Acquisitions and Divestitures, Goodwill, and Intangible Assets (Tables)

6 Months Ended

Jul. 03, 2016

The changes in the carrying amount of goodwill by reporting unit for the six months ended July 3, 2016, were as follows:



	Aerospace		Combat Systems		Information Systems and Technology		Marine Systems		Total Goodwill
December 31, 2015 (a)	$	2,542	$	2,591	$	6,021	$	289	$	11,443
Acquisitions (b)	19		—		5		—		24
Other (c)	44		56		5		—		105
July 3, 2016	$	2,605	$	2,647	$	6,031	$	289	$	11,572

(a)Goodwill on December 31, 2015, in the Information Systems and Technology reporting unit is net of $2 billion of accumulated impairment losses.

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

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

Intangible assets consisted of the following:



	Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount
	July 3, 2016							December 31, 2015
Contract and program intangible assets (b)	$	1,636	$	(1,255	)	$	381	$	1,626	$	(1,214	)	$	412
Trade names and trademarks	466		(136		)	330		455		(127		)	328
Technology and software	120		(98		)	22		119		(96		)	23
Other intangible assets	154		(154		)	—		154		(154		)	—
Total intangible assets	$	2,376	$	(1,643	)	$	733	$	2,354	$	(1,591	)	$	763


(a)	Change in gross carrying amounts consists primarily of adjustments for foreign currency translation and acquired intangible assets.


(b)	Consists of acquired backlog and probable follow-on work and associated customer relationships.