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Common Stock, Shares Authorized Common Stock, Shares Authorized Segment Reporting Information, Revenue for Reportable Segment [Abstract] Segment Reporting Information, Revenue for Reportable Segment [Abstract] Hedging Designation [Domain] Hedging Designation [Domain] Schedule of Income Tax Expense and Effective Income Tax Rates Schedule of Income Tax Expense and Effective Income Tax Rates [Table Text Block] Schedule of Income Tax Expense and Effective Income Tax Rates [Table Text Block] Total liabilities and shareholders’ equity Liabilities and Equity Fair Value, Recurring [Member] Fair Value, Recurring [Member] Standby Unused Letters Of Credit and bank guarantees Standby Unused Letters Of Credit and bank guarantees Financial instruments issued by a bank, on behalf of the company and in favor of a beneficiary, which substitutes the company's credit worthiness with that of the bank. Letters of Credit are usually issued in conformance with a set of governing rules. Other (expense) income Other Nonoperating Income (Expense) [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Maximum [Member] Maximum [Member] 2034 Notes 2034 Notes [Member] 2034 Notes Capital Expenditures Segment, Expenditure, Addition to Long-Lived Assets December 2023 Share Repurchase Program December 2023 Share Repurchase Program [Member] December 2023 Share Repurchase Program Sales percentage RevenuefromContractwithCustomerPercentage RevenuefromContractwithCustomerPercentage Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Change in Federal and foreign income tax expense Change in Federal and foreign income tax expense Change in Federal and foreign income tax expense Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Investment with IPO [Domain] Investment with IPO [Domain] Investment with IPO [Domain] Liabilities Liabilities [Abstract] 2054 Notes 2054 Notes [Member] 2054 Notes Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Earnings before income taxes Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Other non-current liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Environmental Contingency [Table] Site Contingency [Table] Loss Contingencies by Nature of Contingency [Axis] Loss Contingency Nature [Axis] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments [Member] Operating Segments [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Long-term Debt, Current Maturities Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount Defined benefit plan, contributions by Employer Defined Benefit Plan, Plan Assets, Contributions by Employer Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Name Measure Name Line of Credit Facility Line of Credit Facility [Abstract] Software and Software Development Costs [Member] Software and Software Development Costs [Member] Document Fiscal Period Focus Document Fiscal Period Focus Increase in Unrecognized Tax Benefits is Reasonably Possible Increase in Unrecognized Tax Benefits is Reasonably Possible Nature of Unrecognized Tax Benefits [Domain] Nature of Unrecognized Tax Benefits [Domain] Nature of Unrecognized Tax Benefits [Domain] Aeronautics Systems [Member] Aeronautics Systems [Member] Aeronautics Systems reporting segment. Award Timing Method Award Timing Method [Text Block] Commercial Paper, at Carrying Value Commercial Paper, at Carrying Value Award Type [Axis] Award Type [Axis] Total assets Assets Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Disposal Group, Not Discontinued Operation, Disposal Disclosures [Abstract] Environmental Matters Environmental Remediation Obligations [Abstract] Entity Address, City Or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Loss Contingency, Range of Possible Loss, Portion Not Accrued Loss Contingency, Range of Possible Loss, Portion Not Accrued Operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Marketable Securities [Line Items] Marketable Securities [Line Items] 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Stock, Shares Outstanding Changes in assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Backlog, Awards, and Related Adjustments [Table] Backlog, Awards, and Related Adjustments [Table] Backlog, Awards, and Related Adjustments PEO PEO [Member] Proceeds from Sale, Maturity and Collection of Investments Proceeds from Sale, Maturity and Collection of Investments Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] Accelerated Share Repurchases [Table] Accelerated Share Repurchases [Table] Pension and other 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[Line Items] Revenue, Major Customer [Line Items] Fair Value, Nonrecurring [Member] Fair Value, Nonrecurring [Member] Preferred Stock, Shares Issued Preferred Stock, Shares Issued Intangible Assets, Net (Excluding Goodwill) Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] B-21 Program LRIP Options 