Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Stock Split
Stock Split [Member]
Stock Split [Member]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Equity Award [Domain]
Vesting Stock Awards
Vesting Stock Awards [Member]
Vesting Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Shares of stock under stock awards, Awards granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Shares of stock under stock awards, Awards forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Shares of stock under stock awards, Awards vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Shares of stock under stock awards, Spin-off Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Separation Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Separation Adjustment
Shares, ending balance
Weighted average grant-date fair value, Shares, beginning balance
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, Awards 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, Awards forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted average grant-date fair value, Awards vested
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, Shares, Spin-off Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Separation Agreement, Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Separation Agreement, Weighted Average Grant Date Fair Value
Weighted average grant-date fair value, Shares, ending balance
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table]
Quarterly Financial Information [Table]
Quarterly Financial Information [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Leidos, Inc.
Subsidiaries [Member]
Quarterly Financial Information [Line Items]
Quarterly Financial Information [Line Items]
Quarterly Financial Information [Line Items]
Revenues
Revenues
Operating income
Operating Income (Loss)
Income (loss) from continuing operations
Income (Loss) from Continuing Operations Attributable to Parent
Income from discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Net income
Net Income (Loss) Attributable to Parent
Basic earnings (loss) per share
Earnings Per Share, Basic
Diluted earnings (loss) per share
Earnings Per Share, Diluted
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Table]
Pension And Other Postretirement Benefits Disclosure [Table]
Pension and Other Postretirement Benefits Disclosure [Table]
Postretirement Benefits, Type of Deferred Compensation [Axis]
Postretirement Benefits, Type of Deferred Compensation [Axis]
Type of Deferred Compensation, All Types [Domain]
Type of Deferred Compensation, All Types [Domain]
Deferred Compensation Plans
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Pension And Other Postretirement Benefits Disclosure [Line Items]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Compensation expense
Defined Contribution Plan, Cost Recognized
Maximum percentage certain employees can defer from salary for certain plans
Participants Maximum Percentage Of Eligible Salary Defer
Participants maximum percentage that an employee can defer of their eligible salary for 401 (k) plan.
Pension plan asset
Defined Benefit Plan Plan Participants Transfer To Pension Plan Asset
Defined Benefit Plan Plan Participants Transfer To Pension Plan Asset
Pension plan obligation
Defined Benefit Plan Plan Participants Transfer To Pension Plan Obligation
Defined Benefit Plan Plan Participants Transfer To Pension Plan Obligation
Projected benefit obligation
Defined Benefit Plan, Benefit Obligation
Fair value of plan assets
Defined Benefit Plan, Fair Value of Plan Assets
Funded status of plan
Defined Benefit Plan, Funded Status of Plan
Text Block [Abstract]
Statement [Table]
Statement [Table]
Statement [Line Items]
Statement [Line Items]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Segment Reporting [Abstract]
Percentage of revenues contributed by external customers to total revenues
Basis For Attributing Revenues From External Customers
Basis For Attributing Revenues From External Customers
Leases [Abstract]
Schedule of Rental Expense for Facilities and Equipment
Schedule of Rent Expense [Table Text Block]
Schedule of Future Minimum Lease Commitments and Sublease Receipts under Non-Cancelable Operating Leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Accounting Policies [Abstract]
Strategic advisory services
Strategic Advisory Services Expense
Strategic Advisory Services Expense
Legal and accounting services
Legal And Accounting Services Expense
Legal And Accounting Services Expense
Lease termination and facility consolidation expenses
Lease Termination and Facility Consolidation Expense
Lease Termination and Facility Consolidation Expense
Severance costs
Severance Costs
Separation transaction expenses in operating income
Restructuring Charges, Including Separation Costs
Restructuring Charges, Including Separation Costs
Less: income tax benefit
Restructuring Related Income Tax Benefit
Restructuring Related Income Tax Benefit
Separation transaction expenses, net of tax
Restructuring Charges, Including Separation Charges, Net of Tax
Restructuring Charges, Including Separation Charges, Net of Tax
Business Segment Information
Segment Reporting Disclosure [Text Block]
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Acquisitions
Business Combination Disclosure [Text Block]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Customer Relationships
Customer Relationships [Member]
Other
Other Finite Lived Intangible Assets [Member]
Other Finite Lived Intangible Assets
Tax deductible goodwill
Business Acquisition, Goodwill, Expected Tax Deductible Amount
Non-tax deductible goodwill
Business Acquisition Purchase Price Allocation Goodwill Expected Non Tax Deductible Amount
Business Acquisition Purchase Price Allocation Goodwill Expected Non Tax Deductible Amount
Identifiable intangible assets (finite-lived)
Finite-lived Intangible Assets Acquired
Weighted average lives of finite-lived intangibles (years)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Separation Transaction Expenses
Restructuring and Related Costs [Table Text Block]
Schedule of Restructuring Reserve
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Schedule of Depreciation using Estimated Useful Lives
Property, Plant and Equipment [Table Text Block]
Schedule of Finite-Lived Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Number of acquisitions
Number of Businesses Acquired
Cash consideration (paid and accrued)
Payments to Acquire Businesses, Gross
Supplemental Cash Flow Information [Abstract]
Supplementary Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Equity [Abstract]
Foreign currency translation adjustments, tax effect
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
The tax effect from accumulated adjustment, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains (losses).
Unrecognized net loss on settled derivative instruments associated with outstanding debt, tax effect
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Tax Effect
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax Effect
Unrecognized loss (gain) on defined benefit plan, tax effect
Accumulated Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax Effect
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Effect
Total accumulated other comprehensive loss, tax effect
Accumulated Other Comprehensive Income Loss Tax
Accumulated Other Comprehensive Income (Loss), Tax
Income Tax Disclosure [Abstract]
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Table]
Income Tax Contingency [Axis]
Income Tax Contingency [Axis]
Income Tax Contingency [Axis]
Income Tax Contingency [Domain]
Income Tax Contingency [Domain]
Income Tax Contingency [Domain]
Federal
Internal Revenue Service (IRS) [Member]
State
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Decrease in unrecognized tax benefits due to resolutions with tax authorities
Tax Adjustments, Settlements, and Unusual Provisions
Tax benefit from dividend paid to New SAIC's employees
Tax Adjustments, Settlements, and Unusual Provisions, Dividend Paid to Employee of the New Company
Tax Adjustments, Settlements, and Unusual Provisions, Dividend Paid to Employee of the New Company
Tax benefit from special dividend paid by the company
Tax Adjustments, Settlements, and Unusual Provisions, Special Dividend
Tax Adjustments, Settlements, and Unusual Provisions, Special Dividend
Reversal of accruals for unrecognized tax benefits
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions And Settlements With Tax Authorities
Unrecognized tax benefits increases resulting from prior period tax positions and settlements with tax authorities.
