Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Common Stock [Member] Common Stock Entity Listings, Exchange [Axis] Exchange [Domain] NEW YORK STOCK EXCHANGE, INC. [Member] New York Stock Exchange NYSE CHICAGO, INC. [Member] NYSE Texas Document Information [Line Items] Document and Entity Information Document Type Document Annual Report Document Period End Date Document Transition Report Securities Act File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Auditor Name Auditor Firm ID Auditor Location Documents Incorporated by Reference [Text Block] CONSOLIDATED STATEMENTS OF INCOME Statement [Table] Product and Service [Axis] Product and Service [Domain] Product [Member] Products Service [Member] Services Statement Statement Revenues [Abstract] Sales: Revenue from Contract with Customer, Including Assessed Tax Net sales Sales Costs and Expenses [Abstract] Costs and operating expenses: Cost of Goods and Services Sold Cost of sales Cost of Sales Gross Profit Gross profit Accounts Receivable, Credit Loss Expense (Reversal) Provision for credit losses Provision for credit losses Selling, General and Administrative Expense Selling, general and administrative Selling, General and Administrative Income (Loss) from Equity Method Investments Loss (Earnings) from joint ventures Income (losses) from joint ventures Earnings (Loss) from joint ventures Sum of the net result for the period of deducting operating expenses from operating revenues, and the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Operating Income (Loss), Including Income (Loss) from Equity Method Investments Operating Income Operating income Business Combination, Bargain Purchase, Gain Recognized, Amount Bargain purchase gain Bargain purchase gain Gain (Loss) on Disposition of Property Plant Equipment Gain on sale of building Gain on sale of headquarters building Pension Expense (Reversal of Expense), Noncash Pension settlement charge Pension settlement charge Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant including exit costs. Gain (Loss) on Disposition of Business Including Exit Costs Gain (Loss) related to sale and exit of businesses Gain (loss) related to sale and exit of businesses, net Other Nonoperating Income (Expense) Other expense, net Interest Expense, Nonoperating Interest expense Investment Income, Interest Interest income Income (Loss) from Continuing Operations before Income Taxes and Minority Interest Income (loss) before income tax expense Income before income taxes Income Tax Expense (Benefit) Income tax expense Income Tax Expense (Benefit), Total Net income Net income Earnings Per Share, Basic [Abstract] Earnings per share Earnings Per Share, Basic Earnings per share - basic (in dollars per share) Earnings Per Share, Diluted Earnings per share - diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Shares used for earnings per share: Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted average shares outstanding - diluted (in shares) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Currency translation adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax Pension and post retirement plans, net of tax Other comprehensive income (loss) , net of tax Total other comprehensive income (loss) Total other comprehensive income, net of tax Other comprehensive income, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income CONSOLIDATED BALANCE SHEETS Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Restricted Cash and Cash Equivalents, Current Restricted cash Amount collected Receivables, Net, Current Accounts receivable, less allowances of $13.3 and $10.7, respectively Accounts receivable, net Contract with Customer, Asset, after Allowance for Credit Loss, Current Contract assets - current Contract assets Inventory, Net Inventories Total inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization [Abstract] Property, plant and equipment, at cost: Land Buildings and Improvements, Gross Buildings and improvements Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in the production process to produce goods and services and used in offices and stores. Examples include machinery, equipment, desks, chairs, and store fixtures. Equipment, Furniture and Fixtures, Gross Equipment and furniture and fixtures Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Property plant and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Property, Plant and Equipment, Net Property, Plant and Equipment, Net Assets, Noncurrent [Abstract] Other assets: Goodwill Goodwill, ending balance Goodwill, beginning balance Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Operating Lease, Right-of-Use Asset Operating lease right-of-use assets, net Equipment on long-term lease consists of rotable assets generally supporting for more than twelve months. Equipment on Long Term Lease Rotable assets, net Other Assets, Noncurrent Other non-current assets Other non-current assets Sum of the carrying amounts as of the balance sheet date of all assets excluding properties, plants and equipment, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Assets Noncurrent Excluding Property Plant And Equipment Total other assets Assets Total assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND EQUITY Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Contract with Customer, Liability, Current Deferred revenue - current Deferred revenue Other Accrued Liabilities, Current Other accrued liabilities Liabilities, Current Total current