OTHER - Changes in Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 27, 2022	Mar. 28, 2021
Change in Accounting Estimate [Line Items]
Performance obligation satisfied in previous period	$ 416	$ 492
Classified Fixed-Price Incentive Fee Contract \| Aeronautics
Change in Accounting Estimate [Line Items]
Performance growth costs	225
Classified Fixed-Price Incentive Fee Contract \| Rotary and Mission Systems
Change in Accounting Estimate [Line Items]
Cumulative losses on development	280
EADGE-T
Change in Accounting Estimate [Line Items]
Cumulative losses on development	260
Contracts Accounted for under Percentage of Completion
Change in Accounting Estimate [Line Items]
Increase in operating profit due to profit rate adjustments	405	495
Increase in net earnings due to profit rate adjustments	$ 320	$ 391
Increase in diluted earnings per common share due to profit rate adjustments (in dollars per share)	$ 1.19	$ 1.40

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

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- Definition

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+ References

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- Definition

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+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12A
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL108322424-203045

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