective management of the Bank’s business activities and the related inherent risks. As part of this framework, the Board has approved a Risk Governance Policy and a Member Products Policy, both of which are reviewed regularly and re-approved at least annually. The Risk Governance Policy establishes risk guidelines, limits (if applicable), and standards for credit risk, market risk, liquidity risk, business risk and various forms of operational and technology risk, in accordance with Finance Agency regulations and consistent with the Bank’s risk appetite. The Member Products Policy establishes the eligibility and authorization requirements,

23

policy limits and restrictions, and the terms applicable to each type of Bank product or service, as well as collateral requirements. The risk appetite is established by the Board, as are other applicable guidelines in connection with the Bank’s Capital Plan and overall risk management.

Risk Governance

The Bank’s lending, investment and funding and hedging activities expose the Bank to a number of risks that include, market and interest rate risk, credit and counterparty risk, liquidity and funding risk, and operational and business risks. These include risks such as use and reliance on models and end-user computing tools, technology and information security risk, among others. In addition, the Bank’s risks are affected by current and projected financial and residential mortgage market trends, including those described in Item 1A. Risk Factors in the Bank's 2022 Form 10-K. Details regarding the Bank's risk governance framework and processes are included in the "Risk Governance" discussion in Risk Management in Item 7. Management's Discussion and Analysis in the Bank's 2022 Form 10-K.

Capital Adequacy Measures. MV/CS provides a current assessment of the liquidation value of the balance sheet and measures the Bank's current ability to honor the par put redemption feature of its capital stock. This is one of the risk metrics used to evaluate the adequacy of retained earnings, which is used to develop dividend payment recommendations and support the repurchase of excess capital stock.

The current Board-approved floor for MV/CS is 90.0%. MV/CS is measured against the floor monthly. When MV/CS is below the established floor, excess capital stock repurchases and dividend payouts are restricted. See the “Capital and Retained Earnings” discussion in Financial Condition in this Item 2 for details regarding the Bank’s retained earnings policy.
The MV/CS ratio was 138.3% at September 30, 2023 and 137.1% at December 31, 2022. The increase was primarily due to the growth in retained earnings which outweighed the increase in capital stock as a result of higher advances.

Qualitative and Quantitative Disclosures Regarding Market Risk

Managing Market Risk. The Bank's market risk management objective is to protect member/shareholder and bondholder value consistent with the Bank's housing mission and safe and sound operations across a wide range of interest rate environments. Management believes that a disciplined approach to market risk management is essential to maintaining a strong capital base and uninterrupted access to the capital markets.

The Bank's Market Risk Model. Significant resources are devoted to ensuring that the level of market risk in the balance sheet is accurately measured, thus allowing management to monitor the risk against policy and regulatory limits. The Bank uses externally developed models to evaluate its financial position and market risk. One of the most critical market-based models relates to the prepayment of principal on mortgage-related instruments. Management regularly reviews the major assumptions and methodologies used in its models, as well as the performance of the models relative to empirical results, so that appropriate changes to the models can be made. Economic conditions, such as inflationary pressures and rising interest rates, may impact the performance of the Bank's models used to measure market risk. Management considers the impact of current economic conditions on key market risk measures and makes changes as deemed appropriate.

The Bank regularly validates the models used to measure market risk. Such model validations are performed by the Bank's model risk management department, which is separate from the model owner. These model validations may include third-party specialists when appropriate. The model validations are supplemented by performance monitoring by the model owner which is reported to the Bank's model risk management department. In addition, the Bank benchmarks model-derived fair values to those provided by third-party services or alternative internal valuation models. The benchmarking analysis is performed by a group that is separate from the model owner. Results of the model validations and benchmarking analysis, as well as any changes to the valuation methodologies and inputs, are reported to the Bank's Asset and Liability Committee (ALCO) (or subcommittee of), which is responsible for overseeing market risk.

Duration of Equity. One key risk metric used by the Bank is duration. Duration is a measure of the sensitivity of a financial instrument's value, or the value of a portfolio of instruments, to a 100 basis point parallel shift in interest rates. Duration (typically expressed in years) is commonly used by investors throughout the fixed income securities market as a measure of financial instrument price sensitivity.

The Bank's asset/liability management policy approved by the Board calls for actual duration of equity to be maintained within a + 4.5 year range in the base case. In addition, the duration of equity exposure limit in an instantaneous parallel interest

24

rate shock of + 200 basis points is + 7 years. Management analyzes the duration of equity exposure against this policy limit on a daily basis and regularly evaluates its market risk management strategies.

The following table presents the Bank's duration of equity exposure at September 30, 2023 and December 31, 2022.

(in years)	Down 200 basis points	Down 100 basis points	Base Case	Up 100  basis points	Up 200  basis points
Duration of Equity:
September 30, 2023	1.0	0.9	0.9	1.0	1.2
December 31, 2022	0.7	0.9	1.0	1.1	1.3

    Duration of equity exposure at September 30, 2023 was comparable to year end. The Bank regularly monitors the mortgage and related fixed-income markets, including the impact that changes in the market or anticipated modeling changes may have on duration of equity and other market risk measures and may take actions to reduce market risk exposures as needed. Management believes that the Bank's current market risk profile is reasonable given the current market conditions.

Return on Equity (ROE) Spread Volatility. Interest rate risk is also measured based on the volatility in the Bank’s projected return on capital in excess of the return of an established benchmark market index. ROE spread is defined as the Bank's return on average equity, including capital stock and retained earnings, in excess of the average of the projected Federal funds rate.

ROE spread volatility is a measure of the variability of the Bank’s projected ROE spread in response to shifts in interest rates and represents the change in ROE spread compared to an ROE spread that is generated by the Bank in its base forecasting scenario. ROE spread volatility is measured over a rolling forward 12 month period for selected interest rate scenarios and excludes the income sensitivity resulting from mark-to-market changes, which are separately described below.

        The ROE spread volatility presented in the table below reflects spreads relative to the projected Federal funds rate. Management uses both parallel and non-parallel rate scenarios to assess interest rate risk. The steeper and flatter yield curve shift scenarios are represented by appropriate increases and decreases in short-term and long-term interest rates using the three-year point on the yield curve as the pivot point. Given the continued increase in short-term interest rates during the first nine months of 2023, the Bank replaced the down 100 bps parallel shock with a down 200 bps parallel shock.

ROE Spread Volatility Increase/(Decline)
(in basis points)	Down 200 bps Parallel Shock	Down 100 bps Parallel Shock	Down 100 bps Longer Term Rate Shock	100 bps Steeper	100 bps Flatter	Up 200 bps Parallel Shock
September 30, 2023	(33)	N/A	(1)	(36)	(9)	(26)
December 31, 2022	N/A	1	(1)	2	(7)	(24)

    Changes in ROE spread volatility in the first nine months of 2023 primarily reflect the impact of funding mix changes. For each scenario, the Board's limit on the decline in ROE spread is set at no greater than 100 basis points. The Bank was in compliance with the ROE spread volatility limit across all selected interest rate shock scenarios at September 30, 2023 and December 31, 2022.

    Mark-to-Market Risk. The Bank measures earnings risk associated with certain mark-to-market positions, including economic hedges. This framework measures forward-looking, scenario-based exposure based on interest rate and volatility shocks that are applied to any existing transaction that is marked to market through the income statement without an offsetting mark arising from a qualifying hedge relationship. In addition, the Bank's Capital Markets and Corporate Risk Management departments monitor the actual profit/loss change on a daily, monthly cumulative, and quarterly cumulative basis. The Bank's ALCO monitors mark-to-market risk through a daily exposure guideline and quarterly profit/loss reporting trigger.

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Credit and Counterparty Risk - Total Credit Exposure (TCE) and Collateral

TCE. The Bank manages the credit risk of each member on the basis of the member’s total credit exposure (TCE) to the Bank, which includes advances and related accrued interest, fees, basis adjustments and estimated prepayment fees; letters of credit; forward-dated advance commitments; and MPF credit enhancement and related obligations. This credit risk is managed by monitoring the financial condition of borrowers and by requiring all borrowers (and, where applicable in connection with member affiliate pledge arrangements approved by the Bank, their affiliates) to pledge sufficient eligible collateral for all borrower obligations to the Bank as the Bank seeks to cover all potential forms of credit-related exposure with sufficient eligible collateral. At September 30, 2023, aggregate TCE was $108.1 billion, comprised of approximately $76.7 billion in advance principal outstanding, $30.8 billion in letters of credit (including forward commitments), and $0.6 billion in accrued interest, prepayment fees, MPF credit enhancement obligations and other fees.

The Bank establishes a maximum borrowing capacity (MBC) for each member based on collateral weightings applied to eligible collateral as described in the Bank’s Member Products Policy. Details regarding this policy are available in the Advance Products discussion in Item 1. Business in the Bank's 2022 Form 10-K. According to the policy, eligible collateral is weighted so that the collateral value is likely to exceed the amount that may be owed to the Bank in the event of a default. The Bank also has the ability to call for additional or substitute collateral while any indebtedness is outstanding to protect the Bank’s secured position. At September 30, 2023 and December 31, 2022, on a borrower-by-borrower basis, the Bank had a perfected security interest in eligible collateral with an estimated collateral value (after collateral weightings) in excess of the

book value of all members’ and nonmember housing associates’ obligations to the Bank.

As part of the assessment of member creditworthiness, the Bank regularly monitors banking system and financial markets for signs of stress, considers events and conditions impacting a member individually or members generally and utilizes qualitative overrides to model internal credit ratings, as appropriate.

The financial condition of all members and eligible non-member housing associates is closely monitored for compliance with financial criteria as set forth in the Bank’s credit policies. The Bank has developed an internal credit rating (ICR) system that calculates financial scores and rates member institutions on a quarterly basis using a numerical rating scale from one to ten, with one being the best rating. Generally, scores are objectively calculated based on financial ratios computed from publicly available data. The scoring system gives the highest weighting to the member’s asset quality and capitalization. Other key factors include earnings and balance sheet composition. Operating results which include net income, liquidity levels and liquidity composition, capital levels, reserve coverage and other factors for the previous four quarters are used. The most recent quarter’s results are given a higher weighting. Additionally, a member’s credit score can be adjusted for various qualitative factors, such as the financial condition of the member’s holding company and impact of member market events. A higher number (i.e., worse) rating indicates that a member exhibits well defined financial weaknesses. Members in these categories are reviewed for potential change to their collateral delivery status and potential limitations on access to Bank products. Other uses of the ICR include the scheduling of on-site collateral reviews. Insurance company members are rated on the same numerical rating scale as depository institutions, but the analysis includes both quantitative and qualitative factors. While depository institution member analysis uses standardized regulatory call report data and risk modeling, with qualitative overrides, insurance company credit risk analysis is based on various forms of financial data, including, but not limited to, statutory reporting filed by insurance companies with state insurance regulators, which requires specialized methodologies and dedicated underwriting resources.

As noted above, the Bank monitors member credit quality on a regular basis. Management believes that it has adequate policies and procedures in place to effectively manage credit risk exposure related to member TCE. These credit and collateral policies are intended to balance the Bank’s dual goals of meeting members’ needs as a reliable source of liquidity and limiting credit loss by adjusting the credit and collateral terms in response to deterioration in creditworthiness. The Bank has never experienced a loss on its advance exposure.

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The following table presents the Bank’s top five financial entities with respect to their TCE at September 30, 2023.

	September 30, 2023
(dollars in millions)	TCE		% of Total
PNC Bank, National Association, DE(1)	$	36,229.5	33.5	%
TD Bank, National Association, DE(2)	28,350.3		26.2
Ally Bank, UT (3)	7,838.3		7.3
Santander Bank, National Association, DE(4)	7,105.8		6.6
First National Bank of Pennsylvania	3,689.9		3.4
	$	83,213.8	77.0	%
Other financial institutions	24,917.4		23.0
Total TCE outstanding	$	108,131.2	100.0	%

Notes:

(1) For Bank membership purposes, principal place of business is Pittsburgh, PA.

(2) For Bank membership purposes, principal place of business is Wilmington, DE.

(3)For Bank membership purposes, principal place of business is Horsham, PA.

(4) For Bank membership purposes, principal place of business is Wilmington, DE, and is a subsidiary of Banco Santander, which is located in Spain.

Advance Concentration Risk. The following table lists the Bank’s top five borrowers based on advance balances at par as of September 30, 2023.

	September 30, 2023
(dollars in millions)	Advance Balance		% of Total
PNC Bank, National Association, DE(1)	$	36,000.0	46.9	%
Ally Bank, UT(2)	7,825.0		10.2
Santander Bank, National Association, DE(3)	7,017.7		9.2
TD Bank, National Association, DE(4)	6,500.0		8.5
First National Bank of Pennsylvania	2,865.0		3.7
	$	60,207.7	78.5	%
Other borrowers	16,486.0		21.5
Total advances	$	76,693.7	100.0	%

Notes:

(1) For Bank membership purposes, principal place of business is Pittsburgh, PA.

(2)For Bank membership purposes, principal place of business is Horsham, PA.

(3) For Bank membership purposes, principal place of business is Wilmington, DE, and is a subsidiary of Banco Santander, which is located in Spain.

(4) For Bank membership purposes, principal place of business is Wilmington, DE.

Letters of Credit. The letter of credit product is collateralized under the same policies, procedures and guidelines that apply to advances. Outstanding letters of credit totaled $29.8 billion at September 30, 2023 and $22.1 billion at December 31, 2022, primarily related to public unit deposits. Not included in these totals are additional authorized but unused standby letters of credit of $1.0 billion at September 30, 2023 and $3.2 billion at December 31, 2022. The Bank had a concentration of letters of credit with one member (TD Bank) of $21.0 billion or 70% of the total at September 30, 2023 and $16.8 billion or 76% of the total at December 31, 2022.

Collateral Policies and Practices. All members are required to maintain eligible collateral to secure their TCE in accordance with the Member Products Policy. Refer to the Risk Management section of the Bank's 2022 Form 10-K for additional information related to the Bank’s Collateral Policy.

Collateral Agreements and Valuation. The Bank provides members with two types of collateral agreements: a blanket lien collateral pledge agreement and a specific collateral pledge agreement. Under a blanket lien agreement, the Bank obtains a lien against all of the member’s unencumbered eligible collateral assets and most ineligible assets to secure the member’s obligations with the Bank. Under a specific collateral pledge agreement, the Bank obtains a lien against specific eligible collateral assets of the member or its affiliate (if applicable) to secure the member’s obligations with the Bank. The member provides a detailed listing, as an addendum to the specific collateral agreement, identifying those assets pledged as collateral or

27

delivered to the Bank or its third-party custodian. Details regarding average lending values provided under both blanket liens and specific liens and delivery arrangements are available in the "Credit and Counterparty Risk - TCE and Collateral" discussion in Risk Management in Item 7. Management's Discussion and Analysis in the Bank's 2022 Form 10-K.

Consistent with previous policy stipulations, high quality investment securities are defined as U.S. Treasury and U.S. Agency securities, REFCORP bonds, GSE MBS, commercial and residential private label MBS with a minimum credit rating of single A-minus, which the Bank considers as part of its evaluation of the collateral. In addition, municipal securities (or portions thereof) with a real estate nexus (e.g. proceeds primarily used for real estate development) with a minimum credit rating of single A-minus are included. Members have the option to deliver such high-quality investment securities to the Bank to increase their maximum borrowing capacity. Upon delivery, these securities are valued daily and all non-government or agency securities are subject to weekly ratings reviews. Reported amount also includes pledged FHLBanks cash deposits with the Bank.

For member borrowers, the following tables present information on a combined basis regarding the type of collateral securing their outstanding credit exposure and the collateral status as of September 30, 2023 and December 31, 2022.

	September 30, 2023
(dollars in millions)	Blanket Lien				Listing				Delivery				Total
	Amount		%		Amount		%		Amount		%		Amount		%
One-to-four single-family residential   mortgage loans	$	112,711.1	43.9	%	$	111.8	5.5	%	$	653.9	24.3	%	$	113,476.8	43.4	%
High quality investment securities	15,501.8		6.0		1,533.7		75.1		1,143.1		42.5		18,178.6		7.0
ORERC/CFI eligible collateral	101,187.6		39.4		367.6		18.0		718.3		26.7		102,273.5		39.1
Multi-family residential mortgage   loans	27,278.7		10.7		28.8		1.4		175.2		6.5		27,482.7		10.5
Total eligible collateral value	$	256,679.2	100.0	%	$	2,041.9	100.0	%	$	2,690.5	100.0	%	$	261,411.6	100.0	%
Total TCE	$	105,544.6	97.6	%	$	603.1	0.6	%	$	1,983.5	1.8	%	$	108,131.2	100.0	%
Number of members	172		86.9	%	15		7.6	%	11		5.6	%	198		100.0	%

	December 31, 2022
(dollars in millions)	Blanket Lien				Listing				Delivery				Total
	Amount		%		Amount		%		Amount		%		Amount		%
One-to-four single-family residential   mortgage loans	$	109,992.7	46.5	%	$	111.9	5.0	%	$	1.2	0.1	%	$	110,105.8	45.9	%
High quality investment securities	6,935.0		2.9		1,651.8		73.3		1,031.2		96.8		9,618.0		4.0
ORERC/CFI eligible collateral	96,224.4		40.7		407.8		18.1		32.9		3.1		96,665.1		40.3
Multi-family residential mortgage   loans	23,189.4		9.9		81.9		3.6		—		—		23,271.3		9.8
Total eligible collateral value	$	236,341.5	100.0	%	$	2,253.4	100.0	%	$	1,065.3	100.0	%	$	239,660.2	100.0	%
Total TCE	$	93,225.6	98.1	%	$	1,108.8	1.2	%	$	691.7	0.7	%	$	95,026.1	100.0	%
Number of members	168		85.3	%	16		8.1	%	13		6.6	%	197		100.0	%

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Credit and Counterparty Risk - Investments

    The Bank is also subject to credit risk on investments consisting of money market investments and investment securities. The Bank considers a variety of credit quality factors when analyzing potential investments, including collateral performance, marketability, asset class or sector considerations, local and regional economic conditions, NRSRO credit ratings and/or the financial health of the underlying issuer.

Investment Quality and External Credit Ratings. The following tables present the Bank’s investment carrying values as of September 30, 2023 and December 31, 2022, based on the lowest credit rating from the NRSROs (Moody’s, S&P and Fitch).

	September 30, 2023(1)
	Long-Term Rating
(in millions)	AAA		AA		A		BBB		Below Investment Grade		Unrated		Total
Money market investments:
Interest-bearing deposits	$	—	$	—	$	2,610.4	$	424.9	$	—	$	—	$	3,035.3
Securities purchased under agreements to resell	1,300.0		—		1,480.0		600.0		—		—		3,380.0
Federal funds sold	—		2,011.0		1,525.0		—		—		—		3,536.0
Total money market investments	1,300.0		2,011.0		5,615.4		1,024.9		—		—		9,951.3
Investment securities:
U.S. Treasury obligations	—		3,525.7		—		—		—		—		3,525.7
GSE and TVA obligations	—		1,200.0		—		—		—		—		1,200.0
State or local agency obligations	14.8		145.2		—		—		—		—		160.0
Total non-MBS	14.8		4,870.9		—		—		—		—		4,885.7
U.S. obligations single-family MBS	—		1,884.3		—		—		—		—		1,884.3
GSE single-family MBS	—		2,345.3		—		—		—		—		2,345.3
GSE multifamily MBS	—		5,820.6		—		—		—		—		5,820.6
Private label MBS	5.1		3.8		10.7		12.0		37.8		104.2		173.6
Total MBS	5.1		10,054.0		10.7		12.0		37.8		104.2		10,223.8
Total investments	$	1,319.9	$	16,935.9	$	5,626.1	$	1,036.9	$	37.8	$	104.2	$	25,060.8

	December 31, 2022 (1)
	Long-Term Rating
(in millions)	AAA		AA		A		BBB		Below Investment Grade		Unrated		Total
Money market investments:
Interest-bearing deposits	$	—	$	—	$	2,129.8	$	336.2	$	—	$	—	$	2,466.0
Securities purchased under agreements to resell	3,200.0		—		—		—		—		—		3,200.0
Federal funds sold	—		1,475.0		1,575.0		—		—		—		3,050.0
Total money market investments	3,200.0		1,475.0		3,704.8		336.2		—		—		8,716.0
Investment securities:
U.S. Treasury obligations	—		5,232.5		—		—		—		—		5,232.5
GSE and TVA obligations	—		1,339.8		—		—		—		—		1,339.8
State or local agency obligations	15.6		154.7		—		—		—		—		170.3
Total non-MBS	15.6		6,727.0		—		—		—		—		6,742.6
U.S. obligations single-family MBS	—		645.3		—		—		—		—		645.3
GSE single-family MBS	—		2,316.2		—		—		—		—		2,316.2
GSE multifamily MBS	—		3,461.1		—		—		—		—		3,461.1
Private label MBS	5.8		4.5		12.2		13.4		43.6		116.4		195.9
Total MBS	5.8		6,427.1		12.2		13.4		43.6		116.4		6,618.5
Total investments	$	3,221.4	$	14,629.1	$	3,717.0	$	349.6	$	43.6	$	116.4	$	22,077.1

Notes:

(1) Balances exclude $5.5 million of interest-bearing deposits with FHLBank of Chicago for September 30, 2023 and $5.1 million for December 31, 2022 and total accrued interest of $68.3 million for September 30, 2023 and $45.6 million for December 31, 2022, respectively.

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The Bank also manages its investments' credit risks based on an internal credit rating system. For purposes of determining the internal credit rating, the Bank measures credit exposure through a process which includes internal credit review and various external factors, including NRSRO analysis. The Bank does not rely solely on any NRSRO rating in deriving its final internal credit rating.

Short-term Investments. Within the portfolio of short-term investments, the Bank faces credit risk from unsecured exposures. The Bank's unsecured investments have maturities generally ranging between overnight and six months and include the following types:

▪Interest-bearing deposits. Primarily consists of unsecured deposits that earn interest; and

▪Federal funds sold. Unsecured loans of reserve balances at the Federal Reserve Banks between financial institutions that are made on an overnight and term basis.

Under the Bank’s Risk Governance Policy, the Bank can place money market investments, which include those investment types listed above, on an unsecured basis with large financial institutions with long-term credit ratings no lower than BBB. Management actively monitors the credit quality of these counterparties. The Bank also invests in securities purchased under agreements to resell which are secured investments.

As of September 30, 2023, the Bank had unsecured exposure to ten counterparties totaling $6.6 billion, with five counterparties each exceeding 10% of the total exposure. The following table presents the Bank's unsecured credit exposure with non-governmental counterparties by investment type at September 30, 2023 and December 31, 2022. The unsecured investment credit exposure presented may not reflect the average or maximum exposure during the period.

(in millions)
Carrying Value (1) (2)	September 30, 2023		December 31, 2022
Interest-bearing deposits	$	3,035.3	$	2,466.0
Federal funds sold	3,536.0		3,050.0
Total	$	6,571.3	$	5,516.0

Note:

(1) Excludes unsecured investment credit exposure to U.S. government, U.S. government agencies and instrumentalities, GSEs, and supranational entities.

(2) Excludes $5.5 million of Interest-bearing deposits with FHLBank of Chicago for September 30, 2023 and $5.1 million for December 31, 2022.

    As of September 30, 2023, 35.4% of the Bank’s unsecured investment credit exposures were to U.S. branches and agency offices of foreign commercial banks. The Bank actively monitors its credit exposures and the credit quality of its counterparties, including an assessment of each counterparty’s financial performance, capital adequacy, sovereign support, and the current market perceptions of the counterparties. General macro-economic, political and market conditions may also be considered when deciding on unsecured exposure. As a result, the Bank may limit or suspend existing counterparties.

    Finance Agency regulations include limits on the amount of unsecured credit the Bank may extend to a counterparty or to a group of affiliated counterparties. This limit is based on a percentage of eligible regulatory capital and the counterparty's overall internal credit rating. Under these regulations, the level of eligible regulatory capital is determined as the lesser of the Bank's total regulatory capital or the eligible amount of regulatory capital of the counterparty. The eligible amount of regulatory capital is then multiplied by a stated percentage. This percentage is 1% to 15% and is based on the counterparty's internal credit rating. The calculation of term extensions of unsecured credit includes on-balance sheet transactions, off-balance sheet commitments, and derivative transactions.

    Finance Agency regulation also permits the Bank to extend additional unsecured credit for overnight transactions and for sales of Federal funds subject to continuing contracts that renew automatically. For overnight exposures only, the Bank's total unsecured exposure to a counterparty may not exceed twice the applicable regulatory limit, or a total of 2% to 30% of the eligible amount of regulatory capital, based on the counterparty's internal credit rating. As of September 30, 2023, the Bank was in compliance with the regulatory limits established for unsecured credit.

    The Bank's unsecured credit exposures to U.S. branches and agency offices of foreign commercial banks include the risk that, as a result of political or economic conditions in a country, the counterparty may be unable to meet their contractual repayment obligations. The Bank's unsecured credit exposures to domestic counterparties and U.S. subsidiaries of foreign commercial banks include the risk that these counterparties have extended credit to foreign counterparties.

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    The following table presents the long-term credit ratings of the unsecured investment credit exposures by the domicile of the counterparty or the domicile of the counterparty's immediate parent for U.S. subsidiaries or branches and agency offices of foreign commercial banks based on the NRSROs used. This table does not reflect the foreign sovereign government's credit rating.

(in millions)
September 30, 2023 (1) (2)
	Carrying Value
Domicile of Counterparty	Investment Grade (3) (4)
	AA		A		BBB		Total
Domestic	$	711.0	$	3,110.4	$	424.9	$	4,246.3
U.S. branches and agency offices of foreign commercial banks:
Australia	—		525.0		—		525.0
Canada	1,300.0		500.0		—		1,800.0
Total U.S. branches and agency offices of foreign commercial banks	$	1,300.0	$	1,025.0	$	—	$	2,325.0
Total unsecured investment credit exposure	$	2,011.0	$	4,135.4	$	424.9	$	6,571.3

(in millions)
December 31, 2022 (1) (2)
	Carrying Value
Domicile of Counterparty	Investment Grade (3) (4)
	AA		A		BBB		Total
Domestic	$	250.0	$	2,131.0	$	335.0	$	2,716.0
U.S. branches and agency offices of foreign commercial banks:
Australia	—		675.0		—		675.0
Canada	850.0		—		—		850.0
Finland	375.0		—		—		375.0
Germany	—		150.0		—		150.0
Netherlands	—		750.0		—		750.0
Total U.S. branches and agency offices of foreign commercial banks	$	1,225.0	$	1,575.0	$	—	$	2,800.0
Total unsecured investment credit exposure	$	1,475.0	$	3,706.0	$	335.0	$	5,516.0

Notes:

(1) Ratings are as of the respective dates.

(2) These ratings represent the lowest rating available for each security owned by the Bank based on the NRSROs used by the Bank. The Bank’s internal ratings may differ from those obtained from the NRSROs.

(3) Excludes unsecured investment credit exposure to U.S. government, U.S. government agencies and instrumentalities, GSEs, and supranational entities.

(4) Represents the NRSRO rating of the counterparty not the country. There were no AAA rated investments at September 30, 2023 or December 31, 2022.

At September 30, 2023 and December 31, 2022, all of the unsecured investments held by the Bank had overnight maturities.

U.S. Treasury Obligations. The Bank invests in U.S. Treasury obligations that are explicitly fully guaranteed by the U.S. government. This portfolio totaled $3.5 billion at September 30, 2023 and $5.2 billion at December 31, 2022.

Agency/GSE Securities and Agency/GSE MBS. The Bank invests in and is subject to credit risk related to securities issued by Federal Agencies or U.S. government corporations. In addition, the Bank invests in MBS issued by these same entities that are directly supported by underlying mortgage loans. Both the securities and MBS are either explicitly or implicitly guaranteed by the U.S. government. These portfolios totaled $11.3 billion at September 30, 2023 and $7.8 billion at December 31, 2022.

State and Local Agency Obligations. The Bank invests in and is subject to credit risk related to a portfolio of state and local agency obligations (i.e., Housing Finance Agency bonds) that are directly or indirectly supported by underlying mortgage loans. These portfolios totaled $160.0 million at September 30, 2023 and $170.3 million at December 31, 2022.

Private Label MBS. The Bank also holds investments in private label MBS, which are supported by underlying mortgage loans. The Bank made investments in private label MBS that were rated AAA at the time of purchase with the exception of one,

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which was rated AA. However, since the time of purchase, there have been significant ratings downgrades. In 2007, the Bank discontinued the purchase of private label MBS. The carrying value of the Bank’s private label MBS portfolio was $173.6 million at September 30, 2023 and $195.9 million at December 31, 2022.

Credit Losses. The Bank evaluates its private label MBS for expected credit losses quarterly, based on whether there is an expectation of a shortfall in receiving all cash flows contractually due. The Bank expects to receive all cash flows contractually due with respect to its HTM private label MBS and therefore has no ACL related to this portfolio. With respect to its AFS private label MBS, the Bank had an ACL of $11.6 million as of September 30, 2023 and $8.5 million as of December 31, 2022. For its AFS private label MBS for which the Bank expects a shortfall, an ACL is recorded, limited to the amount of a security's unrealized loss. If the security is in an unrealized gain position, the ACL is zero.

The Bank recorded a provision for credit losses of $1.6 million and $2.5 million on its AFS private label MBS for the third quarter of 2023 and 2022, respectively. For the nine months ended September 30, 2023 the Bank recorded a provision for credit loss of $3.0 million and $5.1 million for the same prior-year period. Because the Bank does not intend to sell and will not be required to sell its AFS private label MBS with recorded credit losses before anticipated recovery of their amortized cost basis, the Bank did not write down any of its AFS private label MBS securities amortized cost basis for the difference between amortized cost and fair value.

For those AFS private label MBS with a credit loss previously recorded, when the Bank projects an increase in cash flows during its quarterly assessment of expected credit losses, the Bank will first reverse the ACL by recognizing a reversal for credit losses up to the amount of the ACL, if any. If the Bank projects a significant increase in cash flows, the Bank adjusts the accretable yield prospectively and recognizes the interest income over the remaining lives of the securities. The amount recognized in interest income on these securities was $2.4 million and $3.3 million for the third quarter of 2023 and 2022 and $7.1 million and $9.2 million for the first nine months of 2023 and 2022, respectively.

Management will continue to evaluate its private label MBS. Material credit losses have occurred on AFS private label MBS and may occur in the future. The specific amount of credit losses will depend on the actual performance of the underlying loan collateral, payments received on the securities themselves, as well as the Bank’s future modeling assumptions. Declines in the fair values of AFS private label MBS with expected credit losses may result in the Bank recording an ACL. Those AFS private label MBS for which the Bank is recognizing recovery of credit losses through interest income may be more likely to incur additional credit losses due to the nature of the historic OTTI accounting model.

Credit and Counterparty Risk - Mortgage Loans, BOB Loans and Derivatives

Mortgage Loans. The Finance Agency has authorized the Bank to hold mortgage loans under the MPF Program whereby the Bank acquires mortgage loans from participating members in a shared credit risk structure. Conventional mortgage loans carry CE such that the Bank has a high degree of confidence that it will be paid principal and interest in all material respects, even under reasonably likely adverse changes to expected economic conditions. Loans are assessed by a third-party credit model at acquisition, and a CE is calculated based on loan attributes and the Bank’s risk tolerance with respect to its MPF portfolio. The Bank had net mortgage loans held for portfolio of $4.7 billion at September 30, 2023 and $4.6 billion at December 31, 2022, after an allowance for credit losses of $3.0 million at September 30, 2023 and $3.2 million at December 31, 2022.

Mortgage Insurers. The Bank’s MPF Program currently has credit exposure to ten mortgage insurance companies which provide PMI and/or Supplemental Mortgage Insurance (SMI) for the Bank’s various products. To be active, the mortgage insurance company must be approved as a qualified insurer in accordance with the AMA regulation. At least every two years, the Bank reviews the qualified insurers to determine if they continue to meet the financial and operational standards set by the Bank.

When a conventional mortgage loan requires PMI, the MPF Program modeling applied to the Bank’s acquisitions requires additional CE from the PFI to compensate for the mortgage insurer rating when it is below BBB+. The unpaid principal balance and maximum coverage outstanding for seriously delinquent loans with PMI as of September 30, 2023 was $7.9 million and $2.4 million, respectively. The corresponding amounts at December 31, 2022 were $8.4 million and $2.5 million.

The MPF Plus product required SMI under the MPF Program when each pool was established. At September 30, 2023, five of the 14 MPF Plus pools still have SMI policies in place. The Bank does not currently offer the MPF Plus product and has not purchased loans under MPF Plus Commitments since July 2006. Per MPF Program guidelines, the existing MPF Plus product exposure is required to be secured by the PFI once the SMI company is rated below AA-. As of September 30, 2023, all of the SMI exposure is fully collateralized.

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    BOB Loans. See Note 1 - Summary of Significant Accounting Policies in Item 8 in the Bank's 2022 Form 10-K for a description of the BOB program. The allowance for credit losses on BOB loans was $4.0 million at September 30, 2023 and $3.3 million at December 31, 2022.

Derivative Counterparties. To manage interest rate risk, the Bank enters into derivative contracts. Derivative transactions may be either executed with a counterparty (referred to as uncleared derivatives) or cleared through a Futures Commission Merchant (i.e., clearing agent) or a Swap Execution Facility with a Derivatives Clearing Organization (referred to as cleared derivatives). For uncleared derivatives, the Bank transacts most of its derivatives with large banks and major broker-dealers. Some of these banks and broker-dealers or their affiliates buy, sell, and distribute consolidated obligations. The Bank is not a derivatives dealer and does not trade derivatives for short-term profit. The Bank uses either CME Clearing or LCH Ltd. as the Clearing House for all its cleared derivative transactions. Variation margin payments are characterized as daily settlement payments, rather than collateral. Initial margin is considered cash collateral.

    The Bank is subject to credit risk due to the risk of non-performance by counterparties to its derivative transactions. The amount of credit risk on derivatives depends on the extent to which netting procedures, collateral requirements, daily settlement and other credit enhancements are used and are effective in mitigating the risk. The Bank manages credit risk through credit analysis, collateral management, and other credit enhancements.

Uncleared Derivatives. The Bank is subject to non-performance by counterparties to its uncleared derivative transactions. The Bank requires collateral on uncleared derivative transactions. Generally, the Bank's ISDA agreements for uncleared derivatives have collateral delivery thresholds set to zero (subject to minimum transfer amounts). The Bank has a small number of legacy trades that require collateral amounts from its counterparties based on credit rating. As a result of these risk mitigation initiatives, the Bank does not anticipate any credit losses on its uncleared derivative transactions with counterparties as of September 30, 2023. The Bank’s total net credit exposure to uncleared derivative counterparties is immaterial.

    Cleared Derivatives. The Bank is subject to credit risk exposure to the Clearing Houses and clearing agent. The requirement that the Bank post initial margin and exchange variation margin settlement payments, through the clearing agent, to the Clearing Houses, exposes the Bank to institutional credit risk in the event that the clearing agent or the Clearing Houses fail to meet their obligations. Initial margin is the amount calculated based on anticipated exposure to future changes in the value of a swap and protects the Clearing Houses from market risk in the event of default by one of its clearing agents. Variation margin is the amount accumulated through daily settlement of the current exposure arising from changes in the market value of the position since the trade was executed. The Bank's use of cleared derivatives is intended to mitigate credit risk exposure because a central counterparty is substituted for individual counterparties and collateral postings and variation margin settlement payments are made daily for changes in the value of cleared derivatives through a clearing agent. The Bank does not anticipate any credit losses on its cleared derivatives as of September 30, 2023.

    The contractual or notional amount of derivative transactions reflects the involvement of the Bank in the various classes of financial instruments. The maximum credit risk of the Bank with respect to derivative transactions is the estimated cost of replacing the derivative transactions if there is a default, minus the value of any related collateral, including initial margin and variation margin settlements on cleared derivatives. In determining maximum credit risk, the Bank considers accrued interest receivables and payables as well as the netting requirements to net assets and liabilities. The following table presents the derivative positions with non-member counterparties and member institutions to which the Bank has credit exposure at September 30, 2023 and December 31, 2022.

33

(in millions)	September 30, 2023
Credit Rating(1)	Notional Amount		Fair Value Before Collateral		Cash Collateral Pledged To (From) Counterparties		Net Credit Exposure to Counterparties
Non-member counterparties
Asset positions with credit exposure:
Uncleared derivatives
A	$	4,563.5	$	24.0	$	(22.9)	$	1.1
Cleared derivatives	7,685.6		—		28.0		28.0
Liability positions with credit exposure:
Uncleared derivatives
A	$	19,613.0	$	(391.8)	$	398.4	$	6.6
BBB	10,889.0		(214.8)		216.3		1.5
Cleared derivatives	41,441.4		—		388.4		388.4
Total derivative positions with credit exposure to non-member counterparties	$	84,192.5	$	(582.6)	$	1,008.2	$	425.6
Member institutions(2)	24.9		—		—		—
Total	$	84,217.4	$	(582.6)	$	1,008.2	$	425.6
Derivative positions without credit exposure	4,266.0
Total notional	$	88,483.4

(in millions)	December 31, 2022
Credit Rating(1)	Notional Amount		Fair Value Before Collateral		Cash Collateral Pledged To (From) Counterparties		Net Credit Exposure to Counterparties
Non-member counterparties
Asset positions with credit exposure:
Uncleared derivatives
A	$	250.0	$	0.9	$	(0.6)	$	0.3
Cleared derivatives	12,157.3		12.7		170.4		183.1
Liability positions with credit exposure:
Uncleared derivatives
AA	$	50.0	$	(0.4)	$	0.6	$	0.2
A	3,409.3		(129.5)		131.3		1.8
Cleared derivatives(2)	35,358.3		—		43.7		43.7
Total derivative positions with credit exposure to non-member counterparties	$	51,224.9	$	(116.3)	$	345.4	$	229.1
Member institutions(2)	10.3		—		—		—
Total	$	51,235.2	$	(116.3)	$	345.4	$	229.1
Derivative positions without credit exposure	20,966.6
Total notional	$	72,201.8

Notes:

(1) This table does not reflect any changes in rating, outlook or watch status occurring after September 30, 2023. The ratings presented in this table represent the lowest long-term counterparty credit rating available for each counterparty based on the NRSROs used by the Bank.

(2) Member institutions include mortgage delivery commitments.

    The Bank annually underwrites each counterparty and country and regularly monitors NRSRO rating actions and other publications to assess credit risk and determine if there have been any changes to credit quality. This includes actively monitoring counterparties with an elevated risk profile and assessing approximate indirect exposure to foreign sovereign debt.

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Liquidity and Funding Risk

As a wholesale bank, the Bank employs financial strategies which enable it to expand and contract its assets, liabilities and capital in response to changes in member credit demand, membership composition and other market factors. In addition, the Bank is required to maintain a level of liquidity in accordance with the FHLBank Act, Finance Agency regulations and policies established by its management and board of directors. The Bank’s liquidity resources are designed to support these strategies and requirements through a focus on maintaining a liquidity and funding balance between its financial assets and financial liabilities.

Asset/Liability Maturity Profile. The Bank is focused on maintaining adequate liquidity and funding balances with its financial assets and financial liabilities, and the FHLBanks work collectively to manage system-wide liquidity and funding needs. The Bank monitors the funding balance between financial assets and financial liabilities and is committed to prudent risk management practices and complies with FHFA requirements regarding this funding balance. External factors including member borrowing needs, supply and demand in the debt markets, and other factors may affect liquidity balances and the funding balances between financial assets and financial liabilities.

Sources of Liquidity. The Bank's primary sources of liquidity are proceeds from the issuance of consolidated obligations and a liquidity investment portfolio, as well as proceeds from the issuance of capital stock.

Consolidated Obligations. The Bank’s ability to operate its business, meet its obligations and generate net interest income depends primarily on the ability to issue large amounts of various debt structures at attractive rates. Consolidated obligation bonds and discount notes, along with member deposits and capital, represent the primary funding sources used by the Bank to support its asset base. Consolidated obligations benefit from the Bank’s GSE status; however, they are not obligations of the U.S., and the U.S. government does not guarantee them. Consolidated obligation bonds and discount notes are rated Aaa with stable outlook/P-1 by Moody’s and AA+ with stable outlook/A-1+ by S&P, as of September 30, 2023. These ratings measure the likelihood of timely payment of principal and interest. Note 6 - Consolidated Obligations to the unaudited financial statements in this Form 10-Q provides additional information regarding the Bank’s consolidated obligations.

