ACCOUNTING STANDARDS UPDATES [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Text Block] 2. ACCOUNTING STANDARDS UPDATES FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract] Fair Value Of Financial Instruments Abstract. Fair Value Disclosures [Text Block] 9. FAIR VALUE OF FINANCIAL INSTRUMENTS SEGMENT INFORMATION [Abstract] Segment Information Abstract. Segment Reporting Disclosure [Text Block] 6. SEGMENT INFORMATION EARNINGS PER SHARE [Abstract] GOODWILL AND OTHER PURCHASED INTANGIBLE ASSETS [Abstract] Goodwill And Other Purchased Intangible Assets Abstract. Goodwill and Intangible Assets Disclosure [Text Block] 8. GOODWILL AND OTHER PURCHASED INTANGIBLE ASSETS INVESTIGATIONS, CLAIMS AND LITIGATION [Abstract] Schedule of Loss Contingencies by Contingency [Text Block] 10. INVESTIGATIONS, CLAIMS AND LITIGATION COMMITMENTS AND CONTINGENCIES [Abstract] Commitments And Contingencies Abstract. Commitments and Contingencies Disclosure [Text Block] 11. COMMITMENTS AND CONTINGENCIES RETIREMENT BENEFITS [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] 12. RETIREMENT BENEFITS STOCK COMPENSATION PLANS [Abstract] Stock Compensation Plans (Amounts in Paragraphs) Disclosure of Compensation Related Costs, Share-based Payments [Text Block] 13. STOCK COMPENSATION PLANS INCOME TAXES [Abstract] Income Tax Disclosure [Text Block] 7. INCOME TAXES Common Stock, Dividends, Per Share, Declared Quarterly common stock dividend Cash dividends declared per share Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Statement [Table] Schedule of Share Repurchases, by Program [Table] Statement [Line Items] Comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent Other comprehensive income (loss) Other comprehensive income Net Income (Loss) Attributable to Parent Net earnings Net earnings Net earnings (from above) Weighted-average diluted shares outstanding, in millions Weighted Average Number of Shares Outstanding, Diluted Diluted Earnings Per Share Diluted Earnings Per Share Diluted earnings per share Earnings Per Share, Diluted Diluted earnings per share Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Discontinued operations Income (Loss) from Continuing Operations, Per Diluted Share Diluted earnings per share from continuing operations Continuing operations Basic Earnings Per Share Basic Earnings Per Share Basic earnings per share Earnings Per Share, Basic Basic earnings per share Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Discontinued operations Discontinued operations Income (Loss) from Continuing Operations, Per Basic Share Basic earnings per share from continuing operations Continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Earnings from discontinued operations, net of tax Earnings from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Earnings from continuing operations Income Tax Expense (Benefit) Federal and foreign income taxes Total federal and foreign income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Earnings (loss) from continuing operations before income taxes Earnings from continuing operations before income taxes Other Nonoperating Income (Expense) Other, net Other (expense) income Interest and Debt Expense Interest expense Operating income (loss) Operating income Total operating income Cost of Sales and Service Revenues General and Administrative Expense General and administrative expenses Cost of Services Cost of service revenues Cost of Goods Sold Cost of product sales Sales and Service Revenues Abstract Sales Revenue, Net Sales and service revenues Total sales and service revenues Total sales and service revenues Service revenues Sales Revenue, Services, Net Sales Revenue, Goods, Net Product sales Shareholders' Equity [Abstract] Shareholders' Equity Assets [Abstract] Assets Assets Total assets Total assets Other assets Other Assets, Noncurrent Miscellaneous other assets Deferred Tax Assets, Net, Noncurrent Long-term deferred tax assets Defined Benefit Plan, Assets for Plan Benefits, Noncurrent Non-current assets Pension and post-retirement plan assets Intangible Assets, Net (Excluding Goodwill) Net carrying amount Other purchased intangibles, net of accumulated amortization of $1,622 in 2011 and $1,613 in 2010 Goodwill Goodwill Property, Plant and Equipment, Net Property, plant, and equipment, net of accumulated depreciation of $3,781 in 2011 and $3,712 in 2010 Property, plant, and equipment, net Assets, Current Total current assets Current assets Other Assets, Current Prepaid expenses and other current assets Deferred Tax Assets, Net, Current Deferred tax assets Inventory for Long-term Contracts or Programs Inventoried costs, net Total inventoried costs, net Inventoried costs, net of progress payments Receivables, Long-term Contracts or Programs Total accounts receivable, net Receivables, Long-term Contracts or Programs, Total Accounts receivable, net of progress payments Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Total liabilities and shareholders' equity Liabilities and Stockholders' Equity Stockholders' Equity Attributable to Parent At end of period At beginning of period Total equity Total shareholders' equity Accumulated Other Comprehensive Income (Loss), Net of Tax Total accumulated other comprehensive loss Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained earnings Common Stock, Value, Issued Common stock, $1 par value; 800,000,000 shares authorized; issued and outstanding: 2011 - 292,599,308; 2010 - 290,956,752 Commitments and Contingencies (Note 11) Commitments and Contingencies Total liabilities Liabilities Other Liabilities, Noncurrent Long-term liabilities Other long-term liabilities Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Non-current