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OTHER - Significant Risk of Program Losses (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Mar. 31, 2024 | Mar. 30, 2025
Change in Accounting Estimate [Line Items] |  |  |
Contract liabilities | $ 9,795 |  | $ 9,375
Missiles and Fire Control |  |  |
Change in Accounting Estimate [Line Items] |  |  |
Cumulative losses on development |  |  | 1,460
Reach-forward loss |  | $ 100 |
Additional reach-forward losses | $ 1,310 |  |
Contract liabilities |  |  | 1,330
Contracts Accounted for under Percentage of Completion |  |  |
Change in Accounting Estimate [Line Items] |  |  |
Cumulative losses on development |  |  | 100
Canadian Government |  |  |
Change in Accounting Estimate [Line Items] |  |  |
Contract assets |  |  | 935
Classified Fixed-Price Incentive Fee Contract |  |  |
Change in Accounting Estimate [Line Items] |  |  |
Cumulative losses on development |  |  | $ 825

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