Liquidity Investment Portfolio. The following investments are eligible to be included in the Bank’s liquidity investment portfolio for regulatory purposes cash, interest-bearing deposits, Federal funds sold, securities purchased under agreements to resell, and U.S. Treasury obligations classified as trading or AFS.

Contingency Liquidity. The Bank's sources of contingency liquidity include maturing overnight and short-term investments, maturing advances, unencumbered repurchase-eligible assets, trading securities, AFS securities, and MBS repayments. Uses of contingency liquidity include net settlements of consolidated obligations, member loan commitments, mortgage loan purchase commitments, deposit outflows and maturing other borrowed funds. Excess contingency liquidity is calculated as the difference between sources and uses of contingency liquidity. Excess contingency liquidity was approximately $27.1 billion at September 30, 2023 and $29.3 billion at December 31, 2022.

    Funding and Debt Issuance. During the first nine months of 2023, the Bank maintained continual access to funding. Access to short-term debt markets has been reliable because investors, driven by increased liquidity preferences and risk aversion have sought the FHLBanks' short-term debt as an asset of choice, including funding indexed to Secured Overnight Financing Rate (SOFR). The FHLBanks have maintained comparatively stable access to funding through a diverse investor base at relatively favorable spreads to U.S. Treasury rates. Changes or disruptions in the capital markets could limit the Bank's ability to issue consolidated obligations, which could impact the Bank's liquidity and cost of funds.

The current geopolitical environment highlights the Bank's ability to provide reliable liquidity in current market conditions. The FHLBank System continues to have strong access to debt issuance and the Bank’s cash position is solid.

    Refinancing Risk. There are inherent risks in utilizing short-term funding to support longer-dated assets and the Bank may be exposed to refinancing and investor concentration risks (collectively, refinancing risk). Refinancing risk includes the risk the Bank could have difficulty in rolling over short-term obligations when market conditions change. In managing and monitoring the amounts of financial assets that require refinancing, the Bank considers their contractual maturities, as well as certain assumptions regarding expected cash flows (i.e., estimated prepayments, embedded call optionality, and scheduled amortizations). The Bank and the Office of Finance (OF) jointly monitor the combined refinancing risk of the FHLBank System. In managing and monitoring the amounts of assets that require refunding, the Bank may consider contractual maturities of the financial assets, as well as certain assumptions regarding expected cash flows (i.e., estimated prepayments and scheduled amortizations).

35

    Interest Rate Risk. The Bank may use a portion of the short-term consolidated obligations issued to fund both short- and long-term variable rate-indexed assets. However, funding longer-term variable rate-indexed assets with shorter-term liabilities generally does not expose the Bank to interest rate risk because the rates on the variable rate-indexed assets reset similar to the liabilities. The Bank measures and monitors interest rate-risk with commonly used methods and metrics, which include the calculations of market value of equity, duration of equity, and duration gap.

    Regulatory Liquidity Requirements. The Bank is required to maintain a level of liquidity in accordance with certain Finance Agency guidance. Under these policies and guidelines, the Bank is required to maintain contingency liquidity to meet liquidity needs in an amount at least equal to its anticipated net cash outflows under certain scenarios. One scenario assumes that the Bank cannot access the capital markets for a period of 20 days and during that time members would renew any maturing, prepaid or called advances. In addition, the Bank is required to perform and report to the Finance Agency the results of an annual liquidity stress test. For the nine months ended September 30, 2023, the Bank was in compliance with the liquidity requirements except for one day, which non-compliance was a result of significant depository member demand for liquidity in response to the stress placed on the banking industry and financial markets during March 2023. Refer to the Liquidity and Funding Risk section in Item 7. of the Bank's 2022 Form 10-K for additional information.

    Joint and Several Liability. Although the Bank is primarily liable for its portion of consolidated obligations (i.e., those issued on its behalf), the Bank is also jointly and severally liable with the other 10 FHLBanks for the payment of principal and interest on consolidated obligations of all the FHLBanks. The Finance Agency, in its discretion and notwithstanding any other provisions, may at any time order any FHLBank to make principal or interest payments due on any consolidated obligation, even in the absence of default by the primary obligor. To the extent that an FHLBank makes any payment on a consolidated obligation on behalf of another FHLBank, the paying FHLBank shall be entitled to reimbursement from the non-paying FHLBank, which has a corresponding obligation to reimburse the FHLBank to the extent of such assistance and other associated costs. However, if the Finance Agency determines that the non-paying FHLBank is unable to satisfy its obligations, then the Finance Agency may allocate the outstanding liability among the remaining FHLBanks on a pro rata basis in proportion to each FHLBank’s participation in all consolidated obligations outstanding, or on any other basis the Finance Agency may determine. Finance Agency regulations govern the issuance of debt on behalf of the FHLBanks and authorize the FHLBanks to issue consolidated obligations, through the OF as its agent. The Bank is not permitted to issue individual debt without Finance Agency approval. See Note 6 - Consolidated Obligations of the audited financial statements in Item 8. Financial Statements and Supplementary Data in the Bank's 2022 Form 10-K for additional information.

Operational and Business Risks

    Operational Risk. Operational Risk is defined as the potential for loss resulting from inadequate or failed internal processes, people, and systems, or from external events and encompasses risks related to housing mission-related activities, including the Bank's member products and services activities and those associated with affordable housing programs or goals and other Bank business activities. The Bank considers various sources of risk of unexpected loss, including human error, fraud, unenforceability of legal contracts, deficiencies in internal controls and/or information systems, and the impact of cyber-security attacks, vendor breakdown, or damage from fire, theft, natural disaster or acts of terrorism. Generally, the category of operational risk includes loss exposures of a physical or procedural nature. Specifically, operational risk includes compliance, fraud, information/transaction, legal, cyber, vendor, people, succession and model risk. The Bank has established policies and procedures to manage each of the specific operational risks.

    Business Risk. Business risk is the possibility of an adverse impact on the Bank’s profitability or financial or business strategies resulting from external factors that may occur in the short-term and/or long-term. This risk includes the potential for strategic business constraints to be imposed through regulatory, legislative or political changes. Examples of external factors may include, but are not limited to: macroeconomic conditions, financial services industry consolidation, a declining membership base, concentration of borrowing among members, the introduction of new competing products and services, increased non-Bank competition, quantitative tightening, weakening of the FHLBank System’s GSE status, changes in the deposit and mortgage markets for the Bank’s members, changes that occur as a result of new or changed regulation or legislation, geopolitical instability, climate change and other factors that may have a significant direct or indirect impact on the ability of the Bank to achieve its mission and strategic objectives. The Bank’s various Risk Management Committees monitor economic indicators and the external environment in which the Bank operates for alignment with the Bank's risk appetite. A discussion of various Bank risks was also included in Item 1A. Risk Factors in the Bank's 2022 Form 10-K.

For additional information on operating and business risks to the Bank, see Risk Factors in Item 1A and the "Operating and Business Risks" discussion in the Risk Management section and Legislative and Regulatory Developments of Item 7. in the Bank's 2022 Form 10-K as well as Legislative and Regulatory Developments in Item 2. in this Form 10-Q.

36

Item 1: Financial Statements (unaudited)

Federal Home Loan Bank of Pittsburgh

Statements of Income (unaudited)

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Interest income:
Advances	$	1,071,029	$	271,015	$	3,120,857	$	382,012
Interest-bearing deposits	54,845		11,640		150,582		15,015
Securities purchased under agreements to resell	89,233		15,585		217,988		20,299
Federal funds sold	44,629		27,166		148,900		36,435
Trading securities	1,845		1,858		5,533		5,570
Available-for-sale (AFS) securities	190,518		79,004		516,045		144,726
Held-to-maturity (HTM) securities	10,744		7,192		26,878		20,654
Mortgage loans held for portfolio	37,516		34,145		108,824		99,890
Total interest income	1,500,359		447,605		4,295,607		724,601
Interest expense:
Consolidated obligations - discount notes	220,233		142,549		943,590		181,711
Consolidated obligations - bonds	1,079,869		194,399		2,778,910		318,851
Deposits	10,344		3,923		24,533		5,593
Mandatorily redeemable capital stock and other borrowings	601		867		1,831		1,495
Total interest expense	1,311,047		341,738		3,748,864		507,650
Net interest income	189,312		105,867		546,743		216,951
Provision for credit losses	1,863		3,226		4,080		5,429
Net interest income after provision for credit losses	187,449		102,641		542,663		211,522
Noninterest income (loss):
Net gains (losses) on investment securities (Note 2)	(2,437)		(8,342)		(1,077)		(28,250)
Net gains (losses) on derivatives (Note 5)	7,270		6,648		21,216		15,409
Standby letters of credit fees	8,133		6,443		22,173		17,739
Other, net	1,063		104		2,507		502
Total noninterest income (loss)	14,029		4,853		44,819		5,400
Other expense:
Compensation and benefits	14,828		13,029		43,723		38,889
Other operating	9,890		9,243		28,522		25,494
Finance Agency	1,652		1,145		4,960		3,566
Office of Finance	1,570		1,339		4,379		3,754
Total other expense	27,940		24,756		81,584		71,703
Income before assessments	173,538		82,738		505,898		145,219
Affordable Housing Program (AHP) assessment	17,414		8,317		50,764		14,628
Net income	$	156,124	$	74,421	$	455,134	$	130,591

The accompanying notes are an integral part of these financial statements.

37

Federal Home Loan Bank of Pittsburgh

Statements of Comprehensive Income (Loss) (unaudited)

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Net income	$	156,124	$	74,421	$	455,134	$	130,591
Other comprehensive income (loss):
Net unrealized gains (losses) on AFS securities	(65,343)		(71,853)		(48,659)		(177,261)
Realized (gains) losses on AFS securities included in net income	—		(188)		(489)		(415)
Pension and post-retirement benefits	(8)		189		(25)		567
Total other comprehensive income (loss)	(65,351)		(71,852)		(49,173)		(177,109)
Total comprehensive income (loss)	$	90,773	$	2,569	$	405,961	$	(46,518)

The accompanying notes are an integral part of these financial statements.

38

Federal Home Loan Bank of Pittsburgh

Statements of Condition (unaudited)

(in thousands)	September 30, 2023		December 31, 2022
ASSETS
Cash and due from banks	$	20,328	$	13,242
Interest-bearing deposits (Note 2)	3,040,744		2,471,135
Securities purchased under agreements to resell (Note 2)	3,380,000		3,200,000
Federal funds sold (Note 2)	3,536,000		3,050,000
Investment securities: (Note 2)
Trading securities	212,634		214,008
AFS securities, net; amortized cost of $13,776,200 and $12,265,009	13,649,563		12,190,560
HTM securities; fair value of $1,138,129 and $874,282	1,247,367		956,471
Total investment securities	15,109,564		13,361,039
Advances (Note 3)	76,202,160		68,856,236
Mortgage loans held for portfolio, net (Note 4)	4,663,907		4,590,888
Banking on Business (BOB) loans, net	25,354		22,998
Accrued interest receivable	498,984		310,081
Derivative assets (Note 5)	425,630		228,996
Other assets	34,736		36,552
Total assets	$	106,937,407	$	96,141,167

LIABILITIES AND CAPITAL
Liabilities
Deposits	$	855,987	$	553,279
Consolidated obligations: (Note 6)
Discount notes	12,520,373		33,745,478
Bonds	86,842,548		56,471,455
Total consolidated obligations	99,362,921		90,216,933
Mandatorily redeemable capital stock (Note 7)	27,996		27,763
Accrued interest payable	807,851		287,539
AHP payable	109,974		75,828
Derivative liabilities (Note 5)	10,424		13,438
Other liabilities	256,287		68,272
Total liabilities	101,431,440		91,243,052
Commitments and contingencies (Note 10)
Capital (Note 7)
Capital stock - Class B putable ($100 par value) issued and outstanding shares      38,406 and 34,284, respectively	3,840,618		3,428,405
Retained earnings:
Unrestricted	1,190,967		1,037,182
Restricted	590,082		499,055
Total retained earnings	1,781,049		1,536,237
Accumulated Other Comprehensive Income (Loss) (AOCI)	(115,700)		(66,527)
Total capital	5,505,967		4,898,115
Total liabilities and capital	$	106,937,407	$	96,141,167

The accompanying notes are an integral part of these financial statements.

39

Federal Home Loan Bank of Pittsburgh

Statements of Cash Flows (unaudited)

	Nine months ended September 30,
(in thousands)	2023		2022
OPERATING ACTIVITIES
Net income	$	455,134	$	130,591
Adjustments to reconcile net income to net cash provided by   (used in) operating activities:
Depreciation and amortization (accretion)	(68,142)		57,212
Net change in derivative and hedging activities	(7,117)		861,356
Net realized losses (gains) from sales of AFS securities	(489)		(415)
Net change in fair value adjustments on trading securities	1,566		28,664
Other adjustments, net	5,355		6,756
Net change in:
Accrued interest receivable	(189,341)		(134,891)
Other assets	(600)		4,331
Accrued interest payable	520,396		124,962
Other liabilities	34,701		(13,419)
Total adjustments	296,329		934,556
Net cash provided by (used in) operating activities	$	751,463	$	1,065,147
INVESTING ACTIVITIES
Net change in:
Interest-bearing deposits (including $(365) and $98 (to) from other FHLBanks)	$	(490,832)	$	(1,930,492)
Securities purchased under agreements to resell	(180,000)		(2,230,000)
Federal funds sold	(486,000)		(2,530,000)
Trading securities:
Purchases	—		(14,944)
AFS securities:
Proceeds (includes $798,200, and $476,816 from sales of AFS securities)	2,591,823		1,629,013
Purchases	(3,996,519)		(1,306,448)
HTM securities:
Proceeds	106,740		302,284
Purchases	(398,645)		(101,553)
Advances:
Repaid	556,170,718		194,282,341
Originated	(563,639,027)		(238,985,991)
Mortgage loans held for portfolio:
Principal collected	276,878		513,028
Purchases	(356,582)		(449,944)
Other investing activities, net	(1,026)		544
Net cash provided by (used in) investing activities	$	(10,402,472)	$	(50,822,162)

40

Federal Home Loan Bank of Pittsburgh Statements of Cash Flows (unaudited)
(continued)
	Nine months ended September 30,
(in thousands)	2023		2022
FINANCING ACTIVITIES
Net change in deposits	$	325,604	$	(415,717)
Net proceeds from issuance of consolidated obligations:
Discount notes	473,218,395		237,077,288
Bonds	76,646,396		34,277,767
Payments for maturing and retiring consolidated obligations:
Discount notes	(494,401,699)		(216,132,034)
Bonds	(46,332,725)		(7,235,225)
Proceeds from issuance of capital stock	4,314,023		4,043,101
Payments for repurchase/redemption of capital stock	(3,888,129)		(2,214,385)
Payments for repurchase/redemption of mandatorily redeemable capital stock	(13,448)		(227)
Cash dividends paid	(210,322)		(49,001)
Net cash provided by (used in) financing activities	$	9,658,095	$	49,351,567
Net increase (decrease) in cash and due from banks	$	7,086	$	(405,448)
Cash and due from banks at beginning of the period	13,242		428,190
Cash and due from banks at end of the period	$	20,328	$	22,742
Supplemental disclosures:
Cash activities:
Interest paid	$	3,492,487	$	354,611
AHP payments, net	17,118		25,150
Non-cash activities:
Capital stock reclassified to mandatorily redeemable capital stock	13,681		5,810

The accompanying notes are an integral part of these financial statements.

41

Federal Home Loan Bank of Pittsburgh

Statements of Changes in Capital (unaudited)

	Capital Stock - Putable			Retained Earnings
(in thousands)	Shares	Par Value		Unrestricted		Restricted		Total		AOCI		Total Capital
June 30, 2022	20,630	$	2,063,049	$	965,097	$	464,875	$	1,429,972	$	4,934	$	3,497,955
Comprehensive income (loss)	—	—		59,536		14,885		74,421		(71,852)		2,569
Issuance of capital stock	18,834	1,883,452		—		—		—		—		1,883,452
Repurchase/redemption of capital stock	(8,906)	(890,735)		—		—		—		—		(890,735)
Shares reclassified to mandatorily    redeemable capital stock	(58)	(5,810)		—		—		—		—		(5,810)
Cash dividends	—	—		(24,392)		—		(24,392)		—		(24,392)
September 30, 2022	30,500	$	3,049,956	$	1,000,241	$	479,760	$	1,480,001	$	(66,918)	$	4,463,039
June 30, 2023	39,851	$	3,985,082	$	1,147,317	$	558,857	$	1,706,174	$	(50,349)	$	5,640,907
Comprehensive income (loss)	—	—		124,899		31,225		156,124		(65,351)		90,773
Issuance of capital stock	9,580	958,091		—		—		—		—		958,091
Repurchase/redemption of capital stock	(10,966)	(1,096,670)		—		—		—		—		(1,096,670)
Shares reclassified to mandatorily     redeemable capital stock	(59)	(5,885)		—		—		—		—		(5,885)
Cash dividends	—	—		(81,249)		—		(81,249)		—		(81,249)
September 30, 2023	38,406	$	3,840,618	$	1,190,967	$	590,082	$	1,781,049	$	(115,700)	$	5,505,967
	Capital Stock - Putable			Retained Earnings
(in thousands)	Shares	Par Value		Unrestricted		Restricted		Total		AOCI		Total Capital
December 31, 2021	12,270	$	1,227,050	$	941,033	$	457,378	$	1,398,411	$	110,191	$	2,735,652
Comprehensive income (loss)	—	—		108,209		22,382		130,591		(177,109)		(46,518)
Issuance of capital stock	40,431	4,043,101		—		—		—		—		4,043,101
Repurchase/redemption of capital stock	(22,143)	(2,214,385)		—		—		—		—		(2,214,385)
Shares reclassified to mandatorily    redeemable capital stock	(58)	(5,810)		—		—		—		—		(5,810)
Cash dividends	—	—		(49,001)		—		(49,001)		—		(49,001)
September 30, 2022	30,500	$	3,049,956	$	1,000,241	$	479,760	$	1,480,001	$	(66,918)	$	4,463,039
December 31, 2022	34,284	$	3,428,405	$	1,037,182	$	499,055	$	1,536,237	$	(66,527)	$	4,898,115
Comprehensive income (loss)	—	—		364,107		91,027		455,134		(49,173)		405,961
Issuance of capital stock	43,140	4,314,023		—		—		—		—		4,314,023
Repurchase/redemption of capital stock	(38,881)	(3,888,129)		—		—		—		—		(3,888,129)
Shares reclassified to mandatorily     redeemable capital stock	(137)	(13,681)		—		—		—		—		(13,681)
Cash dividends	—	—		(210,322)		—		(210,322)		—		(210,322)
September 30, 2023	38,406	$	3,840,618	$	1,190,967	$	590,082	$	1,781,049	$	(115,700)	$	5,505,967

The accompanying notes are an integral part of these financial statements.

42

Federal Home Loan Bank of Pittsburgh

Notes to Unaudited Financial Statements

Background Information

The Bank, a federally chartered corporation, is one of 11 district Federal Home Loan Banks (FHLBanks). Each FHLBank operates as a separate entity with its own management, employees and board of directors. The FHLBanks are government-sponsored enterprises (GSEs) that serve the public by increasing the availability of credit for residential mortgages and community development. The Bank provides a readily available, low-cost source of funds to its member institutions. The Bank is a cooperative, which means that current members own nearly all of the outstanding capital stock of the Bank. All holders of the Bank’s capital stock may, to the extent declared by the Board, receive dividends on their capital stock. Regulated financial depositories and insurance companies engaged in residential housing finance that maintain their principal place of business (as defined by Finance Agency regulation) in Delaware, Pennsylvania or West Virginia may apply for membership. Community Development Financial Institutions (CDFIs) which meet membership regulation standards are also eligible to become Bank members. State and local housing associates that meet certain statutory and regulatory criteria may also borrow from the Bank. While eligible to borrow, state and local housing associates are not members of the Bank and, as such, do not hold capital stock.

All members must purchase capital stock in the Bank. The amount of capital stock a member owns is based on membership requirements (membership asset value) and activity requirements (i.e., outstanding advances, letters of credit, and the principal balance of residential mortgage loans sold to the Bank). The Bank considers those members with capital stock outstanding in excess of 10% of total capital stock outstanding to be related parties. See Note 8 - Transactions with Related Parties for additional information.

The Federal Housing Finance Agency (Finance Agency), an independent agency in the executive branch of the U.S. government, supervises and regulates the FHLBanks, Federal Home Loan Mortgage Corporation (Freddie Mac), and Federal National Mortgage Association (Fannie Mae). The Finance Agency’s stated mission is to ensure the housing GSEs fulfill their mission by operating in a safe and sound manner to serve as a reliable source for liquidity and funding for the housing finance market throughout the economic cycle.

As provided by the Federal Home Loan Bank Act (FHLBank Act) and applicable regulations, consolidated obligations are joint and several obligations of all the FHLBanks and are the primary source of funds for the FHLBanks. These funds are primarily used to provide advances, purchase mortgages from members through the MPF® Program and purchase certain investments. See Note 6 - Consolidated Obligations for additional information. The Office of Finance (OF) is a joint office of the FHLBanks established to facilitate the issuance and servicing of the consolidated obligations of the FHLBanks and to prepare the combined quarterly and annual financial reports of all the FHLBanks. Deposits, other borrowings, and capital stock issued to members provide other funds. The Bank primarily invests these funds in short-term investments to provide liquidity. The Bank also provides member institutions with correspondent services, such as wire transfer, safekeeping and settlement with the Federal Reserve.

The accounting and financial reporting policies of the Bank conform to U.S. Generally Accepted Accounting Principles (GAAP). Preparation of the unaudited financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, as well as the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses. Actual results could differ from those estimates. In the opinion of management, all normal recurring adjustments have been included for a fair statement of this interim financial information. These unaudited financial statements should be read in conjunction with the audited financial statements for the year ended December 31, 2022 included in the Bank's 2022 Form 10-K.

43

Notes to Unaudited Financial Statements (continued)

Note 1 – Changes in Accounting Principle and Recently Issued Accounting Standards and Interpretations

    The Bank adopted the following new accounting standards during the nine months ended September 30, 2023.

Standard	Description	Effective Date	Effect on the Financial Statements or Other Significant Matters
ASU 2020-04: Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting, as amended	This ASU provides temporary optional guidance to ease the potential burden in accounting for reference rate reform with optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met.	This guidance became effective for the Bank beginning March 12, 2020, through December 31, 2024.	The Bank’s financial instruments impacted by reference rate reform met the criteria for the Bank to elect certain practical expedients and exceptions to GAAP. As a result, contract modifications were deemed to be minor and impacted derivatives will continue to apply hedge accounting. These elections did not have a material impact on the Bank’s financial condition, results of operations, or cash flows.
ASU 2022-01: Fair Value Hedging – Portfolio Layer Method	This ASU expands the current last-of-layer method to apply fair value hedging by allowing multiple hedged layers of a single closed portfolio under the method. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. Additionally, among other things, this ASU: • expands the scope of the portfolio layer method to include nonprepayable assets • specifies eligible hedging instruments in a single-layer hedge • provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method, and; • specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the closed portfolio.	This ASU was effective for the Bank beginning on January 1, 2023.	The adoption of this ASU did not have an impact on the Bank's financial statements. The Bank will continue to assess opportunities enabled by the new guidance to expand its risk management strategies.
ASU 2022-02: Troubled Debt Restructurings and Vintage Disclosures	This ASU eliminates the accounting guidance for troubled debt restructurings by creditors that have adopted the current expected credit losses methodology while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors made to borrowers experiencing financial difficulty. Additionally, this guidance requires disclosure of current-period gross write-offs by year of origination for financing receivables.	This ASU was effective for the Bank beginning on January 1, 2023.	The adoption of this ASU did not have a material impact on the Bank's financial statements, including the Bank’s MPF portfolio.

    The Bank did not have any recently issued accounting standards which may have an impact on the Bank for the nine months ended September 30, 2023.

44

Notes to Unaudited Financial Statements (continued)

Note 2 – Investments

The Bank has short-term investments and may make other investments in debt securities, which are classified as trading, AFS, or HTM as further described below.

Interest-Bearing Deposits, Securities Purchased under Agreements to Resell, and Federal Funds Sold

The Bank makes short-term investments 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 a credit rating of BBB or greater (investment grade) by an NRSRO.

Interest-bearing deposits and Federal funds sold are unsecured investments. Federal funds sold are generally transacted on an overnight term. Finance Agency regulations include a limit on the amount of unsecured credit the Bank may extend to a counterparty. At September 30, 2023 and December 31, 2022, all investments in interest-bearing deposits and Federal funds sold were repaid according to the contractual terms; no ACL was recorded for these assets at September 30, 2023 and December 31, 2022. Carrying values of interest-bearing deposits and Federal funds exclude accrued interest receivable which was immaterial for all periods presented. At September 30, 2023, none of these investments were with counterparties rated below BBB or with unrated counterparties. These may differ from any internal ratings of the investments by the Bank, if applicable.

Securities purchased under agreements to resell are secured investments. Securities purchased under agreements to resell are generally transacted on an overnight term and have standard market practices that include collateral maintenance provisions. As such, they are evaluated regularly to determine that the securities purchased under agreements to resell are fully collateralized. The counterparty is required to deliver additional collateral if the securities purchased under agreements to resell become under-collateralized, generally by the next business day.

At September 30, 2023 and December 31, 2022, all investments in securities purchased under agreements to resell were repaid according to the contractual terms; no ACL was recorded for these assets at September 30, 2023 and December 31, 2022. Carrying value of securities purchased under agreements to resell excludes accrued interest receivable which was immaterial for all periods presented. At September 30, 2023, none of these investments were with counterparties rated below BBB or with unrated counterparties. These may differ from any internal ratings of the investments by the Bank, if applicable.

Debt Securities

The Bank invests in debt securities, which are classified as trading, AFS, or HTM. Within these investments, the Bank is primarily subject to credit risk related to private label MBS that are supported by underlying mortgage or asset-backed loans. In 2007, the Bank discontinued the purchase of private label MBS. The Bank is prohibited by Finance Agency regulations from purchasing certain higher-risk securities, such as equity securities and debt instruments that are not investment quality, other than certain investments targeted at low-income persons or communities.

At September 30, 2023, total investments securities and accrued interest included $187.3 million of net unsettled purchases which represent a non-cash activity which are not reflected on the Statement of Cash Flows. There was none at December 31, 2022.

    Trading Securities. The following table presents the fair value of trading securities by major security type at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
GSE obligations	$	212,634	$	214,008
Total	$	212,634	$	214,008

45

Notes to Unaudited Financial Statements (continued)

The following table presents net gains (losses) on trading securities for the first nine months of 2023 and 2022.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Net unrealized gains (losses) on trading securities held at period-end	$	(2,437)	$	(8,530)	$	(1,566)	$	(28,664)
Net gains (losses) on trading securities	$	(2,437)	$	(8,530)	$	(1,566)	$	(28,664)

AFS Securities. The following tables presents AFS securities by major security type at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Amortized Cost (1)		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Non-MBS:
U.S. Treasury obligations	$	3,525,273	$	—	$	6,802	$	(6,382)	$	3,525,693
GSE and TVA obligations	968,486		—		22,145		(3,248)		987,383
State or local agency obligations	184,205		—		—		(24,160)		160,045
Total non-MBS	$	4,677,964	$	—	$	28,947	$	(33,790)	$	4,673,121
MBS:
U.S. obligations single-family	$	1,367,053	$	—	$	—	$	(25,135)	$	1,341,918
GSE single-family	2,016,718		—		—		(70,747)		1,945,971
GSE multifamily	5,578,156		—		6,501		(22,961)		5,561,696
Private label	136,309		(11,572)		6,902		(4,782)		126,857
Total MBS	$	9,098,236	$	(11,572)	$	13,403	$	(123,625)	$	8,976,442
Total AFS securities	$	13,776,200	$	(11,572)	$	42,350	$	(157,415)	$	13,649,563

	December 31, 2022
(in thousands)	Amortized Cost (1)		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Non-MBS:
U.S. Treasury obligations	$	5,246,937	$	—	$	3,963	$	(18,407)	$	5,232,493
GSE and TVA obligations	1,111,674		—		16,879		(2,810)		1,125,743
State or local agency obligations	184,310		—		21		(14,068)		170,263
Total non-MBS	$	6,542,921	$	—	$	20,863	$	(35,285)	$	6,528,499
MBS:
U.S. obligations single-family	$	490,952	$	—	$	1,999	$	(9,969)	$	482,982
GSE single-family	1,925,950		—		5,852		(50,765)		1,881,037
GSE multifamily	3,164,964		—		1,364		(10,557)		3,155,771
Private label	140,222		(8,532)		12,443		(1,862)		142,271
Total MBS	$	5,722,088	$	(8,532)	$	21,658	$	(73,153)	$	5,662,061
Total AFS securities	$	12,265,009	$	(8,532)	$	42,521	$	(108,438)	$	12,190,560

Notes:

(1) Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

46

Notes to Unaudited Financial Statements (continued)

The following tables summarize the AFS securities with gross unrealized losses as of September 30, 2023 and December 31, 2022. The gross unrealized losses are aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position.

	September 30, 2023
	Less than 12 Months				Greater than 12 Months				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Non-MBS:
U.S. Treasury obligations	$	136,123	$	(85)	$	206,656	$	(6,297)	$	342,779	$	(6,382)
GSE and TVA obligations	18,680		(169)		31,775		(3,079)		50,455		(3,248)
State or local agency obligations	13,092		(783)		146,854		(23,377)		159,946		(24,160)
Total non-MBS	$	167,895	$	(1,037)	$	385,285	$	(32,753)	$	553,180	$	(33,790)
MBS:
U.S. obligations single-family	$	869,548	$	(11,990)	$	297,370	$	(13,145)	$	1,166,918	$	(25,135)
GSE single-family	531,341		(8,719)		1,369,493		(62,028)		1,900,834		(70,747)
GSE multifamily	2,235,242		(14,446)		1,962,982		(8,515)		4,198,224		(22,961)
Private label	27,129		(894)		26,759		(3,888)		53,888		(4,782)
Total MBS	$	3,663,260	$	(36,049)	$	3,656,604	$	(87,576)	$	7,319,864	$	(123,625)
Total	$	3,831,155	$	(37,086)	$	4,041,889	$	(120,329)	$	7,873,044	$	(157,415)

	December 31, 2022
	Less than 12 Months				Greater than 12 Months				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Non-MBS:
U.S. Treasury obligations	$	2,460,913	$	(8,532)	$	388,509	$	(9,875)	$	2,849,422	$	(18,407)
GSE and TVA obligations	39,276		(2,810)		—		—		39,276		(2,810)
State or local agency obligations	160,372		(14,068)		—		—		160,372		(14,068)
Total non-MBS	$	2,660,561	$	(25,410)	$	388,509	$	(9,875)	$	3,049,070	$	(35,285)
MBS:
U.S. obligations single-family	$	315,111	$	(9,511)	$	15,293	$	(458)	$	330,404	$	(9,969)
GSE single-family	1,406,666		(33,614)		146,908		(17,151)		1,553,574		(50,765)
GSE multifamily	2,310,965		(6,738)		548,201		(3,819)		2,859,166		(10,557)
Private label	34,918		(1,682)		2,357		(180)		37,275		(1,862)
Total MBS	$	4,067,660	$	(51,545)	$	712,759	$	(21,608)	$	4,780,419	$	(73,153)
Total	$	6,728,221	$	(76,955)	$	1,101,268	$	(31,483)	$	7,829,489	$	(108,438)

47

Notes to Unaudited Financial Statements (continued)

Redemption Terms. The amortized cost and fair value of AFS securities by contractual maturity as of September 30, 2023 and December 31, 2022 are presented below. Expected maturities of some securities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees. MBS are not presented by contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

(in thousands)	September 30, 2023				December 31, 2022
Year of Maturity	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Non-MBS:
Due in one year or less	$	237,857	$	237,051	$	1,566,430	$	1,560,311
Due after one year through five years	3,646,136		3,656,096		2,629,759		2,632,374
Due after five years through ten years	661,012		667,111		2,204,799		2,206,358
Due after ten years	132,959		112,863		141,933		129,456
Total non-MBS	4,677,964		4,673,121		6,542,921		6,528,499
MBS	9,098,236		8,976,442		5,722,088		5,662,061
Total AFS securities	$	13,776,200	$	13,649,563	$	12,265,009	$	12,190,560

Interest Rate Payment Terms. The following table details interest payment terms at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Amortized cost of AFS non-MBS:
Fixed-rate	$	4,677,964	$	6,542,921
Variable-rate	—		—
Total non-MBS	$	4,677,964	$	6,542,921
Amortized cost of AFS MBS:
Fixed-rate	$	3,065,602	$	1,069,749
Variable-rate	6,032,634		4,652,339
Total MBS	$	9,098,236	$	5,722,088
Total amortized cost of AFS securities	$	13,776,200	$	12,265,009

Realized Gains (Losses) on AFS Securities. The following table provides a summary of proceeds, gross gains and losses on sales of AFS securities for the three and nine months ended September 30, 2023.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Proceeds from sale of AFS securities	$	—	$	300,409	$	798,200	$	476,816
Gross gains on AFS securities	$	—	$	188	$	489	$	415
Gross losses on AFS securities	—		—		—		—
Net realized gains(losses) from sale of AFS securities	$	—	$	188	$	489	$	415

48

Notes to Unaudited Financial Statements (continued)

HTM Securities. The following tables presents HTM securities by major security type at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Amortized Cost (1)		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
MBS:
U.S. obligations single-family	$	542,363	$	108	$	(15,253)	$	527,218
GSE single-family	399,294		40		(76,087)		323,247
GSE multifamily	258,912		—		(14,857)		244,055
Private label	46,798		—		(3,189)		43,609
Total MBS	$	1,247,367	$	148	$	(109,386)	$	1,138,129
Total HTM securities	$	1,247,367	$	148	$	(109,386)	$	1,138,129

	December 31, 2022
(in thousands)	Amortized Cost (1)		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
MBS:
U.S. obligations single-family	$	162,366	$	155	$	(5,352)	$	157,169
GSE single-family	435,129		74		(63,200)		372,003
GSE multifamily	305,306		—		(10,248)		295,058
Private label	53,670		—		(3,618)		50,052
Total MBS	$	956,471	$	229	$	(82,418)	$	874,282
Total HTM securities	$	956,471	$	229	$	(82,418)	$	874,282

Note:

(1) Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

Redemption Terms. HTM securities are not presented by contractual maturity because they consisted entirely of MBS, whose actual maturities will likely differ from their contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

Interest Rate Payment Terms. The following table details interest rate payment terms at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Amortized cost of HTM MBS:
Fixed-rate	$	1,132,968	$	824,791
Variable-rate	114,399		131,680
Total MBS	$	1,247,367	$	956,471
Total HTM securities	$	1,247,367	$	956,471

49

Notes to Unaudited Financial Statements (continued)

Debt Securities ACL. For HTM securities, there was no ACL at September 30, 2023 and December 31, 2022. For AFS securities, the Bank recorded an ACL only on its private label MBS at September 30, 2023 and December 31, 2022.

AFS Debt Securities - Rollforward of ACL. The following table presents a rollforward of the ACL on AFS securities for the three and nine months ended September 30, 2023 and 2022.

	Private label MBS
	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	10,006	$	5,033	$	8,532	$	2,378
Increases (decreases) for securities in which a previous ACL or OTTI was recorded	1,566		2,487		3,040		5,142
Balance, end of period	$	11,572	$	7,520	$	11,572	$	7,520

Debt Securities ACL Methodology. To evaluate investment securities for credit losses at September 30, 2023, the Bank employs the following methodologies by major security type.

GSE and Other U.S. Obligations. The Bank invests in GSE and other U.S. obligations, which includes Tennessee Valley Authority obligations, single-family MBS, and GSE single-family and multifamily MBS. These securities are issued by Federal Agencies or U.S. government corporations and include MBS issued by these same entities that are directly supported by underlying mortgage loans. All of these securities are highly-rated. In the case of U.S. obligations, they carry an explicit government guarantee. In the case of GSE securities, they are purchased under an assumption that the issuers’ obligation to pay principal and interest on those securities will be honored. As a result, no ACL was recorded on GSE and other U.S. obligations at September 30, 2023 or December 31, 2022.

The Bank only purchases GSE and other U.S. obligations considered investment quality. At September 30, 2023, all of these GSE and other U.S. obligations, based on amortized cost, were rated BBB or above by a NRSRO, based on the lowest long-term credit rating for each security. These may differ from any internal ratings of the securities by the Bank, if applicable.

State or Local Agency Obligations. The Bank invests in state or local agency obligations, such as municipal securities. These securities are subject to credit risk related to a portfolio of state and local agency obligations (i.e., Housing Finance Agency bonds). The Bank has not experienced any payment defaults on these instruments.

    The Bank only purchases state or local agency obligations considered investment quality. At September 30, 2023, all of these state or local agency obligations, based on amortized cost, were rated BBB or above by a NRSRO, based on the lowest long-term credit rating for each security. These may differ from any internal ratings of the securities by the Bank, if applicable.

The Bank evaluates AFS state or local agency obligations for an ACL based on a credit assessment of the issuer, or guarantor. If the Bank determines that an ACL should be recognized, it is limited to the unrealized loss of the state or local agency obligation, including zero if it is in an unrealized gain position. At September 30, 2023 and December 31, 2022, the Bank expected to receive all cash flows contractually due, and no ACL was recorded on AFS state or local agency obligations.

    Private Label MBS. The Bank also holds investments in private label MBS. The Bank has not purchased any private label MBS since 2007. However, many of these securities have subsequently experienced significant credit deterioration. As of September 30, 2023, 17.3% of private label MBS (AFS and HTM combined, based on amortized cost) were rated BBB or above by a NRSRO and the remaining securities were either rated less than BBB or were unrated. To determine whether an ACL is necessary on these securities, the Bank uses cash flow analyses.

The Bank's evaluation includes estimating the projected cash flows that the Bank is likely to collect based on an assessment of available information, including the structure of the applicable security and certain assumptions such as:

▪the remaining payment terms for the security;

▪prepayment speeds based on underlying loan-level borrower and loan characteristics;

▪expected default rates based on underlying borrower and loan characteristics;

▪expected loss severity based on underlying borrower and loan characteristics;

▪expected housing price changes; and

▪expected interest-rate assumptions.

50

Notes to Unaudited Financial Statements (continued)

The Bank performed a cash flow analysis using a third-party model to assess whether the entire amortized cost basis of its private label MBS securities will be recovered. The projected cash flows are based on a number of assumptions and expectations, and the results of the model can vary with changes in assumptions and expectations. The projected cash flows, determined based on the model approach, reflect a best estimate scenario and include a base case housing price forecast.

Note 3 – Advances

    General Terms. The Bank offers a wide-range of fixed- and variable-rate advance products with different maturities, interest rates, payment characteristics and optionality. Fixed-rate advances generally have maturities ranging from overnight to 30 years. Variable-rate advances generally have maturities ranging up to 10 years, and the interest rates reset periodically at a fixed spread to SOFR.

The following table details the Bank’s advances portfolio by year of redemption and weighted-average interest rate as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023				December 31, 2022
Year of Redemption	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	36,172,201	5.22	%	$	28,672,440	4.28	%
Due after 1 year through 2 years	25,051,644		5.12		21,421,482		4.17
Due after 2 years through 3 years	11,610,152		5.28		13,136,090		4.30
Due after 3 years through 4 years	2,001,152		3.72		4,966,948		4.38
Due after 4 years through 5 years	1,678,407		4.33		865,373		3.37
Thereafter	180,126		3.29		166,538		2.84
Total par value	76,693,682		5.13	%	69,228,871		4.24	%
Deferred prepayment fees	(639)				(940)
Hedging adjustments	(490,883)				(371,695)
Total book value (1)	$	76,202,160			$	68,856,236

Notes:

(1) Amounts exclude accrued interest receivable of $406.7 million and $241.8 million at September 30, 2023 and December 31, 2022.