liability Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent, Total Pension and post-retirement plan liabilities Long-term Debt and Capital Lease Obligations Long-term debt, net of current portion Long-term debt, net of current portion Liabilities, Current Total current liabilities Current liabilities Other current liabilities Other Liabilities, Current Other current liabilities Advance payments and billings in excess of costs incurred Customer Advances, Current Accrued employees' compensation Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Trade accounts payable Accounts Payable, Current, Total Accounts Payable, Current Long-term Debt and Capital Lease Obligations, Current Current portion of long-term debt and notes payable Current portion of long-term debt Notes payable to banks Notes Payable, Current, Total Notes Payable, Current Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Accumulated depreciation on property, plant, and equipment Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization Accumulated amortization on other purchased intangibles Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Condensed Consolidated Statements of Financial Position [Abstract] Condensed Consolidated Statements of Cash Flows [Abstract] Additional Paid in Capital, Common Stock Paid-in capital Financing Activities Investing Activities Net Cash Provided By Used In Operating Activities Abstract Operating Activities Increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Payments for Repurchase of Common Stock Common stock repurchases Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Payments of Dividends, Common Stock Dividends paid Proceeds from Issuance or Sale of Equity Proceeds from exercises of stock options and issuances of common stock Proceeds from (Repayments of) Short-term Debt Net borrowings under lines of credit Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Payments for (Proceeds from) Other Investing Activities Other investing activities, net Payments to Acquire Property, Plant, and Equipment Additions to property, plant, and equipment Total capital expenditures Capital Expenditures Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Cash used in discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Cash provided by (used in) continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total Uses of Cash Continuing Operations Payments for Operating Activities Total uses of cash - continuing operations Payments for Other Operating Activities Other cash payments Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefits from stock-based compensation Income Taxes Paid, Net Income taxes paid, net of refunds received Interest paid, net of interest received Interest paid, net of interest received The amount of cash paid for interest on money borrowed, including capitalized interest , net of interest received on loans and other debt instruments during the current period. Payments to Suppliers and Employees Cash paid to suppliers and employees Cash Received From Customers [Abstract] Cash received from customers Cash received from customers abstract. Total sources of cash - continuing operations Proceeds from Operating Activities Other cash receipts Proceeds from Other Operating Activities Collections on billings Proceeds from Customers Progress payments Proceeds from Customers for Progress Payments Non-Cash Investing and Financing Activities Increase (decrease) in Other non-cash transactions, net Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other Retiree benefits Increase (Decrease) in Pension and Postretirement Obligations, Total Increase (Decrease) in Pension and Postretirement Obligations Income taxes payable Increase (Decrease) in Accrued Income Taxes Payable Increase (Decrease) in Deferred Income Taxes Deferred income taxes Accounts payable and accruals Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase in (Increase) decrease in Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Inventories Inventoried costs, net Increase (Decrease) in Accounts Receivable Accounts receivable, net Share-based Compensation Stock-based compensation Amortization Amortization of assets Depreciation Depreciation Reconciliation of Net Earnings to Net Cash Provided by Operating Activities Adjustments to reconcile to net cash provided by (used in) operating activities Condensed Consolidated Statements of Changes in Shareholders' Equity [Abstract] Common Stock Common Stock Paid-in Capital Paid-in Capital Retained Earnings Retained Earnings Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss Dividends, Common Stock Dividends declared Stock Issued During Period, Value, Share-based Compensation Employee stock awards and options Stock Repurchased and Retired During Period, Value Common stock repurchased Statement, Equity Components [Axis] Equity Component [Domain] Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding, in millions Uses of Cash - Continuing Operations Effective Income Tax Rate, Continuing Operations Effective tax rate on income from continuing operations Income Taxes (Numeric) [Abstract] Income Taxes (Amounts in paragraphs) Income Taxes. Cost of Sales and Service Revenues Sales and Service Revenues Reconciliation of Net Earnings to Net Cash Used in Operating Activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Investing Activities Financing Activities Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Payments of long-term debt Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease And Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease Change in unrealized gain on marketable securities and cash flow hedges, net of tax Adjustment for the net of tax effect of the gross appreciation or the gross