1-2 B-21 Program LRIP Options 1-2 [Member] B-21 Program LRIP Options 1-2 Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Derivative, Notional Amount Derivative, Notional Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Defined contribution plan, employer contributions Defined Contribution Plan, Employer Discretionary Contribution Amount December 2024 Share Repurchase Program December 2024 Share Repurchase Program [Member] December 2024 Share Repurchase Program Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Share Repurchase [Line Items] Equity, Class of Treasury Stock [Line Items] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Schedule of Share Repurchases, by Program [Table] Class of Treasury Stock [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] 2030 Notes 2030 Notes [Member] 2030 Notes Environmental 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10b5-1 Arrangement Adopted [Flag] Product [Member] Product [Member] Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Intersegment Sales [Member] Intersegment sales Intersegment Sales [Member] Intersegment Sales [Member] Other Performance Measure, Amount Other Performance Measure, Amount Inventory [Line Items] Inventory [Line Items] Entity Address, State Or Province Entity Address, State or Province Investments in Marketable Securities Marketable Securities, Policy [Policy Text Block] Dividends declared Dividends, Common Stock Pension and Other Postretirement Plans Pension and Other Postretirement Plans, Policy [Policy Text Block] Cash Units and Cash Performance Units Cash Units and Cash Performance Units [Member] Cash Units and Cash Performance Units [Member] Total current liabilities Liabilities, Current Other Current Liabilities [Member] Other Current Liabilities [Member] Increase in quarterly common stock dividend (percent) Increase (Decrease) in Stock Dividend, Percentage Increase (Decrease) in Stock Dividend, Percentage Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Change in Accounting Estimate [Line Items] Change in Accounting Estimate [Line Items] Fair Value of Long-term Debt Fair Value of Financial Instruments, Policy [Policy Text Block] Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Accumulated Other Comprehensive Income (Loss), Other Components, Net of Tax Accumulated Other Comprehensive Income (Loss), Other Components, Net of Tax Accumulated Other Comprehensive Income (Loss), Other Components, Net of Tax Cash dividends paid Payments of Ordinary Dividends, Common Stock Prepaid expenses and other current assets Other Assets, Current Paid-in capital Additional Paid in Capital, Common Stock Effect of Change in Accounting Estimate, Type [Axis] Effect of Change in Accounting Estimate, Type [Axis] 2025 Notes [Member] 2025 Notes [Member] 2025 Notes Net cash 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Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Payments of long-term debt Repayments of Long-Term Debt Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Commercial Paper, Average Rate Paid Commercial Paper, Average Rate Paid INVESTIGATIONS, CLAIMS AND LITIGATION Legal Matters and Contingencies [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Non-operating FAS pension benefit Non-Operating FAS Pension Benefit Non-Operating FAS Pension Benefit Equity [Abstract] Equity [Abstract] Revenue from Contract with Customer Revenue from Contract with Customer [Policy Text Block] Derivative Financial Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Marketable Securities Marketable Securities Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Maximum Loss Contingency Maximum Loss Contingency [Member] Maximum Loss Contingency IMS business Training services business [Member] Training services business Cash Units and Cash Performance Units Aggregate Payout Amount [Table Text Block] Cash Units and Cash Performance Units Aggregate Payout Amount [Table Text Block] [Table Text Block] for Cash Units and Cash Performance Units Aggregate Payout Amount [Table] 2026 Notes (7.75%) 2026 Notes (7.75%) [Member] 2026 Notes (7.75%) Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Deferred tax assets Deferred Income Tax Assets, Net Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Depreciation and amortization Depreciation, Depletion and Amortization Increase (Decrease) in Income Taxes Receivable Increase (Decrease) in Income Taxes Receivable NGI Program [Member] NGI Program [Member] NGI Program Other non-current assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Operating costs and expenses Cost of Product and Service Sold [Abstract] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Revenues Revenues Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fixed-price [Member] Fixed-Price Contract [Member] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Advance payments and billings in excess of costs incurred