Net operating loss carryforwards
Operating Loss Carryforwards
State tax credit carryforwards
Tax Credit Carryforward, Amount
Expiration of state tax credit carryforwards
Tax Credit Carryforwards Expiration Date 1
Tax Credit Carryforwards Expiration Date 1
Tax Credit Carry forward expected to utilize amount
Deferred Tax Assets, Tax Credit Carryforwards
Unrecognized tax benefits accrued interest and penalties
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Liabilities for uncertain tax positions
Liability For Uncertain Tax Positions
Liability For Uncertain Tax Positions
Liabilities for uncertain tax positions, long-term
Liability for Uncertain Tax Positions, Noncurrent
Amount of reasonably possible resolution of reviews
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
Interest accrued previously
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Reduction in income tax expense
Increase (Decrease) in Income Taxes
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Disposal Groups, Including Discontinued Operations, Name [Domain]
SAIC
SAIC [Member]
SAIC [Member]
Other Intangible Assets
Other Intangible Assets [Member]
Software and Technology
Computer Software, Intangible Asset [Member]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Plainfield Renewal Energy Holdings LLC
Plainfield Renewal Energy Holdings LLC [Member]
Plainfield Renewal Energy Holdings LLC [Member]
Major Customers [Axis]
Customer [Axis]
Customer [Domain]
Customer [Domain]
One Customer
One Customer [Member]
One Customer [Member]
Two Customers
Two Customers [Member]
Two Customers [Member]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Ownership interest
Equity Method Investment, Ownership Percentage
Ownership in VIE
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage
Percentage of shares of newly formed company after spin-off transaction
Percentage Of Ownership After Spinoff Transaction
Percentage of Ownership After Spinoff Transaction
Reverse stock split
Stockholders' Equity Note, Stock Split, Conversion Ratio
Stock issued to Leidos shareholder upon divestiture of SAIC, ratio
Stock Conversion Upon Divestiture
Stock Conversion Upon Divestiture
Separation transaction expenses
Restructuring Charges
Operating cycle (in years)
Operating Cycle
Increase (decrease) in income due to contract estimates
Increase (Decrease) In Income From Change In Contract Estimates
Increase (Decrease) In Income From Change In Contract Estimates
Increase (decrease) in income due to contract estimates per diluted share
Increase (Decrease) In Income From Change In Contract Estimates Per Diluted Share
Increase (Decrease) In Income From Change In Contract Estimates Per Diluted Share
Period for billing and collection of unbilled receivables, maximum (in years)
Period For Billing And Collection Of Unbilled Receivables Maximum
Period for Billing and Collection of Unbilled Receivables Maximum
Period of collection for contract retentions, minimum (in years)
Period Of Collection For Contract Retentions Minimum
Period of Collection for Contract Retentions Minimum
Payment received from previously deferred payment
Proceeds from Sale and Collection of Receivables
Bad debt expense
Provision for Doubtful Accounts
Number of projects
Number of Projects
Number of Projects
Forgiveness of accounts receivable (net of $32 million bad debt expense)
Noncash or Part Noncash Acquisition Accounts Receivable Forgiven
Noncash or Part Noncash Acquisition Accounts Receivable Forgiven
Outstanding receivables
Accounts Receivable, Gross
Cash and cash equivalents original maturity period
Cash And Cash Equivalents Original Maturity Period
Cash and Cash Equivalents, Original Maturity Period
Noncontrolling ownership interest
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Depreciation
Depreciation
Useful life of intangible assets
Finite-Lived Intangible Asset, Useful Life
Internal research and development costs included in selling, general and administrative expenses
Research and Development Expense
Minimum likelihood of tax benefits being recognized upon ultimate settlement
Percentage Of Benefit Likely Of Being Realized Upon Ultimate Settlement
Percentage Of Benefit Likely Of Being Realized Upon Ultimate Settlement
Dividend declared
Dividends Payable, Amount Per Share
Payment towards dividends
Special Dividend Paid
Special Dividend Paid
Period of extension for deferred payment terms (in years)
Period Of Extension For Deferred Payment Terms
Period of Extension for Deferred Payment Terms
Debt Disclosure [Abstract]
Notes Payable and Long-Term Debt
Long-term Debt [Text Block]
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Table]
Schedule Of Earnings Per Share Basic And Diluted By Common Class [Table]
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Table]
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Schedule Of Earnings Per Share Basic And Diluted By Common Class [Line Items]
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Basic:
Earnings Per Share, Basic [Abstract]
Income (loss) from continuing operations
Income (Loss) from Continuing Operations, Per Basic Share
Income from discontinued operations
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Total basic earnings per share
Diluted:
Earnings Per Share, Diluted [Abstract]
Income (loss) from continuing operations
Income (Loss) from Continuing Operations, Per Diluted Share
Income from discontinued operations
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Total diluted earnings per share
Class of Treasury Stock [Table]
Class of Treasury Stock [Table]
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
Accelerated Share Repurchase (ASR)
Accelerated Share Repurchase [Member]
Accelerated Share Repurchase [Member]
Equity, Class of Treasury Stock [Line Items]
Equity, Class of Treasury Stock [Line Items]
Agreement to repurchase shares, amount
Stock Repurchase Program, Authorized Amount
Number of shares repurchased and retired
Stock Repurchased and Retired During Period, Shares
Amount paid to repurchase outstanding shares
Payments for Repurchase of Equity
Percentage of total outstanding shares repurchased
Accelerated Share Repurchases, Initial Shares Delivery, Percentage of Total Expected Shares To Be Repurchased
Accelerated Share Repurchases, Initial Shares Delivery, Percentage of Total Expected Shares To Be Repurchased
Value of initial shares repurchased
Stock Repurchased and Retired During Period, Value
Forward contract indexed to our common stock
Forward Contract Indexed to Issuer's Equity, Amount
Forward Contract Indexed to Issuer's Equity, Amount
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Table]
Goodwill And Intangible Assets Disclosure [Table]
Goodwill and Intangible Assets Disclosure [Table]
Reveal Imaging Technologies, Inc.
Reveal Imaging Technologies, Inc. [Member]
Reveal Imaging Technologies, Inc. [Member]
Vitalize and maxIT
Vitalize and maxIT [Member]
Vitalize and maxIT [Member]
Business Segments [Axis]
Segments [Axis]
Segment [Domain]
Segments [Domain]
Health and Engineering
Health and Engineering [Member]
Health and Engineering [Member]
NSS
National Security Solutions [Member]
National Security Solutions [Member]
Goodwill and Intangible Assets [Line Items]
Goodwill And Intangible Assets Disclosure [Line Items]
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill
Disposal Group, Including Discontinued Operation, Goodwill
Amortization expense related to amortizable intangible assets
Amortization of Intangible Assets
Intangible asset impairment charges
Impairment of Intangible Assets, Finite-lived
Amount computed at the statutory federal income tax rate (35%)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
State income taxes, net of federal tax benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Change in accruals for uncertain tax positions
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount
CityTime uncertain tax liability
Income Tax Reconciliation Uncertain Tax Liability
Income Tax Reconciliation Uncertain Tax Liability
Research and development credits
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
Dividends paid to employee stock ownership plan
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Amount
U.S. manufacturing activity benefit
Income Tax Reconciliation Tax Credits Manufacturing Activity Benefit
Income Tax Reconciliation Tax Credits Manufacturing Activity Benefit
Non-deductible penalties
Income Tax Reconciliation Non Deductible Penalties
Income tax reconciliation non-deductible penalties
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Total
Income Tax Expense (Benefit)
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Stock-Based Compensation [Abstract]
Share-based Compensation [Abstract]
Shares of stock under stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Options granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Options forfeited or expired
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Special dividend adjustments
Share Based Compensation Arrangement By Share Based Payment Award Options Adjustment For Special Cash Dividend
Share Based Compensation Arrangement By Share Based Payment Award Options Adjustment For Special Cash Dividend
Spin-off Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Options, Separation Adjustments
Share-based Compensation Arrangement by Share-based Payment Award, Options, Separation Adjustment
Outstanding, ending balance
Exercisable at year end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Vested and expected to vest in the future as of year end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Weighted average exercise price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Exercisable at year end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Options granted
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Options forfeited or expired
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Options exercised
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Outstanding, ending balance
Spin-off Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Options, Separation Agreement, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Separation Agreement, Weighted Average Exercise Price
Vested and expected to vest in the future as of year end
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Weighted average remaining contractual term and Aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term, Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted average remaining contractual term, Exercisable at year end
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term 2
Share based Compensation Arrangement By Share based Payment Award Options Exercisable Weighted Average Remaining Contractual Term 2
Weighted average remaining contractual term, Vested and expected to vest, years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Aggregate intrinsic value, Outstanding, beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate intrinsic value, Outstanding, Option Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Aggregate intrinsic value, Outstanding, ending balance
Aggregate intrinsic value, Outstanding, Vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Disclosure Schedule Of Certain Financial Statement Captions [Abstract]
Disclosure - Schedule of Certain Financial Statement Captions [Abstract]
Receivables, net:
Receivables, Net, Current [Abstract]
Billed and billable receivables
Accounts Receivable Billed And Billable
Accounts Receivable, Billed And Billable
Unbillable receivables, including contract retentions
Accounts Receivable Unbillable And Contract Retentions
Accounts Receivable, Unbillable And Contract Retentions
Less allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Receivables, net
Receivables, Net, Current
Inventory, prepaid expenses and other current assets:
Inventory Prepaid Expenses And Other Current Assets [Abstract]
Inventory, prepaid expenses and other current assets
Deferred income taxes
Deferred Tax Assets, Net of Valuation Allowance, Current
Inventories
Inventory, Net
Prepaid expenses
Prepaid Expense, Current
Prepaid income taxes and tax refunds receivable
Prepaid Taxes
Restricted cash
Restricted Cash and Cash Equivalents
Assets held for sale
Assets Held-for-sale, Current
Other
Other Assets, Miscellaneous, Current
Total inventory, prepaid expenses and other current assets
Other Assets, Current
Property, plant and equipment, net:
Property, Plant and Equipment, Net [Abstract]
Electric generation facility
Electric Generation Facility, Gross
Electric Generation Facility, Gross
Computers and other equipment
Machinery and Equipment, Gross
Leasehold improvements
Leasehold Improvements, Gross
Buildings and improvements
Buildings and Improvements, Gross
Office furniture and fixtures
Furniture and Fixtures, Gross
Land
Land
Construction in progress
Construction in Progress, Gross
Property, plant and equipment, gross
Property, Plant and Equipment, Gross
Less accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, plant and equipment, net
Property, Plant and Equipment, Net
Accounts payable and accrued liabilities:
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accrued liabilities
Accrued Liabilities, Current
Accounts payable
Accounts Payable, Current
Collections in excess of revenues on uncompleted contracts and deferred revenue
Collections In Excess Of Revenues And Deferred Revenue
Collections In Excess Of Revenues And Deferred Revenue.
