Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill

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

	Aerospace		Marine Systems		Combat Systems		Information Technology		Mission Systems		Technologies		Total Goodwill
December 31, 2019 (a)	$	2,831	$	297	$	2,681	$	9,700	$	4,168	$	—	$	19,677
Acquisitions (b)	72		—		65		—		—		—		137
Other (c)	162		—		40		46		(9)		—		239
Change in reporting unit composition (d)	—		—		—		(9,746)		(4,159)		13,905		—
December 31, 2020 (e)	3,065		297		2,786		—		—		13,905		20,053
Acquisitions (b)	33		—		54		—		—		—		87
Other (c)	(59)		—		(13)		—		—		30		(42)
December 31, 2021 (e)	$	3,039	$	297	$	2,827	$	—	$	—	$	13,935	$	20,098

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

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

(c)Consisted primarily of adjustments for foreign currency translation. Activity for the year ended December 31, 2020, also included an allocation of goodwill to operations classified as held for sale.

(d)Effective December 31, 2020, we reorganized our Information Technology and Mission Systems operating segments into a single Technologies segment. This reorganization similarly changed the composition of our reporting units. Accordingly, goodwill of the Information Technology and Mission Systems reporting units was combined and assigned to the Technologies reporting unit.

(e)Goodwill in the Technologies reporting unit was net of $1.8 billion of accumulated impairment losses.

Schedule of 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
December 31	2021						2020
Contract and program intangible assets (b)	$	3,239	$	(1,547)	$	1,692	$	3,399	$	(1,600)	$	1,799
Trade names and trademarks	501		(238)		263		516		(229)		287
Technology and software	70		(48)		22		134		(106)		28
Other intangible assets	64		(63)		1		161		(158)		3
Total intangible assets	$	3,874	$	(1,896)	$	1,978	$	4,210	$	(2,093)	$	2,117

(a)Changes in gross carrying amounts consisted primarily of adjustments for write-offs of fully amortized intangible assets, acquired intangible assets and foreign currency translation.

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

Schedule of Amortization Lives (In Years) of Intangible Assets

The amortization lives (in years) of our intangible assets on December 31, 2021, were as follows:

Intangible Asset	Range of Amortization Life
Contract and program intangible assets	7-30
Trade names and trademarks	30
Technology and software	5-15
Other intangible assets	7

Schedule of Expected Annual Amortization Expense Over the Next Five Years of Intangible Assets

We expect to record annual amortization expense over the next five years as follows:

Year Ended December 31	Amortization Expense
2022	$	200
2023	185
2024	173
2025	166
2026	161