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OTHER - Changes in Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 25, 2022	Sep. 26, 2021	Sep. 25, 2022	Sep. 26, 2021
Change in Accounting Estimate [Line Items]
Performance obligation satisfied in previous period	$ 515	$ 616	$ 1,400	$ 1,600
Classified Fixed-Price Incentive Fee Contract | Aeronautics
Change in Accounting Estimate [Line Items]
Revised estimated remaining costs	25
Performance growth costs			250
Classified Fixed-Price Incentive Fee Contract | Rotary and Mission Systems
Change in Accounting Estimate [Line Items]
Cumulative losses on development	280		280
Contracts Accounted for under Percentage of Completion
Change in Accounting Estimate [Line Items]
Increase in operating profit due to profit rate adjustments	455	580	1,300	1,500
Increase in net earnings due to profit rate adjustments	$ 359	$ 458	$ 1,000	$ 1,200
Increase in diluted earnings per common share due to profit rate adjustments (in dollars per share)	$ 1.35	$ 1.65	$ 3.89	$ 4.14

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- Definition

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- Definition

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Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12A
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL108322424-203045

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