The Bank offers certain advances to members that provide a member the right, based upon predetermined exercise dates, to prepay the advance prior to maturity without incurring prepayment or termination fees (returnable advances).

At September 30, 2023 and December 31, 2022, the Bank did not have any advances with embedded features that met the requirements to separate the embedded feature from the host contract and designate the embedded feature as a stand-alone derivative.

The following table summarizes advances by the earlier of year of redemption or next call date as of September 30, 2023 and December 31, 2022.

	Year of Redemption or Next Call Date
(in thousands)	September 30, 2023		December 31, 2022
Due in 1 year or less	$	36,552,201	$	28,962,440
Due after 1 year through 2 years	25,039,144		21,131,482
Due after 2 years through 3 years	11,242,652		13,136,090
Due after 3 years through 4 years	2,001,152		4,966,948
Due after 4 years through 5 years	1,678,407		865,373
Thereafter	180,126		166,538
Total par value	$	76,693,682	$	69,228,871

51

Notes to Unaudited Financial Statements (continued)

Interest Rate Payment Terms. The following table details interest rate payment terms by year of redemption for advances as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate – overnight	$	1,373,249	$	1,792,810
Fixed-rate – term:
Due in 1 year or less	14,499,885		21,547,006
Thereafter	14,103,381		7,429,914
Total fixed-rate	29,976,515		30,769,730
Variable-rate:
Due in 1 year or less	20,299,067		5,332,624
Thereafter	26,418,100		33,126,517
Total variable-rate	46,717,167		38,459,141
Total par value	$	76,693,682	$	69,228,871

Credit Risk Exposure and Security Terms. The Bank’s potential credit risk from advances is primarily concentrated in commercial banks. As of September 30, 2023, the Bank had advances of $60.2 billion outstanding to the five largest borrowers, which represented 78.5% of the total principal amount of advances outstanding. Of these five, two had outstanding advance balances that were in excess of 10% of the total portfolio at September 30, 2023.

As of December 31, 2022, the Bank had advances of $54.3 billion outstanding to the five largest borrowers, which represented 78.5% of the total principal amount of advances outstanding. Of these five, three had outstanding advance balances that were in excess of 10% of the total portfolio at December 31, 2022.

Advances ACL. The Bank manages its total credit exposure (TCE), which includes advances, letters of credit, advance commitments, and other credit product exposure, through an integrated approach. This approach generally requires a credit limit to be established for each borrower and an ongoing review of each borrower’s financial condition in conjunction with the Bank's collateral and lending policies to limit risk of loss while balancing each borrower's need for a reliable source of funding. Eligible collateral and collateral requirements can vary based on the type of member: commercial banks, insurance companies, credit unions, de novo banks and CDFIs.

In addition, the Bank lends to its members in accordance with the FHLBank Act and Finance Agency regulations. Specifically, the FHLBank Act requires the Bank to obtain collateral to fully secure credit products. The estimated value of the collateral required to secure each member’s credit products is calculated by applying collateral weightings, or haircuts, to the value of the collateral. The Bank primarily accepts cash, certain investment securities, residential mortgage loans, and other real estate related assets as collateral. In addition, Community Financial Institutions (CFIs) are eligible to utilize expanded statutory collateral provisions for small business, agriculture, and community development loans. The Bank’s capital stock owned by the borrowing member is pledged as secondary collateral. Collateral arrangements may vary depending upon borrower credit quality, financial condition and performance, borrowing capacity, and overall credit exposure to the borrower. The Bank can require additional or substitute collateral to help ensure that credit products continue to be secured by adequate collateral. Management of the Bank believes that these policies effectively manage the Bank’s credit risk from credit products.

Based upon the financial condition of the member, the Bank either allows a member to retain physical possession of the collateral assigned to the Bank or requires the member to specifically deliver physical possession or control of the collateral to the Bank or its custodians. However, regardless of the member's financial condition, the Bank always takes possession or control of securities used as collateral. The Bank perfects its security interest in all pledged collateral. The FHLBank Act affords any security interest granted to the Bank by a member (or an affiliate of a member) priority over the claims or rights of any other party, except for claims or rights of a third-party that would be otherwise entitled to priority under applicable law and that are held by a bona fide purchaser for value or by a secured party holding a prior perfected security interest.

Using a risk-based approach, the Bank considers the payment status, collateral types and concentration levels, and borrower’s financial condition to be indicators of credit quality on its credit products. At September 30, 2023 and December 31, 2022, the Bank had rights to collateral on a member-by-member basis with a value in excess of its outstanding extensions of credit.

52

Notes to Unaudited Financial Statements (continued)

    The Bank continues to evaluate and, as necessary, make changes to its collateral guidelines based on current market conditions. At September 30, 2023 and December 31, 2022, the Bank did not have any credit products that were past due, on nonaccrual status, or considered impaired. In addition, the Bank did not have any modifications related to advances with borrowers experiencing financial difficulties during the first nine months of 2023.

The Bank evaluates its advances for an ACL on a collective, or pooled basis unless an individual assessment is deemed necessary because the instruments do not possess similar risk characteristics. The Bank pools advances by member type, as noted above. Based on the collateral held as security, the Bank's credit extension and collateral policies and repayment history on advances, including that the Bank has not incurred any credit losses since inception, the Bank has not recorded any ACL at September 30, 2023 or December 31, 2022.

Note 4 – Mortgage Loans Held for Portfolio

Under the MPF Program, the Bank invests in mortgage loans that it purchases from its participating members and housing associates. The Bank’s participating members originate, service, and credit enhance residential mortgage loans that are sold to the Bank. See Note 8 for further information regarding transactions with related parties.

The following table presents balances as of September 30, 2023 and December 31, 2022 for mortgage loans held for portfolio.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate long-term single-family mortgages (1)	$	4,485,907	$	4,388,461
Fixed-rate medium-term single-family mortgages (1)	122,402		140,270
Total par value	4,608,309		4,528,731
Premiums	69,559		73,703
Discounts	(11,607)		(10,224)
Hedging adjustments	617		1,918
Total mortgage loans held for portfolio (2)	$	4,666,878	$	4,594,128
Allowance for credit losses on mortgage loans	(2,971)		(3,240)
Mortgage loans held for portfolio, net	$	4,663,907	$	4,590,888

Note:

(1) Long-term is defined as greater than 15 years. Medium-term is defined as a term of 15 years or less.

(2) Amounts exclude accrued interest receivable of $23.8 million at September 30, 2023 and $22.5 million at December 31, 2022.

The following table details the par value of mortgage loans held for portfolio outstanding categorized by type as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Conventional loans	$	4,502,487	$	4,415,876
Government-guaranteed/insured loans	105,822		112,855
Total par value	$	4,608,309	$	4,528,731

Conventional MPF Loans - Credit Enhancements (CE). The conventional MPF loans held for portfolio are required to be credit enhanced as determined through the use of a validated model so the risk of loss is limited to the losses within the Bank's risk tolerance. The Bank and its participating financial institution (PFI) share the risk of credit losses on conventional MPF loan products held for portfolio, by structuring potential losses into layers with respect to each master commitment. After considering the borrower’s equity and any Primary Mortgage Insurance (PMI), credit losses on mortgage loans in a master commitment are then absorbed by the Bank’s First Loss Account (FLA). If applicable to the MPF product, the Bank will withhold a PFI’s scheduled performance CE fee in order to reimburse the Bank for any losses allocated to the FLA (recaptured CE Fees). If the FLA is exhausted, the credit losses are then absorbed by the PFI up to an agreed upon CE amount. The CE amount could be covered by supplemental mortgage insurance (SMI) obtained by the PFI. Thereafter, any remaining credit losses are absorbed by the Bank.

Payment Status of Mortgage Loans. Payment status is the key credit quality indicator for conventional mortgage loans and allows the Bank to monitor the migration of past due loans. Past due loans are those where the borrower has failed to make

53

Notes to Unaudited Financial Statements (continued)

timely payments of principal and/or interest in accordance with the terms of the loan. Other delinquency statistics include nonaccrual loans and loans in process of foreclosure.

Credit Quality Indicator for Conventional Mortgage Loans. The following table presents the payment status for conventional mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Origination Year
Payment Status, at amortized cost (1)	Prior to 2019		2019 to 2023		Total
Past due 30-59 days	$	21,655	$	25,122	$	46,777
Past due 60-89 days	6,661		6,507		13,168
Past due 90 days or more	8,647		9,116		17,763
Total past due loans	$	36,963	$	40,745	$	77,708
Current loans	1,177,602		3,303,457		4,481,059
Total conventional loans	$	1,214,565	$	3,344,202	$	4,558,767
	December 31, 2022
	Origination Year
Payment Status, at amortized cost (1)	Prior to 2018		2018 to 2022		Total
Past due 30-59 days	$	13,369	$	19,806	$	33,175
Past due 60-89 days	4,100		6,321		10,421
Past due 90 days or more	8,216		9,856		18,072
Total past due loans	$	25,685	$	35,983	$	61,668
Current loans	1,109,321		3,307,745		4,417,066
Total conventional loans	$	1,135,006	$	3,343,728	$	4,478,734

Note:

(1) The amortized cost at September 30, 2023 and December 31, 2022 excludes accrued interest receivable.

Other Delinquency Statistics. The following table presents the delinquency statistics for the Bank’s mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	8,974		$	947		$	9,921
Serious delinquency rate (3)	0.4		%	1.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	1,707		$	1,707
Loans on nonaccrual status	$	20,997		$	—		$	20,997
	December 31, 2022
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	7,873		$	1,352		$	9,225
Serious delinquency rate (3)	0.4		%	2.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	3,182		$	3,182
Loans on nonaccrual status	$	20,950		$	—		$	20,950

Note:

(1) Amounts presented at amortized cost.

(2) Includes loans where the decision of foreclosure or similar alternative such as pursuit of deed-in-lieu has been reported. Loans in process of foreclosure are included in past due or current loans dependent on their delinquency status.

54

Notes to Unaudited Financial Statements (continued)

(3) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the total loan portfolio class.

Mortgage Loans Held for Portfolio ACL. Conventional MPF - Expected Losses. Conventional loans are evaluated collectively when similar risk characteristics exist. Conventional loans that do not share risk characteristics with other pools are evaluated for expected credit losses on an individual basis. The Bank determines its allowances 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. The Bank uses a third-party model to estimate expected credit losses over the life of the loans. The estimate of the expected credit losses includes coverage of certain losses by PMI, if applicable. The model relies on a number of inputs, such as housing price forecasts and interest rates as well as historical borrower behavior experience. The Bank’s reasonable and supportable forecast for housing prices is two years. The Bank then reverts to historic averages over a three year period. The Bank may incorporate a qualitative adjustment to the model results, if deemed appropriate, based on current market conditions or results.

The estimated credit loss on collateral dependent loans is charged-off against the reserve. However, if the estimated loss can be recovered through CE, a receivable is established, resulting in a net charge-off. A mortgage loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be substantially through the sale of the underlying collateral. The expected credit loss of a collateral dependent mortgage loan to determine the charge-off is equal to the difference between the amortized cost of the loan and the estimated fair value of the collateral, less estimated selling costs. The estimate of the expected credit losses includes coverage of certain losses by PMI, if applicable. The estimated fair value of the collateral is determined based on a value provided by a third-party’s retail-based Automated Valuation Model (AVM). The Bank adjusts the AVM based on the amount it has historically received on liquidations. Expected recoveries of prior charge-offs, as determined by a third-party model, if any, are included in the allowance for credit losses.

Conventional MPF - Expected Recoveries. The Bank recognizes a recovery through the provision (reversal) for credit losses when expected lifetime credit losses are less than the amounts previously charged-off. This includes potentially recording a negative ACL for certain of the Bank's MPF products. The reduction to the ACL for expected recoveries is partially offset by a reversal of expected CE, resulting in a net impact to the Bank's Statements of Condition.

Conventional MPF - Application of CE. The Bank also incorporates associated CE, if any, to determine its estimate of expected credit losses. The Bank records an ACL for expected credit losses that exceed the amount the Bank expects to receive from available CE. Potential recoveries from CE for conventional loans are evaluated at the individual master commitment level to determine the CE available to recover losses on loans under each individual master commitment.

Conventional MPF - Rollforward of ACL

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	3,256	$	3,499	$	3,240	$	3,412
(Charge-offs) Recoveries, net (1)	(21)		99		9		326
Provision (reversal) for credit losses	(264)		33		(278)		(107)
Balance, end of period	$	2,971	$	3,631	$	2,971	$	3,631

Note:

(1) Net charge-offs that the Bank does not expect to recover through CE receivable.

Government-Guaranteed or -Insured Mortgage Loans. The Bank invests in government-guaranteed or insured fixed-rate mortgage loans secured by one-to-four family residential properties. Government-guaranteed or insured mortgage loans are those insured or guaranteed by the Federal Housing Administration (FHA), Department of Veterans Affairs (VA), the Rural Housing Service (RHS) of the Department of Agriculture and/or by 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 guarantee or insurance with respect to defaulted government-guaranteed or -insured mortgage loans. Any losses on these loans that are not recovered from the issuer or the guarantor are absorbed by the servicer. Therefore, the Bank only has credit risk for these loans if the servicer fails to pay for losses not covered by the guarantee or insurance, but in such instance, the Bank would have recourse against the servicer for such failure. Based on the Bank's assessment of its servicers and the collateral backing the loans, the risk of loss was immaterial. Consequently, the Bank has not recorded an ACL for government-guaranteed or -insured mortgage loans at September 30, 2023 or December 31, 2022. Furthermore, none of these mortgage loans have been placed on non-accrual status because of the U.S. government guarantee or insurance on these loans and the contractual obligation of the loan servicer to repurchase the loans when certain criteria are met.

55

Notes to Unaudited Financial Statements (continued)

Real Estate Owned (REO). The amount of REO reported in Other assets on the Statement of Condition was immaterial at both September 30, 2023 and December 31, 2022.

Note 5 – Derivatives and Hedging Activities

Nature of Business Activity. The Bank is exposed to interest rate risk primarily from the effect of interest rate changes on its interest-earning assets and interest-bearing liabilities that finance these assets. The goal of the Bank's interest rate risk management strategy is not to eliminate interest rate risk but to manage it within appropriate limits. To mitigate the risk of loss, the Bank has established policies and procedures that include guidelines on the amount of exposure to interest rate changes it is willing to accept. In addition, the Bank monitors the risk to its interest income, net interest margin and average maturity of interest-earning assets and interest-bearing liabilities. For additional information on the Bank's derivative transactions, see Note 7 - Derivatives and Hedging Activities to the audited financial statements in the Bank's 2022 Form 10-K.

Derivative transactions may be executed either with a counterparty (referred to as uncleared derivatives) or cleared through a Futures Commission Merchant (i.e., clearing agent) with a Derivatives Clearing Organization (referred to as cleared derivatives). The Bank is not a derivatives dealer and does not trade derivatives for short-term profit. The Bank transacts uncleared derivatives with counterparties that are large banks and major broker-dealers. Some of these banks and broker-dealers or their affiliates buy, sell, and distribute consolidated obligations.

Financial Statement Effect and Additional Financial Information. The following tables summarize the notional amount and fair value of derivative instruments and total derivatives assets and liabilities. Total derivative assets and liabilities include the effect of netting adjustments and cash collateral. For purposes of this disclosure, the derivative values include the fair value of derivatives and the related accrued interest.

	September 30, 2023
(in thousands)	Notional Amount of Derivatives		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments:
Interest rate swaps	$	84,830,852	$	309,440	$	941,436
Derivatives not designated as hedging instruments:
Interest rate swaps	$	2,482,690	$	2,222	$	24,786
Interest rate caps or floors	1,145,000		6,218		—
Mortgage delivery commitments	24,854		7		120
Total derivatives not designated as hedging instruments:	$	3,652,544	$	8,447	$	24,906
Total derivatives before netting and collateral adjustments	$	88,483,396	$	317,887	$	966,342
Netting adjustments and cash collateral (1)			107,743		(955,918)
Derivative assets and derivative liabilities as reported on the Statement of Condition			$	425,630	$	10,424

56

Notes to Unaudited Financial Statements (continued)

	December 31, 2022
(in thousands)	Notional Amount of Derivatives		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments:
Interest rate swaps	$	69,039,626	$	53,340	$	985,134
Derivatives not designated as hedging instruments:
Interest rate swaps	$	2,176,879	$	2,112	$	24,457
Interest rate caps or floors	975,000		5,164		—
Mortgage delivery commitments	10,287		10		41
Total derivatives not designated as hedging instruments:	$	3,162,166	$	7,286	$	24,498
Total derivatives before netting and collateral adjustments	$	72,201,792	$	60,626	$	1,009,632
Netting adjustments and cash collateral (1)			168,370		(996,194)
Derivative assets and derivative liabilities as reported on the Statement of   Condition			$	228,996	$	13,438

Note:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022.

The following table presents, by type of hedged item, the gains (losses) on derivatives and the related hedged items in fair value hedging relationships, which also includes amortization of basis adjustments related to hedged items in discontinued fair value hedge relationships, and the impact of those derivatives on the Bank’s net interest income. Also included is the amortization of basis adjustments related to mortgage delivery commitments, which are characterized as derivatives, but are not designated in fair value hedge relationships.

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2023
Hedged item type:
Advances	$	36,853	$	(36,808)	$	91,203	$	91,248	$	1,071,029
AFS securities	138,160		(138,366)		47,439		47,233		190,518
Mortgage loans held for portfolio	—		(119)		—		(119)		37,516
Consolidated obligations – discount notes	4,507		(2,215)		(4,712)		(2,420)		(220,233)
Consolidated obligations – bonds	53,846		(54,243)		(179,861)		(180,258)		(1,079,869)
Total	$	233,366	$	(231,751)	$	(45,931)	$	(44,316)
Nine months ended September 30, 2023
Hedged item type:
Advances	$	119,382	$	(119,191)	$	225,959	$	226,150	$	3,120,857
AFS securities	100,815		(100,467)		138,872		139,220		516,045
Mortgage loans held for portfolio	—		(423)		—		(423)		108,824
Consolidated obligations – discount notes	3,573		(5,584)		(6,778)		(8,789)		(943,590)
Consolidated obligations – bonds	66,758		(67,189)		(450,544)		(450,975)		(2,778,910)
Total	$	290,528	$	(292,854)	$	(92,491)	$	(94,817)

57

Notes to Unaudited Financial Statements (continued)

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2022
Hedged item type:
Advances	$	169,040	$	(169,040)	$	7,543	$	7,543	$	271,015
AFS securities	205,163		(203,981)		13,895		15,077		79,004
Mortgage loans held for portfolio	—		(385)		—		(385)		34,145
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(142,549)
Consolidated obligations – bonds	(423,483)		424,114		(20,976)		(20,345)		(194,399)
Total	$	(51,007)	$	52,486	$	2,390	$	3,869
Nine months ended September 30, 2022
Hedged item type:
Advances	$	426,080	$	(426,158)	$	(41,764)	$	(41,842)	$	382,012
AFS securities	573,187		(570,087)		(5,437)		(2,337)		144,726
Mortgage loans held for portfolio	—		(1,237)		—		(1,237)		99,890
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(181,711)
Consolidated obligations – bonds	(1,023,493)		1,024,111		31,147		31,765		(318,851)
	$	(25,953)	$	28,407	$	(14,126)	$	(11,672)

The following table presents the cumulative amount of fair value hedging adjustments and the related carrying amount of the hedged items.

(in thousands)	September 30, 2023
Hedged item type	Carrying Amount of Hedged Assets/Liabilities(1)		Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of the Hedged Assets/Liabilities		Fair Value Hedging Adjustments for Discontinued Hedging Relationships		Total Amount of Fair Value Hedging Adjustments
Advances	$	18,085,427	$	(490,190)	$	(693)	$	(490,883)
AFS securities	6,373,108		(614,186)		767		(613,419)
Consolidated obligations – discount notes	2,575,584		(1,473)		—		(1,473)
Consolidated obligations – bonds	55,439,243		(1,005,089)		—		(1,005,089)

(in thousands)	December 31, 2022
Hedged item type	Carrying Amount of Hedged Assets/Liabilities (1)		Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of the Hedged Assets/Liabilities		Fair Value Hedging Adjustments for Discontinued Hedging Relationships		Total Amount of Fair Value Hedging Adjustments
Advances	$	9,516,520	$	(370,776)	$	(918)	$	(371,694)
AFS securities	6,265,480		(513,825)		873		(512,952)
Consolidated obligations – discounted notes	17,481,373		(7,057)		—		(7,057)
Consolidated obligations – bonds	33,603,677		(1,072,289)		10		(1,072,279)

Note:

(1) Includes carrying value of hedged items in current fair value hedging relationships.

58

Notes to Unaudited Financial Statements (continued)

The following table presents net gains (losses) related to derivatives not designated as hedging instruments in noninterest income.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Derivatives not designated as hedging instruments:
Economic hedges:
Interest rate swaps	$	5,913	$	7,953	$	19,717	$	15,795
Interest rate caps or floors	(1,273)		1,338		(2,230)		3,779
Net interest settlements	3,941		(2,137)		5,850		(1,070)
To Be Announced (TBA)	—		—		—		74
Mortgage delivery commitments	(731)		(427)		(856)		(2,753)
Other	—		—		1		1
Total net gains (losses) related to derivatives not designated as hedging instruments	$	7,850	$	6,727	$	22,482	$	15,826
Other - price alignment amount on cleared derivatives (1)	(580)		(79)		(1,266)		(417)
Net gains (losses) on derivatives	$	7,270	$	6,648	$	21,216	$	15,409

Notes:

(1) This amount is for derivatives for which variation margin is characterized as a daily settled contract.

The Bank had no active cash flow hedging relationships during the first nine months of 2023 or 2022.

Managing Credit Risk on Derivatives. The Bank is subject to credit risk due to the risk of nonperformance by counterparties to its derivative transactions. The Bank manages counterparty credit risk through credit analysis, collateral requirements, and adherence to the requirements set forth in its policies, U.S. Commodity Futures Trading Commission regulations, and Finance Agency regulations.

Uncleared Derivatives. For uncleared derivatives, the degree of credit risk depends on the extent to which netting arrangements are included in such contracts to mitigate the risk. The Bank requires collateral agreements with collateral delivery thresholds on all uncleared derivatives.

Uncleared derivative transactions executed on or after the effective date of the initial margin rules, are subject to two-way initial margin requirements as mandated by the Wall Street Reform and Consumer Protection Act (referred to as Dodd-Frank Act) if the Bank’s aggregate uncleared derivative transactions exposure to a counterparty exceeds a specific threshold. The initial margin is required to be certain investment securities that are held at a third-party custodian and do not change ownership, except upon the occurrence of certain events, including an event of default due to bankruptcy, insolvency, or similar proceeding. As of September 30, 2023, the Bank did not exceed initial margin thresholds and was not required to post two-way initial margin.

Generally, the Bank's ISDA agreements for uncleared derivatives have collateral delivery thresholds set to zero (subject to minimum transfer amounts). The Bank has a small number of legacy trades that require the Bank to post additional collateral with its counterparties if there is deterioration in the Bank's credit rating and the net liability position exceeds the relevant threshold. As of September 30, 2023, the net liability position of these trades, collateral posted and potential additional credit contingent collateral amounts are all immaterial.

    Cleared Derivatives. For cleared derivatives, Derivative Clearing Organizations (Clearing Houses) are the Bank's counterparties. The Clearing Houses notify the clearing agent of the required initial and variation margin. The requirement that the Bank post initial margin and exchange variation margin settlement payments through the clearing agent, which notifies the Bank on behalf of the Clearing Houses, exposes the Bank to institutional credit risk in the event that the clearing agent or the Clearing Houses fail to meet their respective obligations. The use of cleared derivatives is intended to mitigate credit risk exposure through the use of a central counterparty instead of individual counterparties. Collateral postings and variation margin settlement payments are made daily, through a clearing agent, for changes in the value of cleared derivatives. Initial margin is the amount calculated based on anticipated exposure to future changes in the value of a swap and protects the Clearing Houses from market risk in the event of default by one of their respective clearing agents. Variation margin is paid daily to settle the exposure arising from changes in the market value of the position. The Bank uses either CME Clearing or LCH Ltd. as the Clearing House for all cleared derivative transactions. Variation margin payments are characterized as settled to market, rather than collateral. Initial margin is considered collateralized to market.

59

Notes to Unaudited Financial Statements (continued)

Based on credit analyses and collateral requirements, the Bank does not anticipate credit losses related to its derivative agreements. See Note 9 - Estimated Fair Values for discussion regarding the Bank's fair value methodology for derivative assets and liabilities, including an evaluation of the potential for the fair value of these instruments to be affected by counterparty credit risk.

For cleared derivatives, the Clearing House determines initial margin requirements and generally credit ratings are not factored into the initial margin. However, clearing agents may require additional initial margin to be posted based on credit considerations, including but not limited to credit rating downgrades. The Bank was not required by its clearing agents to post additional initial margin at September 30, 2023.

    Offsetting of Derivative Assets and Derivative Liabilities. When it has met the netting requirements, the Bank presents derivative instruments, related cash collateral, received or pledged, and associated accrued interest on a net basis by clearing agent and/or by counterparty. The Bank has analyzed the enforceability of offsetting rights incorporated in its cleared derivative transactions and determined that the exercise of those offsetting rights by a non-defaulting party under these transactions should be upheld under applicable law upon an event of default including a bankruptcy, insolvency or similar proceeding involving the Clearing Houses or the Bank’s clearing agent, or both. Based on this analysis, the Bank nets derivative fair values on all of its transactions through a particular clearing agent with a particular Clearing House (including settled variation margin) into one net asset or net liability exposure. Initial margin posted to the clearing house is presented as a derivative asset.

The following tables present separately the fair value of derivative instruments meeting or not meeting netting requirements. Gross recognized amounts do not include the related collateral received from or pledged to counterparties. Net amounts reflect the adjustments of collateral received from or pledged to counterparties.

September 30, 2023
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	311,792	$	(302,630)	$	9,162	$	7	$	9,169
Cleared	6,088		410,373		416,461		—		416,461
Total	$	317,880	$	107,743	$	425,623	$	7	$	425,630
Derivative Liabilities
Uncleared	$	951,839	$	(949,860)	$	1,979	$	120	$	2,099
Cleared	14,383		(6,058)		8,325		—		8,325
Total	$	966,222	$	(955,918)	$	10,304	$	120	$	10,424

60

Notes to Unaudited Financial Statements (continued)

December 31, 2022
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	43,901	$	(41,679)	$	2,222	$	10	$	2,232
Cleared	16,715		210,049		$	226,764	—		226,764
Total Derivative Assets	$	60,616	$	168,370	$	228,986	$	10	$	228,996
Derivative Liabilities
Uncleared	$	1,003,917	$	(992,167)	$	11,750	$	41	$	11,791
Cleared	5,674		(4,027)		1,647		—		1,647
Total Derivative Liabilities	$	1,009,591	$	(996,194)	$	13,397	$	41	13,438

Note:

(1) Represents derivatives that are not subject to an enforceable netting agreement (e.g., mortgage delivery commitments).

61

Notes to Unaudited Financial Statements (continued)

Note 6 – Consolidated Obligations

Consolidated obligations consist of bonds and discount notes. The FHLBanks issue consolidated obligations through the OF as their agent. In connection with each debt issuance, each FHLBank specifies the amount of debt it wants to have issued on its behalf. The OF tracks the amount of debt issued on behalf of each FHLBank. The Bank records as a liability its specific portion of consolidated obligations for which it is the primary obligor.

The Finance Agency and the U.S. Secretary of the Treasury oversee the issuance of FHLBank debt through the OF. Bonds may be issued to raise short-, intermediate-, and long-term funds for the FHLBanks and are not subject to any statutory or regulatory limits on their maturity. Discount notes are issued primarily to raise short-term funds and have original maturities of up to one year. These notes generally sell at less than their face amount and are redeemed at par value when they mature.

Although the Bank is primarily liable for its portion of consolidated obligations, the Bank is also jointly and severally liable with the other ten FHLBanks for the payment of principal and interest on all consolidated obligations of each of the FHLBanks. The Finance Agency, at its discretion, may require any FHLBank to make principal or interest payments due on any consolidated obligations whether or not the consolidated obligation represents a primary liability of such FHLBank.

Although an FHLBank has never paid the principal or interest payments due on a consolidated obligation on behalf of another FHLBank, if one FHLBank is required to make such payments, Finance Agency regulations provide that the paying FHLBank is entitled to reimbursement from the non-complying FHLBank for any payments made on its behalf and other associated costs including interest to be determined by the Finance Agency. If the Finance Agency determines that the non-complying FHLBank is unable to satisfy its repayment obligations, then the Finance Agency may allocate the outstanding liabilities of the non-complying FHLBank among the remaining FHLBanks on a pro rata basis in proportion to each FHLBank’s participation in all consolidated obligations outstanding. However, the Finance Agency reserves the right to allocate the outstanding liabilities for the consolidated obligations among the FHLBanks in any other manner it may determine to ensure that the FHLBanks operate in a safe and sound manner. The par amounts of the 11 FHLBanks’ outstanding consolidated obligations were $1,229.9 billion at September 30, 2023 and $1,181.7 billion at December 31, 2022. Additional detailed information regarding consolidated obligations including general terms and interest rate payment terms can be found in Note 9 to the audited financial statements in the Bank's 2022 Form 10-K.

The following table details interest rate payment terms for the Bank's consolidated obligation bonds as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Par value of consolidated bonds:
Fixed-rate	$	64,145,995	$	39,983,295
Step-up	2,083,000		3,124,000
Floating-rate	21,600,400		14,408,000
Total par value	$	87,829,395	$	57,515,295
Bond premiums	$	38,861	$	47,515
Bond discounts	(14,546)		(14,069)
Concession fees	(6,073)		(5,008)
Hedging adjustments	(1,005,089)		(1,072,278)
Total book value	$	86,842,548	$	56,471,455

62

Notes to Unaudited Financial Statements (continued)

Maturity Terms. The following table presents a summary of the Bank’s consolidated obligation bonds outstanding by year of contractual maturity and weighted-average interest rate at September 30, 2023 and December 31, 2022.

	September 30, 2023				December 31, 2022
(dollars in thousands) Year of Contractual Maturity	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	57,480,770	4.79	%	$	30,747,975	3.72	%
Due after 1 year through 2 years	14,447,865		4.26		11,491,385		3.09
Due after 2 years through 3 years	6,557,100		2.20		3,263,725		2.16
Due after 3 years through 4 years	3,879,200		2.22		6,557,800		1.25
Due after 4 years through 5 years	2,204,250		3.61		1,850,300		3.09
Thereafter	3,260,210		2.68		3,604,110		2.37
Total par value	$	87,829,395	4.29	%	$	57,515,295	3.12	%

The following table presents the Bank’s consolidated obligation bonds outstanding between noncallable and callable as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Noncallable	$	47,274,895	$	35,816,795
Callable	40,554,500		21,698,500
Total par value	$	87,829,395	$	57,515,295

The following table presents consolidated obligation bonds outstanding by the earlier of contractual maturity or next call date as of September 30, 2023 and December 31, 2022.

(in thousands) Year of Contractual Maturity or Next Call Date	September 30, 2023		December 31, 2022
Due in 1 year or less	$	72,520,270	$	47,036,975
Due after 1 year through 2 years	10,188,365		6,573,385
Due after 2 years through 3 years	1,997,100		1,049,725
Due after 3 years through 4 years	617,200		1,035,800
Due after 4 years through 5 years	1,397,250		392,300
Thereafter	1,109,210		1,427,110
Total par value	$	87,829,395	$	57,515,295

Consolidated Obligation Discount Notes. Consolidated obligation discount notes are issued to raise short-term funds. Discount notes are consolidated obligations with original maturities up to one year. These notes are issued at less than their face amount and redeemed at par value when they mature. The following table details the Bank’s consolidated obligation discount notes as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023			December 31, 2022
Book value	$	12,520,373		$	33,745,478
Par value	12,625,033			34,007,058
Weighted average interest rate (1)	5.31		%	4.25		%

Note:

(1) Represents yield to maturity excluding concession fees and hedging adjustments.

63

Notes to Unaudited Financial Statements (continued)

Note 7 – Capital

    The Bank is subject to three capital requirements under its current Capital Plan Structure and the Finance Agency rules and regulations: (1) risk-based capital; (2) total regulatory capital; and (3) leverage capital. Regulatory capital does not include AOCI, but does include mandatorily redeemable capital stock. See details regarding these requirements and the Bank’s Capital Plan in Note 11 to the audited financial statements in the Bank’s 2022 Form 10-K. At September 30, 2023, the Bank was in compliance with all regulatory capital requirements.

The Bank has two subclasses of capital stock: B1 membership stock and B2 activity stock. The Bank had $315.3 million in B1 membership stock and $3,525.3 million in B2 activity stock at September 30, 2023. The Bank had $309.0 million in B1 membership stock and $3,119.4 million in B2 activity stock at December 31, 2022.

The following table demonstrates the Bank’s compliance with the regulatory capital requirements at September 30, 2023 and December 31, 2022.

	September 30, 2023						December 31, 2022
(dollars in thousands)	Required			Actual			Required			Actual
Regulatory capital requirements:
RBC	$	747,464		$	5,649,663		$	441,078		$	4,992,405
Total capital-to-asset ratio	4.0		%	5.3		%	4.0		%	5.2		%
Total regulatory capital	4,277,496			5,649,663			3,845,647			4,992,405
Leverage ratio	5.0		%	7.9		%	5.0		%	7.8		%
Leverage capital	5,346,870			8,474,495			4,807,058			7,488,607

The Finance Agency has established four capital classifications for the FHLBanks: adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. On September 18, 2023, the Bank received final notification from the Finance Agency that it was considered "adequately capitalized" for the quarter ended June 30, 2023. As of the date of this filing, the Bank has not received final notice from the Finance Agency regarding its capital classification for the quarter ended September 30, 2023.

Mandatorily Redeemable Capital Stock. The Bank is a cooperative whose member financial institutions and former members own all of the relevant Bank issued and outstanding capital stock. Shares cannot be purchased or sold except between the Bank and its members at the shares' par value of $100, as mandated by the Bank's Capital Plan.

At September 30, 2023 and December 31, 2022, the Bank had $28.0 million and $27.8 million, respectively, in capital stock subject to mandatory redemption with payment subject to a five-year waiting period and the Bank meeting its minimum regulatory capital requirements. The dividends on mandatorily redeemable capital stock recorded as interest expense were $0.6 million and $1.7 million during the three and nine months ended September 30, 2023, respectively, and $0.4 million and $1.1 million during the three and nine months ended September 30, 2022, respectively.

The following table provides the related dollar amounts for activities recorded in mandatorily redeemable capital stock during the nine months ended September 30, 2023 and 2022.

	Nine months ended September 30,
(in thousands)	2023		2022
Balance, beginning of the period	$	27,763	$	22,457
Capital stock subject to mandatory redemption reclassified from capital	13,681		5,810
Redemption/repurchase of mandatorily redeemable capital stock	(13,448)		(227)
Balance, end of the period	$	27,996	$	28,040

    As of September 30, 2023, the total mandatorily redeemable capital stock reflected the balance for eight institutions. Four institutions were merged out of district and are considered to be non-members. The stock includes activity stock for one former member who relocated its principal place of business outside the Bank's district and became a member of another FHLBank at which time the membership with the Bank terminated. Three other institutions have notified the Bank of their intention to voluntarily redeem their capital stock and withdraw from membership. These institutions will continue to be members of the Bank until the withdrawal period is completed.

64

Notes to Unaudited Financial Statements (continued)

The following table shows the amount of mandatorily redeemable capital stock by contractual year of redemption at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Due in 1 year or less	$	—	$	20,000
Due after 1 year through 2 years	40		—
Due after 2 years through 3 years	486		34
Due after 3 years through 4 years	4,787		527
Due after 4 years through 5 years	1,206		5,571
Past contractual redemption date due to activity outstanding	21,477		1,631
Total	$	27,996	$	27,763

Under the terms of the Bank’s Capital Plan, membership capital stock is redeemable five years from the date of membership termination or withdrawal notice from the member. If the membership is terminated due to a merger or consolidation, the membership capital stock is deemed to be excess stock and is repurchased. The activity capital stock (i.e., supporting advances, letters of credit and MPF) relating to termination, withdrawal, mergers or consolidation is recalculated based on the underlying activity. Any excess activity capital stock is repurchased on an ongoing basis as part of the Bank’s excess stock repurchase program that is in effect at the time. Therefore, the redemption period could be less than five years if the stock becomes excess stock. However, the redemption period could extend beyond five years if the underlying activity is still outstanding.

Dividends and Retained Earnings. In accordance with the Joint Capital Enhancement Agreement (JCEA), entered into by the Bank, as amended, the Bank allocates on a quarterly basis 20% of its net income to a separate restricted retained earnings account (RRE) until the account balance equals at least 1% of the Bank's average balance of outstanding consolidated obligations for the current quarter. These RRE are not available to pay dividends and are presented separately from other retained earnings on the Statement of Condition. Additionally, the JCEA provides that amounts in restricted retained earnings in excess of 150% of the Bank’s restricted retained earnings minimum (i.e., one percent of the average balance of outstanding consolidated obligations calculated as of the last day of each calendar quarter) may be released from restricted retained earnings. At September 30, 2023, retained earnings were $1,781.0 million, including $1,191.0 million of unrestricted retained earnings and $590.1 million of RRE.

Dividends paid by the Bank are subject to Board approval and may be paid in either capital stock or cash; historically, the Bank has paid cash dividends only. These dividends are based on stockholders' average balances for the previous quarter. Dividends paid through the third quarter of 2023 and 2022 are presented in the table below.

	Dividend - Annual Yield
	2023				2022
	Membership		Activity		Membership		Activity
February	4.00	%	7.95	%	1.25	%	5.25	%
April	5.00	%	7.95	%	1.25	%	5.25	%
July	5.25	%	7.95	%	2.25	%	6.25	%

    In October 2023, the Bank paid a quarterly dividend equal to an annual yield of 5.35% on membership stock and 8.25% on activity stock.

65

Notes to Unaudited Financial Statements (continued)

The following table summarizes the changes in AOCI for the three and nine months ended September 30, 2023 and 2022.

(in thousands)	Net Unrealized Gains(Losses) on AFS		Pension and Post-Retirement Plans		Total
June 30, 2022	$	9,380	$	(4,446)	$	4,934
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(71,853)		—		(71,853)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(188)		—		(188)
Pension and post-retirement	—		189		189
September 30, 2022	$	(62,661)	$	(4,257)	$	(66,918)
June 30, 2023	$	(49,722)	$	(627)	$	(50,349)
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(65,343)		—		(65,343)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	—		—		—
Pension and post-retirement	—		(8)		(8)
September 30, 2023	$	(115,065)	$	(635)	$	(115,700)
December 31, 2021	$	115,015	$	(4,824)	$	110,191
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(177,261)		—		(177,261)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(415)		—		(415)
Pension and post-retirement	—		567		567
September 30, 2022	$	(62,661)	$	(4,257)	$	(66,918)
December 31, 2022	$	(65,917)	$	(610)	$	(66,527)
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(48,659)		—		(48,659)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(489)		—		(489)
Pension and post-retirement	—		(25)		(25)
September 30, 2023	$	(115,065)	$	(635)	$	(115,700)

66

Notes to Unaudited Financial Statements (continued)

Note 8 – Transactions with Related Parties

The following table includes significant outstanding related party member-activity balances.

(in thousands)	September 30, 2023		December 31, 2022
Advances(1)	$	43,382,124	$	42,401,975
Letters of credit (2)	21,611,992		16,928,206
MPF loans	209,693		263,795
Deposits	40,655		32,335
Capital stock	1,971,571		1,891,978

Note:

(1) Par balances

(2) Letters of credit are off-balance sheet commitments.

The following table summarizes the effects on the Statements of Income corresponding to the related party member balances above. Amounts related to interest expense on deposits were immaterial for the periods presented.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Interest income on advances (1)	$	601,408	$	181,760	$	1,824,881	$	283,054
Interest income on MPF loans	2,628		3,318		8,216		7,431
Letters of credit fees	8,067		90		19,127		4,694

Note:

(1) Interest income on advances includes contractual interest income and prepayment fees. The effect of derivative activities is not included.