Total accounts payable and accrued liabilities
Accounts Payable and Accrued Liabilities, Current
Accrued payroll and employee benefits:
Employee-related Liabilities, Current [Abstract]
Salaries, bonuses and amounts withheld from employees' compensation
Salaries Bonuses And Amounts Withheld From Employees Compensation
Salaries, bonuses and amounts withheld from employees' compensation.
Accrued vacation
Accrued Vacation, Current
Accrued contributions to employee benefit plans
Accrued Employee Benefits, Current
Total Accrued payroll and employee benefits
Employee-related Liabilities, Current
Other long-term liabilities:
Other Noncurrent Liabilities [Abstract]
Other Noncurrent Liabilities [Abstract]
Accrued pension liabilities
Defined Benefit Pension Plan, Liabilities, Noncurrent
Deferred compensation
Deferred Compensation Liability, Classified, Noncurrent
Liabilities for uncertain tax positions
Deferred tax liabilities
Deferred Tax Liabilities, Net, Noncurrent
Other
Other Liabilities Noncurrent Other
Other Liabilities Noncurrent Other.
Total other long-term liabilities
Other Liabilities, Noncurrent
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Type [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Severance Costs
Employee Severance [Member]
Lease Termination and Facility Consolidation Expenses
Facility Closing [Member]
Restructuring Reserve Disclosures [Abstract]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve [Roll Forward]
Restructuring Reserve [Roll Forward]
Opening balance
Restructuring Reserve
Charges
Cash payments
Payments for Restructuring
Closing balance
Statement of Financial Position [Abstract]
Preferred stock, par value
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Preferred stock, shares issued
Preferred Stock, Shares Issued
Preferred stock, shares outstanding
Preferred Stock, Shares Outstanding
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
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Net current deferred tax assets
Deferred Tax Assets, Net, Current
Deferred income taxes
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Net non-current deferred tax liabilities
Net deferred tax assets
Deferred Tax Assets, Net
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Indefinite-lived Intangible Assets by Major Class [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
In-Process Research And Development
In Process Research and Development [Member]
Trade Names
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value
Finite-Lived Intangible Assets, Gross
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Net carrying value
Finite-Lived Intangible Assets, Net
Indefinite-lived intangible assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Total intangible assets, Gross carrying value
Intangible Assets Gross
Intangible Assets, Gross
Total intangible assets, Net carrying value
Intangible Assets, Net (Excluding Goodwill)
Schedule of Supplementary Cash Flow Information
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Disclosure Leases Additional Information [Abstract]
Disclosure Leases Additional Information [Abstract]
Maximum contingent lease liability
Contingent Lease Obligation Not Included In Future Minimum Payments
Contingent lease obligation not included in future minimum payments.
Operating lease from a subcontractor, term (years)
Operating Lease From Subcontractor Term
Operating Lease From Subcontractor, Term
Capital lease obligations
Capital Lease Obligations
Remaining Term of Capital Lease
Remaining Term of Capital Lease
Remaining Term of Capital Lease
Income Statement [Abstract]
Costs and expenses:
Costs and Expenses [Abstract]
Cost of revenues
Cost of Revenue
Selling, general and administrative expenses
Operating Expenses
Separation transaction and restructuring expenses
Operating income (loss)
Non-operating income (expense):
Nonoperating Income (Expense) [Abstract]
Interest income
Investment Income, Interest
Interest expense
Interest Expense
Other (expense) income, net
Other Nonoperating Income (Expense)
Income (loss) from continuing operations before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Income tax expense
Income (loss) from continuing operations
Discontinued operations (Note 2):
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Income from discontinued operations before income taxes
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Income tax expense
Discontinued Operation, Tax Effect of Discontinued Operation
Income from discontinued operations
Net income
Earnings per share (Note 10):
Basic earnings (loss) per share
Diluted earnings (loss) per share
Current, Federal and foreign
Current Federal Tax Expense (Benefit)
Current, State
Current State and Local Tax Expense (Benefit)
Deferred, Federal and foreign
Deferred Federal Income Tax Expense (Benefit)
Deferred, State
Deferred State and Local Income Tax Expense (Benefit)
maxIT Healthcare Holdings Inc.
maxIT Healthcare Holdings Inc. [Member]
maxIT Healthcare Holdings Inc. [Member]
Schedule of Acquisition Information
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Schedule of Finite-lived, Indefinite-lived and Goodwill
Finite-Lived, Indefinite-Lived Intangible Assets and Goodwill Acquired as Part of Business Combination [Table Text Block]
Finite-Lived, Indefinite-Lived Intangible Assets and Goodwill Acquired as Part of Business Combination [Table Text Block]
Schedule of Details of Purchase Price
Schedule of Details of Purchase Price [Text Block]
Schedule of Details of Purchase Price [Text Block]
Estimated Fair Values of Assets Acquired And Liabilities Assumed
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
HES
Health Energy and Engineering Group [Member]
Health Energy and Engineering Group [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Beginning balance, Goodwill
Goodwill
Acquisitions
Goodwill, Acquired During Period
Corporate reorganization
Goodwill, Purchase Accounting Adjustments
Ending balance, Goodwill
Contingent Consideration by Type [Axis]
Contingent Consideration by Type [Axis]
Contingent Consideration Type [Domain]
Contingent Consideration Type [Domain]
November 2015 or the successful sale of the plant
Milestone Two [Member]
Milestone Two [Member]
Achievement of Milestones
Achievement of Milestones [Member]
Achievement of Milestones [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Secured Debt
Secured Debt [Member]
Receivable from PRE Holdings
Receivable from PRE Holdings [Member]
Receivable from PRE Holdings [Member]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Carlyle Group
Carlyle Group [Member]
Carlyle Group [Member]
Connecticut Light and Power
Connecticut Light and Power [Member]
Connecticut Light and Power [Member]
maxIT Healthcare Holdings, Inc.
Maxit [Member]
Maxit [Member]
Percentage of ownership
Percentage of Ownership
Percentage of Ownership
Capacity of power plant
Capacity of Power Plant
Capacity of Power Plant
Percentage of power to be purchased
Percentage of Power to be Purchased
Percentage of Power to be Purchased
Term of agreement
Term of Agreement
Term of Agreement
Fuel supply agreement, term
Fuel Supply Agreement, Term
Fuel Supply Agreement, Term
Receivable due from Plainfield
Accounts Receivable, Net, Current
Number of debt instruments financed by Carlyle Grp
Number of Debt Instruments
Number of Debt Instruments
Senior notes, face amount
Debt Instrument, Face Amount
Repayment of principal
Early Repayment of Debt, Principal
Early Repayment of Debt, Principal
Repayment of debt
Early Repayment of Senior Debt
Loss recorded as bad debt
Gains (Losses) on Extinguishment of Debt
Contingent consideration
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Revenue from acquisition
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Operating loss
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Percent of acquired stock
Business Acquisition Percentage Of Acquired Stock
Business Acquisition Percentage Of Acquired Stock
Note Payable and Long-Term Debt
Long-term Debt, Unclassified [Abstract]
2015
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
2016
Long-term Debt, Maturities, Repayments of Principal in Year Two
2017
Long-term Debt, Maturities, Repayments of Principal in Year Three
2018
Long-term Debt, Maturities, Repayments of Principal in Year Four
2019
Long-term Debt, Maturities, Repayments of Principal in Year Five
2020 and thereafter
Long-term Debt, Maturities, Repayments of Principal after Year Five
Total principal payments
Long Term Debt Before Unamortized Discount
Long Term Debt Before Unamortized Discount
Less unamortized discount
Debt Instrument, Unamortized Discount
Total notes payable and long-term debt
Long-term Debt
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Government Contracts Concentration Risk
Government Contracts Concentration Risk [Member]
US DoD [Member]
US DoD [Member]
US DoD [Member]
U.S. Government
U S Government [Member]
U S Government [Member]
U.S. Army
U S Army [Member]
U S Army [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Percentage of sales
Concentration Risk, Percentage
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized net loss on settled derivatives which will be amortized and recognized
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Statement of Stockholders' Equity [Abstract]
Cash dividend per share
Common Stock, Dividends, Per Share, Declared
Stock based compensation from discontinued operations
Allocated Share-based Compensation Expense
Special cash dividend
Special Dividend
Special Dividend.
