Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Interest income
Advances (Note 6)	$ 115,504	$ 154,204	$ 274,200	$ 303,844
Interest-bearing deposits	555	1,238	1,521	2,067
Federal funds sold	1,601	2,804	4,147	4,347
Available-for-sale securities (Note 5)	7,521	9,784	16,160	15,548
Held-to-maturity securities (Note 4)
Long-term securities	69,275	91,809	140,331	190,443
Mortgage loans held-for-portfolio (Note 7)	15,842	16,615	31,328	33,356
Total interest income	210,298	276,454	467,687	549,605
Interest expense
Consolidated obligations-bonds (Note 10)	103,215	146,659	217,492	301,572
Consolidated obligations-discount notes (Note 10)	6,593	11,956	14,409	21,613
Deposits (Note 8)	358	963	828	1,854
Mandatorily redeemable capital stock (Note 11)	469	676	1,213	2,171
Cash collateral held and other borrowings (Note 18)	22		31
Total interest expense	110,657	160,254	233,973	327,210
Net interest income before provision for credit losses	99,641	116,200	233,714	222,395
Provision for credit losses on mortgage loans	429	196	2,202	906
Net interest income after provision for credit losses	99,212	116,004	231,512	221,489
Other income (loss)
Service fees and other	1,479	1,129	2,735	2,174
Instruments held at fair value - Unrealized gains (losses)(Note 16)	(6,141)	(4,248)	(5,401)	(12,667)
Total OTTI losses	(166)	(202)	(166)	(4,075)
Net amount of impairment losses reclassified (from) to Accumulated other comprehensive loss	26	(1,068)	(344)	(595)
Net impairment losses recognized in earnings	(140)	(1,270)	(510)	(4,670)
Net realized and unrealized gains (losses) on derivatives and hedging activities (Note 15)	6,644	(11,425)	71,214	(11,788)
Net realized gain from sale of available-for-sale securities and redemption of held-to-maturity securities (Note 4 and 5)	17		17	708
Losses from extinguishment of debt and other	(3,647)	(643)	(55,540)	(869)
Total other income (loss)	(1,788)	(16,457)	12,515	(27,112)
Other expenses
Operating	7,650	7,435	15,180	13,777
Compensation and Benefits	14,047	12,917	53,028	25,811
Finance Agency and Office of Finance	3,113	1,993	6,510	4,411
Total other expenses	24,810	22,345	74,718	43,999
Income before assessments	72,614	77,202	169,309	150,378
Affordable Housing Program	5,975	6,371	13,945	12,497
REFCORP	13,328	14,166	31,073	27,576
Total assessments	19,303	20,537	45,018	40,073
Net income	$ 53,311	$ 56,665	$ 124,291	$ 110,305
Basic earnings per share (Note 13)	$ 1.24	$ 1.20	$ 2.85	$ 2.29
Cash dividends paid per share	$ 1.11	$ 1.05	$ 2.57	$ 2.46