loss in value of the total unsold securities at the end of an accounting period as well as the net of tax effect change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. The change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses. Change in cumulative translation adjustment Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Change in unamortized benefit plan costs, net of tax Other Comprehensive Income, Defined Benefit Plans Adjustment, Net of Tax Change in unrecognized benefit plan costs Change in unamortized benefit plan costs, net of tax Other Comprehensive Income (Loss), Net of Tax Other comprehensive income, net of tax Commitments and Contingencies (Details) [Abstract] Commitments and Contingencies (Details) [Abstract] Commitments and Contingencies Details Abstract. Commitments and Contingencies Numeric Abstract Commitments and Contingencies (Amounts in Paragraphs) Commitments and Contingencies Numeric Abstract. Standby Unused Letters Of Credit Unused standby letters of credit Financial instruments issued by a bank, on behalf of the company and in favor of a beneficiary, which substitutes the bank's credit worthiness for that of the company. Letters of Credit are usually issued in conformance with a set of governing rules. Bank Guarantee Bank guarantees Financial instruments issued by a bank, on behalf of the company and in favor of a beneficiary, which substitutes the bank's credit worthiness for that of the company. Surety Bond Outstanding Surety bonds outstanding Financial instruments issued by an insurance company, on behalf of the company and in favor of a beneficiary, which substitutes the insurance company's credit worthiness for that of the company. Accrued Environmental Loss Contingencies, Current Environmental liabilities recorded in other current liabilities Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Cumulative translation adjustment Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Debt Instrument, Fair Value Fair values of long-term debt Organization Consolidation And Presentation Of Financial Statements Disclosure And Comprehensive Income Disclosure Text Block 1. BASIS OF PRESENTATION This item describes the entire organization, consolidation and basis of presentation of financial statements disclosure and provides a summary of the ending accumulated balances for each component of comprehensive income. Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax Unamortized benefit plan costs, net of tax benefit of $1,446 as of March 31, 2011, and $1,800 as of December 31, 2010 Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax And Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax Net unrealized gain on marketable securities and cash flow hedges, net of tax expense of $3 as of March 31, 2011, and December 31, 2010 The accumulated appreciation or loss, net of tax, in value of the total of unsold securities at the end of an accounting period and the accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses. Technical Services [Member] Technical Services Technical Services reporting segment. Information Systems [Member] Information Systems Information Systems reporting segment. Electronic Systems [Member] Electronic Systems Electronic Systems reporting segment. Aerospace Systems [Member] Aerospace Systems Aerospace Systems reporting segment. Segment Reporting, Income before Income Taxes, Extraordinary Items, Discontinued Operations, and Cumulative Effect [Abstract] Reconciliation of Segment Operating Income to Total Operating Income (Table Amounts) [Abstract] Stock Repurchased and Retired During Period, Shares Shares repurchased Stock Repurchased And Retired Under Authorization Total shares retired Total shares retired under this authorization. Retirement Benefits (Table) [Abstract] Pension Benefit Plans (Amounts in paragraphs) Defined Benefit Plan Net Periodic Benefit Cost Abstract Components of Net Periodic Benefit Cost (Table Amounts) [Abstract] Defined Benefit Plan, Service Cost Service cost Defined Benefit Plan, Interest Cost Interest cost Defined Benefit Plan, Expected Return on Plan Assets Expected return on plan assets Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Prior service cost (credit) Defined Benefit Plan, Amortization of Gains (Losses) Net loss from previous years Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Defined Contribution Plan, Cost Recognized Defined contribution plans cost Defined Benefit Plan, Contributions by Employer Employer contributions Retirement Benefits (Details) [Abstract] Retirement Benefits. Amortization Of Prior Service Cost And Losses Abstract Amortization of: Amortization of Prior Service Cost and Losses. Pension Plans Defined Benefit Member Pension Benefits Other Postretirement Benefit Plans Defined Benefit Member Medical and Life Benefits Incremental Common Shares Attributable to Share-based Payment Arrangements Dilutive effect of stock options and other stock awards granted Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive stock options Segment Reporting Information, Revenue [Abstract] Sales and Service Revenues by Segment (Table Amounts) [Abstract] Defined Benefit Plans Disclosures, Defined Benefit Plans [Axis] Defined Benefit Plans [Domain] Goodwill Schedule of Goodwill [Text Block] Goodwill and Other Purchased Intangible Assets (Details) [Abstract] Goodwill and other purchased intangible assets. Schedule of Finite-Lived Intangible Assets by Major Class [Text Block] Purchased intangible assets Other Purchased Intangibles [Member] Other intangible assets having a finite beneficial life acquired in a business combination or other transaction. Other Purchased Intangibles Contract and Program Intangibles [Member] An