The following table summarizes the effect of the MPF activities with FHLBank of Chicago.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Servicing fee expense	$	952	$	890	$	2,833	$	2,674

(in thousands)	September 30, 2023		December 31, 2022
Interest-bearing deposits maintained with FHLBank of Chicago	$	5,483	$	5,119

From time to time, the Bank may borrow from or lend to other FHLBanks on a short-term uncollateralized basis. The amount loaned by the Bank to other FHLBanks and repaid was $0 and $750 million during the three and nine months ended September 30, 2023 and $1.0 billion and $1.8 billion during the three and nine months ended September 30, 2022. There was no amount borrowed from and repaid to other FHLBanks during the three and nine months ended September 30, 2023 and $2.0 billion during the three and nine months ended September 30, 2022.

Subject to mutually agreed upon terms, on occasion, an FHLBank may transfer at fair value its primary debt obligations to another FHLBank. During the three and nine months ended September 30, 2023 and 2022, there were no transfers of debt between the Bank and another FHLBank.

From time to time, a member of one FHLBank may be acquired by a member of another FHLBank. When such an acquisition occurs, the two FHLBanks may agree to transfer at fair value the loans of the acquired member to the FHLBank of the surviving member. The FHLBanks may also agree to the purchase and sale of any related hedging instrument. The Bank had no such activity during the three and nine months ended September 30, 2023 and 2022.

    In the ordinary course of business, the Bank may utilize products and services, provided at normal market rates and terms, from its members to support its operations. Additional discussions regarding related party transactions can be found in Note 13 to the audited financial statements in the Bank's 2022 Form 10-K.

67

Notes to Unaudited Financial Statements (continued)

Note 9 – Estimated Fair Values

Fair value amounts have been determined by the Bank using available market information and appropriate valuation methods. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). These estimates are based on recent market data and other pertinent information available to the Bank at September 30, 2023 and December 31, 2022. Although the management of the Bank believes that the valuation methods are appropriate and provide a reasonable determination of the fair value of these financial instruments, there are inherent limitations in any valuation technique. Therefore, these fair values are not necessarily equal to the amounts that would be realized in current market transactions, although they do reflect the Bank’s judgment of how a market participant would estimate the fair values.

The carrying value and estimated fair value of the Bank’s financial instruments at September 30, 2023 and December 31, 2022 are presented in the table below.

Fair Value Summary Table
	September 30, 2023
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	20,328	$	20,328	$	—	$	—	$	—	$	20,328
Interest-bearing deposits	3,040,744		3,040,744		—		—		—		3,040,744
Securities purchased under agreement to resell (2)	3,380,000		—		3,379,996		—		—		3,379,996
Federal funds sold	3,536,000		—		3,536,000		—		—		3,536,000
Trading securities	212,634		—		212,634		—		—		212,634
AFS securities	13,649,563		—		13,522,705		126,857		—		13,649,562
HTM securities	1,247,367		—		1,094,520		43,609		—		1,138,129
Advances	76,202,160		—		76,073,438		—		—		76,073,438
Mortgage loans held for portfolio, net	4,663,907		—		3,941,940		—		—		3,941,940
BOB loans, net	25,354		—		—		25,354		—		25,354
Accrued interest receivable	498,984		—		498,984		—		—		498,984
Derivative assets	425,630		—		317,887		—		107,743		425,630
Liabilities:
Deposits	$	855,987	$	—	$	855,987	$	—	$	—	$	855,987
Discount notes	12,520,373		—		12,515,800		—		—		12,515,800
Bonds	86,842,548		—		86,048,254		—		—		86,048,254
Mandatorily redeemable capital stock(3)	27,996		28,597		—		—		—		28,597
Accrued interest payable(3)	807,851		—		807,250		—		—		807,250
Derivative liabilities	10,424		—		966,342		—		(955,918)		10,424

68

Notes to Unaudited Financial Statements (continued)

	December 31, 2022
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	13,242	$	13,242	$	—	$	—	$	—	$	13,242
Interest-bearing deposits	2,471,135		2,471,135		—		—		—		2,471,135
Securities purchased under agreement to resell(2)	3,200,000		—		3,200,137		—		—		3,200,137
Federal funds sold	3,050,000		—		3,050,141		—		—		3,050,141
Trading securities	214,008		—		214,008		—		—		214,008
AFS securities	12,190,560		—		12,048,289		142,271		—		12,190,560
HTM securities	956,471		—		824,230		50,052		—		874,282
Advances	68,856,236		—		68,548,367		—		—		68,548,367
Mortgage loans held for portfolio, net	4,590,888		—		4,039,588		—		—		4,039,588
BOB loans, net	22,998		—		—		22,998		—		22,998
Accrued interest receivable	310,081		—		310,081		—		—		310,081
Derivative assets	228,996		—		60,626		—		168,370		228,996
Liabilities:
Deposits	$	553,279	$	—	$	553,279	$	—	$	—	$	553,279
Discount notes	33,745,478		—		33,739,166		—		—		33,739,166
Bonds	56,471,455		—		55,694,094		—		—		55,694,094
Mandatorily redeemable capital stock(3)	27,763		28,321		—		—		—		28,321
Accrued interest payable(3)	287,539		—		286,981		—		—		286,981
Derivative liabilities	13,438		—		1,009,632		—		(996,194)		13,438

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

(2) Based on the fair value of the related collateral held, the securities purchased under agreements to resell were fully collateralized for the periods presented. There were no offsetting liabilities related to these securities at September 30, 2023 and December 31, 2022. These instruments’ maturity term is overnight.

(3) The estimated fair value amount for the mandatorily redeemable capital stock line item includes accrued dividend interest; this amount is excluded from the estimated fair value for the accrued interest payable line item.

Fair Value Hierarchy. The fair value hierarchy is used to prioritize the inputs used to measure fair value by maximizing the use of observable inputs. The inputs are evaluated and an overall level for the fair value measurement is determined. This overall level is an indication of the market observability of the fair value measurement for the asset or liability.

    The fair value hierarchy prioritizes the inputs used to measure fair value into three broad levels:

    Level 1 Inputs - Quoted prices (unadjusted) for identical assets or liabilities in an active market that the reporting entity can access on the measurement date. An active market for the asset or liability is a market in which the transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

    Level 2 Inputs - Inputs other than quoted prices within Level 1 that are observable inputs for the asset or liability, either directly or indirectly. If the asset or liability has a specified (contractual) term, a Level 2 input must be observable for substantially the full term of the asset or liability. Level 2 inputs include the following: (1) quoted prices for similar assets or liabilities in active markets; (2) quoted prices for identical or similar assets or liabilities in markets that are not active or in which little information is released publicly; (3) inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates and yield curves that are observable at commonly quoted intervals, and implied volatilities) and (4) inputs that are derived principally from or corroborated by observable market data by correlation or other means.

    Level 3 Inputs - Valuations derived from techniques in which one or more significant inputs are not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

69

Notes to Unaudited Financial Statements (continued)

The Bank reviews its fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation inputs may result in a reclassification of certain assets or liabilities.

Summary of Valuation Methodologies and Primary Inputs

    The valuation methodologies and primary inputs used to develop the measurement of fair value for assets and liabilities that are measured at fair value on a recurring or nonrecurring basis in the Statement of Condition are listed below.

    Investment Securities – non-MBS. The Bank uses either the income or market approach to determine the estimated fair value of non-MBS investment securities.

    For instruments that use the income approach, the significant inputs include a market-observable interest rate curve and a discount spread, if applicable. The market-observable interest rate curves and the related instrument types are as follows:

▪CO curve: GSE and other U.S. obligations

    The Bank uses a market approach for its state and local agency bonds and U.S. Treasury obligations. For state and local agency bonds, the Bank obtains prices from multiple designated third-party vendors when available, and the default price is the average of the prices obtained. Otherwise, the approach is generally consistent with the approach outlined below for Investment Securities - MBS. For U.S. Treasury obligations, prices are obtained from a third-party vendor based on daily trade activity or dealer quotes. For certain short-term U.S. Treasury obligations, market prices are not available, and the Bank uses an income approach.

Investment Securities – MBS. To value MBS holdings, the Bank obtains prices from multiple third-party pricing vendors, when available. The pricing vendors use various proprietary models to price MBS. The inputs to those models are derived from various sources including, but not limited to: benchmark yields, reported trades, dealer estimates, issuer spreads, benchmark securities, bids, offers and other market-related data. Since many MBS do not trade on a daily basis, the pricing vendors use available information such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to determine the prices for individual securities, as applicable. Each pricing vendor has an established challenge process in place for all MBS valuations, which facilitates resolution of potentially erroneous prices identified by the Bank.

During the year, the Bank conducts reviews of its pricing vendors to enhance its understanding of the vendors' pricing processes, methodologies and control procedures. To the extent available, the Bank also reviews the vendors' independent auditors' reports regarding the internal controls over their valuation processes.

The Bank's valuation technique first requires the establishment of a median price for each security. All prices that are within a specified tolerance threshold of the median price are included in the cluster of prices that are averaged to compute a default price. Prices that are outside the threshold (outliers) are subject to further analysis (including, but not limited to, comparison to prices provided by an additional third-party valuation service, prices for similar securities, and/or non-binding dealer estimates) to determine if an outlier is a better estimate of fair value. If an outlier (or some other price identified in the analysis) is determined to be a better estimate of fair value, then the outlier (or the other price as appropriate) is used as the price rather than the default price. If, on the other hand, the analysis confirms that an outlier (or outliers) is (are) in fact not representative of fair value and the default price is the best estimate, then the default price is used as the final price. In all cases, the final price is used to determine the fair value of the security. If all prices received for a security are outside the tolerance threshold level of the median price, then there is no default price, and the final price is determined by an evaluation of all outlier prices as described above.

As of September 30, 2023, for substantially all of its MBS, the Bank received a price from all of its vendors and the default price was the final price. Based on the Bank's reviews of the pricing methods including inputs and controls employed by the third-party pricing vendors and the relative lack of dispersion among the vendor prices (or, in those instances in which there were outliers or significant yield variances, the Bank's additional analyses), the Bank believes the final prices are representative of the prices that would have been received if the assets had been sold at the measurement date (i.e., exit prices) and further that the fair value measurements are classified appropriately in the fair value hierarchy. There continues to be unobservable inputs and a lack of significant market activity for private label MBS; therefore, the Bank classified private label MBS as Level 3.

Derivative Assets/Liabilities. The Bank bases the fair values of derivatives with similar terms on market prices, when available. However, market prices do not exist for many types of derivative instruments. Consequently, fair values for these instruments are estimated using standard valuation techniques such as discounted cash flow analysis and comparisons to similar instruments. Estimates developed using these methods are highly subjective and require judgment regarding significant matters

70

Notes to Unaudited Financial Statements (continued)

such as the amount and timing of future cash flows, volatility of interest rates and the selection of discount rates that appropriately reflect market and credit risks. In addition, the fair value estimates for these instruments include accrued interest receivable/payable which approximate their carrying values due to their short-term nature.

    The discounted cash flow analysis used to determine the net present value of derivative instruments utilizes market-observable inputs (inputs that are actively quoted and can be validated to external sources). Inputs by class of derivative are as follows:

    Interest-rate related:

▪Discount rate assumption. SOFR curve for cleared derivatives and SOFR uncleared derivatives. Overnight Index Swap (OIS) curve for all other uncleared derivatives.

▪Forward interest rate assumption (rates projected in order to calculate cash flows through the designated term of the hedge relationship). OIS curve or SOFR curve.

▪Volatility assumption. Market-based expectations of future interest rate volatility implied from current market prices for similar options.

    Mortgage delivery commitments:

▪TBA securities prices. Market-based prices of TBAs are determined by coupon class and expected term until settlement and a pricing adjustment reflective of the secondary mortgage market.

The Bank is subject to credit risk on uncleared derivatives transactions due to the potential nonperformance by the derivatives counterparties. To mitigate this risk, the Bank has entered into netting arrangements and security agreements that provide for delivery of collateral at specified levels. As a result, uncleared derivatives are recognized as collateralized-to-market and the fair value of uncleared derivatives excludes netting adjustments and collateral. The Bank has evaluated the potential for fair value adjustment due to uncleared counterparty credit risk and has concluded that no adjustments are necessary.

The Bank's credit risk exposure on cleared derivatives is mitigated through the delivery of initial margin to offset future changes in value and daily delivery of variation margin to offset changes in market value. This is executed through the use of a central counterparty, either CME clearing or LCH Ltd. Variation margin payments are daily settlement payments rather than collateral. Initial margin continues to be treated as collateral and accounted for separately.

The fair values of derivatives are netted by clearing agent and/or by counterparty pursuant to the provisions of each of the Bank’s netting agreements. If these netted amounts are positive, they are classified as an asset and, if negative, as a liability.

    Impaired Mortgage Loans Held for Portfolio and REO. The estimated fair values of impaired mortgage loans held for portfolio and real estate owned are determined based on values provided by a third party's retail-based AVM. The Bank adjusts the AVM value based on the amount it has historically received on liquidation.

    Subjectivity of Estimates. Estimates of the fair value of financial assets and liabilities using the methods described above are highly subjective and require judgments regarding significant matters such as the amount and timing of future cash flows, prepayment speed assumptions, expected interest rate volatility, possible distributions of future interest rates used to value options, and the selection of discount rates that appropriately reflect market and credit risks. The use of different assumptions could have a material effect on the fair value estimates. These estimates are susceptible to material near term changes because they are made as of a specific point in time.

71

Notes to Unaudited Financial Statements (continued)

Fair Value Measurements. The following tables present, for each hierarchy level, the Bank’s assets and liabilities that are measured at fair value on a recurring or non-recurring basis on its Statement of Condition at September 30, 2023 and December 31, 2022. The Bank measures certain mortgage loans held for portfolio at fair value when a charge-off is recognized and subsequently when the fair value of collateral less costs to sell is lower than the carrying amount. Real estate owned is measured using fair value when the assets' fair value less costs to sell is lower than the carrying amount.

	September 30, 2023
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	212,634	$	—	$	—	$	212,634
Total trading securities	$	—	$	212,634	$	—	$	—	$	212,634
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	3,525,693	$	—	$	—	$	3,525,693
GSE and TVA obligations	—		987,383		—		—		987,383
State or local agency obligations	—		160,045		—		—		160,045
MBS:
U.S. obligations single-family	—		1,341,918		—		—		1,341,918
GSE single-family	—		1,945,971		—		—		1,945,971
GSE multifamily	—		5,561,696		—		—		5,561,696
Private label	—		—		126,857		—		126,857
Total AFS securities	$	—	$	13,522,706	$	126,857	$	—	$	13,649,563
Derivative assets:
Interest rate related	$	—	$	317,880	$	—	$	107,743	$	425,623
Mortgage delivery commitments	—		7		—		—		7
Total derivative assets	$	—	$	317,887	$	—	$	107,743	$	425,630
Total recurring assets at fair value	$	—	$	14,053,227	$	126,857	$	107,743	$	14,287,827
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	966,222	$	—	$	(955,918)	$	10,304
Mortgage delivery commitments	—		120		—		—		120
Total recurring liabilities at fair value	$	—	$	966,342	$	—	$	(955,918)	$	10,424
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,743	$	—	$	5,743
REO	—		—		290		—		290
Total non-recurring assets at fair value	$	—	$	—	$	6,033	$	—	$	6,033

72

Notes to Unaudited Financial Statements (continued)

	December 31, 2022
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	214,008	$	—	$	—	$	214,008
Total trading securities	$	—	$	214,008	$	—	$	—	$	214,008
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	5,232,493	$	—	$	—	$	5,232,493
GSE and TVA obligations	—		1,125,743		—		—		1,125,743
State or local agency obligations	—		170,263		—		—		170,263
MBS:
U.S. obligations single-family	—		482,982		—		—		482,982
GSE single-family	—		1,881,037		—		—		1,881,037
GSE multifamily	—		3,155,771		—		—		3,155,771
Private label	—		—		142,271		—		142,271
Total AFS securities	$	—	$	12,048,289	$	142,271	$	—	$	12,190,560
Derivative assets:
Interest rate related	$	—	$	60,616	$	—	$	168,370	$	228,986
Mortgage delivery commitments	—		10		—		—		10
Total derivative assets	$	—	$	60,626	$	—	$	168,370	$	228,996
Total recurring assets at fair value	$	—	$	12,322,923	$	142,271	$	168,370	$	12,633,564
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	1,009,591	$	—	$	(996,194)	$	13,397
Mortgage delivery commitments	—		41		—		—		41
Total recurring liabilities at fair value	$	—	$	1,009,632	$	—	$	(996,194)	$	13,438
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,240	$	—	$	5,240
REO	—		—		403		—		403
Total non-recurring assets at fair value	$	—	$	—	$	5,643	$	—	$	5,643

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the Bank with the same clearing agent and/or counterparties.

73

Notes to Unaudited Financial Statements (continued)

Level 3 Disclosures for all Assets and Liabilities That Are Measured at Fair Value on a Recurring Basis. The following table presents a reconciliation of all assets and liabilities that are measured at fair value on the Statement of Condition using significant unobservable inputs (Level 3) for the nine months ended September 30, 2023 and 2022. For instruments carried at fair value, the Bank reviews the fair value hierarchy classifications each quarter. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out at fair value in the quarter in which the changes occur. There were no Level 3 transfers during the first nine months of 2023 or 2022.

	AFS Private Label MBS
	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	134,685	$	162,201	$	142,271	$	194,425
Total gains (losses) (realized/unrealized) included in:
(Provision) reversal for credit losses	(1,566)		(2,487)		(3,040)		(5,142)
Accretion of credit losses in interest income	1,660		2,534		4,939		6,955
Net unrealized gains (losses) on AFS in OCI	(4,659)		(5,861)		(8,461)		(17,015)
Settlements:
Settlements	(3,263)		(6,935)		(8,852)		(29,771)
Balance, end of period	$	126,857	$	149,452	$	126,857	$	149,452
Total amount of gains for the periods presented included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at September 30, 2023	$	94	$	(224)	$	1,899	$	1,494
Change in unrealized gains (losses) for the period included in other comprehensive income (loss) for assets held at September 30, 2023	$	(4,659)	$	(5,861)	$	(8,461)	$	(17,015)

74

Notes to Unaudited Financial Statements (continued)

Note 10 – Commitments and Contingencies

The following table presents the Bank's various off-balance sheet commitments which are described in detail below.

(in thousands)	September 30, 2023						December 31, 2022
Notional amount	Expiration Date Within One Year		Expiration Date After One Year		Total		Total
Standby letters of credit outstanding (1) (2)	$	29,816,480	$	—	$	29,816,480	$	22,126,676
Commitments to fund additional advances and BOB loans	1,436		—		1,436		373
Commitments to purchase mortgage loans	24,854		—		24,854		10,287
Unsettled consolidated obligation discount notes, at par	576,000		—		576,000		15,370
Unsettled consolidated obligation bonds, at par	27,000		—		27,000		1,080,000

Notes:

(1) Excludes approved requests to issue future standby letters of credit of $0.9 million at September 30, 2023 and $0.0 million at December 31, 2022.

(2) Letters of credit in the amount of $7.3 billion at September 30, 2023 and $2.2 billion at December 31, 2022, have renewal language that permits the letter of credit to be renewed for an additional period with a maximum renewal period of approximately five years.

Commitments to Extend Credit on Standby Letters of Credit, Additional Advances and BOB Loans. Standby letters of credit are issued on behalf of members for a fee. A standby letter of credit is a financing arrangement between the Bank and its member. If the Bank is required to make payment for a beneficiary’s draw, these amounts are withdrawn from the member’s Demand Deposit Account (DDA). Any remaining amounts not covered by the withdrawal from the member’s DDA are converted into a collateralized overnight advance.

    Unearned fees related to standby letters of credit are recorded in other liabilities and had a balance of $5.6 million at September 30, 2023 and $4.2 million at December 31, 2022. The Bank manages the credit risk of each member on the basis of the member's TCE to the Bank which includes its standby letters of credit. The Bank has established parameters for the review, assessment, monitoring and measurement of credit risk related to these standby letters of credit as described in Note 3 - Advances.

Based on management’s credit analyses, collateral requirements, and adherence to the requirements set forth in Bank policy and Finance Agency regulations, the Bank has not recorded any additional liability on advance commitments and standby letters of credit which are collateralized at the time of issuance. The Bank records a liability with respect to BOB commitments, which is reflected in Other liabilities on the Statement of Condition.

The Bank does not have any legally binding or unconditional unused lines of credit for advances at September 30, 2023 or December 31, 2022. However, within the Bank's Rollover (weekly/monthly) advance product, there were conditional lines of credit outstanding of $10.4 billion at September 30, 2023 and $9.6 billion at December 31, 2022.

Commitments to Purchase Mortgage Loans. The Bank may enter into commitments that unconditionally obligate the Bank to purchase mortgage loans under the MPF Program. These delivery commitments are generally for periods not to exceed 60 days. Such commitments are recorded as derivatives.

Pledged Collateral. The Bank may pledge cash and securities, as collateral, related to derivatives. Refer to Note 5 - Derivatives and Hedging Activities in this Form 10-Q for additional information about the Bank's pledged collateral and other credit-risk-related contingent features.

Legal Proceedings. The Bank is subject to legal proceedings arising in the normal course of business. The Bank 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. After consultation with legal counsel, management does not anticipate that the ultimate liability, if any, arising out of these matters will have a material effect on the Bank's financial condition, results of operations or cash flows.

Notes 3, 5, 6, 7, and 8 also discuss other commitments and contingencies.

75

Item 3: Quantitative and Qualitative Disclosures about Market Risk

See the Risk Management section in Part I, Item 2. Management’s Discussion and Analysis in this Form 10-Q.

Item 4: Controls and Procedures

Disclosure Controls and Procedures

Under the supervision and with the participation of the Bank’s management, including the chief executive officer and chief financial officer (principal financial officer), the Bank conducted an evaluation of its disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the 1934 Act). Based on this evaluation, the Bank’s chief executive officer and chief financial officer (principal financial officer) concluded that the Bank’s disclosure controls and procedures were effective as of September 30, 2023.

Management's Report on Internal Control Over Financial Reporting

There have been no changes in internal control over financial reporting that occurred during the third quarter of 2023 that have materially affected, or are reasonably likely to materially affect, the Bank’s internal control over financial reporting.

PART II – OTHER INFORMATION

Item 1: Legal Proceedings

    The Bank may be subject to various legal proceedings arising in the normal course of business. After consultation with legal counsel, management is not aware of any such proceedings that might result in the Bank’s ultimate liability in an amount that will have a material effect on the Bank’s financial condition or results of operations.

Item 1A: Risk Factors

    There are no material changes in the Bank's Risk Factors from those previously disclosed in Part I, Item 1A. Risk Factors in the Bank’s 2022 Form 10-K.

Item 2: Unregistered Sales of Equity Securities and Use of Proceeds

Not applicable.

Item 3: Defaults upon Senior Securities

None.

Item 4: Mine Safety Disclosures

Not applicable.

Item 5: Other Information

    None.

76

Item 6: Exhibits

Exhibit No.	Description	Method of Filing
31.1	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for the Chief Executive Officer	Filed herewith.
31.2	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for the Principal Financial Officer	Filed herewith.
32.1	Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 for the Chief Executive Officer	Furnished herewith.
32.2	Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 for the Principal Financial Officer	Furnished herewith.
101.INS	Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.	Filed herewith.
101.SCH	Inline XBRL Taxonomy Extension Schema Document	Filed herewith.
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document	Filed herewith.
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document	Filed herewith.
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document	Filed herewith.
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document	Filed herewith.
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)	Filed herewith.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Federal Home Loan Bank of Pittsburgh

(Registrant)

By: /s/ Edward V. Weller

Edward V. Weller

Chief Financial Officer

(Principal Financial Officer and Authorized Officer)

By: /s/ David G. Paulson

David G. Paulson

Chief Operating Officer

(Authorized Officer)

Date: November 7, 2023

77

EX-31.1

Exhibit 31.1

In accordance with Exchange Act Rules 13a-14(f) and 15d-14(f), this certification does not relate to Interactive Data Files as defined in Rule 11 of Regulation S-T.

Certification Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

for the Chief Executive Officer

I, Winthrop Watson, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the Federal Home Loan Bank of Pittsburgh (the registrant);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant is made known to us, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:     November 7, 2023                     /s/ Winthrop Watson

                                Name:    Winthrop Watson

                                Title:    President & Chief Executive Officer

EX-31.2

Exhibit 31.2

In accordance with Exchange Act Rules 13a-14(f) and 15d-14(f), this certification does not relate to Interactive Data Files as defined in Rule 11 of Regulation S-T.

Certification Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

for the Principal Financial Officer

I, Edward V. Weller, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the Federal Home Loan Bank of Pittsburgh (the registrant);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant is made known to us, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:     November 7, 2023                         /s/ Edward V. Weller

                                Name:    Edward V. Weller

                                Title:    Chief Financial Officer

EX-32.1

Exhibit 32.1

In accordance with Exchange Act Rules 13a-14(f) and 15d-14(f), this certification does not relate to Interactive Data Files as defined in Rule 11 of Regulation S-T.

Certification Pursuant to 18 U.S.C. Section 1350,

as Adopted Pursuant to Section 906

of the Sarbanes-Oxley Act of 2002 for the Chief Executive Officer

I, Winthrop Watson, state and attest that:

1. I am the Chief Executive Officer of the Federal Home Loan Bank of Pittsburgh (the registrant).

2. I hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

l this Form 10-Q of the registrant for the quarter ended September 30, 2023 (the periodic report) containing financial statements fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

l the information contained in the periodic report fairly presents, in all material respects, the financial condition and results of operations of the registrant as of, and for, the periods presented.

Date:     November 7, 2023                     /s/ Winthrop Watson

                                Name:    Winthrop Watson

                                Title:    President & Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to the Federal Home Loan Bank of Pittsburgh and will be retained by the Federal Home Loan Bank of Pittsburgh and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

In accordance with Exchange Act Rules 13a-14(f) and 15d-14(f), this certification does not relate to Interactive Data Files as defined in Rule 11 of Regulation S-T.

Certification Pursuant to 18 U.S.C. Section 1350,

as Adopted Pursuant to Section 906

of the Sarbanes-Oxley Act of 2002 for the Chief Financial Officer

I, Edward V. Weller, state and attest that:

1. I am the Chief Financial Officer of the Federal Home Loan Bank of Pittsburgh (the registrant).

2. I hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

l this Form 10-Q of the registrant for the quarter ended September 30, 2023 (the periodic report) containing financial statements fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

l the information contained in the periodic report fairly presents, in all material respects, the financial condition and results of operations of the registrant as of, and for, the periods presented.

Date:     November 7, 2023                        /s/ Edward V. Weller

                                Name:    Edward V. Weller

                                Title:    Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to the Federal Home Loan Bank of Pittsburgh and will be retained by the Federal Home Loan Bank of Pittsburgh and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2023	Oct. 27, 2023
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	000-51395
Entity Registrant Name	FEDERAL HOME LOAN BANK OF PITTSBURGH
Entity Tax Identification Number	25-6001324
Entity Address, Address Line One	601 Grant Street
Entity Address, City or Town	Pittsburgh,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15219
City Area Code	412
Local Phone Number	288-3400
Entity Central Index Key	0001330399
Current Fiscal Year End Date	--12-31
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		39,461,885
Entity Home Country ISO Code	X1

XML

Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest income:
Advances	$ 1,071,029	$ 271,015	$ 3,120,857	$ 382,012
Interest-bearing deposits	54,845	11,640	150,582	15,015
Securities purchased under agreements to resell	89,233	15,585	217,988	20,299
Federal funds sold	44,629	27,166	148,900	36,435
Trading securities	1,845	1,858	5,533	5,570
Available-for-sale (AFS) securities	190,518	79,004	516,045	144,726
Held-to-maturity (HTM) securities	10,744	7,192	26,878	20,654
Mortgage loans held for portfolio	37,516	34,145	108,824	99,890
Total interest income	1,500,359	447,605	4,295,607	724,601
Interest expense:
Consolidated obligations - discount notes	220,233	142,549	943,590	181,711
Consolidated obligations - bonds	1,079,869	194,399	2,778,910	318,851
Deposits	10,344	3,923	24,533	5,593
Mandatorily redeemable capital stock and other borrowings	601	867	1,831	1,495
Total interest expense	1,311,047	341,738	3,748,864	507,650
Net interest income	189,312	105,867	546,743	216,951
Provision for credit losses	1,863	3,226	4,080	5,429
Net interest income after provision for credit losses	187,449	102,641	542,663	211,522
Other noninterest income (loss):
Net gains (losses) on investment securities (Note 2)	(2,437)	(8,342)	(1,077)	(28,250)
Net gains (losses) on derivatives (Note 5)	7,270	6,648	21,216	15,409
Standby letters of credit fees	8,133	6,443	22,173	17,739
Other, net	1,063	104	2,507	502
Total noninterest income (loss)	14,029	4,853	44,819	5,400
Other Expense
Compensation and benefits	14,828	13,029	43,723	38,889
Other operating	9,890	9,243	28,522	25,494
Finance Agency	1,652	1,145	4,960	3,566
Office of Finance	1,570	1,339	4,379	3,754
Total other expense	27,940	24,756	81,584	71,703
Income before assessments	173,538	82,738	505,898	145,219
Affordable Housing Program (AHP) assessment	17,414	8,317	50,764	14,628
Net income	$ 156,124	$ 74,421	$ 455,134	$ 130,591

XML

Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income	$ 156,124	$ 74,421	$ 455,134	$ 130,591
Other comprehensive income (loss):
Net unrealized gains (losses) on AFS securities	(65,343)	(71,853)	(48,659)	(177,261)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	(188)	(489)	(415)
Pension and post-retirement benefits	(8)	189	(25)	567
Total other comprehensive income (loss)	(65,351)	(71,852)	(49,173)	(177,109)
Total comprehensive income (loss)	$ 90,773	$ 2,569	$ 405,961	$ (46,518)

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Statements of Condition - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks		$ 20,328	$ 13,242
Interest-bearing deposits (Note 2)		3,040,744	2,471,135
Securities Purchased under Agreements to Resell ( Note 2)		3,380,000	3,200,000
Federal Funds Sold ( Note 2)		3,536,000	3,050,000
Investment securities: (Note 2)
Trading securities		212,634	214,008
AFS securities, net; amortized cost of $13,776,200 and $12,265,009		13,649,563	12,190,560
HTM securities; fair value of $1,138,129 and $874,282	[1]	1,247,367	956,471
Total investment securities		15,109,564	13,361,039
Advances (Note 3)		76,202,160	68,856,236
Mortgage loans held for portfolio, net (Note 4)		4,663,907	4,590,888
Banking on Business (BOB) loans, net		25,354	22,998
Accrued interest receivable		498,984	310,081
Derivative assets (Note 5)		425,630	228,996
Other assets		34,736	36,552
Total assets		106,937,407	96,141,167
Liabilities
Deposits		855,987	553,279
Consolidated obligations: (Note 6)
Discount notes		12,520,373	33,745,478
Bonds		86,842,548	56,471,455
Total consolidated obligations		99,362,921	90,216,933
Mandatorily redeemable capital stock (Note 7)		27,996	27,763
Accrued interest payable		807,851	287,539
AHP payable		109,974	75,828
Derivative liabilities (Note 5)		10,424	13,438
Other liabilities		256,287	68,272
Total liabilities		101,431,440	91,243,052
Commitments and contingencies (Note 10)
Capital (Note 7)
Capital stock - Class B putable ($100 par value) issued and outstanding shares 38,406 and 34,284, respectively		3,840,618	3,428,405
Retained earnings:
Unrestricted		1,190,967	1,037,182
Restricted		590,082	499,055
Total retained earnings		1,781,049	1,536,237
Accumulated Other Comprehensive Income (Loss) (AOCI)		(115,700)	(66,527)
Total capital		5,505,967	4,898,115
Total liabilities and capital		$ 106,937,407	$ 96,141,167

[1] Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

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Statement of Condition (Parenthetical) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
ASSETS
HTM securities - fair value		$ 1,138,129	$ 874,282
AFS Securities - Amortized Cost	[1]	$ 13,776,200	$ 12,265,009
Stockholders' Equity Attributable to Parent [Abstract]
Capital Stock, Par value Per Share		$ 100	$ 100
Capital Stock, Shares, Issued and Outstanding		38,406,000	34,284,000

[1] Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

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Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
OPERATING ACTIVITIES
Net income	$ 455,134	$ 130,591
Adjustments to reconcile net income to net cash provided by(used in) operating activities:
Depreciation and amortization	(68,142)	57,212
Net change in derivative and hedging activities	(7,117)	861,356
Net realized (gains) loss from sales of AFS securities	(489)	(415)
Net change in fair value adjustments on trading securities	1,566	28,664
Other adjustments	5,355	6,756
Net change in:
Accrued interest receivable	(189,341)	(134,891)
Other assets	(600)	4,331
Accrued interest payable	520,396	124,962
Other liabilities	34,701	(13,419)
Net cash provided by (used in) operating activities	751,463	1,065,147
Net change in:
Interest-bearing deposits (including $(365) and $98 (to) from other FHLBanks)	(490,832)	(1,930,492)
Federal funds sold	(180,000)	(2,230,000)
Federal funds sold	(486,000)	(2,530,000)
Trading Securities :
Purchases	0	(14,944)
AFS securities:
Proceeds (includes $798,200, and $476,816 from sales of AFS securities)	2,591,823	1,629,013
Purchases	(3,996,519)	(1,306,448)
HTM securities:
Proceeds	106,740	302,284
Purchases	(398,645)	(101,553)
Advances:
Repaid	556,170,718	194,282,341
Originated	(563,639,027)	(238,985,991)
Mortgage loans held for portfolio:
Proceeds	276,878	513,028
Purchases	(356,582)	(449,944)
Other investing activities, net	(1,026)	544
Net cash provided by (used in) investing activities	(10,402,472)	(50,822,162)
FINANCING ACTIVITIES
Net change in deposits	325,604	(415,717)
Net proceeds from issuance of consolidated obligations:
Discount notes	473,218,395	237,077,288
Bonds	76,646,396	34,277,767
Payments for maturing and retiring consolidated obligations
Discount notes	(494,401,699)	(216,132,034)
Bonds	(46,332,725)	(7,235,225)
Proceeds from issuance of capital stock	4,314,023	4,043,101
Payments for repurchase/redemption of capital stock	(3,888,129)	(2,214,385)
Payments for repurchase/redemption of mandatorily redeemable capital stock	(13,448)	(227)
Cash dividends paid	(210,322)	(49,001)
Net cash provided by (used in) financing activities	9,658,095	49,351,567
Net increase (decrease) in cash and due from banks	7,086	(405,448)
Cash and due from banks at beginning of the period	13,242	428,190
Cash and due from banks at end of the period	20,328	22,742
Supplemental disclosures:
Interest paid	3,492,487	354,611
AHP payments, net	17,118	25,150
Capital stock reclassified to mandatorily redeemable capital stock	$ 13,681	$ 5,810

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Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Statement of Cash Flows [Abstract]
Interest-bearing deposits (including $(365) and $98 (to) from other FHLBanks)	$ (365)	$ 98
Net Cash Provided by (Used in) Financing Activities	9,658,095	49,351,567
Cash dividends paid	(210,322)	(49,001)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities	296,329	934,556
Proceeds from Sale of Debt Securities, Available-for-Sale	$ 798,200	$ 476,816

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Statements of Changes in Capital - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital, beginning balance	$ 5,640,907	$ 3,497,955	$ 4,898,115	$ 2,735,652
Comprehensive Income	90,773	2,569	405,961	(46,518)
Issuance of capital stock	958,091	1,883,452	4,314,023	4,043,101
Repurchase/redemption of capital stock	(1,096,670)	(890,735)	(3,888,129)	(2,214,385)
Capital stock reclassified to mandatorily redeemable capital stock	(5,885)	(5,810)	(13,681)	(5,810)
Cash dividends	(81,249)	(24,392)	(210,322)	(49,001)
Total capital, ending balance	$ 5,505,967	$ 4,463,039	$ 5,505,967	$ 4,463,039
Capital Stock - Putable
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, shares beginning balance	39,851	20,630	34,284	12,270
Total capital, beginning balance	$ 3,985,082	$ 2,063,049	$ 3,428,405	$ 1,227,050
Issuance of capital stock, shares	9,580	18,834	43,140	40,431
Issuance of capital stock	$ 958,091	$ 1,883,452	$ 4,314,023	$ 4,043,101
Repurchase/redemption of capital stock, shares	(10,966)	(8,906)	(38,881)	(22,143)
Repurchase/redemption of capital stock	$ (1,096,670)	$ (890,735)	$ (3,888,129)	$ (2,214,385)
Net shares reclassified to mandatorily redeemable capital stock, shares	(59)	(58)	(137)	(58)
Capital stock reclassified to mandatorily redeemable capital stock	$ (5,885)	$ (5,810)	$ (13,681)	$ (5,810)
Balance, shares ending balance	38,406	30,500	38,406	30,500
Total capital, ending balance	$ 3,840,618	$ 3,049,956	$ 3,840,618	$ 3,049,956
Retained Earnings, Unrestricted
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital, beginning balance	1,147,317	965,097	1,037,182	941,033
Comprehensive Income	124,899	59,536	364,107	108,209
Cash dividends	(81,249)	(24,392)	(210,322)	(49,001)
Total capital, ending balance	1,190,967	1,000,241	1,190,967	1,000,241
Retained Earnings, Restricted
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital, beginning balance	558,857	464,875	499,055	457,378
Comprehensive Income	31,225	14,885	91,027	22,382
Total capital, ending balance	590,082	479,760	590,082	479,760
Retained Earnings Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital, beginning balance	1,706,174	1,429,972	1,536,237	1,398,411
Comprehensive Income	156,124	74,421	455,134	130,591
Cash dividends	(81,249)	(24,392)	(210,322)	(49,001)
Total capital, ending balance	1,781,049	1,480,001	1,781,049	1,480,001
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital, beginning balance	(50,349)	4,934	(66,527)	110,191
Comprehensive Income	(65,351)	(71,852)	(49,173)	(177,109)
Total capital, ending balance	$ (115,700)	$ (66,918)	$ (115,700)	$ (66,918)

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Background Information

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Background Information

Background Information

The Bank, a federally chartered corporation, is one of 11 district Federal Home Loan Banks (FHLBanks). Each FHLBank operates as a separate entity with its own management, employees and board of directors. The FHLBanks are government-sponsored enterprises (GSEs) that serve the public by increasing the availability of credit for residential mortgages and community development. The Bank provides a readily available, low-cost source of funds to its member institutions. The Bank is a cooperative, which means that current members own nearly all of the outstanding capital stock of the Bank. All holders of the Bank’s capital stock may, to the extent declared by the Board, receive dividends on their capital stock. Regulated financial depositories and insurance companies engaged in residential housing finance that maintain their principal place of business (as defined by Finance Agency regulation) in Delaware, Pennsylvania or West Virginia may apply for membership. Community Development Financial Institutions (CDFIs) which meet membership regulation standards are also eligible to become Bank members. State and local housing associates that meet certain statutory and regulatory criteria may also borrow from the Bank. While eligible to borrow, state and local housing associates are not members of the Bank and, as such, do not hold capital stock.

All members must purchase capital stock in the Bank. The amount of capital stock a member owns is based on membership requirements (membership asset value) and activity requirements (i.e., outstanding advances, letters of credit, and the principal balance of residential mortgage loans sold to the Bank). The Bank considers those members with capital stock outstanding in excess of 10% of total capital stock outstanding to be related parties. See Note 8 - Transactions with Related Parties for additional information.

The Federal Housing Finance Agency (Finance Agency), an independent agency in the executive branch of the U.S. government, supervises and regulates the FHLBanks, Federal Home Loan Mortgage Corporation (Freddie Mac), and Federal National Mortgage Association (Fannie Mae). The Finance Agency’s stated mission is to ensure the housing GSEs fulfill their mission by operating in a safe and sound manner to serve as a reliable source for liquidity and funding for the housing finance market throughout the economic cycle.