Schedule of Segment Reporting Information by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Total Revenue Percentages Contributable to Specific Government Agencies
Segments Major Customers Explanatory Table [Text Block]
Segments Major Customers Explanatory
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 [Table]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents
Receivables, net
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net
Inventory, prepaid expenses and other current assets
Disposal Group, Including Discontinued Operation, Inventory, Prepaid and Other Current Assets
Disposal Group, Including Discontinued Operation, Inventory, Prepaid and Other Current Assets
Total current assets
Assets of Disposal Group, Including Discontinued Operation, Current
Property, plant and equipment, net
Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Net
Intangible assets, net
Disposal Group, Including Discontinued Operation, Intangible Assets, Net
Deferred income taxes
Disposal Group, Including Discontinued Operation, Deferred Tax Assets, Noncurrent
Other assets
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets
Total assets
Assets of Disposal Group, Including Discontinued Operation
Accounts payable and accrued liabilities
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current
Accrued payroll and employee benefits
Disposal Group, Including Discontinued Operation, Other Current Liabilities
Notes payable and long-term debt
Disposal Group, Including Discontinued Operation, Note Payable and Long-term Debt
Disposal Group, Including Discontinued Operation, Note Payable and Long-term Debt
Total current liabilities
Liabilities of Disposal Group, Including Discontinued Operation, Current
Non-current liabilities
Disposal Group, Including Discontinued Operation, Other Noncurrent Liabilities
Total liabilities
Liabilities of Disposal Group, Including Discontinued Operation
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Unsecured borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Extended maturity period of revolving credit facility (in years)
Revolving Credit Facility Extended Maturity Period
Revolving credit facility, extended maturity period.
Borrowings outstanding under the revolving credit facility
Line of Credit Facility, Amount Outstanding
Revolving credit facility financial covenants description
Line of Credit Facility, Covenant Compliance
Ratio of consolidated funded debt to EBITDA, numerator, maximum
Ratio Of Consolidated Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization Numerator Maximum
Ratio Of Consolidated Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization, Numerator, Maximum
Ratio of consolidated funded debt to EBITDA, denominator, maximum
Ratio Of Consolidated Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization Denominator Maximum
Ratio Of Consolidated Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization Denominator, Maximum
Minimum ratio of EBITDA to interest expense, numerator
Minimum Ratio Of Earnings Before Interest Taxes Depreciation And Amortization To Interest Expense Numerator
Minimum Ratio Of Earnings Before Interest Taxes Depreciation And Amortization To Interest Expense, Numerator
Minimum ratio of EBITDA to interest expense, denominator
Minimum Ratio Of Earnings Before Interest Taxes Depreciation And Amortization To Interest Expense Denominator
Minimum Ratio Of Earnings Before Interest Taxes Depreciation And Amortization To Interest Expense Denominator
Sale Leaseback Transaction [Table]
Sale Leaseback Transaction [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other Long-term Liabilities
Other Noncurrent Liabilities [Member]
Notes payable and long-term debt, net of current portion
Capital Lease Obligations [Member]
Sale Leaseback Transaction, Description [Axis]
Sale Leaseback Transaction, Description [Axis]
Sale Leaseback Transaction, Name [Domain]
Sale Leaseback Transaction, Name [Domain]
May 2013 Sales Lease Back Agreement
May 2013 Sales Lease Back Agreement [Member]
May 2013 Sales Lease Back Agreement [Member]
Fairfax County, Virginia, Two Office Buildings
Fairfax County, Virginia, Two Office Buildings [Member]
Fairfax County, Virginia, Two Office Buildings [Member]
Notes Payable, Other Payables
Fairfax County, Virginia, One Office Building [Member]
Fairfax County, Virginia, One Office Building [Member]
Multi-level Parking Garage
Multi-level Parking Garage [Member]
Multi-level Parking Garage [Member]
Surface Parking Lots
Surface Parking Lots [Member]
Surface Parking Lots [Member]
Sale Leaseback Transaction [Line Items]
Sale Leaseback Transaction [Line Items]
Area of land
Area of Land
Allocated consideration to Note parable and Other long-term liabilities
Sale Leaseback Transaction, Amount Due under Financing Arrangement
Term of debt instrument
Debt Instrument, Term
Rate of interest
Sale Leaseback Transaction, Imputed Interest Rate
Number of real estate properties
Number of Real Estate Properties
Period to complete transaction
Sale of Property, Period to Complete Transaction
Sale of Property, Period to Complete Transaction
Proceeds received upon closure of first phase of the transaction
Sale Leaseback Transaction, Net Proceeds
Number of buildings leased back
Sale Leaseback Transaction, Number of Buildings Leased Back
Sale Leaseback Transaction, Number of Buildings Leased Back
Number of buildings sold
Sales and Leaseback Transaction, Number of Buildings Sold
Sales and Leaseback Transaction, Number of Buildings Sold
Book value of the building sold
Sale Leaseback Transaction, Net Book Value
Net loss on sales and disposals of assets
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Term of lease
Sale Leaseback Transaction, Lease Terms
Selected Quarterly Financial Data (Unaudited)
Quarterly Financial Information [Text Block]
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments, net of taxes of $(1) million as of January 31, 2014 and 2013, respectively
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Unrecognized net loss on settled derivative instruments associated with outstanding debt, net of taxes of $3 million as of January 31, 2014 and 2013, respectively
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Unrecognized (loss) gain on defined benefit plan, net of taxes of $2 million and $0 million as of January 31, 2014 and 2013, respectively
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax
Total accumulated other comprehensive loss, net of taxes of $4 million and $2 million as of as of January 31, 2014 and 2013, respectively
Accumulated Other Comprehensive Income (Loss), Net of Tax
Income Tax Contingency [Table]
Income Tax Contingency [Table]
Income Tax Contingency [Line Items]
Income Tax Contingency [Line Items]
Unrecognized tax benefits at beginning of year
Unrecognized Tax Benefits
Additions for tax positions related to current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Additions for tax positions related to prior years
Reductions for tax positions related to prior years
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Decrease in unrecognized tax benefits due to resolutions with tax authorities
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Lapse of statute of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Unrecognized tax benefits at end of year
Unrecognized tax benefits that, if recognized, would affect the effective income tax rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Accrued vacation and bonuses
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Compensated Absences
Investments
Deferred Tax Assets, Investment in Subsidiaries
Deferred compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
Vesting stock awards
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost
Credits and net operating losses carryovers
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward
Employee benefit contributions
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits
Reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves
Other
Deferred Tax Assets, Other
Total deferred tax assets
Deferred Tax Assets, Gross
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance
Deferred revenue
Deferred Tax Liabilities, Tax Deferred Income
Fixed asset basis differences
Deferred Tax Liabilities, Property, Plant and Equipment
Purchased intangible assets
Deferred Tax Liabilities, Intangible Assets
Total deferred tax liabilities
Deferred Tax Liabilities, Net
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings
Legal Matters and Contingencies [Text Block]
Leases
Operating Leases of Lessee Disclosure [Table Text Block]
Business Combination Allocation of Purchase Price [Table]
Business Combination Allocation Of Purchase Price [Table]
Business Combination Allocation of Purchase Price [Table]
Business Combination Allocation of Purchase Price [Line Items]
Business Combination Allocation Of Purchase Price [Line Items]
Business Combination Allocation of Purchase Price [Line Items]
Cash
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents
Receivables
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Other assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets
Accounts payable, accrued liabilities and accrued payroll and employee benefits
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities
Notes payable assumed (net of debt discount)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Note Payable, Net of Debt Discount
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Note Payable, Net of Debt Discount
Deferred tax liabilities, net
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent
Total identifiable net assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Goodwill
Intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Total purchase consideration
Business Combination, Consideration Transferred
Schedule of Accumulated Other Comprehensive Loss
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Notes Which Mature In December 2020
Notes Which Mature On December Two Thousand Twenty [Member]
Notes Which Mature on December Two Thousand Twenty [Member]
Notes Which Mature In December 2040
Notes Which Mature On December Two Thousand Forty [Member]
Notes Which Mature On December Two Thousand Forty [Member]
Notes Which Mature In July 2032
Notes Which Mature On July Two Thousand Thirty Two [Member]
Notes Which Mature On July Two Thousand Thirty Two [Member]
Notes Which Mature In July 2033
Notes Which Mature On July Two Thousand Thirty Three [Member]
Notes Which Mature On July Two Thousand Thirty Three [Member]
Other Notes Payable Due On Various Dates Through Fiscal 2021
Capital Leases And Other Notes Payable Due On Various Dates Through Fiscal Two Thousand Twenty One [Member]
Capital Leases And Other Notes Payable Due On Various Dates Through Fiscal Two Thousand Twenty One [Member]
Senior unsecured notes
Senior Notes
Other notes payable due on various dates through fiscal 2021
Other Notes Payable
Less current portion
Debt, Current
Total notes payable and long-term debt, net of current portion
Long-term Debt, Excluding Current Maturities
Fair value of notes payable and long-term debt
Debt Instrument, Fair Value Disclosure
Stated interest rate
Debt Instrument, Interest Rate, Stated Percentage
Minimum stated interest rate
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Maximum stated interest rate
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Effective interest rate
Debt Instrument, Interest Rate, Effective Percentage
Discontinued Operations [Table]
Discontinued Operations [Table]
Discontinued Operations [Table]
Discontinued Operations [Line Items]
Discontinued Operations [Line Items]
Discontinued Operations [Line Items]
Proceeds from divestiture of businesses
Proceeds from Divestiture of Businesses
Reimbursement to Leidos, Inc.
