Foreign Exchange Contracts [Abstract] Foreign Exchange Contracts [Abstract] Contract maturity dates Foreign Currency Contracts Maximum Maturity Term Foreign Currency Contracts Maximum Maturity Term Unrealized gains expected to be reclassified into earnings Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Foreign exchange contracts opened during the period by company Foreign Exchange Contracts Opened During Period Total dollar amount of foreign exchange contracts opened during the period. Foreign exchange contracts closed during the period by company Foreign Exchange Contracts Closed During Period Total dollar amount of foreign exchange contracts closed during the period. Compensation and Retirement Disclosure [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Japan pension benefits [Member] Foreign Pension Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Current liabilities Pension and Other Postretirement Defined Benefit Plans, Current Liabilities Non-current liabilities Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Net amount recognized Pension and Other Postretirement Defined Benefit Plans, Liabilities Amplidata Purchase Price Allocation [Abstract] Amplidata Purchase Price Allocation [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Amplidata [Member] Amplidata [Member] Amplidata [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Goodwill Goodwill Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Accounting Policies [Abstract] Fiscal Period, Policy [Policy Text Block] Fiscal Period, Policy [Policy Text Block] Use of Estimates and Assumption Use of Estimates, Policy [Policy Text Block] Product Warranties Disclosures [Abstract] Warranty accrual, beginning of period Standard Product Warranty Accrual Warranty liabilities assumed as a result of the Acquisition Standard Product Warranty Accrual, Additions from Business Acquisition Charges to operations Standard Product Warranty Accrual, Warranties Issued Utilization Standard Product Warranty Accrual, Payments Changes in estimate related to pre-existing warranties Standard Product Warranty Accrual, Preexisting, Increase (Decrease) Warranty accrual, end of period Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Issued interim award against losses Arbitration Award Amount of interim arbitration award entered in legal matter. Statutory rate specified as pre-award interest rate Arbitration Award Interest Rate Rate at which arbitration award accrued interest. Pre Judgment Interest Pre Judgment Interest Amount of interest accrued on the arbitration award before the judgment was given. Amount of total award issued by the arbitrator Arbitration Award Plus Pre Award Interest Total of arbitration award plus pre-award interest. Amount of total award issued by arbitrator vacated Arbitration Award Vacated Amount of total award issued by arbitrator vacated. Final Arbitration Award Final Arbitration Award Final Arbitration Award Paid Disputed Post Award Interest Disputed Post Award Interest Disputed Post Award Interest on the Arbitration Award Post Award Interest Post Award Interest Amount of interest accrued on the arbitration award from the interim to the final judgment date Loss Contingency, Range of Possible Loss, Maximum Loss Contingency, Range of Possible Loss, Maximum Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Gross Asset Derivative Asset, Fair Value, Amount Offset Derivative Asset, Fair Value, Amount Offset The amount as of the balance sheet date of the fair value of derivative assets that in accordance with the entity's accounting policy was offset under a master netting arrangement. Derivative Assets Derivative Asset Derivative Asset, Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative Asset, Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative Asset, Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative, Collateral, Obligation to Return Cash Derivative, Collateral, Obligation to Return Cash Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Liability, Fair Value, Gross Liability Derivative Liability, Fair Value, Gross Liability Derivative Liability, Fair Value, Amount Offset Derivative Liability, Fair Value, Amount Offset The amount as of the balance sheet date of the fair value of derivative liabilities that in accordance with the entity's accounting policy were offset under a master netting arrangement. Derivative Liabilities Derivative Liability Derivative Liability, Financial Instruments Subject to Master Netting Arrangement, Elected Not to Be Offset Derivative Liability, Financial Instruments Subject to Master Netting Arrangement, Elected Not to Be Offset Derivative Liability, Financial Instruments Subject to Master Netting Arrangement, Elected Not to Be Offset Derivative, Collateral, Right to Reclaim Cash Derivative, Collateral, Right to Reclaim Cash Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative Assets Derivative, Fair Value, Gross Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Or, fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Derivative, Fair Value, Amount Offset Derivative, Fair Value, Amount Offset The amount as of the balance sheet date of the fair value of derivative assets that in accordance with the entity's accounting policy was offset under a master netting arrangement. Or, the amount as of the balance sheet date of the fair value of derivative liabilities that