As provided by the Federal Home Loan Bank Act (FHLBank Act) and applicable regulations, consolidated obligations are joint and several obligations of all the FHLBanks and are the primary source of funds for the FHLBanks. These funds are primarily used to provide advances, purchase mortgages from members through the MPF® Program and purchase certain investments. See Note 6 - Consolidated Obligations for additional information. The Office of Finance (OF) is a joint office of the FHLBanks established to facilitate the issuance and servicing of the consolidated obligations of the FHLBanks and to prepare the combined quarterly and annual financial reports of all the FHLBanks. Deposits, other borrowings, and capital stock issued to members provide other funds. The Bank primarily invests these funds in short-term investments to provide liquidity. The Bank also provides member institutions with correspondent services, such as wire transfer, safekeeping and settlement with the Federal Reserve.

The accounting and financial reporting policies of the Bank conform to U.S. Generally Accepted Accounting Principles (GAAP). Preparation of the unaudited financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, as well as the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses. Actual results could differ from those estimates. In the opinion of management, all normal recurring adjustments have been included for a fair statement of this interim financial information. These unaudited financial statements should be read in conjunction with the audited financial statements for the year ended December 31, 2022 included in the Bank's 2022 Form 10-K.

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Accounting Adjustments, Changes in Accounting Principle and Recently Issued Accounting Standards and Interpretations

9 Months Ended

Sep. 30, 2023

Accounting Standards Update and Change in Accounting Principle [Abstract]

Accounting Adjustments, Changes in Accounting Principle and Recently Issued Accounting Standards and Interpretations

Changes in Accounting Principle and Recently Issued Accounting Standards and Interpretations

    The Bank adopted the following new accounting standards during the nine months ended September 30, 2023.

Standard	Description	Effective Date	Effect on the Financial Statements or Other Significant Matters
ASU 2020-04: Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting, as amended	This ASU provides temporary optional guidance to ease the potential burden in accounting for reference rate reform with optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met.	This guidance became effective for the Bank beginning March 12, 2020, through December 31, 2024.	The Bank’s financial instruments impacted by reference rate reform met the criteria for the Bank to elect certain practical expedients and exceptions to GAAP. As a result, contract modifications were deemed to be minor and impacted derivatives will continue to apply hedge accounting. These elections did not have a material impact on the Bank’s financial condition, results of operations, or cash flows.
ASU 2022-01: Fair Value Hedging – Portfolio Layer Method	This ASU expands the current last-of-layer method to apply fair value hedging by allowing multiple hedged layers of a single closed portfolio under the method. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. Additionally, among other things, this ASU: • expands the scope of the portfolio layer method to include nonprepayable assets • specifies eligible hedging instruments in a single-layer hedge • provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method, and; • specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the closed portfolio.	This ASU was effective for the Bank beginning on January 1, 2023.	The adoption of this ASU did not have an impact on the Bank's financial statements. The Bank will continue to assess opportunities enabled by the new guidance to expand its risk management strategies.
ASU 2022-02: Troubled Debt Restructurings and Vintage Disclosures	This ASU eliminates the accounting guidance for troubled debt restructurings by creditors that have adopted the current expected credit losses methodology while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors made to borrowers experiencing financial difficulty. Additionally, this guidance requires disclosure of current-period gross write-offs by year of origination for financing receivables.	This ASU was effective for the Bank beginning on January 1, 2023.	The adoption of this ASU did not have a material impact on the Bank's financial statements, including the Bank’s MPF portfolio.

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Advances

9 Months Ended

Sep. 30, 2023

Advances [Abstract]

Advances

Advances

    General Terms. The Bank offers a wide-range of fixed- and variable-rate advance products with different maturities, interest rates, payment characteristics and optionality. Fixed-rate advances generally have maturities ranging from overnight to 30 years. Variable-rate advances generally have maturities ranging up to 10 years, and the interest rates reset periodically at a fixed spread to SOFR.

The following table details the Bank’s advances portfolio by year of redemption and weighted-average interest rate as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023				December 31, 2022
Year of Redemption	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	36,172,201	5.22	%	$	28,672,440	4.28	%
Due after 1 year through 2 years	25,051,644		5.12		21,421,482		4.17
Due after 2 years through 3 years	11,610,152		5.28		13,136,090		4.30
Due after 3 years through 4 years	2,001,152		3.72		4,966,948		4.38
Due after 4 years through 5 years	1,678,407		4.33		865,373		3.37
Thereafter	180,126		3.29		166,538		2.84
Total par value	76,693,682		5.13	%	69,228,871		4.24	%
Deferred prepayment fees	(639)				(940)
Hedging adjustments	(490,883)				(371,695)
Total book value (1)	$	76,202,160			$	68,856,236

Notes:

(1) Amounts exclude accrued interest receivable of $406.7 million and $241.8 million at September 30, 2023 and December 31, 2022.

The Bank offers certain advances to members that provide a member the right, based upon predetermined exercise dates, to prepay the advance prior to maturity without incurring prepayment or termination fees (returnable advances).

At September 30, 2023 and December 31, 2022, the Bank did not have any advances with embedded features that met the requirements to separate the embedded feature from the host contract and designate the embedded feature as a stand-alone derivative.

The following table summarizes advances by the earlier of year of redemption or next call date as of September 30, 2023 and December 31, 2022.

	Year of Redemption or Next Call Date
(in thousands)	September 30, 2023		December 31, 2022
Due in 1 year or less	$	36,552,201	$	28,962,440
Due after 1 year through 2 years	25,039,144		21,131,482
Due after 2 years through 3 years	11,242,652		13,136,090
Due after 3 years through 4 years	2,001,152		4,966,948
Due after 4 years through 5 years	1,678,407		865,373
Thereafter	180,126		166,538
Total par value	$	76,693,682	$	69,228,871

Interest Rate Payment Terms. The following table details interest rate payment terms by year of redemption for advances as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate – overnight	$	1,373,249	$	1,792,810
Fixed-rate – term:
Due in 1 year or less	14,499,885		21,547,006
Thereafter	14,103,381		7,429,914
Total fixed-rate	29,976,515		30,769,730
Variable-rate:
Due in 1 year or less	20,299,067		5,332,624
Thereafter	26,418,100		33,126,517
Total variable-rate	46,717,167		38,459,141
Total par value	$	76,693,682	$	69,228,871

Credit Risk Exposure and Security Terms. The Bank’s potential credit risk from advances is primarily concentrated in commercial banks. As of September 30, 2023, the Bank had advances of $60.2 billion outstanding to the five largest borrowers, which represented 78.5% of the total principal amount of advances outstanding. Of these five, two had outstanding advance balances that were in excess of 10% of the total portfolio at September 30, 2023.

As of December 31, 2022, the Bank had advances of $54.3 billion outstanding to the five largest borrowers, which represented 78.5% of the total principal amount of advances outstanding. Of these five, three had outstanding advance balances that were in excess of 10% of the total portfolio at December 31, 2022.

Advances ACL. The Bank manages its total credit exposure (TCE), which includes advances, letters of credit, advance commitments, and other credit product exposure, through an integrated approach. This approach generally requires a credit limit to be established for each borrower and an ongoing review of each borrower’s financial condition in conjunction with the Bank's collateral and lending policies to limit risk of loss while balancing each borrower's need for a reliable source of funding. Eligible collateral and collateral requirements can vary based on the type of member: commercial banks, insurance companies, credit unions, de novo banks and CDFIs.

In addition, the Bank lends to its members in accordance with the FHLBank Act and Finance Agency regulations. Specifically, the FHLBank Act requires the Bank to obtain collateral to fully secure credit products. The estimated value of the collateral required to secure each member’s credit products is calculated by applying collateral weightings, or haircuts, to the value of the collateral. The Bank primarily accepts cash, certain investment securities, residential mortgage loans, and other real estate related assets as collateral. In addition, Community Financial Institutions (CFIs) are eligible to utilize expanded statutory collateral provisions for small business, agriculture, and community development loans. The Bank’s capital stock owned by the borrowing member is pledged as secondary collateral. Collateral arrangements may vary depending upon borrower credit quality, financial condition and performance, borrowing capacity, and overall credit exposure to the borrower. The Bank can require additional or substitute collateral to help ensure that credit products continue to be secured by adequate collateral. Management of the Bank believes that these policies effectively manage the Bank’s credit risk from credit products.

Based upon the financial condition of the member, the Bank either allows a member to retain physical possession of the collateral assigned to the Bank or requires the member to specifically deliver physical possession or control of the collateral to the Bank or its custodians. However, regardless of the member's financial condition, the Bank always takes possession or control of securities used as collateral. The Bank perfects its security interest in all pledged collateral. The FHLBank Act affords any security interest granted to the Bank by a member (or an affiliate of a member) priority over the claims or rights of any other party, except for claims or rights of a third-party that would be otherwise entitled to priority under applicable law and that are held by a bona fide purchaser for value or by a secured party holding a prior perfected security interest.

Using a risk-based approach, the Bank considers the payment status, collateral types and concentration levels, and borrower’s financial condition to be indicators of credit quality on its credit products. At September 30, 2023 and December 31, 2022, the Bank had rights to collateral on a member-by-member basis with a value in excess of its outstanding extensions of credit.

    The Bank continues to evaluate and, as necessary, make changes to its collateral guidelines based on current market conditions. At September 30, 2023 and December 31, 2022, the Bank did not have any credit products that were past due, on nonaccrual status, or considered impaired. In addition, the Bank did not have any modifications related to advances with borrowers experiencing financial difficulties during the first nine months of 2023.

The Bank evaluates its advances for an ACL on a collective, or pooled basis unless an individual assessment is deemed necessary because the instruments do not possess similar risk characteristics. The Bank pools advances by member type, as noted above. Based on the collateral held as security, the Bank's credit extension and collateral policies and repayment history on advances, including that the Bank has not incurred any credit losses since inception, the Bank has not recorded any ACL at September 30, 2023 or December 31, 2022.

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Mortgage Loans Held for Portfolio

9 Months Ended

Sep. 30, 2023

Receivables [Abstract]

Mortgage Loans Held for Portfolio

Mortgage Loans Held for Portfolio

Under the MPF Program, the Bank invests in mortgage loans that it purchases from its participating members and housing associates. The Bank’s participating members originate, service, and credit enhance residential mortgage loans that are sold to the Bank. See Note 8 for further information regarding transactions with related parties.

The following table presents balances as of September 30, 2023 and December 31, 2022 for mortgage loans held for portfolio.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate long-term single-family mortgages (1)	$	4,485,907	$	4,388,461
Fixed-rate medium-term single-family mortgages (1)	122,402		140,270
Total par value	4,608,309		4,528,731
Premiums	69,559		73,703
Discounts	(11,607)		(10,224)
Hedging adjustments	617		1,918
Total mortgage loans held for portfolio (2)	$	4,666,878	$	4,594,128
Allowance for credit losses on mortgage loans	(2,971)		(3,240)
Mortgage loans held for portfolio, net	$	4,663,907	$	4,590,888

Note:

(1) Long-term is defined as greater than 15 years. Medium-term is defined as a term of 15 years or less.

(2) Amounts exclude accrued interest receivable of $23.8 million at September 30, 2023 and $22.5 million at December 31, 2022.

The following table details the par value of mortgage loans held for portfolio outstanding categorized by type as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Conventional loans	$	4,502,487	$	4,415,876
Government-guaranteed/insured loans	105,822		112,855
Total par value	$	4,608,309	$	4,528,731

Conventional MPF Loans - Credit Enhancements (CE). The conventional MPF loans held for portfolio are required to be credit enhanced as determined through the use of a validated model so the risk of loss is limited to the losses within the Bank's risk tolerance. The Bank and its participating financial institution (PFI) share the risk of credit losses on conventional MPF loan products held for portfolio, by structuring potential losses into layers with respect to each master commitment. After considering the borrower’s equity and any Primary Mortgage Insurance (PMI), credit losses on mortgage loans in a master commitment are then absorbed by the Bank’s First Loss Account (FLA). If applicable to the MPF product, the Bank will withhold a PFI’s scheduled performance CE fee in order to reimburse the Bank for any losses allocated to the FLA (recaptured CE Fees). If the FLA is exhausted, the credit losses are then absorbed by the PFI up to an agreed upon CE amount. The CE amount could be covered by supplemental mortgage insurance (SMI) obtained by the PFI. Thereafter, any remaining credit losses are absorbed by the Bank.

Payment Status of Mortgage Loans. Payment status is the key credit quality indicator for conventional mortgage loans and allows the Bank to monitor the migration of past due loans. Past due loans are those where the borrower has failed to make

timely payments of principal and/or interest in accordance with the terms of the loan. Other delinquency statistics include nonaccrual loans and loans in process of foreclosure.

Credit Quality Indicator for Conventional Mortgage Loans. The following table presents the payment status for conventional mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Origination Year
Payment Status, at amortized cost (1)	Prior to 2019		2019 to 2023		Total
Past due 30-59 days	$	21,655	$	25,122	$	46,777
Past due 60-89 days	6,661		6,507		13,168
Past due 90 days or more	8,647		9,116		17,763
Total past due loans	$	36,963	$	40,745	$	77,708
Current loans	1,177,602		3,303,457		4,481,059
Total conventional loans	$	1,214,565	$	3,344,202	$	4,558,767
	December 31, 2022
	Origination Year
Payment Status, at amortized cost (1)	Prior to 2018		2018 to 2022		Total
Past due 30-59 days	$	13,369	$	19,806	$	33,175
Past due 60-89 days	4,100		6,321		10,421
Past due 90 days or more	8,216		9,856		18,072
Total past due loans	$	25,685	$	35,983	$	61,668
Current loans	1,109,321		3,307,745		4,417,066
Total conventional loans	$	1,135,006	$	3,343,728	$	4,478,734

Note:

(1) The amortized cost at September 30, 2023 and December 31, 2022 excludes accrued interest receivable.

Other Delinquency Statistics. The following table presents the delinquency statistics for the Bank’s mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	8,974		$	947		$	9,921
Serious delinquency rate (3)	0.4		%	1.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	1,707		$	1,707
Loans on nonaccrual status	$	20,997		$	—		$	20,997
	December 31, 2022
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	7,873		$	1,352		$	9,225
Serious delinquency rate (3)	0.4		%	2.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	3,182		$	3,182
Loans on nonaccrual status	$	20,950		$	—		$	20,950

Note:

(1) Amounts presented at amortized cost.

(2) Includes loans where the decision of foreclosure or similar alternative such as pursuit of deed-in-lieu has been reported. Loans in process of foreclosure are included in past due or current loans dependent on their delinquency status.

(3) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the total loan portfolio class.

Mortgage Loans Held for Portfolio ACL. Conventional MPF - Expected Losses. Conventional loans are evaluated collectively when similar risk characteristics exist. Conventional loans that do not share risk characteristics with other pools are evaluated for expected credit losses on an individual basis. The Bank determines its allowances 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. The Bank uses a third-party model to estimate expected credit losses over the life of the loans. The estimate of the expected credit losses includes coverage of certain losses by PMI, if applicable. The model relies on a number of inputs, such as housing price forecasts and interest rates as well as historical borrower behavior experience. The Bank’s reasonable and supportable forecast for housing prices is two years. The Bank then reverts to historic averages over a three year period. The Bank may incorporate a qualitative adjustment to the model results, if deemed appropriate, based on current market conditions or results.

The estimated credit loss on collateral dependent loans is charged-off against the reserve. However, if the estimated loss can be recovered through CE, a receivable is established, resulting in a net charge-off. A mortgage loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be substantially through the sale of the underlying collateral. The expected credit loss of a collateral dependent mortgage loan to determine the charge-off is equal to the difference between the amortized cost of the loan and the estimated fair value of the collateral, less estimated selling costs. The estimate of the expected credit losses includes coverage of certain losses by PMI, if applicable. The estimated fair value of the collateral is determined based on a value provided by a third-party’s retail-based Automated Valuation Model (AVM). The Bank adjusts the AVM based on the amount it has historically received on liquidations. Expected recoveries of prior charge-offs, as determined by a third-party model, if any, are included in the allowance for credit losses.

Conventional MPF - Expected Recoveries. The Bank recognizes a recovery through the provision (reversal) for credit losses when expected lifetime credit losses are less than the amounts previously charged-off. This includes potentially recording a negative ACL for certain of the Bank's MPF products. The reduction to the ACL for expected recoveries is partially offset by a reversal of expected CE, resulting in a net impact to the Bank's Statements of Condition.

Conventional MPF - Application of CE. The Bank also incorporates associated CE, if any, to determine its estimate of expected credit losses. The Bank records an ACL for expected credit losses that exceed the amount the Bank expects to receive from available CE. Potential recoveries from CE for conventional loans are evaluated at the individual master commitment level to determine the CE available to recover losses on loans under each individual master commitment.

Conventional MPF - Rollforward of ACL

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	3,256	$	3,499	$	3,240	$	3,412
(Charge-offs) Recoveries, net (1)	(21)		99		9		326
Provision (reversal) for credit losses	(264)		33		(278)		(107)
Balance, end of period	$	2,971	$	3,631	$	2,971	$	3,631

Note:

(1) Net charge-offs that the Bank does not expect to recover through CE receivable.

Government-Guaranteed or -Insured Mortgage Loans. The Bank invests in government-guaranteed or insured fixed-rate mortgage loans secured by one-to-four family residential properties. Government-guaranteed or insured mortgage loans are those insured or guaranteed by the Federal Housing Administration (FHA), Department of Veterans Affairs (VA), the Rural Housing Service (RHS) of the Department of Agriculture and/or by 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 guarantee or insurance with respect to defaulted government-guaranteed or -insured mortgage loans. Any losses on these loans that are not recovered from the issuer or the guarantor are absorbed by the servicer. Therefore, the Bank only has credit risk for these loans if the servicer fails to pay for losses not covered by the guarantee or insurance, but in such instance, the Bank would have recourse against the servicer for such failure. Based on the Bank's assessment of its servicers and the collateral backing the loans, the risk of loss was immaterial. Consequently, the Bank has not recorded an ACL for government-guaranteed or -insured mortgage loans at September 30, 2023 or December 31, 2022. Furthermore, none of these mortgage loans have been placed on non-accrual status because of the U.S. government guarantee or insurance on these loans and the contractual obligation of the loan servicer to repurchase the loans when certain criteria are met.

Real Estate Owned (REO). The amount of REO reported in Other assets on the Statement of Condition was immaterial at both September 30, 2023 and December 31, 2022.

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Consolidated Obligations

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Consolidated Obligations

Consolidated Obligations

Consolidated obligations consist of bonds and discount notes. The FHLBanks issue consolidated obligations through the OF as their agent. In connection with each debt issuance, each FHLBank specifies the amount of debt it wants to have issued on its behalf. The OF tracks the amount of debt issued on behalf of each FHLBank. The Bank records as a liability its specific portion of consolidated obligations for which it is the primary obligor.

The Finance Agency and the U.S. Secretary of the Treasury oversee the issuance of FHLBank debt through the OF. Bonds may be issued to raise short-, intermediate-, and long-term funds for the FHLBanks and are not subject to any statutory or regulatory limits on their maturity. Discount notes are issued primarily to raise short-term funds and have original maturities of up to one year. These notes generally sell at less than their face amount and are redeemed at par value when they mature.

Although the Bank is primarily liable for its portion of consolidated obligations, the Bank is also jointly and severally liable with the other ten FHLBanks for the payment of principal and interest on all consolidated obligations of each of the FHLBanks. The Finance Agency, at its discretion, may require any FHLBank to make principal or interest payments due on any consolidated obligations whether or not the consolidated obligation represents a primary liability of such FHLBank.

Although an FHLBank has never paid the principal or interest payments due on a consolidated obligation on behalf of another FHLBank, if one FHLBank is required to make such payments, Finance Agency regulations provide that the paying FHLBank is entitled to reimbursement from the non-complying FHLBank for any payments made on its behalf and other associated costs including interest to be determined by the Finance Agency. If the Finance Agency determines that the non-complying FHLBank is unable to satisfy its repayment obligations, then the Finance Agency may allocate the outstanding liabilities of the non-complying FHLBank among the remaining FHLBanks on a pro rata basis in proportion to each FHLBank’s participation in all consolidated obligations outstanding. However, the Finance Agency reserves the right to allocate the outstanding liabilities for the consolidated obligations among the FHLBanks in any other manner it may determine to ensure that the FHLBanks operate in a safe and sound manner. The par amounts of the 11 FHLBanks’ outstanding consolidated obligations were $1,229.9 billion at September 30, 2023 and $1,181.7 billion at December 31, 2022. Additional detailed information regarding consolidated obligations including general terms and interest rate payment terms can be found in Note 9 to the audited financial statements in the Bank's 2022 Form 10-K.

The following table details interest rate payment terms for the Bank's consolidated obligation bonds as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Par value of consolidated bonds:
Fixed-rate	$	64,145,995	$	39,983,295
Step-up	2,083,000		3,124,000
Floating-rate	21,600,400		14,408,000
Total par value	$	87,829,395	$	57,515,295
Bond premiums	$	38,861	$	47,515
Bond discounts	(14,546)		(14,069)
Concession fees	(6,073)		(5,008)
Hedging adjustments	(1,005,089)		(1,072,278)
Total book value	$	86,842,548	$	56,471,455

Maturity Terms. The following table presents a summary of the Bank’s consolidated obligation bonds outstanding by year of contractual maturity and weighted-average interest rate at September 30, 2023 and December 31, 2022.

	September 30, 2023				December 31, 2022
(dollars in thousands) Year of Contractual Maturity	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	57,480,770	4.79	%	$	30,747,975	3.72	%
Due after 1 year through 2 years	14,447,865		4.26		11,491,385		3.09
Due after 2 years through 3 years	6,557,100		2.20		3,263,725		2.16
Due after 3 years through 4 years	3,879,200		2.22		6,557,800		1.25
Due after 4 years through 5 years	2,204,250		3.61		1,850,300		3.09
Thereafter	3,260,210		2.68		3,604,110		2.37
Total par value	$	87,829,395	4.29	%	$	57,515,295	3.12	%

The following table presents the Bank’s consolidated obligation bonds outstanding between noncallable and callable as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Noncallable	$	47,274,895	$	35,816,795
Callable	40,554,500		21,698,500
Total par value	$	87,829,395	$	57,515,295

The following table presents consolidated obligation bonds outstanding by the earlier of contractual maturity or next call date as of September 30, 2023 and December 31, 2022.

(in thousands) Year of Contractual Maturity or Next Call Date	September 30, 2023		December 31, 2022
Due in 1 year or less	$	72,520,270	$	47,036,975
Due after 1 year through 2 years	10,188,365		6,573,385
Due after 2 years through 3 years	1,997,100		1,049,725
Due after 3 years through 4 years	617,200		1,035,800
Due after 4 years through 5 years	1,397,250		392,300
Thereafter	1,109,210		1,427,110
Total par value	$	87,829,395	$	57,515,295

Consolidated Obligation Discount Notes. Consolidated obligation discount notes are issued to raise short-term funds. Discount notes are consolidated obligations with original maturities up to one year. These notes are issued at less than their face amount and redeemed at par value when they mature. The following table details the Bank’s consolidated obligation discount notes as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023			December 31, 2022
Book value	$	12,520,373		$	33,745,478
Par value	12,625,033			34,007,058
Weighted average interest rate (1)	5.31		%	4.25		%

Note:

(1) Represents yield to maturity excluding concession fees and hedging adjustments.

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Transactions with Related Parties

9 Months Ended

Sep. 30, 2023

Related Party Transactions [Abstract]

Transactions with Related Parties

Transactions with Related Parties

The following table includes significant outstanding related party member-activity balances.

(in thousands)	September 30, 2023		December 31, 2022
Advances(1)	$	43,382,124	$	42,401,975
Letters of credit (2)	21,611,992		16,928,206
MPF loans	209,693		263,795
Deposits	40,655		32,335
Capital stock	1,971,571		1,891,978

Note:

(1) Par balances

(2) Letters of credit are off-balance sheet commitments.

The following table summarizes the effects on the Statements of Income corresponding to the related party member balances above. Amounts related to interest expense on deposits were immaterial for the periods presented.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Interest income on advances (1)	$	601,408	$	181,760	$	1,824,881	$	283,054
Interest income on MPF loans	2,628		3,318		8,216		7,431
Letters of credit fees	8,067		90		19,127		4,694

Note:

(1) Interest income on advances includes contractual interest income and prepayment fees. The effect of derivative activities is not included.

The following table summarizes the effect of the MPF activities with FHLBank of Chicago.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Servicing fee expense	$	952	$	890	$	2,833	$	2,674

(in thousands)	September 30, 2023		December 31, 2022
Interest-bearing deposits maintained with FHLBank of Chicago	$	5,483	$	5,119

From time to time, the Bank may borrow from or lend to other FHLBanks on a short-term uncollateralized basis. The amount loaned by the Bank to other FHLBanks and repaid was $0 and $750 million during the three and nine months ended September 30, 2023 and $1.0 billion and $1.8 billion during the three and nine months ended September 30, 2022. There was no amount borrowed from and repaid to other FHLBanks during the three and nine months ended September 30, 2023 and $2.0 billion during the three and nine months ended September 30, 2022.

Subject to mutually agreed upon terms, on occasion, an FHLBank may transfer at fair value its primary debt obligations to another FHLBank. During the three and nine months ended September 30, 2023 and 2022, there were no transfers of debt between the Bank and another FHLBank.

From time to time, a member of one FHLBank may be acquired by a member of another FHLBank. When such an acquisition occurs, the two FHLBanks may agree to transfer at fair value the loans of the acquired member to the FHLBank of the surviving member. The FHLBanks may also agree to the purchase and sale of any related hedging instrument. The Bank had no such activity during the three and nine months ended September 30, 2023 and 2022.

    In the ordinary course of business, the Bank may utilize products and services, provided at normal market rates and terms, from its members to support its operations. Additional discussions regarding related party transactions can be found in Note 13 to the audited financial statements in the Bank's 2022 Form 10-K.

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Estimated Fair Values

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Estimated Fair Values

Estimated Fair Values

Fair value amounts have been determined by the Bank using available market information and appropriate valuation methods. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). These estimates are based on recent market data and other pertinent information available to the Bank at September 30, 2023 and December 31, 2022. Although the management of the Bank believes that the valuation methods are appropriate and provide a reasonable determination of the fair value of these financial instruments, there are inherent limitations in any valuation technique. Therefore, these fair values are not necessarily equal to the amounts that would be realized in current market transactions, although they do reflect the Bank’s judgment of how a market participant would estimate the fair values.

The carrying value and estimated fair value of the Bank’s financial instruments at September 30, 2023 and December 31, 2022 are presented in the table below.

Fair Value Summary Table
	September 30, 2023
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	20,328	$	20,328	$	—	$	—	$	—	$	20,328
Interest-bearing deposits	3,040,744		3,040,744		—		—		—		3,040,744
Securities purchased under agreement to resell (2)	3,380,000		—		3,379,996		—		—		3,379,996
Federal funds sold	3,536,000		—		3,536,000		—		—		3,536,000
Trading securities	212,634		—		212,634		—		—		212,634
AFS securities	13,649,563		—		13,522,705		126,857		—		13,649,562
HTM securities	1,247,367		—		1,094,520		43,609		—		1,138,129
Advances	76,202,160		—		76,073,438		—		—		76,073,438
Mortgage loans held for portfolio, net	4,663,907		—		3,941,940		—		—		3,941,940
BOB loans, net	25,354		—		—		25,354		—		25,354
Accrued interest receivable	498,984		—		498,984		—		—		498,984
Derivative assets	425,630		—		317,887		—		107,743		425,630
Liabilities:
Deposits	$	855,987	$	—	$	855,987	$	—	$	—	$	855,987
Discount notes	12,520,373		—		12,515,800		—		—		12,515,800
Bonds	86,842,548		—		86,048,254		—		—		86,048,254
Mandatorily redeemable capital stock(3)	27,996		28,597		—		—		—		28,597
Accrued interest payable(3)	807,851		—		807,250		—		—		807,250
Derivative liabilities	10,424		—		966,342		—		(955,918)		10,424

	December 31, 2022
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	13,242	$	13,242	$	—	$	—	$	—	$	13,242
Interest-bearing deposits	2,471,135		2,471,135		—		—		—		2,471,135
Securities purchased under agreement to resell(2)	3,200,000		—		3,200,137		—		—		3,200,137
Federal funds sold	3,050,000		—		3,050,141		—		—		3,050,141
Trading securities	214,008		—		214,008		—		—		214,008
AFS securities	12,190,560		—		12,048,289		142,271		—		12,190,560
HTM securities	956,471		—		824,230		50,052		—		874,282
Advances	68,856,236		—		68,548,367		—		—		68,548,367
Mortgage loans held for portfolio, net	4,590,888		—		4,039,588		—		—		4,039,588
BOB loans, net	22,998		—		—		22,998		—		22,998
Accrued interest receivable	310,081		—		310,081		—		—		310,081
Derivative assets	228,996		—		60,626		—		168,370		228,996
Liabilities:
Deposits	$	553,279	$	—	$	553,279	$	—	$	—	$	553,279
Discount notes	33,745,478		—		33,739,166		—		—		33,739,166
Bonds	56,471,455		—		55,694,094		—		—		55,694,094
Mandatorily redeemable capital stock(3)	27,763		28,321		—		—		—		28,321
Accrued interest payable(3)	287,539		—		286,981		—		—		286,981
Derivative liabilities	13,438		—		1,009,632		—		(996,194)		13,438

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

(2) Based on the fair value of the related collateral held, the securities purchased under agreements to resell were fully collateralized for the periods presented. There were no offsetting liabilities related to these securities at September 30, 2023 and December 31, 2022. These instruments’ maturity term is overnight.

(3) The estimated fair value amount for the mandatorily redeemable capital stock line item includes accrued dividend interest; this amount is excluded from the estimated fair value for the accrued interest payable line item.

Fair Value Hierarchy. The fair value hierarchy is used to prioritize the inputs used to measure fair value by maximizing the use of observable inputs. The inputs are evaluated and an overall level for the fair value measurement is determined. This overall level is an indication of the market observability of the fair value measurement for the asset or liability.

    The fair value hierarchy prioritizes the inputs used to measure fair value into three broad levels:

    Level 1 Inputs - Quoted prices (unadjusted) for identical assets or liabilities in an active market that the reporting entity can access on the measurement date. An active market for the asset or liability is a market in which the transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

    Level 2 Inputs - Inputs other than quoted prices within Level 1 that are observable inputs for the asset or liability, either directly or indirectly. If the asset or liability has a specified (contractual) term, a Level 2 input must be observable for substantially the full term of the asset or liability. Level 2 inputs include the following: (1) quoted prices for similar assets or liabilities in active markets; (2) quoted prices for identical or similar assets or liabilities in markets that are not active or in which little information is released publicly; (3) inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates and yield curves that are observable at commonly quoted intervals, and implied volatilities) and (4) inputs that are derived principally from or corroborated by observable market data by correlation or other means.

    Level 3 Inputs - Valuations derived from techniques in which one or more significant inputs are not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

The Bank reviews its fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation inputs may result in a reclassification of certain assets or liabilities.

Summary of Valuation Methodologies and Primary Inputs

    The valuation methodologies and primary inputs used to develop the measurement of fair value for assets and liabilities that are measured at fair value on a recurring or nonrecurring basis in the Statement of Condition are listed below.

    Investment Securities – non-MBS. The Bank uses either the income or market approach to determine the estimated fair value of non-MBS investment securities.

    For instruments that use the income approach, the significant inputs include a market-observable interest rate curve and a discount spread, if applicable. The market-observable interest rate curves and the related instrument types are as follows:

▪CO curve: GSE and other U.S. obligations

    The Bank uses a market approach for its state and local agency bonds and U.S. Treasury obligations. For state and local agency bonds, the Bank obtains prices from multiple designated third-party vendors when available, and the default price is the average of the prices obtained. Otherwise, the approach is generally consistent with the approach outlined below for Investment Securities - MBS. For U.S. Treasury obligations, prices are obtained from a third-party vendor based on daily trade activity or dealer quotes. For certain short-term U.S. Treasury obligations, market prices are not available, and the Bank uses an income approach.

Investment Securities – MBS. To value MBS holdings, the Bank obtains prices from multiple third-party pricing vendors, when available. The pricing vendors use various proprietary models to price MBS. The inputs to those models are derived from various sources including, but not limited to: benchmark yields, reported trades, dealer estimates, issuer spreads, benchmark securities, bids, offers and other market-related data. Since many MBS do not trade on a daily basis, the pricing vendors use available information such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to determine the prices for individual securities, as applicable. Each pricing vendor has an established challenge process in place for all MBS valuations, which facilitates resolution of potentially erroneous prices identified by the Bank.

During the year, the Bank conducts reviews of its pricing vendors to enhance its understanding of the vendors' pricing processes, methodologies and control procedures. To the extent available, the Bank also reviews the vendors' independent auditors' reports regarding the internal controls over their valuation processes.

The Bank's valuation technique first requires the establishment of a median price for each security. All prices that are within a specified tolerance threshold of the median price are included in the cluster of prices that are averaged to compute a default price. Prices that are outside the threshold (outliers) are subject to further analysis (including, but not limited to, comparison to prices provided by an additional third-party valuation service, prices for similar securities, and/or non-binding dealer estimates) to determine if an outlier is a better estimate of fair value. If an outlier (or some other price identified in the analysis) is determined to be a better estimate of fair value, then the outlier (or the other price as appropriate) is used as the price rather than the default price. If, on the other hand, the analysis confirms that an outlier (or outliers) is (are) in fact not representative of fair value and the default price is the best estimate, then the default price is used as the final price. In all cases, the final price is used to determine the fair value of the security. If all prices received for a security are outside the tolerance threshold level of the median price, then there is no default price, and the final price is determined by an evaluation of all outlier prices as described above.

As of September 30, 2023, for substantially all of its MBS, the Bank received a price from all of its vendors and the default price was the final price. Based on the Bank's reviews of the pricing methods including inputs and controls employed by the third-party pricing vendors and the relative lack of dispersion among the vendor prices (or, in those instances in which there were outliers or significant yield variances, the Bank's additional analyses), the Bank believes the final prices are representative of the prices that would have been received if the assets had been sold at the measurement date (i.e., exit prices) and further that the fair value measurements are classified appropriately in the fair value hierarchy. There continues to be unobservable inputs and a lack of significant market activity for private label MBS; therefore, the Bank classified private label MBS as Level 3.

Derivative Assets/Liabilities. The Bank bases the fair values of derivatives with similar terms on market prices, when available. However, market prices do not exist for many types of derivative instruments. Consequently, fair values for these instruments are estimated using standard valuation techniques such as discounted cash flow analysis and comparisons to similar instruments. Estimates developed using these methods are highly subjective and require judgment regarding significant matters

such as the amount and timing of future cash flows, volatility of interest rates and the selection of discount rates that appropriately reflect market and credit risks. In addition, the fair value estimates for these instruments include accrued interest receivable/payable which approximate their carrying values due to their short-term nature.

    The discounted cash flow analysis used to determine the net present value of derivative instruments utilizes market-observable inputs (inputs that are actively quoted and can be validated to external sources). Inputs by class of derivative are as follows:

    Interest-rate related:

▪Discount rate assumption. SOFR curve for cleared derivatives and SOFR uncleared derivatives. Overnight Index Swap (OIS) curve for all other uncleared derivatives.

▪Forward interest rate assumption (rates projected in order to calculate cash flows through the designated term of the hedge relationship). OIS curve or SOFR curve.

▪Volatility assumption. Market-based expectations of future interest rate volatility implied from current market prices for similar options.

    Mortgage delivery commitments:

▪TBA securities prices. Market-based prices of TBAs are determined by coupon class and expected term until settlement and a pricing adjustment reflective of the secondary mortgage market.

The Bank is subject to credit risk on uncleared derivatives transactions due to the potential nonperformance by the derivatives counterparties. To mitigate this risk, the Bank has entered into netting arrangements and security agreements that provide for delivery of collateral at specified levels. As a result, uncleared derivatives are recognized as collateralized-to-market and the fair value of uncleared derivatives excludes netting adjustments and collateral. The Bank has evaluated the potential for fair value adjustment due to uncleared counterparty credit risk and has concluded that no adjustments are necessary.

The Bank's credit risk exposure on cleared derivatives is mitigated through the delivery of initial margin to offset future changes in value and daily delivery of variation margin to offset changes in market value. This is executed through the use of a central counterparty, either CME clearing or LCH Ltd. Variation margin payments are daily settlement payments rather than collateral. Initial margin continues to be treated as collateral and accounted for separately.

The fair values of derivatives are netted by clearing agent and/or by counterparty pursuant to the provisions of each of the Bank’s netting agreements. If these netted amounts are positive, they are classified as an asset and, if negative, as a liability.

    Impaired Mortgage Loans Held for Portfolio and REO. The estimated fair values of impaired mortgage loans held for portfolio and real estate owned are determined based on values provided by a third party's retail-based AVM. The Bank adjusts the AVM value based on the amount it has historically received on liquidation.

    Subjectivity of Estimates. Estimates of the fair value of financial assets and liabilities using the methods described above are highly subjective and require judgments regarding significant matters such as the amount and timing of future cash flows, prepayment speed assumptions, expected interest rate volatility, possible distributions of future interest rates used to value options, and the selection of discount rates that appropriately reflect market and credit risks. The use of different assumptions could have a material effect on the fair value estimates. These estimates are susceptible to material near term changes because they are made as of a specific point in time.

Fair Value Measurements. The following tables present, for each hierarchy level, the Bank’s assets and liabilities that are measured at fair value on a recurring or non-recurring basis on its Statement of Condition at September 30, 2023 and December 31, 2022. The Bank measures certain mortgage loans held for portfolio at fair value when a charge-off is recognized and subsequently when the fair value of collateral less costs to sell is lower than the carrying amount. Real estate owned is measured using fair value when the assets' fair value less costs to sell is lower than the carrying amount.

	September 30, 2023
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	212,634	$	—	$	—	$	212,634
Total trading securities	$	—	$	212,634	$	—	$	—	$	212,634
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	3,525,693	$	—	$	—	$	3,525,693
GSE and TVA obligations	—		987,383		—		—		987,383
State or local agency obligations	—		160,045		—		—		160,045
MBS:
U.S. obligations single-family	—		1,341,918		—		—		1,341,918
GSE single-family	—		1,945,971		—		—		1,945,971
GSE multifamily	—		5,561,696		—		—		5,561,696
Private label	—		—		126,857		—		126,857
Total AFS securities	$	—	$	13,522,706	$	126,857	$	—	$	13,649,563
Derivative assets:
Interest rate related	$	—	$	317,880	$	—	$	107,743	$	425,623
Mortgage delivery commitments	—		7		—		—		7
Total derivative assets	$	—	$	317,887	$	—	$	107,743	$	425,630
Total recurring assets at fair value	$	—	$	14,053,227	$	126,857	$	107,743	$	14,287,827
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	966,222	$	—	$	(955,918)	$	10,304
Mortgage delivery commitments	—		120		—		—		120
Total recurring liabilities at fair value	$	—	$	966,342	$	—	$	(955,918)	$	10,424
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,743	$	—	$	5,743
REO	—		—		290		—		290
Total non-recurring assets at fair value	$	—	$	—	$	6,033	$	—	$	6,033

	December 31, 2022
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	214,008	$	—	$	—	$	214,008
Total trading securities	$	—	$	214,008	$	—	$	—	$	214,008
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	5,232,493	$	—	$	—	$	5,232,493
GSE and TVA obligations	—		1,125,743		—		—		1,125,743
State or local agency obligations	—		170,263		—		—		170,263
MBS:
U.S. obligations single-family	—		482,982		—		—		482,982
GSE single-family	—		1,881,037		—		—		1,881,037
GSE multifamily	—		3,155,771		—		—		3,155,771
Private label	—		—		142,271		—		142,271
Total AFS securities	$	—	$	12,048,289	$	142,271	$	—	$	12,190,560
Derivative assets:
Interest rate related	$	—	$	60,616	$	—	$	168,370	$	228,986
Mortgage delivery commitments	—		10		—		—		10
Total derivative assets	$	—	$	60,626	$	—	$	168,370	$	228,996
Total recurring assets at fair value	$	—	$	12,322,923	$	142,271	$	168,370	$	12,633,564
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	1,009,591	$	—	$	(996,194)	$	13,397
Mortgage delivery commitments	—		41		—		—		41
Total recurring liabilities at fair value	$	—	$	1,009,632	$	—	$	(996,194)	$	13,438
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,240	$	—	$	5,240
REO	—		—		403		—		403
Total non-recurring assets at fair value	$	—	$	—	$	5,643	$	—	$	5,643

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the Bank with the same clearing agent and/or counterparties.

