Fair Value Measures and Disclosures (Details) - USD ($)
$ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
$ 23,458
|
$ 39,430
|
| Trading securities |
|
6,045,601
|
3,514,824
|
| Available-for-sale securities |
[1] |
18,928,831
|
19,308,192
|
| Debt Securities, Held-to-maturity |
[2] |
985,529
|
1,048,479
|
| Debt Securities, Held-to-maturity, Fair Value |
|
989,648
|
1,048,632
|
| Accrued interest receivable (Note 8) |
|
272,919
|
287,082
|
| Derivative assets |
|
7,914
|
37,898
|
| Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset |
[3] |
(394,432)
|
(310,987)
|
| Other Assets, Fair Value Disclosure |
|
25,817
|
24,997
|
| Mandatorily redeemable capital stock |
|
101,662
|
7,967
|
| Accrued interest payable |
|
395,385
|
356,354
|
| Derivative liabilities |
|
32,713
|
4,355
|
| Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset |
[3] |
(547,490)
|
(617,540)
|
| Real Estate Acquired Through Foreclosure |
|
8,497
|
4,582
|
| Fair Value, Inputs, Level 1 [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
23,458
|
39,430
|
| Interest-bearing Deposits, Fair Value Disclosure |
|
0
|
0
|
| Securities Purchased under Agreements to Resell, Fair Value Disclosure |
|
0
|
0
|
| Federal Funds Sold, Fair Value Disclosure |
|
0
|
0
|
| Trading securities |
|
0
|
0
|
| Available-for-sale securities |
|
0
|
0
|
| Debt Securities, Held-to-maturity, Fair Value |
|
0
|
0
|
| Federal Home Loan Bank Advances, Fair Value Disclosure |
|
0
|
0
|
| Loans Receivable, Fair Value Disclosure |
|
0
|
0
|
| Accrued interest receivable (Note 8) |
|
0
|
0
|
| Derivative assets |
|
0
|
0
|
| Other Assets, Fair Value Disclosure |
|
25,817
|
24,997
|
| Unsecured loans to members included in other assets |
|
0
|
0
|
| Deposits, Fair Value Disclosure |
|
0
|
0
|
| Mandatorily redeemable capital stock |
|
101,662
|
7,967
|
| Accrued interest payable |
|
0
|
0
|
| Derivative liabilities |
|
0
|
0
|
| Fair Value, Inputs, Level 1 [Member] | Consolidated Obligation Bonds [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Debt Instrument, Fair Value Disclosure |
|
0
|
0
|
| Fair Value, Inputs, Level 1 [Member] | Consolidated Obligation Discount Notes [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Short-term Debt, Fair Value |
|
0
|
0
|
| Fair Value, Inputs, Level 2 [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
0
|
0
|
| Interest-bearing Deposits, Fair Value Disclosure |
|
2,969,530
|
2,725,508
|
| Securities Purchased under Agreements to Resell, Fair Value Disclosure |
|
7,750,000
|
16,650,000
|
| Federal Funds Sold, Fair Value Disclosure |
|
9,030,000
|
7,409,000
|
| Trading securities |
|
6,045,601
|
3,514,824
|
| Available-for-sale securities |
|
18,928,831
|
19,308,192
|
| Debt Securities, Held-to-maturity, Fair Value |
|
989,648
|
1,048,632
|
| Federal Home Loan Bank Advances, Fair Value Disclosure |
|
44,261,227
|
50,905,437
|
| Loans Receivable, Fair Value Disclosure |
|
6,400,867
|
6,238,518
|
| Accrued interest receivable (Note 8) |
|
272,919
|
287,082
|
| Derivative assets |
|
402,346
|
348,885
|
| Other Assets, Fair Value Disclosure |
|
0
|
0
|
| Unsecured loans to members included in other assets |
|
0
|
0
|
| Deposits, Fair Value Disclosure |
|
2,490,036
|
2,195,861
|
| Mandatorily redeemable capital stock |
|
0
|
0
|
| Accrued interest payable |
|
395,385
|
356,354
|
| Derivative liabilities |
|
580,203
|
621,895
|
| Fair Value, Inputs, Level 2 [Member] | Consolidated Obligation Bonds [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Debt Instrument, Fair Value Disclosure |
|
59,939,359
|
57,669,223
|
| Fair Value, Inputs, Level 2 [Member] | Consolidated Obligation Discount Notes [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Short-term Debt, Fair Value |
|
27,310,125
|
40,186,405
|
| Fair Value, Inputs, Level 3 [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
0
|
0
|
| Interest-bearing Deposits, Fair Value Disclosure |
|
0
|
0
|
| Securities Purchased under Agreements to Resell, Fair Value Disclosure |
|
0
|
0
|
| Federal Funds Sold, Fair Value Disclosure |
