Segment Information (Tables)

12 Months Ended

Dec. 31, 2013

The following table presents sales and operating income by segment:



	Year Ended December 31
$ in millions	2013			2012			2011
Sales
Aerospace Systems		$10,014			$ 9,977			$ 9,964
Electronic Systems	7,149			6,950			7,372
Information Systems	6,596			7,356			7,921
Technical Services	2,843			3,019			3,193
Intersegment eliminations	(1,941		)	(2,084		)	(2,038		)
Total sales	24,661			25,218			26,412
Operating income
Aerospace Systems	1,215			1,218			1,217
Electronic Systems	1,226			1,187			1,070
Information Systems	633			761			766
Technical Services	262			268			260
Intersegment eliminations	(256		)	(258		)	(258		)
Total segment operating income	3,080			3,176			3,055
Reconciliation to operating income:
Net FAS/CAS pension adjustment	168			132			400
Unallocated corporate expenses	(119		)	(168		)	(166		)
Other	(6		)	(10		)	(13		)
Total operating income		$ 3,123			$3,130			$ 3,276

Intersegment sales and operating income before eliminations were as follows:



	Year Ended December 31
$ in millions	2013					2012					2011
	Sales		Operating Income			Sales		Operating Income			Sales		Operating Income
Intersegment sales and operating income
Aerospace Systems		$ 149			$ 18		$ 171			$ 20		$ 134		$	18
Electronic Systems	629			125		607			110		649			131
Information Systems	504			63		682			78		687			68
Technical Services	659			50		624			50		568			41
Total		$1,941			$256		$2,084			$258		$2,038			$258


(1)	Corporate assets principally consist of cash and cash equivalents and deferred tax assets.



	Capital Expenditures						Depreciation and Amortization
$ in millions	2013		2012		2011		2013		2012		2011
Aerospace Systems		$198		$154		$184		$210		$196		$200
Electronic Systems	76		84		121		134		139		144
Information Systems	27		40		45		81		100		121
Technical Services	3		3		1		4		4		4
Corporate	60		50		141		66		71		75
Total from continuing operations		$364		$331		$492		$495		$510		$544