Trading Assets

6 Months Ended

Jun. 30, 2012

Trading Securities [Abstract]

Trading Assets [Text Block]

Trading Assets

The composition of trading assets was as follows.

($ in millions)	June 30, 2012		December 31, 2011
Mortgage-backed residential trading securities	$	—	$	608
Trading derivatives	—		14
Total trading assets	$	—	$	622