Contract with Customer, Liability, Current Segments [Axis] Segments [Axis] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets International(2) International Customer [Member] International Customer Inventory, Work in Process, Net of Reserves Inventory, Work in Process, Net of Reserves Exercise Price Award 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Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Line of Credit Facility, Covenant Compliance Line of Credit Facility, Covenant Compliance Components of Net Periodic Benefit Cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Restricted Microelectronics Restricted Microelectronics Portfolio [Member] Restricted Microelectronics Portfolio RETIREMENT BENEFITS Retirement Benefits [Text Block] FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] Kathy J. Warden [Member] Kathy J. Warden Credit Facility [Domain] Credit Facility [Domain] Accelerated Share Repurchases [Line Items] Accelerated Share Repurchases [Line Items] Shareholders’ equity Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Line 1 Entity Address, Address Line One 2026 Notes (7.875%) 2026 Notes (7.875%) [Member] 2026 Notes (7.875%) Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Operating lease liabilities Operating Lease, Liability, Noncurrent Unrecognized Tax Benefits, Period Increase (Decrease) Unrecognized Tax Benefits, Period Increase (Decrease) Effect of Tax Legislation Enacted [Axis] Effect of Tax Legislation Enacted [Axis] Effect of Tax Legislation Enacted Intersegment Costs [Member] Intersegment Costs [Member] Intersegment Costs Accelerated Share Repurchases, Settlement (Payment) or Receipt Accelerated Share Repurchases, Settlement (Payment) or Receipt Amortization of prior service credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Fair Value as of Grant Date Award Grant Date Fair Value Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Unallowable State Taxes and Transactions Costs from Divestiture Unallowable State Taxes and Transactions Costs from Divestiture Unallowable State Taxes and Transactions Costs from Divestiture Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 2022 Repurchase Program - Completion Date 2022 Repurchase Program - Completion Date 2022 Repurchase Program - Completion Date Net periodic pension and OPB income Net periodic benefit cost (benefit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Surety Bond Outstanding Surety Bond Outstanding Surety Bond Outstanding Investment with IPO [Axis] Investment with IPO [Axis] Investment with IPO Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Shares granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period U.S. Government Cost Claims Government Cost Claims [Policy Text Block] Government Cost Claims and Contingencies as it relates to government contracting Document Quarterly Report Document Quarterly Report Segment, Reconciliation of Other Items from Segments to Consolidated Segment, Reconciliation of Other Items from Segments to Consolidated [Table Text Block] Deferred income taxes Deferred Income Taxes and Tax Credits Long-term Debt, Fair Value Long-Term Debt, Fair Value Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table] Change in Unrecognized Tax Benefit, Reasonably Possible [Table] Revision of Prior Period [Domain] Revision of Prior Period [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Unrecognized Tax Benefits Related to Methods of Accounting - 451(b) Unrecognized Tax Benefits Related to Methods of Accounting - 451(b) Unrecognized Tax Benefits Related to Methods of Accounting - 451(b) Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Interest cost Defined Benefit Plan, Interest Cost B-21 Program LRIP Options 3-5 B-21 Program LRIP Options 3-5 [Member] B-21 Program LRIP Options 3-5 Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Revenue from Sale of Equipment to a Customer Revenue from Sale of Equipment to a Customer Revenue from Sale of Equipment to a Customer Service [Member] Service [Member] Interest expense Interest and Debt Expense Interest and Debt Expense Other Noncurrent Liabilities [Member] Other Noncurrent Liabilities [Member] Restatement Determination Date: Restatement Determination Date [Axis] Disclosure Text Block Supplement [Abstract] Disclosure Text Block Supplement [Abstract] Stock compensation Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Accelerated Share Repurchase Final Receipt Accelerated Share Repurchase Final Receipt (Shares) Accelerated Share Repurchase Final Receipt (Shares) Other financing activities, net Proceeds from (Payment for) Other Financing Activity Revenue, Contract Type [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] GEM 63 Program GEM 63 Program [Member] GEM 63 Program Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Leasehold Improvements [Member] Leasehold Improvements [Member] Other operating activities, net Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Michael A. Hardesty [Member] Michael A. 