OTHER - Changes in Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 28, 2021	Mar. 29, 2020
Change in Accounting Estimate [Line Items]
Performance obligation satisfied in previous period	$ 492	$ 530
Ground Based Radar
Change in Accounting Estimate [Line Items]
Cumulative losses on development	250
EADGE-T
Change in Accounting Estimate [Line Items]
Cumulative losses on development	260
Warrior Capability Sustainment Program
Change in Accounting Estimate [Line Items]
Cumulative losses on development	140
Contracts Accounted for under Percentage of Completion
Change in Accounting Estimate [Line Items]
Increase in operating profit due to profit rate adjustments	495	465
Increase in net earnings due to profit rate adjustments	$ 391	$ 367
Increase in diluted earnings per common share due to profit rate adjustments (in dollars per share)	$ 1.40	$ 1.30

Estimated cumulative losses, including reserves, recorded since inception.

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- Definition

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+ References

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- Definition

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+ References

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- Definition

Increase (decrease) in operating profit due to favorable/unfavorable profit rate adjustments.

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- Definition

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

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- Definition

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=121604090&loc=SL108322424-203045

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