|
0
|
0
|
| Trading securities |
|
0
|
0
|
| Available-for-sale securities |
|
0
|
0
|
| Debt Securities, Held-to-maturity, Fair Value |
|
0
|
0
|
| Federal Home Loan Bank Advances, Fair Value Disclosure |
|
0
|
0
|
| Loans Receivable, Fair Value Disclosure |
|
0
|
0
|
| Accrued interest receivable (Note 8) |
|
0
|
0
|
| Derivative assets |
|
0
|
0
|
| Other Assets, Fair Value Disclosure |
|
0
|
|
| Unsecured loans to members included in other assets |
|
44,629
|
44,633
|
| Deposits, Fair Value Disclosure |
|
0
|
0
|
| Mandatorily redeemable capital stock |
|
0
|
0
|
| Accrued interest payable |
|
0
|
0
|
| Derivative liabilities |
|
0
|
0
|
| Fair Value, Inputs, Level 3 [Member] | Consolidated Obligation Bonds [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Debt Instrument, Fair Value Disclosure |
|
0
|
0
|
| Fair Value, Inputs, Level 3 [Member] | Consolidated Obligation Discount Notes [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Short-term Debt, Fair Value |
|
0
|
0
|
| Carrying Value [Member} |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
23,458
|
39,430
|
| Interest-bearing Deposits, Fair Value Disclosure |
|
2,969,530
|
2,725,508
|
| Securities Purchased under Agreements to Resell, Fair Value Disclosure |
|
7,750,000
|
16,650,000
|
| Federal Funds Sold, Fair Value Disclosure |
|
9,030,000
|
7,409,000
|
| Trading securities |
|
6,045,601
|
3,514,824
|
| Available-for-sale securities |
|
18,928,831
|
19,308,192
|
| Debt Securities, Held-to-maturity |
|
985,529
|
1,048,479
|
| Federal Home Loan Bank Advances, Fair Value Disclosure |
|
44,215,047
|
50,820,106
|
| Loans Receivable, Fair Value Disclosure |
|
6,725,287
|
6,555,131
|
| Accrued interest receivable (Note 8) |
|
272,919
|
287,082
|
| Derivative assets |
|
7,914
|
37,898
|
| Other Assets, Fair Value Disclosure |
|
25,817
|
24,997
|
| Unsecured loans to members included in other assets |
|
44,629
|
44,633
|
| Deposits, Fair Value Disclosure |
|
2,490,119
|
2,195,932
|
| Mandatorily redeemable capital stock |
|
101,662
|
7,967
|
| Accrued interest payable |
|
395,385
|
356,354
|
| Derivative liabilities |
|
32,713
|
4,355
|
| Carrying Value [Member} | Consolidated Obligation Bonds [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Debt Instrument, Fair Value Disclosure |
|
60,190,861
|
57,885,556
|
| Carrying Value [Member} | Consolidated Obligation Discount Notes [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Short-term Debt, Fair Value |
|
27,317,808
|
40,185,289
|
| Fair Value [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Cash and due from banks |
|
23,458
|
39,430
|
| Interest-bearing Deposits, Fair Value Disclosure |
|
2,969,530
|
2,725,508
|
| Securities Purchased under Agreements to Resell, Fair Value Disclosure |
|
7,750,000
|
16,650,000
|
| Federal Funds Sold, Fair Value Disclosure |
|
9,030,000
|
7,409,000
|
| Trading securities |
|
6,045,601
|
3,514,824
|
| Available-for-sale securities |
|
18,928,831
|
19,308,192
|
| Debt Securities, Held-to-maturity, Fair Value |
|
989,648
|
1,048,632
|
| Federal Home Loan Bank Advances, Fair Value Disclosure |
|
44,261,227
|
50,905,437
|
| Loans Receivable, Fair Value Disclosure |
|
6,400,867
|
6,238,518
|
| Accrued interest receivable (Note 8) |
|
272,919
|
287,082
|
| Derivative assets |
|
7,914
|
37,898
|
| Other Assets, Fair Value Disclosure |
|
25,817
|
24,997
|
| Unsecured loans to members included in other assets |
|
44,629
|
44,633
|
| Deposits, Fair Value Disclosure |
|
2,490,036
|
2,195,861
|
| Mandatorily redeemable capital stock |
|
101,662
|
7,967
|
| Accrued interest payable |
|
395,385
|
356,354
|
| Derivative liabilities |
|
32,713
|
4,355
|
| Fair Value [Member] | Consolidated Obligation Bonds [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Debt Instrument, Fair Value Disclosure |
|
59,939,359
|
57,669,223
|
| Fair Value [Member] | Consolidated Obligation Discount Notes [Member] |
|
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
|
| Short-term Debt, Fair Value |
|
$ 27,310,125
|
$ 40,186,405
|
|
|