Proceeds from (Repayments of) Debt
Capital contribution to new SAIC
Adjustments to Additional Paid in Capital, Contribution Paid for Divesture
Adjustments to Additional Paid in Capital, Contribution Paid for Divesture
Proceeds from discontinued operations
Discontinued Operation Sale Proceeds From Disposal Of Discontinued Operations
Discontinued Operation Sale Proceeds From Disposal Of Discontinued Operations
Gain on sale before Income Tax
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Earnings Per Share [Table]
Earnings Per Share [Table]
Earnings Per Share [Table]
Earnings Per Share [Line Items]
Earnings Per Share [Line Items]
Earnings Per Share [Line Items]
Basic EPS:
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Income (loss) from continuing operations, as reported
Less: allocation of distributed and undistributed earnings to participating securities
Participating Securities, Distributed and Undistributed Earnings
Income (loss) from continuing operations, for computing basic EPS
Net Income Loss From Continuing Operations Available To Common Stockholders Basic
Net Income (Loss) From Continuing Operations Available To Common Stock Holders, Basic
Net income, as reported
Less: allocation of distributed and undistributed earnings to participating securities
Participating Securities Distributed And Undistributed Earnings Basic
Participating Securities, Distributed and Undistributed Earnings, Basic
Net income, for computing basic EPS
Net Income (Loss) Available to Common Stockholders, Basic
Diluted EPS:
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Income (loss) from continuing operations, for computing diluted EPS
Net Income Loss From Continuing Operation Available To Common Stockholders Diluted
Net Income (Loss) From Continuing Operations Available To Common Stock Holders, Diluted
Less: allocation of distributed and undistributed earnings to participating securities
Participating Securities Distributed And Undistributed Earnings Diluted
Participating Securities, Distributed and Undistributed Earnings, Diluted
Net income, for computing diluted EPS
Net Income (Loss) Available to Common Stockholders, Diluted
Statement of Cash Flows [Abstract]
Cash acquired in acquisitions
Cash Acquired from Acquisition
Other Commitments And Contingencies [Table]
Other Commitments And Contingencies [Table]
Other Commitments And Contingencies [Table]
Pre-Separation
Pre-Separation [Member]
Pre-Separation [Member]
RDS
Research and Development Solutions, LLC [Member]
Research and Development Solutions, LLC [Member]
Virnet X Inc
Virnet X Inc [Member]
Virnet X Inc [Member]
Equity Method Investee, Name [Axis]
Investment, Name [Axis]
Equity Method Investee, Name [Domain]
Investment, Name [Domain]
Bechtel SAIC Company, LLC
Bechtel Saic Company Llc [Member]
Bechtel Saic Company Llc [Member]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature [Domain]
Standby Letters of Credit
Standby Letters of Credit [Member]
Performance Guarantee
Performance Guarantee [Member]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Government Investigations And Reviews
Government Investigations And Reviews [Member]
Government Investigations and Reviews [Member]
Other Commitments And Contingencies [Line Items]
Other Commitments And Contingencies [Line Items]
Other Commitments And Contingencies [Line Items]
Number of patents infringed
Number Of Patents Infringed
Number of Patents Infringed
Patents transferred and awarded
Proceeds from Legal Settlements
Percentage of proceeds obtained
Percentage Of Net Proceeds From Legal Settlement Receivable
Percentage Of Net Proceeds From Legal Settlement Receivable
Aggregate loss provisions
Loss Contingency, Damages Paid, Value
Liability for estimate of loss
Loss Contingency Accrual, Provision
Number of joint venture partners
Number of Joint Venture Partners
Number of Joint Venture Partners
Amount outstanding
Debtor-in-Possession Financing, Letters of Credit Outstanding
Surety bonds
Surety Bonds Amount Outstanding
Surety Bonds, Amount Outstanding
Estimated accruals for claims incurred but not yet reported
Liability for Unpaid Claims and Claims Adjustment Expense, Reported and Incurred but Not Reported (IBNR) Claims
Other Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Related Party Transactions [Abstract]
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Reconciliation of Income used in Calculating Earnings Per Share
Reconciliation Of Income Used In Calculating Earnings Per Share [Text Block]
Reconciliation Of Income Used In Calculating Earnings Per Share
Reconciliation of Weighted Average Number of Shares Outstanding
Schedule of Weighted Average Number of Shares [Table Text Block]
Schedule Of Basic and Diluted EPS
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule Of Stock-Based Awards Excluded from Weighted Average Shares Outstanding
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
2015
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2016
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2017
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Five
2020 and thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Performance-Based Stock Awards
Performance Shares [Member]
Expected number of shares of stock to be issued under performance-based stock awards, Awards canceled
Weighted average grant-date fair value, Awards granted
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Fair Value
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Fair Value
Fair value of vesting awards that vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Performance period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Stock-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Retirement Plans
Pension and Other Postretirement Benefits Disclosure [Text Block]
Other Disposals
Other Disposals [Member]
Other Disposals [Member]
Schedule of Discontinued Operations
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Stock Options
Employee Stock Option [Member]
Outstanding Stock Awards
Stock Compensation Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive stock based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Composition of Certain Financial Statement Captions
Composition Of Certain Financial Statement Captions [Text Block]
Composition Of Certain Financial Statement Captions
Schedule of Provision for Income Taxes
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Reconciliation of Provision for Income Taxes
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Deferred Tax Assets (Liabilities)
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Net Deferred Tax Assets
Schedule Of Classified Deferred Tax Assets And Liabilities Table [Text Block]
Schedule Of Classified Deferred Tax Assets And Liabilities
Schedule of Changes in Unrecognized Tax Benefits
Summary of Income Tax Contingencies [Table Text Block]
Schedule of Stock-Based Compensation and Related Tax Benefits Recognized
Schedule Of Share Based Compensation And Related Tax Benefits Recognized Table [Text Block]
Schedule Of Share Based Compensation And Related Tax Benefits Recognized
Schedule of Weighted Average Grant-Date Fair Value And Assumptions Used
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of Share-Based Compensation Activity Related to Exercise of Stock Options
Schedule Of Share Based Compensation Activity Related To Exercise Of Stock Options Table [Text Block]
Schedule Of Share Based Compensation Activity Related To Exercise Of Stock Options
Schedule of Options Outstanding
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Schedule of Vesting Stock Award Activity
Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]
Schedule of Performance-Based Stock Award Activity
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block]
Operating lease Commitment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2016
Operating Leases, Future Minimum Payments, Due in Two Years
2017
Operating Leases, Future Minimum Payments, Due in Three Years
2018
Operating Leases, Future Minimum Payments, Due in Four Years
2019
Operating Leases, Future Minimum Payments, Due in Five Years
2020 and thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total
Operating Leases, Future Minimum Payments Due
Sublease receipts
Operating Leases, Future Minimum Payments Receivable [Abstract]
2015
Operating Leases, Future Minimum Payments Receivable, Current
2016
Operating Leases, Future Minimum Payments Receivable, in Two Years
2017
Operating Leases, Future Minimum Payments Receivable, in Three Years
2018
Operating Leases, Future Minimum Payments Receivable, in Four Years
2019
Operating Leases, Future Minimum Payments Receivable, in Five Years
2020 and thereafter