intangible asset having a finite beneficial life acquired in a business combination or other transaction representing an order or production or production backlog arising from contracts such as purchase or sales orders. Contract and Program Intangibles Finite-Lived Intangible Assets, Gross Gross carrying amount Expected amortization for the year ending December 31 (Table Amounts) [Abstract] Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] 2012 Future Amortization Expense, Year One 2013 Future Amortization Expense, Year Two 2014 Future Amortization Expense, Year Three 2015 Future Amortization Expense, Year Four 2016 Future Amortization Expense, Year Five Finite-Lived Intangible Assets Weighted Average UsefulLifeed Intangible Assets, Weighted-Average Useful Life Weighted-average useful life for purchased intangible assets Finite-Lived Intangible Assets, Amortization Expense Aggregate amortization expense Stock Compensation Plans (Table) [Abstract] Stock Compensation Plans. Rollforward Activity Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Text Block] Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Volatility rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Shares under option - outstanding at March 31, 2011 Shares under option - outstanding at January 1, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period Grants under this plan Shares under option - granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Shares under option - exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Shares under option - cancelled and forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Shares under option - vested and expected to vest in the future at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Shares under option - exercisable at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Shares under option - available for grant at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-average exercise price - outstanding at March 31, 2011 Weighted-average exercise price - outstanding at January 1, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Weighted-average exercise price - cancelled and forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted-average exercise price - vested and expected to vest in the future at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-average exercise price - exercisable at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate intrinsic value - outstanding at March 31, 2011 Aggregate intrinsic value - outstanding at January 1, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Aggregate intrinsic value - vested and expected to vest in the future at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Aggregate intrinsic value - exercisable at March 31, 2011 Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted-average exercise price - granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted-average exercise price - exercised Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Stock awards - outstanding at March 31 Stock awards - outstanding at January 1 Stock awards - granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Stock Awards granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Stock awards - vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Stock awards - forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-average grant date fair value - outstanding at March 31 Weighted-average grant date fair value - outstanding at January 1 Weighted-average grant date fair value - granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value - vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value - forfeited Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Stock Compensation Plans (Details) [Abstract] Stock Compensation Plans. Stock Awards Plan [Member] Stock Awards Plan A non-stock option share-based compensation plan (for example, phantom stock plan, stock appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares. Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards, Weighted Average Period of Recognition Weighted-average period for unrecognized compensation expense to be charged to expense (years) Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards Unrecognized compensation expense related to unvested awards Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Realized tax benefits from exercise of stock options Allocated Share-based Compensation Expense Total pre-tax stock-based compensation expense Tax benefits recognized in the condensed consolidated statements of operations for stock-based compensation Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Weighted-average grant date fair value of stock options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Other Expense Income Abstract Other (expense) income Other Expense Income. Total intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Condensed Consolidated Statements of Operations [Abstract] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Goodwill [Roll Forward] Goodwill (Table Amounts) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Assumptions Relating To The Valuation of Stock Options (Table Amounts) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock Option Activity (Table Amounts) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] Stock Award Activity (Table Amounts) Sources of Cash - Continuing Operations Proceeds from Operating Activities [Abstract] Document and Entity Information [Abstract] Document and Entity Information. Document Fiscal Period Focus Document Fiscal Year Focus Notional value of interest rate swaps Notional Amount of Interest Rate Fair Value Hedge Derivatives Notional Amount Of Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Purchase