Consolidated Obligations CO - Discount Notes (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Federal Home Loan Bank, Consolidated Obligations, Discount Notes		$ 27,681,169	$ 33,065,822
Par value		$ 27,733,146	$ 33,147,065
Weighted Average Rate	[1]	1.59%	2.37%

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