Operating Leases, Future Minimum Payments Receivable, Thereafter
Total
Operating Leases, Future Minimum Payments Receivable
Legal Proceedings [Table]
Legal Proceedings [Table]
Legal Proceedings [Table]
Contracts by Third Party [Axis]
Contracts By Third Party [Axis]
Contracts by Third Party [Axis]
Contracts by Third Party [Domain]
Contracts By Third Party [Domain]
Contracts by Third Party [Domain]
Greek Government Contract
Greek Government Contract [Member]
Greek Government Contract [Member]
Nuclear Regulatory Commission
Nuclear Regulatory Commission [Member]
Nuclear Regulatory Commission [Member]
Legal Proceedings And Related Matters [Axis]
Legal Proceedings And Related Matters [Axis]
Legal Proceedings And Related Matters [Axis]
Legal Proceedings And Related Matters [Domain]
Legal Proceedings And Related Matters [Domain]
Legal Proceedings And Related Matters [Domain]
Stockholder Derivative Cases
Stockholder Derivative Cases [Member]
Stockholder Derivative Cases [Member]
Securities Class Actions
Securities Class Actions [Member]
Securities Class Actions [Member]
Letters of Credit Related System Support and Maintenance
Letters Of Credit Related System Support And Maintenance [Member]
Letters of Credit Related System Support and Maintenance [Member]
Breach of Contract
Breach Of Contract [Member]
Breach of Contract [Member]
False Claims Act Claims
False Claims Act Claims [Member]
False Claims Act Claims [Member]
Invoice for Undisputed Portion of Contract
Invoice For Undisputed Portion Of Contract [Member]
Invoice for Undisputed Portion of Contract [Member]
Letters of Credit Relating to Delivery
Letters Of Credit Relating To Delivery [Member]
Letters of Credit Relating to Delivery [Member]
Timekeeping Contract with City of New York
Time Keeping Contract With City Of New York [Member]
Time keeping Contract With City of New York [Member]
Data Privacy Litigation
Data Privacy Litigation [Member]
Data Privacy Litigation [Member]
Value Added Taxes
Value Added Taxes [Member]
Value Added Taxes [Member]
Legal Proceedings [Line Items]
Legal Proceedings [Line Items]
Legal Proceedings [Line Items]
Cash settlement payment
Payments for Legal Settlements
DPA provides that the monitor will serve for a period (in years)
Deferred Prosecution Agreement Provides Monitor Service Period
Deferred Prosecution Agreement Provides Monitor Service Period
Number of lawsuits
Number Of Lawsuits
Number Of Lawsuits
Number of patients (in millions)
Number Of Military Clinic And Hospital Patients
Number of Military Clinic and Hospital Patients
Credit monitoring (in years)
Credit Monitoring, Term
Credit Monitoring, Term
Period of identity restoration services
Period Of Identity Restoration Services
Period Of Identity Restoration Services
Damages sought
Loss Contingency, Damages Sought, Value
Judgments or settlements relating to the claims
Judgments Or Settlements Relating To Claims
Judgments or settlements relating to the claims
Estimated loss, minimum
Loss Contingency, Range of Possible Loss, Minimum
Number of lawsuits, withdrawn
Loss Contingency Claims Resolved
Loss Contingency Claims Resolved
Number of lawsuits, consolidated
Consolidated Cases Number Of Lawsuits
Consolidated Cases Number Of Lawsuits
Number of False Claims
Number of False Claims
Number of False Claims
Number of former CEO's
Number of Former Chief Executive Officers
Number of Former Chief Executive Officers
Cases reviewed by the board
Number of Cases Reviewed by the Board
Number of Cases Reviewed by the Board
Company received an arbitral award
Loss Contingency, Damages Awarded, Value
Contracts receivable
Contract Receivable
Recorded losses
Cumulative Contract Losses
Cumulative losses on a customer contract.
Receivables relating to value added taxes
Value Added Tax Receivable
Amount outstanding
Letter of credit available to the company
Third Party Credit Enhancement Amount
Third Party Credit Enhancement, Amount
Loss related to litigation settlement
Gain (Loss) Related to Litigation Settlement
Judgment rescinded on appeal
Judgment Rescinded On Appeal
Judgment rescinded on appeal.
Nature of Operations and Basis of Presentation
Nature Of Operations Policy [Text Block]
Nature of Operations
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Separation Transaction and Restructuring Expenses
Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block]
Operating Cycle
Operating Cycle Policy [Text Block]
Operating Cycle
Variable Interest Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Changes in Estimates on Contracts
Changes In Estimates On Contracts Policy [Text Block]
Changes in Estimates on Contracts
Receivables
Receivables, Policy [Policy Text Block]
Discontinued Operations
Discontinued Operations, Policy [Policy Text Block]
Pre-contract Costs
Precontract Costs, Policy [Policy Text Block]
Financial Instruments
Financial Instruments Policy [Text Block]
Financial Instruments
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Cash and Cash Equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Restricted Cash
Restricted Cash Policy [Text Block]
Restricted Cash
Concentration of Credit Risk
Concentration Of Credit Risk Policy [Text Block]
Concentration Of Credit Risk
Investments
Investment, Policy [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Property, Plant and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Goodwill and Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Selling, General and Administrative Expenses
Selling, General and Administrative Expenses, Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Special Cash Dividend
Special Dividend [Policy Text Block]
Special Dividend
Foreign Currency
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Accounting Standards Updates Adopted
Accounting Standards Updates Adopted Policy [Text Block]
Accounting Standards Updates Adopted
Accounting Standards Updates Issued But Not Yet Adopted
Accounting Standards Updates Issued But Not Yet Adopted Policy [Text Block]
Accounting Standards Updates Issued But Not Yet Adopted
Discontinued Operation
Revenues
Disposal Group, Including Discontinued Operation, Revenue
Cost of revenues
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Selling, general and administrative expenses
Disposal Group, Including Discontinued Operation, Selling, General and Administrative Expense
Disposal Group, Including Discontinued Operation, Selling, General and Administrative Expense
Operating income
Disposal Group, Including Discontinued Operation, Operating Income (Loss)
Schedule Of Weighted Average Number Of Shares Outstanding [Table]
Schedule of Weighted Average Number of Shares Outstanding [Table]
Weighted Average Number of Shares Outstanding [Line Items]
Weighted Average Number Of Shares Outstanding [Line Items]
Weighted Average Number of Shares Outstanding [Line Items]
Earnings Per Share [Abstract]
Basic weighted average number of shares outstanding
Weighted Average Number of Shares Outstanding, Basic
Diluted weighted average number of shares outstanding
Weighted Average Number of Shares Outstanding, Diluted
Leases [Table]
Leases [Table]
Leases [Line Items]
Leases [Line Items]
Leases [Line Items]
Leases [Abstract]
Gross rental expense
Operating Leases, Rent Expense, Minimum Rentals
Less lease and sublease income
Operating Leases, Income Statement, Sublease Revenue
Net rental expense
Operating Leases, Rent Expense
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Other Income, Net
Other Income, Net [Member]
Other Income, Net [Member]
Extinguishment of Debt [Axis]
Extinguishment of Debt [Axis]
Extinguishment of Debt, Type [Domain]
Extinguishment of Debt, Type [Domain]
Notes Payable
Notes Payable, Other Payables [Member]
Cash Grant Note
Cash Grant Note [Member]
Cash Grant Note [Member]
Construction Note
Construction Note [Member]
Construction Note [Member]
Note payable, face amount
Stated percentage, paid in cash
Debt Instrument, Interest Rate, Stated Percentage, Paid in Cash
Debt Instrument, Interest Rate, Stated Percentage, Paid in Cash
Discount on early termination fees
Discount on Early Termination Fees
Discount on Early Termination Fees
Interest expense
Interest Expense, Debt
Early termination fees
Early Termination Fees
Early Termination Fees
Extinguishment of debt
Extinguishment of Debt, Amount
Amortization of financing costs
Write off of Deferred Debt Issuance Cost And Debt Discount
Write off of Deferred Debt Issuance Cost And Debt Discount
Cash received from exercises of stock options
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options
Stock exchanged at fair value upon exercises of stock options
Stock Cancelled To Cover Price Of Options Exercises
No authoritative reference available.
