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Information on Business Segments - Summary of Financial Information for Each Business Segment, Intersegment Sale, Depreciation and Capital Expenditures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Capital expenditures	$ 1,685	$ 1,691	$ 1,670
PP&E depreciation and software amortization	1,559	1,430	1,404
Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	1,454	1,462	1,371
PP&E depreciation and software amortization	1,132	1,032	989
Operating Segments | Aeronautics
Segment Reporting Information [Line Items]
Capital expenditures	593	535	461
PP&E depreciation and software amortization	452	416	383
Operating Segments | Missiles and Fire Control
Segment Reporting Information [Line Items]
Capital expenditures	265	252	253
PP&E depreciation and software amortization	183	175	160
Operating Segments | Rotary and Mission Systems
Segment Reporting Information [Line Items]
Capital expenditures	230	220	266
PP&E depreciation and software amortization	227	220	245
Operating Segments | Space
Segment Reporting Information [Line Items]
Capital expenditures	366	455	391
PP&E depreciation and software amortization	270	221	201
Corporate assets
Segment Reporting Information [Line Items]
Capital expenditures	231	229	299
PP&E depreciation and software amortization	$ 427	$ 398	$ 415

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
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-Name Accounting Standards Codification
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