GOODWILL (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amounts of Goodwill

The assignment of goodwill and changes in the carrying amount of goodwill, by business segment, for fiscal 2021 and 2020 were as follows:

(In millions)	Integrated Mission Systems		Space & Airborne Systems		Communication Systems		Aviation Systems		Total
Balance at January 3, 2020	$	5,768	$	5,131	$	4,243	$	4,859	$	20,001
Goodwill decrease from divestitures(1)	—		(2)		(9)		(530)		(541)
Impairment of goodwill	—		(5)		—		(475)		(480)
Currency translation adjustments	(10)		(4)		1		(1)		(14)
Other (including adjustments to previously estimated fair value of assets acquired and liabilities assumed)(2)	741		112		(82)		(861)		(90)
Balance at January 1, 2021	6,499		5,232		4,153		2,992		18,876
Goodwill decrease from divestitures(1)	—		—		—		(564)		(564)
Impairment of goodwill	—		—		—		(62)		(62)
Currency translation adjustments	(14)		(30)		—		(17)		(61)
Balance at December 31, 2021	$	6,485	$	5,202	$	4,153	$	2,349	$	18,189

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(1)During fiscal 2021, we completed the divestiture of six businesses (Narda-Miteq business, ESSCO business, CPS business, military training business, Electron Devices business and VSE disposal group) and derecognized $564 million of goodwill as part of determining the gain or loss on the sales of these businesses. During fiscal 2020, we completed the divestiture of three businesses (airport security and automation business, Applied Kilovolts and Analytical Instrumentation business and EOTech business) and derecognized $541 million of goodwill as part of determining the gain or loss on the sales of these businesses. See Note 3: Business Divestitures and Asset Sales in these Notes for additional information regarding completed divestitures.

(2)See Note 4: Business Combination in these Notes for additional information regarding adjustments to previously estimated fair values of assets acquired and liabilities assumed.