Consolidated Obligations CO - Discount Notes Outstanding (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Federal Home Loan Bank, Consolidated Obligations, Discount Notes		$ 39,692,253	$ 27,681,169
Par value		$ 39,743,071	$ 27,733,146
Weighted Average Rate	[1]	1.10%	1.59%

[1] The CO discount notes' weighted-average rate represents a yield to maturity excluding concession fees.