Credit Concentrations (Tables)

6 Months Ended

Jun. 30, 2011

Credit Concentrations (Tables) [Abstract]

Credit concentration, Government and Federal Agency Obligations

	As of
	June		December
$ in millions	2011		2010
U.S. government and federal agency obligations 1	$	94,283	$	96,350
% of total assets		10.1%		10.6%
Other sovereign obligations 1, 2	$	54,740	$	40,379
% of total assets		5.8%		4.4%

1.	Included in “Financial instruments owned, at fair value” and “Cash and securities segregated for regulatory and other purposes.”
2.	Principally consisting of securities issued by the governments of the United Kingdom, Japan and Germany as of June 2011, and the United Kingdom, Japan and France as of December 2010.

Credit concentration, Resale Agreements and Securities Borrowed

	As of
	June		December
in millions	2011		2010
U.S. government and federal agency obligations	$	106,982	$	121,366
Other sovereign obligations 1		97,628		73,357

1.   Principally consisting of securities issued by the governments of France and Germany.