Segment Information (Tables) (Unaudited)

6 Months Ended

Jun. 30, 2011

SEGMENT INFORMATION [Abstract]

Sales and service revenues by segment

	Three Months Ended						Six Months Ended
	June 30						June 30
$ in millions	2011			2010			2011			2010
Sales and service revenues
Aerospace Systems	$	2,592		$	2,842		$	5,328		$	5,538
Electronic Systems		1,791			1,984			3,599			3,866
Information Systems		2,031			2,123			4,056			4,187
Technical Services		656			801			1,344			1,564
Intersegment eliminations		(510	)		(495	)		(1,033	)		(986	)
Total sales and service revenues	$	6,560		$	7,255		$	13,294		$	14,169

Reconciliation of segment operating income to total operating income

	Three Months Ended						Six Months Ended
	June 30						June 30
$ in millions	2011			2010			2011			2010
Operating income
Aerospace Systems	$	331		$	335		$	632		$	631
Electronic Systems		284			264			521			490
Information Systems		189			205			383			388
Technical Services		51			52			105			101
Intersegment eliminations		(71	)		(65	)		(136	)		(113	)
Total segment operating income		784			791			1,505			1,497
Non-segment factors affecting operating income
Unallocated corporate expenses		(38	)		(40	)		(48	)		(65	)
Net pension adjustment		99			1			202			3
Royalty income adjustment		(4	)		(2	)		(7	)		(6	)
Total operating income	$	841		$	750		$	1,652		$	1,429