Level 3 Disclosures for all Assets and Liabilities That Are Measured at Fair Value on a Recurring Basis. The following table presents a reconciliation of all assets and liabilities that are measured at fair value on the Statement of Condition using significant unobservable inputs (Level 3) for the nine months ended September 30, 2023 and 2022. For instruments carried at fair value, the Bank reviews the fair value hierarchy classifications each quarter. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out at fair value in the quarter in which the changes occur. There were no Level 3 transfers during the first nine months of 2023 or 2022.

	AFS Private Label MBS
	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	134,685	$	162,201	$	142,271	$	194,425
Total gains (losses) (realized/unrealized) included in:
(Provision) reversal for credit losses	(1,566)		(2,487)		(3,040)		(5,142)
Accretion of credit losses in interest income	1,660		2,534		4,939		6,955
Net unrealized gains (losses) on AFS in OCI	(4,659)		(5,861)		(8,461)		(17,015)
Settlements:
Settlements	(3,263)		(6,935)		(8,852)		(29,771)
Balance, end of period	$	126,857	$	149,452	$	126,857	$	149,452
Total amount of gains for the periods presented included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at September 30, 2023	$	94	$	(224)	$	1,899	$	1,494
Change in unrealized gains (losses) for the period included in other comprehensive income (loss) for assets held at September 30, 2023	$	(4,659)	$	(5,861)	$	(8,461)	$	(17,015)

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

The following table presents the Bank's various off-balance sheet commitments which are described in detail below.

(in thousands)	September 30, 2023						December 31, 2022
Notional amount	Expiration Date Within One Year		Expiration Date After One Year		Total		Total
Standby letters of credit outstanding (1) (2)	$	29,816,480	$	—	$	29,816,480	$	22,126,676
Commitments to fund additional advances and BOB loans	1,436		—		1,436		373
Commitments to purchase mortgage loans	24,854		—		24,854		10,287
Unsettled consolidated obligation discount notes, at par	576,000		—		576,000		15,370
Unsettled consolidated obligation bonds, at par	27,000		—		27,000		1,080,000

Notes:

(1) Excludes approved requests to issue future standby letters of credit of $0.9 million at September 30, 2023 and $0.0 million at December 31, 2022.

(2) Letters of credit in the amount of $7.3 billion at September 30, 2023 and $2.2 billion at December 31, 2022, have renewal language that permits the letter of credit to be renewed for an additional period with a maximum renewal period of approximately five years.

Commitments to Extend Credit on Standby Letters of Credit, Additional Advances and BOB Loans. Standby letters of credit are issued on behalf of members for a fee. A standby letter of credit is a financing arrangement between the Bank and its member. If the Bank is required to make payment for a beneficiary’s draw, these amounts are withdrawn from the member’s Demand Deposit Account (DDA). Any remaining amounts not covered by the withdrawal from the member’s DDA are converted into a collateralized overnight advance.

    Unearned fees related to standby letters of credit are recorded in other liabilities and had a balance of $5.6 million at September 30, 2023 and $4.2 million at December 31, 2022. The Bank manages the credit risk of each member on the basis of the member's TCE to the Bank which includes its standby letters of credit. The Bank has established parameters for the review, assessment, monitoring and measurement of credit risk related to these standby letters of credit as described in Note 3 - Advances.

Based on management’s credit analyses, collateral requirements, and adherence to the requirements set forth in Bank policy and Finance Agency regulations, the Bank has not recorded any additional liability on advance commitments and standby letters of credit which are collateralized at the time of issuance. The Bank records a liability with respect to BOB commitments, which is reflected in Other liabilities on the Statement of Condition.

The Bank does not have any legally binding or unconditional unused lines of credit for advances at September 30, 2023 or December 31, 2022. However, within the Bank's Rollover (weekly/monthly) advance product, there were conditional lines of credit outstanding of $10.4 billion at September 30, 2023 and $9.6 billion at December 31, 2022.

Commitments to Purchase Mortgage Loans. The Bank may enter into commitments that unconditionally obligate the Bank to purchase mortgage loans under the MPF Program. These delivery commitments are generally for periods not to exceed 60 days. Such commitments are recorded as derivatives.

Pledged Collateral. The Bank may pledge cash and securities, as collateral, related to derivatives. Refer to Note 5 - Derivatives and Hedging Activities in this Form 10-Q for additional information about the Bank's pledged collateral and other credit-risk-related contingent features.

Legal Proceedings. The Bank is subject to legal proceedings arising in the normal course of business. The Bank 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. After consultation with legal counsel, management does not anticipate that the ultimate liability, if any, arising out of these matters will have a material effect on the Bank's financial condition, results of operations or cash flows.

Notes 3, 5, 6, 7, and 8 also discuss other commitments and contingencies.

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Derivatives, Policy

The Bank is subject to credit risk due to the risk of nonperformance by counterparties to its derivative transactions. The Bank manages counterparty credit risk through credit analysis, collateral requirements, and adherence to the requirements set forth in its policies, U.S. Commodity Futures Trading Commission regulations, and Finance Agency regulations.

Uncleared Derivatives. For uncleared derivatives, the degree of credit risk depends on the extent to which netting arrangements are included in such contracts to mitigate the risk. The Bank requires collateral agreements with collateral delivery thresholds on all uncleared derivatives.

Uncleared derivative transactions executed on or after the effective date of the initial margin rules, are subject to two-way initial margin requirements as mandated by the Wall Street Reform and Consumer Protection Act (referred to as Dodd-Frank Act) if the Bank’s aggregate uncleared derivative transactions exposure to a counterparty exceeds a specific threshold. The initial margin is required to be certain investment securities that are held at a third-party custodian and do not change ownership, except upon the occurrence of certain events, including an event of default due to bankruptcy, insolvency, or similar proceeding. As of September 30, 2023, the Bank did not exceed initial margin thresholds and was not required to post two-way initial margin.

Generally, the Bank's ISDA agreements for uncleared derivatives have collateral delivery thresholds set to zero (subject to minimum transfer amounts). The Bank has a small number of legacy trades that require the Bank to post additional collateral with its counterparties if there is deterioration in the Bank's credit rating and the net liability position exceeds the relevant threshold.

Fair Value Measurement, Policy

Fair Value Hierarchy. The fair value hierarchy is used to prioritize the inputs used to measure fair value by maximizing the use of observable inputs. The inputs are evaluated and an overall level for the fair value measurement is determined. This overall level is an indication of the market observability of the fair value measurement for the asset or liability.

    The fair value hierarchy prioritizes the inputs used to measure fair value into three broad levels:

    Level 1 Inputs - Quoted prices (unadjusted) for identical assets or liabilities in an active market that the reporting entity can access on the measurement date. An active market for the asset or liability is a market in which the transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

    Level 2 Inputs - Inputs other than quoted prices within Level 1 that are observable inputs for the asset or liability, either directly or indirectly. If the asset or liability has a specified (contractual) term, a Level 2 input must be observable for substantially the full term of the asset or liability. Level 2 inputs include the following: (1) quoted prices for similar assets or liabilities in active markets; (2) quoted prices for identical or similar assets or liabilities in markets that are not active or in which little information is released publicly; (3) inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates and yield curves that are observable at commonly quoted intervals, and implied volatilities) and (4) inputs that are derived principally from or corroborated by observable market data by correlation or other means.

    Level 3 Inputs - Valuations derived from techniques in which one or more significant inputs are not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

The Bank reviews its fair value hierarchy classifications on a quarterly basis. Changes in the observability of the valuation inputs may result in a reclassification of certain assets or liabilities.

Fair Value of Financial Instruments, Policy

Investment Securities – non-MBS. The Bank uses either the income or market approach to determine the estimated fair value of non-MBS investment securities.

    For instruments that use the income approach, the significant inputs include a market-observable interest rate curve and a discount spread, if applicable. The market-observable interest rate curves and the related instrument types are as follows:

▪CO curve: GSE and other U.S. obligations

    The Bank uses a market approach for its state and local agency bonds and U.S. Treasury obligations. For state and local agency bonds, the Bank obtains prices from multiple designated third-party vendors when available, and the default price is the average of the prices obtained. Otherwise, the approach is generally consistent with the approach outlined below for Investment Securities - MBS. For U.S. Treasury obligations, prices are obtained from a third-party vendor based on daily trade activity or dealer quotes. For certain short-term U.S. Treasury obligations, market prices are not available, and the Bank uses an income approach.

Investment Securities – MBS. To value MBS holdings, the Bank obtains prices from multiple third-party pricing vendors, when available. The pricing vendors use various proprietary models to price MBS. The inputs to those models are derived from various sources including, but not limited to: benchmark yields, reported trades, dealer estimates, issuer spreads, benchmark securities, bids, offers and other market-related data. Since many MBS do not trade on a daily basis, the pricing vendors use available information such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to determine the prices for individual securities, as applicable. Each pricing vendor has an established challenge process in place for all MBS valuations, which facilitates resolution of potentially erroneous prices identified by the Bank.

The Bank's valuation technique first requires the establishment of a median price for each security. All prices that are within a specified tolerance threshold of the median price are included in the cluster of prices that are averaged to compute a default price. Prices that are outside the threshold (outliers) are subject to further analysis (including, but not limited to, comparison to prices provided by an additional third-party valuation service, prices for similar securities, and/or non-binding dealer estimates) to determine if an outlier is a better estimate of fair value. If an outlier (or some other price identified in the analysis) is determined to be a better estimate of fair value, then the outlier (or the other price as appropriate) is used as the price rather than the default price. If, on the other hand, the analysis confirms that an outlier (or outliers) is (are) in fact not representative of fair value and the default price is the best estimate, then the default price is used as the final price. In all cases, the final price is used to determine the fair value of the security. If all prices received for a security are outside the tolerance threshold level of the median price, then there is no default price, and the final price is determined by an evaluation of all outlier prices as described above.Derivative Assets/Liabilities. The Bank bases the fair values of derivatives with similar terms on market prices, when available. However, market prices do not exist for many types of derivative instruments. Consequently, fair values for these instruments are estimated using standard valuation techniques such as discounted cash flow analysis and comparisons to similar instruments. Estimates developed using these methods are highly subjective and require judgment regarding significant matters

such as the amount and timing of future cash flows, volatility of interest rates and the selection of discount rates that appropriately reflect market and credit risks. In addition, the fair value estimates for these instruments include accrued interest receivable/payable which approximate their carrying values due to their short-term nature.

    The discounted cash flow analysis used to determine the net present value of derivative instruments utilizes market-observable inputs (inputs that are actively quoted and can be validated to external sources). Inputs by class of derivative are as follows:

    Interest-rate related:

▪Discount rate assumption. SOFR curve for cleared derivatives and SOFR uncleared derivatives. Overnight Index Swap (OIS) curve for all other uncleared derivatives.

▪Forward interest rate assumption (rates projected in order to calculate cash flows through the designated term of the hedge relationship). OIS curve or SOFR curve.

▪Volatility assumption. Market-based expectations of future interest rate volatility implied from current market prices for similar options.

    Mortgage delivery commitments:

▪TBA securities prices. Market-based prices of TBAs are determined by coupon class and expected term until settlement and a pricing adjustment reflective of the secondary mortgage market.

The Bank is subject to credit risk on uncleared derivatives transactions due to the potential nonperformance by the derivatives counterparties. To mitigate this risk, the Bank has entered into netting arrangements and security agreements that provide for delivery of collateral at specified levels. As a result, uncleared derivatives are recognized as collateralized-to-market and the fair value of uncleared derivatives excludes netting adjustments and collateral. The Bank has evaluated the potential for fair value adjustment due to uncleared counterparty credit risk and has concluded that no adjustments are necessary.

The Bank's credit risk exposure on cleared derivatives is mitigated through the delivery of initial margin to offset future changes in value and daily delivery of variation margin to offset changes in market value. This is executed through the use of a central counterparty, either CME clearing or LCH Ltd. Variation margin payments are daily settlement payments rather than collateral. Initial margin continues to be treated as collateral and accounted for separately.

The fair values of derivatives are netted by clearing agent and/or by counterparty pursuant to the provisions of each of the Bank’s netting agreements. If these netted amounts are positive, they are classified as an asset and, if negative, as a liability.

    Impaired Mortgage Loans Held for Portfolio and REO. The estimated fair values of impaired mortgage loans held for portfolio and real estate owned are determined based on values provided by a third party's retail-based AVM. The Bank adjusts the AVM value based on the amount it has historically received on liquidation.

    Subjectivity of Estimates. Estimates of the fair value of financial assets and liabilities using the methods described above are highly subjective and require judgments regarding significant matters such as the amount and timing of future cash flows, prepayment speed assumptions, expected interest rate volatility, possible distributions of future interest rates used to value options, and the selection of discount rates that appropriately reflect market and credit risks. The use of different assumptions could have a material effect on the fair value estimates. These estimates are susceptible to material near term changes because they are made as of a specific point in time.

Fair Value Transfer, Policy

For instruments carried at fair value, the Bank reviews the fair value hierarchy classifications each quarter. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out at fair value in the quarter in which the changes occur.

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Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Trading Securities

The following table presents the fair value of trading securities by major security type at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
GSE obligations	$	212,634	$	214,008
Total	$	212,634	$	214,008

Net Gains (Losses) on Trading Securities

The following table presents net gains (losses) on trading securities for the first nine months of 2023 and 2022.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Net unrealized gains (losses) on trading securities held at period-end	$	(2,437)	$	(8,530)	$	(1,566)	$	(28,664)
Net gains (losses) on trading securities	$	(2,437)	$	(8,530)	$	(1,566)	$	(28,664)

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

The following tables presents AFS securities by major security type at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Amortized Cost (1)		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Non-MBS:
U.S. Treasury obligations	$	3,525,273	$	—	$	6,802	$	(6,382)	$	3,525,693
GSE and TVA obligations	968,486		—		22,145		(3,248)		987,383
State or local agency obligations	184,205		—		—		(24,160)		160,045
Total non-MBS	$	4,677,964	$	—	$	28,947	$	(33,790)	$	4,673,121
MBS:
U.S. obligations single-family	$	1,367,053	$	—	$	—	$	(25,135)	$	1,341,918
GSE single-family	2,016,718		—		—		(70,747)		1,945,971
GSE multifamily	5,578,156		—		6,501		(22,961)		5,561,696
Private label	136,309		(11,572)		6,902		(4,782)		126,857
Total MBS	$	9,098,236	$	(11,572)	$	13,403	$	(123,625)	$	8,976,442
Total AFS securities	$	13,776,200	$	(11,572)	$	42,350	$	(157,415)	$	13,649,563

	December 31, 2022
(in thousands)	Amortized Cost (1)		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Non-MBS:
U.S. Treasury obligations	$	5,246,937	$	—	$	3,963	$	(18,407)	$	5,232,493
GSE and TVA obligations	1,111,674		—		16,879		(2,810)		1,125,743
State or local agency obligations	184,310		—		21		(14,068)		170,263
Total non-MBS	$	6,542,921	$	—	$	20,863	$	(35,285)	$	6,528,499
MBS:
U.S. obligations single-family	$	490,952	$	—	$	1,999	$	(9,969)	$	482,982
GSE single-family	1,925,950		—		5,852		(50,765)		1,881,037
GSE multifamily	3,164,964		—		1,364		(10,557)		3,155,771
Private label	140,222		(8,532)		12,443		(1,862)		142,271
Total MBS	$	5,722,088	$	(8,532)	$	21,658	$	(73,153)	$	5,662,061
Total AFS securities	$	12,265,009	$	(8,532)	$	42,521	$	(108,438)	$	12,190,560

Notes:

(1) Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]

The following tables summarize the AFS securities with gross unrealized losses as of September 30, 2023 and December 31, 2022. The gross unrealized losses are aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position.

	September 30, 2023
	Less than 12 Months				Greater than 12 Months				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Non-MBS:
U.S. Treasury obligations	$	136,123	$	(85)	$	206,656	$	(6,297)	$	342,779	$	(6,382)
GSE and TVA obligations	18,680		(169)		31,775		(3,079)		50,455		(3,248)
State or local agency obligations	13,092		(783)		146,854		(23,377)		159,946		(24,160)
Total non-MBS	$	167,895	$	(1,037)	$	385,285	$	(32,753)	$	553,180	$	(33,790)
MBS:
U.S. obligations single-family	$	869,548	$	(11,990)	$	297,370	$	(13,145)	$	1,166,918	$	(25,135)
GSE single-family	531,341		(8,719)		1,369,493		(62,028)		1,900,834		(70,747)
GSE multifamily	2,235,242		(14,446)		1,962,982		(8,515)		4,198,224		(22,961)
Private label	27,129		(894)		26,759		(3,888)		53,888		(4,782)
Total MBS	$	3,663,260	$	(36,049)	$	3,656,604	$	(87,576)	$	7,319,864	$	(123,625)
Total	$	3,831,155	$	(37,086)	$	4,041,889	$	(120,329)	$	7,873,044	$	(157,415)

	December 31, 2022
	Less than 12 Months				Greater than 12 Months				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Non-MBS:
U.S. Treasury obligations	$	2,460,913	$	(8,532)	$	388,509	$	(9,875)	$	2,849,422	$	(18,407)
GSE and TVA obligations	39,276		(2,810)		—		—		39,276		(2,810)
State or local agency obligations	160,372		(14,068)		—		—		160,372		(14,068)
Total non-MBS	$	2,660,561	$	(25,410)	$	388,509	$	(9,875)	$	3,049,070	$	(35,285)
MBS:
U.S. obligations single-family	$	315,111	$	(9,511)	$	15,293	$	(458)	$	330,404	$	(9,969)
GSE single-family	1,406,666		(33,614)		146,908		(17,151)		1,553,574		(50,765)
GSE multifamily	2,310,965		(6,738)		548,201		(3,819)		2,859,166		(10,557)
Private label	34,918		(1,682)		2,357		(180)		37,275		(1,862)
Total MBS	$	4,067,660	$	(51,545)	$	712,759	$	(21,608)	$	4,780,419	$	(73,153)
Total	$	6,728,221	$	(76,955)	$	1,101,268	$	(31,483)	$	7,829,489	$	(108,438)

Proceeds from Sales and Gross Gains and Losses on AFS Securities

The following table provides a summary of proceeds, gross gains and losses on sales of AFS securities for the three and nine months ended September 30, 2023.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Proceeds from sale of AFS securities	$	—	$	300,409	$	798,200	$	476,816
Gross gains on AFS securities	$	—	$	188	$	489	$	415
Gross losses on AFS securities	—		—		—		—
Net realized gains(losses) from sale of AFS securities	$	—	$	188	$	489	$	415

Investments Classified by Contractual Maturity Date [Table Text Block]

The amortized cost and fair value of AFS securities by contractual maturity as of September 30, 2023 and December 31, 2022 are presented below. Expected maturities of some securities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees. MBS are not presented by contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

(in thousands)	September 30, 2023				December 31, 2022
Year of Maturity	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Non-MBS:
Due in one year or less	$	237,857	$	237,051	$	1,566,430	$	1,560,311
Due after one year through five years	3,646,136		3,656,096		2,629,759		2,632,374
Due after five years through ten years	661,012		667,111		2,204,799		2,206,358
Due after ten years	132,959		112,863		141,933		129,456
Total non-MBS	4,677,964		4,673,121		6,542,921		6,528,499
MBS	9,098,236		8,976,442		5,722,088		5,662,061
Total AFS securities	$	13,776,200	$	13,649,563	$	12,265,009	$	12,190,560

HTM securities are not presented by contractual maturity because they consisted entirely of MBS, whose actual maturities will likely differ from their contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment fees.

Debt Securities, Held-to-maturity [Table Text Block]

The following tables presents HTM securities by major security type at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Amortized Cost (1)		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
MBS:
U.S. obligations single-family	$	542,363	$	108	$	(15,253)	$	527,218
GSE single-family	399,294		40		(76,087)		323,247
GSE multifamily	258,912		—		(14,857)		244,055
Private label	46,798		—		(3,189)		43,609
Total MBS	$	1,247,367	$	148	$	(109,386)	$	1,138,129
Total HTM securities	$	1,247,367	$	148	$	(109,386)	$	1,138,129

	December 31, 2022
(in thousands)	Amortized Cost (1)		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
MBS:
U.S. obligations single-family	$	162,366	$	155	$	(5,352)	$	157,169
GSE single-family	435,129		74		(63,200)		372,003
GSE multifamily	305,306		—		(10,248)		295,058
Private label	53,670		—		(3,618)		50,052
Total MBS	$	956,471	$	229	$	(82,418)	$	874,282
Total HTM securities	$	956,471	$	229	$	(82,418)	$	874,282

Note:

(1) Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

Schedule of Interest Rate Payment Terms For Investments [Table Text Block]

The following table details interest payment terms at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Amortized cost of AFS non-MBS:
Fixed-rate	$	4,677,964	$	6,542,921
Variable-rate	—		—
Total non-MBS	$	4,677,964	$	6,542,921
Amortized cost of AFS MBS:
Fixed-rate	$	3,065,602	$	1,069,749
Variable-rate	6,032,634		4,652,339
Total MBS	$	9,098,236	$	5,722,088
Total amortized cost of AFS securities	$	13,776,200	$	12,265,009

The following table details interest rate payment terms at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Amortized cost of HTM MBS:
Fixed-rate	$	1,132,968	$	824,791
Variable-rate	114,399		131,680
Total MBS	$	1,247,367	$	956,471
Total HTM securities	$	1,247,367	$	956,471

Debt Securities, Available-for-sale, Allowance for Credit Loss [Table Text Block]

The following table presents a rollforward of the ACL on AFS securities for the three and nine months ended September 30, 2023 and 2022.

	Private label MBS
	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	10,006	$	5,033	$	8,532	$	2,378
Increases (decreases) for securities in which a previous ACL or OTTI was recorded	1,566		2,487		3,040		5,142
Balance, end of period	$	11,572	$	7,520	$	11,572	$	7,520

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Advances (Tables)

9 Months Ended

Sep. 30, 2023

Advances [Abstract]

Schedule of Advances Classified by Contractual Maturity Date

The following table details the Bank’s advances portfolio by year of redemption and weighted-average interest rate as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023				December 31, 2022
Year of Redemption	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	36,172,201	5.22	%	$	28,672,440	4.28	%
Due after 1 year through 2 years	25,051,644		5.12		21,421,482		4.17
Due after 2 years through 3 years	11,610,152		5.28		13,136,090		4.30
Due after 3 years through 4 years	2,001,152		3.72		4,966,948		4.38
Due after 4 years through 5 years	1,678,407		4.33		865,373		3.37
Thereafter	180,126		3.29		166,538		2.84
Total par value	76,693,682		5.13	%	69,228,871		4.24	%
Deferred prepayment fees	(639)				(940)
Hedging adjustments	(490,883)				(371,695)
Total book value (1)	$	76,202,160			$	68,856,236

The following table summarizes advances by the earlier of year of redemption or next call date as of September 30, 2023 and December 31, 2022.

	Year of Redemption or Next Call Date
(in thousands)	September 30, 2023		December 31, 2022
Due in 1 year or less	$	36,552,201	$	28,962,440
Due after 1 year through 2 years	25,039,144		21,131,482
Due after 2 years through 3 years	11,242,652		13,136,090
Due after 3 years through 4 years	2,001,152		4,966,948
Due after 4 years through 5 years	1,678,407		865,373
Thereafter	180,126		166,538
Total par value	$	76,693,682	$	69,228,871

The following table details interest rate payment terms by year of redemption for advances as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate – overnight	$	1,373,249	$	1,792,810
Fixed-rate – term:
Due in 1 year or less	14,499,885		21,547,006
Thereafter	14,103,381		7,429,914
Total fixed-rate	29,976,515		30,769,730
Variable-rate:
Due in 1 year or less	20,299,067		5,332,624
Thereafter	26,418,100		33,126,517
Total variable-rate	46,717,167		38,459,141
Total par value	$	76,693,682	$	69,228,871

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Mortgage Loans Held for Portfolio (Tables)

9 Months Ended

Sep. 30, 2023

Receivables [Abstract]

Schedule of Mortgage Loans Held for Portfolio

The following table presents balances as of September 30, 2023 and December 31, 2022 for mortgage loans held for portfolio.

(in thousands)	September 30, 2023		December 31, 2022
Fixed-rate long-term single-family mortgages (1)	$	4,485,907	$	4,388,461
Fixed-rate medium-term single-family mortgages (1)	122,402		140,270
Total par value	4,608,309		4,528,731
Premiums	69,559		73,703
Discounts	(11,607)		(10,224)
Hedging adjustments	617		1,918
Total mortgage loans held for portfolio (2)	$	4,666,878	$	4,594,128
Allowance for credit losses on mortgage loans	(2,971)		(3,240)
Mortgage loans held for portfolio, net	$	4,663,907	$	4,590,888

Note:

(1) Long-term is defined as greater than 15 years. Medium-term is defined as a term of 15 years or less.

(2) Amounts exclude accrued interest receivable of $23.8 million at September 30, 2023 and $22.5 million at December 31, 2022.

The following table details the par value of mortgage loans held for portfolio outstanding categorized by type as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Conventional loans	$	4,502,487	$	4,415,876
Government-guaranteed/insured loans	105,822		112,855
Total par value	$	4,608,309	$	4,528,731

Financing Receivable Credit Quality Indicators [Table Text Block]

Credit Quality Indicator for Conventional Mortgage Loans. The following table presents the payment status for conventional mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(in thousands)	Origination Year
Payment Status, at amortized cost (1)	Prior to 2019		2019 to 2023		Total
Past due 30-59 days	$	21,655	$	25,122	$	46,777
Past due 60-89 days	6,661		6,507		13,168
Past due 90 days or more	8,647		9,116		17,763
Total past due loans	$	36,963	$	40,745	$	77,708
Current loans	1,177,602		3,303,457		4,481,059
Total conventional loans	$	1,214,565	$	3,344,202	$	4,558,767
	December 31, 2022
	Origination Year
Payment Status, at amortized cost (1)	Prior to 2018		2018 to 2022		Total
Past due 30-59 days	$	13,369	$	19,806	$	33,175
Past due 60-89 days	4,100		6,321		10,421
Past due 90 days or more	8,216		9,856		18,072
Total past due loans	$	25,685	$	35,983	$	61,668
Current loans	1,109,321		3,307,745		4,417,066
Total conventional loans	$	1,135,006	$	3,343,728	$	4,478,734

Note:

(1) The amortized cost at September 30, 2023 and December 31, 2022 excludes accrued interest receivable.

Other Delinquency Statistics. The following table presents the delinquency statistics for the Bank’s mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	8,974		$	947		$	9,921
Serious delinquency rate (3)	0.4		%	1.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	1,707		$	1,707
Loans on nonaccrual status	$	20,997		$	—		$	20,997
	December 31, 2022
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	7,873		$	1,352		$	9,225
Serious delinquency rate (3)	0.4		%	2.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	3,182		$	3,182
Loans on nonaccrual status	$	20,950		$	—		$	20,950

Note:

(1) Amounts presented at amortized cost.

(2) Includes loans where the decision of foreclosure or similar alternative such as pursuit of deed-in-lieu has been reported. Loans in process of foreclosure are included in past due or current loans dependent on their delinquency status.

(3) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the total loan portfolio class.

Financing Receivable, Past Due [Table Text Block]

The following table presents the delinquency statistics for the Bank’s mortgage loans at September 30, 2023 and December 31, 2022.

	September 30, 2023
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	8,974		$	947		$	9,921
Serious delinquency rate (3)	0.4		%	1.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	1,707		$	1,707
Loans on nonaccrual status	$	20,997		$	—		$	20,997
	December 31, 2022
(dollars in thousands) (1)	Conventional MPF Loans			Government-Guaranteed or Insured Loans			Total
In process of foreclosures, included above (2)	$	7,873		$	1,352		$	9,225
Serious delinquency rate (3)	0.4		%	2.9		%	0.5		%
Past due 90 days or more still accruing interest	$	—		$	3,182		$	3,182
Loans on nonaccrual status	$	20,950		$	—		$	20,950

Note:

(1) Amounts presented at amortized cost.

(2) Includes loans where the decision of foreclosure or similar alternative such as pursuit of deed-in-lieu has been reported. Loans in process of foreclosure are included in past due or current loans dependent on their delinquency status.

(3) Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the total loan portfolio class.

Financing Receivable, Allowance for Credit Loss [Table Text Block]

Conventional MPF - Rollforward of ACL

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	3,256	$	3,499	$	3,240	$	3,412
(Charge-offs) Recoveries, net (1)	(21)		99		9		326
Provision (reversal) for credit losses	(264)		33		(278)		(107)
Balance, end of period	$	2,971	$	3,631	$	2,971	$	3,631

Note:

(1) Net charge-offs that the Bank does not expect to recover through CE receivable.

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Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following tables summarize the notional amount and fair value of derivative instruments and total derivatives assets and liabilities. Total derivative assets and liabilities include the effect of netting adjustments and cash collateral. For purposes of this disclosure, the derivative values include the fair value of derivatives and the related accrued interest.

	September 30, 2023
(in thousands)	Notional Amount of Derivatives		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments:
Interest rate swaps	$	84,830,852	$	309,440	$	941,436
Derivatives not designated as hedging instruments:
Interest rate swaps	$	2,482,690	$	2,222	$	24,786
Interest rate caps or floors	1,145,000		6,218		—
Mortgage delivery commitments	24,854		7		120
Total derivatives not designated as hedging instruments:	$	3,652,544	$	8,447	$	24,906
Total derivatives before netting and collateral adjustments	$	88,483,396	$	317,887	$	966,342
Netting adjustments and cash collateral (1)			107,743		(955,918)
Derivative assets and derivative liabilities as reported on the Statement of Condition			$	425,630	$	10,424

	December 31, 2022
(in thousands)	Notional Amount of Derivatives		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments:
Interest rate swaps	$	69,039,626	$	53,340	$	985,134
Derivatives not designated as hedging instruments:
Interest rate swaps	$	2,176,879	$	2,112	$	24,457
Interest rate caps or floors	975,000		5,164		—
Mortgage delivery commitments	10,287		10		41
Total derivatives not designated as hedging instruments:	$	3,162,166	$	7,286	$	24,498
Total derivatives before netting and collateral adjustments	$	72,201,792	$	60,626	$	1,009,632
Netting adjustments and cash collateral (1)			168,370		(996,194)
Derivative assets and derivative liabilities as reported on the Statement of   Condition			$	228,996	$	13,438

Note:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022.

Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]

The following table presents, by type of hedged item, the gains (losses) on derivatives and the related hedged items in fair value hedging relationships, which also includes amortization of basis adjustments related to hedged items in discontinued fair value hedge relationships, and the impact of those derivatives on the Bank’s net interest income. Also included is the amortization of basis adjustments related to mortgage delivery commitments, which are characterized as derivatives, but are not designated in fair value hedge relationships.

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2023
Hedged item type:
Advances	$	36,853	$	(36,808)	$	91,203	$	91,248	$	1,071,029
AFS securities	138,160		(138,366)		47,439		47,233		190,518
Mortgage loans held for portfolio	—		(119)		—		(119)		37,516
Consolidated obligations – discount notes	4,507		(2,215)		(4,712)		(2,420)		(220,233)
Consolidated obligations – bonds	53,846		(54,243)		(179,861)		(180,258)		(1,079,869)
Total	$	233,366	$	(231,751)	$	(45,931)	$	(44,316)
Nine months ended September 30, 2023
Hedged item type:
Advances	$	119,382	$	(119,191)	$	225,959	$	226,150	$	3,120,857
AFS securities	100,815		(100,467)		138,872		139,220		516,045
Mortgage loans held for portfolio	—		(423)		—		(423)		108,824
Consolidated obligations – discount notes	3,573		(5,584)		(6,778)		(8,789)		(943,590)
Consolidated obligations – bonds	66,758		(67,189)		(450,544)		(450,975)		(2,778,910)
Total	$	290,528	$	(292,854)	$	(92,491)	$	(94,817)

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2022
Hedged item type:
Advances	$	169,040	$	(169,040)	$	7,543	$	7,543	$	271,015
AFS securities	205,163		(203,981)		13,895		15,077		79,004
Mortgage loans held for portfolio	—		(385)		—		(385)		34,145
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(142,549)
Consolidated obligations – bonds	(423,483)		424,114		(20,976)		(20,345)		(194,399)
Total	$	(51,007)	$	52,486	$	2,390	$	3,869
Nine months ended September 30, 2022
Hedged item type:
Advances	$	426,080	$	(426,158)	$	(41,764)	$	(41,842)	$	382,012
AFS securities	573,187		(570,087)		(5,437)		(2,337)		144,726
Mortgage loans held for portfolio	—		(1,237)		—		(1,237)		99,890
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(181,711)
Consolidated obligations – bonds	(1,023,493)		1,024,111		31,147		31,765		(318,851)
	$	(25,953)	$	28,407	$	(14,126)	$	(11,672)

Schedule Of Derivative Instruments By Type Gain Loss In Statement Of Financial Performance

The following table presents the cumulative amount of fair value hedging adjustments and the related carrying amount of the hedged items.

(in thousands)	September 30, 2023
Hedged item type	Carrying Amount of Hedged Assets/Liabilities(1)		Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of the Hedged Assets/Liabilities		Fair Value Hedging Adjustments for Discontinued Hedging Relationships		Total Amount of Fair Value Hedging Adjustments
Advances	$	18,085,427	$	(490,190)	$	(693)	$	(490,883)
AFS securities	6,373,108		(614,186)		767		(613,419)
Consolidated obligations – discount notes	2,575,584		(1,473)		—		(1,473)
Consolidated obligations – bonds	55,439,243		(1,005,089)		—		(1,005,089)

(in thousands)	December 31, 2022
Hedged item type	Carrying Amount of Hedged Assets/Liabilities (1)		Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of the Hedged Assets/Liabilities		Fair Value Hedging Adjustments for Discontinued Hedging Relationships		Total Amount of Fair Value Hedging Adjustments
Advances	$	9,516,520	$	(370,776)	$	(918)	$	(371,694)
AFS securities	6,265,480		(513,825)		873		(512,952)
Consolidated obligations – discounted notes	17,481,373		(7,057)		—		(7,057)
Consolidated obligations – bonds	33,603,677		(1,072,289)		10		(1,072,279)

Note:

(1) Includes carrying value of hedged items in current fair value hedging relationships.

Derivatives Not Designated as Hedging Instruments

The following table presents net gains (losses) related to derivatives not designated as hedging instruments in noninterest income.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Derivatives not designated as hedging instruments:
Economic hedges:
Interest rate swaps	$	5,913	$	7,953	$	19,717	$	15,795
Interest rate caps or floors	(1,273)		1,338		(2,230)		3,779
Net interest settlements	3,941		(2,137)		5,850		(1,070)
To Be Announced (TBA)	—		—		—		74
Mortgage delivery commitments	(731)		(427)		(856)		(2,753)
Other	—		—		1		1
Total net gains (losses) related to derivatives not designated as hedging instruments	$	7,850	$	6,727	$	22,482	$	15,826
Other - price alignment amount on cleared derivatives (1)	(580)		(79)		(1,266)		(417)
Net gains (losses) on derivatives	$	7,270	$	6,648	$	21,216	$	15,409

Notes:

(1) This amount is for derivatives for which variation margin is characterized as a daily settled contract.

Offsetting Assets

The following tables present separately the fair value of derivative instruments meeting or not meeting netting requirements. Gross recognized amounts do not include the related collateral received from or pledged to counterparties. Net amounts reflect the adjustments of collateral received from or pledged to counterparties.

September 30, 2023
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	311,792	$	(302,630)	$	9,162	$	7	$	9,169
Cleared	6,088		410,373		416,461		—		416,461
Total	$	317,880	$	107,743	$	425,623	$	7	$	425,630
Derivative Liabilities
Uncleared	$	951,839	$	(949,860)	$	1,979	$	120	$	2,099
Cleared	14,383		(6,058)		8,325		—		8,325
Total	$	966,222	$	(955,918)	$	10,304	$	120	$	10,424

December 31, 2022
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	43,901	$	(41,679)	$	2,222	$	10	$	2,232
Cleared	16,715		210,049		$	226,764	—		226,764
Total Derivative Assets	$	60,616	$	168,370	$	228,986	$	10	$	228,996
Derivative Liabilities
Uncleared	$	1,003,917	$	(992,167)	$	11,750	$	41	$	11,791
Cleared	5,674		(4,027)		1,647		—		1,647
Total Derivative Liabilities	$	1,009,591	$	(996,194)	$	13,397	$	41	13,438

Note:

(1) Represents derivatives that are not subject to an enforceable netting agreement (e.g., mortgage delivery commitments).

Offsetting Liabilities

The following tables present separately the fair value of derivative instruments meeting or not meeting netting requirements. Gross recognized amounts do not include the related collateral received from or pledged to counterparties. Net amounts reflect the adjustments of collateral received from or pledged to counterparties.

September 30, 2023
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	311,792	$	(302,630)	$	9,162	$	7	$	9,169
Cleared	6,088		410,373		416,461		—		416,461
Total	$	317,880	$	107,743	$	425,623	$	7	$	425,630
Derivative Liabilities
Uncleared	$	951,839	$	(949,860)	$	1,979	$	120	$	2,099
Cleared	14,383		(6,058)		8,325		—		8,325
Total	$	966,222	$	(955,918)	$	10,304	$	120	$	10,424

December 31, 2022
	Derivative Instruments Meeting Netting Requirements
(in thousands)	Gross Recognized Amount		Gross Amounts of Netting Adjustments and Cash Collateral		Net amounts after netting adjustments and cash collateral		Derivative Instruments Not Meeting Netting Requirements (1)		Total Derivative Assets and Total Derivative Liabilities
Derivative Assets
Uncleared	$	43,901	$	(41,679)	$	2,222	$	10	$	2,232
Cleared	16,715		210,049		$	226,764	—		226,764
Total Derivative Assets	$	60,616	$	168,370	$	228,986	$	10	$	228,996
Derivative Liabilities
Uncleared	$	1,003,917	$	(992,167)	$	11,750	$	41	$	11,791
Cleared	5,674		(4,027)		1,647		—		1,647
Total Derivative Liabilities	$	1,009,591	$	(996,194)	$	13,397	$	41	13,438

Note:

(1) Represents derivatives that are not subject to an enforceable netting agreement (e.g., mortgage delivery commitments).

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Consolidated Obligations (Tables)

9 Months Ended

Sep. 30, 2023

Schedule of Short-term and Long-term Debt [Line Items]

Schedule of Maturities of Debt

The following table presents a summary of the Bank’s consolidated obligation bonds outstanding by year of contractual maturity and weighted-average interest rate at September 30, 2023 and December 31, 2022.

	September 30, 2023				December 31, 2022
(dollars in thousands) Year of Contractual Maturity	Amount		Weighted Average Interest Rate		Amount		Weighted Average Interest Rate
Due in 1 year or less	$	57,480,770	4.79	%	$	30,747,975	3.72	%
Due after 1 year through 2 years	14,447,865		4.26		11,491,385		3.09
Due after 2 years through 3 years	6,557,100		2.20		3,263,725		2.16
Due after 3 years through 4 years	3,879,200		2.22		6,557,800		1.25
Due after 4 years through 5 years	2,204,250		3.61		1,850,300		3.09
Thereafter	3,260,210		2.68		3,604,110		2.37
Total par value	$	87,829,395	4.29	%	$	57,515,295	3.12	%

The following table presents consolidated obligation bonds outstanding by the earlier of contractual maturity or next call date as of September 30, 2023 and December 31, 2022.