Tax benefits realized from exercises of stock options
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options
Statement of Comprehensive Income [Abstract]
Other comprehensive (loss) income, net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax
Deferred taxes
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax
Foreign currency translation adjustments, net of tax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Reclassification of realized loss on settled derivative instruments to net income
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax
Deferred taxes
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax
Reclassification of realized loss on settled derivative instruments to net income, net of tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax
Pension liability adjustments
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax
Deferred taxes
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax
Pension liability adjustments, net of tax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Total other comprehensive (loss) income, net of tax
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Schedule of Selected Quarterly Financial Data
Schedule of Quarterly Financial Information [Table Text Block]
Weighted average grant-date fair value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Expected term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Expected volatility
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
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Senior unsecured notes, face amount
Debt maturity date
Debt Instrument, Maturity Date
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Shares of Common stock
Common Stock [Member]
Additional paid-in capital
Additional Paid-in Capital [Member]
Retained earnings
Retained Earnings [Member]
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Member]
Balance, value
Stockholders' Equity Attributable to Parent
Balance, shares
Shares, Issued
Other comprehensive income (loss), net of tax
Issuances of stock, value
Stock Issued During Period, Value, New Issues
Issuances of stock, shares
Stock Issued During Period, Shares, New Issues
Repurchases of stock, value
Repurchases of stock, shares
Cash dividend
Dividends, Common Stock, Cash
Special cash dividend
Dividends, Cash
Adjustments for income tax benefits from stock-based compensation
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Stock-based compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Dividend received, net of contribution paid, from the spin-off of New SAIC
Adjustments to Additional Paid in Capital, Contribution Recevied from Divestures
Adjustments to Additional Paid in Capital, Contribution Recevied from Divestures
Spin-off of New SAIC
Stockholders' Equity Note, Spinoff Transaction
Balance, value
Balance, shares
Accumulated Other Comprehensive Loss
Stockholders' Equity Note Disclosure [Text Block]
Schedule of Notes Payable and Long-Term Debt
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of Maturities of Notes Payable and Long-Term Debt
Schedule of Maturities of Long-term Debt [Table Text Block]
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Equipment
Equipment [Member]
Building
Building [Member]
Building improvements and leasehold improvements
Building Improvements And Leasehold Improvements [Member]
Building Improvements And Leasehold Improvements [Member].
Office Furniture
Furniture and Fixtures [Member]
Generation facility
Generation Facility [Member]
Generation Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)
Property, Plant and Equipment, Estimated Useful Lives
Estimated useful lives (in years)
Property, Plant and Equipment, Useful Life
Bad debt expense
Revolving Credit Facility
Line Of Credit Facilities [Text Block]
Line of Credit Facilities
Separation transaction expenses, net of tax
Schedule of Certain Financial Statement Captions
Schedule Of Certain Financial Statement Captions [Text Block]
Schedule Of Certain Financial Statement Captions
Statutory federal income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Document Documentand Entity Information [Abstract]
Document Documentand Entity Information [Abstract]
Entities [Table]
Entities [Table]
Document Information [Line Items]
Document Information [Line Items]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Trading Symbol
Trading Symbol
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Current Reporting Status
Entity Current Reporting Status
Entity Voluntary Filers
Entity Voluntary Filers
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Public Float
Entity Public Float
Legal Entity [Axis]
Cash flows from operating activities of continuing operations:
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Income from discontinued operations
Adjustments to reconcile net income to net cash provided by continuing operations:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Stock-based compensation
Share-based Compensation
Intangible asset impairment charges
Restructuring charges, net
Restructuring Costs
Net gain on sales and disposals of assets
Gain (Loss) on Disposition of Other Assets
Other
Other Noncash Income (Expense)
Increase (decrease) in cash and cash equivalents, net of effects of acquisitions and dispositions, resulting from changes in:
Increase (Decrease) in Operating Capital [Abstract]
Receivables
Increase (Decrease) in Receivables
Inventory, prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Deferred income taxes
Increase (Decrease) in Deferred Income Taxes
Other assets
Increase (Decrease) in Other Operating Assets
Accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Accrued payroll and employee benefits
Increase (Decrease) in Employee Related Liabilities
Income taxes receivable/payable
Increase (Decrease) in Income Taxes Payable
Other long-term liabilities
Increase (Decrease) in Other Accrued Liabilities
Total cash flows provided by operating activities of continuing operations
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Cash flows from investing activities of continuing operations:
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Proceeds from note payable to Leidos Holdings, Inc.
Proceeds from Related Party Debt, Investing Activity
Proceeds from Related Party Debt, Investing Activity
Payments on note payable to Leidos Holdings, Inc.
Proceeds from (Repayments of) Related Party Debt, Investing Activity
Proceeds from (Repayments of) Related Party Debt, Investing Activity
Expenditures for property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Acquisitions of businesses, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Net proceeds (payments) for purchase price adjustments related to prior year acquisitions
Payments for (Proceeds from) Previous Acquisition
Proceeds from sale of assets
Proceeds from Sale of Property, Plant, and Equipment
Net proceeds of cost method investments
Net Proceeds (Purchases) of Cost Method Investments
Net Proceeds (Purchases) of Cost Method Investments
Dividend received from the spin-off of New SAIC
Contribution paid related to the separation of New SAIC
Payments for Divestiture of Business
Payments for Divestiture of Business
Other
Payments for (Proceeds from) Other Investing Activities
Total cash flows provided by (used in) investing activities of continuing operations
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Cash flows from financing activities of continuing operations:
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Proceeds from note with SAIC, Inc.
Proceeds from Notes Payable
Payments on note with SAIC, Inc.
