Goodwill and Identifiable Intangible Assets (Tables)

3 Months Ended

Mar. 29, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Goodwill by Segment

The table below presents the changes in goodwill by segment for the quarter period ended March 29, 2013.

	C3ISR		Electronic Systems			P&LS			NSS			Consolidated Total
	(in millions)
Balance at December 31, 2012	$	797	$	4,804		$	1,175		$	968		$	7,744
Foreign currency translation adjustments(1)		—		(18	)		(5	)		(1	)		(24	)
Balance at March 29, 2013	$	797	$	4,786		$	1,170		$	967		$	7,720

⁽¹⁾  The decreases in goodwill presented in the Electronic Systems, P&LS and NSS segments were primarily due to the strengthening of the U.S. dollar against the Euro, Canadian dollar and British pound during the quarter ended March 29, 2013.

Identifiable Intangible Assets

Identifiable Intangible Assets. Information on the Company’s identifiable intangible assets that are subject to amortization is presented in the table below.

	March 29, 2013								December 31, 2012
	Weighted Average Amortization Period		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in years)						(in millions)
Customer contractual relationships		19	$	459	$	232	$	227	$	460	$	225	$	235
Technology		11		164		100		64		164		98		66
Other		17		27		14		13		27		14		13
Total		17	$	650	$	346	$	304	$	651	$	337	$	314

Amortization Expense

Amortization expense recorded by the Company for its identifiable intangible assets is presented in the table below.

	First Quarter Ended
	March 29, 2013		March 30, 2012
Amortization Expense	$	9	$	11

Estimated Amortization Expense

Based on gross carrying amounts at March 29, 2013, the Company’s estimate of amortization expense for identifiable intangible assets for the years ending December 31, 2013 through 2017 are presented in the table below.

	Year Ending December 31,
	2013		2014		2015		2016		2017
	(in millions)
Estimated amortization expense	$	38	$	42	$	37	$	31	$	29