OTHER - Contract Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 25, 2023	Jun. 26, 2022	Jun. 25, 2023	Jun. 26, 2022
Change in Accounting Estimate [Line Items]
Performance obligation satisfied in previous period	$ 359	$ 481	$ 792	$ 897
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	365	455	780	860
Increase in net earnings due to profit rate adjustments	$ 288	$ 359	$ 616	$ 679
Increase in diluted earnings per common share due to profit rate adjustments (in dollars per share)	$ 1.14	$ 1.35	$ 2.42	$ 2.53

Contract Costs, Amount in Excess of Contract Price, Loss Recognized

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Estimated cumulative losses, including reserves, recorded since inception.

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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
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12A

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