Trading Securities

6 Months Ended

Jun. 30, 2011

Trading Securities, Balance Sheet, Reported Amounts [Abstract]

Trading Securities (and Certain Trading Assets) Disclosure [Text Block]

Trading Securities

Major Security Types.

Table 3.1 - Trading Securities by Major Security Types (in thousands)

	June 30, 2011		December 31, 2010
	Fair Value		Fair Value
U.S. Treasury obligations	$	1,228,499	$	1,904,834
Government-sponsored enterprises *	5,874,286		4,495,516
Mortgage-backed securities:
Other U.S. obligation residential mortgage-backed securities **	2,268		2,431
Total	$	7,105,053	$	6,402,781

*	Consists of either debt securities issued and effectively guaranteed by Federal Home Loan Mortgage Corporation (Freddie Mac) or Federal National Mortgage Association (Fannie Mae) which have the backing of the U.S. government, although they are not obligations of the U.S. government, and/or debt securities issued by Federal Farm Credit Bank (FFCB).
**	Consists of Government National Mortgage Association (Ginnie Mae) mortgage-backed securities.

Table 3.2 - Net Losses on Trading Securities (in thousands)

	Six Months Ended June 30,
	2011			2010
Net (losses) gains on trading securities held at period end	$	(6,708	)	$	12
Net losses on securities matured during the period	(3,886		)	(229		)
Net losses on trading securities	$	(10,594	)	$	(217	)