Contracts Notional value of foreign currency purchase forward contracts not designated as hedging instruments Aggregate notional amount of foreign currency derivatives, not designated as hedging instruments, to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. Notional Amount Of Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Sale Contracts Notional value of foreign currency sale forward contracts not designated as hedging instruments Aggregate notional amount of foreign currency derivatives, not designated as hedging instruments, to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. Sales and service revenues by segment Reconciliation of Revenue from Segments to Consolidated [Text Block] Reconciliation of segment operating income to total operating income Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Text Block] Share Repurchases Text Block Share Repurchases The repurchase and immediate retirement of an entity's own shares on the open market or in privately negotiated transactions. Amount Authorized For Share Repurchases Amount authorized Amount authorized by the company's board of directors for share repurchases. Operating Leases, Rent Expense Rental expense for operating leases, excluding discontinued operations and net of immaterial amounts of sublease rental income Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Average Remaining Contractual Term Weighted-average remaining contractual term - outstanding at March 31 (years) Weighted-average remaining contractual term - outstanding at January 1 (years) Weighted-average remaining contractual term - outstanding at January 1 (years) The weighted average period between the balance-sheet date and vesting of stock awards outstanding under the plan, which may be expressed in a decimal value for number of years. Earnings Per Share [Text Block] 4. EARNINGS PER SHARE Earnings Per Share (Details) [Abstract] Earnings Per Share Details Abstract. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Number Of Shares Available For Grant Stock awards - available for grant at March 31, 2011 The difference between the maximum number of shares authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares already issuable for which the grantee has gained the right during the reporting period, by satisfying service and performance requirements, to receive certain shares or retain shares, other instruments, or cash in accordance with the terms of the arrangement , and 2) shares reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Capital Expenditures Incurred but Not yet Paid Capital expenditures accrued in accounts payable Average future service period of employees The average number of years of future service from employees over which the excess net actuarial gains or losses are amortized to expense. Average future service period of employees Accrued Environmental Loss Contingencies, Noncurrent Environmental liabilities recorded in other long-term liabilities Low-end of the range of reasonably possible future costs for environmental remediation sites Loss Contingency, Range of Possible Loss, Minimum Loss Contingency, Range of Possible Loss, Maximum High-end of the range of reasonably possible future costs for environmental remediation sites Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year Expected employer contributions Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term For Non Executives Expected option life for non-executives (years) The period of time a share-based award, for non-executives, is expected to be outstanding. A share-based award's expected term shall be determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. An entity is required to aggregate individual awards into relatively homogeneous groups. Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Accumulated Other Comprehensive Income Loss Numeric Abstract Accumulated Other Comprehensive Loss (Amounts in paragraphs) Accumulated Other Comprehensive Loss. Fair Value of Financial Instruments (Amounts in Paragraph) [Abstract] Fair Value of Financial Instruments. Fair Value Assets and Liabilites Measured On Recurring Basis Abstract Investments in Marketable Securities [Abstract] Goodwill And Other Purchased Intangible Assets Numeric [Abstract] Additional disclosure on Goodwill and Other Intangible Assets (Amounts in Paragraphs) Goodwill and Other Purchased Intangible Assets. Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted-average remaining contractual term - outstanding at March 31, 2011 (Years) Weighted-average remaining contractual term - outstanding at January 1, 2011 (Years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Weighted-average remaining contractual term - vested and expected to vest in the future at March 31, 2011 (Years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted-average remaining contractual term - exercisable at March 31, 2011 (Years) Stock Issued During Period, Shares, Share-based Compensation Common stock issued to employees in settlement of prior year stock awards that were fully vested Stock Issued During Period Issuance Date Fair Value Share Based Compensation Fair value of common stock issued - issuance date The fair value, at the time of issuance, of shares issued during the reporting period as a result of any share-based compensation plan other than an employee stock ownership plan (ESOP). Stock Issued During Period Grant Date Fair Value Share Based Compensation Fair value of common stock issued - grant date The fair value, at the time of grant, for shares issued during the reporting period as a result of any share-based compensation plan other than an employee stock ownership plan (ESOP). Future Amortization For Purchased Intangibles Text Block Expected amortization for purchased intangibles The estimated amortization expense for each of the five succeeding years for purchased intangible assets subject to amortization. Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Gain from discontinued operations, net of tax Non-segment factors affecting operating income [Domain] Royalty Income Adjustment [Member] Royalty income adjustment Royalty income is included in segment operating income and reclassified to other income for financial reporting purposes. Net Pension Adjustment [Member] Net pension adjustment The net pension adjustment reflects the difference between pension expense determined in accordance with U.S. GAAP and pension expense allocated to the operating segments determined in accordance with CAS. Unallocated Expense [Member] Unallocated corporate expenses Unallocated expense generally includes the portion of corporate expenses not considered allowable or allocable under applicable U.S. Government Cost Accounting Standards (CAS) regulations and the Federal Acquisition Regulation, and therefore not allocated to the segments, for costs related to management and administration, legal, environmental, certain compensation and retiree benefits, and other expenses. Business Intersegment Eliminations [Member] Intersegment eliminations Share Repurchases, by Program [Axis] Share repurchase program reported by authorization date. Share Repurchase Program [Domain] Share repurchase program reported by authorization date. Share Repurchases Average Price Per Share Average price per share Average price paid per share under this authorization. Share Repurchases Amount Remaining Under Authorization Amount remaining under authorization for share repurchases Amount remaining under the authorization. Calculated as total amount authorized less amount spent on share repurchases to date. Summary of Derivative Instruments by Risk Exposure [Abstract] Derivative Financial Instruments and Hedging Activities [Abstract] Marketable Securities, Current Fair value of marketable securities in prepaid expenses and other current assets Marketable Securities, Noncurrent Fair value of marketable securities in miscellaneous other assets Notional Amount Of Foreign Currency Derivative Instruments Designated As Hedging Instruments Purchase Contracts Notional value of foreign currency purchase forward contracts Aggregate notional amount of foreign currency derivatives, designated as hedging instruments, to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. Notional Amount Of Foreign Currency Derivative Instruments Designated As Hedging Instruments Sale Contracts Notional value of foreign currency sale forward contracts Aggregate notional amount of foreign currency derivatives, designated as hedging instruments, to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. Accumulated Other Comprehensive Income Loss Net Of Tax Parenthetical Abstract Accumulated Other Comprehensive Loss (Parenthetical) Accumulated Other Comprehensive Income Loss Net Of Tax Parenthetical Abstract. Consolidation, Policy [Text Block] Principles of Consolidation Share Repurchase [Line Items] Share Repurchase Line Items. Segment Information (Table) [Abstract] Segment Information Table Abstract Goodwill And Other Purchased Intangible Assets (Table) [Abstract] Goodwill And Other Purchased Intangible Assets Table Abstract. Segment Reporting Information [Line Items] Goodwill (Table Amounts) [Table] Purchased Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Diluted Earnings Per Share Reconciliation (Table) [Abstract] Diluted Earnings Per Share (Amounts in Paragraphs) Goodwill [Line Items] Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] Defined Contribution Plans Disclosure (Amounts in paragraphs) Schedule of Share Repurchases, by Program [Table] A table reflecting activity in a share repurchase program. Accumulated Other Comprehensive Loss Table Text Block Accumulated Other Comprehensive Loss This element reports the balances of components within accumulated other comprehensive loss. Net Unrealized Gain On Marketable Securities And Cash Flow Hedges Tax Tax expense on net unrealized gain on marketable securities and cash flow hedges Tax on the accumulated appreciation or loss in value of the total of unsold securities, and the accumulated change in gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges at the end of an accounting period. Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Tax Tax benefit on unamortized benefit plan costs Tax on the unamortized total of net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, associated with defined benefit pension or other postretirement plans. Common Stock Dividends Numeric Abstract Dividends on Common Stock (Amounts in paragraphs) Common Stock Dividends Numeric. Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Cash Surrender Value Life Insurance Policies Abstract Cash Surrender Value of Life Insurance Policies [Abstract] Cash Surrender Value Life Insurance Policies. Cash Surrender Value of Life Insurance Cash surrender value of life insurance policies Long-term Debt, Gross Carrying values of long-term debt Goodwill, Impaired [Abstract] Goodwill (Amounts in Paragraph) Goodwill Accumulated Impairment Accumulated goodwill impairment losses Accumulated goodwill impairment losses The accumulated amount of impairment on goodwill loss as of the balance sheet date resulting from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. Tax Adjustments, Settlements, and Unusual Provisions Recognition of net tax benefits, as a result of the settlement Jun 2010 Share Repurchase Program Original Authorization [Member] June 16, 2010 Program - Original Authorization