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Comprehensive Income (Loss), Net of Tax [Abstract] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Inventoried costs, net Increase (Decrease) in Inventories Inventoried costs, net Inventory, Net Minimum [Member] Minimum [Member] Contracts Accounted for under Percentage of Completion [Member] Contracts Accounted for under Percentage of Completion [Member] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Accumulated Depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Company Selected Measure Name Company Selected Measure Name 2025 Five Year Term 2025 Five Year Term [Member] 2025 Five Year Term Accrual for Environmental Remediation Costs Accrual for Environmental Loss Contingencies Equity Security, FV-NI, Contractual Sale Restriction, Nature of Restriction and Circumstance for Lapse Equity Security, FV-NI, Contractual Sale Restriction, Nature of Restriction and Circumstance for Lapse Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued and outstanding Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accelerated Share Repurchases, Adjustment to Recorded Amount Accelerated Share Repurchases, Adjustment to Recorded Amount Trade accounts payable Accounts Payable, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Effect of Tax Legislation Enacted [Domain] Effect of Tax Legislation Enacted [Domain] Effect of Tax Legislation Enacted [Domain] All Executive Categories All Executive Categories [Member] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Inventory, Finished Goods, Net of Reserves Inventory, Finished Goods, Net of Reserves Common stock, $1 par value; 800,000,000 shares authorized; issued and outstanding: 2026—142,033,476 and 2025—141,997,194 Common Stock, Value, Issued COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Derivatives Derivative Assets (Liabilities), at Fair Value, Net Decrease in Unrecognized Tax Benefits is Reasonably Possible Decrease in Unrecognized Tax Benefits is Reasonably Possible Weighted-average diluted shares outstanding, in millions Weighted Average Number of Shares Outstanding, Diluted Commitments and Contingencies Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Environmental Remediation Expense, Recovery Environmental Remediation Expense, Recovery Revenue from External Customers by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Nonvested Restricted Stock Shares Activity [Table Text Block] Schedule of Nonvested Share Activity [Table Text Block] B-21 loss provision Loss Contingency, Loss in Period Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Long-Term Debt Long-Term Debt [Text Block] Document Transition Report Document Transition Report Investment with IPO Investment with IPO [Member] Investment with IPO Financial Arrangements Other Commitments [Abstract] Proceeds from (Repayments of) Commercial Paper Proceeds from (Repayments of) Commercial Paper Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Backlog Reduction due to Divestiture Backlog Reduction due to Divestiture Backlog Reduction due to Divestiture Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount INCOME TAXES Income Tax Disclosure [Text Block] Diluted earnings per share Earnings Per Share, Diluted [Abstract] OBBBA [Member] OBBBA [Member] One Big Beautiful Bill Act Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Commercial Paper, Maximum Borrowing Capacity (Prior) Commercial Paper, Maximum Borrowing Capacity (Prior) Commercial Paper, Maximum Borrowing Capacity (Prior) Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] IRC Section 451(b) IRC Section 451(b) [Member] IRC Section 451(b) Average Cost Per Share Shares Acquired, Average Cost Per Share Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation Document Type Document Type Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Marketable Securities [Table] Marketable Securities [Table] Accelerated Share Repurchases, Final Price Paid Per Share Accelerated Share Repurchases, Final Price Paid Per Share Employer contributions to retirement plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Product and Service [Axis] Product and Service [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Accelerated Share Repurchases, Date [Axis] Accelerated Share Repurchases, Date [Axis] Debt Instruments [Abstract] Debt Instruments [Abstract] All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Effect of Change in Accounting Estimate, Type [Domain] Effect of Change in Accounting Estimate, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect, Continuing Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect, Continuing Operation Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Amount Authorized Share Repurchase Program, Authorized, Amount Loss Contingency