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Status Entity Current Reporting Status Change in Contract with Customer, Liability [Abstract] Change in Contract with Customer, Liability [Abstract] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Nondeductible Goodwill, Divested Business Nondeductible Goodwill, Divested Business Nondeductible Goodwill, Divested Business Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Unbilled receivables, net Increase (Decrease) in Contract with Customer, Asset Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Common Stock, Shares, Issued Common Stock, Shares, Issued Cash and cash equivalents Cash and cash equivalents, beginning of year Cash and cash equivalents, end of period Cash and Cash Equivalents, at Carrying Value Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Space Systems [Member] Space Systems [Member] Space Systems reporting segment. Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Litigation Status [Axis] Litigation Status [Axis] Long-term debt, net of current portion of $42 for 2021 and $742 for 2020 Long-term Debt, Excluding Current Maturities Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Defined Benefit Plan, Actuarial Gain (Loss), Immediate Recognition as Component in Net Periodic Benefit (Cost) Credit Defined Benefit Plan, Actuarial Gain (Loss), Immediate Recognition as Component in Net Periodic Benefit (Cost) Credit Share Repurchase Program [Axis] Share Repurchase Program [Axis] Accounts receivable, net Increase (Decrease) in Accounts Receivable Total shareholders’ equity Beginning of period End of period Stockholders' Equity Attributable to Parent Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Liabilities of disposal group held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Total liabilities and shareholders’ equity Liabilities and Equity Loss Contingencies Loss Contingencies [Line Items] Accumulated other comprehensive loss Total accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Derivatives Derivative Assets (Liabilities), at Fair Value, Net INCOME TAXES Income Tax Disclosure [Text Block] Entity Address, City Or Town Entity Address, City or Town Accrued employee compensation Employee-related Liabilities, Current Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Fixed-price [Member] Fixed-price Contract [Member] General and administrative expenses General and Administrative Expense Accelerated share repurchase initial receipt shares Accelerated share repurchase initial receipt shares Accelerated share repurchase initial receipt shares Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Other operating activities, net Other Noncash Income (Expense) Product [Member] Product [Member] Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Equity Component [Domain] Equity Component [Domain] 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] Liabilities Liabilities [Abstract] Property, plant and equipment, net of accumulated depreciation of $6,471 for 2021 and $6,335 for 2020 Property, Plant and Equipment, Net Entity Tax Identification Number Entity Tax Identification Number Revenue from Contract with Customer Revenue from Contract with Customer [Policy Text Block] STOCK COMPENSATION PLANS AND OTHER COMPENSATION ARRANGEMENTS Share-based Payment Arrangement [Text Block] Net earnings Net earnings (from above) Net earnings Net Income (Loss) Attributable to Parent Deferred Compensation Cash-based Arrangements, Liability, Current and Noncurrent Deferred Compensation Cash-based Arrangements, Liability, Current and Noncurrent Other current liabilities Other Liabilities, Current Cash Performance Units Cash Performance Units [Member] Cash performance units. 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