in accordance with the entity's accounting policy were offset under a master netting arrangement. Derivative Assets (Liabilities), at Fair Value, Net Derivative Assets (Liabilities), at Fair Value, Net Derivative Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset Derivative Collateral Obligation To Return Cash or Right To Reclaim Cash Derivative Collateral Obligation To Return Cash or Right To Reclaim Cash The amount of the obligation to return cash collateral under master netting arrangements that have not been offset against net derivative instrument positions. Or, the amount of the right to reclaim cash collateral under master netting arrangements that have not been offset against net derivative instrument positions. Derivative, Fair Value, Amount Offset Against Collateral, Net Derivative, Fair Value, Amount Offset Against Collateral, Net Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other current assets [Member] Other Current Assets [Member] Accrued expenses [Member] Accrued Expenses [Member] Accrued expenses. Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign exchange contracts [Member] Foreign Exchange Contract [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative Asset Derivatives Designated as Hedging Instruments Fair Value, Liability Derivatives Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Short-term investments Available-for-sale Securities Accounts receivable, net Accounts Receivable, Net, Current Inventories Inventory, Net Other current assets Other Assets, Current Total current assets Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net Other intangible assets, net Other Intangible Assets, Net Other non-current assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued arbitration award Arbitration Award Reserve Amount of reserve on the balance sheet as of quarter end related to the arbitration award. Accrued expenses Accrued Liabilities, Current Accrued compensation Employee-related Liabilities, Current Accrued warranty Accrued Short-Term Warranty The carrying value as of the balance sheet date for estimated warranty costs included within short-term liabilities. Short-term Debt Short-term Debt Current portion of long-term debt Long-term Debt, Current Maturities Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Notes 4 and 5) Commitments and Contingencies Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.01 par value; authorized - 5 shares; issued and outstanding - none Preferred Stock Values Dollar value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) whether issued at par value, no par or stated value. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Common stock, $.01 par value; authorized - 450 shares; issued - 261 shares; outstanding - 232 and 234 shares, respectively Common Stock Values Dollar value of issued common stock whether issued at par value, no par or stated value. Note: elements for number of common shares, par value and other disclosure concepts are in another section within stockholders' equity. Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Treasury stock - common shares at cost; 29 and 27 shares, respectively Treasury Stock, Value Total shareholders' equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders' equity Liabilities and Equity Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Restructuring and Related Activities [Abstract] Employee Termination Benefits and Other Charges Restructuring and Related Activities Disclosure [Text Block] Income Taxes Disclosure [Table] Income Taxes Disclosure [Table] Income Taxes Disclosure [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Western Digital Corporation [Member] Parent Company [Member] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income tax provision Income Tax Expense (Benefit) Tax Benefit Resulting From Retroactive Extension Of Research And Development Credit Tax Benefit Resulting From Retroactive Extension Of Research And Development Credit Tax Benefit Resulting From Retroactive Extension Of Research And Development Credit Expiration date of tax holiday in Malaysia, Philippines, Singapore and Thailand Income Tax Holiday, Termination Date Increase (Decrease) in liability for unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Unrecognized Tax Benefits, Increase Resulting from Acquisition Unrecognized Tax Benefits, Increase Resulting from Acquisition Unrecognized tax benefits Unrecognized Tax Benefits Proposed IRS adjustments to Pre-tax income Proposed IRS Adjustments to Pretax Income Proposed IRS adjustments to pre-tax income. Foreign Exchange Contracts Derivative Instruments and Hedging Activities Disclosure [Text Block] Document Document And Entity Information [Abstract] Document Document and Entity Information [Abstract] 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 Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Accounting Changes and Error Corrections [Abstract] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Inventories; Property, Plant and Equipment; and Other Intangible Assets Supplemental Financial Information Table [Text Block] Supplemental Financial Information Table [Text Block] Changes in Warranty Accrual Schedule of Product Warranty Liability [Table Text Block] Available-for-sale Securities [Table Text Block] Available-for-sale Securities [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Income Statement [Abstract] Revenue, net Sales Revenue, Goods, Net Cost of revenue Cost of Goods Sold Gross margin Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense (Excluding Acquired in Process Cost) Selling, general and administrative Selling, General and Administrative Expense Charges related to arbitration award Arbitration Award Provision Amount charged against operating income for arbitration award. Employee termination, asset impairment and other charges Employee termination, asset impairment and other charges Employee termination, asset impairment and other charges incurred. Total operating expenses Operating Expenses Operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest and other income Investment Income, Interest Interest and other expense Interest And Other Expense Expense for borrowed money and other non-operating activities. Total other expense, net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Net income Net Income (Loss) Attributable to Parent Income per common share: Earnings Per Share [Abstract] Basic Earnings Per Share, Basic Diluted Earnings Per Share, Diluted Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted 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] Employee termination benefits One-time Termination Benefits [Member] Contract termination and other Contract Termination [Member] Impairment of assets Impairment Of Property Plant And Equipment [Member] Impairment of property, plant and equipment. Employee Termination, Asset Impairment and Other Charges [Line Items] Restructuring Cost and Reserve [Line Items] Employee termination, asset impairment and other charges Restructuring Costs Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Restructuring Reserve Restructuring Reserve Accruals Restructuring Charges Payments Payments for Restructuring Restructuring Reserve Unfunded Status of Benefit Obligations and Plan Assets Schedule of Defined Benefit Plans Disclosures [Table Text Block] Unfunded Amounts Recognized on Consolidated Balance Sheet Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Computation of Basic and Diluted Income Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Thailand Flooding [Abstract] Thailand Flooding [Abstract] Unusual or Infrequent Items Disclosure [Text Block] Unusual or Infrequent Items Disclosure [Text Block] 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] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Numbers of Shares, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted stock, Number of share granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Assumed in Period Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Assumed in Period Share based compensation arrangement by share based payment award equity instruments other than options assumed in period in a business combination. Restricted stock, Number of share vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Numbers of Shares, Ending Balance Number of share, Expected to vest after April 3, 2015 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Outstanding Number Share based compensation arrangement by share based payment award equity instruments other than options expected to vest outstanding number. Weighted Average Grant Date Fair Value Per Share, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Restricted stock, Granted, Weighted Average Grant Date Fair Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Assumed in Period Weighted Average Grant Date Fair Value Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Assumed in Period Weighted Average Grant Date Fair Value Share based compensation arrangement by share based payment award equity instruments other than options assumed in period in a business combination weighted average grant date fair value. Restricted stock, Vested, Weighted Average Grant Date Fair Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value Share based compensation arrangement by share based payment awards equity instruments other than options forfeited in period weighted average grant date fair value. Weighted Average Grant Date Fair Value Per Share, Ending Balance Weighted Average Grant Date Fair Value Per Share, Expected to vest after April 3, 2015 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Outstanding Weighted Average Grant Date Fair Value Share based compensation arrangement by share based payment award equity instruments other than options expected to vest outstanding weighted average grant date fair value. Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] 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] Term loan facility [Member] Term Loan [Member] Term loan. Revolving Credit Facility [Member] Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total unsecured loan under credit facility Unsecured Loan Under Credit Facility Total term loan amount borrowed under credit facility. Credit facility revolving loan Line Of Credit Facility Amount Available To Borrow Line of Credit Facility Amount Available to Borrow Write off of Deferred Debt Issuance Cost Write off of Deferred Debt Issuance Cost Line of credit facility additional borrowing capacity Credit Facility Additional Borrowing Capacity Amount by which the credit facility can be expanded. Period of Term Loan Facility Period of Term Loan Facility Period of term loan facility. Interest rate of borrowing under credit facility Debt Instrument, Interest Rate, Effective Percentage Remaining outstanding balance term loan facility Debt, Long-term and Short-term, Combined Amount Sublimit for Letters of Credit Under Revolving Credit Facility Sublimit for Letters of Credit Under Revolving Credit Facility Sublimit for Letters of Credit Under Revolving Credit Facility. Sublimit for Swing Line Loans Under Revolving Credit Facility Sublimit for Swing Line Loans Under Revolving Credit Facility Sublimit for Swing Line Loans Under Revolving Credit Facility. Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term Debt, Maturities, Repayments of Principal in Year Five Long-term Debt, Maturities, Repayments of Principal in Year Five Fair Value and Balance Sheet Location of Contracts Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. Gains (Losses) of Derivatives in Cash Flow Hedging Relationships Derivative Instruments, Gain (Loss) [Table Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Adjustments to reconcile net income to net cash provided by operations: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Stock-based compensation Share-based Compensation Deferred income taxes Deferred Income Tax Expense (Benefit) Gain from insurance recovery Gain On Insurance Recovery Total gain realized as a result of insurance recovery received. Loss on disposal of assets Gain (Loss) on Disposition of Property Plant Equipment Non-cash portion of employee termination benefits, asset impairment and other charges Non Cash Portion Of Employee Termination Benefits And Other Charges Non Cash Portion Of Employee Termination Benefits And Other Charges Other Operating Activities, Cash Flow Statement Other Operating Activities, Cash Flow Statement Changes in: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Accounts payable Increase (Decrease) in Accounts Payable, Trade Accrued arbitration award Increase Decrease In Arbitration Award Reserve The increase (decrease) during the reporting period in the accrued arbitration award reserve. Accrued expenses Increase (Decrease) in Accrued Liabilities Accrued compensation Increase (Decrease) in Employee Related Liabilities Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from Sale of Property, Plant, and Equipment Proceeds from Sale of Property, Plant, and Equipment Proceeds from Sale and Maturity of Other Investments Proceeds from Sale and Maturity of Other Investments Purchases of investments Payments to Acquire Available-for-sale Securities Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Payments for (Proceeds from) Other Investing Activities Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Issuance of stock under employee stock plans Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options Taxes paid on vested stock awards under employee stock plans Taxes Paid On Vested Stock Awards Under Employee Stock Plans Taxes paid on vested stock awards under employee stock plans. Excess tax benefits from employee stock plans Excess Tax Benefit from Share-based Compensation, Financing Activities Repurchases of common stock Payments for Repurchase of Common Stock Dividends to shareholders Payments of Dividends Proceeds from Debt, Net of Issuance Costs Proceeds from Debt, Net of Issuance Costs Repayment of debt Repayments of Long-term Debt Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid (received) for income taxes Income Taxes Paid Cash paid for interest Interest Paid Supplemental disclosure of non-cash financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Accrual of cash dividend declared Cash Dividend Declared Cash dividend declared but not yet paid during the period reported. Supplemental Financial Statement Data [Abstract] Supplemental Financial Statement Data [Abstract] Product warranty, Minimum Product Warranty Period Minimum Product warranty period minimum. Product warranty, Maximum Product Warranty Period Maximum Product warranty period maximum. Long-term portion of the warranty accrual classified in other liabilities Product Warranty Accrual, Noncurrent Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Schedule of Restructuring Reserve by Type of Cost Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Rollforward of Employment Termination Benefit Liability Restructuring and Related Costs [Table Text Block] Supplemental Financial Statement Data Supplemental Balance Sheet Disclosures [Text Block] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Inventories: Inventory, Net [Abstract] Raw materials and component parts Inventory, Raw Materials, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Total inventories Property, plant and equipment: Property, Plant and Equipment, Net [Abstract] Property, plant and equipment Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Other intangible assets: Finite-Lived Intangible Assets, Net [Abstract] Other intangible assets, gross Other Intangible Assets, Gross Gross value of definite and indefinite-lived intangible assets, excluding goodwill. Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Other intangible assets, net Investments, Equity Securities [Abstract] Investments, Equity Securities [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Investment Type [Axis] Investment Type [Axis] Summary of Investments, by Type [Domain] Investments [Domain] US Treasury Securities [Member] US Treasury Securities [Member] US Government Agencies Debt Securities [Member] US Government Agencies Debt Securities [Member] Commercial Paper [Member] Commercial Paper [Member] Certificates of Deposit [Member] Certificates of Deposit [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Current Available-for-sale Securities, Current Available-for-sale Securities, Noncurrent Available-for-sale Securities, Noncurrent Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Gross Unrealized Gain (Loss) Available-for-sale Securities, Gross Unrealized Gain (Loss) Available-for-sale Securities, Fair Value Disclosure Investments, Fair Value Disclosure Available-for-sale Securities, Fair Value Available-for-sale Securities, Fair Value Available-for-sale Securities, Fair Value Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, authorized Preferred Stock, Shares Authorized Preferred stock, issued Preferred Stock, Shares Issued Preferred stock, outstanding Preferred Stock, Shares Outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, authorized Common Stock, Shares Authorized Common stock, issued Common Stock, Shares, Issued Common stock, outstanding Common Stock, Shares, Outstanding Treasury stock, shares Treasury Stock, Shares Employee stock options and other Weighted Average Number Diluted Shares Outstanding Adjustment Diluted Income per common share: Earnings Per Share, Basic and Diluted [Abstract] Anti-dilutive potential common shares excluded* Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Stock Option Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Restricted Stock Unit Activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Fair Value of Stock Options Granted Granted Stock Options Fair Value Assumptions Table [Text Block] Tabular disclosure of the weighted average assumptions used in calculating the fair value of stock options granted. Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Abstract] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Abstract] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Table] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Table] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Defined Benefit Plans Adjustment [Member] Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Translation Adjustment [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items] Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items] [Line Items] for Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) Beginning Balance Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Ending Balance Income per Common Share Earnings Per Share [Text Block] Virident Business Combination [Abstract] Virident Business Combination [Abstract] Virident [Member] Virident [Member] Virident [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total Financial Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Stock Option Activity [Abstract] Stock Option Activity [Abstract] Options outstanding, Beginning Balance, Numbers of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted, Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share Based Compensation Arrangement By Share Based Payment Award Options Assumed In Period Share Based Compensation Arrangement By Share Based Payment Award Options Assumed In Period Net number of share options (or share units) assumed during the period in a business combination. Exercised, Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Options Canceled or Expired In Period Share Based Compensation Arrangement By Share Based Payment Award Options Canceled or Expired In Period Share Based Compensation Arrangement By Share Based Payment Award Options Canceled or Expired In Period Options outstanding, Ending Balance, Numbers of Shares Exercisable at April 3, 2015 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Vested and expected to vest after April 3, 2015 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Options outstanding, Beginning Balance, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted, Weighted Average Exercise Price Per Share Share Based Compensation Options Granted Weighted Average Exercise Price The weighted average exercise price of options granted as share based compensation. Share Based Compensation Options Assumed Weighted Average Exercise Price Share Based Compensation Options Assumed Weighted Average Exercise Price The weighted average exercise price of options assumed in a business combination as share based compensation. Exercised, Weighted Average Exercise Price Per Share Share Based Compensation Options Exercises In Period Weighted Average Exercise Price The weighted average price at which option holders acquired shares when converting their stock options into shares. Canceled or expired, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Options outstanding, Ending Balance, Weighted Average Exercise Price Per Share Exercisable at April 3, 2015, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Vested and expected to vest after April 3, 2015, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Options outstanding at April 3, 2015, Weighted Average Remaining Contractual Life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable at April 3, 2015, Weighted Average Remaining Contractual Life (in years) Share Based Compensation Options Exercisable Remaining Contractual Life The weighted average remaining contractual life of options exercisable at the end of the period expressed in years. Vested