Accrual Loss Contingency Accrual Accelerated Share Repurchases, Cash or Stock Settlement Accelerated Share Repurchases, Cash or Stock Settlement Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Space Systems [Member] Space Systems [Member] Space Systems reporting segment. Payments of employee taxes withheld from share-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Stock Repurchased and Retired During Period, Value Treasury Stock, Value, Acquired, Par Value Method Effect of Tax Legislation Enacted During the Period [Domain] Effect of Tax Legislation Enacted During the Period [Domain] Effect of Tax Legislation Enacted During the Period [Domain] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Sales, operating costs and expenses, and operating income by segment Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Geographical [Axis] Geographical [Axis] Change in other, net Other Comprehensive Income (Loss), Other Components, Net of Tax Other Comprehensive Income (Loss), Other Components, Net of Tax Nature of Uncertainty [Axis] Nature of Uncertainty [Axis] Total operating costs and expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Line of Credit Outstanding Long-Term Line of Credit Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Asia/Pacific Asia Pacific [Member] Diluted earnings per share Diluted earnings per share Earnings Per Share, Diluted Accelerated Share Repurchase Initial Receipt (Shares) Accelerated Share Repurchase Initial Receipt (Shares) Accelerated Share Repurchase Initial Receipt (Shares) Increase (Decrease) in Other Accrued Liabilities Increase (Decrease) in Other Accrued Liabilities Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Title of 12(b) Security Title of 12(b) Security FAS/CAS operating adjustment FAS/ CAS operating adjustment FAS/ CAS operating adjustment Environmental Remediation Range of Future Costs [Line Items] Environmental Remediation Range of Future Costs [Line Items] [Line Items] for Environmental Remediation Range of Future Costs, the amount accrued within the range and the deferred costs expected to be recoverable through overhead charges on US Government contracts [Table] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] Noncash Investing and Financing Activities Related Text Noncash Investing and Financing Activities Related Text Common stock repurchased Stock Repurchased and Retired During Period, Value Stock Repurchased and Retired During Period, Value Cash Performance Units Cash Performance Units [Member] Cash performance units. Increase (Decrease) in Contract with Customer, Liability Increase (Decrease) in Contract with Customer, Liability Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Sentinel EMD phase [Member] Sentinel EMD phase [Member] Sentinel EMD phase California Franchise Tax Board California Franchise Tax Board [Member] Accelerated Share Repurchases, Date [Domain] Accelerated Share Repurchases, Date [Domain] Award Timing Disclosures [Line Items] Schedule of Inventory, Current [Table Text Block] Schedule of Inventory, Current [Table Text Block] Service cost Defined Benefit Plan, Service Cost Measurement Frequency [Domain] Measurement Frequency [Domain] Accrued employee compensation Employee-related Liabilities, Current EARNINGS PER SHARE, SHARE REPURCHASES AND DIVIDENDS ON COMMON STOCK Equity [Text Block] Fiscal Period Policy Fiscal Period, Policy [Policy Text Block] Restricted Space [Member] Restricted Space [Member] Restricted Space Net earnings Net earnings (from above) Net earnings Net Income (Loss) Attributable to Parent Intersegment OM Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Line of Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio Line of Credit Facility, Covenant Terms Property, plant and equipment, net of accumulated depreciation of $9,854 for 2026 and $9,648 for 2025 Property, Plant and Equipment, Net Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Common stock repurchases Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable, net Increase (Decrease) in Accounts Receivable Entity Current Reporting Status Entity Current Reporting Status Customer [Axis] Customer [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Operating income Operating Income (Loss) Retained earnings Retained Earnings (Accumulated Deficit) Share Repurchases Class of Treasury Stock [Table Text Block] Corporate [Member] Corporate Segment [Member] Adjustments to reconcile to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Foreign Exchange Forward [Member] Foreign Exchange Forward [Member] Debt Instrument, Covenant Compliance Debt Instrument, Covenant Compliance Environmental Remediation [Table Text Block] Environmental Remediation [Table Text Block] Environmental Remediation Range of Possible Future Costs, Accrued Costs within that range and Deferred Cost expected to be recovered [Table Text Block] Noncash or Part Noncash