(in thousands) Year of Contractual Maturity or Next Call Date	September 30, 2023		December 31, 2022
Due in 1 year or less	$	72,520,270	$	47,036,975
Due after 1 year through 2 years	10,188,365		6,573,385
Due after 2 years through 3 years	1,997,100		1,049,725
Due after 3 years through 4 years	617,200		1,035,800
Due after 4 years through 5 years	1,397,250		392,300
Thereafter	1,109,210		1,427,110
Total par value	$	87,829,395	$	57,515,295

Schedule of Long-term Debt by Call Feature

The following table details interest rate payment terms for the Bank's consolidated obligation bonds as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Par value of consolidated bonds:
Fixed-rate	$	64,145,995	$	39,983,295
Step-up	2,083,000		3,124,000
Floating-rate	21,600,400		14,408,000
Total par value	$	87,829,395	$	57,515,295
Bond premiums	$	38,861	$	47,515
Bond discounts	(14,546)		(14,069)
Concession fees	(6,073)		(5,008)
Hedging adjustments	(1,005,089)		(1,072,278)
Total book value	$	86,842,548	$	56,471,455

The following table presents the Bank’s consolidated obligation bonds outstanding between noncallable and callable as of September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Noncallable	$	47,274,895	$	35,816,795
Callable	40,554,500		21,698,500
Total par value	$	87,829,395	$	57,515,295

Schedule of Short-term Debt

The following table details the Bank’s consolidated obligation discount notes as of September 30, 2023 and December 31, 2022.

(dollars in thousands)	September 30, 2023			December 31, 2022
Book value	$	12,520,373		$	33,745,478
Par value	12,625,033			34,007,058
Weighted average interest rate (1)	5.31		%	4.25		%

Note:

(1) Represents yield to maturity excluding concession fees and hedging adjustments.

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Capital (Tables)

9 Months Ended

Sep. 30, 2023

Banking Regulation, Total Capital [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following table demonstrates the Bank’s compliance with the regulatory capital requirements at September 30, 2023 and December 31, 2022.

	September 30, 2023						December 31, 2022
(dollars in thousands)	Required			Actual			Required			Actual
Regulatory capital requirements:
RBC	$	747,464		$	5,649,663		$	441,078		$	4,992,405
Total capital-to-asset ratio	4.0		%	5.3		%	4.0		%	5.2		%
Total regulatory capital	4,277,496			5,649,663			3,845,647			4,992,405
Leverage ratio	5.0		%	7.9		%	5.0		%	7.8		%
Leverage capital	5,346,870			8,474,495			4,807,058			7,488,607

Schedule of Dividends Paid [Table Text Block]

Dividends paid through the third quarter of 2023 and 2022 are presented in the table below.

	Dividend - Annual Yield
	2023				2022
	Membership		Activity		Membership		Activity
February	4.00	%	7.95	%	1.25	%	5.25	%
April	5.00	%	7.95	%	1.25	%	5.25	%
July	5.25	%	7.95	%	2.25	%	6.25	%

Schedule of Mandatorily Redeemable Capital Stock by Maturity Date

The following table provides the related dollar amounts for activities recorded in mandatorily redeemable capital stock during the nine months ended September 30, 2023 and 2022.

	Nine months ended September 30,
(in thousands)	2023		2022
Balance, beginning of the period	$	27,763	$	22,457
Capital stock subject to mandatory redemption reclassified from capital	13,681		5,810
Redemption/repurchase of mandatorily redeemable capital stock	(13,448)		(227)
Balance, end of the period	$	27,996	$	28,040

The following table shows the amount of mandatorily redeemable capital stock by contractual year of redemption at September 30, 2023 and December 31, 2022.

(in thousands)	September 30, 2023		December 31, 2022
Due in 1 year or less	$	—	$	20,000
Due after 1 year through 2 years	40		—
Due after 2 years through 3 years	486		34
Due after 3 years through 4 years	4,787		527
Due after 4 years through 5 years	1,206		5,571
Past contractual redemption date due to activity outstanding	21,477		1,631
Total	$	27,996	$	27,763

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in AOCI for the three and nine months ended September 30, 2023 and 2022.

(in thousands)	Net Unrealized Gains(Losses) on AFS		Pension and Post-Retirement Plans		Total
June 30, 2022	$	9,380	$	(4,446)	$	4,934
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(71,853)		—		(71,853)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(188)		—		(188)
Pension and post-retirement	—		189		189
September 30, 2022	$	(62,661)	$	(4,257)	$	(66,918)
June 30, 2023	$	(49,722)	$	(627)	$	(50,349)
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(65,343)		—		(65,343)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	—		—		—
Pension and post-retirement	—		(8)		(8)
September 30, 2023	$	(115,065)	$	(635)	$	(115,700)
December 31, 2021	$	115,015	$	(4,824)	$	110,191
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(177,261)		—		(177,261)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(415)		—		(415)
Pension and post-retirement	—		567		567
September 30, 2022	$	(62,661)	$	(4,257)	$	(66,918)
December 31, 2022	$	(65,917)	$	(610)	$	(66,527)
Other comprehensive income (loss) before reclassification:
Net unrealized gains (losses)	(48,659)		—		(48,659)
Reclassifications from OCI to net income:
Reclassification adjustment for net gains included in net income	(489)		—		(489)
Pension and post-retirement	—		(25)		(25)
September 30, 2023	$	(115,065)	$	(635)	$	(115,700)

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Transactions with Related Parties (Tables)

9 Months Ended

Sep. 30, 2023

Related Party Transaction [Line Items]

Related Party Transactions, by Balance Sheet Grouping

The following table includes significant outstanding related party member-activity balances.

(in thousands)	September 30, 2023		December 31, 2022
Advances(1)	$	43,382,124	$	42,401,975
Letters of credit (2)	21,611,992		16,928,206
MPF loans	209,693		263,795
Deposits	40,655		32,335
Capital stock	1,971,571		1,891,978

Note:

(1) Par balances

(2) Letters of credit are off-balance sheet commitments.

Related Party Transactions, Income Statement

The following table summarizes the effects on the Statements of Income corresponding to the related party member balances above. Amounts related to interest expense on deposits were immaterial for the periods presented.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Interest income on advances (1)	$	601,408	$	181,760	$	1,824,881	$	283,054
Interest income on MPF loans	2,628		3,318		8,216		7,431
Letters of credit fees	8,067		90		19,127		4,694

Note:

(1) Interest income on advances includes contractual interest income and prepayment fees. The effect of derivative activities is not included.

FHLBank of Chicago [Member]

Related Party Transaction [Line Items]

Schedule of Related Party Transactions, Mortgage Loans

The following table summarizes the effect of the MPF activities with FHLBank of Chicago.

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Servicing fee expense	$	952	$	890	$	2,833	$	2,674

(in thousands)	September 30, 2023		December 31, 2022
Interest-bearing deposits maintained with FHLBank of Chicago	$	5,483	$	5,119

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Estimated Fair Values (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The carrying value and estimated fair value of the Bank’s financial instruments at September 30, 2023 and December 31, 2022 are presented in the table below.

Fair Value Summary Table
	September 30, 2023
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	20,328	$	20,328	$	—	$	—	$	—	$	20,328
Interest-bearing deposits	3,040,744		3,040,744		—		—		—		3,040,744
Securities purchased under agreement to resell (2)	3,380,000		—		3,379,996		—		—		3,379,996
Federal funds sold	3,536,000		—		3,536,000		—		—		3,536,000
Trading securities	212,634		—		212,634		—		—		212,634
AFS securities	13,649,563		—		13,522,705		126,857		—		13,649,562
HTM securities	1,247,367		—		1,094,520		43,609		—		1,138,129
Advances	76,202,160		—		76,073,438		—		—		76,073,438
Mortgage loans held for portfolio, net	4,663,907		—		3,941,940		—		—		3,941,940
BOB loans, net	25,354		—		—		25,354		—		25,354
Accrued interest receivable	498,984		—		498,984		—		—		498,984
Derivative assets	425,630		—		317,887		—		107,743		425,630
Liabilities:
Deposits	$	855,987	$	—	$	855,987	$	—	$	—	$	855,987
Discount notes	12,520,373		—		12,515,800		—		—		12,515,800
Bonds	86,842,548		—		86,048,254		—		—		86,048,254
Mandatorily redeemable capital stock(3)	27,996		28,597		—		—		—		28,597
Accrued interest payable(3)	807,851		—		807,250		—		—		807,250
Derivative liabilities	10,424		—		966,342		—		(955,918)		10,424

	December 31, 2022
(in thousands)	Carrying Value		Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral (1)		Estimated Fair Value
Assets:
Cash and due from banks	$	13,242	$	13,242	$	—	$	—	$	—	$	13,242
Interest-bearing deposits	2,471,135		2,471,135		—		—		—		2,471,135
Securities purchased under agreement to resell(2)	3,200,000		—		3,200,137		—		—		3,200,137
Federal funds sold	3,050,000		—		3,050,141		—		—		3,050,141
Trading securities	214,008		—		214,008		—		—		214,008
AFS securities	12,190,560		—		12,048,289		142,271		—		12,190,560
HTM securities	956,471		—		824,230		50,052		—		874,282
Advances	68,856,236		—		68,548,367		—		—		68,548,367
Mortgage loans held for portfolio, net	4,590,888		—		4,039,588		—		—		4,039,588
BOB loans, net	22,998		—		—		22,998		—		22,998
Accrued interest receivable	310,081		—		310,081		—		—		310,081
Derivative assets	228,996		—		60,626		—		168,370		228,996
Liabilities:
Deposits	$	553,279	$	—	$	553,279	$	—	$	—	$	553,279
Discount notes	33,745,478		—		33,739,166		—		—		33,739,166
Bonds	56,471,455		—		55,694,094		—		—		55,694,094
Mandatorily redeemable capital stock(3)	27,763		28,321		—		—		—		28,321
Accrued interest payable(3)	287,539		—		286,981		—		—		286,981
Derivative liabilities	13,438		—		1,009,632		—		(996,194)		13,438

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

(2) Based on the fair value of the related collateral held, the securities purchased under agreements to resell were fully collateralized for the periods presented. There were no offsetting liabilities related to these securities at September 30, 2023 and December 31, 2022. These instruments’ maturity term is overnight.

(3) The estimated fair value amount for the mandatorily redeemable capital stock line item includes accrued dividend interest; this amount is excluded from the estimated fair value for the accrued interest payable line item.

Fair Value Measurements

Fair Value Measurements. The following tables present, for each hierarchy level, the Bank’s assets and liabilities that are measured at fair value on a recurring or non-recurring basis on its Statement of Condition at September 30, 2023 and December 31, 2022. The Bank measures certain mortgage loans held for portfolio at fair value when a charge-off is recognized and subsequently when the fair value of collateral less costs to sell is lower than the carrying amount. Real estate owned is measured using fair value when the assets' fair value less costs to sell is lower than the carrying amount.

	September 30, 2023
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	212,634	$	—	$	—	$	212,634
Total trading securities	$	—	$	212,634	$	—	$	—	$	212,634
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	3,525,693	$	—	$	—	$	3,525,693
GSE and TVA obligations	—		987,383		—		—		987,383
State or local agency obligations	—		160,045		—		—		160,045
MBS:
U.S. obligations single-family	—		1,341,918		—		—		1,341,918
GSE single-family	—		1,945,971		—		—		1,945,971
GSE multifamily	—		5,561,696		—		—		5,561,696
Private label	—		—		126,857		—		126,857
Total AFS securities	$	—	$	13,522,706	$	126,857	$	—	$	13,649,563
Derivative assets:
Interest rate related	$	—	$	317,880	$	—	$	107,743	$	425,623
Mortgage delivery commitments	—		7		—		—		7
Total derivative assets	$	—	$	317,887	$	—	$	107,743	$	425,630
Total recurring assets at fair value	$	—	$	14,053,227	$	126,857	$	107,743	$	14,287,827
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	966,222	$	—	$	(955,918)	$	10,304
Mortgage delivery commitments	—		120		—		—		120
Total recurring liabilities at fair value	$	—	$	966,342	$	—	$	(955,918)	$	10,424
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,743	$	—	$	5,743
REO	—		—		290		—		290
Total non-recurring assets at fair value	$	—	$	—	$	6,033	$	—	$	6,033

	December 31, 2022
(in thousands)	Level 1		Level 2		Level 3		Netting Adjustment and Cash Collateral(1)		Total
Recurring fair value measurements - Assets
Trading securities:
Non MBS:
GSE obligations	$	—	$	214,008	$	—	$	—	$	214,008
Total trading securities	$	—	$	214,008	$	—	$	—	$	214,008
AFS securities:
Non MBS:
U.S. Treasury obligations	$	—	$	5,232,493	$	—	$	—	$	5,232,493
GSE and TVA obligations	—		1,125,743		—		—		1,125,743
State or local agency obligations	—		170,263		—		—		170,263
MBS:
U.S. obligations single-family	—		482,982		—		—		482,982
GSE single-family	—		1,881,037		—		—		1,881,037
GSE multifamily	—		3,155,771		—		—		3,155,771
Private label	—		—		142,271		—		142,271
Total AFS securities	$	—	$	12,048,289	$	142,271	$	—	$	12,190,560
Derivative assets:
Interest rate related	$	—	$	60,616	$	—	$	168,370	$	228,986
Mortgage delivery commitments	—		10		—		—		10
Total derivative assets	$	—	$	60,626	$	—	$	168,370	$	228,996
Total recurring assets at fair value	$	—	$	12,322,923	$	142,271	$	168,370	$	12,633,564
Recurring fair value measurements - Liabilities
Derivative liabilities:
Interest rate related	$	—	$	1,009,591	$	—	$	(996,194)	$	13,397
Mortgage delivery commitments	—		41		—		—		41
Total recurring liabilities at fair value	$	—	$	1,009,632	$	—	$	(996,194)	$	13,438
Non-recurring fair value measurements - Assets
Impaired mortgage loans held for portfolio	$	—	$	—	$	5,240	$	—	$	5,240
REO	—		—		403		—		403
Total non-recurring assets at fair value	$	—	$	—	$	5,643	$	—	$	5,643

Notes:

(1) Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral and related accrued interest held or placed by the Bank with the same clearing agent and/or counterparties.

Rollforward of Level 3 Assets and Liabilities

Level 3 Disclosures for all Assets and Liabilities That Are Measured at Fair Value on a Recurring Basis. The following table presents a reconciliation of all assets and liabilities that are measured at fair value on the Statement of Condition using significant unobservable inputs (Level 3) for the nine months ended September 30, 2023 and 2022. For instruments carried at fair value, the Bank reviews the fair value hierarchy classifications each quarter. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in/out at fair value in the quarter in which the changes occur. There were no Level 3 transfers during the first nine months of 2023 or 2022.

	AFS Private Label MBS
	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Balance, beginning of period	$	134,685	$	162,201	$	142,271	$	194,425
Total gains (losses) (realized/unrealized) included in:
(Provision) reversal for credit losses	(1,566)		(2,487)		(3,040)		(5,142)
Accretion of credit losses in interest income	1,660		2,534		4,939		6,955
Net unrealized gains (losses) on AFS in OCI	(4,659)		(5,861)		(8,461)		(17,015)
Settlements:
Settlements	(3,263)		(6,935)		(8,852)		(29,771)
Balance, end of period	$	126,857	$	149,452	$	126,857	$	149,452
Total amount of gains for the periods presented included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at September 30, 2023	$	94	$	(224)	$	1,899	$	1,494
Change in unrealized gains (losses) for the period included in other comprehensive income (loss) for assets held at September 30, 2023	$	(4,659)	$	(5,861)	$	(8,461)	$	(17,015)

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Off-Balance Sheet Commitments

Commitments and Contingencies

The following table presents the Bank's various off-balance sheet commitments which are described in detail below.

(in thousands)	September 30, 2023						December 31, 2022
Notional amount	Expiration Date Within One Year		Expiration Date After One Year		Total		Total
Standby letters of credit outstanding (1) (2)	$	29,816,480	$	—	$	29,816,480	$	22,126,676
Commitments to fund additional advances and BOB loans	1,436		—		1,436		373
Commitments to purchase mortgage loans	24,854		—		24,854		10,287
Unsettled consolidated obligation discount notes, at par	576,000		—		576,000		15,370
Unsettled consolidated obligation bonds, at par	27,000		—		27,000		1,080,000

Notes:

(1) Excludes approved requests to issue future standby letters of credit of $0.9 million at September 30, 2023 and $0.0 million at December 31, 2022.

(2) Letters of credit in the amount of $7.3 billion at September 30, 2023 and $2.2 billion at December 31, 2022, have renewal language that permits the letter of credit to be renewed for an additional period with a maximum renewal period of approximately five years.

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Background Information (Details)	Sep. 30, 2023 Banks
Nature of Operations [Line Items]
Number of Federal Home Loan Banks	11
Minimum
Nature of Operations [Line Items]
Related Party Transaction, Definition Of Related Party, Capital Stock, Percent	10.00%

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Investments Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses - HTM		$ 0	$ 0
Interest-Bearing Deposits and Federal Funds Sold, Percentage Rated Below Triple-B		0.00%
Securities Purchased Under Agreement to Resell, Percentage Rated Below Triple-B		0.00%
Securities Purchased under Agreements to Resell, Allowance for Credit Loss		$ 0	0
TradedNotSettldInvestments	$ 0	187.3
AFS HTM - GSE and Other US Obligations [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Credit Loss		0	0
Interest Bearing Deposits and Federal Funds Sold
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Credit Loss		0	0
State or local agency obligations [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Credit Loss		$ 0	$ 0
Private Label MBS
Financing Receivable, Allowance for Credit Loss [Line Items]
Securities Purchased Under Agreement to Resell, Percentage Rated Above Triple-B		17.30%

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Trading Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Line Items]
Trading securities	$ 212,634	$ 214,008
GSE obligations
Investments, Debt and Equity Securities [Line Items]
Trading securities	$ 212,634	$ 214,008

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Trading Securities (Net Gains (Losses) on Trading Securities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Net unrealized gains (losses) on trading securities held at period-end	$ (2,437)	$ (8,530)	$ (1,566)	$ (28,664)
Net gains (losses) on trading securities	$ (2,437)	$ (8,530)	$ (1,566)	$ (28,664)

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Investments AFS - Schedule of Reconciliation Table (Details) - USD ($)		Sep. 30, 2023		Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	$ 13,776,200,000			$ 12,265,009,000
Balance, beginning of period		11,572,000		$ 10,006,000	8,532,000	$ 7,520,000	$ 5,033,000	$ 2,378,000
Gross Unrealized Gains		42,350,000			42,521,000
Gross Unrealized Losses		(157,415,000)			(108,438,000)
Available-for-Sale - Accrued Interest		54,500,000			37,400,000
Fair Value		$ 13,649,563,000			$ 12,190,560,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable			Accrued interest receivable
GSE obligations
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	$ 968,486,000			$ 1,111,674,000
Balance, beginning of period		0			0
Gross Unrealized Gains		22,145,000			16,879,000
Gross Unrealized Losses		(3,248,000)			(2,810,000)
Fair Value		987,383,000			1,125,743,000
State or local agency obligations [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	184,205,000			184,310,000
Balance, beginning of period		0			0
Gross Unrealized Gains		0			21,000
Gross Unrealized Losses		(24,160,000)			(14,068,000)
Fair Value		160,045,000			170,263,000
Non-MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	4,677,964,000			6,542,921,000
Balance, beginning of period		0			0
Gross Unrealized Gains		28,947,000			20,863,000
Gross Unrealized Losses		(33,790,000)			(35,285,000)
Fair Value		4,673,121,000			6,528,499,000
U.S. obligations single-family
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	1,367,053,000			490,952,000
Balance, beginning of period		0			0
Gross Unrealized Gains		0			1,999,000
Gross Unrealized Losses		(25,135,000)			(9,969,000)
Fair Value		1,341,918,000			482,982,000
Private label MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	136,309,000			140,222,000
Balance, beginning of period		11,572,000			8,532,000
Gross Unrealized Gains		6,902,000			12,443,000
Gross Unrealized Losses		(4,782,000)			(1,862,000)
Fair Value		126,857,000			142,271,000
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	9,098,236,000			5,722,088,000
Balance, beginning of period		11,572,000			8,532,000
Gross Unrealized Gains		13,403,000			21,658,000
Gross Unrealized Losses		(123,625,000)			(73,153,000)
Fair Value		8,976,442,000			5,662,061,000
U.S. Treasury obligations
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,		3,525,273,000	[1]		5,246,937,000
Balance, beginning of period		0			0
Gross Unrealized Gains		6,802,000			3,963,000
Gross Unrealized Losses		(6,382,000)			(18,407,000)
Fair Value		3,525,693,000			5,232,493,000
Single Family [Member] | GSE MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	2,016,718,000			1,925,950,000
Balance, beginning of period		0			0
Gross Unrealized Gains		0			5,852,000
Gross Unrealized Losses		(70,747,000)			(50,765,000)
Fair Value		1,945,971,000			1,881,037,000
Multifamily [Member] | GSE MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	5,578,156,000			3,164,964,000
Balance, beginning of period		0			0
Gross Unrealized Gains		6,501,000			1,364,000
Gross Unrealized Losses		(22,961,000)			(10,557,000)
Fair Value		$ 5,561,696,000			$ 3,155,771,000

[1] Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

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Investments AFS - Unrealized Loss Position Table (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	$ 3,831,155	$ 6,728,221
AFS - Unrealized Losses - Less than 12 months	(37,086)	(76,955)
AFS - Fair Value - 12 months or longer	4,041,889	1,101,268
AFS - Unrealized Losses - 12 months or longer	(120,329)	(31,483)
AFS - Fair Value - Total in Continuous Loss Position	7,873,044	7,829,489
AFS - Unrealized Losses - Total in Continuous Loss Position	(157,415)	(108,438)
GSE obligations
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	18,680	39,276
AFS - Unrealized Losses - Less than 12 months	(169)	(2,810)
AFS - Fair Value - 12 months or longer	31,775	0
AFS - Unrealized Losses - 12 months or longer	(3,079)	0
AFS - Fair Value - Total in Continuous Loss Position	50,455	39,276
AFS - Unrealized Losses - Total in Continuous Loss Position	(3,248)	(2,810)
State or local agency obligations [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	13,092	160,372
AFS - Unrealized Losses - Less than 12 months	(783)	(14,068)
AFS - Fair Value - 12 months or longer	146,854	0
AFS - Unrealized Losses - 12 months or longer	(23,377)	0
AFS - Fair Value - Total in Continuous Loss Position	159,946	160,372
AFS - Unrealized Losses - Total in Continuous Loss Position	(24,160)	(14,068)
Non-MBS [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	167,895	2,660,561
AFS - Unrealized Losses - Less than 12 months	(1,037)	(25,410)
AFS - Fair Value - 12 months or longer	385,285	388,509
AFS - Unrealized Losses - 12 months or longer	(32,753)	(9,875)
AFS - Fair Value - Total in Continuous Loss Position	553,180	3,049,070
AFS - Unrealized Losses - Total in Continuous Loss Position	(33,790)	(35,285)
U.S. obligations single-family
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	869,548	315,111
AFS - Unrealized Losses - Less than 12 months	(11,990)	(9,511)
AFS - Fair Value - 12 months or longer	297,370	15,293
AFS - Unrealized Losses - 12 months or longer	(13,145)	(458)
AFS - Fair Value - Total in Continuous Loss Position	1,166,918	330,404
AFS - Unrealized Losses - Total in Continuous Loss Position	(25,135)	(9,969)
Private label MBS [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	27,129	34,918
AFS - Unrealized Losses - Less than 12 months	(894)	(1,682)
AFS - Fair Value - 12 months or longer	26,759	2,357
AFS - Unrealized Losses - 12 months or longer	(3,888)	(180)
AFS - Fair Value - Total in Continuous Loss Position	53,888	37,275
AFS - Unrealized Losses - Total in Continuous Loss Position	(4,782)	(1,862)
MBS [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	3,663,260	4,067,660
AFS - Unrealized Losses - Less than 12 months	(36,049)	(51,545)
AFS - Fair Value - 12 months or longer	3,656,604	712,759
AFS - Unrealized Losses - 12 months or longer	(87,576)	(21,608)
AFS - Fair Value - Total in Continuous Loss Position	7,319,864	4,780,419
AFS - Unrealized Losses - Total in Continuous Loss Position	(123,625)	(73,153)
U.S. Treasury obligations
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	136,123	2,460,913
AFS - Unrealized Losses - Less than 12 months	(85)	(8,532)
AFS - Fair Value - 12 months or longer	206,656	388,509
AFS - Unrealized Losses - 12 months or longer	(6,297)	(9,875)
AFS - Fair Value - Total in Continuous Loss Position	342,779	2,849,422
AFS - Unrealized Losses - Total in Continuous Loss Position	(6,382)	(18,407)
Single Family [Member] | GSE MBS [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	531,341	1,406,666
AFS - Unrealized Losses - Less than 12 months	(8,719)	(33,614)
AFS - Fair Value - 12 months or longer	1,369,493	146,908
AFS - Unrealized Losses - 12 months or longer	(62,028)	(17,151)
AFS - Fair Value - Total in Continuous Loss Position	1,900,834	1,553,574
AFS - Unrealized Losses - Total in Continuous Loss Position	(70,747)	(50,765)
Multifamily [Member] | GSE MBS [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS - Fair Value - Less than 12 Months	2,235,242	2,310,965
AFS - Unrealized Losses - Less than 12 months	(14,446)	(6,738)
AFS - Fair Value - 12 months or longer	1,962,982	548,201
AFS - Unrealized Losses - 12 months or longer	(8,515)	(3,819)
AFS - Fair Value - Total in Continuous Loss Position	4,198,224	2,859,166
AFS - Unrealized Losses - Total in Continuous Loss Position	$ (22,961)	$ (10,557)

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Investments AFS - Contractual Maturities Table (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Fair Value		$ 13,649,563	$ 12,190,560
AFS Securities - Amortized Cost,	[1]	13,776,200	12,265,009
Non-MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS - Non-MBS - Due in one year or less - Amortized Cost		237,857	1,566,430
AFS - Non-MBS - Due after one year through five years - Amortized Cost		3,646,136	2,629,759
AFS - Non-MBS - Due after five through ten years - Amortized Cost		661,012	2,204,799
AFS - Non-MBS - Due after 10 years - Amortized Cost		132,959	141,933
AFS - Non-MBS - Due in one year or less - Fair Value		237,051	1,560,311
AFS - Non-MBS - Due after one year through five years - Fair Value		3,656,096	2,632,374
AFS - Non-MBS - Due after five through ten years - Fair Value		667,111	2,206,358
AFS - Non-MBS - Due after 10 years - Fair Value		112,863	129,456
Fair Value		4,673,121	6,528,499
AFS Securities - Amortized Cost,	[1]	4,677,964	6,542,921
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value		8,976,442	5,662,061
AFS Securities - Amortized Cost,	[1]	$ 9,098,236	$ 5,722,088

[1] Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

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Investments AFS - Interest Rate Payment Terms Table (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	$ 13,776,200	$ 12,265,009
Non-MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	4,677,964	6,542,921
MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,	[1]	9,098,236	5,722,088
Fixed Interest Rate [Member] | Non-MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,		4,677,964	6,542,921
Fixed Interest Rate [Member] | MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,		3,065,602	1,069,749
Variable interest rate [Member] | Non-MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,		0	0
Variable interest rate [Member] | MBS [Member]
Debt Securities, Available-for-sale [Line Items]
AFS Securities - Amortized Cost,		$ 6,032,634	$ 4,652,339

[1] Includes adjustments made to the cost basis of an investment for accretion, amortization and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $54.5 million at September 30, 2023 and $37.4 million at December 31, 2022.

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Investments, Gain Loss on Sales of AFS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-Sale, Realized Gain	$ 0	$ 188	$ 489	$ 415
Debt Securities, Available-for-Sale, Realized Loss	0	0	0	0
Gain (Loss) on Securities [Line Items]
Proceeds from Sale of Debt Securities, Available-for-Sale	0	300,409	798,200	476,816
Debt Securities, Available-for-Sale, Realized Gain	0	188	489	415
Debt Securities, Available-for-Sale, Realized Loss	0	0	0	0
Net realized (gains) loss from sales of AFS securities	$ 0	$ 188	$ 489	$ 415

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Investments HTM - Securities by Major Security Type Table (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282	[1]	$ 1,247,367		$ 956,471
Gross Unrealized Holding Gains		148		229
Gross Unrealized Holding Losses		(109,386)		(82,418)
HTM securities - fair value		1,138,129		874,282
HTM - Accrued Interest		$ 4,100		$ 2,400
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable		Accrued interest receivable
U.S. obligations single-family
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		$ 542,363	[1]	$ 162,366
Gross Unrealized Holding Gains		108		155
Gross Unrealized Holding Losses		(15,253)		(5,352)
HTM securities - fair value		527,218		157,169
Private label MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		46,798	[1]	53,670
Gross Unrealized Holding Gains		0		0
Gross Unrealized Holding Losses		(3,189)		(3,618)
HTM securities - fair value		43,609		50,052
MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		1,247,367	[1]	956,471
Gross Unrealized Holding Gains		148		229
Gross Unrealized Holding Losses		(109,386)		(82,418)
HTM securities - fair value		1,138,129		874,282
Single Family [Member] | GSE MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		399,294	[1]	435,129
Gross Unrealized Holding Gains		40		74
Gross Unrealized Holding Losses		(76,087)		(63,200)
HTM securities - fair value		323,247		372,003
Multifamily [Member] | GSE MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		258,912	[1]	305,306
Gross Unrealized Holding Gains		0		0
Gross Unrealized Holding Losses		(14,857)		(10,248)
HTM securities - fair value		$ 244,055		$ 295,058

[1] Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

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Investments HTM - Contractual Maturity Table (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282	[1]	$ 1,247,367		$ 956,471
HTM securities		1,138,129		874,282
MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM securities; fair value of $1,138,129 and $874,282		1,247,367	[1]	956,471
HTM securities		$ 1,138,129		$ 874,282

[1] Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

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Investments HTM - Interest Rate Payment Terms (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
HTM - Amortized Cost	[1]	$ 1,247,367		$ 956,471
MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM - Amortized Cost		1,247,367	[1]	956,471
Fixed Interest Rate [Member] | MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM - Amortized Cost		1,132,968		824,791
Variable interest rate [Member] | MBS [Member]
Schedule of Held-to-maturity Securities [Line Items]
HTM - Amortized Cost		$ 114,399		$ 131,680

[1] Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

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Investments AFS - Allowance Rollforward Table (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
AFS - Allowance - beginning	$ 10,006	$ 5,033	$ 8,532	$ 2,378
Increases (decreases) for securities in which a previous ACL or OTTI was recorded	1,566	2,487	3,040	5,142
Balance, end of period	$ 11,572	$ 7,520	$ 11,572	$ 7,520

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Advances (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Federal Home Loan Bank Advances
Total Par Value	$ 76,693,682	$ 69,228,871
Federal Home Loan Bank, Advances, Five Largest Borrowers Amount Outstanding	$ 60,200,000	$ 54,300,000
Number Of Top Advances Borrowers	5	5
Federal Home Loan Bank, Advances, Five Largest Borrowers, Percent of Total	78.50%	78.50%
Federal Home Loan Bank, Advances, Borrowers With Outstanding Loan Balances Greater Than Ten Percent	2	3
Maximum
Federal Home Loan Bank Advances
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate	30 years
Federal Home Loan Bank, Advances, Maturity Period, Variable Rate	10 years

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Advances (Portfolio by Year of Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances [Line Items]
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable	Accrued interest receivable
Federal Home Loan Bank, Advances, Weighted Average Interest Rate, Rolling Year [Abstract]
Due in 1 year or less	5.22%	4.28%
Due after 1 year through 2 years	5.12%	4.17%
Due after 2 years through 3 years	5.28%	4.30%
Due after 3 years through 4 years	3.72%	4.38%
Due after 4 years through 5 years	4.33%	3.37%
Thereafter	3.29%	2.84%
Total par value, Weighted Average Interest Rate	5.13%	4.24%
Federal Home Loan Bank, Advances, Maturity, Rolling Year, Par Value [Abstract]
Due in 1 year or less	$ 36,172,201	$ 28,672,440
Due after 1 year through 2 years	25,051,644	21,421,482
Due after 2 years through 3 years	11,610,152	13,136,090
Due after 3 years through 4 years	2,001,152	4,966,948
Due after 4 years through 5 years	1,678,407	865,373
Thereafter	180,126	166,538
Total Par Value	76,693,682	69,228,871
Deferred prepayment fees	(639)	(940)
Hedging adjustments	(490,883)	(371,695)
Total book value	76,202,160	68,856,236
Federal Home Loan Bank Advances
Federal Home Loan Bank, Advances [Line Items]
Accrued Interest - Advances	$ 406,700	$ 241,800

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Advances (Advances by Year of Contractual Maturity or Next Call Date or Next Convertible Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Advances [Abstract]
Due in 1 year or less	$ 36,552,201	$ 28,962,440
Due after 1 year through 2 years	25,039,144	21,131,482
Due after 2 years through 3 years	11,242,652	13,136,090
Due after 3 years through 4 years	2,001,152	4,966,948
Due after 4 years through 5 years	1,678,407	865,373
Thereafter	180,126	166,538
Total Par Value	$ 76,693,682	$ 69,228,871

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Advances (Interest Rate Payment Terms) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances, Fixed Rate [Abstract]
Fixed rate – overnight	$ 1,373,249	$ 1,792,810
Due in 1 year or less	14,499,885	21,547,006
Thereafter	14,103,381	7,429,914
Total Fixed Rate	29,976,515	30,769,730
Federal Home Loan Bank, Advances, Floating Rate [Abstract]
Due in 1 year or less	20,299,067	5,332,624
Thereafter	26,418,100	33,126,517
Total Variable Rate	46,717,167	38,459,141
Total Par Value	$ 76,693,682	$ 69,228,871

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Mortgage Loans Held for Portfolio (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Mortgage Loans held for portfolio [Line Items]
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable		Accrued interest receivable
Fixed-rate single-family mortgages		$ 4,608,309		$ 4,528,731
Government-guaranteed/insured loans
Mortgage Loans held for portfolio [Line Items]
Fixed-rate single-family mortgages		105,822		112,855
Conventional MPF Loan [Member]
Mortgage Loans held for portfolio [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	[1]	4,558,767		4,478,734
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	[1]	1,214,565		1,135,006
Fixed-rate single-family mortgages		4,502,487		4,415,876
Mortgage loans held for portfolio, net
Mortgage Loans held for portfolio [Line Items]
Premiums		69,559		73,703
Discounts		(11,607)		(10,224)
Hedging adjustments		617		1,918
Loans and Leases Receivable, Net of Deferred Income, Total	[2]	4,666,878		4,594,128
Allowance for credit losses on mortgage loans		(2,971)		(3,240)
Mortgage loans held for portfolio, net		4,663,907		4,590,888
Accrued Interest - Mortgage loans held for portfolio		23,800		22,500
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		4,608,309		4,528,731
Mortgage loans held for portfolio, net | Government-guaranteed/insured loans
Mortgage Loans held for portfolio [Line Items]
Allowance for credit losses on mortgage loans		0		0
Mortgage loans held for portfolio, net | Conventional MPF Loan [Member]
Mortgage Loans held for portfolio [Line Items]
Allowance for credit losses on mortgage loans		(2,971)	$ (3,256)	(3,240)	$ (3,631)	$ (3,499)	$ (3,412)
Single Family [Member] | Fixed-rate long-term single-family mortgages (1)
Mortgage Loans held for portfolio [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	[3]	4,485,907		4,388,461
Single Family [Member] | Fixed-rate medium-term single-family mortgages (1)
Mortgage Loans held for portfolio [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	[3]	$ 122,402		$ 140,270

[1] The amortized cost at September 30, 2023 and December 31, 2022 excludes accrued interest receivable.

[2] Amounts exclude accrued interest receivable of $23.8 million at September 30, 2023 and $22.5 million at December 31, 2022

[3] ) Long-term is defined as greater than 15 years. Medium-term is defined as a term of 15 years or less.

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Mortgage Loans Held for Portfolio Credit Quality Indicators (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	[1]	$ 9,921	$ 9,225
Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	[2]	4,666,878	4,594,128
Financing Receivable, 90 Days or More Past Due, Still Accruing		1,707	3,182
Financing Receivable, Excluding Accrued Interest, Nonaccrual		20,997	20,950
Government-guaranteed/insured loans
Financing Receivable, Credit Quality Indicator [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	[1]	947	1,352
Government-guaranteed/insured loans | Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, 90 Days or More Past Due, Still Accruing		1,707	3,182
Financing Receivable, Excluding Accrued Interest, Nonaccrual		0	0
Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years	[3]	3,344,202	3,343,728
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	[3]	4,558,767	4,478,734
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	[3]	1,214,565	1,135,006
Mortgage Loans in Process of Foreclosure, Amount	[1]	8,974	7,873
Conventional MPF Loan [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year		36,963
Conventional MPF Loan [Member] | Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, 90 Days or More Past Due, Still Accruing		0	0
Financing Receivable, Excluding Accrued Interest, Nonaccrual		20,997	20,950
Financial Asset, 30 to 59 Days Past Due [Member] | Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years		25,122	19,806
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		46,777	33,175
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		21,655	13,369
Financial Asset, 60 to 89 Days Past Due [Member] | Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years		6,507	6,321
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		13,168	10,421
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		$ 6,661	$ 4,100
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Percent Past Due	[4]	0.50%	0.50%
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Government-guaranteed/insured loans | Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Percent Past Due	[4]	1.90%	2.90%
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years		$ 9,116	$ 9,856
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		17,763	18,072
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		$ 8,647	$ 8,216
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Conventional MPF Loan [Member] | Mortgage loans held for portfolio, net
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Percent Past Due	[4]	0.40%	0.40%
Financial Asset, Past Due | Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years		$ 40,745	$ 35,983
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		77,708	61,668
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year			25,685
Financial Asset, Not Past Due | Conventional MPF Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated, Current Fiscal Year and Preceeding Four Preceeding Fiscal Years		3,303,457	3,307,745
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		4,481,059	4,417,066
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		$ 1,177,602	$ 1,109,321

[1] Includes loans where the decision of foreclosure or similar alternative such as pursuit of deed-in-lieu has been reported. Loans in process of foreclosure are included in past due or current loans dependent on their delinquency status.

[2] Amounts exclude accrued interest receivable of $23.8 million at September 30, 2023 and $22.5 million at December 31, 2022

[3] The amortized cost at September 30, 2023 and December 31, 2022 excludes accrued interest receivable.

[4] Loans that are 90 days or more past due or in the process of foreclosure expressed as a percentage of the total loan portfolio class.

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Mortgage Loans Held for Portfolio MPF -Allowance Roll Forward Table (Details) - Mortgage loans held for portfolio, net - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
MPF - Allowance for Credit Loss - Beginning Balance				$ 3,240
MPF -Allowance for Credit Loss - Ending Balance		$ 2,971		2,971
Conventional MPF Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
MPF - Allowance for Credit Loss - Beginning Balance		3,256	$ 3,499	3,240	$ 3,412
(Charge-offs) Recoveries, net	[1]	21	(99)	(9)	(326)
Provision( reversal) for credit losses		264	(33)	278	107
MPF -Allowance for Credit Loss - Ending Balance		$ 2,971	$ 3,631	$ 2,971	$ 3,631

[1] Net charge-offs that the Bank does not expect to recover through CE receivable.

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Mortgage Loans Held for Portfolio Narrative (Details) - Mortgage loans held for portfolio, net - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	$ 20,997	$ 20,950
Government-guaranteed/insured loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	0	0
Conventional MPF Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	$ 20,997	$ 20,950

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Derivatives and Hedging Activities (Derivatives in Statement of Condition) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		$ 88,483,396	$ 72,201,792
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		317,887	60,626
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		966,342	1,009,632
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	[1],[2]	107,743	168,370
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[1]	(955,918)	(996,194)	[2]
Derivative assets		425,630	228,996
Derivative liabilities		10,424	13,438
Cash Collateral posted		1,088,500	1,166,400
Cash Collateral received		24,900	1,900
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		84,830,852	69,039,626
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		309,440	53,340
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		941,436	985,134
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		3,652,544	3,162,166
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		8,447	7,286
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		24,906	24,498
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		2,482,690	2,176,879
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		2,222	2,112
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		24,786	24,457
Not Designated as Hedging Instrument [Member] | Interest Rate Caps or Floors [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		1,145,000	975,000
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		6,218	5,164
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		0	0
Mortgage Receivable [Member] | Not Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		24,854	10,287
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement		7	10
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement		$ 120	$ 41

[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022

[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

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Derivatives and Hedging Activities (Derivatives in Statement of Income and Impact on Interest) (Details) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2023

Sep. 30, 2022

Sep. 30, 2023

Sep. 30, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]

The following table presents, by type of hedged item, the gains (losses) on derivatives and the related hedged items in fair value hedging relationships, which also includes amortization of basis adjustments related to hedged items in discontinued fair value hedge relationships, and the impact of those derivatives on the Bank’s net interest income. Also included is the amortization of basis adjustments related to mortgage delivery commitments, which are characterized as derivatives, but are not designated in fair value hedge relationships.