and expected to vest after April 3, 2015, Weighted Average Remaining Contractual Life (in years) Share Based Compensation Arrangement By Share Based Payments Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term Share based payments award options vested and expected to vest outstanding weighted average remaining contractual term. Options outstanding at April 3, 2015, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Exercisable at April 3, 2015, Aggregate Intrinsic Value Share Based Compensation Options Exercisable Intrinsic Value The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and exercisable as of the end of the period. Vested and expected to vest after April 3, 2015, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Insurance Recoveries And Other Cost Reimbursement Insurance Recoveries And Other Cost Reimbursement Insurance recoveries and other cost reimbursements received related to the flood. Statement of Comprehensive Income [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Net unrealized gains (losses) on cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Change in net actuarial gains Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of revenue [Member] Cost of Sales [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion Amount of (Gain) Loss Reclassified From Accumulated OCI into Income Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Purchase Price Allocations Purchase Price Allocation Of Business Combination Table [Text Block] Purchase Price Allocation Of Business Combination [Table Text Block] Virident [Member] sTec [Member] sTec [Member] sTec [Member] Goodwill, Purchase Accounting Adjustments Goodwill, Purchase Accounting Adjustments Business Combination, Consideration Transferred Business Combination, Consideration Transferred Business Acquisition, Cost of Acquired Entity, Cash Paid Payments to Acquire Businesses, Gross Fair value of previously held cost-method investment transferred Business Combination, Consideration Transferred, Other Value allocated to goodwill Gain recognized during period upon fair value re-measurement of interest held Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Suboptimal exercise factor Share Based Compensation Fair Value Assumptions Suboptimal Exercise Factor Factor to estimate the amount of option exercises prior to the end of their respective term. Risk-free interest rates, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rates, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Expected stock price volatility, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected stock price volatility, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Weighted average expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Post-vesting termination rate Share Based Compensation Fair Value Assumptions Post Vesting Termination Rate Factor to estimate the amount of vested options that will be exercised within 90 days as a result of employee termination. Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Stock Based Compensation [Abstract] Stock Based Compensation [Abstract] Expenses on stock-based compensation Allocated Share-based Compensation Expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Total compensation cost related to unvested stock options and ESPP rights issued Unvested Employee Service Share Based Compensation Stock Option Awards And Employee Stock Purchase Plan Rights Issued But Not Yet Recognized As of the balance sheet date, the aggregate unrecognized cost of stock option awards made to employees under share-based compensation plans and employee stock purchase plan rights that have yet to vest. Weighted average service period Unvested Employee Service Share Based Compensation Stock Option Awards And Employee Stock Purchase Plan Rights Issued But Not Yet Recognized Period For Recognition The weighted average period over which unrecognized costs is expected to be recognized for employee service share based stock option awards and employee stock purchase plan rights, using a decimal to express in number of years. Expense related to the vesting of restricted stock unit awards Restricted Stock or Unit Expense EmployeeServiceShareBasedCompensationTaxBenefitFromRestrictedStockAmortizationExpense EmployeeServiceShareBasedCompensationTaxBenefitFromRestrictedStockAmortizationExpense Employee Service Share Based Compensation Tax Benefit From Restricted Stock Amortization Expense Unamortized fair value of all unvested restricted stock unit awards Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted average vesting period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Compensation cost for cash-settled stock appreciation rights Compensation Cost For Cash Settled Stock Appreciation Rights Compensation cost recognized in income during the period for cash-settled stock appreciation rights . EmployeeServiceShareBasedCompensationTaxBenefitFromStockAppreciationRightsCompensationExpense EmployeeServiceShareBasedCompensationTaxBenefitFromStockAppreciationRightsCompensationExpense Employee Service Share Based Compensation Tax Benefit From Stock Appreciation Rights Compensation Expense Total liability related to SARs Cash Settled Stock Appreciation Rights Liability Carrying value of the cash-settled stock appreciation rights at the balance sheet date . Options outstanding to purchase shares with exercise price below