Statements of Condition (Parenthetical) - USD ($) shares in Thousands, $ in Thousands		Mar. 31, 2024		Dec. 31, 2023
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[1]	$ 9,131,043		$ 10,247,585
Debt Securities, Available-for-Sale, Restricted		$ 806,963		$ 819,794
Debt Securities, Available-for-Sale, Restriction Type [Extensible Enumeration]		Asset Pledged as Collateral [Member]		Asset Pledged as Collateral [Member]
Debt Securities, Held-to-maturity, Fair Value		$ 16,244,785		$ 16,576,613
Common Stock, Par or Stated Value Per Share		$ 100
Common Stock, Shares, Issued		46,790		48,459
Common Stock, Shares, Outstanding		46,790		48,459
Mortgage Purchase Program [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest		$ 331		$ 316
Fair Value Option Election
Advances, Fair Value Disclosure		239,652		214,035
Fair Value Option Election | Consolidated Obligation Bonds [Member]
Consolidated Obligations, Bonds		12,315,622		20,657,254
Fair Value Option Election | Discount Notes [Member]
Consolidated Obligations, Discount Notes		8,330,273		14,085,003
Estimate of Fair Value Measurement [Member]
Debt Securities, Held-to-maturity, Fair Value		16,244,785		16,576,613
Estimate of Fair Value Measurement [Member] | Consolidated Obligation Bonds [Member]
Consolidated Obligations, Bonds		91,055,639	[2]	90,983,204	[3]
Estimate of Fair Value Measurement [Member] | Discount Notes [Member]
Consolidated Obligations, Discount Notes		$ 18,237,262	[4]	$ 23,689,599	[5]

[1] Amortized cost of available-for-sale securities includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of (in thousands) $46,948 and $47,969 at March 31, 2024 and December 31, 2023, respectively.

[2] Includes (in thousands) $12,315,622 of Consolidated Obligation Bonds recorded under the fair value option at March 31, 2024.

[3] Includes (in thousands) $20,657,254 of Consolidated Obligation Bonds recorded under the fair value option at December 31, 2023.

[4] Includes (in thousands) $8,330,273 of Consolidated Obligation Discount Notes recorded under the fair value option at March 31, 2024.

[5] Includes (in thousands) $14,085,003 of Consolidated Obligation Discount Notes recorded under the fair value option at December 31, 2023.