Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 28, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill By Reporting Unit

The changes in the carrying amount of goodwill by reporting unit were as follows:

	Aerospace		Combat Systems			Information Technology		Mission Systems		Marine Systems		Total Goodwill
December 31, 2019 (a)	$	2,831	$	2,681		$	9,700	$	4,168	$	297	$	19,677
Acquisitions (b)	21		—			—		—		—		21
Other (c)	47		(31		)	—		4		—		20
June 28, 2020 (a)	$	2,899	$	2,650		$	9,700	$	4,172	$	297	$	19,718

(a)Goodwill in the Information Technology and Mission Systems reporting units is net of $536 and $1.3 billion of accumulated impairment losses, respectively.

(b)Includes a business acquired in our Aerospace segment and adjustments during the purchase price allocation period.

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

Intangible Assets

Intangible assets consisted of the following:

	Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount
	June 28, 2020							December 31, 2019
Contract and program     intangible assets (b)	$	3,715	$	(1,827	)	$	1,888	$	3,776	$	(1,779	)	$	1,997
Trade names and trademarks	486		(208		)	278		474		(195		)	279
Technology and software	129		(99		)	30		164		(126		)	38
Other intangible assets	159		(158		)	1		159		(158		)	1
Total intangible assets	$	4,489	$	(2,292	)	$	2,197	$	4,573	$	(2,258	)	$	2,315

(a) Changes in gross carrying amounts consist primarily of adjustments for acquired and divested intangible assets and foreign currency translation.

(b)

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