Segment Information (Tables) (Unaudited)

9 Months Ended

Sep. 30, 2011

SEGMENT INFORMATION [Abstract]

Sales and service revenues by segment

		$00,000			$00,000		$00,000		$00,000			$00,000
	Three Months Ended September 30							Nine Months Ended September 30
$ in millions	2011			2010				2011			2010
Sales and service revenues
Aerospace Systems		$2,572			$2,706				$  7,900			$  8,244
Electronic Systems		1,905			1,874				5,504			5,740
Information Systems		1,955			2,123				6,011			6,310
Technical Services		680			871				2,024			2,435
Intersegment eliminations		(500	)		(503	)			(1,533	)		(1,489	)
Total sales and service revenues		$6,612			$7,071				$19,906			$21,240

Reconciliation of segment operating income to total operating income

		$00,000			$00,000		$00,000		$00,000			$00,000
	Three Months Ended September 30							Nine Months Ended September 30
$ in millions	2011			2010				2011			2010
Operating income
Aerospace Systems		$304			$303				$   936			$    934
Electronic Systems		293			261				814			751
Information Systems		187			190				570			578
Technical Services		55			56				160			157
Intersegment eliminations		(62	)		(50	)			(198	)		(163	)
Total segment operating income		777			760				2,282			2,257
Non-segment factors affecting operating income
Unallocated corporate expenses		(48	)		(34	)			(96	)		(99	)
Net pension adjustment		100			(1	)			302			2
Royalty income adjustment		(4	)		(2	)			(11	)		(8	)
Total operating income		$825			$723				$2,477			$2,152