Basis of Presentation (Table) (Unaudited)

6 Months Ended

Jun. 30, 2011

BASIS OF PRESENTATION [Abstract]

Accumulated Other Comprehensive Loss

	June 30,			December 31,
$ in millions	2011			2010
Cumulative translation adjustment	$	27
Net unrealized gain on marketable securities and cash flow hedges, net of tax expense of $2 as of June 30, 2011, and $3 as of December 31, 2010		3		$	5
Unamortized benefit plan costs, net of tax benefit of $1,425 as of June 30, 2011, and $1,801 as of December 31, 2010		(2,203	)		(2,762	)
Total accumulated other comprehensive loss	$	(2,173	)	$	(2,757	)