Proceeds from (Repayments of) Related Party Debt
Payments on notes payable and long-term debt
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities
Payments for deferred financing costs
Payments of Financing Costs
Payment from New SAIC for deferred financing costs
Proceeds from Repayment of Financing Costs
Proceeds from Repayment of Financing Costs
Proceeds from real estate financing transaction
Sale Leaseback Transaction, Gross Proceeds
Proceeds from debt issuance
Proceeds from Issuance of Debt
Distribution of debt to New SAIC
Sales of stock and exercises of stock options
Proceeds from Issuance or Sale of Equity
Shares repurchased or retired or withheld for tax withholdings on vesting of restricted stock
Dividends payments
Payments of Dividends
Other
Proceeds from (Payments for) Other Financing Activities
Total cash flows used in financing activities of continuing operations
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Decrease in cash and cash equivalents from continuing operations
Increase (Decrease) In Cash And Cash Equivalents From Continuing Operations
Increase (decrease) in cash and cash equivalents from continuing operations
Cash flows from discontinued operations:
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Increase in cash and cash equivalents from discontinued operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Cash provided by operating activities of discontinued operations
Cash Provided by (Used in) Investing Activities, Discontinued Operations
Cash used in financing activities of discontinued operations
Cash Provided by (Used in) Financing Activities, Discontinued Operations
Cash used in financing activities of discontinued operations
Net Cash Provided by (Used in) Discontinued Operations
Effect of foreign currency exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Total (decrease) increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of year
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents at end of year
Earnings Per Share (EPS)
Earnings Per Share [Text Block]
Operating Activities [Axis]
Operating Activities [Axis]
Operating Activities [Domain]
Operating Activities [Domain]
Continuing Operations
Continuing Operations [Member]
Discontinued Operations
Discontinued Operations [Member]
Vested Stock Awards
Vested Stock Awards [Member]
Vested Stock Awards [Member]
Type of Deferred Compensation [Axis]
Type of Deferred Compensation [Axis]
Total stock-based compensation expense recorded in continuing operations
Tax benefits recognized from stock-based compensation
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Intersegment Eliminations
Consolidation, Eliminations [Member]
Corporate and Other
Corporate and Other [Member]
Operating income (loss)
Amortization of intangible assets
Stock Options [Axis]
Stock Options [Axis]
Stock Options [Axis]
Stock Options [Domain]
Stock Options [Domain]
Stock Options [Domain]
Opening [Member]
Opening [Member]
Opening [Member]
Closing [Member]
Closing [Member]
Closing [Member]
SAIC Separation Adjustment [Member]
SAIC Separation Adjustment [Member]
SAIC Separation Adjustment [Member]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
2006 Equity Incentive Plan
Two Thousand Six Equity Incentive Plan [Member]
Two Thousand Six Equity Incentive Plan [Member]
Employee Stock Purchase Plan
Employee Stock Purchase Plan [Member]
Employee Stock Purchase Plan [Member]
Type of Arrangement and Non-arrangement Transactions [Axis]
Type of Arrangement and Non-arrangement Transactions [Axis]
Arrangements and Non-arrangement Transactions [Domain]
Arrangements and Non-arrangement Transactions [Domain]
Group One
Group One [Member]
Group One [Member]
Group Two
Group Two [Member]
Group Two [Member]
Title of Individual [Axis]
Title of Individual [Axis]
Title of Individual with Relationship to Entity [Domain]
Relationship to Entity [Domain]
Outside Directors
Outside Directors [Member]
Outside Directors [Member]
Components Of Common Stock [Axis]
Components Of Common Stock [Axis]
Components Of Common Stock [Axis]
Components Of Common Stock By Type [Domain]
Components Of Common Stock By Type [Domain]
Components Of Common Stock By Type [Domain]
Performance Based Restricted Stock Awards
Performance Based Restricted Stock Awards [Member]
Performance Based Restricted Stock Awards [Member]
Special dividend
Period of exercise of vested options after participants death or disability
Period Of Exercise Of Vested Options After Participants Death Or Disability
Period Of Exercise Of Vested Options After Participants Death Or Disability
Stock awards exercisable period (in months)
Stock Awards Exercisable Period
Stock Awards Exercisable Period
Percentage of stock awards vest or exercisable after one year
Percentage Of Stock Awards Vest Or Exercisable After One Year
Percentage Of Stock Awards Vest Or Exercisable After One Year
Percentage of stock awards vest or exercisable after two years
Percentage Of Stock Awards Vest Or Exercisable After Two Years
Percentage Of Stock Awards Vest Or Exercisable After Two Years
Percentage of stock awards vest or exercisable after three years
Percentage Of Stock Awards Vest Or Exercisable After Three Years
Percentage Of Stock Awards Vest Or Exercisable After Three Years
Percentage of stock awards vest or exercisable after four years
Percentage Of Stock Awards Vest Or Exercisable After Four Years
Percentage Of Stock Awards Vest Or Exercisable After Four Years
Stock reserved for future issuance
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Vesting period
Award vesting period (in years)
Awards Vesting Period
Awards Vesting Period
Vesting interest each year
Stock Based Compensation Vesting Interest Each Year
Stock based compensation vesting interest each year
Years of interest rates
Interest Rate On Each Year
Interest rate on each year
Percentage of stock compensation plans awards that vest after January 1, 2006
Percentage Of Stock Compensation Plans Awards Vest After Certain Date
Percentage Of Stock Compensation Plans Awards Vest After Certain Date
Percentage of market price per share for stock purchase program
Percentage Of Market Price Per Share For Stock Purchase Program
Percentage Of Market Price Per Share For Stock Purchase Program
Percentage of market price for employee purchase program for stock purchases during non-compensatory period
Percentage Of Market Price During Non Compensatory Period
Percentage Of Market Price During Non Compensatory Period
Shares authorized and reserved for future issuance under the ESPP
Common Stock, Capital Shares Reserved for Future Issuance
Expected term
Unrecognized compensation cost, net of estimated forfeitures
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Expected weighted-average period of recognition, years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Maximum percentage that will ultimately be awarded
Maximum Percentage That Will Ultimately Vest For Shares Provided Under Long Term Performance Based Incentive Equity Awards Based On Target Amount Stated In Agreement
Maximum Percentage That Will Ultimately Vest for Shares Provided Under Long Term Performance Based Incentive Equity Awards Based on Target Amount Stated in Agreement
Increase of expense related to the modification
Allocated Share-based Compensation Expense, Additional, Vested Awards
Allocated Share-based Compensation Expense, Additional, Vested Awards
Additional incremental fair value
Allocated Share-based Compensation Expense, Additional, Unvested Awards
Allocated Share-based Compensation Expense, Additional, Unvested Awards
Weighted average modification fair value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value, Modification
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value, Modification
Modification results
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost
Incremental share factor
Incremental Share Factor
Incremental Share Factor
Share price
Share Price
Decrease in share factor
Decrease In Share Factor
Decrease In Share Factor
Schedule of Changes in Goodwill by Segment
Schedule of Goodwill [Table Text Block]
Schedule of Intangible Assets Including Estimates of Assets Acquired
Schedule of Intangible Assets and Goodwill [Table Text Block]
Schedule of Amortization Expense for Finite-Lived Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Pre Spin-off
Pre Spin-off [Member]
Pre Spin-off [Member]
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Leidos Holding Inc.
Parent Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Notes payable, related parties
Notes Payable, Related Parties
Credit agreement guaranteed by the company prior to spin-off
Line of Credit Facility, Current Borrowing Capacity
Credit facility, maturity date
Line Of Credit Facility Maturity Year
Line Of Credit Facility Maturity Year
Period extension for portions of intercompany loans (years)
Period Extension For Portions Of Intercompany Loans
Period extension for portions of intercompany loans.
Note receivable from Leidos Holdings, Inc. (Note 8)
Notes Receivable, Related Parties, Noncurrent
Notes payable
Notes Payable, Noncurrent
Distribution upon separation
Distribution upon Separation
Distribution upon Separation
Payment towards dividends
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Receivables, net
Inventory, prepaid expenses and other current assets
Assets of discontinued operations
Total current assets
Assets, Current
Property, plant and equipment, net
Intangible assets, net
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDER’S EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable and accrued liabilities
Accrued payroll and employee benefits
Notes payable and long-term debt, current portion
Liabilities of discontinued operations
Total current liabilities
Liabilities, Current
Notes payable and long-term debt, net of current portion
Long-term Debt and Capital Lease Obligations
Note payable to Leidos, Holdings, Inc. (Note 8)
Other Notes Payable, Noncurrent
Other long-term liabilities
Commitments and contingencies
Commitments and Contingencies
Stockholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, $.0001 par value, 10 million shares authorized and no shares issued and outstanding at January 31, 2014 and 2013
Preferred Stock, Value, Issued
Common stock
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Total stockholders' equity
Total liabilities and stockholders' equity
Liabilities and Equity
Income Taxes
Income Tax Disclosure [Text Block]
Decrease in accrued stock repurchases
Increase (Decrease) In Accrued Stock Repurchases
Increase (decrease) in accrued stock repurchases.
Vested stock issued as settlement of annual accrued bonus
Stock Issued, Vested Stock Issued As Settlement Of Annual Bonus Accruals
Stock Issued, Vested Stock Issued as Settlement of Annual Bonus Accruals.
Stock issued in lieu of cash dividends
Stock Issued, In Lieu of Cash Dividend
Stock Issued, In Lieu of Cash Dividend
Capital lease obligations
Capital Lease Obligations Incurred
Fair value of assets acquired in acquisitions
Fair Value of Assets Acquired
Cash paid in acquisitions, net of cash acquired of $0 million, $9 million and $5 million in fiscal 2014, 2013 and 2012, respectively
Forgiveness of accounts receivable to acquire equity interest in business combination
Accrued acquisition payables, net
Noncash or Part Noncash Acquisition, Payables Assumed
Liabilities assumed in acquisitions
Noncash or Part Noncash Acquisition, Value of Liabilities Assumed
Cash paid for interest (including discontinued operations)
Interest Paid
Cash paid for income taxes (including discontinued operations)
Income Taxes Paid