Acquisitions, Intangible Assets And Goodwill (Tables)

3 Months Ended

Apr. 01, 2012

Acquisitions, Intangible Assets And Goodwill [Abstract]

Schedule Of Intangible Assets

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	December 31, 2011							April 1, 2012
Contract and program intangible assets*	$	2,393	$	(1,060	)	$	1,333	$	2,401	$	(1,105	)	$	1,296
Trade names and trademarks		477		(70	)		407		495		(77	)		418
Technology and software		175		(110	)		65		176		(115	)		61
Other intangible assets		174		(166	)		8		174		(166	)		8
Total intangible assets	$	3,219	$	(1,406	)	$	1,813	$	3,246	$	(1,463	)	$	1,783

* Consists of acquired backlog and probable follow-on work and related customer relationships.  

Schedule Of Amortization Lives (In Years) Of Intangible Assets

	Range of Amortization Life	Weighted Average Amortization Life
Contract and program intangible assets	7-30		17
Trade names and trademarks	30		30
Technology and software	7-13		11
Other intangible assets	7-15		11
Total intangible assets			20

Schedule Of Annual Amortization Expense Over The Next Five Years

2013	$	183
2014		162
2015		156
2016		127
2017		114

Schedule Of Changes In The Carrying Amount Of Goodwill By Reporting Unit

	Aerospace		Combat Systems		Marine Systems		Information Systems  and Technology		Total Goodwill
December 31, 2011	$	2,644	$	2,839	$	229	$	7,864	$	13,576
Acquisitions (a)		13		57		—		7		77
Other (b)		65		32		—		9		106
April 1, 2012	$	2,722	$	2,928	$	229	$	7,880	$	13,759

(a) Includes adjustments during the purchase price allocation period.

(b) Consists primarily of adjustments for foreign currency translation.