company stock price Options Outstanding To Purchase Shares With Exercise Price Below Company Stock Price Aggregate amount of options outstanding with an exercise price below the quoted price of the Company's stock on the date of the latest balance sheet presented. Options outstanding to purchase shares with exercise price below company stock price, intrinsic value Options Outstanding To Purchase Shares With Exercise Price Below Company Stock Price Intrinsic Value The total dollar difference between fair values of underlying shares reserved for issuance and exercising prices pertaining to options outstanding with an exercise price below the quoted price of the Company's stock on the date of the latest balance sheet presented. Aggregate intrinsic value of options exercised under the Company's stock option plan Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Grant-date fair value of the shares underlying the restricted stock awards Grant Date Fair Value Of Shares Underlying Restricted Stock Awards Grant-date fair value of shares underlying restricted stock awards. Forfeiture rate of restricted stock unit valuation assumption Forfeiture Rate Of Restricted Stock Unit Valuation Assumption Forfeiture rate of restricted stock unit valuation assumption. Stock Appreciation Right outstanding, weighted average exercise price Stock Appreciation Right Outstanding Weighted Average Exercise Price The weighted average exercise price at which grantees can exercise stock appreciation rights for cash settlement. Number of assumed SARs outstanding Stock Appreciation Rights Outstanding At Balance Sheet Date Stock appreciation rights outstanding at balance sheet date. Weighted average expected term of the Company's stock options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term StockRepurchaseProgramAdditionalAmountAuthorized StockRepurchaseProgramAdditionalAmountAuthorized Stock Repurchase Program Additional Amount Authorized Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Stock Repurchase Program Total Amount Authorized Stock Repurchase Program Total Amount Authorized Stock Repurchase Program Total Amount Authorized Treasury Stock, Shares, Acquired Treasury Stock, Shares, Acquired Treasury Stock, Value, Acquired, Cost Method Treasury Stock, Value, Acquired, Cost Method RemainingAmountForRepurchaseUnderShareRepurchaseProgram RemainingAmountForRepurchaseUnderShareRepurchaseProgram Remaining Amount For Repurchase Under Share Repurchase Program Cash dividend Cash Dividend Per Common Share Declared Cash Dividend Per Common Share Declared Payments of Dividends Investments, Equity Securities By Maturity Date [Abstract] Investments, Equity Securities By Maturity Date [Abstract] Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available For Sale Securities Debt Maturities After Five Years Amortized Cost Available For Sale Securities Debt Maturities After Five Years Amortized Cost This item represents available-for-sale debt securities, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are expected to mature after five years from the balance sheet date. Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Available-for-sale Debt Securities, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale Securities, Debt Maturities After Five Years, Fair Value Available-for-sale Securities, Debt Maturities, after Five Years Fair Value This item represents the fair value of available-for-sale debt securities which are expected to mature after five years from the balance sheet date. Available-for-sale Securities, Debt Maturities, Fair Value Available-for-sale Securities, Debt Securities Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value Measurements at Reporting Date Using Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value Measurements at Reporting Date Using Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value Measurements at Reporting Date Using Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Fair Value by Asset Class [Domain] Asset Class [Domain] Money Market Funds [Member] Money Market Funds [Member] Bankers Acceptance [Member] Bankers Acceptance [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Total cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Short-term Investments, Fair Value Disclosure Short-term Investments, Fair Value Disclosure Short-term Investments, Fair Value Disclosure Long-term Investments, Fair Value Disclosure Long-term Investments, Fair Value Disclosure Long-term Investments, Fair Value Disclosure Auction-rate securities Total assets at fair value Assets, Fair Value Disclosure Derivative Liabilities Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Pensions and Other Post-retirement Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Benefit obligation Defined Benefit Plan, Benefit Obligation Fair value of plan assets Defined Benefit Plan, Fair Value of Plan Assets Unfunded status Defined Benefit Plan Unfunded Status Defined benefit plan unfunded status. sTec Purchase Price Allocation [Abstract] sTec Purchase Price Allocation [Abstract] Total Legal Proceedings Legal Matters and Contingencies [Text Block] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast [Member] Scenario, Forecast [Member] Expected long-term rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Expected contribution for pension plan Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year