liabilities Long-Term Debt, Excluding Current Maturities Long-term debt Operating Lease, Liability, Noncurrent Operating lease liabilities Operating lease liabilities - non-current Deferred Income Tax Liabilities, Net Deferred tax liabilities Other Liabilities, Noncurrent Other liabilities Liabilities, Noncurrent Total noncurrent liabilities Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity: Preferred Stock, Value, Issued Preferred stock, $1.00 par value, authorized 250,000 shares; none issued Common Stock, Value, Issued Common stock, $1.00 par value, authorized 100,000,000 shares; issued 48,750,786 and 45,300,786 shares at cost, respectively Additional Paid in Capital, Common Stock Capital surplus Retained Earnings (Accumulated Deficit) Retained earnings Treasury Stock, Common, Value Treasury stock, 8,871,272 and 9,470,781 shares at cost, respectively Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Equity, Including Portion Attributable to Noncontrolling Interest Balance, ending Balance, beginning Total equity Liabilities and Equity Total liabilities and equity Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Treasury Stock, Common, Shares Treasury stock, shares CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Equity Components [Axis] Equity Component [Domain] Additional Paid-in Capital [Member] Capital Surplus Retained Earnings [Member] Retained Earnings Treasury Stock, Common [Member] Treasury Stock AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Stock Issued During Period, Value, New Issues Issuance of common stock Stock Issued During Period, Value, Stock Options Exercised Stock option activity Re-issuance of treasury stock upon exercise of stock options, net of shares withheld to satisfy statutory tax obligations Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Restricted stock activity Treasury Stock, Value, Acquired, Cost Method Repurchase of shares Repurchase of shares CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile income to net cash provided by operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Amortization of Debt Issuance Costs Amortization of financing costs Share-Based Payment Arrangement, Noncash Expense Stock-based compensation expense Deferred Income Tax Expense (Benefit) Deferred tax benefit Deferred Gain (Loss) on Disposition of Business Loss (Gain) on sale of business Losses on sale and exit of business The amount of imapairment charges on investments and the loss would be recognized when the sale price of the investment is less than the carrying value of the investment. Impairment And Loss On Sale of Investments Impairment charges and loss on sale of investments Increase (Decrease) in Operating Capital [Abstract] Changes in certain assets and liabilities, net of acquisitions: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Contract with Customer, Asset Contract assets Change in contract assets Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expenses, Other Prepaid expenses and other current assets The net change during the reporting period in the value of equipment on long-term lease used to generate rental income. Increase (Decrease) in Equipment on Long Term Lease Rotable assets supporting long-term programs Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Other Accrued Liabilities Accrued and other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Other Cash Provided by (Used in) Operating Activity, Continuing Operation Net cash provided by operating activities-continuing operations Cash Provided by (Used in) Operating Activity, Discontinued Operation Net cash used in operating activities-discontinued operations Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows provided by (used in) investing activities: Payments to Acquire Property, Plant, and Equipment Property, plant and equipment expenditures Payments to Acquire Businesses, Net of Cash Acquired Acquisitions, net of cash acquired Proceeds from Sale of Property, Plant, and Equipment Proceeds from sale of building and land Proceeds from Divestiture of Businesses, Net of Cash Divested Proceeds from sale of business Reduction in purchase price The cash outflow for expanding hangar facilities. Payments For Expanding Hangar Facilities Hangar expansion activity, net Payments for (Proceeds from) Other Investing Activities Joint venture and other investment activity Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows provided by (used in) financing activities: Proceeds from Issuance of Common Stock Proceeds from equity offering, net Proceeds from long-term borrowings Proceeds from long-term borrowings, net Proceeds from (Repayments of) Short-Term Debt Short-term borrowings (repayments), net Payments for Repurchase of Common Stock Purchase of treasury stock Amount of expense (reclass) for award under share-based payment arrangement. Allocated Share Based Compensation Expense Credit Compensation expenses Stock compensation activity Payment of Financing and Stock Issuance Costs Financing costs Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Increase (Decrease) in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, cash equivalents, and restricted cash at end of year Cash, cash equivalents, and restricted cash at beginning of year Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Summary of Significant Accounting Policies Acquisitions Business Combination Disclosure [Text Block] Acquisitions Goodwill and Other Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets, Net