Acquisition, Fixed Assets Acquired Noncash or Part Noncash Acquisition, Fixed Assets Acquired Current Fiscal Year End Date Current Fiscal Year End Date IRS Notice 2026-7 [Member] IRS Notice 2026-7 [Member] IRS Notice 2026-7 Income Tax Reconciliation Deductions FDDEII Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Minimum Loss Contingency Minimum Loss Contingency [Member] Minimum Loss Contingency Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Mission Systems [Member] Mission Systems [Member] Mission Systems reporting segment. Inventoried costs, net Inventory, Net of Allowances, Customer Advances and Progress Billings Retirement Plan Type [Axis] Retirement Plan Type [Axis] Other, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Cost Reimbursable Cost Reimbursable [Member] Cost Reimbursable contract type Variable Rate [Domain] Variable Rate [Domain] US Government US Government [Member] US Government [Member] Unrecognized Tax Benefits Unrecognized Tax Benefits Site Contingency [Line Items] Site Contingency [Line Items] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Shares Retired Treasury Stock, Shares, Retired Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Amendment Flag Amendment Flag Commercial Paper, Maximum Borrowing Capacity (New) Commercial Paper, Maximum Borrowing Capacity Commercial Paper, Maximum Borrowing Capacity OPB Other Postretirement Benefits Plan [Member] Termination Date Trading Arrangement Termination Date Effect of New Tax Legislation [Line Items] Effect of New Tax Legislation [Line Items] Effect of New Tax Legislation [Line Items] Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Unbilled receivables, net Increase (Decrease) in Contract with Customer, Asset Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Inventory, Raw Materials, Net of Reserves Inventory, Raw Materials, Net of Reserves Corporate Alternative Minimum Tax Corporate Alternative Minimum Tax [Member] Corporate Alternative Minimum Tax Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Weighted-average common shares outstanding, in millions Weighted Average Number of Shares Outstanding, Basic Amount remaining under authorization for share repurchases Share Repurchase Program, Remaining Authorized, Amount Cost of Sales Cost of Product and Service Sold Change in Contract with Customer, Liability [Abstract] Change in Contract with Customer, Liability [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Thomas H. Jones [Member] Thomas H. Jones Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Common Stock, Shares, Issued Common Stock, Shares, Issued Effect of New Tax Legislation [Table] Effect of New Tax Legislation [Table] Effect of New Tax Legislation [Table] Nature of Unrecognized Tax Benefits [Axis] Nature of Unrecognized Tax Benefits [Axis] Nature of Unrecognized Tax Benefits Accounting Estimates Use of Estimates, Policy [Policy Text Block] Trading Arrangement: Trading Arrangement [Axis] Income taxes payable, net Increase (Decrease) in Income Taxes Payable Total Shareholder Return Amount Total Shareholder Return Amount Restricted Stock Rights and Restricted Performance Stock Rights Grant Date Aggregate Fair Value Restricted Stock Rights and Restricted Performance Stock Rights Grant Date Aggregate Fair Value Restricted Stock Rights and Restricted Performance Stock Rights Grant Date Aggregate Fair Value Loss Contingencies Loss Contingencies [Line Items] Subsequent Events Subsequent Events [Text Block] Change in cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Revenue from External Customers by Contract Type Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Increase (Decrease) in Earnings before Income Taxes Increase (Decrease) in Earnings before Income Taxes Increase (Decrease) in Income before Income Taxes Total liabilities Liabilities Marketable Security, Unrealized Gain (Loss) Marketable Security, Unrealized Gain (Loss) Capital Expenditures Incurred but Not yet Paid Capital Expenditures Incurred but Not yet Paid Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Components of net periodic benefit cost Schedule of Costs of Retirement Plans [Table Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Other current liabilities Other Liabilities, Current Pension and other postretirement benefit plan liabilities Liability, Defined Benefit Plan, Noncurrent Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Variable Rate [Axis] Variable Rate [Axis] Extinguishment of Debt, Amount Extinguishment of Debt, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Share Repurchases - Notes to Table Share Repurchases Table Abstract Share Repuchase Table Footnotes, detail tags Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Increase (Decrease) in Deferred Income Taxes Increase (Decrease) in Deferred Income Taxes Common stock Common Stock [Member] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]