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OTHER - Contract Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Change in Accounting Estimate [Line Items]
Performance obligation satisfied in previous period	$ 231	$ 515	$ 1,000	$ 1,400
Classified Fixed-Price Incentive Fee Contract | Aeronautics
Change in Accounting Estimate [Line Items]
Performance growth costs	270		270
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	335	455	1,100	1,300
Increase in net earnings due to profit rate adjustments	$ 265	$ 359	$ 881	$ 1,000
Increase in diluted earnings per common share due to profit rate adjustments (in dollars per share)	$ 1.06	$ 1.35	$ 3.48	$ 3.89

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-4

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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
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12A

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