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2023
Hedged item type:
Advances	$	36,853	$	(36,808)	$	91,203	$	91,248	$	1,071,029
AFS securities	138,160		(138,366)		47,439		47,233		190,518
Mortgage loans held for portfolio	—		(119)		—		(119)		37,516
Consolidated obligations – discount notes	4,507		(2,215)		(4,712)		(2,420)		(220,233)
Consolidated obligations – bonds	53,846		(54,243)		(179,861)		(180,258)		(1,079,869)
Total	$	233,366	$	(231,751)	$	(45,931)	$	(44,316)
Nine months ended September 30, 2023
Hedged item type:
Advances	$	119,382	$	(119,191)	$	225,959	$	226,150	$	3,120,857
AFS securities	100,815		(100,467)		138,872		139,220		516,045
Mortgage loans held for portfolio	—		(423)		—		(423)		108,824
Consolidated obligations – discount notes	3,573		(5,584)		(6,778)		(8,789)		(943,590)
Consolidated obligations – bonds	66,758		(67,189)		(450,544)		(450,975)		(2,778,910)
Total	$	290,528	$	(292,854)	$	(92,491)	$	(94,817)

(in thousands)	Gains/(Losses) on Derivative		Gains/ (Losses) on Hedged Item		Net Interest Settlements		Effect of Derivatives on Net Interest Income		Total Interest Income/ (Expense) Recorded in the Statement of Income
Three months ended September 30, 2022
Hedged item type:
Advances	$	169,040	$	(169,040)	$	7,543	$	7,543	$	271,015
AFS securities	205,163		(203,981)		13,895		15,077		79,004
Mortgage loans held for portfolio	—		(385)		—		(385)		34,145
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(142,549)
Consolidated obligations – bonds	(423,483)		424,114		(20,976)		(20,345)		(194,399)
Total	$	(51,007)	$	52,486	$	2,390	$	3,869
Nine months ended September 30, 2022
Hedged item type:
Advances	$	426,080	$	(426,158)	$	(41,764)	$	(41,842)	$	382,012
AFS securities	573,187		(570,087)		(5,437)		(2,337)		144,726
Mortgage loans held for portfolio	—		(1,237)		—		(1,237)		99,890
Consolidated obligations - discount notes	(1,727)		1,778		1,928		1,979		(181,711)
Consolidated obligations – bonds	(1,023,493)		1,024,111		31,147		31,765		(318,851)
	$	(25,953)	$	28,407	$	(14,126)	$	(11,672)

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

$ 233,366

$ (51,007)

$ 290,528

$ (25,953)

Gains/(Losses) on Hedged Item

(231,751)

52,486

(292,854)

28,407

Net Interest Settlements on FV Hedges

(45,931)

2,390

(92,491)

(14,126)

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

(44,316)

3,869

(94,817)

(11,672)

Advances

1,071,029

271,015

3,120,857

382,012

Available-for-sale (AFS) securities

190,518

79,004

516,045

144,726

Mortgage loans held for portfolio

37,516

34,145

108,824

99,890

Consolidated obligations - bonds

1,079,869

194,399

2,778,910

318,851

Consolidated obligations - discount notes

(220,233)

(142,549)

(943,590)

(181,711)

Advances [Member] | Interest Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

36,853

169,040

119,382

426,080

Gains/(Losses) on Hedged Item

(36,808)

(169,040)

(119,191)

(426,158)

Net Interest Settlements on FV Hedges

91,203

7,543

225,959

(41,764)

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

91,248

7,543

226,150

(41,842)

Available-for-sale Securities | Interest Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

138,160

205,163

100,815

573,187

Gains/(Losses) on Hedged Item

(138,366)

(203,981)

(100,467)

(570,087)

Net Interest Settlements on FV Hedges

47,439

13,895

138,872

(5,437)

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

47,233

15,077

139,220

(2,337)

Mortgage Receivable [Member] | Interest Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

0

0

0

0

Gains/(Losses) on Hedged Item

(119)

(385)

(423)

(1,237)

Net Interest Settlements on FV Hedges

0

0

0

0

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

(119)

(385)

(423)

(1,237)

Consolidated Obligations Bonds [Member] | Interest Expense [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

53,846

(423,483)

66,758

(1,023,493)

Gains/(Losses) on Hedged Item

(54,243)

424,114

(67,189)

1,024,111

Net Interest Settlements on FV Hedges

(179,861)

(20,976)

(450,544)

31,147

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

(180,258)

(20,345)

(450,975)

31,765

Consolidated Obligations Discount Notes | Interest Expense [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gains/(Losses) on Derivative

4,507

(1,727)

3,573

(1,727)

Gains/(Losses) on Hedged Item

(2,215)

1,778

(5,584)

1,778

Net Interest Settlements on FV Hedges

(4,712)

1,928

(6,778)

1,928

Gain (Loss) on Fair Value Hedges Recognized in Net Interest Income

$ (2,420)

$ 1,979

$ (8,789)

$ 1,979

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Fair Value Measures and Disclosures (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Advances [Member]
Derivative [Line Items]
Hedged Asset, Fair Value Hedge	[1]	$ 18,085,427	$ 9,516,520
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease)		(490,190)	(370,776)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		(693)	(918)
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)		(490,883)	(371,694)
Available-for-sale Securities
Derivative [Line Items]
Hedged Asset, Fair Value Hedge	[1]	6,373,108	6,265,480
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease)		(614,186)	(513,825)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		767	873
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)		(613,419)	(512,952)
Consolidated Obligations Bonds [Member]
Derivative [Line Items]
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		(1,005,089)	(1,072,289)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		0	10
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		(1,005,089)	(1,072,279)
Hedged Liability, Fair Value Hedge	[1]	55,439,243	33,603,677
Consolidated Obligations Discount Notes
Derivative [Line Items]
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		(1,473)	(7,057)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		0	0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		(1,473)	(7,057)
Hedged Liability, Fair Value Hedge		$ 2,575,584	$ 17,481,373

[1] Includes carrying value of hedged items in current fair value hedging relationships.

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Derivatives and Hedging Activities (Derivatives in Statement of Income) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023		Sep. 30, 2022	Sep. 30, 2023		Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	$ 7,270		$ 6,648	$ 21,216		$ 15,409
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	5,913		7,953	19,717		15,795
Interest Rate Caps or Floors [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	(1,273)		1,338	(2,230)		3,779
Net Interest Settlements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	3,941		(2,137)	5,850		(1,070)
TBA's [Member] [Domain]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	0		0	0		74
Other Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	0		0	1		1
Derivatives Not Designated As Hedging Before Price Alignment
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	7,850		6,727	22,482		15,826
Price Alignment Amount
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	(580)	[1]	(79)	(1,266)	[1]	(417)
Mortgage Receivable [Member] | Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) related to derivatives not designated as hedging instruments	$ (731)		$ (427)	$ (856)		$ (2,753)

[1] This amount is for derivatives for which variation margin is characterized as a daily settled contract.

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Derivatives and Hedging Activities (Offsetting Assets) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset		$ 317,880	$ 60,616
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[1],[2]	107,743	168,370
Derivative Asset, Net Fair Value Amount, After Offsetting Adjustment		425,623	228,986
Derivative Asset, Not Subject to Master Netting Arrangement		7	10	[3]
Derivative assets		425,630	228,996
Derivative Liability, Fair Value, Gross Liability		966,222	1,009,591
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[1]	(955,918)	(996,194)	[2]
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		10,304	13,397
Derivative Liability, Not Subject to Master Netting Arrangement		120	41	[3]
Derivative liabilities (Note 5)		10,424	13,438
Over the Counter [Member]
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset		311,792	43,901
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(302,630)	(41,679)
Derivative Asset, Net Fair Value Amount, After Offsetting Adjustment		9,162	2,222
Derivative Asset, Not Subject to Master Netting Arrangement		7	10	[3]
Derivative assets		9,169	2,232
Derivative Liability, Fair Value, Gross Liability		951,839	1,003,917
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(949,860)	(992,167)
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		1,979	11,750
Derivative Liability, Not Subject to Master Netting Arrangement		120	41	[3]
Derivative liabilities (Note 5)		2,099	11,791
Exchange Cleared [Member]
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset		6,088	16,715
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		410,373	210,049
Derivative Asset, Net Fair Value Amount, After Offsetting Adjustment		416,461	226,764
Derivative Asset, Not Subject to Master Netting Arrangement		0	0	[3]
Derivative assets		416,461	226,764
Derivative Liability, Fair Value, Gross Liability		14,383	5,674
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(6,058)	(4,027)
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		8,325	1,647
Derivative Liability, Not Subject to Master Netting Arrangement		0	0	[3]
Derivative liabilities (Note 5)		$ 8,325	$ 1,647

[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022

[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

[3] Represents derivatives that are not subject to an enforceable netting agreement (e.g., mortgage delivery commitments).

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Derivatives and Hedging Activities (Offsetting Liabilities) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Offsetting Liabilities [Line Items]
Derivative Liability, Fair Value, Gross Liability		$ 966,222	$ 1,009,591
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[1]	(955,918)	(996,194)	[2]
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		10,304	13,397
Derivative Liability, Not Subject to Master Netting Arrangement		120	41	[3]
Derivative liabilities		10,424	13,438
Over the Counter [Member]
Offsetting Liabilities [Line Items]
Derivative Liability, Fair Value, Gross Liability		951,839	1,003,917
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(949,860)	(992,167)
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		1,979	11,750
Derivative Liability, Not Subject to Master Netting Arrangement		120	41	[3]
Derivative liabilities		2,099	11,791
Exchange Cleared [Member]
Offsetting Liabilities [Line Items]
Derivative Liability, Fair Value, Gross Liability		14,383	5,674
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(6,058)	(4,027)
Derivative Laibility, Net Fair Value Amount, After Offsetting Adjustment		8,325	1,647
Derivative Liability, Not Subject to Master Netting Arrangement		0	0	[3]
Derivative liabilities		$ 8,325	$ 1,647

[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022

[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

[3] Represents derivatives that are not subject to an enforceable netting agreement (e.g., mortgage delivery commitments).

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Schedule of Long-term Debt by Call Feature (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Short-term and Long-term Debt [Line Items]
Par amounts for the FHLBanks' outstanding Consolidated Obligation	$ 1,229,900,000	$ 1,181,700,000
Bond premiums	38,861	47,515
Bond discounts	(14,546)	(14,069)
Concession fees	(6,073)	(5,008)
Hedging adjustments	(1,005,089)	(1,072,278)
Total book value	86,842,548	56,471,455
Long-term Debt, Gross	87,829,395	57,515,295
Fixed Interest Rate [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	64,145,995	39,983,295
Step-up Interest Rate [Member] [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	2,083,000	3,124,000
Variable interest rate [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	$ 21,600,400	$ 14,408,000

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Consolidated Obligations (Contractual Maturity Terms) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	$ 57,480,770	$ 30,747,975
Long Debt, Maturities, Repayments of Principal in Next Twelve Months, Weighted Average Interest Rate	4.79%	3.72%
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	$ 14,447,865	$ 11,491,385
Long-term Debt, Maturities, Repayments of Principal in Year Two, Weighted Average Interest Rate	4.26%	3.09%
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	$ 6,557,100	$ 3,263,725
Long-term Debt, Maturities, Repayments of Principal in Year Three, Weighted Average Interest Rate	2.20%	2.16%
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	$ 3,879,200	$ 6,557,800
Long-term Debt, Maturities, Repayments of Principal in Year Four, Weighted Average Interest Rate	2.22%	1.25%
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	$ 2,204,250	$ 1,850,300
Long-term Debt, Maturities, Repayments of Principal in Year Five, Weighted Average Interest Rate	3.61%	3.09%
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	$ 3,260,210	$ 3,604,110
Long-term Debt, Maturities, Repayments of Principal After Year Five, Weighted Average Interest Rate	2.68%	2.37%
Long-term Debt, Gross	$ 87,829,395	$ 57,515,295
Long-term Debt, Weighted Average Interest Rate, at Point in Time	4.29%	3.12%

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Consolidated Obligations (Consolidated Obligation Bonds Noncallable and Callable) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	$ 87,829,395	$ 57,515,295
Non Callable [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	47,274,895	35,816,795
Callable [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Gross	$ 40,554,500	$ 21,698,500

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Consolidated Obligations (Consolidated Obligation Bonds by Earlier of Contractual Maturity or Next Call Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	$ 57,480,770	$ 30,747,975
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	14,447,865	11,491,385
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	6,557,100	3,263,725
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	3,879,200	6,557,800
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	2,204,250	1,850,300
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	3,260,210	3,604,110
Long-term Debt, Gross	87,829,395	57,515,295
Earlier of Contractual Maturity or Next Call Date [Member] [Member]
Schedule of Short-term and Long-term Debt [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	72,520,270	47,036,975
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Two	10,188,365	6,573,385
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Three	1,997,100	1,049,725
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Four	617,200	1,035,800
Long-term Debt, Maturities, Repayments of Principal in Rolling Year Five	1,397,250	392,300
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	$ 1,109,210	$ 1,427,110

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Consolidated Obligations (Consolidated Obligation Discount Notes) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Short-term Debt [Line Items]
Discount Notes, Book value		$ 12,520,373	$ 33,745,478
Discount Notes, Weighted Average Interest Rate	[1]	5.31%	4.25%
Short-term Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount		$ 12,625,033	$ 34,007,058

[1] Represents yield to maturity excluding concession fees and hedging adjustments.

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Capital (Capital Requirements) (Details) $ in Thousands	Sep. 30, 2023 USD ($) numberOfRegulatoryRequirements	Dec. 31, 2022 USD ($)
Banking Regulation, Total Capital [Abstract]
Number of Finance Agency Regulatory Capital Requirements | numberOfRegulatoryRequirements	3
Number Of Subclasses Of Capital Stock	2
Risk-Based Capital, Required	$ 747,464	$ 441,078
Risk-Based Capital, Actual	$ 5,649,663	$ 4,992,405
Total capital-to-asset ratio, Required	4.00%	4.00%
Total capital-to-asset ratio, Actual	5.30%	5.20%
Total regulatory capital, Required	$ 4,277,496	$ 3,845,647
Total regulatory capital, Actual	$ 5,649,663	$ 4,992,405
Leverage ratio - Required	5.00%	5.00%
Leverage ratio, Actual	7.90%	7.80%
Leverage capital, Required	$ 5,346,870	$ 4,807,058
Leverage capital, Actual	$ 8,474,495	$ 7,488,607

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Capital (Mandatorily Redeemable Capital Stock) (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) Institutions $ / shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) Institutions $ / shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 $ / shares
Banking Regulation, Total Capital [Abstract]
Interest Expense, Capital Securities	$ 600	$ 400	$ 1,700	$ 1,100
Balance, beginning of the period			27,763	22,457
Capital stock subject to mandatory redemption reclassified from capital	5,885	5,810	13,681	5,810
Redemption/repurchase of mandatorily redeemable capital stock			(13,448)	(227)
Balance, end of the period	$ 27,996	28,040	$ 27,996	28,040
Capital stock, Par value Per Share | $ / shares	$ 100		$ 100		$ 100
Financial Instruments Subject to Mandatory Redemption, Number of Institutions | Institutions	8		8
Financial Instruments Subject to Mandatory Redemption, Due to Institution Mergers | Institutions	4		4
Financial instruments subject to mandatory redemption, due to relocation | Institutions	1		1
Financial Instruments Subject to Mandatory Redemption, Number of Institutions, Voluntary Withdrawls | Institutions	3		3
Capital [Line Items]
Interest Expense, Capital Securities	$ 600	$ 400	$ 1,700	$ 1,100

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Capital (Mandatorily Redeemable Capital Stock by Contractual Year of Redemption) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Banking Regulation, Total Capital [Abstract]
Due in 1 year or less	$ 0	$ 20,000
Due after 1 year through 2 years	40	0
Due after 2 years through 3 years	486	34
Due after 3 years through 4 years	4,787	527
Due after 4 years through 5 years	1,206	5,571
Financial Instruments Subject to Mandatory Redemption, Past Contractual Redemption Date, Due to Outstanding Activity	21,477	1,631
Total	$ 27,996	$ 27,763	$ 28,040	$ 22,457

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Capital (Dividends and Retained Earnings) (Details) - USD ($)								9 Months Ended
	Oct. 27, 2023	Jul. 28, 2023	Apr. 28, 2023	Feb. 24, 2023	Jul. 29, 2022	Apr. 29, 2022	Feb. 23, 2022	Sep. 30, 2023	Dec. 31, 2022
Capital [Line Items]
Joint Capital Enhancement Agreement Percentage								20.00%
Percent of Average Balance of Outstanding Consolidated Obligations Required per the Joint Capital Enhancement Agreement For Each Previous Quarter								1.00%
Retained Earnings, Restricted, Percent								150.00%
Unrestricted								$ 1,190,967,000	$ 1,037,182,000
Restricted								590,082,000	499,055,000
Retained Earnings (Accumulated Deficit)								1,781,049,000	1,536,237,000
Subclass B1 [Member]
Capital [Line Items]
Common Stock, Value, Outstanding								315,300,000	309,000,000
Dividends Cash, Annualized Rate		5.25%	5.00%	4.00%	2.25%	1.25%	1.25%
Subclass B1 [Member] | Subsequent Event [Member]
Capital [Line Items]
Dividends Cash, Annualized Rate	5.35%
Subclass B2 [Member]
Capital [Line Items]
Common Stock, Value, Outstanding								$ 3,525,300,000	$ 3,119,400,000
Dividends Cash, Annualized Rate		7.95%	7.95%	7.95%	6.25%	5.25%	5.25%
Subclass B2 [Member] | Subsequent Event [Member]
Capital [Line Items]
Dividends Cash, Annualized Rate	8.25%

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Capital (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI balance	$ 5,505,967	$ 4,463,039	$ 5,505,967	$ 4,463,039	$ 5,640,907	$ 4,898,115	$ 3,497,955	$ 2,735,652
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent	(8)	189	(25)	567
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	188	489	415
Net Unrealized Gains(Losses)
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI balance	(115,065)	(62,661)	(115,065)	(62,661)	(49,722)	(65,917)	9,380	115,015
Net unrealized gains (losses)	(65,343)		(48,659)	(177,261)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	188	(489)
Pension and Post Retirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI balance	(635)	(4,257)	(635)	(4,257)	(627)	(610)	(4,446)	(4,824)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent	(8)	189	(25)	567
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI balance	(115,700)	(66,918)	(115,700)	(66,918)	$ (50,349)	$ (66,527)	$ 4,934	$ 110,191
Net unrealized gains (losses)	(65,343)	(71,853)	(48,659)	(177,261)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent	(8)	189	(25)	$ 567
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	$ 0	$ 188	$ 489

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Transactions with Related Parties (By Balance Sheet Grouping) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Advances		$ 76,202,160	$ 68,856,236
Deposits		855,987	553,279
Capital stock		3,840,618	3,428,405
Principal Owner [Member]
Related Party Transaction [Line Items]
Advances		43,382,124	42,401,975
Letters of credit	[1]	21,611,992	16,928,206
MPF loans		209,693	263,795
Deposits		40,655	32,335
Capital stock		$ 1,971,571	$ 1,891,978

[1] Par balances(2) Letters of credit are off-balance sheet commitments.

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Transactions with Related Parties (Statement of Income Effects) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Related Party Transaction [Line Items]
Interest income on advances (1)	$ 1,071,029	$ 271,015	$ 3,120,857	$ 382,012
Interest Income on MPF loans	37,516	34,145	108,824	99,890
Letters of credit fees	8,133	6,443	22,173	17,739
Principal Owner [Member]
Related Party Transaction [Line Items]
Interest income on advances (1)	601,408	181,760	1,824,881	283,054
Interest Income on MPF loans	2,628	3,318	8,216	7,431
Letters of credit fees	$ 8,067	$ 90	$ 19,127	$ 4,694

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Transactions with Related Parties (Transactions with Other FHLBanks) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Loans Repaid by Other Federal Home Loan Banks	$ 0	$ 1,000,000,000	$ 750,000,000	$ 1,800,000,000
Loans from Other Federal Home Loan Banks	0	2	0	2
FHLBank of Chicago [Member]
Related Party Transaction [Line Items]
Servicing fee expense	952,000	$ 890,000	2,833,000	$ 2,674,000
Interest-bearing deposits maintained with FHLBank of Chicago	$ 5,483,000		$ 5,483,000		$ 5,119,000

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Estimated Fair Values (Carrying Value and Fair Value of Financial Instruments) (Details) - USD ($)		Sep. 30, 2023		Dec. 31, 2022		Sep. 30, 2022	Dec. 31, 2021
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		$ 20,328,000		$ 13,242,000
Interest-bearing deposits		3,040,744,000		2,471,135,000
Securities Purchased under Agreements to Resell, Fair Value Disclosure		3,380,000,000		3,200,000,000
Federal funds sold		3,536,000,000		3,050,000,000
Trading securities		212,634,000		214,008,000
Fair Value		13,649,563,000		12,190,560,000
HTM securities; fair value of $1,138,129 and $874,282		1,247,367,000		956,471,000
Advances		76,202,160,000		68,856,236,000
Accrued interest receivable		498,984,000		310,081,000
Derivative assets		425,630,000		228,996,000
Deposits		855,987,000		553,279,000
Mandatorily redeemable capital stock (Note 7)		27,996,000		27,763,000
Accrued interest payable		807,851,000		287,539,000
Derivative liabilities		10,424,000		13,438,000
Cash and due from banks		20,328,000		13,242,000
Trading securities		212,634,000		214,008,000
Fair Value		13,649,563,000		12,190,560,000
HTM securities; fair value of $1,138,129 and $874,282	[1]	1,247,367,000		956,471,000
HTM securities		1,138,129,000		874,282,000
Accrued interest receivable		498,984,000		310,081,000
Derivative assets		425,630,000		228,996,000
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	[2],[3]	107,743,000		168,370,000
Mandatorily redeemable capital stock (Note 7)		27,996,000		27,763,000		$ 28,040,000	$ 22,457,000
Accrued interest payable		807,851,000		287,539,000
Derivative liabilities		10,424,000		13,438,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[2]	(955,918,000)		(996,194,000)	[3]
GSE obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		212,634,000		214,008,000
Fair Value		987,383,000		1,125,743,000
U.S. Treasury obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		3,525,693,000		5,232,493,000
State or local agency obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		160,045,000		170,263,000
Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		1,341,918,000		482,982,000
HTM securities; fair value of $1,138,129 and $874,282		542,363,000	[1]	162,366,000
HTM securities		527,218,000		157,169,000
GSE MBS [Member] | Multifamily [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		5,561,696,000		3,155,771,000
HTM securities; fair value of $1,138,129 and $874,282		258,912,000	[1]	305,306,000
HTM securities		244,055,000		295,058,000
GSE MBS [Member] | Single Family [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		1,945,971,000		1,881,037,000
HTM securities; fair value of $1,138,129 and $874,282		399,294,000	[1]	435,129,000
HTM securities		323,247,000		372,003,000
Private label MBS [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value		126,857,000		142,271,000
HTM securities; fair value of $1,138,129 and $874,282		46,798,000	[1]	53,670,000
HTM securities		43,609,000		50,052,000
Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		107,743,000		168,370,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(955,918,000)	[3]	(996,194,000)
Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		107,743,000		168,370,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(955,918,000)		(996,194,000)
Forward Contracts [Member] | Fair Value, Recurring [Member] | Mortgage Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		0		0
Estimate of Fair Value, Fair Value Disclosure
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		20,328,000		13,242,000
Interest-bearing deposits		3,040,744,000		2,471,135,000
Securities Purchased under Agreements to Resell, Fair Value Disclosure	[4]	3,379,996,000		3,200,137,000
Federal funds sold		3,536,000,000		3,050,141,000
Trading securities		212,634,000		214,008,000
Fair Value		13,649,562,000		12,190,560,000
HTM securities		1,138,129,000		874,282,000
Advances		76,073,438,000		68,548,367,000
Accrued interest receivable		498,984,000		310,081,000
Derivative assets		425,630,000		228,996,000
Deposits		855,987,000		553,279,000
Mandatorily redeemable capital stock (Note 7)	[5]	28,597,000		28,321,000
Accrued interest payable	[5]	807,250,000		286,981,000
Derivative liabilities		10,424,000		13,438,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		13,649,563,000		12,190,560,000
Derivative assets		425,630,000		228,996,000
Derivative liabilities		10,424,000		13,438,000
Total assets at fair value		14,287,827,000		12,633,564,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | GSE obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		987,383,000		1,125,743,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | U.S. Treasury obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		3,525,693,000		5,232,493,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | State or local agency obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		160,045,000		170,263,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		1,341,918,000		482,982,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | GSE MBS [Member] | Multifamily [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		5,561,696,000		3,155,771,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | GSE MBS [Member] | Single Family [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		1,945,971,000		1,881,037,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Recurring [Member] | Private label MBS [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		126,857,000		142,271,000
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		5,743,000		5,240,000
REO - FV		290,000		403,000
Total assets at fair value		6,033,000		5,643,000
Estimate of Fair Value, Fair Value Disclosure | Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		425,623,000		228,986,000
Derivative liabilities		10,304,000		13,397,000
Estimate of Fair Value, Fair Value Disclosure | Forward Contracts [Member] | Fair Value, Recurring [Member] | Mortgage Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		7,000		10,000
Derivative liabilities		120,000		41,000
Consolidated Obligations, Discount Notes | Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes		12,520,373,000		33,745,478,000
Consolidated Obligations, Discount Notes | Estimate of Fair Value, Fair Value Disclosure
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes		12,515,800,000		33,739,166,000
Consolidated Obligation Bonds | Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds		86,842,548,000		56,471,455,000
Consolidated Obligation Bonds | Estimate of Fair Value, Fair Value Disclosure
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds		86,048,254,000		55,694,094,000
Mortgage loans held for portfolio, net | Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		4,663,907,000		4,590,888,000
Mortgage loans held for portfolio, net | Estimate of Fair Value, Fair Value Disclosure
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		3,941,940,000		4,039,588,000
Banking on Business Loans | Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		25,354,000		22,998,000
Banking on Business Loans | Estimate of Fair Value, Fair Value Disclosure
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		25,354,000		22,998,000
Fair Value, Inputs, Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks		20,328,000		13,242,000
Interest-bearing deposits		3,040,744,000		2,471,135,000
Securities Purchased under Agreements to Resell, Fair Value Disclosure		0	[4]	0
Federal funds sold		0		0
Trading securities		0		0
Fair Value		0		0
HTM securities		0		0
Advances		0		0
Accrued interest receivable		0		0
Derivative assets		0		0
Deposits		0		0
Mandatorily redeemable capital stock (Note 7)		28,597,000		28,321,000
Accrued interest payable		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		0		0
AFS Securities		0		0
Derivative assets		0		0
Derivative liabilities		0
Total assets at fair value		0		0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | GSE obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		0		0
AFS Securities		0		0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | State or local agency obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | GSE MBS [Member] | Multifamily [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | GSE MBS [Member] | Single Family [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Private label MBS [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 1 | Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		0		0
Derivative liabilities				0
Fair Value, Inputs, Level 1 | Forward Contracts [Member] | Fair Value, Recurring [Member] | Mortgage Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		0		0
Derivative liabilities		0
Fair Value, Inputs, Level 1 | Consolidated Obligations, Discount Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes		0		0
Fair Value, Inputs, Level 1 | Consolidated Obligation Bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds		0		0
Fair Value, Inputs, Level 1 | Mortgage loans held for portfolio, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		0		0
Fair Value, Inputs, Level 1 | Banking on Business Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		0		0
Fair Value, Inputs, Level 2
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, Fair Value Disclosure	[4]	3,379,996,000		3,200,137,000
Federal funds sold		3,536,000,000		3,050,141,000
Trading securities		212,634,000		214,008,000
Fair Value		13,522,705,000		12,048,289,000
HTM securities		1,094,520,000		824,230,000
Advances		76,073,438,000		68,548,367,000
Accrued interest receivable		498,984,000		310,081,000
Derivative assets		317,887,000		60,626,000
Deposits		855,987,000		553,279,000
Mandatorily redeemable capital stock (Note 7)		0		0
Accrued interest payable		807,250,000		286,981,000
Derivative liabilities		966,342,000		1,009,632,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		13,522,706,000		12,048,289,000
Derivative assets		317,887,000		60,626,000
Derivative liabilities		966,342,000		1,009,632,000
Total assets at fair value		14,053,227,000		12,322,923,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | GSE obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		987,383,000		1,125,743,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | U.S. Treasury obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		3,525,693,000		5,232,493,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | State or local agency obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		160,045,000
Fair Value				170,263,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		1,341,918,000
Fair Value				482,982,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | GSE MBS [Member] | Multifamily [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		5,561,696,000
Fair Value				3,155,771,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | GSE MBS [Member] | Single Family [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		1,945,971,000
Fair Value				1,881,037,000
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Private label MBS [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 2 | Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		317,880,000		60,616,000
Derivative liabilities		966,222,000		1,009,591,000
Fair Value, Inputs, Level 2 | Forward Contracts [Member] | Fair Value, Recurring [Member] | Mortgage Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		7,000		10,000
Derivative liabilities		120,000		41,000
Fair Value, Inputs, Level 2 | Consolidated Obligations, Discount Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes		12,515,800,000		33,739,166,000
Fair Value, Inputs, Level 2 | Consolidated Obligation Bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds		86,048,254,000		55,694,094,000
Fair Value, Inputs, Level 2 | Mortgage loans held for portfolio, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		3,941,940,000		4,039,588,000
Fair Value, Inputs, Level 2 | Banking on Business Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		0		0
Fair Value, Inputs, Level 3
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, Fair Value Disclosure	[4]	0		0
Federal funds sold		0		0
Trading securities		0		0
Fair Value		126,857,000		142,271,000
HTM securities		43,609,000		50,052,000
Advances		0		0
Accrued interest receivable		0		0
Derivative assets		0		0
Deposits		0		0
Mandatorily redeemable capital stock (Note 7)		0		0
Accrued interest payable		0		0
Derivative liabilities		0		0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		0		0
AFS Securities		126,857,000		142,271,000
Derivative assets		0		0
Derivative liabilities		0
Total assets at fair value		126,857,000		142,271,000
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | GSE obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities		0		0
AFS Securities		0		0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | State or local agency obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | Single Family, Mortgage-backed Securities, Other US Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | GSE MBS [Member] | Multifamily [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | GSE MBS [Member] | Single Family [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		0
Fair Value				0
Fair Value, Inputs, Level 3 | Fair Value, Recurring [Member] | Private label MBS [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
AFS Securities		126,857,000
Fair Value				142,271,000
Fair Value, Inputs, Level 3 | Fair Value, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		5,743,000		5,240,000
REO - FV		290,000		403,000
Total assets at fair value		6,033,000		5,643,000
Fair Value, Inputs, Level 3 | Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		0		0
Derivative liabilities				0
Fair Value, Inputs, Level 3 | Forward Contracts [Member] | Fair Value, Recurring [Member] | Mortgage Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets		0		0
Derivative liabilities		0
Fair Value, Inputs, Level 3 | Consolidated Obligations, Discount Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount notes		0		0
Fair Value, Inputs, Level 3 | Consolidated Obligation Bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Bonds		0		0
Fair Value, Inputs, Level 3 | Mortgage loans held for portfolio, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		0		0
Fair Value, Inputs, Level 3 | Banking on Business Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
MPF & BOB Loans , Net of Allowance		$ 25,354,000		$ 22,998,000

[1] Includes adjustments made to the cost basis of an investment for accretion and amortization and excludes accrued interest receivable of $4.1 million at September 30, 2023 and $2.4 million at December 31, 2022.

[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022

[3] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

[4] Based on the fair value of the related collateral held, the securities purchased under agreements to resell were fully collateralized for the periods presented. There were no offsetting liabilities related to these securities at September 30, 2023 and December 31, 2022. These instruments’ maturity term is overnight.

[5] The estimated fair value amount for the mandatorily redeemable capital stock line item includes accrued dividend interest; this amount is excluded from the estimated fair value for the accrued interest payable line item.

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Estimated Fair Values (Fair Value Measured on Recurring and Nonrecurring Basis) (Details) - USD ($)		Sep. 30, 2023		Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		$ 212,634,000		$ 214,008,000
Derivative assets		425,630,000		228,996,000
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	[1],[2]	107,743,000		168,370,000
Derivative liabilities		10,424,000		13,438,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	[1]	(955,918,000)		(996,194,000)	[2]
Fair Value		13,649,563,000		12,190,560,000
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value		0		0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
Derivative assets		317,887,000		60,626,000
Derivative liabilities		966,342,000		1,009,632,000
Fair Value		13,522,705,000		12,048,289,000
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
Derivative assets		0		0
Derivative liabilities		0		0
Fair Value		126,857,000		142,271,000
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		107,743,000		168,370,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(955,918,000)	[2]	(996,194,000)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
AFS Securities		0		0
Derivative assets		0		0
Derivative liabilities		0
Total assets at fair value		0		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		13,522,706,000		12,048,289,000
Derivative assets		317,887,000		60,626,000
Derivative liabilities		966,342,000		1,009,632,000
Total assets at fair value		14,053,227,000		12,322,923,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
AFS Securities		126,857,000		142,271,000
Derivative assets		0		0
Derivative liabilities		0
Total assets at fair value		126,857,000		142,271,000
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for portfolio		5,743,000		5,240,000
REO - FV		290,000		403,000
Total assets at fair value		6,033,000		5,643,000
Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		107,743,000		168,370,000
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset		(955,918,000)		(996,194,000)
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities				0
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		317,880,000		60,616,000
Derivative liabilities		966,222,000		1,009,591,000
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities				0
U.S. Treasury obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		3,525,693,000		5,232,493,000
U.S. Treasury obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		3,525,693,000		5,232,493,000
GSE obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
Fair Value		987,383,000		1,125,743,000
GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
AFS Securities		0		0
GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		987,383,000		1,125,743,000
GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0		0
AFS Securities		0		0
State or local agency obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		160,045,000		170,263,000
State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		160,045,000
Fair Value				170,263,000
State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
U.S. obligations single-family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		1,341,918,000		482,982,000
U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		1,341,918,000
Fair Value				482,982,000
U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Private label MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		126,857,000		142,271,000
Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		126,857,000
Fair Value				142,271,000
Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset		0		0
Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0
Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		7,000		10,000
Derivative liabilities		120,000		41,000
Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
Derivative assets		425,630,000		228,996,000
Derivative liabilities		10,424,000		13,438,000
Fair Value		13,649,562,000		12,190,560,000
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		13,649,563,000		12,190,560,000
Derivative assets		425,630,000		228,996,000
Derivative liabilities		10,424,000		13,438,000
Total assets at fair value		14,287,827,000		12,633,564,000
Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for portfolio		5,743,000		5,240,000
REO - FV		290,000		403,000
Total assets at fair value		6,033,000		5,643,000
Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		425,623,000		228,986,000
Derivative liabilities		10,304,000		13,397,000
Estimate of Fair Value Measurement [Member] | U.S. Treasury obligations | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		3,525,693,000		5,232,493,000
Estimate of Fair Value Measurement [Member] | GSE obligations | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		212,634,000		214,008,000
AFS Securities		987,383,000		1,125,743,000
Estimate of Fair Value Measurement [Member] | State or local agency obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		160,045,000		170,263,000
Estimate of Fair Value Measurement [Member] | U.S. obligations single-family | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		1,341,918,000		482,982,000
Estimate of Fair Value Measurement [Member] | Private label MBS [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		126,857,000		142,271,000
Estimate of Fair Value Measurement [Member] | Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		7,000		10,000
Derivative liabilities		120,000		41,000
Single Family [Member] | GSE MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		1,945,971,000		1,881,037,000
Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		1,945,971,000
Fair Value				1,881,037,000
Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Single Family [Member] | Estimate of Fair Value Measurement [Member] | GSE MBS [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		1,945,971,000		1,881,037,000
Multifamily [Member] | GSE MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		5,561,696,000		3,155,771,000
Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		5,561,696,000
Fair Value				3,155,771,000
Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		0
Fair Value				0
Multifamily [Member] | Estimate of Fair Value Measurement [Member] | GSE MBS [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS Securities		$ 5,561,696,000		$ 3,155,771,000

[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, cash collateral including accrued interest held or placed with the same clearing agent and/or counterparties. Cash collateral posted including accrued interest was $1,088.5 million for September 30, 2023 and $1,166.4 million for December 31, 2022. Cash collateral received was $24.9 million for September 30, 2023 and $1.9 million for December 31, 2022

[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions and also cash collateral held and related interest accrued or placed by the Bank with the same clearing agent and/or counterparties.

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Estimated Fair Values (Level 3 Reconciliation) (Details) - Private label MBS [Member] - Fair Value, Recurring [Member] - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Purchases, issuances, sales, and settlements:
Change in unrealized gains (losses) for the period included in other comprehensive income (loss) for assets held at September 30, 2023	$ (4,659)	$ (224)	$ (8,461)	$ 1,494
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	134,685	162,201	142,271	194,425
(Provision) benefit for credit losses	(1,566)	(2,487)	(3,040)	(5,142)
Accretion of credit losses in interest income	1,660	2,534	4,939	6,955
Net unrealized gains (losses) on AFS in OCI	(4,659)	(5,861)	(8,461)	(17,015)
Purchases, issuances, sales, and settlements:
Settlements	(3,263)	(6,935)	(8,852)	(29,771)
Balance, end of period	126,857	149,452	126,857	149,452
Total amount of gains for the periods presented included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at September 30, 2023	$ 94	$ (5,861)	$ 1,899	$ (17,015)

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Commitments and Contingencies (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Off-balance Sheet Risks, with annual renewal option		$ 7,300,000	$ 2,200,000
Maximum Commitment Period		60 days
Other liabilities		$ 256,287	68,272
Rollover (weekly/monthly) advance Product
Loss Contingencies [Line Items]
Rollover -weekly/monthly advance product Outstanding		$ 10,400,000	9,600,000
Maximum
Loss Contingencies [Line Items]
Letter of Credit Renewal Period		5 years
Standby Letters of Credit Issuance Commitments [Member]
Loss Contingencies [Line Items]
Total		$ 900	0
Standby letters of credit outstanding (1) (2)
Loss Contingencies [Line Items]
Expiration Date Within One Year	[1],[2]	29,816,480
Expiration Date After One Year	[1],[2]	0
Total	[1],[2]	29,816,480	22,126,676
Other liabilities		5,600	4,200
Commitments to fund additional advances and BOB loans
Loss Contingencies [Line Items]
Expiration Date Within One Year		1,436
Expiration Date After One Year		0
Total		1,436	373
Commitments to purchase mortgage loans | Mortgage Receivable [Member]
Loss Contingencies [Line Items]
Expiration Date Within One Year		24,854	10,287
Expiration Date After One Year		0
Total		24,854
Unsettled consolidated obligation bonds, at par
Loss Contingencies [Line Items]
Expiration Date Within One Year		27,000	1,080,000
Expiration Date After One Year		0
Total		27,000
Unsettled consolidated obligation discount notes, at par [Member]
Loss Contingencies [Line Items]
Expiration Date Within One Year		576,000
Expiration Date After One Year		0
Total		$ 576,000	$ 15,370

[1] Excludes approved requests to issue future standby letters of credit of $0.9 million at September 30, 2023 and $0.0 million at December 31, 2022.

[2] Letters of credit in the amount of $7.3 billion at September 30, 2023 and $2.2 billion at December 31, 2022, have renewal language that permits the letter of credit to be renewed for an additional period with a maximum renewal period of approximately five years.