Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net income	$ 153,674	$ 235,978
Adjustments to reconcile net income to net cash provided by(used in) operating activities:
Depreciation and amortization	(36,491)	(43,187)
Net change in derivative and hedging activities	(281,783)	(356,493)
Other adjustments	7,148	3,660
Net change in:
Trading securities	2,344,102	(2,629,125)
Accrued interest receivable	88,926	24,378
Other assets	(203)	(3,699)
Accrued interest payable	(111,764)	(4,458)
Other liabilities	(9,368)	7,792
Net cash provided by (used in) operating activities	2,154,241	(2,765,154)
Interest-bearing deposits (including $(2,118) and $59 (to) from other FHLBanks for mortgage loan program)	(2,118)	59
Net change in:
Interest-bearing deposits (including $(2,118) and $59 (to) from other FHLBanks for mortgage loan program)	370,279	513,383
Securities purchased under agreements to resell	850,000	(800,000)
Federal funds sold	1,820,000	(2,195,000)
AFS securities:
Proceeds	1,756,311	1,674,435
Purchases	(643,733)	(4,188,255)
HTM securities:
Proceeds	1,155,297	1,522,679
Purchases	(728,986)	(871,744)
Advances:
Repaid	318,795,536	817,451,571
Originated	(288,839,498)	(804,957,652)
Mortgage loans held for portfolio:
Proceeds	1,073,253	389,771
Purchases	(1,067,877)	(768,024)
Other investing activities, net	(295)	2,856
Net cash provided by investing activities	34,540,287	7,774,020
FINANCING ACTIVITIES
Net change in deposits	411,903	176,370
Net proceeds from issuance of consolidated obligations:
Discount notes	201,685,063	358,760,329
Bonds	35,760,761	52,331,314
Payments for maturing and retiring consolidated obligations
Discount notes	(210,792,258)	(367,478,383)
Bonds	(60,971,215)	(48,318,155)
Proceeds from issuance of capital stock	2,706,902	4,863,370
Payments for repurchase/redemption of capital stock	(3,842,070)	(5,156,630)
Payments for repurchase/redemption of mandatorily redeemable capital stock	(159,980)	(41,505)
Cash dividends paid	(137,194)	(203,107)
Partial Recovery Of Prior Capital Distribution To Financing Corporation	8,541
Net cash provided by (used in) financing activities	(35,329,547)	(5,066,397)
Net increase (decrease) in cash and due from banks	1,364,981	(57,531)
Cash and due from banks at beginning of the period	21,490	71,320
Cash and due from banks at end of the period	1,386,471	13,789
Supplemental disclosures:
Interest paid	795,385	1,830,611
AHP payments	23,791	18,484
Capital stock reclassified to mandatorily redeemable capital stock	$ 39,457	$ 361,117