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Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Contract payments received to date Contract Payments Received To Date Contract payments received to date. 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and Mission Systems [Member] Adjustments to reconcile net earnings to net cash provided by operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] 5.25% due 2033 Five Point Two Five Percent Notes Due Twenty Thirty Three [Member] Five Point Two Five Percent Notes Due Twenty Thirty Three Award Timing Disclosures [Line Items] Commercial paper borrowings Commercial Paper, at Carrying Value Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] 4.15% due 2053 Four Point One Five Percent Notes Due Twenty Fifty Three [Member] Four Point One Five Percent Notes Due Twenty Fifty Three Contracts Accounted for under Percentage of Completion Contracts Accounted for under Percentage of Completion [Member] Ultimate health care trend rate Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Income taxes Income Tax, Policy [Policy Text Block] Amortization of finite lived intangible assets in 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Work-in-process Inventory, Work in Process, Gross Postretirement benefit plans Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] 5.20% due 2055 Five Point Two Zero Percent Notes Due Twenty Fifty Five [Member] Five Point Two Zero Percent Notes Due Twenty Fifty Five Insider Trading Arrangements [Line Items] Other notes with rates from 4.85% to 8.50%, due 2024 to 2041 Other Notes, Four Point Eight Five Percent To Nine Point One Three Percent Due Two Thousand Twenty Two To Two Thousand Forty One [Member] Other Notes, Four Point Eight Five Percent To Eight Point Five Zero Percent Due Two Thousand Twenty Three To Two Thousand Forty One [Member] Severance and other charges Severance and other charges Severance and Restructuring Costs Severance and Restructuring Costs Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Amortization of finite lived intangible assets in 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Adjustment to Compensation, Amount Adjustment to Compensation Amount Auditor Name Auditor Name Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Capitalized software Internal Use Software, Policy [Policy Text Block] Cumulative losses on development Estimated Cumulative Losses Estimated cumulative losses, including reserves, recorded since inception. Entity Central Index Key Entity Central Index Key Settlements Defined Benefit Plan, Benefit Obligation, Payment for Settlement Intangible asset amortization expense Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Finite-lived, gross carrying amount Finite-Lived Intangible Assets, Gross Non-service FAS pension income (expense) Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Salaries, benefits and payroll taxes Employee-related Liabilities, Current Net Sales Revenue Benchmark [Member] Name Trading Arrangement, Individual Name Contract assets, progress payments Government Contract Receivable, Progress Payment Offset Net other comprehensive income (loss) recognized during the period, tax Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax 4.07% due 2042 Four Point Zero Seven Percent Notes Due Two Thousand Forty Two [Member] Four Point Zero Seven Percent Notes Due Two Thousand Forty Two [Member] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Plan with benefit obligations equal to plan assets Defined Benefit Plan, Plan With Benefit Obligations Equal To Plan Assets Defined Benefit Plan, Plan With Benefit Obligations Equal To Plan Assets Interest payments excluding capitalized interest Interest Paid, Excluding Capitalized Interest, Operating Activities Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period [Domain] Long-term debt, net Long-Term Debt, Excluding Current Maturities Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Deferred tax liabilities Deferred Tax Liabilities, Net Weighted average common shares outstanding for diluted computations (in shares) Weighted Average Number of Shares Outstanding, Diluted Pension settlement charge, net of tax of $314 million in 2022 and $355 million in 2021 Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Company Selected Measure Amount Company Selected Measure Amount Commingled equity funds Defined Benefit Plan, Commingled Equity Funds [Member] Defined Benefit Plan, Commingled Equity Funds [Member] Five Year Revolving Credit Facility Five Year Revolving Credit Facility [Member] Five Year Revolving Credit Facility [Member] 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Total assets Assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Share Repurchase Program [Axis] Share Repurchase Program [Axis] International International [Member] International [Member] Unallocated items Segment Reconciling Items [Member] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Construction in progress Construction in Progress [Member] Materials, spares and supplies Inventory, Raw Materials and Supplies, Gross Recognition of net actuarial losses Accumulated Defined Benefits Plans Adjustment, Net Actuarial Loss Attributable To Parent [Member] Accumulated Defined Benefits Plans Adjustment, Net Actuarial Loss Attributable To Parent [Member] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Qualified Defined  Benefit Pension Plans Qualified defined benefit pension plans Pension Plan [Member] Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Asset Allocation Ranges Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Accelerated Share Repurchase Agreement Accelerated Share Repurchase Agreement [Member] Accelerated Share Repurchase Agreement [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Loan, net Loan, Net [Member] Loan, Net Debt Instrument [Line Items] Debt Instrument [Line Items] Weighted average common shares outstanding for basic computations (in shares) Weighted Average Number of Shares Outstanding, Basic 3.10% due 2023 Three Point One Zero Percent Notes Due Twenty Twenty Three[Member] Three Point One Zero Percent Notes Due Twenty Twenty Three[Member] Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Real estate funds Real Estate [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Net sales Revenues [Abstract] Total cost of sales Cost of Revenue Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Federal income tax expense (benefit): Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Foreign derived intangible income deduction Effective Income Tax Rate Reconciliation, FDII, Amount Schedule of Long-term Debt Schedule of Debt [Table Text Block] Noncontrolling Interests in Subsidiary Noncontrolling Interest [Member]