Original authorization on the June 16, 2010 share repurchase program. Long-term Debt, Unclassified [Abstract] Long-Term Debt [Abstract] Subtotal Segments [Member] Subtotal Segments Total of the reportable segments. Non-segment factors affecting operating income [Axis] Disposal Group, Including Discontinued Operation, Revenue Sales and service revenues Sales and service revenues Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Vesting period of stock options and stock awards (years) Stock Option Plan [Member] Stock Option Plan A stock option share-based compensation plan for which the employer is contingently obligated to issue equity to an employee, including vested options. Net Earnings From Discontinued Operations Net earnings from discontinued operations This element represents the income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. This excludes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Share Repurchases Table Abstract Share Repurchases (Table Amounts) Share repurchases table abstract. Share Repurchases Numeric Abstract Share Repurchases (Amounts in Paragraphs) Share repurchases numeric abstract. Comprehensive Income Note Abstract Accumulated Other Comprehensive Loss (Table Amounts) [Abstract] Schedule Of Net Benefit Costs Table Text Block Disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss recognized due to settlements or curtailments. Components of net periodic benefit cost Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year Abstract Employer Contributions (Amounts in paragraphs) Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year. Employee Service Share Based Compensation Tax Benefit Realized From Issuance Of Stock Awards Realized tax benefits from issuance of stock awards Disclosure of the aggregate tax benefit realized from the issuance of stock awards. Stock Option And Awards [Abstract] Stock Option And Awards Plans [Abstract] Stock Option And Awards Plans. Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term For Executives Expected option life for executives (years) The period of time a share-based award, for executives, is expected to be outstanding. A share-based award's expected term shall be determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. An entity is required to aggregate individual awards into relatively homogeneous groups. Compensation Expense Abstract Compensation expense. Compensation Expense [Abstract] Income Taxes (Details) [Abstract] Income Taxes. Percent Cash Match Of Employee Contribution The maximum percentage of compensation the employer will contribute in order to match an employee's contribution to the plan. Maximum percentage of employee compensation eligible for cash matching of employee contributions Schedule of Segment Reporting Information, by Segment [Table] Schedule Of Assumptions For Valuation Of Stock Options Table Text Block Describes the significant assumptions used to calculate the weighted-average fair value under which share based compensation is awarded to employees. Assumptions relating to valuation of stock options Dec 2007 Share Repurchase Program Total Authorization [Member] December 19, 2007 Program - Total Authorization Total authorization on the December 19, 2007 share repurchase program. Finite-Lived Intangible Assets [Abstract] Purchased Intangible Assets (Table Amounts) [Abstract] Use Of Estimates [Text Block] Accounting Estimates Provides an entity's explanation that the preparation of financial statements in conformity with generally accepted accounting principles requires the use of management estimates. Statement, Business Segments [Axis] Segment, Business [Domain] Earnings Per Share (Tables) [Abstract] Earnings (Loss) Per Share. Percentage Threshold Net Actuarial Gains Losses Subject To Amortization Percentage threshold for excess gains or losses that are subject to amortization The US GAAP specified percentage of the greater of plan assets or projected benefit obligations by benefit plan over which the net actuarial gain or loss are subject to amortization to expense. Statement, Business Intersegments [Axis] Statement business intersegments. Intersegment, Business [Domain] Intersegment business. Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Option Life Expected option life (years) The period of time a share-based award is expected to be outstanding. Leases, Operating [Abstract] Operating leases Basis of Presentation (Details) [Abstract] Basis of Presentation. Proceeds From Sale Of Business Discontinued Operations Proceeds from disposition The proceeds associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Future Amortization Expense Remaining Year 2011 (April 1 - December 31) The amount of amortization expense expected to be recognized for the remainder of the fiscal year following the balance sheet date. BASIS OF PRESENTATION [Abstract] Basis of presentation. Segment Information (Details) [Abstract] Segment Information. DIVIDENDS ON COMMON STOCK [Abstract] Stockholders' Equity Note Disclosure [Text Block] 3. DIVIDENDS ON COMMON STOCK Significant Accounting Policies Assets of Disposal Group, Including Discontinued Operation, Current Assets of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation, Current Liabilities of discontinued operations BUSINESS DISPOSITIONS [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] 5. BUSINESS DISPOSITIONS Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Text Block] Discontinued operations income statement and balance sheet disclosures Basis of Presentation (Table) [Abstract] Basis of Presentation. Business Dispositions (Table) [Abstract] Business Dispositions. Basis Of Presentation Text Block Basis of presentation Description of the basis of accounting used to prepare the financial statements (for example, U.S. Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Reclassifications Text Block Financial Statement Reclassification Classifications in the current financial statements may be different from classifications in the prior year's financial statements. Disclose any material changes in classification including an explanation of the reason for the change and the areas impacted. Derivatives, Policy [Text Block] Derivative financial instruments Environmental Costs Policy Text Block Environmental costs Describes an entity's accounting policy for obligations that resulted from improper or other-than normal operation of a long-lived asset in the past. This accounting policy may address (1) whether the related remediation costs are expensed or capitalized, (2) whether the obligation is measured on a discounted basis, (3) the event, situation, or set of circumstances that generally triggers recognition of loss contingencies arising from the entity's environmental remediation-related obligations, and (4) the timing of recognition of any recoveries. Share Based Compensation Option And Incentive Plans Policy Text Block Stock compensation This element describes an entity's accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Dividends on Common Stock (Details) [Abstract] Common stock dividends and conversion of preferred stock details. Business Dispositions (Details) [Abstract] Business Dispositions Disposal Group Discontinued Operation Income Statement Disclosures Abstract Discontinued Operations Income Statement Disclosures (Table Amounts) Disposal Group Discontinued Operation Income Statement Disclosures. Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Earnings from discontinued operations Discontinued Operation, Tax Effect of Discontinued Operation Income tax expense Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Earnings, net of tax Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] Discontinued Operation Balance Sheet Disclosures (Table Amounts) [Abstract] Total assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation Liabilities [Abstract] Liabilities Liabilities, Noncurrent Long-term liabilities Long-term liabilities Total liabilities of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation Advisory Services Division Member Advisory Services Division Advisory Services Division of Information Systems segment. Long Term Debt And Capital Lease Obligations Current And Non Current Total debt Obligation related to long-term debt (excluding convertible debt) and capital leases. Includes the amounts due both within one year and more than one year after the balance sheet date. Aggregate principal amount Line of Credit Facility, Maximum Borrowing Capacity Term loan Long-term Debt Long-term Debt, Total Segment Spinoff Restructuring Costs Shipbuilding spinoff restructuring costs, net Net restructuring costs incurred as a result of the Shipbuilding spinoff. Investment, Policy [Text Block] Investments in marketable securities Total Distribution Made To Shareholders Share Distribution Total shares distributed Total shares distributed to common shareholders as part of the Shipbuilding segment spinoff. Increase (Decrease) in Restricted Cash Decrease in restricted cash Increase (Decrease) in Restricted Cash, Total Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash provided by (used in) investing activities by continuing operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Cash used in investing activities by discontinued operations Stockholders' Equity Note, Spinoff Transaction Spin-of of Shipbuilding business Net After Tax Actuarial Loss Amounts Net after-tax actuarial loss amounts Net after-tax actuarial loss amount component of the unamortized benefit plan cost. Shipbuilding Segment Member Shipbuilding Segment. Shipbuilding Segment Pro Rata Shares To Shareholders Share Distribution Pro rata shares Pro rata share distributed to common shareholders as part of the Shipbuilding segment spinoff. Economic Development Revenue Bonds Outstanding Economic Development Revenue Bonds, outstanding Economic Development Revenue Bonds Outstanding. Payments Outsourcing Contract Costs Payments for outsourcing contract costs and related software costs The cash outflow associated with the costs (including related software costs) incurred for direct and incremental one-time setup activities of information technology outsourcing-type contracts. Capital expenditures accrued in liabilities from discontinued operations Capital expenditures accrued in liabilities from discontinued operations. Capital expenditures accrued in liabilities from discontinued operations Debt Instrument, Face Amount Face amount of debt Debt Instrument, Interest Rate, Stated Percentage Stated interest rate Stock Repurchase Program Increased Authorized Amount Increased authorized amount of stock repurchase program Stock Repurchase Program Increased Authorized Amount. Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Gain on divestures, net of tax expenses of $1 and $4 as of March 31 2011 and 2010, respectively Contribution Received From Shipbuilding Spin Off Contribution received from the spin-off of Shipbuilding business Contribution received from the spin-off of Shipbuilding business. Use Of Proceeds From Debt Debt proceeds used for cash contribution Proceed amount used from the issuance of debt associated with the Shipbuilding Segment spinoff. Tax Expense On Gain Of Divesture Tax expense on gain of divestiture Tax expense on gain of divestiture. Segment Spinoff Non Deductible Transaction Costs Shipbuildinig spinoff non-deductible transaction costs Shipbuildinig spinoff non-deductible transaction costs.