Goodwill and Identifiable Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill and Identifiable Intangible Assets (Tables) [Abstract]

Goodwill

				Government						Electronic			Consolidated
	C3ISR			Services			AM&M			Systems			Total
	(in millions)
Balance at December 31, 2010	$	868		$	2,285		$	1,172		$	4,405		$	8,730
Business acquisitions(1)		3			—			2			12			17
Foreign currency translation adjustments(2)		1			—			(8	)		(5	)		(12	)
Segment reclassification(3)		(5	)		(94	)		—			99			—
Balance at September 30, 2011	$	867		$	2,191		$	1,166		$	4,511		$	8,735

(1)	The increase in goodwill for the Electronic Systems segment is primarily due to the acquisition of ComHouse. See Note 4 for further discussion regarding this acquisition.
(2)	The decrease in goodwill presented in the AM&M and Electronic Systems segments was due primarily to the strengthening of the U.S. dollar against the Canadian dollar during the year-to-date period ended September 30, 2011.
(3)	As a result of re-alignments of business units in the Company’s management and organizational structure as discussed in Note 2, goodwill was reclassified on a relative fair value basis among the C3ISR, Government Services and Electronic Systems segments during the quarter ended April 1, 2011.

Identifiable Intangible Assets

	September 30, 2011								December 31, 2010
	Weighted
	Average		Gross				Net		Gross				Net
	Amortization		Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Period		Amount		Amortization		Amount		Amount		Amortization		Amount
	(in years)		(in millions)
Customer contractual relationships		23	$	585	$	237	$	348	$	584	$	205	$	379
Technology		11		147		84		63		145		72		73
Other		15		29		12		17		28		10		18
Total		21	$	761	$	333	$	428	$	757	$	287	$	470

Amortization expense

	Third Quarter Ended				Year-to-Date Ended
	September 30,		September 24,		September 30,		September 24,
	2011		2010		2011		2010
	(in millions)
Amortization expense	$	15	$	18	$	45	$	45

Estimated amortization expense

	Year Ending December 31,
	2011		2012		2013		2014		2015
	(in millions)
Estimated amortization expense	$	61	$	54	$	43	$	44	$	39